diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index b1aab0c8ea..6168062ce1 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -1043,18 +1043,10 @@ typedef struct AVStream {
     int64_t last_IP_pts;
     int last_IP_duration;
 
-    /**
-     * Number of packets to buffer for codec probing
-     */
-    int probe_packets;
-
-    /**
-     * Number of frames that have been demuxed during avformat_find_stream_info()
-     */
-    int codec_info_nb_frames;
-
 #if LIBAVFORMAT_VERSION_MAJOR < 59
     // kept for ABI compatibility only, do not access in any way
+    int          unused10;
+    int          unused11;
     int          unused8;
     void        *unused9;
     void        *unused7;
diff --git a/libavformat/dump.c b/libavformat/dump.c
index fe628010d3..0554bf667d 100644
--- a/libavformat/dump.c
+++ b/libavformat/dump.c
@@ -37,6 +37,7 @@
 #include "libavutil/timecode.h"
 
 #include "avformat.h"
+#include "internal.h"
 
 #define HEXDUMP_PRINT(...)                                                    \
     do {                                                                      \
@@ -551,7 +552,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
         av_log(NULL, AV_LOG_INFO, "[0x%x]", st->id);
     if (lang)
         av_log(NULL, AV_LOG_INFO, "(%s)", lang->value);
-    av_log(NULL, AV_LOG_DEBUG, ", %d, %d/%d", st->codec_info_nb_frames,
+    av_log(NULL, AV_LOG_DEBUG, ", %d, %d/%d", st->internal->codec_info_nb_frames,
            st->time_base.num, st->time_base.den);
     av_log(NULL, AV_LOG_INFO, ": %s", buf);
 
diff --git a/libavformat/internal.h b/libavformat/internal.h
index 496bd46ef0..edc8bbae80 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -347,6 +347,16 @@ struct AVStreamInternal {
     /* av_read_frame() support */
     enum AVStreamParseType need_parsing;
     struct AVCodecParserContext *parser;
+
+    /**
+     * Number of packets to buffer for codec probing
+     */
+    int probe_packets;
+
+    /**
+     * Number of frames that have been demuxed during avformat_find_stream_info()
+     */
+    int codec_info_nb_frames;
 };
 
 #ifdef __GNUC__
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index 6135d05477..86f943375a 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -953,7 +953,7 @@ static int mpegts_set_stream_info(AVStream *st, PESContext *pes,
     }
     if ((st->codecpar->codec_id == AV_CODEC_ID_NONE ||
             (st->internal->request_probe > 0 && st->internal->request_probe < AVPROBE_SCORE_STREAM_RETRY / 5)) &&
-        st->probe_packets > 0 &&
+        st->internal->probe_packets > 0 &&
         stream_type == STREAM_TYPE_PRIVATE_DATA) {
         st->codecpar->codec_type = AVMEDIA_TYPE_DATA;
         st->codecpar->codec_id   = AV_CODEC_ID_BIN_DATA;
diff --git a/libavformat/sbgdec.c b/libavformat/sbgdec.c
index c11244ef3d..d8efb9d9fb 100644
--- a/libavformat/sbgdec.c
+++ b/libavformat/sbgdec.c
@@ -1423,7 +1423,7 @@ static av_cold int sbg_read_header(AVFormatContext *avf)
     st->codecpar->sample_rate    = sbg->sample_rate;
     st->codecpar->frame_size     = sbg->frame_size;
     avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
-    st->probe_packets = 0;
+    st->internal->probe_packets = 0;
     st->start_time    = av_rescale(script.start_ts,
                                    sbg->sample_rate, AV_TIME_BASE);
     st->duration      = script.end_ts == AV_NOPTS_VALUE ? AV_NOPTS_VALUE :
diff --git a/libavformat/tedcaptionsdec.c b/libavformat/tedcaptionsdec.c
index 6c25d602d6..9ccb1f886d 100644
--- a/libavformat/tedcaptionsdec.c
+++ b/libavformat/tedcaptionsdec.c
@@ -297,7 +297,7 @@ static av_cold int tedcaptions_read_header(AVFormatContext *avf)
     st->codecpar->codec_type     = AVMEDIA_TYPE_SUBTITLE;
     st->codecpar->codec_id       = AV_CODEC_ID_TEXT;
     avpriv_set_pts_info(st, 64, 1, 1000);
-    st->probe_packets = 0;
+    st->internal->probe_packets = 0;
     st->start_time    = 0;
     st->duration      = last->pts + last->duration;
     st->cur_dts       = 0;
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 4d281a9ce8..c0ba07d288 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -358,7 +358,7 @@ static int set_codec_from_probe_data(AVFormatContext *s, AVStream *st,
         int i;
         av_log(s, AV_LOG_DEBUG,
                "Probe with size=%d, packets=%d detected %s with score=%d\n",
-               pd->buf_size, s->max_probe_packets - st->probe_packets,
+               pd->buf_size, s->max_probe_packets - st->internal->probe_packets,
                fmt->name, score);
         for (i = 0; fmt_id_type[i].name; i++) {
             if (!strcmp(fmt->name, fmt_id_type[i].name)) {
@@ -678,8 +678,8 @@ static int probe_codec(AVFormatContext *s, AVStream *st, const AVPacket *pkt)
     if (st->internal->request_probe>0) {
         AVProbeData *pd = &st->internal->probe_data;
         int end;
-        av_log(s, AV_LOG_DEBUG, "probing stream %d pp:%d\n", st->index, st->probe_packets);
-        --st->probe_packets;
+        av_log(s, AV_LOG_DEBUG, "probing stream %d pp:%d\n", st->index, st->internal->probe_packets);
+        --st->internal->probe_packets;
 
         if (pkt) {
             uint8_t *new_buf = av_realloc(pd->buf, pd->buf_size+pkt->size+AVPROBE_PADDING_SIZE);
@@ -695,7 +695,7 @@ static int probe_codec(AVFormatContext *s, AVStream *st, const AVPacket *pkt)
             memset(pd->buf + pd->buf_size, 0, AVPROBE_PADDING_SIZE);
         } else {
 no_packet:
-            st->probe_packets = 0;
+            st->internal->probe_packets = 0;
             if (!pd->buf_size) {
                 av_log(s, AV_LOG_WARNING,
                        "nothing to probe for stream %d\n", st->index);
@@ -703,7 +703,7 @@ no_packet:
         }
 
         end=    s->internal->raw_packet_buffer_remaining_size <= 0
-                || st->probe_packets<= 0;
+                || st->internal->probe_packets<= 0;
 
         if (end || av_log2(pd->buf_size) != av_log2(pd->buf_size - pkt->size)) {
             int score = set_codec_from_probe_data(s, st, pd);
@@ -828,7 +828,7 @@ int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
                 return ret;
             for (i = 0; i < s->nb_streams; i++) {
                 st = s->streams[i];
-                if (st->probe_packets || st->internal->request_probe > 0)
+                if (st->internal->probe_packets || st->internal->request_probe > 0)
                     if ((err = probe_codec(s, st, NULL)) < 0)
                         return err;
                 av_assert0(st->internal->request_probe <= 0);
@@ -1844,7 +1844,7 @@ int av_find_default_stream_index(AVFormatContext *s)
             if (st->codecpar->sample_rate)
                 score += 50;
         }
-        if (st->codec_info_nb_frames)
+        if (st->internal->codec_info_nb_frames)
             score += 12;
 
         if (st->discard != AVDISCARD_ALL)
@@ -1882,7 +1882,7 @@ void ff_read_frame_flush(AVFormatContext *s)
             /* We set the current DTS to an unspecified origin. */
             st->cur_dts = AV_NOPTS_VALUE;
 
-        st->probe_packets = s->max_probe_packets;
+        st->internal->probe_packets = s->max_probe_packets;
 
         for (j = 0; j < MAX_REORDER_DELAY + 1; j++)
             st->internal->pts_buffer[j] = AV_NOPTS_VALUE;
@@ -2700,7 +2700,7 @@ static void estimate_timings_from_bit_rate(AVFormatContext *ic)
                     break;
                 }
                 bit_rate += st->codecpar->bit_rate;
-            } else if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && st->codec_info_nb_frames > 1) {
+            } else if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && st->internal->codec_info_nb_frames > 1) {
                 // If we have a videostream with packets but without a bitrate
                 // then consider the sum not known
                 bit_rate = 0;
@@ -2968,7 +2968,7 @@ static int has_codec_parameters(AVStream *st, const char **errmsg_ptr)
         if (st->internal->info->found_decoder >= 0 && avctx->pix_fmt == AV_PIX_FMT_NONE)
             FAIL("unspecified pixel format");
         if (st->codecpar->codec_id == AV_CODEC_ID_RV30 || st->codecpar->codec_id == AV_CODEC_ID_RV40)
-            if (!st->sample_aspect_ratio.num && !st->codecpar->sample_aspect_ratio.num && !st->codec_info_nb_frames)
+            if (!st->sample_aspect_ratio.num && !st->codecpar->sample_aspect_ratio.num && !st->internal->codec_info_nb_frames)
                 FAIL("no frame in rv30/40 and no sar");
         break;
     case AVMEDIA_TYPE_SUBTITLE:
@@ -3041,7 +3041,7 @@ static int try_decode_frame(AVFormatContext *s, AVStream *st,
     while ((pkt.size > 0 || (!pkt.data && got_picture)) &&
            ret >= 0 &&
            (!has_codec_parameters(st, NULL) || !has_decode_delay_been_guessed(st) ||
-            (!st->codec_info_nb_frames &&
+            (!st->internal->codec_info_nb_frames &&
              (avctx->codec->capabilities & AV_CODEC_CAP_CHANNEL_CONF)))) {
         got_picture = 0;
         if (avctx->codec_type == AVMEDIA_TYPE_VIDEO ||
@@ -3715,7 +3715,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
                 break;
             if (st->first_dts == AV_NOPTS_VALUE &&
                 !(ic->iformat->flags & AVFMT_NOTIMESTAMPS) &&
-                st->codec_info_nb_frames < ((st->disposition & AV_DISPOSITION_ATTACHED_PIC) ? 1 : ic->max_ts_probe) &&
+                st->internal->codec_info_nb_frames < ((st->disposition & AV_DISPOSITION_ATTACHED_PIC) ? 1 : ic->max_ts_probe) &&
                 (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
                  st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO))
                 break;
@@ -3786,7 +3786,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
             st->internal->avctx_inited = 1;
         }
 
-        if (pkt->dts != AV_NOPTS_VALUE && st->codec_info_nb_frames > 1) {
+        if (pkt->dts != AV_NOPTS_VALUE && st->internal->codec_info_nb_frames > 1) {
             /* check for non-increasing dts */
             if (st->internal->info->fps_last_dts != AV_NOPTS_VALUE &&
                 st->internal->info->fps_last_dts >= pkt->dts) {
@@ -3794,7 +3794,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
                        "Non-increasing DTS in stream %d: packet %d with DTS "
                        "%"PRId64", packet %d with DTS %"PRId64"\n",
                        st->index, st->internal->info->fps_last_dts_idx,
-                       st->internal->info->fps_last_dts, st->codec_info_nb_frames,
+                       st->internal->info->fps_last_dts, st->internal->codec_info_nb_frames,
                        pkt->dts);
                 st->internal->info->fps_first_dts =
                 st->internal->info->fps_last_dts  = AV_NOPTS_VALUE;
@@ -3811,7 +3811,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
                        "DTS discontinuity in stream %d: packet %d with DTS "
                        "%"PRId64", packet %d with DTS %"PRId64"\n",
                        st->index, st->internal->info->fps_last_dts_idx,
-                       st->internal->info->fps_last_dts, st->codec_info_nb_frames,
+                       st->internal->info->fps_last_dts, st->internal->codec_info_nb_frames,
                        pkt->dts);
                 st->internal->info->fps_first_dts =
                 st->internal->info->fps_last_dts  = AV_NOPTS_VALUE;
@@ -3820,22 +3820,22 @@ FF_ENABLE_DEPRECATION_WARNINGS
             /* update stored dts values */
             if (st->internal->info->fps_first_dts == AV_NOPTS_VALUE) {
                 st->internal->info->fps_first_dts     = pkt->dts;
-                st->internal->info->fps_first_dts_idx = st->codec_info_nb_frames;
+                st->internal->info->fps_first_dts_idx = st->internal->codec_info_nb_frames;
             }
             st->internal->info->fps_last_dts     = pkt->dts;
-            st->internal->info->fps_last_dts_idx = st->codec_info_nb_frames;
+            st->internal->info->fps_last_dts_idx = st->internal->codec_info_nb_frames;
         }
-        if (st->codec_info_nb_frames>1) {
+        if (st->internal->codec_info_nb_frames>1) {
             int64_t t = 0;
             int64_t limit;
 
             if (st->time_base.den > 0)
                 t = av_rescale_q(st->internal->info->codec_info_duration, st->time_base, AV_TIME_BASE_Q);
             if (st->avg_frame_rate.num > 0)
-                t = FFMAX(t, av_rescale_q(st->codec_info_nb_frames, av_inv_q(st->avg_frame_rate), AV_TIME_BASE_Q));
+                t = FFMAX(t, av_rescale_q(st->internal->codec_info_nb_frames, av_inv_q(st->avg_frame_rate), AV_TIME_BASE_Q));
 
             if (   t == 0
-                && st->codec_info_nb_frames>30
+                && st->internal->codec_info_nb_frames>30
                 && st->internal->info->fps_first_dts != AV_NOPTS_VALUE
                 && st->internal->info->fps_last_dts  != AV_NOPTS_VALUE)
                 t = FFMAX(t, av_rescale_q(st->internal->info->fps_last_dts - st->internal->info->fps_first_dts, st->time_base, AV_TIME_BASE_Q));
@@ -3888,7 +3888,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
         if (ic->flags & AVFMT_FLAG_NOBUFFER)
             av_packet_unref(&pkt1);
 
-        st->codec_info_nb_frames++;
+        st->internal->codec_info_nb_frames++;
         count++;
     }
 
@@ -4212,7 +4212,7 @@ int av_find_best_stream(AVFormatContext *ic, enum AVMediaType type,
         }
         disposition = !(st->disposition & (AV_DISPOSITION_HEARING_IMPAIRED | AV_DISPOSITION_VISUAL_IMPAIRED))
                       + !! (st->disposition & AV_DISPOSITION_DEFAULT);
-        count = st->codec_info_nb_frames;
+        count = st->internal->codec_info_nb_frames;
         bitrate = par->bit_rate;
         multiframe = FFMIN(5, count);
         if ((best_disposition >  disposition) ||
@@ -4519,7 +4519,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
     st->start_time = AV_NOPTS_VALUE;
     st->duration   = AV_NOPTS_VALUE;
     st->first_dts     = AV_NOPTS_VALUE;
-    st->probe_packets = s->max_probe_packets;
+    st->internal->probe_packets = s->max_probe_packets;
     st->internal->pts_wrap_reference = AV_NOPTS_VALUE;
     st->internal->pts_wrap_behavior = AV_PTS_WRAP_IGNORE;
 
diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c
index 9b93cfce8e..e896b86a56 100644
--- a/libavformat/wavdec.c
+++ b/libavformat/wavdec.c
@@ -155,7 +155,7 @@ static void handle_stream_probing(AVStream *st)
 {
     if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S16LE) {
         st->internal->request_probe = AVPROBE_SCORE_EXTENSION;
-        st->probe_packets = FFMIN(st->probe_packets, 32);
+        st->internal->probe_packets = FFMIN(st->internal->probe_packets, 32);
     }
 }
 
diff --git a/tests/api/api-codec-param-test.c b/tests/api/api-codec-param-test.c
index 0868322cb4..af3f70d373 100644
--- a/tests/api/api-codec-param-test.c
+++ b/tests/api/api-codec-param-test.c
@@ -22,6 +22,7 @@
 
 #include <stdio.h>
 #include "libavformat/avformat.h"
+#include "libavformat/internal.h"
 #include "libavutil/pixdesc.h"
 #include "libavcodec/internal.h"
 #include "libavutil/avassert.h"
@@ -100,7 +101,7 @@ static int find_video_stream_info(AVFormatContext *fmt_ctx, int decode)
          * which writes to this field.
          * */
         if (codec_ctx->codec_type != AVMEDIA_TYPE_VIDEO ||
-            st->codec_info_nb_frames++ > 0) {
+            st->internal->codec_info_nb_frames++ > 0) {
             av_packet_unref(&pkt);
             continue;
         }
@@ -122,7 +123,7 @@ static int find_video_stream_info(AVFormatContext *fmt_ctx, int decode)
             if (codec_ctx->codec_type != AVMEDIA_TYPE_VIDEO)
                 continue;
 
-            done &= st->codec_info_nb_frames > 0;
+            done &= st->internal->codec_info_nb_frames > 0;
         }
     }
 
