diff --git a/fftools/ffmpeg_mux_init.c b/fftools/ffmpeg_mux_init.c
index bdda93a569..679caf8f37 100644
--- a/fftools/ffmpeg_mux_init.c
+++ b/fftools/ffmpeg_mux_init.c
@@ -2231,7 +2231,6 @@ static int of_parse_group_token(Muxer *mux, const char *token, char *ptr)
     };
     const AVClass class = {
         .class_name = "StreamGroupType",
-        .item_name  = av_default_item_name,
         .option     = opts,
         .version    = LIBAVUTIL_VERSION_INT,
     };
diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c
index 91ae71ff27..9e86d91a92 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -322,7 +322,6 @@ static int opt_abort_on(void *optctx, const char *opt, const char *arg)
     };
     static const AVClass class = {
         .class_name = "",
-        .item_name  = av_default_item_name,
         .option     = opts,
         .version    = LIBAVUTIL_VERSION_INT,
     };
diff --git a/fftools/ffplay_renderer.c b/fftools/ffplay_renderer.c
index 45ca84fa95..4e9e33b675 100644
--- a/fftools/ffplay_renderer.c
+++ b/fftools/ffplay_renderer.c
@@ -765,7 +765,6 @@ static void destroy(VkRenderer *renderer)
 
 static const AVClass vulkan_renderer_class = {
         .class_name = "Vulkan Renderer",
-        .item_name  = av_default_item_name,
         .version    = LIBAVUTIL_VERSION_INT,
 };
 
diff --git a/fftools/opt_common.c b/fftools/opt_common.c
index 02d7048c42..f5b73c9f2f 100644
--- a/fftools/opt_common.c
+++ b/fftools/opt_common.c
@@ -1069,7 +1069,6 @@ int opt_cpucount(void *optctx, const char *opt, const char *arg)
     };
     static const AVClass class = {
         .class_name = "cpucount",
-        .item_name  = av_default_item_name,
         .option     = opts,
         .version    = LIBAVUTIL_VERSION_INT,
     };
diff --git a/libavcodec/aacdec_template.c b/libavcodec/aacdec_template.c
index 2b3509c85f..9975805573 100644
--- a/libavcodec/aacdec_template.c
+++ b/libavcodec/aacdec_template.c
@@ -3447,7 +3447,6 @@ static const AVOption options[] = {
 
 static const AVClass aac_decoder_class = {
     .class_name = "AAC decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/aacenc.c b/libavcodec/aacenc.c
index 83c23cc2de..20d42a627b 100644
--- a/libavcodec/aacenc.c
+++ b/libavcodec/aacenc.c
@@ -1407,7 +1407,6 @@ static const AVOption aacenc_options[] = {
 
 static const AVClass aacenc_class = {
     .class_name = "AAC encoder",
-    .item_name  = av_default_item_name,
     .option     = aacenc_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/ac3dec_fixed.c b/libavcodec/ac3dec_fixed.c
index c9e5cda69c..cdab83d647 100644
--- a/libavcodec/ac3dec_fixed.c
+++ b/libavcodec/ac3dec_fixed.c
@@ -165,7 +165,6 @@ static const AVOption options[] = {
 
 static const AVClass ac3_decoder_class = {
     .class_name = "Fixed-Point AC-3 Decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/ac3dec_float.c b/libavcodec/ac3dec_float.c
index 39d3cbd282..c49ee2d94d 100644
--- a/libavcodec/ac3dec_float.c
+++ b/libavcodec/ac3dec_float.c
@@ -56,7 +56,6 @@ static const AVOption options[] = {
 
 static const AVClass ac3_eac3_decoder_class = {
     .class_name = "(E-)AC3 decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/ac3enc.c b/libavcodec/ac3enc.c
index 56c8d239c5..df76dda6ee 100644
--- a/libavcodec/ac3enc.c
+++ b/libavcodec/ac3enc.c
@@ -130,7 +130,6 @@ const AVOption ff_ac3_enc_options[] = {
 
 const AVClass ff_ac3enc_class = {
     .class_name = "AC-3 Encoder",
-    .item_name  = av_default_item_name,
     .option     = ff_ac3_enc_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/adpcmenc.c b/libavcodec/adpcmenc.c
index 63afffc58f..7f18fc2daf 100644
--- a/libavcodec/adpcmenc.c
+++ b/libavcodec/adpcmenc.c
@@ -989,7 +989,6 @@ static const AVOption options[] = {
 
 static const AVClass adpcm_encoder_class = {
     .class_name = "ADPCM encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/alac.c b/libavcodec/alac.c
index 538d1e5984..18791d426d 100644
--- a/libavcodec/alac.c
+++ b/libavcodec/alac.c
@@ -611,7 +611,6 @@ static const AVOption options[] = {
 
 static const AVClass alac_class = {
     .class_name = "alac",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/alacenc.c b/libavcodec/alacenc.c
index 9598e5861e..c28c2577f4 100644
--- a/libavcodec/alacenc.c
+++ b/libavcodec/alacenc.c
@@ -643,7 +643,6 @@ static const AVOption options[] = {
 
 static const AVClass alacenc_class = {
     .class_name = "alacenc",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/amfenc_av1.c b/libavcodec/amfenc_av1.c
index 3f164ccc59..949251d4e8 100644
--- a/libavcodec/amfenc_av1.c
+++ b/libavcodec/amfenc_av1.c
@@ -465,7 +465,6 @@ static const FFCodecDefault defaults[] = {
 
 static const AVClass av1_amf_class = {
     .class_name = "av1_amf",
-    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/amfenc_h264.c b/libavcodec/amfenc_h264.c
index bd544d12df..a6b82365ad 100644
--- a/libavcodec/amfenc_h264.c
+++ b/libavcodec/amfenc_h264.c
@@ -518,7 +518,6 @@ static const FFCodecDefault defaults[] = {
 
 static const AVClass h264_amf_class = {
     .class_name = "h264_amf",
-    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/amfenc_hevc.c b/libavcodec/amfenc_hevc.c
index 352564a301..9db01db28d 100644
--- a/libavcodec/amfenc_hevc.c
+++ b/libavcodec/amfenc_hevc.c
@@ -433,7 +433,6 @@ static const FFCodecDefault defaults[] = {
 };
 static const AVClass hevc_amf_class = {
     .class_name = "hevc_amf",
-    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c
index d31c067152..988f23d8bb 100644
--- a/libavcodec/apedec.c
+++ b/libavcodec/apedec.c
@@ -1744,7 +1744,6 @@ static const AVOption options[] = {
 
 static const AVClass ape_decoder_class = {
     .class_name = "APE decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/audiotoolboxenc.c b/libavcodec/audiotoolboxenc.c
index 42ab7ae6e4..ba3867f358 100644
--- a/libavcodec/audiotoolboxenc.c
+++ b/libavcodec/audiotoolboxenc.c
@@ -610,7 +610,6 @@ static const AVOption options[] = {
 #define FFAT_ENC_CLASS(NAME) \
     static const AVClass ffat_##NAME##_enc_class = { \
         .class_name = "at_" #NAME "_enc", \
-        .item_name  = av_default_item_name, \
         .option     = options, \
         .version    = LIBAVUTIL_VERSION_INT, \
     };
diff --git a/libavcodec/av1_metadata_bsf.c b/libavcodec/av1_metadata_bsf.c
index 41b02cc836..494245f333 100644
--- a/libavcodec/av1_metadata_bsf.c
+++ b/libavcodec/av1_metadata_bsf.c
@@ -211,7 +211,6 @@ static const AVOption av1_metadata_options[] = {
 
 static const AVClass av1_metadata_class = {
     .class_name = "av1_metadata_bsf",
-    .item_name  = av_default_item_name,
     .option     = av1_metadata_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/av1dec.c b/libavcodec/av1dec.c
index 7ffa7821e9..da05a0f039 100644
--- a/libavcodec/av1dec.c
+++ b/libavcodec/av1dec.c
@@ -1485,7 +1485,6 @@ static const AVOption av1_options[] = {
 
 static const AVClass av1_class = {
     .class_name = "AV1 decoder",
-    .item_name  = av_default_item_name,
     .option     = av1_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/cbs_av1.c b/libavcodec/cbs_av1.c
index 1d9ac5ab44..accea49828 100644
--- a/libavcodec/cbs_av1.c
+++ b/libavcodec/cbs_av1.c
@@ -1277,7 +1277,6 @@ static const AVOption cbs_av1_options[] = {
 
 static const AVClass cbs_av1_class = {
     .class_name = "cbs_av1",
-    .item_name  = av_default_item_name,
     .option     = cbs_av1_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/ccaption_dec.c b/libavcodec/ccaption_dec.c
index f91c92b373..5a69d9216b 100644
--- a/libavcodec/ccaption_dec.c
+++ b/libavcodec/ccaption_dec.c
@@ -934,7 +934,6 @@ static const AVOption options[] = {
 
 static const AVClass ccaption_dec_class = {
     .class_name = "Closed caption Decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/cfhdenc.c b/libavcodec/cfhdenc.c
index f447438491..75f41e701b 100644
--- a/libavcodec/cfhdenc.c
+++ b/libavcodec/cfhdenc.c
@@ -849,7 +849,6 @@ static const AVOption options[] = {
 
 static const AVClass cfhd_class = {
     .class_name = "cfhd",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/cinepakenc.c b/libavcodec/cinepakenc.c
index f15325ad0d..6bf5485871 100644
--- a/libavcodec/cinepakenc.c
+++ b/libavcodec/cinepakenc.c
@@ -148,7 +148,6 @@ static const AVOption options[] = {
 
 static const AVClass cinepak_class = {
     .class_name = "cinepak",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/cljrenc.c b/libavcodec/cljrenc.c
index 31ad5ce0cf..ee03dd3e2e 100644
--- a/libavcodec/cljrenc.c
+++ b/libavcodec/cljrenc.c
@@ -103,7 +103,6 @@ static const AVOption options[] = {
 
 static const AVClass cljr_class = {
     .class_name = "cljr encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/crystalhd.c b/libavcodec/crystalhd.c
index 86f6cfa6c1..e419d8e3ce 100644
--- a/libavcodec/crystalhd.c
+++ b/libavcodec/crystalhd.c
@@ -778,7 +778,6 @@ static int crystalhd_receive_frame(AVCodecContext *avctx, AVFrame *frame)
 #define DEFINE_CRYSTALHD_DECODER(x, X, bsf_name) \
     static const AVClass x##_crystalhd_class = { \
         .class_name = #x "_crystalhd", \
-        .item_name = av_default_item_name, \
         .option = options, \
         .version = LIBAVUTIL_VERSION_INT, \
     }; \
diff --git a/libavcodec/cuviddec.c b/libavcodec/cuviddec.c
index da37207cf2..02022148e0 100644
--- a/libavcodec/cuviddec.c
+++ b/libavcodec/cuviddec.c
@@ -1155,7 +1155,6 @@ static const AVCodecHWConfigInternal *const cuvid_hw_configs[] = {
 #define DEFINE_CUVID_CODEC(x, X, bsf_name) \
     static const AVClass x##_cuvid_class = { \
         .class_name = #x "_cuvid", \
-        .item_name = av_default_item_name, \
         .option = options, \
         .version = LIBAVUTIL_VERSION_INT, \
     }; \
diff --git a/libavcodec/dcadec.c b/libavcodec/dcadec.c
index cc23731b90..cf12124a58 100644
--- a/libavcodec/dcadec.c
+++ b/libavcodec/dcadec.c
@@ -410,7 +410,6 @@ static const AVOption dcadec_options[] = {
 
 static const AVClass dcadec_class = {
     .class_name = "DCA decoder",
-    .item_name  = av_default_item_name,
     .option     = dcadec_options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DECODER,
diff --git a/libavcodec/dcaenc.c b/libavcodec/dcaenc.c
index c731d79381..2b034b5648 100644
--- a/libavcodec/dcaenc.c
+++ b/libavcodec/dcaenc.c
@@ -1300,7 +1300,6 @@ static const AVOption options[] = {
 
 static const AVClass dcaenc_class = {
     .class_name = "DCA (DTS Coherent Acoustics)",
-    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/dnxhdenc.c b/libavcodec/dnxhdenc.c
index f52a2e9918..aa273b5c60 100644
--- a/libavcodec/dnxhdenc.c
+++ b/libavcodec/dnxhdenc.c
@@ -73,7 +73,6 @@ static const AVOption options[] = {
 
 static const AVClass dnxhd_class = {
     .class_name = "dnxhd",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/dolby_e.c b/libavcodec/dolby_e.c
index b8dac0fa3f..c80cf3ae62 100644
--- a/libavcodec/dolby_e.c
+++ b/libavcodec/dolby_e.c
@@ -1300,7 +1300,6 @@ static const AVOption options[] = {
 
 static const AVClass dolby_e_decoder_class = {
     .class_name = "Dolby E decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/dump_extradata_bsf.c b/libavcodec/dump_extradata_bsf.c
index 5506d5ed65..373fc9dad8 100644
--- a/libavcodec/dump_extradata_bsf.c
+++ b/libavcodec/dump_extradata_bsf.c
@@ -93,7 +93,6 @@ static const AVOption options[] = {
 
 static const AVClass dump_extradata_class = {
     .class_name = "dump_extradata bsf",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/dv_error_marker_bsf.c b/libavcodec/dv_error_marker_bsf.c
index 131c6fcbe6..19ac936e05 100644
--- a/libavcodec/dv_error_marker_bsf.c
+++ b/libavcodec/dv_error_marker_bsf.c
@@ -123,7 +123,6 @@ static const AVOption options[] = {
 
 static const AVClass dv_error_marker_class = {
     .class_name = "dv_error_marker",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/dvbsubdec.c b/libavcodec/dvbsubdec.c
index bcc607d1d7..ad05aa0bf3 100644
--- a/libavcodec/dvbsubdec.c
+++ b/libavcodec/dvbsubdec.c
@@ -1564,7 +1564,6 @@ static const AVOption options[] = {
 };
 static const AVClass dvbsubdec_class = {
     .class_name = "DVB Sub Decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/dvdsubdec.c b/libavcodec/dvdsubdec.c
index a5da0d7b08..11c3cc5e35 100644
--- a/libavcodec/dvdsubdec.c
+++ b/libavcodec/dvdsubdec.c
@@ -701,7 +701,6 @@ static const AVOption options[] = {
 };
 static const AVClass dvdsub_class = {
     .class_name = "dvdsubdec",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/dvdsubenc.c b/libavcodec/dvdsubenc.c
index 06c2cf5e5a..12745ae40b 100644
--- a/libavcodec/dvdsubenc.c
+++ b/libavcodec/dvdsubenc.c
@@ -496,7 +496,6 @@ static const AVOption options[] = {
 
 static const AVClass dvdsubenc_class = {
     .class_name = "VOBSUB subtitle encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/dvenc.c b/libavcodec/dvenc.c
index ce21247081..f0820bb2ee 100644
--- a/libavcodec/dvenc.c
+++ b/libavcodec/dvenc.c
@@ -1231,7 +1231,6 @@ static const AVOption dv_options[] = {
 
 static const AVClass dvvideo_encode_class = {
     .class_name = "dvvideo encoder",
-    .item_name  = av_default_item_name,
     .option     = dv_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/eac3enc.c b/libavcodec/eac3enc.c
index 4b3236d4e5..afadd77345 100644
--- a/libavcodec/eac3enc.c
+++ b/libavcodec/eac3enc.c
@@ -35,7 +35,6 @@
 
 static const AVClass eac3enc_class = {
     .class_name = "E-AC-3 Encoder",
-    .item_name  = av_default_item_name,
     .option     = &ff_ac3_enc_options[2], /* First two options are AC-3 only. */
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/evrcdec.c b/libavcodec/evrcdec.c
index af7640d7e1..9de8b8a771 100644
--- a/libavcodec/evrcdec.c
+++ b/libavcodec/evrcdec.c
@@ -924,7 +924,6 @@ static const AVOption options[] = {
 
 static const AVClass evrcdec_class = {
     .class_name = "evrc",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/exr.c b/libavcodec/exr.c
index b30d3b7404..a05f8bada6 100644
--- a/libavcodec/exr.c
+++ b/libavcodec/exr.c
@@ -2345,7 +2345,6 @@ static const AVOption options[] = {
 
 static const AVClass exr_class = {
     .class_name = "EXR",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/exrenc.c b/libavcodec/exrenc.c
index 36327f498c..ded7fad18b 100644
--- a/libavcodec/exrenc.c
+++ b/libavcodec/exrenc.c
@@ -535,7 +535,6 @@ static const AVOption options[] = {
 
 static const AVClass exr_class = {
     .class_name = "exr",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/extract_extradata_bsf.c b/libavcodec/extract_extradata_bsf.c
index baa629295f..aee63d1b5d 100644
--- a/libavcodec/extract_extradata_bsf.c
+++ b/libavcodec/extract_extradata_bsf.c
@@ -457,7 +457,6 @@ static const AVOption options[] = {
 
 static const AVClass extract_extradata_class = {
     .class_name = "extract_extradata",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/ffv1enc.c b/libavcodec/ffv1enc.c
index 2778c63012..5bd00f5d9e 100644
--- a/libavcodec/ffv1enc.c
+++ b/libavcodec/ffv1enc.c
@@ -1263,7 +1263,6 @@ static const AVOption options[] = {
 
 static const AVClass ffv1_class = {
     .class_name = "ffv1 encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/fic.c b/libavcodec/fic.c
index fb99802137..ddda8effe0 100644
--- a/libavcodec/fic.c
+++ b/libavcodec/fic.c
@@ -479,7 +479,6 @@ static const AVOption options[] = {
 
 static const AVClass fic_decoder_class = {
     .class_name = "FIC decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/filter_units_bsf.c b/libavcodec/filter_units_bsf.c
index 9336753148..a67d55e57f 100644
--- a/libavcodec/filter_units_bsf.c
+++ b/libavcodec/filter_units_bsf.c
@@ -268,7 +268,6 @@ static const AVOption filter_units_options[] = {
 
 static const AVClass filter_units_class = {
     .class_name = "filter_units",
-    .item_name  = av_default_item_name,
     .option     = filter_units_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/fitsdec.c b/libavcodec/fitsdec.c
index 284e945ba5..c1d0bd9ca6 100644
--- a/libavcodec/fitsdec.c
+++ b/libavcodec/fitsdec.c
@@ -316,7 +316,6 @@ static const AVOption fits_options[] = {
 
 static const AVClass fits_decoder_class = {
     .class_name = "FITS decoder",
-    .item_name  = av_default_item_name,
     .option     = fits_options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DECODER,
diff --git a/libavcodec/flacdec.c b/libavcodec/flacdec.c
index ed2de14d0a..95aee363f4 100644
--- a/libavcodec/flacdec.c
+++ b/libavcodec/flacdec.c
@@ -820,7 +820,6 @@ static const AVOption options[] = {
 
 static const AVClass flac_decoder_class = {
     .class_name = "FLAC decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/flacenc.c b/libavcodec/flacenc.c
index a449b73235..605e5db974 100644
--- a/libavcodec/flacenc.c
+++ b/libavcodec/flacenc.c
@@ -1743,7 +1743,6 @@ static const AVOption options[] = {
 
 static const AVClass flac_encoder_class = {
     .class_name = "FLAC encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/frwu.c b/libavcodec/frwu.c
index 70bc136765..fc6b7058af 100644
--- a/libavcodec/frwu.c
+++ b/libavcodec/frwu.c
@@ -110,7 +110,6 @@ static const AVOption frwu_options[] = {
 
 static const AVClass frwu_class = {
     .class_name = "frwu Decoder",
-    .item_name  = av_default_item_name,
     .option     = frwu_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/g722dec.c b/libavcodec/g722dec.c
index 231f1d32eb..9f40e0b740 100644
--- a/libavcodec/g722dec.c
+++ b/libavcodec/g722dec.c
@@ -51,7 +51,6 @@ static const AVOption options[] = {
 
 static const AVClass g722_decoder_class = {
     .class_name = "g722 decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/g723_1dec.c b/libavcodec/g723_1dec.c
index 5fe4a21d9b..4c8ebc9075 100644
--- a/libavcodec/g723_1dec.c
+++ b/libavcodec/g723_1dec.c
@@ -1105,7 +1105,6 @@ static const AVOption options[] = {
 
 static const AVClass g723_1dec_class = {
     .class_name = "G.723.1 decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/g726.c b/libavcodec/g726.c
index 6c5638760d..f25e60b21b 100644
--- a/libavcodec/g726.c
+++ b/libavcodec/g726.c
@@ -388,7 +388,6 @@ static const AVOption options[] = {
 
 static const AVClass g726_class = {
     .class_name = "g726",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/gif.c b/libavcodec/gif.c
index 11add64468..2a132fb18c 100644
--- a/libavcodec/gif.c
+++ b/libavcodec/gif.c
@@ -542,7 +542,6 @@ static const AVOption gif_options[] = {
 
 static const AVClass gif_class = {
     .class_name = "GIF encoder",
-    .item_name  = av_default_item_name,
     .option     = gif_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/gifdec.c b/libavcodec/gifdec.c
index a97a6d15fc..f99eaff73b 100644
--- a/libavcodec/gifdec.c
+++ b/libavcodec/gifdec.c
@@ -542,7 +542,6 @@ static const AVOption options[] = {
 
 static const AVClass decoder_class = {
     .class_name = "gif decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DECODER,
diff --git a/libavcodec/h264_metadata_bsf.c b/libavcodec/h264_metadata_bsf.c
index 39b9e8eee4..9a745b056b 100644
--- a/libavcodec/h264_metadata_bsf.c
+++ b/libavcodec/h264_metadata_bsf.c
@@ -703,7 +703,6 @@ static const AVOption h264_metadata_options[] = {
 
 static const AVClass h264_metadata_class = {
     .class_name = "h264_metadata_bsf",
-    .item_name  = av_default_item_name,
     .option     = h264_metadata_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c
index 9f5893c512..2c0cdf919d 100644
--- a/libavcodec/h264dec.c
+++ b/libavcodec/h264dec.c
@@ -1104,7 +1104,6 @@ static const AVOption h264_options[] = {
 
 static const AVClass h264_class = {
     .class_name = "H264 Decoder",
-    .item_name  = av_default_item_name,
     .option     = h264_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/h265_metadata_bsf.c b/libavcodec/h265_metadata_bsf.c
index 6787bd14a1..4fdd2a532e 100644
--- a/libavcodec/h265_metadata_bsf.c
+++ b/libavcodec/h265_metadata_bsf.c
@@ -483,7 +483,6 @@ static const AVOption h265_metadata_options[] = {
 
 static const AVClass h265_metadata_class = {
     .class_name = "h265_metadata_bsf",
-    .item_name  = av_default_item_name,
     .option     = h265_metadata_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/h266_metadata_bsf.c b/libavcodec/h266_metadata_bsf.c
index 1f0f875cfe..09e91dd80d 100644
--- a/libavcodec/h266_metadata_bsf.c
+++ b/libavcodec/h266_metadata_bsf.c
@@ -130,7 +130,6 @@ static const AVOption h266_metadata_options[] = {
 
 static const AVClass h266_metadata_class = {
     .class_name = "h266_metadata_bsf",
-    .item_name  = av_default_item_name,
     .option     = h266_metadata_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/hapenc.c b/libavcodec/hapenc.c
index 7de7358e3d..eb492c9db5 100644
--- a/libavcodec/hapenc.c
+++ b/libavcodec/hapenc.c
@@ -341,7 +341,6 @@ static const AVOption options[] = {
 
 static const AVClass hapenc_class = {
     .class_name = "Hap encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/hapqa_extract_bsf.c b/libavcodec/hapqa_extract_bsf.c
index 0d9b40aaa6..cf6872fe2d 100644
--- a/libavcodec/hapqa_extract_bsf.c
+++ b/libavcodec/hapqa_extract_bsf.c
@@ -120,7 +120,6 @@ static const AVOption options[] = {
 
 static const AVClass hapqa_extract_class = {
     .class_name = "hapqa_extract_bsf",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c
index b5311ae510..f21d15fe72 100644
--- a/libavcodec/hevcdec.c
+++ b/libavcodec/hevcdec.c
@@ -3676,7 +3676,6 @@ static const AVOption options[] = {
 
 static const AVClass hevc_decoder_class = {
     .class_name = "HEVC decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/huffyuvenc.c b/libavcodec/huffyuvenc.c
index b02b3c7a9a..73f543ac24 100644
--- a/libavcodec/huffyuvenc.c
+++ b/libavcodec/huffyuvenc.c
@@ -1066,14 +1066,12 @@ static const AVOption ff_options[] = {
 
 static const AVClass normal_class = {
     .class_name = "huffyuv",
-    .item_name  = av_default_item_name,
     .option     = normal_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
 static const AVClass ff_class = {
     .class_name = "ffvhuff",
-    .item_name  = av_default_item_name,
     .option     = ff_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/ituh263enc.c b/libavcodec/ituh263enc.c
index 97abfb3f45..6acb13299a 100644
--- a/libavcodec/ituh263enc.c
+++ b/libavcodec/ituh263enc.c
@@ -896,7 +896,6 @@ static const AVOption h263_options[] = {
 
 static const AVClass h263_class = {
     .class_name = "H.263 encoder",
-    .item_name  = av_default_item_name,
     .option     = h263_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -927,7 +926,6 @@ static const AVOption h263p_options[] = {
 };
 static const AVClass h263p_class = {
     .class_name = "H.263p encoder",
-    .item_name  = av_default_item_name,
     .option     = h263p_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/j2kenc.c b/libavcodec/j2kenc.c
index 5f95b772d1..e0eb73281a 100644
--- a/libavcodec/j2kenc.c
+++ b/libavcodec/j2kenc.c
@@ -1827,7 +1827,6 @@ static const AVOption options[] = {
 
 static const AVClass j2k_class = {
     .class_name = "jpeg 2000 encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c
index 691cfbd891..6e662761b0 100644
--- a/libavcodec/jpeg2000dec.c
+++ b/libavcodec/jpeg2000dec.c
@@ -2543,7 +2543,6 @@ static const AVOption options[] = {
 
 static const AVClass jpeg2000_class = {
     .class_name = "jpeg2000",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/jpeglsenc.c b/libavcodec/jpeglsenc.c
index 53394102df..89488d35cb 100644
--- a/libavcodec/jpeglsenc.c
+++ b/libavcodec/jpeglsenc.c
@@ -466,7 +466,6 @@ static const AVOption options[] = {
 
 static const AVClass jpegls_class = {
     .class_name = "jpegls",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libaomenc.c b/libavcodec/libaomenc.c
index aa800834fe..5d286fc98b 100644
--- a/libavcodec/libaomenc.c
+++ b/libavcodec/libaomenc.c
@@ -1546,7 +1546,6 @@ static const FFCodecDefault defaults[] = {
 
 static const AVClass class_aom = {
     .class_name = "libaom-av1 encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libaribb24.c b/libavcodec/libaribb24.c
index 29479e375d..0706b50c1c 100644
--- a/libavcodec/libaribb24.c
+++ b/libavcodec/libaribb24.c
@@ -387,7 +387,6 @@ static const AVOption options[] = {
 
 static const AVClass aribb24_class = {
     .class_name = "libaribb24 decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libaribcaption.c b/libavcodec/libaribcaption.c
index e87f303aa8..b32d87d5a6 100644
--- a/libavcodec/libaribcaption.c
+++ b/libavcodec/libaribcaption.c
@@ -1161,7 +1161,6 @@ static const AVOption options[] = {
 
 static const AVClass aribcaption_class = {
     .class_name = "aribcaption decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libcodec2.c b/libavcodec/libcodec2.c
index 83f68e85c7..950d48685e 100644
--- a/libavcodec/libcodec2.c
+++ b/libavcodec/libcodec2.c
@@ -43,7 +43,6 @@ static const AVOption options[] = {
 
 static const AVClass libcodec2_enc_class = {
     .class_name = "libcodec2 encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libdav1d.c b/libavcodec/libdav1d.c
index 11cdbca274..3a35bd1825 100644
--- a/libavcodec/libdav1d.c
+++ b/libavcodec/libdav1d.c
@@ -682,7 +682,6 @@ static const AVOption libdav1d_options[] = {
 
 static const AVClass libdav1d_class = {
     .class_name = "libdav1d decoder",
-    .item_name  = av_default_item_name,
     .option     = libdav1d_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libfdk-aacdec.c b/libavcodec/libfdk-aacdec.c
index 8c1586e25e..6b201b64ee 100644
--- a/libavcodec/libfdk-aacdec.c
+++ b/libavcodec/libfdk-aacdec.c
@@ -105,7 +105,6 @@ static const AVOption fdk_aac_dec_options[] = {
 
 static const AVClass fdk_aac_dec_class = {
     .class_name = "libfdk-aac decoder",
-    .item_name  = av_default_item_name,
     .option     = fdk_aac_dec_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libfdk-aacenc.c b/libavcodec/libfdk-aacenc.c
index d400ac2e7c..fac720b12f 100644
--- a/libavcodec/libfdk-aacenc.c
+++ b/libavcodec/libfdk-aacenc.c
@@ -86,7 +86,6 @@ static const AVOption aac_enc_options[] = {
 
 static const AVClass aac_enc_class = {
     .class_name = "libfdk_aac",
-    .item_name  = av_default_item_name,
     .option     = aac_enc_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libilbc.c b/libavcodec/libilbc.c
index 9ca90bf0c6..031f67c9bc 100644
--- a/libavcodec/libilbc.c
+++ b/libavcodec/libilbc.c
@@ -62,7 +62,6 @@ static const AVOption ilbc_dec_options[] = {
 
 static const AVClass ilbc_dec_class = {
     .class_name = "libilbc",
-    .item_name  = av_default_item_name,
     .option     = ilbc_dec_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -147,7 +146,6 @@ static const AVOption ilbc_enc_options[] = {
 
 static const AVClass ilbc_enc_class = {
     .class_name = "libilbc",
-    .item_name  = av_default_item_name,
     .option     = ilbc_enc_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libjxlenc.c b/libavcodec/libjxlenc.c
index 021e558687..0c9ce7bad1 100644
--- a/libavcodec/libjxlenc.c
+++ b/libavcodec/libjxlenc.c
@@ -471,7 +471,6 @@ static const AVOption libjxl_encode_options[] = {
 
 static const AVClass libjxl_encode_class = {
     .class_name = "libjxl",
-    .item_name  = av_default_item_name,
     .option     = libjxl_encode_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libkvazaar.c b/libavcodec/libkvazaar.c
index 0711d9ab38..8d52df142d 100644
--- a/libavcodec/libkvazaar.c
+++ b/libavcodec/libkvazaar.c
@@ -316,7 +316,6 @@ static const AVOption options[] = {
 
 static const AVClass class = {
     .class_name = "libkvazaar",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libmp3lame.c b/libavcodec/libmp3lame.c
index 312bc4230f..4ad03900e8 100644
--- a/libavcodec/libmp3lame.c
+++ b/libavcodec/libmp3lame.c
@@ -321,7 +321,6 @@ static const AVOption options[] = {
 
 static const AVClass libmp3lame_class = {
     .class_name = "libmp3lame encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libopencore-amr.c b/libavcodec/libopencore-amr.c
index 641a156129..73b623b6e7 100644
--- a/libavcodec/libopencore-amr.c
+++ b/libavcodec/libopencore-amr.c
@@ -190,7 +190,6 @@ static const AVOption options[] = {
 
 static const AVClass amrnb_class = {
     .class_name = "libopencore_amrnb",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libopenh264enc.c b/libavcodec/libopenh264enc.c
index 6f231d22b2..4d303cd9e7 100644
--- a/libavcodec/libopenh264enc.c
+++ b/libavcodec/libopenh264enc.c
@@ -90,7 +90,6 @@ static const AVOption options[] = {
 
 static const AVClass class = {
     .class_name = "libopenh264enc",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libopenjpegenc.c b/libavcodec/libopenjpegenc.c
index 009c7a4377..e9aa5b9649 100644
--- a/libavcodec/libopenjpegenc.c
+++ b/libavcodec/libopenjpegenc.c
@@ -749,7 +749,6 @@ static const AVOption options[] = {
 
 static const AVClass openjpeg_class = {
     .class_name = "libopenjpeg",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libopusdec.c b/libavcodec/libopusdec.c
index 9b9a610343..a1e47fd06c 100644
--- a/libavcodec/libopusdec.c
+++ b/libavcodec/libopusdec.c
@@ -225,7 +225,6 @@ static const AVOption libopusdec_options[] = {
 
 static const AVClass libopusdec_class = {
     .class_name = "libopusdec",
-    .item_name  = av_default_item_name,
     .option     = libopusdec_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libopusenc.c b/libavcodec/libopusenc.c
index f395d84af5..1ab954f06a 100644
--- a/libavcodec/libopusenc.c
+++ b/libavcodec/libopusenc.c
@@ -564,7 +564,6 @@ static const AVOption libopus_options[] = {
 
 static const AVClass libopus_class = {
     .class_name = "libopus",
-    .item_name  = av_default_item_name,
     .option     = libopus_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/librav1e.c b/libavcodec/librav1e.c
index 56539435a7..68bf16232a 100644
--- a/libavcodec/librav1e.c
+++ b/libavcodec/librav1e.c
@@ -667,7 +667,6 @@ const enum AVPixelFormat librav1e_pix_fmts[] = {
 
 static const AVClass class = {
     .class_name = "librav1e",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/librsvgdec.c b/libavcodec/librsvgdec.c
index c328fbc774..25d707e1a5 100644
--- a/libavcodec/librsvgdec.c
+++ b/libavcodec/librsvgdec.c
@@ -156,7 +156,6 @@ static const AVOption options[] = {
 
 static const AVClass librsvg_decoder_class = {
     .class_name = "Librsvg",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libspeexenc.c b/libavcodec/libspeexenc.c
index 9fdb247863..3180a93150 100644
--- a/libavcodec/libspeexenc.c
+++ b/libavcodec/libspeexenc.c
@@ -330,7 +330,6 @@ static const AVOption options[] = {
 
 static const AVClass speex_class = {
     .class_name = "libspeex",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libsvtav1.c b/libavcodec/libsvtav1.c
index 862192945b..0679daad37 100644
--- a/libavcodec/libsvtav1.c
+++ b/libavcodec/libsvtav1.c
@@ -671,7 +671,6 @@ static const AVOption options[] = {
 
 static const AVClass class = {
     .class_name = "libsvtav1",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libtwolame.c b/libavcodec/libtwolame.c
index 9c0156aa25..bedb2e1fed 100644
--- a/libavcodec/libtwolame.c
+++ b/libavcodec/libtwolame.c
@@ -194,7 +194,6 @@ static const AVOption options[] = {
 
 static const AVClass twolame_class = {
     .class_name = "libtwolame encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libvo-amrwbenc.c b/libavcodec/libvo-amrwbenc.c
index 02b8941a6d..a802ccdcf8 100644
--- a/libavcodec/libvo-amrwbenc.c
+++ b/libavcodec/libvo-amrwbenc.c
@@ -47,7 +47,6 @@ static const AVOption options[] = {
 
 static const AVClass amrwb_class = {
     .class_name = "libvo_amrwbenc",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libvorbisenc.c b/libavcodec/libvorbisenc.c
index 6331cf0d79..dedc43563b 100644
--- a/libavcodec/libvorbisenc.c
+++ b/libavcodec/libvorbisenc.c
@@ -67,7 +67,6 @@ static const FFCodecDefault defaults[] = {
 
 static const AVClass vorbis_class = {
     .class_name = "libvorbis",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libvpxenc.c b/libavcodec/libvpxenc.c
index 80988a2608..7ad399eb9c 100644
--- a/libavcodec/libvpxenc.c
+++ b/libavcodec/libvpxenc.c
@@ -2023,7 +2023,6 @@ static av_cold int vp8_init(AVCodecContext *avctx)
 
 static const AVClass class_vp8 = {
     .class_name = "libvpx-vp8 encoder",
-    .item_name  = av_default_item_name,
     .option     = vp8_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -2096,7 +2095,6 @@ static av_cold void vp9_init_static(FFCodec *codec)
 
 static const AVClass class_vp9 = {
     .class_name = "libvpx-vp9 encoder",
-    .item_name  = av_default_item_name,
     .option     = vp9_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libwebpenc_common.c b/libavcodec/libwebpenc_common.c
index 761219e50e..da9d41622e 100644
--- a/libavcodec/libwebpenc_common.c
+++ b/libavcodec/libwebpenc_common.c
@@ -53,7 +53,6 @@ static const AVOption options[] = {
 
 const AVClass ff_libwebpenc_class = {
     .class_name = "libwebp encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libx264.c b/libavcodec/libx264.c
index 182e20f622..5ea9540d30 100644
--- a/libavcodec/libx264.c
+++ b/libavcodec/libx264.c
@@ -1462,7 +1462,6 @@ static const FFCodecDefault x264_defaults[] = {
 #if CONFIG_LIBX264_ENCODER
 static const AVClass x264_class = {
     .class_name = "libx264",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -1504,7 +1503,6 @@ FFCodec ff_libx264_encoder = {
 #if CONFIG_LIBX264RGB_ENCODER
 static const AVClass rgbclass = {
     .class_name = "libx264rgb",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -1536,7 +1534,6 @@ const FFCodec ff_libx264rgb_encoder = {
 #if CONFIG_LIBX262_ENCODER
 static const AVClass X262_class = {
     .class_name = "libx262",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libx265.c b/libavcodec/libx265.c
index 447e6da25f..7f4552f685 100644
--- a/libavcodec/libx265.c
+++ b/libavcodec/libx265.c
@@ -873,7 +873,6 @@ static const AVOption options[] = {
 
 static const AVClass class = {
     .class_name = "libx265",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libxavs.c b/libavcodec/libxavs.c
index 6c29539f24..0e0ec32b8c 100644
--- a/libavcodec/libxavs.c
+++ b/libavcodec/libxavs.c
@@ -411,7 +411,6 @@ static const AVOption options[] = {
 
 static const AVClass xavs_class = {
     .class_name = "libxavs",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libxavs2.c b/libavcodec/libxavs2.c
index c493ddc325..bf2b08a60c 100644
--- a/libavcodec/libxavs2.c
+++ b/libavcodec/libxavs2.c
@@ -274,7 +274,6 @@ static const AVOption options[] = {
 
 static const AVClass libxavs2 = {
     .class_name = "XAVS2EContext",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libxevd.c b/libavcodec/libxevd.c
index 58ef90d929..5dec91ee23 100644
--- a/libavcodec/libxevd.c
+++ b/libavcodec/libxevd.c
@@ -517,7 +517,6 @@ static av_cold int libxevd_close(AVCodecContext *avctx)
 
 static const AVClass libxevd_class = {
     .class_name = "libxevd",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
diff --git a/libavcodec/libxeve.c b/libavcodec/libxeve.c
index c10b7de023..b71d14f1df 100644
--- a/libavcodec/libxeve.c
+++ b/libavcodec/libxeve.c
@@ -580,7 +580,6 @@ static const AVOption libxeve_options[] = {
 
 static const AVClass libxeve_class = {
     .class_name = "libxeve",
-    .item_name  = av_default_item_name,
     .option     = libxeve_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libxvid.c b/libavcodec/libxvid.c
index aba875b6b8..72577f5b6a 100644
--- a/libavcodec/libxvid.c
+++ b/libavcodec/libxvid.c
@@ -892,7 +892,6 @@ static const AVOption options[] = {
 
 static const AVClass xvid_class = {
     .class_name = "libxvid",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/libzvbi-teletextdec.c b/libavcodec/libzvbi-teletextdec.c
index 45e30eb01c..878027275f 100644
--- a/libavcodec/libzvbi-teletextdec.c
+++ b/libavcodec/libzvbi-teletextdec.c
@@ -806,7 +806,6 @@ static const AVOption options[] = {
 
 static const AVClass teletext_class = {
     .class_name = "libzvbi_teletextdec",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/ljpegenc.c b/libavcodec/ljpegenc.c
index aa62beac71..c3031631a2 100644
--- a/libavcodec/ljpegenc.c
+++ b/libavcodec/ljpegenc.c
@@ -306,7 +306,6 @@ static const AVOption options[] = {
 
 static const AVClass ljpeg_class = {
     .class_name = "ljpeg",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/magicyuvenc.c b/libavcodec/magicyuvenc.c
index ccd6a54936..a74212086b 100644
--- a/libavcodec/magicyuvenc.c
+++ b/libavcodec/magicyuvenc.c
@@ -666,7 +666,6 @@ static const AVOption options[] = {
 
 static const AVClass magicyuv_class = {
     .class_name = "magicyuv",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/mediacodec_wrapper.c b/libavcodec/mediacodec_wrapper.c
index 0880ddd3ef..f2fb392329 100644
--- a/libavcodec/mediacodec_wrapper.c
+++ b/libavcodec/mediacodec_wrapper.c
@@ -136,7 +136,6 @@ static const struct FFJniField jni_amediaformat_mapping[] = {
 
 static const AVClass amediaformat_class = {
     .class_name = "amediaformat",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
@@ -256,7 +255,6 @@ static const struct FFJniField jni_amediacodec_mapping[] = {
 
 static const AVClass amediacodec_class = {
     .class_name = "amediacodec",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
@@ -1989,13 +1987,11 @@ static const FFAMediaCodec media_codec_ndk;
 
 static const AVClass amediaformat_ndk_class = {
     .class_name = "amediaformat_ndk",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
 static const AVClass amediacodec_ndk_class = {
     .class_name = "amediacodec_ndk",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
diff --git a/libavcodec/mediacodecdec.c b/libavcodec/mediacodecdec.c
index b8587289a2..9698bd2079 100644
--- a/libavcodec/mediacodecdec.c
+++ b/libavcodec/mediacodecdec.c
@@ -558,7 +558,6 @@ static const AVOption ff_mediacodec_vdec_options[] = {
 #define DECLARE_MEDIACODEC_VCLASS(short_name)                   \
 static const AVClass ff_##short_name##_mediacodec_dec_class = { \
     .class_name = #short_name "_mediacodec",                    \
-    .item_name  = av_default_item_name,                         \
     .option     = ff_mediacodec_vdec_options,                   \
     .version    = LIBAVUTIL_VERSION_INT,                        \
 };
diff --git a/libavcodec/mediacodecenc.c b/libavcodec/mediacodecenc.c
index 7eae542248..cab0189a9f 100644
--- a/libavcodec/mediacodecenc.c
+++ b/libavcodec/mediacodecenc.c
@@ -607,7 +607,6 @@ static const AVCodecHWConfigInternal *const mediacodec_hw_configs[] = {
 #define MEDIACODEC_ENCODER_CLASS(name)              \
 static const AVClass name ## _mediacodec_class = {  \
     .class_name = #name "_mediacodec",              \
-    .item_name  = av_default_item_name,             \
     .option     = name ## _options,                 \
     .version    = LIBAVUTIL_VERSION_INT,            \
 };                                                  \
diff --git a/libavcodec/mfenc.c b/libavcodec/mfenc.c
index 3c50a6c074..8bb6f1d38d 100644
--- a/libavcodec/mfenc.c
+++ b/libavcodec/mfenc.c
@@ -1226,7 +1226,6 @@ static int mf_init(AVCodecContext *avctx)
 #define MF_ENCODER(MEDIATYPE, NAME, ID, OPTS, FMTS, CAPS) \
     static const AVClass ff_ ## NAME ## _mf_encoder_class = {                  \
         .class_name = #NAME "_mf",                                             \
-        .item_name  = av_default_item_name,                                    \
         .option     = OPTS,                                                    \
         .version    = LIBAVUTIL_VERSION_INT,                                   \
     };                                                                         \
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index 8676155ecf..d78b5453a5 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -2991,7 +2991,6 @@ static const AVOption options[] = {
 
 static const AVClass mjpegdec_class = {
     .class_name = "MJPEG decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/mjpegenc.c b/libavcodec/mjpegenc.c
index 508772987f..c3b4723391 100644
--- a/libavcodec/mjpegenc.c
+++ b/libavcodec/mjpegenc.c
@@ -637,7 +637,6 @@ FF_MPV_COMMON_OPTS
 #if CONFIG_MJPEG_ENCODER
 static const AVClass mjpeg_class = {
     .class_name = "mjpeg encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -667,7 +666,6 @@ const FFCodec ff_mjpeg_encoder = {
 #if CONFIG_AMV_ENCODER
 static const AVClass amv_class = {
     .class_name = "amv encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/mlpdec.c b/libavcodec/mlpdec.c
index ead5ecee76..5aac08504b 100644
--- a/libavcodec/mlpdec.c
+++ b/libavcodec/mlpdec.c
@@ -1444,14 +1444,12 @@ static const AVOption options[] = {
 
 static const AVClass mlp_decoder_class = {
     .class_name = "MLP decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
 static const AVClass truehd_decoder_class = {
     .class_name = "TrueHD decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/mlpenc.c b/libavcodec/mlpenc.c
index 895362faca..563f53ee34 100644
--- a/libavcodec/mlpenc.c
+++ b/libavcodec/mlpenc.c
@@ -2289,7 +2289,6 @@ static const AVOption mlp_options[] = {
 
 static const AVClass mlp_class = {
     .class_name = "mlpenc",
-    .item_name  = av_default_item_name,
     .option     = mlp_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/mmaldec.c b/libavcodec/mmaldec.c
index 2dc7bbee04..c344d1f449 100644
--- a/libavcodec/mmaldec.c
+++ b/libavcodec/mmaldec.c
@@ -825,7 +825,6 @@ static const AVOption options[]={
 
 static const AVClass ffmmal_dec_class = {
     .class_name = "mmal_dec",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/movtextdec.c b/libavcodec/movtextdec.c
index f799252bf2..b82104d164 100644
--- a/libavcodec/movtextdec.c
+++ b/libavcodec/movtextdec.c
@@ -586,7 +586,6 @@ static const AVOption options[] = {
 
 static const AVClass mov_text_decoder_class = {
     .class_name = "MOV text decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/movtextenc.c b/libavcodec/movtextenc.c
index 7aa74d7c9d..fc9ff2d7af 100644
--- a/libavcodec/movtextenc.c
+++ b/libavcodec/movtextenc.c
@@ -694,7 +694,6 @@ static const AVOption options[] = {
 
 static const AVClass mov_text_encoder_class = {
     .class_name = "MOV text enoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/mpeg12enc.c b/libavcodec/mpeg12enc.c
index 0135623c0e..01d00a8147 100644
--- a/libavcodec/mpeg12enc.c
+++ b/libavcodec/mpeg12enc.c
@@ -1225,7 +1225,6 @@ static const AVOption mpeg2_options[] = {
 #define mpeg12_class(x)                                 \
 static const AVClass mpeg ## x ## _class = {            \
     .class_name = "mpeg" # x "video encoder",           \
-    .item_name  = av_default_item_name,                 \
     .option     = mpeg ## x ## _options,                \
     .version    = LIBAVUTIL_VERSION_INT,                \
 };
diff --git a/libavcodec/mpeg2_metadata_bsf.c b/libavcodec/mpeg2_metadata_bsf.c
index 1aa6e02791..d491242338 100644
--- a/libavcodec/mpeg2_metadata_bsf.c
+++ b/libavcodec/mpeg2_metadata_bsf.c
@@ -223,7 +223,6 @@ static const AVOption mpeg2_metadata_options[] = {
 
 static const AVClass mpeg2_metadata_class = {
     .class_name = "mpeg2_metadata_bsf",
-    .item_name  = av_default_item_name,
     .option     = mpeg2_metadata_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c
index 7e05f2eeca..7485c5618b 100644
--- a/libavcodec/mpeg4videodec.c
+++ b/libavcodec/mpeg4videodec.c
@@ -3847,7 +3847,6 @@ static const AVOption mpeg4_options[] = {
 
 static const AVClass mpeg4_class = {
     .class_name = "MPEG4 Video Decoder",
-    .item_name  = av_default_item_name,
     .option     = mpeg4_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/mpeg4videoenc.c b/libavcodec/mpeg4videoenc.c
index d1e50612dd..5f5b9aebc4 100644
--- a/libavcodec/mpeg4videoenc.c
+++ b/libavcodec/mpeg4videoenc.c
@@ -1388,7 +1388,6 @@ static const AVOption options[] = {
 
 static const AVClass mpeg4enc_class = {
     .class_name = "MPEG4 encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
index fac9bb7ae7..d772a4a4cb 100644
--- a/libavcodec/mpegvideo_enc.c
+++ b/libavcodec/mpegvideo_enc.c
@@ -100,7 +100,6 @@ static const AVOption mpv_generic_options[] = {
 
 const AVClass ff_mpv_enc_class = {
     .class_name = "generic mpegvideo encoder",
-    .item_name  = av_default_item_name,
     .option     = mpv_generic_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/noise_bsf.c b/libavcodec/noise_bsf.c
index 7bdaa3c1db..3f2aaba5d9 100644
--- a/libavcodec/noise_bsf.c
+++ b/libavcodec/noise_bsf.c
@@ -220,7 +220,6 @@ static const AVOption options[] = {
 
 static const AVClass noise_class = {
     .class_name = "noise",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/nvenc_av1.c b/libavcodec/nvenc_av1.c
index 9f36796c4b..4be29b0273 100644
--- a/libavcodec/nvenc_av1.c
+++ b/libavcodec/nvenc_av1.c
@@ -167,7 +167,6 @@ static const FFCodecDefault defaults[] = {
 
 static const AVClass av1_nvenc_class = {
     .class_name = "av1_nvenc",
-    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/nvenc_h264.c b/libavcodec/nvenc_h264.c
index 85a13634a3..8cad2cca99 100644
--- a/libavcodec/nvenc_h264.c
+++ b/libavcodec/nvenc_h264.c
@@ -233,7 +233,6 @@ static const FFCodecDefault defaults[] = {
 
 static const AVClass h264_nvenc_class = {
     .class_name = "h264_nvenc",
-    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/nvenc_hevc.c b/libavcodec/nvenc_hevc.c
index 840df6da8a..388e5dd0cd 100644
--- a/libavcodec/nvenc_hevc.c
+++ b/libavcodec/nvenc_hevc.c
@@ -214,7 +214,6 @@ static const FFCodecDefault defaults[] = {
 
 static const AVClass hevc_nvenc_class = {
     .class_name = "hevc_nvenc",
-    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/omx.c b/libavcodec/omx.c
index 82fd492071..a4c873120a 100644
--- a/libavcodec/omx.c
+++ b/libavcodec/omx.c
@@ -933,7 +933,6 @@ static const enum AVPixelFormat omx_encoder_pix_fmts[] = {
 
 static const AVClass omx_mpeg4enc_class = {
     .class_name = "mpeg4_omx",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -954,7 +953,6 @@ const FFCodec ff_mpeg4_omx_encoder = {
 
 static const AVClass omx_h264enc_class = {
     .class_name = "h264_omx",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/opus_metadata_bsf.c b/libavcodec/opus_metadata_bsf.c
index 2a0f86cec3..3b243c76ce 100644
--- a/libavcodec/opus_metadata_bsf.c
+++ b/libavcodec/opus_metadata_bsf.c
@@ -49,7 +49,6 @@ static const AVOption opus_metadata_options[] = {
 
 static const AVClass opus_metadata_class = {
     .class_name = "opus_metadata_bsf",
-    .item_name  = av_default_item_name,
     .option     = opus_metadata_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/opusdec.c b/libavcodec/opusdec.c
index c5f06e0600..f9c334247d 100644
--- a/libavcodec/opusdec.c
+++ b/libavcodec/opusdec.c
@@ -762,7 +762,6 @@ static const AVOption opus_options[] = {
 
 static const AVClass opus_class = {
     .class_name = "Opus Decoder",
-    .item_name  = av_default_item_name,
     .option     = opus_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/opusenc.c b/libavcodec/opusenc.c
index a2f74a347b..2b590d2b50 100644
--- a/libavcodec/opusenc.c
+++ b/libavcodec/opusenc.c
@@ -719,7 +719,6 @@ static const AVOption opusenc_options[] = {
 
 static const AVClass opusenc_class = {
     .class_name = "Opus encoder",
-    .item_name  = av_default_item_name,
     .option     = opusenc_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/pcm_rechunk_bsf.c b/libavcodec/pcm_rechunk_bsf.c
index 28b5722ac9..d5eb6e9858 100644
--- a/libavcodec/pcm_rechunk_bsf.c
+++ b/libavcodec/pcm_rechunk_bsf.c
@@ -187,7 +187,6 @@ static const AVOption options[] = {
 
 static const AVClass pcm_rechunk_class = {
     .class_name = "pcm_rechunk_bsf",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/pgssubdec.c b/libavcodec/pgssubdec.c
index 5f76f12615..26fdc2b964 100644
--- a/libavcodec/pgssubdec.c
+++ b/libavcodec/pgssubdec.c
@@ -684,7 +684,6 @@ static const AVOption options[] = {
 
 static const AVClass pgsdec_class = {
     .class_name = "PGS subtitle decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/photocd.c b/libavcodec/photocd.c
index 07e8d460bd..64f8212e7f 100644
--- a/libavcodec/photocd.c
+++ b/libavcodec/photocd.c
@@ -454,7 +454,6 @@ static const AVOption options[] = {
 
 static const AVClass photocd_class = {
     .class_name = "photocd",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/pngenc.c b/libavcodec/pngenc.c
index f0650962d2..668d531ef6 100644
--- a/libavcodec/pngenc.c
+++ b/libavcodec/pngenc.c
@@ -1189,7 +1189,6 @@ static const AVOption options[] = {
 
 static const AVClass pngenc_class = {
     .class_name = "(A)PNG encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/prores_metadata_bsf.c b/libavcodec/prores_metadata_bsf.c
index fb001b38d7..18dac5424b 100644
--- a/libavcodec/prores_metadata_bsf.c
+++ b/libavcodec/prores_metadata_bsf.c
@@ -161,7 +161,6 @@ static const AVOption options[] = {
 
 static const AVClass prores_metadata_class = {
     .class_name = "prores_metadata_bsf",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/proresenc_anatoliy.c b/libavcodec/proresenc_anatoliy.c
index e7114f1646..a1cb46aa59 100644
--- a/libavcodec/proresenc_anatoliy.c
+++ b/libavcodec/proresenc_anatoliy.c
@@ -961,7 +961,6 @@ static const AVOption options[] = {
 
 static const AVClass prores_enc_class = {
     .class_name = "ProRes encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/proresenc_kostya.c b/libavcodec/proresenc_kostya.c
index 52fe5639b1..e904632f8e 100644
--- a/libavcodec/proresenc_kostya.c
+++ b/libavcodec/proresenc_kostya.c
@@ -1415,7 +1415,6 @@ static const AVOption options[] = {
 
 static const AVClass proresenc_class = {
     .class_name = "ProRes encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/qsvdec.c b/libavcodec/qsvdec.c
index 559f63698a..e2db8701bb 100644
--- a/libavcodec/qsvdec.c
+++ b/libavcodec/qsvdec.c
@@ -1110,7 +1110,6 @@ static void qsv_decode_flush(AVCodecContext *avctx)
 #define DEFINE_QSV_DECODER_WITH_OPTION(x, X, bsf_name, opt) \
 static const AVClass x##_qsv_class = { \
     .class_name = #x "_qsv", \
-    .item_name  = av_default_item_name, \
     .option     = opt, \
     .version    = LIBAVUTIL_VERSION_INT, \
 }; \
diff --git a/libavcodec/qsvenc_av1.c b/libavcodec/qsvenc_av1.c
index c697845d7b..92433dc2f8 100644
--- a/libavcodec/qsvenc_av1.c
+++ b/libavcodec/qsvenc_av1.c
@@ -123,7 +123,6 @@ static const AVOption options[] = {
 
 static const AVClass class = {
     .class_name = "av1_qsv encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/qsvenc_h264.c b/libavcodec/qsvenc_h264.c
index 071a9a79e9..5627ca2c25 100644
--- a/libavcodec/qsvenc_h264.c
+++ b/libavcodec/qsvenc_h264.c
@@ -172,7 +172,6 @@ static const AVOption options[] = {
 
 static const AVClass class = {
     .class_name = "h264_qsv encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/qsvenc_hevc.c b/libavcodec/qsvenc_hevc.c
index c5b7ac7cc4..b3717022b9 100644
--- a/libavcodec/qsvenc_hevc.c
+++ b/libavcodec/qsvenc_hevc.c
@@ -368,7 +368,6 @@ static const AVOption options[] = {
 
 static const AVClass class = {
     .class_name = "hevc_qsv encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/qsvenc_jpeg.c b/libavcodec/qsvenc_jpeg.c
index 2add12adc9..dc00942d4f 100644
--- a/libavcodec/qsvenc_jpeg.c
+++ b/libavcodec/qsvenc_jpeg.c
@@ -68,7 +68,6 @@ static const AVOption options[] = {
 
 static const AVClass class = {
     .class_name = "mjpeg_qsv encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/qsvenc_mpeg2.c b/libavcodec/qsvenc_mpeg2.c
index 22f1ff7c0d..bbeac53ea4 100644
--- a/libavcodec/qsvenc_mpeg2.c
+++ b/libavcodec/qsvenc_mpeg2.c
@@ -76,7 +76,6 @@ static const AVOption options[] = {
 
 static const AVClass class = {
     .class_name = "mpeg2_qsv encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/qsvenc_vp9.c b/libavcodec/qsvenc_vp9.c
index d0340ef94b..b7a596b4ce 100644
--- a/libavcodec/qsvenc_vp9.c
+++ b/libavcodec/qsvenc_vp9.c
@@ -87,7 +87,6 @@ static const AVOption options[] = {
 
 static const AVClass class = {
     .class_name = "vp9_qsv encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/rasc.c b/libavcodec/rasc.c
index 21c1829fc7..af14eee6f3 100644
--- a/libavcodec/rasc.c
+++ b/libavcodec/rasc.c
@@ -793,7 +793,6 @@ static const AVOption options[] = {
 
 static const AVClass rasc_decoder_class = {
     .class_name = "rasc decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/remove_extradata_bsf.c b/libavcodec/remove_extradata_bsf.c
index 66b7d00bd8..67a9a04060 100644
--- a/libavcodec/remove_extradata_bsf.c
+++ b/libavcodec/remove_extradata_bsf.c
@@ -240,7 +240,6 @@ static const AVOption options[] = {
 
 static const AVClass remove_extradata_class = {
     .class_name = "remove_extradata",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/roqvideoenc.c b/libavcodec/roqvideoenc.c
index 0933abf4f9..0d02d1c101 100644
--- a/libavcodec/roqvideoenc.c
+++ b/libavcodec/roqvideoenc.c
@@ -1110,7 +1110,6 @@ static const AVOption options[] = {
 
 static const AVClass roq_class = {
     .class_name = "RoQ",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/rpzaenc.c b/libavcodec/rpzaenc.c
index d84555d6c6..b13a3d8fe6 100644
--- a/libavcodec/rpzaenc.c
+++ b/libavcodec/rpzaenc.c
@@ -864,7 +864,6 @@ static const AVOption options[] = {
 
 static const AVClass rpza_class = {
     .class_name = "rpza",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/s302m.c b/libavcodec/s302m.c
index f1b41608f3..fc93c6ad05 100644
--- a/libavcodec/s302m.c
+++ b/libavcodec/s302m.c
@@ -221,7 +221,6 @@ static const AVOption s302m_options[] = {
 
 static const AVClass s302m_class = {
     .class_name = "SMPTE 302M Decoder",
-    .item_name  = av_default_item_name,
     .option     = s302m_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/sbcenc.c b/libavcodec/sbcenc.c
index 6e1dd88c72..614a6fffa8 100644
--- a/libavcodec/sbcenc.c
+++ b/libavcodec/sbcenc.c
@@ -339,7 +339,6 @@ static const AVOption options[] = {
 
 static const AVClass sbc_class = {
     .class_name = "sbc encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/setts_bsf.c b/libavcodec/setts_bsf.c
index 9c27b24a39..31f4d7afec 100644
--- a/libavcodec/setts_bsf.c
+++ b/libavcodec/setts_bsf.c
@@ -262,7 +262,6 @@ static const AVOption options[] = {
 
 static const AVClass setts_class = {
     .class_name = "setts_bsf",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/sgienc.c b/libavcodec/sgienc.c
index 5bbb72c03a..50c6555a02 100644
--- a/libavcodec/sgienc.c
+++ b/libavcodec/sgienc.c
@@ -265,7 +265,6 @@ static const AVOption options[] = {
 
 static const AVClass sgi_class = {
     .class_name = "sgi",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/snowenc.c b/libavcodec/snowenc.c
index c215215346..e4fd95390f 100644
--- a/libavcodec/snowenc.c
+++ b/libavcodec/snowenc.c
@@ -2120,7 +2120,6 @@ static const AVOption options[] = {
 
 static const AVClass snowenc_class = {
     .class_name = "snow encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/sunrastenc.c b/libavcodec/sunrastenc.c
index b2d57f7235..0c09cbd907 100644
--- a/libavcodec/sunrastenc.c
+++ b/libavcodec/sunrastenc.c
@@ -203,7 +203,6 @@ static const AVOption options[] = {
 
 static const AVClass sunrast_class = {
     .class_name = "sunrast",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/svq1enc.c b/libavcodec/svq1enc.c
index 894ae552bb..764d047799 100644
--- a/libavcodec/svq1enc.c
+++ b/libavcodec/svq1enc.c
@@ -745,7 +745,6 @@ static const AVOption options[] = {
 
 static const AVClass svq1enc_class = {
     .class_name = "svq1enc",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/targaenc.c b/libavcodec/targaenc.c
index d9c500b97d..cf5da1fc09 100644
--- a/libavcodec/targaenc.c
+++ b/libavcodec/targaenc.c
@@ -197,7 +197,6 @@ static const AVOption options[] = {
 
 static const AVClass targa_class = {
     .class_name = "targa",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/textdec.c b/libavcodec/textdec.c
index b9aebff002..852f806e45 100644
--- a/libavcodec/textdec.c
+++ b/libavcodec/textdec.c
@@ -74,7 +74,6 @@ static void text_flush(AVCodecContext *avctx)
 
 static const AVClass textsub_decoder_class = {
     .class_name = "text/vplayer/stl/pjs/subviewer1 decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index adb49e4525..3092e319d3 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -2454,7 +2454,6 @@ static const AVOption tiff_options[] = {
 
 static const AVClass tiff_decoder_class = {
     .class_name = "TIFF decoder",
-    .item_name  = av_default_item_name,
     .option     = tiff_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/tiffenc.c b/libavcodec/tiffenc.c
index 06d7dcc99d..a83657a219 100644
--- a/libavcodec/tiffenc.c
+++ b/libavcodec/tiffenc.c
@@ -564,7 +564,6 @@ static const AVOption options[] = {
 
 static const AVClass tiffenc_class = {
     .class_name = "TIFF encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/tta.c b/libavcodec/tta.c
index 7763ed7ffc..7ea9b607a9 100644
--- a/libavcodec/tta.c
+++ b/libavcodec/tta.c
@@ -420,7 +420,6 @@ static const AVOption options[] = {
 
 static const AVClass tta_decoder_class = {
     .class_name = "TTA Decoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/utvideoenc.c b/libavcodec/utvideoenc.c
index 1fcb6854f2..e9c28e5704 100644
--- a/libavcodec/utvideoenc.c
+++ b/libavcodec/utvideoenc.c
@@ -654,7 +654,6 @@ static const AVOption options[] = {
 
 static const AVClass utvideo_class = {
     .class_name = "utvideo",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/v210dec.c b/libavcodec/v210dec.c
index d80fb4e7c6..71712056db 100644
--- a/libavcodec/v210dec.c
+++ b/libavcodec/v210dec.c
@@ -227,7 +227,6 @@ static const AVOption v210dec_options[] = {
 
 static const AVClass v210dec_class = {
     .class_name = "V210 Decoder",
-    .item_name  = av_default_item_name,
     .option     = v210dec_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/v4l2_m2m_dec.c b/libavcodec/v4l2_m2m_dec.c
index aa2d759e1e..8771c821eb 100644
--- a/libavcodec/v4l2_m2m_dec.c
+++ b/libavcodec/v4l2_m2m_dec.c
@@ -233,7 +233,6 @@ static const AVOption options[] = {
 #define M2MDEC_CLASS(NAME) \
     static const AVClass v4l2_m2m_ ## NAME ## _dec_class = { \
         .class_name = #NAME "_v4l2m2m_decoder", \
-        .item_name  = av_default_item_name, \
         .option     = options, \
         .version    = LIBAVUTIL_VERSION_INT, \
     };
diff --git a/libavcodec/v4l2_m2m_enc.c b/libavcodec/v4l2_m2m_enc.c
index e08db5d5d3..2a90098eab 100644
--- a/libavcodec/v4l2_m2m_enc.c
+++ b/libavcodec/v4l2_m2m_enc.c
@@ -414,7 +414,6 @@ static const FFCodecDefault v4l2_m2m_defaults[] = {
 #define M2MENC_CLASS(NAME, OPTIONS_NAME) \
     static const AVClass v4l2_m2m_ ## NAME ## _enc_class = { \
         .class_name = #NAME "_v4l2m2m_encoder", \
-        .item_name  = av_default_item_name, \
         .option     = OPTIONS_NAME, \
         .version    = LIBAVUTIL_VERSION_INT, \
     };
diff --git a/libavcodec/vaapi_encode_av1.c b/libavcodec/vaapi_encode_av1.c
index 5a9ff0f798..a773a2cb0b 100644
--- a/libavcodec/vaapi_encode_av1.c
+++ b/libavcodec/vaapi_encode_av1.c
@@ -922,7 +922,6 @@ static const FFCodecDefault vaapi_encode_av1_defaults[] = {
 
 static const AVClass vaapi_encode_av1_class = {
     .class_name = "av1_vaapi",
-    .item_name  = av_default_item_name,
     .option     = vaapi_encode_av1_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/vaapi_encode_h264.c b/libavcodec/vaapi_encode_h264.c
index 57b5ea2bab..74fbdacf74 100644
--- a/libavcodec/vaapi_encode_h264.c
+++ b/libavcodec/vaapi_encode_h264.c
@@ -1368,7 +1368,6 @@ static const FFCodecDefault vaapi_encode_h264_defaults[] = {
 
 static const AVClass vaapi_encode_h264_class = {
     .class_name = "h264_vaapi",
-    .item_name  = av_default_item_name,
     .option     = vaapi_encode_h264_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/vaapi_encode_h265.c b/libavcodec/vaapi_encode_h265.c
index 239ef2359a..3ebb8afa9b 100644
--- a/libavcodec/vaapi_encode_h265.c
+++ b/libavcodec/vaapi_encode_h265.c
@@ -1485,7 +1485,6 @@ static const FFCodecDefault vaapi_encode_h265_defaults[] = {
 
 static const AVClass vaapi_encode_h265_class = {
     .class_name = "h265_vaapi",
-    .item_name  = av_default_item_name,
     .option     = vaapi_encode_h265_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/vaapi_encode_mjpeg.c b/libavcodec/vaapi_encode_mjpeg.c
index c17747e3a9..e67e940c47 100644
--- a/libavcodec/vaapi_encode_mjpeg.c
+++ b/libavcodec/vaapi_encode_mjpeg.c
@@ -559,7 +559,6 @@ static const FFCodecDefault vaapi_encode_mjpeg_defaults[] = {
 
 static const AVClass vaapi_encode_mjpeg_class = {
     .class_name = "mjpeg_vaapi",
-    .item_name  = av_default_item_name,
     .option     = vaapi_encode_mjpeg_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/vaapi_encode_mpeg2.c b/libavcodec/vaapi_encode_mpeg2.c
index d1904bf4f5..f9a3ecc8d1 100644
--- a/libavcodec/vaapi_encode_mpeg2.c
+++ b/libavcodec/vaapi_encode_mpeg2.c
@@ -682,7 +682,6 @@ static const FFCodecDefault vaapi_encode_mpeg2_defaults[] = {
 
 static const AVClass vaapi_encode_mpeg2_class = {
     .class_name = "mpeg2_vaapi",
-    .item_name  = av_default_item_name,
     .option     = vaapi_encode_mpeg2_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/vaapi_encode_vp8.c b/libavcodec/vaapi_encode_vp8.c
index 8a557b967e..ddcf200085 100644
--- a/libavcodec/vaapi_encode_vp8.c
+++ b/libavcodec/vaapi_encode_vp8.c
@@ -237,7 +237,6 @@ static const FFCodecDefault vaapi_encode_vp8_defaults[] = {
 
 static const AVClass vaapi_encode_vp8_class = {
     .class_name = "vp8_vaapi",
-    .item_name  = av_default_item_name,
     .option     = vaapi_encode_vp8_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/vaapi_encode_vp9.c b/libavcodec/vaapi_encode_vp9.c
index c2a8dec71b..d00e73e945 100644
--- a/libavcodec/vaapi_encode_vp9.c
+++ b/libavcodec/vaapi_encode_vp9.c
@@ -294,7 +294,6 @@ static const FFCodecDefault vaapi_encode_vp9_defaults[] = {
 
 static const AVClass vaapi_encode_vp9_class = {
     .class_name = "vp9_vaapi",
-    .item_name  = av_default_item_name,
     .option     = vaapi_encode_vp9_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/vbnenc.c b/libavcodec/vbnenc.c
index 7ce91863d7..258bb975d4 100644
--- a/libavcodec/vbnenc.c
+++ b/libavcodec/vbnenc.c
@@ -143,7 +143,6 @@ static const AVOption options[] = {
 
 static const AVClass vbnenc_class = {
     .class_name = "VBN encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/vc2enc.c b/libavcodec/vc2enc.c
index d978c67a3b..87856a95fc 100644
--- a/libavcodec/vc2enc.c
+++ b/libavcodec/vc2enc.c
@@ -1207,7 +1207,6 @@ static const AVClass vc2enc_class = {
     .class_name = "SMPTE VC-2 encoder",
     .category = AV_CLASS_CATEGORY_ENCODER,
     .option = vc2enc_options,
-    .item_name = av_default_item_name,
     .version = LIBAVUTIL_VERSION_INT
 };
 
diff --git a/libavcodec/videotoolboxenc.c b/libavcodec/videotoolboxenc.c
index fbd33fd3f9..15e0e1fe29 100644
--- a/libavcodec/videotoolboxenc.c
+++ b/libavcodec/videotoolboxenc.c
@@ -2905,7 +2905,6 @@ static const AVOption h264_options[] = {
 
 static const AVClass h264_videotoolbox_class = {
     .class_name = "h264_videotoolbox",
-    .item_name  = av_default_item_name,
     .option     = h264_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -2941,7 +2940,6 @@ static const AVOption hevc_options[] = {
 
 static const AVClass hevc_videotoolbox_class = {
     .class_name = "hevc_videotoolbox",
-    .item_name  = av_default_item_name,
     .option     = hevc_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -2980,7 +2978,6 @@ static const AVOption prores_options[] = {
 
 static const AVClass prores_videotoolbox_class = {
     .class_name = "prores_videotoolbox",
-    .item_name  = av_default_item_name,
     .option     = prores_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/vorbis_parser.c b/libavcodec/vorbis_parser.c
index d2c9e647ce..5bd862b76d 100644
--- a/libavcodec/vorbis_parser.c
+++ b/libavcodec/vorbis_parser.c
@@ -36,7 +36,6 @@
 
 static const AVClass vorbis_parser_class = {
     .class_name = "Vorbis parser",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
diff --git a/libavcodec/vp9_metadata_bsf.c b/libavcodec/vp9_metadata_bsf.c
index 40d1b21c67..024b2ad94a 100644
--- a/libavcodec/vp9_metadata_bsf.c
+++ b/libavcodec/vp9_metadata_bsf.c
@@ -126,7 +126,6 @@ static const AVOption vp9_metadata_options[] = {
 
 static const AVClass vp9_metadata_class = {
     .class_name = "vp9_metadata_bsf",
-    .item_name  = av_default_item_name,
     .option     = vp9_metadata_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavcodec/wavpackenc.c b/libavcodec/wavpackenc.c
index 33a5dfcc89..e138c7f3a6 100644
--- a/libavcodec/wavpackenc.c
+++ b/libavcodec/wavpackenc.c
@@ -2962,7 +2962,6 @@ static const AVOption options[] = {
 
 static const AVClass wavpack_encoder_class = {
     .class_name = "WavPack encoder",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavdevice/alsa_dec.c b/libavdevice/alsa_dec.c
index b518bbdac6..6b4ddef1af 100644
--- a/libavdevice/alsa_dec.c
+++ b/libavdevice/alsa_dec.c
@@ -151,7 +151,6 @@ static const AVOption options[] = {
 
 static const AVClass alsa_demuxer_class = {
     .class_name     = "ALSA indev",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
     .category       = AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT,
diff --git a/libavdevice/alsa_enc.c b/libavdevice/alsa_enc.c
index 4c7805065e..730005a8c6 100644
--- a/libavdevice/alsa_enc.c
+++ b/libavdevice/alsa_enc.c
@@ -161,7 +161,6 @@ static int audio_get_device_list(AVFormatContext *h, AVDeviceInfoList *device_li
 
 static const AVClass alsa_muxer_class = {
     .class_name     = "ALSA outdev",
-    .item_name      = av_default_item_name,
     .version        = LIBAVUTIL_VERSION_INT,
     .category       = AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT,
 };
diff --git a/libavdevice/android_camera.c b/libavdevice/android_camera.c
index c981985f10..24e4a3948e 100644
--- a/libavdevice/android_camera.c
+++ b/libavdevice/android_camera.c
@@ -854,7 +854,6 @@ static const AVOption options[] = {
 
 static const AVClass android_camera_class = {
     .class_name = "android_camera indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
diff --git a/libavdevice/audiotoolbox.m b/libavdevice/audiotoolbox.m
index 3bd707f236..9380f77114 100644
--- a/libavdevice/audiotoolbox.m
+++ b/libavdevice/audiotoolbox.m
@@ -293,7 +293,6 @@ static const AVOption options[] = {
 
 static const AVClass at_class = {
     .class_name = "AudioToolbox",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT,
diff --git a/libavdevice/avfoundation.m b/libavdevice/avfoundation.m
index a0ef87edff..6a57163eb7 100644
--- a/libavdevice/avfoundation.m
+++ b/libavdevice/avfoundation.m
@@ -1286,7 +1286,6 @@ static const AVOption options[] = {
 
 static const AVClass avf_class = {
     .class_name = "AVFoundation indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
diff --git a/libavdevice/bktr.c b/libavdevice/bktr.c
index 196637852f..29747c48bd 100644
--- a/libavdevice/bktr.c
+++ b/libavdevice/bktr.c
@@ -343,7 +343,6 @@ static const AVOption options[] = {
 
 static const AVClass bktr_class = {
     .class_name = "BKTR grab indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
diff --git a/libavdevice/caca.c b/libavdevice/caca.c
index 6af1649137..c4040b77a0 100644
--- a/libavdevice/caca.c
+++ b/libavdevice/caca.c
@@ -215,7 +215,6 @@ static const AVOption options[] = {
 
 static const AVClass caca_class = {
     .class_name = "caca outdev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT,
diff --git a/libavdevice/decklink_dec_c.c b/libavdevice/decklink_dec_c.c
index 2159702c96..b7a250dd50 100644
--- a/libavdevice/decklink_dec_c.c
+++ b/libavdevice/decklink_dec_c.c
@@ -105,7 +105,6 @@ static const AVOption options[] = {
 
 static const AVClass decklink_demuxer_class = {
     .class_name = "Blackmagic DeckLink indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
diff --git a/libavdevice/decklink_enc_c.c b/libavdevice/decklink_enc_c.c
index 25ffe77784..6d747fc66f 100644
--- a/libavdevice/decklink_enc_c.c
+++ b/libavdevice/decklink_enc_c.c
@@ -67,7 +67,6 @@ static const AVOption options[] = {
 
 static const AVClass decklink_muxer_class = {
     .class_name = "Blackmagic DeckLink outdev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT,
diff --git a/libavdevice/dshow.c b/libavdevice/dshow.c
index 5946a72cc2..544d7eb6da 100644
--- a/libavdevice/dshow.c
+++ b/libavdevice/dshow.c
@@ -1918,7 +1918,6 @@ static const AVOption options[] = {
 
 static const AVClass dshow_class = {
     .class_name = "dshow indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
diff --git a/libavdevice/fbdev_dec.c b/libavdevice/fbdev_dec.c
index 460a71d13f..c7a51bc406 100644
--- a/libavdevice/fbdev_dec.c
+++ b/libavdevice/fbdev_dec.c
@@ -226,7 +226,6 @@ static const AVOption options[] = {
 
 static const AVClass fbdev_class = {
     .class_name = "fbdev indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
diff --git a/libavdevice/fbdev_enc.c b/libavdevice/fbdev_enc.c
index 7f3e8e5935..d7a091f54b 100644
--- a/libavdevice/fbdev_enc.c
+++ b/libavdevice/fbdev_enc.c
@@ -201,7 +201,6 @@ static const AVOption options[] = {
 
 static const AVClass fbdev_class = {
     .class_name = "fbdev outdev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT,
diff --git a/libavdevice/gdigrab.c b/libavdevice/gdigrab.c
index b2858ecd89..00499e47d7 100644
--- a/libavdevice/gdigrab.c
+++ b/libavdevice/gdigrab.c
@@ -670,7 +670,6 @@ static const AVOption options[] = {
 
 static const AVClass gdigrab_class = {
     .class_name = "GDIgrab indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
diff --git a/libavdevice/iec61883.c b/libavdevice/iec61883.c
index 7223ba2e64..a3b6ab6f32 100644
--- a/libavdevice/iec61883.c
+++ b/libavdevice/iec61883.c
@@ -496,7 +496,6 @@ static const AVOption options[] = {
 
 static const AVClass iec61883_class = {
     .class_name = "iec61883 indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
diff --git a/libavdevice/jack.c b/libavdevice/jack.c
index db056d824f..94f0f15e06 100644
--- a/libavdevice/jack.c
+++ b/libavdevice/jack.c
@@ -335,7 +335,6 @@ static const AVOption options[] = {
 
 static const AVClass jack_indev_class = {
     .class_name     = "JACK indev",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
     .category       = AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT,
diff --git a/libavdevice/kmsgrab.c b/libavdevice/kmsgrab.c
index ba9b306c65..ae0dbafbfc 100644
--- a/libavdevice/kmsgrab.c
+++ b/libavdevice/kmsgrab.c
@@ -702,7 +702,6 @@ static const AVOption options[] = {
 
 static const AVClass kmsgrab_class = {
     .class_name = "kmsgrab indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
diff --git a/libavdevice/lavfi.c b/libavdevice/lavfi.c
index 2bfd0b81c7..20f15c9ceb 100644
--- a/libavdevice/lavfi.c
+++ b/libavdevice/lavfi.c
@@ -487,7 +487,6 @@ static const AVOption options[] = {
 
 static const AVClass lavfi_class = {
     .class_name = "lavfi indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_INPUT,
diff --git a/libavdevice/libcdio.c b/libavdevice/libcdio.c
index 28c339564f..5f82bdd80a 100644
--- a/libavdevice/libcdio.c
+++ b/libavdevice/libcdio.c
@@ -174,7 +174,6 @@ static const AVOption options[] = {
 
 static const AVClass libcdio_class = {
     .class_name = "libcdio indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT,
diff --git a/libavdevice/libdc1394.c b/libavdevice/libdc1394.c
index e98b88c1a2..9d5668a836 100644
--- a/libavdevice/libdc1394.c
+++ b/libavdevice/libdc1394.c
@@ -87,7 +87,6 @@ static const AVOption options[] = {
 
 static const AVClass libdc1394_class = {
     .class_name = "libdc1394 indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
diff --git a/libavdevice/openal-dec.c b/libavdevice/openal-dec.c
index 91a40ae020..2c0f333291 100644
--- a/libavdevice/openal-dec.c
+++ b/libavdevice/openal-dec.c
@@ -242,7 +242,6 @@ static const AVOption options[] = {
 
 static const AVClass class = {
     .class_name = "openal indev",
-    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
     .category = AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT,
diff --git a/libavdevice/opengl_enc.c b/libavdevice/opengl_enc.c
index b2ac6eb16a..3d54198c93 100644
--- a/libavdevice/opengl_enc.c
+++ b/libavdevice/opengl_enc.c
@@ -1291,7 +1291,6 @@ static const AVOption options[] = {
 
 static const AVClass opengl_class = {
     .class_name = "opengl outdev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT,
diff --git a/libavdevice/oss_dec.c b/libavdevice/oss_dec.c
index 2cdc4324e8..5907e2c6c7 100644
--- a/libavdevice/oss_dec.c
+++ b/libavdevice/oss_dec.c
@@ -124,7 +124,6 @@ static const AVOption options[] = {
 
 static const AVClass oss_demuxer_class = {
     .class_name     = "OSS indev",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
     .category       = AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT,
diff --git a/libavdevice/oss_enc.c b/libavdevice/oss_enc.c
index c125e6c0e9..8da069c0d5 100644
--- a/libavdevice/oss_enc.c
+++ b/libavdevice/oss_enc.c
@@ -90,7 +90,6 @@ static int audio_write_trailer(AVFormatContext *s1)
 
 static const AVClass oss_muxer_class = {
     .class_name     = "OSS outdev",
-    .item_name      = av_default_item_name,
     .version        = LIBAVUTIL_VERSION_INT,
     .category       = AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT,
 };
diff --git a/libavdevice/pulse_audio_dec.c b/libavdevice/pulse_audio_dec.c
index 2545462939..b9d4662250 100644
--- a/libavdevice/pulse_audio_dec.c
+++ b/libavdevice/pulse_audio_dec.c
@@ -387,7 +387,6 @@ static const AVOption options[] = {
 
 static const AVClass pulse_demuxer_class = {
     .class_name     = "Pulse indev",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
     .category       = AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT,
diff --git a/libavdevice/pulse_audio_enc.c b/libavdevice/pulse_audio_enc.c
index f051df3e72..9aff25b6dc 100644
--- a/libavdevice/pulse_audio_enc.c
+++ b/libavdevice/pulse_audio_enc.c
@@ -783,7 +783,6 @@ static const AVOption options[] = {
 
 static const AVClass pulse_muxer_class = {
     .class_name     = "PulseAudio outdev",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
     .category       = AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT,
diff --git a/libavdevice/sdl2.c b/libavdevice/sdl2.c
index 342a253dc0..0091a23e19 100644
--- a/libavdevice/sdl2.c
+++ b/libavdevice/sdl2.c
@@ -350,7 +350,6 @@ static const AVOption options[] = {
 
 static const AVClass sdl2_class = {
     .class_name = "sdl2 outdev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT,
diff --git a/libavdevice/sndio_dec.c b/libavdevice/sndio_dec.c
index 6059830367..fdc30a9619 100644
--- a/libavdevice/sndio_dec.c
+++ b/libavdevice/sndio_dec.c
@@ -103,7 +103,6 @@ static const AVOption options[] = {
 
 static const AVClass sndio_demuxer_class = {
     .class_name     = "sndio indev",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
     .category       = AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT,
diff --git a/libavdevice/sndio_enc.c b/libavdevice/sndio_enc.c
index 578e287a41..fa45ea9b4e 100644
--- a/libavdevice/sndio_enc.c
+++ b/libavdevice/sndio_enc.c
@@ -82,7 +82,6 @@ static int audio_write_trailer(AVFormatContext *s1)
 
 static const AVClass sndio_muxer_class = {
     .class_name     = "sndio outdev",
-    .item_name      = av_default_item_name,
     .version        = LIBAVUTIL_VERSION_INT,
     .category       = AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT,
 };
diff --git a/libavdevice/v4l2.c b/libavdevice/v4l2.c
index 5e85d1a2b3..b7c223a56f 100644
--- a/libavdevice/v4l2.c
+++ b/libavdevice/v4l2.c
@@ -1128,7 +1128,6 @@ static const AVOption options[] = {
 
 static const AVClass v4l2_class = {
     .class_name = "V4L2 indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
diff --git a/libavdevice/v4l2enc.c b/libavdevice/v4l2enc.c
index 8e8f911996..68e303fabf 100644
--- a/libavdevice/v4l2enc.c
+++ b/libavdevice/v4l2enc.c
@@ -107,7 +107,6 @@ static int write_trailer(AVFormatContext *s1)
 
 static const AVClass v4l2_class = {
     .class_name = "V4L2 outdev",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT,
 };
diff --git a/libavdevice/vfwcap.c b/libavdevice/vfwcap.c
index 86a40b4af4..7bb3b59830 100644
--- a/libavdevice/vfwcap.c
+++ b/libavdevice/vfwcap.c
@@ -476,7 +476,6 @@ static const AVOption options[] = {
 
 static const AVClass vfw_class = {
     .class_name = "VFW indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT
diff --git a/libavdevice/xcbgrab.c b/libavdevice/xcbgrab.c
index 64a68ba497..03f5b4e4d8 100644
--- a/libavdevice/xcbgrab.c
+++ b/libavdevice/xcbgrab.c
@@ -102,7 +102,6 @@ static const AVOption options[] = {
 
 static const AVClass xcbgrab_class = {
     .class_name = "xcbgrab indev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
diff --git a/libavdevice/xv.c b/libavdevice/xv.c
index cba933ef17..5ad77e2adc 100644
--- a/libavdevice/xv.c
+++ b/libavdevice/xv.c
@@ -371,7 +371,6 @@ static const AVOption options[] = {
 
 static const AVClass xv_class = {
     .class_name = "xvideo outdev",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT,
diff --git a/libavfilter/af_aresample.c b/libavfilter/af_aresample.c
index f4bcc45616..d741a174a0 100644
--- a/libavfilter/af_aresample.c
+++ b/libavfilter/af_aresample.c
@@ -351,7 +351,6 @@ static const AVOption options[] = {
 
 static const AVClass aresample_class = {
     .class_name       = "aresample",
-    .item_name        = av_default_item_name,
     .option           = options,
     .version          = LIBAVUTIL_VERSION_INT,
     .child_class_iterate = resample_child_class_iterate,
diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c
index 68daa93e61..9e9464c034 100644
--- a/libavfilter/avfiltergraph.c
+++ b/libavfilter/avfiltergraph.c
@@ -60,7 +60,6 @@ static const AVOption filtergraph_options[] = {
 
 static const AVClass filtergraph_class = {
     .class_name = "AVFilterGraph",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
     .option     = filtergraph_options,
     .category   = AV_CLASS_CATEGORY_FILTER,
diff --git a/libavfilter/framesync.h b/libavfilter/framesync.h
index 233f50a0eb..9e12758138 100644
--- a/libavfilter/framesync.h
+++ b/libavfilter/framesync.h
@@ -320,7 +320,6 @@ const AVClass *ff_framesync_child_class_iterate(void **iter);
 #define FRAMESYNC_DEFINE_PURE_CLASS(name, desc, func_prefix, options) \
 static const AVClass name##_class = {                                 \
     .class_name          = desc,                                      \
-    .item_name           = av_default_item_name,                      \
     .option              = options,                                   \
     .version             = LIBAVUTIL_VERSION_INT,                     \
     .category            = AV_CLASS_CATEGORY_FILTER,                  \
diff --git a/libavfilter/internal.h b/libavfilter/internal.h
index 2dbc5def0a..4e36df6189 100644
--- a/libavfilter/internal.h
+++ b/libavfilter/internal.h
@@ -311,7 +311,6 @@ int ff_request_frame(AVFilterLink *link);
 #define AVFILTER_DEFINE_CLASS_EXT(name, desc, options) \
     static const AVClass name##_class = {       \
         .class_name = desc,                     \
-        .item_name  = av_default_item_name,     \
         .option     = options,                  \
         .version    = LIBAVUTIL_VERSION_INT,    \
         .category   = AV_CLASS_CATEGORY_FILTER, \
diff --git a/libavfilter/stack_internal.c b/libavfilter/stack_internal.c
index 1ee20d66cf..cf1edf222e 100644
--- a/libavfilter/stack_internal.c
+++ b/libavfilter/stack_internal.c
@@ -336,7 +336,6 @@ static const AVFilterPad stack_outputs[] = {
 #define DEFINE_STACK_FILTER(category, api, capi, filter_flags)          \
     static const AVClass category##_##api##_class = {                   \
         .class_name = #category "_" #api,                               \
-        .item_name  = av_default_item_name,                             \
         .option     = category##_##api##_options,                       \
         .version    = LIBAVUTIL_VERSION_INT,                            \
     };                                                                  \
diff --git a/libavfilter/vf_bilateral_cuda.c b/libavfilter/vf_bilateral_cuda.c
index ba008b517a..57a7364649 100644
--- a/libavfilter/vf_bilateral_cuda.c
+++ b/libavfilter/vf_bilateral_cuda.c
@@ -435,7 +435,6 @@ static const AVOption options[] = {
 
 static const AVClass cuda_bilateral_class = {
     .class_name = "cudabilateral",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavfilter/vf_bwdif_cuda.c b/libavfilter/vf_bwdif_cuda.c
index 418f15f989..9ea7a67018 100644
--- a/libavfilter/vf_bwdif_cuda.c
+++ b/libavfilter/vf_bwdif_cuda.c
@@ -338,7 +338,6 @@ exit:
 
 static const AVClass bwdif_cuda_class = {
     .class_name = "bwdif_cuda",
-    .item_name  = av_default_item_name,
     .option     = ff_yadif_options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_FILTER,
diff --git a/libavfilter/vf_bwdif_vulkan.c b/libavfilter/vf_bwdif_vulkan.c
index c51df9aa26..15af354e99 100644
--- a/libavfilter/vf_bwdif_vulkan.c
+++ b/libavfilter/vf_bwdif_vulkan.c
@@ -375,7 +375,6 @@ static int bwdif_vulkan_config_output(AVFilterLink *outlink)
 
 static const AVClass bwdif_vulkan_class = {
     .class_name = "bwdif_vulkan",
-    .item_name  = av_default_item_name,
     .option     = ff_yadif_options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_FILTER,
diff --git a/libavfilter/vf_chromakey_cuda.c b/libavfilter/vf_chromakey_cuda.c
index ac644caea7..dbe1ce0f90 100644
--- a/libavfilter/vf_chromakey_cuda.c
+++ b/libavfilter/vf_chromakey_cuda.c
@@ -454,7 +454,6 @@ static const AVOption options[] = {
 
 static const AVClass cudachromakey_class = {
     .class_name = "cudachromakey",
-    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavfilter/vf_colorspace_cuda.c b/libavfilter/vf_colorspace_cuda.c
index 09fd4dd778..2f23f91d7f 100644
--- a/libavfilter/vf_colorspace_cuda.c
+++ b/libavfilter/vf_colorspace_cuda.c
@@ -392,7 +392,6 @@ static const AVOption options[] = {
 
 static const AVClass cudacolorspace_class = {
     .class_name = "colorspace_cuda",
-    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavfilter/vf_deinterlace_vaapi.c b/libavfilter/vf_deinterlace_vaapi.c
index f085a7c10a..83662729be 100644
--- a/libavfilter/vf_deinterlace_vaapi.c
+++ b/libavfilter/vf_deinterlace_vaapi.c
@@ -392,7 +392,6 @@ static const AVOption deint_vaapi_options[] = {
 
 static const AVClass deint_vaapi_class = {
     .class_name = "deinterlace_vaapi",
-    .item_name  = av_default_item_name,
     .option     = deint_vaapi_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavfilter/vf_hwdownload.c b/libavfilter/vf_hwdownload.c
index 5ef23cb5d4..d43f03e26b 100644
--- a/libavfilter/vf_hwdownload.c
+++ b/libavfilter/vf_hwdownload.c
@@ -167,7 +167,6 @@ static av_cold void hwdownload_uninit(AVFilterContext *avctx)
 
 static const AVClass hwdownload_class = {
     .class_name = "hwdownload",
-    .item_name  = av_default_item_name,
     .option     = NULL,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavfilter/vf_scale.c b/libavfilter/vf_scale.c
index b45035907b..b51ae9a26a 100644
--- a/libavfilter/vf_scale.c
+++ b/libavfilter/vf_scale.c
@@ -1022,7 +1022,6 @@ static const AVOption scale_options[] = {
 
 static const AVClass scale_class = {
     .class_name       = "scale(2ref)",
-    .item_name        = av_default_item_name,
     .option           = scale_options,
     .version          = LIBAVUTIL_VERSION_INT,
     .category         = AV_CLASS_CATEGORY_FILTER,
diff --git a/libavfilter/vf_scale_cuda.c b/libavfilter/vf_scale_cuda.c
index 4cd21bbf25..2afb165de3 100644
--- a/libavfilter/vf_scale_cuda.c
+++ b/libavfilter/vf_scale_cuda.c
@@ -603,7 +603,6 @@ static const AVOption options[] = {
 
 static const AVClass cudascale_class = {
     .class_name = "cudascale",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavfilter/vf_scale_npp.c b/libavfilter/vf_scale_npp.c
index 3cfead82bf..f9b6addd0c 100644
--- a/libavfilter/vf_scale_npp.c
+++ b/libavfilter/vf_scale_npp.c
@@ -1013,7 +1013,6 @@ static const AVOption options[] = {
 
 static const AVClass nppscale_class = {
     .class_name = "nppscale",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_FILTER,
diff --git a/libavfilter/vf_sharpen_npp.c b/libavfilter/vf_sharpen_npp.c
index 0a2c5c458b..da4d2b1b30 100644
--- a/libavfilter/vf_sharpen_npp.c
+++ b/libavfilter/vf_sharpen_npp.c
@@ -235,7 +235,6 @@ static const AVOption options[] = {
 
 static const AVClass nppsharpen_class = {
     .class_name = "nppsharpen",
-    .item_name = av_default_item_name,
     .option = options,
     .version = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavfilter/vf_spp.c b/libavfilter/vf_spp.c
index bb74b20e0e..eca429e03a 100644
--- a/libavfilter/vf_spp.c
+++ b/libavfilter/vf_spp.c
@@ -75,7 +75,6 @@ static const AVOption spp_options[] = {
 
 static const AVClass spp_class = {
     .class_name       = "spp",
-    .item_name        = av_default_item_name,
     .option           = spp_options,
     .version          = LIBAVUTIL_VERSION_INT,
     .category         = AV_CLASS_CATEGORY_FILTER,
diff --git a/libavfilter/vf_transpose_npp.c b/libavfilter/vf_transpose_npp.c
index a7a779cc25..6e22b1fc92 100644
--- a/libavfilter/vf_transpose_npp.c
+++ b/libavfilter/vf_transpose_npp.c
@@ -440,7 +440,6 @@ static const AVOption options[] = {
 
 static const AVClass npptranspose_class = {
     .class_name = "npptranspose",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavfilter/vf_vpp_qsv.c b/libavfilter/vf_vpp_qsv.c
index 5356103e00..fdf9910186 100644
--- a/libavfilter/vf_vpp_qsv.c
+++ b/libavfilter/vf_vpp_qsv.c
@@ -824,7 +824,6 @@ static const AVFilterPad vpp_outputs[] = {
 #define DEFINE_QSV_FILTER(x, sn, ln, fmts) \
 static const AVClass x##_class = { \
     .class_name = #sn "_qsv", \
-    .item_name  = av_default_item_name, \
     .option     = x##_options, \
     .version    = LIBAVUTIL_VERSION_INT, \
 }; \
diff --git a/libavfilter/vf_yadif.c b/libavfilter/vf_yadif.c
index a5a856bf5f..863a1d6ffb 100644
--- a/libavfilter/vf_yadif.c
+++ b/libavfilter/vf_yadif.c
@@ -326,7 +326,6 @@ static int config_output(AVFilterLink *outlink)
 
 static const AVClass yadif_class = {
     .class_name = "yadif",
-    .item_name  = av_default_item_name,
     .option     = ff_yadif_options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_FILTER,
diff --git a/libavfilter/vf_yadif_cuda.c b/libavfilter/vf_yadif_cuda.c
index d777757e65..44a284788d 100644
--- a/libavfilter/vf_yadif_cuda.c
+++ b/libavfilter/vf_yadif_cuda.c
@@ -338,7 +338,6 @@ exit:
 
 static const AVClass yadif_cuda_class = {
     .class_name = "yadif_cuda",
-    .item_name  = av_default_item_name,
     .option     = ff_yadif_options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_FILTER,
diff --git a/libavfilter/vidstabutils.c b/libavfilter/vidstabutils.c
index 56fbdbdb87..47590dd733 100644
--- a/libavfilter/vidstabutils.c
+++ b/libavfilter/vidstabutils.c
@@ -61,7 +61,6 @@ static int vs2av_log(int type, const char *tag, const char *format, ...)
     VS2AVLogCtx ctx;
     AVClass class = {
         .class_name = tag,
-        .item_name  = av_default_item_name,
         .option     = 0,
         .version    = LIBAVUTIL_VERSION_INT,
         .category   = AV_CLASS_CATEGORY_FILTER,
diff --git a/libavformat/aadec.c b/libavformat/aadec.c
index e7b048b1f9..840afe0f1f 100644
--- a/libavformat/aadec.c
+++ b/libavformat/aadec.c
@@ -366,7 +366,6 @@ static const AVOption aa_options[] = {
 
 static const AVClass aa_class = {
     .class_name = "aa",
-    .item_name  = av_default_item_name,
     .option     = aa_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/ac4enc.c b/libavformat/ac4enc.c
index aefbfc2684..df768892dc 100644
--- a/libavformat/ac4enc.c
+++ b/libavformat/ac4enc.c
@@ -82,7 +82,6 @@ static const AVOption ac4_options[] = {
 
 static const AVClass ac4_muxer_class = {
     .class_name     = "AC4 muxer",
-    .item_name      = av_default_item_name,
     .option         = ac4_options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/adtsenc.c b/libavformat/adtsenc.c
index c5765cc92e..5ebbc641d2 100644
--- a/libavformat/adtsenc.c
+++ b/libavformat/adtsenc.c
@@ -228,7 +228,6 @@ static const AVOption options[] = {
 
 static const AVClass adts_muxer_class = {
     .class_name     = "ADTS muxer",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/aiffenc.c b/libavformat/aiffenc.c
index 11a5b18d57..12c871dd93 100644
--- a/libavformat/aiffenc.c
+++ b/libavformat/aiffenc.c
@@ -280,7 +280,6 @@ static const AVOption options[] = {
 
 static const AVClass aiff_muxer_class = {
     .class_name     = "AIFF muxer",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/alp.c b/libavformat/alp.c
index 8c6066a59c..bbba769f7b 100644
--- a/libavformat/alp.c
+++ b/libavformat/alp.c
@@ -286,7 +286,6 @@ static const AVOption alp_options[] = {
 
 static const AVClass alp_muxer_class = {
     .class_name = "alp",
-    .item_name  = av_default_item_name,
     .option     = alp_options,
     .version    = LIBAVUTIL_VERSION_INT
 };
diff --git a/libavformat/apngdec.c b/libavformat/apngdec.c
index 8f5f37a2b1..835a94e9e1 100644
--- a/libavformat/apngdec.c
+++ b/libavformat/apngdec.c
@@ -415,7 +415,6 @@ static const AVOption options[] = {
 
 static const AVClass demuxer_class = {
     .class_name = "APNG demuxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEMUXER,
diff --git a/libavformat/apngenc.c b/libavformat/apngenc.c
index a0af916f14..be08c033ed 100644
--- a/libavformat/apngenc.c
+++ b/libavformat/apngenc.c
@@ -302,7 +302,6 @@ static const AVOption options[] = {
 
 static const AVClass apng_muxer_class = {
     .class_name = "APNG muxer",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
     .option     = options,
 };
diff --git a/libavformat/aptxdec.c b/libavformat/aptxdec.c
index 0637a8afde..e1043564af 100644
--- a/libavformat/aptxdec.c
+++ b/libavformat/aptxdec.c
@@ -95,7 +95,6 @@ static const AVOption aptx_options[] = {
 
 static const AVClass aptx_demuxer_class = {
     .class_name = "aptx (hd) demuxer",
-    .item_name  = av_default_item_name,
     .option     = aptx_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/aqtitledec.c b/libavformat/aqtitledec.c
index 6c14b23862..bb977150b8 100644
--- a/libavformat/aqtitledec.c
+++ b/libavformat/aqtitledec.c
@@ -130,7 +130,6 @@ static const AVOption aqt_options[] = {
 
 static const AVClass aqt_class = {
     .class_name = "aqtdec",
-    .item_name  = av_default_item_name,
     .option     = aqt_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/argo_asf.c b/libavformat/argo_asf.c
index 5f38b68b6a..61951c21d9 100644
--- a/libavformat/argo_asf.c
+++ b/libavformat/argo_asf.c
@@ -466,7 +466,6 @@ static const AVOption argo_asf_options[] = {
 
 static const AVClass argo_asf_muxer_class = {
     .class_name = "argo_asf_muxer",
-    .item_name  = av_default_item_name,
     .option     = argo_asf_options,
     .version    = LIBAVUTIL_VERSION_INT
 };
diff --git a/libavformat/argo_cvg.c b/libavformat/argo_cvg.c
index 2c74200b7d..153f746b3d 100644
--- a/libavformat/argo_cvg.c
+++ b/libavformat/argo_cvg.c
@@ -396,7 +396,6 @@ static const AVOption argo_cvg_options[] = {
 
 static const AVClass argo_cvg_muxer_class = {
     .class_name = "argo_cvg_muxer",
-    .item_name  = av_default_item_name,
     .option     = argo_cvg_options,
     .version    = LIBAVUTIL_VERSION_INT
 };
diff --git a/libavformat/asfdec_f.c b/libavformat/asfdec_f.c
index a579c3e894..1c97d8b5b9 100644
--- a/libavformat/asfdec_f.c
+++ b/libavformat/asfdec_f.c
@@ -125,7 +125,6 @@ static const AVOption options[] = {
 
 static const AVClass asf_class = {
     .class_name = "asf demuxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/asfenc.c b/libavformat/asfenc.c
index 2f2d9b1bab..4cb59317a1 100644
--- a/libavformat/asfenc.c
+++ b/libavformat/asfenc.c
@@ -1121,7 +1121,6 @@ static const AVOption asf_options[] = {
 
 static const AVClass asf_muxer_class = {
     .class_name     = "ASF (stream) muxer",
-    .item_name      = av_default_item_name,
     .option         = asf_options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/assenc.c b/libavformat/assenc.c
index 62ea0745a4..60112b88bc 100644
--- a/libavformat/assenc.c
+++ b/libavformat/assenc.c
@@ -223,7 +223,6 @@ static const AVOption options[] = {
 
 static const AVClass ass_class = {
     .class_name = "ass muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/astenc.c b/libavformat/astenc.c
index 9dd388040f..259948b276 100644
--- a/libavformat/astenc.c
+++ b/libavformat/astenc.c
@@ -190,7 +190,6 @@ static const AVOption options[] = {
 
 static const AVClass ast_muxer_class = {
     .class_name = "AST muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/async.c b/libavformat/async.c
index e096b0bc6f..283f50cf4b 100644
--- a/libavformat/async.c
+++ b/libavformat/async.c
@@ -484,7 +484,6 @@ static const AVOption options[] = {
 
 static const AVClass async_context_class = {
     .class_name = "Async",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -586,7 +585,6 @@ static const AVOption async_test_options[] = {
 
 static const AVClass async_test_context_class = {
     .class_name = "Async-Test",
-    .item_name  = av_default_item_name,
     .option     = async_test_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/av1dec.c b/libavformat/av1dec.c
index 8a06445958..8b74fa1af8 100644
--- a/libavformat/av1dec.c
+++ b/libavformat/av1dec.c
@@ -116,7 +116,6 @@ static const AVOption av1_options[] = {
 
 static const AVClass av1_demuxer_class = {
     .class_name = "AV1 Annex B/low overhead OBU demuxer",
-    .item_name  = av_default_item_name,
     .option     = av1_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index 00bd7a98a9..744ae64ff3 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -97,7 +97,6 @@ static const AVOption options[] = {
 
 static const AVClass demuxer_class = {
     .class_name = "avi",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEMUXER,
diff --git a/libavformat/avienc.c b/libavformat/avienc.c
index a61e5c3109..b44ddfe0aa 100644
--- a/libavformat/avienc.c
+++ b/libavformat/avienc.c
@@ -999,7 +999,6 @@ static const AVOption options[] = {
 
 static const AVClass avi_muxer_class = {
     .class_name = "AVI muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 5a329ce465..0265035087 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -66,7 +66,6 @@ static const AVOption ff_avio_options[] = {
 
 const AVClass ff_avio_class = {
     .class_name = "AVIOContext",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
     .option     = ff_avio_options,
     .child_next = ff_avio_child_next,
diff --git a/libavformat/avisynth.c b/libavformat/avisynth.c
index 027e8c63f6..ba8ffde426 100644
--- a/libavformat/avisynth.c
+++ b/libavformat/avisynth.c
@@ -1192,7 +1192,6 @@ static const AVOption avisynth_options[] = {
 
 static const AVClass avisynth_demuxer_class = {
     .class_name = "AviSynth demuxer",
-    .item_name  = av_default_item_name,
     .option     = avisynth_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/bintext.c b/libavformat/bintext.c
index b6f14a03e5..860e2bf784 100644
--- a/libavformat/bintext.c
+++ b/libavformat/bintext.c
@@ -382,7 +382,6 @@ static const AVOption options[] = {
 #define CLASS(name) \
 (const AVClass[1]){{ \
     .class_name     = name, \
-    .item_name      = av_default_item_name, \
     .option         = options, \
     .version        = LIBAVUTIL_VERSION_INT, \
 }}
diff --git a/libavformat/bluray.c b/libavformat/bluray.c
index 1845551c34..34ea05d603 100644
--- a/libavformat/bluray.c
+++ b/libavformat/bluray.c
@@ -51,7 +51,6 @@ static const AVOption options[] = {
 
 static const AVClass bluray_context_class = {
     .class_name     = "bluray",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/cache.c b/libavformat/cache.c
index 115c2c2490..aba6230057 100644
--- a/libavformat/cache.c
+++ b/libavformat/cache.c
@@ -327,7 +327,6 @@ static const AVOption options[] = {
 
 static const AVClass cache_context_class = {
     .class_name = "cache",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/cdxl.c b/libavformat/cdxl.c
index 065148360e..a7f5288faa 100644
--- a/libavformat/cdxl.c
+++ b/libavformat/cdxl.c
@@ -252,7 +252,6 @@ static const AVOption cdxl_options[] = {
 
 static const AVClass cdxl_demuxer_class = {
     .class_name = "CDXL demuxer",
-    .item_name  = av_default_item_name,
     .option     = cdxl_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/chromaprint.c b/libavformat/chromaprint.c
index 9e5fd780c1..4b09b6f14f 100644
--- a/libavformat/chromaprint.c
+++ b/libavformat/chromaprint.c
@@ -172,7 +172,6 @@ static const AVOption options[] = {
 
 static const AVClass chromaprint_class = {
     .class_name = "chromaprint muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/codec2.c b/libavformat/codec2.c
index f0f7b89253..1d6ef2a14a 100644
--- a/libavformat/codec2.c
+++ b/libavformat/codec2.c
@@ -279,7 +279,6 @@ static const AVOption codec2raw_options[] = {
 
 static const AVClass codec2_demux_class = {
     .class_name = "codec2 demuxer",
-    .item_name  = av_default_item_name,
     .option     = codec2_options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEMUXER,
@@ -287,7 +286,6 @@ static const AVClass codec2_demux_class = {
 
 static const AVClass codec2raw_demux_class = {
     .class_name = "codec2raw demuxer",
-    .item_name  = av_default_item_name,
     .option     = codec2raw_options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEMUXER,
diff --git a/libavformat/concatdec.c b/libavformat/concatdec.c
index ffa8ade25b..5a7a063ef7 100644
--- a/libavformat/concatdec.c
+++ b/libavformat/concatdec.c
@@ -930,7 +930,6 @@ static const AVOption options[] = {
 
 static const AVClass concat_class = {
     .class_name = "concat demuxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/crypto.c b/libavformat/crypto.c
index 75b00020bc..d0eb7fbe5d 100644
--- a/libavformat/crypto.c
+++ b/libavformat/crypto.c
@@ -73,7 +73,6 @@ static const AVOption options[] = {
 
 static const AVClass crypto_class = {
     .class_name     = "crypto",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/dashdec.c b/libavformat/dashdec.c
index 1215407f3c..a60abe05ce 100644
--- a/libavformat/dashdec.c
+++ b/libavformat/dashdec.c
@@ -2350,7 +2350,6 @@ static const AVOption dash_options[] = {
 
 static const AVClass dash_class = {
     .class_name = "dash",
-    .item_name  = av_default_item_name,
     .option     = dash_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/dashenc.c b/libavformat/dashenc.c
index 2f5394c308..5ca1661119 100644
--- a/libavformat/dashenc.c
+++ b/libavformat/dashenc.c
@@ -2411,7 +2411,6 @@ static const AVOption options[] = {
 
 static const AVClass dash_class = {
     .class_name = "dash muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/dfpwmdec.c b/libavformat/dfpwmdec.c
index b92b00f13a..a92649ddfe 100644
--- a/libavformat/dfpwmdec.c
+++ b/libavformat/dfpwmdec.c
@@ -81,7 +81,6 @@ static const AVOption dfpwm_options[] = {
 };
 static const AVClass dfpwm_demuxer_class = {
     .class_name = "dfpwm demuxer",
-    .item_name  = av_default_item_name,
     .option     = dfpwm_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/electronicarts.c b/libavformat/electronicarts.c
index e7f574aede..1d0c119c73 100644
--- a/libavformat/electronicarts.c
+++ b/libavformat/electronicarts.c
@@ -778,7 +778,6 @@ static const AVOption options[] = {
 
 static const AVClass ea_class = {
     .class_name = "ea demuxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/evcdec.c b/libavformat/evcdec.c
index 5ace604db6..2dad6c2f7a 100644
--- a/libavformat/evcdec.c
+++ b/libavformat/evcdec.c
@@ -51,7 +51,6 @@ static const AVOption evc_options[] = {
 
 static const AVClass evc_demuxer_class = {
     .class_name = "EVC Annex B demuxer",
-    .item_name  = av_default_item_name,
     .option     = evc_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/fifo.c b/libavformat/fifo.c
index 8fb4975a5c..9d9796fd32 100644
--- a/libavformat/fifo.c
+++ b/libavformat/fifo.c
@@ -706,7 +706,6 @@ static const AVOption options[] = {
 
 static const AVClass fifo_muxer_class = {
     .class_name = "Fifo muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/fifo_test.c b/libavformat/fifo_test.c
index 3861c4aee4..d4f6800c5d 100644
--- a/libavformat/fifo_test.c
+++ b/libavformat/fifo_test.c
@@ -133,7 +133,6 @@ static const AVOption options[] = {
 
 static const AVClass failing_muxer_class = {
     .class_name = "Fifo test muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/file.c b/libavformat/file.c
index 64df7ff6fb..712382c42d 100644
--- a/libavformat/file.c
+++ b/libavformat/file.c
@@ -117,21 +117,18 @@ static const AVOption pipe_options[] = {
 
 static const AVClass file_class = {
     .class_name = "file",
-    .item_name  = av_default_item_name,
     .option     = file_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
 static const AVClass pipe_class = {
     .class_name = "pipe",
-    .item_name  = av_default_item_name,
     .option     = pipe_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
 static const AVClass fd_class = {
     .class_name = "fd",
-    .item_name  = av_default_item_name,
     .option     = pipe_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/fitsdec.c b/libavformat/fitsdec.c
index e0f502e4e3..e6a7dadbe5 100644
--- a/libavformat/fitsdec.c
+++ b/libavformat/fitsdec.c
@@ -214,7 +214,6 @@ static const AVOption fits_options[] = {
 
 static const AVClass fits_demuxer_class = {
     .class_name = "FITS demuxer",
-    .item_name  = av_default_item_name,
     .option     = fits_options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEMUXER,
diff --git a/libavformat/flacenc.c b/libavformat/flacenc.c
index a8beec7750..e4fd87930e 100644
--- a/libavformat/flacenc.c
+++ b/libavformat/flacenc.c
@@ -409,7 +409,6 @@ static const AVOption flacenc_options[] = {
 
 static const AVClass flac_muxer_class = {
     .class_name = "flac muxer",
-    .item_name  = av_default_item_name,
     .option     = flacenc_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/flvdec.c b/libavformat/flvdec.c
index e25b5bd163..639a9f84d9 100644
--- a/libavformat/flvdec.c
+++ b/libavformat/flvdec.c
@@ -1407,7 +1407,6 @@ static const AVOption options[] = {
 
 static const AVClass flv_kux_class = {
     .class_name = "(live) flv/kux demuxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/flvenc.c b/libavformat/flvenc.c
index 874560fac1..289489ebb1 100644
--- a/libavformat/flvenc.c
+++ b/libavformat/flvenc.c
@@ -1105,7 +1105,6 @@ static const AVOption options[] = {
 
 static const AVClass flv_muxer_class = {
     .class_name = "flv muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/ftp.c b/libavformat/ftp.c
index f9b069a59e..23dd5da3f7 100644
--- a/libavformat/ftp.c
+++ b/libavformat/ftp.c
@@ -92,7 +92,6 @@ static const AVOption options[] = {
 
 static const AVClass ftp_context_class = {
     .class_name     = "ftp",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/g726.c b/libavformat/g726.c
index 97580a74f8..016ab70dda 100644
--- a/libavformat/g726.c
+++ b/libavformat/g726.c
@@ -69,7 +69,6 @@ static const AVOption options[] = {
 
 static const AVClass g726_demuxer_class = {
     .class_name     = "G.726 demuxer",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/g729dec.c b/libavformat/g729dec.c
index 9c92ea4fcf..e6ecb5297a 100644
--- a/libavformat/g729dec.c
+++ b/libavformat/g729dec.c
@@ -88,7 +88,6 @@ static const AVOption g729_options[] = {
 
 static const AVClass g729_demuxer_class = {
     .class_name = "g729 demuxer",
-    .item_name  = av_default_item_name,
     .option     = g729_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/gif.c b/libavformat/gif.c
index 568867cc5d..23ffcef0b5 100644
--- a/libavformat/gif.c
+++ b/libavformat/gif.c
@@ -200,7 +200,6 @@ static const AVOption options[] = {
 
 static const AVClass gif_muxer_class = {
     .class_name = "GIF muxer",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
     .option     = options,
 };
diff --git a/libavformat/gifdec.c b/libavformat/gifdec.c
index 32286adafe..d22f70e4c9 100644
--- a/libavformat/gifdec.c
+++ b/libavformat/gifdec.c
@@ -272,7 +272,6 @@ static const AVOption options[] = {
 
 static const AVClass demuxer_class = {
     .class_name = "GIF demuxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEMUXER,
diff --git a/libavformat/gsmdec.c b/libavformat/gsmdec.c
index 7150daa510..2f1cc159f3 100644
--- a/libavformat/gsmdec.c
+++ b/libavformat/gsmdec.c
@@ -97,7 +97,6 @@ static const AVOption options[] = {
 
 static const AVClass gsm_class = {
     .class_name = "gsm demuxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/hashenc.c b/libavformat/hashenc.c
index 17ee2f7e9f..a7ed15dfbd 100644
--- a/libavformat/hashenc.c
+++ b/libavformat/hashenc.c
@@ -52,7 +52,6 @@ static const AVOption hash_streamhash_options[] = {
 
 static const AVClass hash_streamhashenc_class = {
     .class_name = "(stream) hash muxer",
-    .item_name  = av_default_item_name,
     .option     = hash_streamhash_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -192,7 +191,6 @@ const FFOutputFormat ff_hash_muxer = {
 #if CONFIG_MD5_MUXER
 static const AVClass md5enc_class = {
     .class_name = "MD5 muxer",
-    .item_name  = av_default_item_name,
     .option     = md5_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -320,7 +318,6 @@ static int framehash_write_packet(struct AVFormatContext *s, AVPacket *pkt)
 #if CONFIG_FRAMEHASH_MUXER
 static const AVClass framehash_class = {
     .class_name = "frame hash muxer",
-    .item_name  = av_default_item_name,
     .option     = framehash_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -344,7 +341,6 @@ const FFOutputFormat ff_framehash_muxer = {
 #if CONFIG_FRAMEMD5_MUXER
 static const AVClass framemd5_class = {
     .class_name = "frame MD5 muxer",
-    .item_name  = av_default_item_name,
     .option     = framemd5_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/hca.c b/libavformat/hca.c
index e796512a62..3d36565fc1 100644
--- a/libavformat/hca.c
+++ b/libavformat/hca.c
@@ -143,7 +143,6 @@ static const AVOption hca_options[] = {
 
 static const AVClass hca_class = {
     .class_name = "hca",
-    .item_name  = av_default_item_name,
     .option     = hca_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/hdsenc.c b/libavformat/hdsenc.c
index 7062441b70..8386d28c79 100644
--- a/libavformat/hdsenc.c
+++ b/libavformat/hdsenc.c
@@ -563,7 +563,6 @@ static const AVOption options[] = {
 
 static const AVClass hds_class = {
     .class_name = "HDS muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/hls.c b/libavformat/hls.c
index 61e2d67588..a69430a457 100644
--- a/libavformat/hls.c
+++ b/libavformat/hls.c
@@ -2589,7 +2589,6 @@ static const AVOption hls_options[] = {
 
 static const AVClass hls_class = {
     .class_name = "hls demuxer",
-    .item_name  = av_default_item_name,
     .option     = hls_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c
index 7049956dd7..52824fce69 100644
--- a/libavformat/hlsenc.c
+++ b/libavformat/hlsenc.c
@@ -3183,7 +3183,6 @@ static const AVOption options[] = {
 
 static const AVClass hls_class = {
     .class_name = "hls muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/http.c b/libavformat/http.c
index c0fe7c36d9..8113043ffb 100644
--- a/libavformat/http.c
+++ b/libavformat/http.c
@@ -1986,7 +1986,6 @@ static int http_get_short_seek(URLContext *h)
 #define HTTP_CLASS(flavor)                          \
 static const AVClass flavor ## _context_class = {   \
     .class_name = # flavor,                         \
-    .item_name  = av_default_item_name,             \
     .option     = options,                          \
     .version    = LIBAVUTIL_VERSION_INT,            \
 }
diff --git a/libavformat/icecast.c b/libavformat/icecast.c
index b06c53cabd..f883f38777 100644
--- a/libavformat/icecast.c
+++ b/libavformat/icecast.c
@@ -207,7 +207,6 @@ static int icecast_write(URLContext *h, const uint8_t *buf, int size)
 
 static const AVClass icecast_context_class = {
     .class_name     = "icecast",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/imfdec.c b/libavformat/imfdec.c
index 818b5e590b..4525ed5909 100644
--- a/libavformat/imfdec.c
+++ b/libavformat/imfdec.c
@@ -1014,7 +1014,6 @@ static const AVOption imf_options[] = {
 
 static const AVClass imf_class = {
     .class_name = "imf",
-    .item_name  = av_default_item_name,
     .option     = imf_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/img2_alias_pix.c b/libavformat/img2_alias_pix.c
index d0aac83924..cc5a4f3b1f 100644
--- a/libavformat/img2_alias_pix.c
+++ b/libavformat/img2_alias_pix.c
@@ -56,7 +56,6 @@ static int alias_pix_read_probe(const AVProbeData *p)
 
 static const AVClass image2_alias_pix_class = {
     .class_name = "alias_pix demuxer",
-    .item_name  = av_default_item_name,
     .option     = ff_img_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/img2_brender_pix.c b/libavformat/img2_brender_pix.c
index 9d9a7c0819..50e65dda55 100644
--- a/libavformat/img2_brender_pix.c
+++ b/libavformat/img2_brender_pix.c
@@ -40,7 +40,6 @@ static int brender_read_probe(const AVProbeData *p)
 
 static const AVClass image2_brender_pix_class = {
     .class_name = "brender_pix demuxer",
-    .item_name  = av_default_item_name,
     .option     = ff_img_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/img2dec.c b/libavformat/img2dec.c
index 2761cb37a4..a719d5ff2a 100644
--- a/libavformat/img2dec.c
+++ b/libavformat/img2dec.c
@@ -634,7 +634,6 @@ const AVOption ff_img_options[] = {
 
 static const AVClass img2_class = {
     .class_name = "image2 demuxer",
-    .item_name  = av_default_item_name,
     .option     = ff_img_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -658,7 +657,6 @@ static const AVOption img2pipe_options[] = {
 };
 static const AVClass imagepipe_class = {
     .class_name = "imagepipe demuxer",
-    .item_name  = av_default_item_name,
     .option     = img2pipe_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/img2enc.c b/libavformat/img2enc.c
index 526a11e5ee..acfb404c6d 100644
--- a/libavformat/img2enc.c
+++ b/libavformat/img2enc.c
@@ -266,7 +266,6 @@ static const AVOption muxoptions[] = {
 #if CONFIG_IMAGE2_MUXER
 static const AVClass img2mux_class = {
     .class_name = "image2 muxer",
-    .item_name  = av_default_item_name,
     .option     = muxoptions,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/ipfsgateway.c b/libavformat/ipfsgateway.c
index 9c0d461099..879a33d818 100644
--- a/libavformat/ipfsgateway.c
+++ b/libavformat/ipfsgateway.c
@@ -331,7 +331,6 @@ static const AVOption options[] = {
 
 static const AVClass ipfs_gateway_context_class = {
     .class_name     = "IPFS Gateway",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/latmenc.c b/libavformat/latmenc.c
index 8eec632c54..77da397c29 100644
--- a/libavformat/latmenc.c
+++ b/libavformat/latmenc.c
@@ -52,7 +52,6 @@ static const AVOption options[] = {
 
 static const AVClass latm_muxer_class = {
     .class_name = "LATM/LOAS muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/libamqp.c b/libavformat/libamqp.c
index c3b9c484ea..24ad3e87f0 100644
--- a/libavformat/libamqp.c
+++ b/libavformat/libamqp.c
@@ -306,7 +306,6 @@ static int amqp_proto_close(URLContext *h)
 
 static const AVClass amqp_context_class = {
     .class_name = "amqp",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/libgme.c b/libavformat/libgme.c
index 695155c9ac..4d04537339 100644
--- a/libavformat/libgme.c
+++ b/libavformat/libgme.c
@@ -188,7 +188,6 @@ static int probe_gme(const AVProbeData *p)
 
 static const AVClass class_gme = {
     .class_name = "Game Music Emu demuxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/libmodplug.c b/libavformat/libmodplug.c
index 0cae13bd2e..f0c5dd9f18 100644
--- a/libavformat/libmodplug.c
+++ b/libavformat/libmodplug.c
@@ -375,7 +375,6 @@ static int modplug_probe(const AVProbeData *p)
 
 static const AVClass modplug_class = {
     .class_name = "ModPlug demuxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/libopenmpt.c b/libavformat/libopenmpt.c
index 3ca59f506f..8f46ef2415 100644
--- a/libavformat/libopenmpt.c
+++ b/libavformat/libopenmpt.c
@@ -273,7 +273,6 @@ static int read_probe_openmpt(const AVProbeData *p)
 
 static const AVClass class_openmpt = {
     .class_name = "libopenmpt",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/librist.c b/libavformat/librist.c
index 5f27cacd44..e43dad7388 100644
--- a/libavformat/librist.c
+++ b/libavformat/librist.c
@@ -252,7 +252,6 @@ static int librist_write(URLContext *h, const uint8_t *buf, int size)
 
 static const AVClass librist_class = {
     .class_name = "librist",
-    .item_name  = av_default_item_name,
     .option     = librist_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/librtmp.c b/libavformat/librtmp.c
index b7e9fc81cf..800d2711aa 100644
--- a/libavformat/librtmp.c
+++ b/libavformat/librtmp.c
@@ -284,7 +284,6 @@ static const AVOption options[] = {
 #define RTMP_CLASS(flavor)\
 static const AVClass lib ## flavor ## _class = {\
     .class_name = "lib" #flavor " protocol",\
-    .item_name  = av_default_item_name,\
     .option     = options,\
     .version    = LIBAVUTIL_VERSION_INT,\
 };
diff --git a/libavformat/libsmbclient.c b/libavformat/libsmbclient.c
index f81fff2dfc..ae51956a6f 100644
--- a/libavformat/libsmbclient.c
+++ b/libavformat/libsmbclient.c
@@ -358,7 +358,6 @@ static const AVOption options[] = {
 
 static const AVClass libsmbclient_context_class = {
     .class_name     = "libsmbc",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/libsrt.c b/libavformat/libsrt.c
index cd8f5b1e7d..1cc7ec9f86 100644
--- a/libavformat/libsrt.c
+++ b/libavformat/libsrt.c
@@ -727,7 +727,6 @@ static int libsrt_close(URLContext *h)
 
 static const AVClass libsrt_class = {
     .class_name = "libsrt",
-    .item_name  = av_default_item_name,
     .option     = libsrt_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/libssh.c b/libavformat/libssh.c
index 127faaabd3..6e434bf7cc 100644
--- a/libavformat/libssh.c
+++ b/libavformat/libssh.c
@@ -481,7 +481,6 @@ static const AVOption options[] = {
 
 static const AVClass libssh_context_class = {
     .class_name     = "libssh",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/libzmq.c b/libavformat/libzmq.c
index 04c72ac601..b4b0856121 100644
--- a/libavformat/libzmq.c
+++ b/libavformat/libzmq.c
@@ -187,7 +187,6 @@ static int zmq_proto_close(URLContext *h)
 
 static const AVClass zmq_context_class = {
     .class_name = "zmq",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 8f000f86be..f00a854fb0 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -4772,7 +4772,6 @@ static const AVOption options[] = {
 
 static const AVClass webm_dash_class = {
     .class_name = "WebM DASH Manifest demuxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index 1457a6890c..bceefdc9b0 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -3516,7 +3516,6 @@ static const AVOption options[] = {
 
 static const AVClass matroska_webm_class = {
     .class_name = "matroska/webm muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/microdvddec.c b/libavformat/microdvddec.c
index e536d12b85..2d424dff4e 100644
--- a/libavformat/microdvddec.c
+++ b/libavformat/microdvddec.c
@@ -193,7 +193,6 @@ static const AVOption microdvd_options[] = {
 
 static const AVClass microdvd_class = {
     .class_name = "microdvddec",
-    .item_name  = av_default_item_name,
     .option     = microdvd_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 30cf7a15b0..4f413bfbd5 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -9320,7 +9320,6 @@ static const AVOption mov_options[] = {
 
 static const AVClass mov_class = {
     .class_name = "mov,mp4,m4a,3gp,3g2,mj2",
-    .item_name  = av_default_item_name,
     .option     = mov_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index a902e4d4e7..6b1ff408c7 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -125,7 +125,6 @@ static const AVOption options[] = {
 
 static const AVClass mov_isobmff_muxer_class = {
     .class_name = "mov/mp4/tgp/psp/tg2/ipod/ismv/f4v muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -7924,7 +7923,6 @@ static const AVCodecTag *const codec_avif_tags_list[] = { codec_avif_tags, NULL
 
 static const AVClass mov_avif_muxer_class = {
     .class_name = "avif muxer",
-    .item_name  = av_default_item_name,
     .option     = avif_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/mp3dec.c b/libavformat/mp3dec.c
index 05c13228bc..466338f4bf 100644
--- a/libavformat/mp3dec.c
+++ b/libavformat/mp3dec.c
@@ -604,7 +604,6 @@ static const AVOption options[] = {
 
 static const AVClass demuxer_class = {
     .class_name = "mp3",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEMUXER,
diff --git a/libavformat/mp3enc.c b/libavformat/mp3enc.c
index cb250a46ca..cc69a48238 100644
--- a/libavformat/mp3enc.c
+++ b/libavformat/mp3enc.c
@@ -515,7 +515,6 @@ static const AVOption options[] = {
 
 static const AVClass mp3_muxer_class = {
     .class_name     = "MP3 muxer",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/mpeg.c b/libavformat/mpeg.c
index 781c3162d6..0505aed57e 100644
--- a/libavformat/mpeg.c
+++ b/libavformat/mpeg.c
@@ -1040,7 +1040,6 @@ static const AVOption options[] = {
 
 static const AVClass vobsub_demuxer_class = {
     .class_name = "vobsub",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/mpegenc.c b/libavformat/mpegenc.c
index 12d9fb33ec..632ed3eae6 100644
--- a/libavformat/mpegenc.c
+++ b/libavformat/mpegenc.c
@@ -1298,7 +1298,6 @@ static const AVOption options[] = {
 
 static const AVClass mpeg_class = {
     .class_name = "mpeg/(s)vcd/vob/dvd muxer",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
     .option     = options,
 };
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index c7fd1f5d1f..a3173cf38d 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -209,7 +209,6 @@ static const AVOption options[] = {
 
 static const AVClass mpegts_class = {
     .class_name = "mpegts demuxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -228,7 +227,6 @@ static const AVOption raw_options[] = {
 
 static const AVClass mpegtsraw_class = {
     .class_name = "mpegtsraw demuxer",
-    .item_name  = av_default_item_name,
     .option     = raw_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c
index 84edd418f0..6bdd09d8a5 100644
--- a/libavformat/mpegtsenc.c
+++ b/libavformat/mpegtsenc.c
@@ -2343,7 +2343,6 @@ static const AVOption options[] = {
 
 static const AVClass mpegts_muxer_class = {
     .class_name = "MPEGTS muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/mpjpeg.c b/libavformat/mpjpeg.c
index 81ace8e9ee..07b1da84a1 100644
--- a/libavformat/mpjpeg.c
+++ b/libavformat/mpjpeg.c
@@ -57,7 +57,6 @@ static const AVOption options[] = {
 
 static const AVClass mpjpeg_muxer_class = {
     .class_name = "mpjpeg_muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/mpjpegdec.c b/libavformat/mpjpegdec.c
index 236aed716a..ccec42c781 100644
--- a/libavformat/mpjpegdec.c
+++ b/libavformat/mpjpegdec.c
@@ -363,7 +363,6 @@ static const AVOption mpjpeg_options[] = {
 
 static const AVClass mpjpeg_demuxer_class = {
     .class_name     = "MPJPEG demuxer",
-    .item_name      = av_default_item_name,
     .option         = mpjpeg_options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index e42975e7fd..417848b3ea 100644
--- a/libavformat/mxfdec.c
+++ b/libavformat/mxfdec.c
@@ -4308,7 +4308,6 @@ static const AVOption options[] = {
 
 static const AVClass demuxer_class = {
     .class_name = "mxf",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEMUXER,
diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
index 53bd6aedca..074731b07f 100644
--- a/libavformat/mxfenc.c
+++ b/libavformat/mxfenc.c
@@ -3407,7 +3407,6 @@ static const AVOption mxf_options[] = {
 
 static const AVClass mxf_muxer_class = {
     .class_name     = "MXF muxer",
-    .item_name      = av_default_item_name,
     .option         = mxf_options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
@@ -3423,7 +3422,6 @@ static const AVOption d10_options[] = {
 
 static const AVClass mxf_d10_muxer_class = {
     .class_name     = "MXF-D10 muxer",
-    .item_name      = av_default_item_name,
     .option         = d10_options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
@@ -3439,7 +3437,6 @@ static const AVOption opatom_options[] = {
 
 static const AVClass mxf_opatom_muxer_class = {
     .class_name     = "MXF-OPAtom muxer",
-    .item_name      = av_default_item_name,
     .option         = opatom_options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/nutenc.c b/libavformat/nutenc.c
index a5198c7ca9..4a96dec593 100644
--- a/libavformat/nutenc.c
+++ b/libavformat/nutenc.c
@@ -1248,7 +1248,6 @@ static const AVOption options[] = {
 
 static const AVClass class = {
     .class_name = "nutenc",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/oggenc.c b/libavformat/oggenc.c
index 69a66f586d..38ceb17495 100644
--- a/libavformat/oggenc.c
+++ b/libavformat/oggenc.c
@@ -97,7 +97,6 @@ static const AVOption options[] = {
 
 static const AVClass ogg_muxer_class = {
     .class_name = "Ogg (audio/video/Speex/Opus) muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/options.c b/libavformat/options.c
index 73e220bb7d..ee7757ca89 100644
--- a/libavformat/options.c
+++ b/libavformat/options.c
@@ -234,7 +234,6 @@ static const AVOption stream_options[] = {
 
 static const AVClass stream_class = {
     .class_name     = "AVStream",
-    .item_name      = av_default_item_name,
     .version        = LIBAVUTIL_VERSION_INT,
     .option         = stream_options,
 };
@@ -374,7 +373,6 @@ static const AVOption stream_group_options[] = {
 
 static const AVClass stream_group_class = {
     .class_name     = "AVStreamGroup",
-    .item_name      = av_default_item_name,
     .version        = LIBAVUTIL_VERSION_INT,
     .option         = stream_group_options,
     .child_next     = stream_group_child_next,
diff --git a/libavformat/pcmdec.c b/libavformat/pcmdec.c
index 11ba0b5c0c..abaa435b44 100644
--- a/libavformat/pcmdec.c
+++ b/libavformat/pcmdec.c
@@ -124,7 +124,6 @@ static const AVOption pcm_options[] = {
 };
 static const AVClass pcm_demuxer_class = {
     .class_name = "pcm demuxer",
-    .item_name  = av_default_item_name,
     .option     = pcm_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -191,7 +190,6 @@ static const AVOption sln_options[] = {
 
 static const AVClass sln_demuxer_class = {
     .class_name = "sln demuxer",
-    .item_name  = av_default_item_name,
     .option     = sln_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/prompeg.c b/libavformat/prompeg.c
index 59faa824bb..98f25df453 100644
--- a/libavformat/prompeg.c
+++ b/libavformat/prompeg.c
@@ -129,7 +129,6 @@ static const AVOption options[] = {
 
 static const AVClass prompeg_class = {
     .class_name = "prompeg",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/rawdec.c b/libavformat/rawdec.c
index 1dd7fafcf0..0070b0b412 100644
--- a/libavformat/rawdec.c
+++ b/libavformat/rawdec.c
@@ -126,7 +126,6 @@ static const AVOption rawvideo_options[] = {
 
 const AVClass ff_rawvideo_demuxer_class = {
     .class_name = "generic raw video demuxer",
-    .item_name  = av_default_item_name,
     .option     = rawvideo_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -139,7 +138,6 @@ static const AVOption raw_options[] = {
 
 const AVClass ff_raw_demuxer_class = {
     .class_name = "generic raw demuxer",
-    .item_name  = av_default_item_name,
     .option     = raw_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/rawvideodec.c b/libavformat/rawvideodec.c
index 514e4e044f..2b81dad86e 100644
--- a/libavformat/rawvideodec.c
+++ b/libavformat/rawvideodec.c
@@ -144,7 +144,6 @@ static const AVOption rawvideo_options[] = {
 
 static const AVClass rawvideo_demuxer_class = {
     .class_name = "rawvideo demuxer",
-    .item_name  = av_default_item_name,
     .option     = rawvideo_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -163,7 +162,6 @@ const AVInputFormat ff_rawvideo_demuxer = {
 
 static const AVClass bitpacked_demuxer_class = {
     .class_name = "bitpacked demuxer",
-    .item_name  = av_default_item_name,
     .option     = rawvideo_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -184,7 +182,6 @@ const AVInputFormat ff_bitpacked_demuxer = {
 
 static const AVClass v210_demuxer_class = {
     .class_name = "v210(x) demuxer",
-    .item_name  = av_default_item_name,
     .option     = rawvideo_options + 1,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/rtmpcrypt.c b/libavformat/rtmpcrypt.c
index a835ab263f..b7b610f4e7 100644
--- a/libavformat/rtmpcrypt.c
+++ b/libavformat/rtmpcrypt.c
@@ -320,7 +320,6 @@ static const AVOption ffrtmpcrypt_options[] = {
 
 static const AVClass ffrtmpcrypt_class = {
     .class_name = "ffrtmpcrypt",
-    .item_name  = av_default_item_name,
     .option     = ffrtmpcrypt_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/rtmphttp.c b/libavformat/rtmphttp.c
index c920c19ab5..1f88243b00 100644
--- a/libavformat/rtmphttp.c
+++ b/libavformat/rtmphttp.c
@@ -268,7 +268,6 @@ static const AVOption ffrtmphttp_options[] = {
 
 static const AVClass ffrtmphttp_class = {
     .class_name = "ffrtmphttp",
-    .item_name  = av_default_item_name,
     .option     = ffrtmphttp_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/rtmpproto.c b/libavformat/rtmpproto.c
index 98718bc6da..5f6dfcb2fe 100644
--- a/libavformat/rtmpproto.c
+++ b/libavformat/rtmpproto.c
@@ -3161,7 +3161,6 @@ static const AVOption rtmp_options[] = {
 #define RTMP_PROTOCOL_1(flavor)                  \
 static const AVClass flavor##_class = {          \
     .class_name = #flavor,                       \
-    .item_name  = av_default_item_name,          \
     .option     = rtmp_options,                  \
     .version    = LIBAVUTIL_VERSION_INT,         \
 };                                               \
diff --git a/libavformat/rtpenc.c b/libavformat/rtpenc.c
index a8d296a154..472cb97e00 100644
--- a/libavformat/rtpenc.c
+++ b/libavformat/rtpenc.c
@@ -40,7 +40,6 @@ static const AVOption options[] = {
 
 static const AVClass rtp_muxer_class = {
     .class_name = "RTP muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/rtpenc_mpegts.c b/libavformat/rtpenc_mpegts.c
index 0d6403a048..c00461c8eb 100644
--- a/libavformat/rtpenc_mpegts.c
+++ b/libavformat/rtpenc_mpegts.c
@@ -183,7 +183,6 @@ static const AVOption options[] = {
 
 static const AVClass rtp_mpegts_class = {
     .class_name = "rtp_mpegts muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/rtpproto.c b/libavformat/rtpproto.c
index cac361047a..5b34271b75 100644
--- a/libavformat/rtpproto.c
+++ b/libavformat/rtpproto.c
@@ -86,7 +86,6 @@ static const AVOption options[] = {
 
 static const AVClass rtp_class = {
     .class_name = "rtp",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
index 7d1d3a75d4..583f5338e8 100644
--- a/libavformat/rtsp.c
+++ b/libavformat/rtsp.c
@@ -2479,7 +2479,6 @@ static int sdp_read_close(AVFormatContext *s)
 
 static const AVClass sdp_demuxer_class = {
     .class_name     = "SDP demuxer",
-    .item_name      = av_default_item_name,
     .option         = sdp_options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
@@ -2638,7 +2637,6 @@ fail:
 
 static const AVClass rtp_demuxer_class = {
     .class_name     = "RTP demuxer",
-    .item_name      = av_default_item_name,
     .option         = rtp_options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/rtspdec.c b/libavformat/rtspdec.c
index bbabec7db8..39fd92fb66 100644
--- a/libavformat/rtspdec.c
+++ b/libavformat/rtspdec.c
@@ -987,7 +987,6 @@ static int rtsp_read_seek(AVFormatContext *s, int stream_index,
 
 static const AVClass rtsp_demuxer_class = {
     .class_name     = "RTSP demuxer",
-    .item_name      = av_default_item_name,
     .option         = ff_rtsp_options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/rtspenc.c b/libavformat/rtspenc.c
index 3d444ccbfd..96031dcdba 100644
--- a/libavformat/rtspenc.c
+++ b/libavformat/rtspenc.c
@@ -38,7 +38,6 @@
 
 static const AVClass rtsp_muxer_class = {
     .class_name = "RTSP muxer",
-    .item_name  = av_default_item_name,
     .option     = ff_rtsp_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/sbgdec.c b/libavformat/sbgdec.c
index b2662ea418..7eaebcc652 100644
--- a/libavformat/sbgdec.c
+++ b/libavformat/sbgdec.c
@@ -1524,7 +1524,6 @@ static const AVOption sbg_options[] = {
 
 static const AVClass sbg_demuxer_class = {
     .class_name = "sbg_demuxer",
-    .item_name  = av_default_item_name,
     .option     = sbg_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/sctp.c b/libavformat/sctp.c
index 9d9e90097e..703937ce66 100644
--- a/libavformat/sctp.c
+++ b/libavformat/sctp.c
@@ -170,7 +170,6 @@ static const AVOption options[] = {
 
 static const AVClass sctp_class = {
     .class_name = "sctp",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/segment.c b/libavformat/segment.c
index 2a82f39f31..5c97114037 100644
--- a/libavformat/segment.c
+++ b/libavformat/segment.c
@@ -1084,7 +1084,6 @@ static const AVOption options[] = {
 
 static const AVClass seg_class = {
     .class_name = "(stream) segment muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/serdec.c b/libavformat/serdec.c
index 639c899249..ee947644e3 100644
--- a/libavformat/serdec.c
+++ b/libavformat/serdec.c
@@ -127,7 +127,6 @@ static const AVOption ser_options[] = {
 
 static const AVClass ser_demuxer_class = {
     .class_name = "ser demuxer",
-    .item_name  = av_default_item_name,
     .option     = ser_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/smoothstreamingenc.c b/libavformat/smoothstreamingenc.c
index 0379e9a079..f556c14496 100644
--- a/libavformat/smoothstreamingenc.c
+++ b/libavformat/smoothstreamingenc.c
@@ -635,7 +635,6 @@ static const AVOption options[] = {
 
 static const AVClass ism_class = {
     .class_name = "smooth streaming muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/spdifenc.c b/libavformat/spdifenc.c
index ca38674626..6bb187a416 100644
--- a/libavformat/spdifenc.c
+++ b/libavformat/spdifenc.c
@@ -103,7 +103,6 @@ static const AVOption options[] = {
 
 static const AVClass spdif_class = {
     .class_name     = "spdif",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/srtpproto.c b/libavformat/srtpproto.c
index 61669e05ad..e2984bc3ee 100644
--- a/libavformat/srtpproto.c
+++ b/libavformat/srtpproto.c
@@ -47,7 +47,6 @@ static const AVOption options[] = {
 
 static const AVClass srtp_context_class = {
     .class_name     = "srtp",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/subfile.c b/libavformat/subfile.c
index 633a9e3c62..4e2872d63a 100644
--- a/libavformat/subfile.c
+++ b/libavformat/subfile.c
@@ -44,7 +44,6 @@ static const AVOption subfile_options[] = {
 
 static const AVClass subfile_class = {
     .class_name = "subfile",
-    .item_name  = av_default_item_name,
     .option     = subfile_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/tcp.c b/libavformat/tcp.c
index db41394a84..87a074ec18 100644
--- a/libavformat/tcp.c
+++ b/libavformat/tcp.c
@@ -69,7 +69,6 @@ static const AVOption options[] = {
 
 static const AVClass tcp_class = {
     .class_name = "tcp",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/tedcaptionsdec.c b/libavformat/tedcaptionsdec.c
index a8aa9d9cf9..eea871f0ec 100644
--- a/libavformat/tedcaptionsdec.c
+++ b/libavformat/tedcaptionsdec.c
@@ -42,7 +42,6 @@ static const AVOption tedcaptions_options[] = {
 
 static const AVClass tedcaptions_demuxer_class = {
     .class_name = "tedcaptions_demuxer",
-    .item_name  = av_default_item_name,
     .option     = tedcaptions_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/tee.c b/libavformat/tee.c
index cfa8346bc9..8f161d51ee 100644
--- a/libavformat/tee.c
+++ b/libavformat/tee.c
@@ -74,7 +74,6 @@ static const AVOption options[] = {
 
 static const AVClass tee_muxer_class = {
     .class_name = "Tee muxer",
-    .item_name  = av_default_item_name,
     .option = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/tls_gnutls.c b/libavformat/tls_gnutls.c
index 2ab38a199b..8907819d0f 100644
--- a/libavformat/tls_gnutls.c
+++ b/libavformat/tls_gnutls.c
@@ -294,7 +294,6 @@ static const AVOption options[] = {
 
 static const AVClass tls_class = {
     .class_name = "tls",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/tls_libtls.c b/libavformat/tls_libtls.c
index 22858d4867..68a6572828 100644
--- a/libavformat/tls_libtls.c
+++ b/libavformat/tls_libtls.c
@@ -198,7 +198,6 @@ static const AVOption options[] = {
 
 static const AVClass tls_class = {
     .class_name = "tls",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/tls_mbedtls.c b/libavformat/tls_mbedtls.c
index 8503523b6d..7434f0826d 100644
--- a/libavformat/tls_mbedtls.c
+++ b/libavformat/tls_mbedtls.c
@@ -350,7 +350,6 @@ static const AVOption options[] = {
 
 static const AVClass tls_class = {
     .class_name = "tls",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/tls_openssl.c b/libavformat/tls_openssl.c
index 8bf766c01f..112d35f91f 100644
--- a/libavformat/tls_openssl.c
+++ b/libavformat/tls_openssl.c
@@ -380,7 +380,6 @@ static const AVOption options[] = {
 
 static const AVClass tls_class = {
     .class_name = "tls",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/tls_schannel.c b/libavformat/tls_schannel.c
index d4959f75fa..32c7607b8a 100644
--- a/libavformat/tls_schannel.c
+++ b/libavformat/tls_schannel.c
@@ -602,7 +602,6 @@ static const AVOption options[] = {
 
 static const AVClass tls_class = {
     .class_name = "tls",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/tls_securetransport.c b/libavformat/tls_securetransport.c
index f6a1a5e7b6..7b8d03130d 100644
--- a/libavformat/tls_securetransport.c
+++ b/libavformat/tls_securetransport.c
@@ -409,7 +409,6 @@ static const AVOption options[] = {
 
 static const AVClass tls_class = {
     .class_name = "tls",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/tty.c b/libavformat/tty.c
index fbea3196fa..62f570636e 100644
--- a/libavformat/tty.c
+++ b/libavformat/tty.c
@@ -173,7 +173,6 @@ static const AVOption options[] = {
 
 static const AVClass tty_demuxer_class = {
     .class_name     = "TTY demuxer",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/udp.c b/libavformat/udp.c
index d9514f5026..ecac0ef40b 100644
--- a/libavformat/udp.c
+++ b/libavformat/udp.c
@@ -144,14 +144,12 @@ static const AVOption options[] = {
 
 static const AVClass udp_class = {
     .class_name = "udp",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
 static const AVClass udplite_context_class = {
     .class_name     = "udplite",
-    .item_name      = av_default_item_name,
     .option         = options,
     .version        = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/unix.c b/libavformat/unix.c
index e668744580..31a01efeb5 100644
--- a/libavformat/unix.c
+++ b/libavformat/unix.c
@@ -55,7 +55,6 @@ static const AVOption unix_options[] = {
 
 static const AVClass unix_class = {
     .class_name = "unix",
-    .item_name  = av_default_item_name,
     .option     = unix_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/vapoursynth.c b/libavformat/vapoursynth.c
index b79ecfcf1b..b8778a7398 100644
--- a/libavformat/vapoursynth.c
+++ b/libavformat/vapoursynth.c
@@ -475,7 +475,6 @@ static av_cold int probe_vs(const AVProbeData *p)
 
 static const AVClass class_vs = {
     .class_name = "VapourSynth demuxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c
index 0c6629b157..7066609365 100644
--- a/libavformat/wavdec.c
+++ b/libavformat/wavdec.c
@@ -824,7 +824,6 @@ static int wav_read_seek(AVFormatContext *s,
 
 static const AVClass wav_demuxer_class = {
     .class_name = "WAV demuxer",
-    .item_name  = av_default_item_name,
     .option     = demux_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
@@ -987,7 +986,6 @@ static int w64_read_header(AVFormatContext *s)
 
 static const AVClass w64_demuxer_class = {
     .class_name = "W64 demuxer",
-    .item_name  = av_default_item_name,
     .option     = &demux_options[W64_DEMUXER_OPTIONS_OFFSET],
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/wavenc.c b/libavformat/wavenc.c
index 82acb9ef0f..34f4640e91 100644
--- a/libavformat/wavenc.c
+++ b/libavformat/wavenc.c
@@ -503,7 +503,6 @@ static const AVOption options[] = {
 
 static const AVClass wav_muxer_class = {
     .class_name = "WAV muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/webm_chunk.c b/libavformat/webm_chunk.c
index 494a83f507..0ce0c2b630 100644
--- a/libavformat/webm_chunk.c
+++ b/libavformat/webm_chunk.c
@@ -287,7 +287,6 @@ static const AVOption options[] = {
 
 static const AVClass webm_chunk_class = {
     .class_name = "WebM Chunk Muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/webmdashenc.c b/libavformat/webmdashenc.c
index 31ea3c6e8c..a8c8472b70 100644
--- a/libavformat/webmdashenc.c
+++ b/libavformat/webmdashenc.c
@@ -537,7 +537,6 @@ static const AVOption options[] = {
 
 static const AVClass webm_dash_class = {
     .class_name = "WebM DASH Manifest muxer",
-    .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavformat/webpenc.c b/libavformat/webpenc.c
index ea7a321975..9d1bd917f5 100644
--- a/libavformat/webpenc.c
+++ b/libavformat/webpenc.c
@@ -220,7 +220,6 @@ static const AVOption options[] = {
 
 static const AVClass webp_muxer_class = {
     .class_name = "WebP muxer",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
     .option     = options,
 };
diff --git a/libavformat/webvttdec.c b/libavformat/webvttdec.c
index 0b2fc77168..d6ba04db44 100644
--- a/libavformat/webvttdec.c
+++ b/libavformat/webvttdec.c
@@ -205,7 +205,6 @@ static const AVOption options[] = {
 
 static const AVClass webvtt_demuxer_class = {
     .class_name  = "WebVTT demuxer",
-    .item_name   = av_default_item_name,
     .option      = options,
     .version     = LIBAVUTIL_VERSION_INT,
 };
diff --git a/libavutil/cpu.c b/libavutil/cpu.c
index 48d195168c..374b53d3bb 100644
--- a/libavutil/cpu.c
+++ b/libavutil/cpu.c
@@ -197,7 +197,6 @@ int av_parse_cpu_caps(unsigned *flags, const char *s)
     };
     static const AVClass class = {
         .class_name = "cpuflags",
-        .item_name  = av_default_item_name,
         .option     = cpuflags_opts,
         .version    = LIBAVUTIL_VERSION_INT,
     };
diff --git a/libavutil/eval.c b/libavutil/eval.c
index d0bada9b31..bad9e4ecb8 100644
--- a/libavutil/eval.c
+++ b/libavutil/eval.c
@@ -59,7 +59,6 @@ typedef struct Parser {
 
 static const AVClass eval_class = {
     .class_name                = "Eval",
-    .item_name                 = av_default_item_name,
     .option                    = NULL,
     .version                   = LIBAVUTIL_VERSION_INT,
     .log_level_offset_offset   = offsetof(Parser, log_offset),
diff --git a/libavutil/file.c b/libavutil/file.c
index cc17885bcc..4855b91963 100644
--- a/libavutil/file.c
+++ b/libavutil/file.c
@@ -45,7 +45,6 @@ typedef struct FileLogContext {
 
 static const AVClass file_log_ctx_class = {
     .class_name                = "FILE",
-    .item_name                 = av_default_item_name,
     .option                    = NULL,
     .version                   = LIBAVUTIL_VERSION_INT,
     .log_level_offset_offset   = offsetof(FileLogContext, log_offset),
diff --git a/libavutil/file_open.c b/libavutil/file_open.c
index 9aa4e4ac61..5f6f17a881 100644
--- a/libavutil/file_open.c
+++ b/libavutil/file_open.c
@@ -101,7 +101,6 @@ typedef struct FileLogContext {
 
 static const AVClass file_log_ctx_class = {
     .class_name                = "TEMPFILE",
-    .item_name                 = av_default_item_name,
     .option                    = NULL,
     .version                   = LIBAVUTIL_VERSION_INT,
     .log_level_offset_offset   = offsetof(FileLogContext, log_offset),
diff --git a/libavutil/hwcontext.c b/libavutil/hwcontext.c
index e23bad230f..430cc9ffef 100644
--- a/libavutil/hwcontext.c
+++ b/libavutil/hwcontext.c
@@ -120,7 +120,6 @@ enum AVHWDeviceType av_hwdevice_iterate_types(enum AVHWDeviceType prev)
 
 static const AVClass hwdevice_ctx_class = {
     .class_name = "AVHWDeviceContext",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
@@ -222,7 +221,6 @@ fail:
 
 static const AVClass hwframe_ctx_class = {
     .class_name = "AVHWFramesContext",
-    .item_name  = av_default_item_name,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
diff --git a/libavutil/iamf.c b/libavutil/iamf.c
index 62b6051049..e648f6df2b 100644
--- a/libavutil/iamf.c
+++ b/libavutil/iamf.c
@@ -75,7 +75,6 @@ static const AVOption mix_gain_options[] = {
 
 static const AVClass mix_gain_class = {
     .class_name     = "AVIAMFSubmixElement",
-    .item_name      = av_default_item_name,
     .version        = LIBAVUTIL_VERSION_INT,
     .option         = mix_gain_options,
 };
@@ -90,7 +89,6 @@ static const AVOption demixing_info_options[] = {
 
 static const AVClass demixing_info_class = {
     .class_name     = "AVIAMFDemixingInfo",
-    .item_name      = av_default_item_name,
     .version        = LIBAVUTIL_VERSION_INT,
     .option         = demixing_info_options,
 };
@@ -104,7 +102,6 @@ static const AVOption recon_gain_options[] = {
 
 static const AVClass recon_gain_class = {
     .class_name     = "AVIAMFReconGain",
-    .item_name      = av_default_item_name,
     .version        = LIBAVUTIL_VERSION_INT,
     .option         = recon_gain_options,
 };
@@ -145,7 +142,6 @@ static const AVClass *param_definition_child_iterate(void **opaque)
 
 static const AVClass param_definition_class = {
     .class_name          = "AVIAMFParamDefinition",
-    .item_name           = av_default_item_name,
     .version             = LIBAVUTIL_VERSION_INT,
     .option              = param_definition_options,
     .child_class_iterate = param_definition_child_iterate,
@@ -274,7 +270,6 @@ static const AVOption layer_options[] = {
 
 static const AVClass layer_class = {
     .class_name     = "AVIAMFLayer",
-    .item_name      = av_default_item_name,
     .version        = LIBAVUTIL_VERSION_INT,
     .option         = layer_options,
 };
@@ -308,7 +303,6 @@ static const AVClass *audio_element_child_iterate(void **opaque)
 
 static const AVClass audio_element_class = {
     .class_name          = "AVIAMFAudioElement",
-    .item_name           = av_default_item_name,
     .version             = LIBAVUTIL_VERSION_INT,
     .option              = audio_element_options,
     .child_class_iterate = audio_element_child_iterate,
@@ -395,7 +389,6 @@ static const AVClass *submix_element_child_iterate(void **opaque)
 
 static const AVClass element_class = {
     .class_name          = "AVIAMFSubmixElement",
-    .item_name           = av_default_item_name,
     .version             = LIBAVUTIL_VERSION_INT,
     .option              = submix_element_options,
     .child_next          = submix_element_child_next,
@@ -425,7 +418,6 @@ static const AVOption submix_layout_options[] = {
 
 static const AVClass layout_class = {
     .class_name     = "AVIAMFSubmixLayout",
-    .item_name      = av_default_item_name,
     .version        = LIBAVUTIL_VERSION_INT,
     .option         = submix_layout_options,
 };
@@ -474,7 +466,6 @@ static const AVClass *submix_presentation_child_iterate(void **opaque)
 
 static const AVClass submix_class = {
     .class_name          = "AVIAMFSubmix",
-    .item_name           = av_default_item_name,
     .version             = LIBAVUTIL_VERSION_INT,
     .option              = submix_presentation_options,
     .child_next          = submix_presentation_child_next,
@@ -506,7 +497,6 @@ static const AVClass *mix_presentation_child_iterate(void **opaque)
 
 static const AVClass mix_presentation_class = {
     .class_name          = "AVIAMFMixPresentation",
-    .item_name           = av_default_item_name,
     .version             = LIBAVUTIL_VERSION_INT,
     .option              = mix_presentation_options,
     .child_class_iterate = mix_presentation_child_iterate,
diff --git a/libavutil/imgutils.c b/libavutil/imgutils.c
index aae40ba59a..ff9ff07961 100644
--- a/libavutil/imgutils.c
+++ b/libavutil/imgutils.c
@@ -279,7 +279,6 @@ typedef struct ImgUtils {
 
 static const AVClass imgutils_class = {
     .class_name                = "IMGUTILS",
-    .item_name                 = av_default_item_name,
     .option                    = NULL,
     .version                   = LIBAVUTIL_VERSION_INT,
     .log_level_offset_offset   = offsetof(ImgUtils, log_offset),
diff --git a/libavutil/opt.h b/libavutil/opt.h
index 461b5d3b6b..b0d46650d9 100644
--- a/libavutil/opt.h
+++ b/libavutil/opt.h
@@ -77,7 +77,6 @@
  *
  * static const AVClass test_class = {
  *     .class_name = "test class",
- *     .item_name  = av_default_item_name,
  *     .option     = test_options,
  *     .version    = LIBAVUTIL_VERSION_INT,
  * };
@@ -131,7 +130,6 @@
  *      };
  *      static const AVClass child_class = {
  *          .class_name = "child class",
- *          .item_name  = av_default_item_name,
  *          .option     = child_opts,
  *          .version    = LIBAVUTIL_VERSION_INT,
  *      };
