diff --git a/libavcodec/h264_parser.c b/libavcodec/h264_parser.c
index 2564c6c6c3..dd0a965af0 100644
--- a/libavcodec/h264_parser.c
+++ b/libavcodec/h264_parser.c
@@ -473,23 +473,23 @@ static inline int parse_nal_units(AVCodecParserContext *s,
 
             if (sps->pic_struct_present_flag && p->sei.picture_timing.present) {
                 switch (p->sei.picture_timing.pic_struct) {
-                case SEI_PIC_STRUCT_TOP_FIELD:
-                case SEI_PIC_STRUCT_BOTTOM_FIELD:
+                case H264_SEI_PIC_STRUCT_TOP_FIELD:
+                case H264_SEI_PIC_STRUCT_BOTTOM_FIELD:
                     s->repeat_pict = 0;
                     break;
-                case SEI_PIC_STRUCT_FRAME:
-                case SEI_PIC_STRUCT_TOP_BOTTOM:
-                case SEI_PIC_STRUCT_BOTTOM_TOP:
+                case H264_SEI_PIC_STRUCT_FRAME:
+                case H264_SEI_PIC_STRUCT_TOP_BOTTOM:
+                case H264_SEI_PIC_STRUCT_BOTTOM_TOP:
                     s->repeat_pict = 1;
                     break;
-                case SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
-                case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
+                case H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
+                case H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
                     s->repeat_pict = 2;
                     break;
-                case SEI_PIC_STRUCT_FRAME_DOUBLING:
+                case H264_SEI_PIC_STRUCT_FRAME_DOUBLING:
                     s->repeat_pict = 3;
                     break;
-                case SEI_PIC_STRUCT_FRAME_TRIPLING:
+                case H264_SEI_PIC_STRUCT_FRAME_TRIPLING:
                     s->repeat_pict = 5;
                     break;
                 default:
@@ -504,12 +504,12 @@ static inline int parse_nal_units(AVCodecParserContext *s,
                 s->picture_structure = AV_PICTURE_STRUCTURE_FRAME;
                 if (sps->pic_struct_present_flag && p->sei.picture_timing.present) {
                     switch (p->sei.picture_timing.pic_struct) {
-                    case SEI_PIC_STRUCT_TOP_BOTTOM:
-                    case SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
+                    case H264_SEI_PIC_STRUCT_TOP_BOTTOM:
+                    case H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
                         s->field_order = AV_FIELD_TT;
                         break;
-                    case SEI_PIC_STRUCT_BOTTOM_TOP:
-                    case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
+                    case H264_SEI_PIC_STRUCT_BOTTOM_TOP:
+                    case H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
                         s->field_order = AV_FIELD_BB;
                         break;
                     default:
diff --git a/libavcodec/h264_sei.c b/libavcodec/h264_sei.c
index 889bea2ee0..2afe48e2fe 100644
--- a/libavcodec/h264_sei.c
+++ b/libavcodec/h264_sei.c
@@ -81,7 +81,7 @@ static int decode_picture_timing(H264SEIPictureTiming *h, GetBitContext *gb,
         h->pic_struct = get_bits(gb, 4);
         h->ct_type    = 0;
 
-        if (h->pic_struct > SEI_PIC_STRUCT_FRAME_TRIPLING)
+        if (h->pic_struct > H264_SEI_PIC_STRUCT_FRAME_TRIPLING)
             return AVERROR_INVALIDDATA;
 
         num_clock_ts = sei_num_clock_ts_table[h->pic_struct];
@@ -421,31 +421,31 @@ int ff_h264_sei_decode(H264SEIContext *h, GetBitContext *gb,
         next = get_bits_count(gb) + 8 * size;
 
         switch (type) {
-        case SEI_TYPE_PIC_TIMING: // Picture timing SEI
+        case H264_SEI_TYPE_PIC_TIMING: // Picture timing SEI
             ret = decode_picture_timing(&h->picture_timing, gb, ps, logctx);
             break;
-        case SEI_TYPE_USER_DATA_REGISTERED:
+        case H264_SEI_TYPE_USER_DATA_REGISTERED:
             ret = decode_registered_user_data(h, gb, logctx, size);
             break;
-        case SEI_TYPE_USER_DATA_UNREGISTERED:
+        case H264_SEI_TYPE_USER_DATA_UNREGISTERED:
             ret = decode_unregistered_user_data(&h->unregistered, gb, logctx, size);
             break;
-        case SEI_TYPE_RECOVERY_POINT:
+        case H264_SEI_TYPE_RECOVERY_POINT:
             ret = decode_recovery_point(&h->recovery_point, gb);
             break;
-        case SEI_TYPE_BUFFERING_PERIOD:
+        case H264_SEI_TYPE_BUFFERING_PERIOD:
             ret = decode_buffering_period(&h->buffering_period, gb, ps, logctx);
             break;
-        case SEI_TYPE_FRAME_PACKING:
+        case H264_SEI_TYPE_FRAME_PACKING:
             ret = decode_frame_packing_arrangement(&h->frame_packing, gb);
             break;
-        case SEI_TYPE_DISPLAY_ORIENTATION:
+        case H264_SEI_TYPE_DISPLAY_ORIENTATION:
             ret = decode_display_orientation(&h->display_orientation, gb);
             break;
-        case SEI_TYPE_GREEN_METADATA:
+        case H264_SEI_TYPE_GREEN_METADATA:
             ret = decode_green_metadata(&h->green_metadata, gb);
             break;
-        case SEI_TYPE_ALTERNATIVE_TRANSFER:
+        case H264_SEI_TYPE_ALTERNATIVE_TRANSFER:
             ret = decode_alternative_transfer(&h->alternative_transfer, gb);
             break;
         default:
diff --git a/libavcodec/h264_sei.h b/libavcodec/h264_sei.h
index 5f5d895e89..8cad5ea997 100644
--- a/libavcodec/h264_sei.h
+++ b/libavcodec/h264_sei.h
@@ -25,31 +25,32 @@
  * SEI message types
  */
 typedef enum {
-    SEI_TYPE_BUFFERING_PERIOD       = 0,   ///< buffering period (H.264, D.1.1)
-    SEI_TYPE_PIC_TIMING             = 1,   ///< picture timing
-    SEI_TYPE_USER_DATA_REGISTERED   = 4,   ///< registered user data as specified by Rec. ITU-T T.35
-    SEI_TYPE_USER_DATA_UNREGISTERED = 5,   ///< unregistered user data
-    SEI_TYPE_RECOVERY_POINT         = 6,   ///< recovery point (frame # to decoder sync)
-    SEI_TYPE_FRAME_PACKING          = 45,  ///< frame packing arrangement
-    SEI_TYPE_DISPLAY_ORIENTATION    = 47,  ///< display orientation
-    SEI_TYPE_GREEN_METADATA         = 56,  ///< GreenMPEG information
-    SEI_TYPE_ALTERNATIVE_TRANSFER   = 147, ///< alternative transfer
-} SEI_Type;
+    H264_SEI_TYPE_BUFFERING_PERIOD       = 0,   ///< buffering period (H.264, D.1.1)
+    H264_SEI_TYPE_PIC_TIMING             = 1,   ///< picture timing
+    H264_SEI_TYPE_FILLER_PAYLOAD         = 3,   ///< filler data
+    H264_SEI_TYPE_USER_DATA_REGISTERED   = 4,   ///< registered user data as specified by Rec. ITU-T T.35
+    H264_SEI_TYPE_USER_DATA_UNREGISTERED = 5,   ///< unregistered user data
+    H264_SEI_TYPE_RECOVERY_POINT         = 6,   ///< recovery point (frame # to decoder sync)
+    H264_SEI_TYPE_FRAME_PACKING          = 45,  ///< frame packing arrangement
+    H264_SEI_TYPE_DISPLAY_ORIENTATION    = 47,  ///< display orientation
+    H264_SEI_TYPE_GREEN_METADATA         = 56,  ///< GreenMPEG information
+    H264_SEI_TYPE_ALTERNATIVE_TRANSFER   = 147, ///< alternative transfer
+} H264_SEI_Type;
 
 /**
  * pic_struct in picture timing SEI message
  */
 typedef enum {
-    SEI_PIC_STRUCT_FRAME             = 0, ///<  0: %frame
-    SEI_PIC_STRUCT_TOP_FIELD         = 1, ///<  1: top field
-    SEI_PIC_STRUCT_BOTTOM_FIELD      = 2, ///<  2: bottom field
-    SEI_PIC_STRUCT_TOP_BOTTOM        = 3, ///<  3: top field, bottom field, in that order
-    SEI_PIC_STRUCT_BOTTOM_TOP        = 4, ///<  4: bottom field, top field, in that order
-    SEI_PIC_STRUCT_TOP_BOTTOM_TOP    = 5, ///<  5: top field, bottom field, top field repeated, in that order
-    SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM = 6, ///<  6: bottom field, top field, bottom field repeated, in that order
-    SEI_PIC_STRUCT_FRAME_DOUBLING    = 7, ///<  7: %frame doubling
-    SEI_PIC_STRUCT_FRAME_TRIPLING    = 8  ///<  8: %frame tripling
-} SEI_PicStructType;
+    H264_SEI_PIC_STRUCT_FRAME             = 0, ///<  0: %frame
+    H264_SEI_PIC_STRUCT_TOP_FIELD         = 1, ///<  1: top field
+    H264_SEI_PIC_STRUCT_BOTTOM_FIELD      = 2, ///<  2: bottom field
+    H264_SEI_PIC_STRUCT_TOP_BOTTOM        = 3, ///<  3: top field, bottom field, in that order
+    H264_SEI_PIC_STRUCT_BOTTOM_TOP        = 4, ///<  4: bottom field, top field, in that order
+    H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP    = 5, ///<  5: top field, bottom field, top field repeated, in that order
+    H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM = 6, ///<  6: bottom field, top field, bottom field repeated, in that order
+    H264_SEI_PIC_STRUCT_FRAME_DOUBLING    = 7, ///<  7: %frame doubling
+    H264_SEI_PIC_STRUCT_FRAME_TRIPLING    = 8  ///<  8: %frame tripling
+} H264_SEI_PicStructType;
 
 /**
  * frame_packing_arrangement types
@@ -66,7 +67,7 @@ typedef enum {
 
 typedef struct H264SEIPictureTiming {
     int present;
-    SEI_PicStructType pic_struct;
+    H264_SEI_PicStructType pic_struct;
 
     /**
      * Bit set of clock types for fields/frames in picture timing SEI message.
diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c
index ebff7b33e3..2577edd8a6 100644
--- a/libavcodec/h264_slice.c
+++ b/libavcodec/h264_slice.c
@@ -1150,37 +1150,37 @@ static int h264_export_frame_props(H264Context *h)
     if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
         H264SEIPictureTiming *pt = &h->sei.picture_timing;
         switch (pt->pic_struct) {
-        case SEI_PIC_STRUCT_FRAME:
+        case H264_SEI_PIC_STRUCT_FRAME:
             break;
-        case SEI_PIC_STRUCT_TOP_FIELD:
-        case SEI_PIC_STRUCT_BOTTOM_FIELD:
+        case H264_SEI_PIC_STRUCT_TOP_FIELD:
+        case H264_SEI_PIC_STRUCT_BOTTOM_FIELD:
             cur->f->interlaced_frame = 1;
             break;
-        case SEI_PIC_STRUCT_TOP_BOTTOM:
-        case SEI_PIC_STRUCT_BOTTOM_TOP:
+        case H264_SEI_PIC_STRUCT_TOP_BOTTOM:
+        case H264_SEI_PIC_STRUCT_BOTTOM_TOP:
             if (FIELD_OR_MBAFF_PICTURE(h))
                 cur->f->interlaced_frame = 1;
             else
                 // try to flag soft telecine progressive
                 cur->f->interlaced_frame = h->prev_interlaced_frame;
             break;
-        case SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
-        case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
+        case H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
+        case H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
             /* Signal the possibility of telecined film externally
              * (pic_struct 5,6). From these hints, let the applications
              * decide if they apply deinterlacing. */
             cur->f->repeat_pict = 1;
             break;
-        case SEI_PIC_STRUCT_FRAME_DOUBLING:
+        case H264_SEI_PIC_STRUCT_FRAME_DOUBLING:
             cur->f->repeat_pict = 2;
             break;
-        case SEI_PIC_STRUCT_FRAME_TRIPLING:
+        case H264_SEI_PIC_STRUCT_FRAME_TRIPLING:
             cur->f->repeat_pict = 4;
             break;
         }
 
         if ((pt->ct_type & 3) &&
-            pt->pic_struct <= SEI_PIC_STRUCT_BOTTOM_TOP)
+            pt->pic_struct <= H264_SEI_PIC_STRUCT_BOTTOM_TOP)
             cur->f->interlaced_frame = (pt->ct_type & (1 << 1)) != 0;
     } else {
         /* Derive interlacing flag from used decoding process. */
@@ -1195,8 +1195,8 @@ static int h264_export_frame_props(H264Context *h)
         if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
             /* Use picture timing SEI information. Even if it is a
              * information of a past frame, better than nothing. */
-            if (h->sei.picture_timing.pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM ||
-                h->sei.picture_timing.pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
+            if (h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM ||
+                h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
                 cur->f->top_field_first = 1;
             else
                 cur->f->top_field_first = 0;
diff --git a/libavcodec/vaapi_encode_h264.c b/libavcodec/vaapi_encode_h264.c
index 90c7f7e3cc..549867ef3f 100644
--- a/libavcodec/vaapi_encode_h264.c
+++ b/libavcodec/vaapi_encode_h264.c
@@ -644,18 +644,18 @@ static void vaapi_encode_h264_write_sei(PutBitContext *pbc,
 
     for (payload_type = 0; payload_type < 64; payload_type++) {
         switch (payload_type) {
-        case SEI_TYPE_BUFFERING_PERIOD:
+        case H264_SEI_TYPE_BUFFERING_PERIOD:
             if (!priv->send_timing_sei ||
                 pic->type != PICTURE_TYPE_IDR)
                 continue;
             write_payload = &vaapi_encode_h264_write_buffering_period;
             break;
-        case SEI_TYPE_PIC_TIMING:
+        case H264_SEI_TYPE_PIC_TIMING:
             if (!priv->send_timing_sei)
                 continue;
             write_payload = &vaapi_encode_h264_write_pic_timing;
             break;
-        case SEI_TYPE_USER_DATA_UNREGISTERED:
+        case H264_SEI_TYPE_USER_DATA_UNREGISTERED:
             if (pic->encode_order != 0)
                 continue;
             write_payload = &vaapi_encode_h264_write_identifier;
