avformat/avformat: use the side data from AVStream.codecpar

Deprecate AVStream.side_data and its helpers in favor of the AVStream's
codecpar.coded_side_data.

This will considerably simplify the propagation of global side data to decoders
and from encoders. Instead of having to do it inside packets, it will be
available during init().
Global and frame specific side data will therefore be distinct.

Signed-off-by: James Almer <jamrial@gmail.com>

25 files changed, 329 insertions, 250 deletions

diff --git a/libavformat/avformat.c b/libavformat/avformat.c
index 7ff0cf3429..5b8bb7879e 100644
--- a/libavformat/avformat.c
+++ b/libavformat/avformat.c
@@ -48,9 +48,13 @@ void ff_free_stream(AVStream **pst)
     if (!st)
         return;
 
+#if FF_API_AVSTREAM_SIDE_DATA
+FF_DISABLE_DEPRECATION_WARNINGS
     for (int i = 0; i < st->nb_side_data; i++)
         av_freep(&st->side_data[i].data);
     av_freep(&st->side_data);
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
 
     if (st->attached_pic.data)
         av_packet_unref(&st->attached_pic);
@@ -140,6 +144,8 @@ void avformat_free_context(AVFormatContext *s)
     av_free(s);
 }
 
+#if FF_API_AVSTREAM_SIDE_DATA
+FF_DISABLE_DEPRECATION_WARNINGS
 uint8_t *av_stream_get_side_data(const AVStream *st,
                                  enum AVPacketSideDataType type, size_t *size)
 {
@@ -207,36 +213,8 @@ uint8_t *av_stream_new_side_data(AVStream *st, enum AVPacketSideDataType type,
 
     return data;
 }
-
-int ff_stream_side_data_copy(AVStream *dst, const AVStream *src)
-{
-    /* Free existing side data*/
-    for (int i = 0; i < dst->nb_side_data; i++)
-        av_free(dst->side_data[i].data);
-    av_freep(&dst->side_data);
-    dst->nb_side_data = 0;
-
-    /* Copy side data if present */
-    if (src->nb_side_data) {
-        dst->side_data = av_calloc(src->nb_side_data,
-                                   sizeof(*dst->side_data));
-        if (!dst->side_data)
-            return AVERROR(ENOMEM);
-        dst->nb_side_data = src->nb_side_data;
-
-        for (int i = 0; i < src->nb_side_data; i++) {
-            uint8_t *data = av_memdup(src->side_data[i].data,
-                                      src->side_data[i].size);
-            if (!data)
-                return AVERROR(ENOMEM);
-            dst->side_data[i].type = src->side_data[i].type;
-            dst->side_data[i].size = src->side_data[i].size;
-            dst->side_data[i].data = data;
-        }
-    }
-
-    return 0;
-}
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
 
 /**
  * Copy all stream parameters from source to destination stream, with the
@@ -272,10 +250,6 @@ static int stream_params_copy(AVStream *dst, const AVStream *src)
     if (ret < 0)
         return ret;
 
-    ret = ff_stream_side_data_copy(dst, src);
-    if (ret < 0)
-        return ret;
-
     av_packet_unref(&dst->attached_pic);
     if (src->attached_pic.data) {
         ret = av_packet_ref(&dst->attached_pic, &src->attached_pic);
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index a8e245000f..9e7eca007e 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -940,6 +940,7 @@ typedef struct AVStream {
      */
     AVPacket attached_pic;
 
+#if FF_API_AVSTREAM_SIDE_DATA
     /**
      * An array of side data that applies to the whole stream (i.e. the
      * container does not allow it to change between packets).
@@ -956,13 +957,20 @@ typedef struct AVStream {
      *
      * Freed by libavformat in avformat_free_context().
      *
-     * @see av_format_inject_global_side_data()
+     * @deprecated use AVStream's @ref AVCodecParameters.coded_side_data
+     *             "codecpar side data".
      */
+    attribute_deprecated
     AVPacketSideData *side_data;
     /**
      * The number of elements in the AVStream.side_data array.
+     *
+     * @deprecated use AVStream's @ref AVCodecParameters.nb_coded_side_data
+     *             "codecpar side data".
      */
+    attribute_deprecated
     int            nb_side_data;
+#endif
 
     /**
      * Flags indicating events happening on the stream, a combination of
@@ -1723,6 +1731,12 @@ typedef struct AVFormatContext {
 /**
  * This function will cause global side data to be injected in the next packet
  * of each stream as well as after any subsequent seek.
+ *
+ * @note global side data is always available in every AVStream's
+ *       @ref AVCodecParameters.coded_side_data "codecpar side data" array, and
+ *       in a @ref AVCodecContext.coded_side_data "decoder's side data" array if
+ *       initialized with said stream's codecpar.
+ * @see av_packet_side_data_get()
  */
 void av_format_inject_global_side_data(AVFormatContext *s);
 
@@ -1849,6 +1863,7 @@ const AVClass *av_stream_get_class(void);
  */
 AVStream *avformat_new_stream(AVFormatContext *s, const struct AVCodec *c);
 
+#if FF_API_AVSTREAM_SIDE_DATA
 /**
  * Wrap an existing array as stream side data.
  *
@@ -1861,7 +1876,10 @@ AVStream *avformat_new_stream(AVFormatContext *s, const struct AVCodec *c);
  *
  * @return zero on success, a negative AVERROR code on failure. On failure,
  *         the stream is unchanged and the data remains owned by the caller.
+ * @deprecated use av_packet_side_data_add() with the stream's
+ *             @ref AVCodecParameters.coded_side_data "codecpar side data"
  */
+attribute_deprecated
 int av_stream_add_side_data(AVStream *st, enum AVPacketSideDataType type,
                             uint8_t *data, size_t size);
 
@@ -1873,7 +1891,10 @@ int av_stream_add_side_data(AVStream *st, enum AVPacketSideDataType type,
  * @param size   side information size
  *
  * @return pointer to fresh allocated data or NULL otherwise
+ * @deprecated use av_packet_side_data_new() with the stream's
+ *             @ref AVCodecParameters.coded_side_data "codecpar side data"
  */
+attribute_deprecated
 uint8_t *av_stream_new_side_data(AVStream *stream,
                                  enum AVPacketSideDataType type, size_t size);
 /**
@@ -1885,9 +1906,13 @@ uint8_t *av_stream_new_side_data(AVStream *stream,
  *               or to zero if the desired side data is not present.
  *
  * @return pointer to data if present or NULL otherwise
+ * @deprecated use av_packet_side_data_get() with the stream's
+ *             @ref AVCodecParameters.coded_side_data "codecpar side data"
  */
+attribute_deprecated
 uint8_t *av_stream_get_side_data(const AVStream *stream,
                                  enum AVPacketSideDataType type, size_t *size);
+#endif
 
 AVProgram *av_new_program(AVFormatContext *s, int id);
 
diff --git a/libavformat/concatdec.c b/libavformat/concatdec.c
index 114b6c6564..ffa8ade25b 100644
--- a/libavformat/concatdec.c
+++ b/libavformat/concatdec.c
@@ -194,7 +194,6 @@ static int copy_stream_props(AVStream *st, AVStream *source_st)
     avpriv_set_pts_info(st, 64, source_st->time_base.num, source_st->time_base.den);
 
     av_dict_copy(&st->metadata, source_st->metadata, 0);
-    ff_stream_side_data_copy(st, source_st);
     return 0;
 }
 
diff --git a/libavformat/dashdec.c b/libavformat/dashdec.c
index cbe34f4f50..1215407f3c 100644
--- a/libavformat/dashdec.c
+++ b/libavformat/dashdec.c
@@ -1954,17 +1954,6 @@ static int open_demux_for_component(AVFormatContext *s, struct representation *p
 
         // copy disposition
         st->disposition = ist->disposition;
-
-        // copy side data
-        for (int i = 0; i < ist->nb_side_data; i++) {
-            const AVPacketSideData *sd_src = &ist->side_data[i];
-            uint8_t *dst_data;
-
-            dst_data = av_stream_new_side_data(st, sd_src->type, sd_src->size);
-            if (!dst_data)
-                return AVERROR(ENOMEM);
-            memcpy(dst_data, sd_src->data, sd_src->size);
-        }
     }
 
     return 0;
diff --git a/libavformat/demux.c b/libavformat/demux.c
index 45cdb8e1b7..6f640b92b1 100644
--- a/libavformat/demux.c
+++ b/libavformat/demux.c
@@ -1409,9 +1409,10 @@ FF_ENABLE_DEPRECATION_WARNINGS
             sti->skip_samples = 0;
         }
 
+#if FF_API_AVSTREAM_SIDE_DATA
         if (sti->inject_global_side_data) {
-            for (int i = 0; i < st->nb_side_data; i++) {
-                const AVPacketSideData *const src_sd = &st->side_data[i];
+            for (int i = 0; i < st->codecpar->nb_coded_side_data; i++) {
+                const AVPacketSideData *const src_sd = &st->codecpar->coded_side_data[i];
                 uint8_t *dst_data;
 
                 if (av_packet_get_side_data(pkt, src_sd->type, NULL))
@@ -1427,6 +1428,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
             }
             sti->inject_global_side_data = 0;
         }
+#endif
     }
 
     if (!si->metafree) {
@@ -2431,19 +2433,6 @@ static int extract_extradata(FFFormatContext *si, AVStream *st, const AVPacket *
     return 0;
 }
 
-static int add_coded_side_data(AVStream *st, AVCodecContext *avctx)
-{
-    for (int i = 0; i < avctx->nb_coded_side_data; i++) {
-        const AVPacketSideData *const sd_src = &avctx->coded_side_data[i];
-        uint8_t *dst_data;
-        dst_data = av_stream_new_side_data(st, sd_src->type, sd_src->size);
-        if (!dst_data)
-            return AVERROR(ENOMEM);
-        memcpy(dst_data, sd_src->data, sd_src->size);
-    }
-    return 0;
-}
-
 int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
 {
     FFFormatContext *const si = ffformatcontext(ic);
@@ -2971,9 +2960,6 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
             ret = avcodec_parameters_from_context(st->codecpar, sti->avctx);
             if (ret < 0)
                 goto find_stream_info_err;
-            ret = add_coded_side_data(st, sti->avctx);
-            if (ret < 0)
-                goto find_stream_info_err;
 
             if (sti->avctx->rc_buffer_size > 0 || sti->avctx->rc_max_rate > 0 ||
                 sti->avctx->rc_min_rate) {
@@ -2986,14 +2972,41 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
                         props->min_bitrate = sti->avctx->rc_min_rate;
                     if (sti->avctx->rc_max_rate > 0)
                         props->max_bitrate = sti->avctx->rc_max_rate;
-                    if (av_stream_add_side_data(st, AV_PKT_DATA_CPB_PROPERTIES,
-                                                (uint8_t *)props, cpb_size))
+                    if (!av_packet_side_data_add(&st->codecpar->coded_side_data,
+                                                 &st->codecpar->nb_coded_side_data,
+                                                 AV_PKT_DATA_CPB_PROPERTIES,
+                                                 (uint8_t *)props, cpb_size, 0))
                         av_free(props);
                 }
             }
         }
 
         sti->avctx_inited = 0;
+#if FF_API_AVSTREAM_SIDE_DATA
+FF_DISABLE_DEPRECATION_WARNINGS
+        if (st->codecpar->nb_coded_side_data > 0) {
+            av_assert0(!st->side_data && !st->nb_side_data);
+            st->side_data = av_calloc(st->codecpar->nb_coded_side_data, sizeof(*st->side_data));
+            if (!st->side_data) {
+                ret = AVERROR(ENOMEM);
+                goto find_stream_info_err;
+            }
+
+            for (int j = 0; j < st->codecpar->nb_coded_side_data; j++) {
+                uint8_t *data = av_memdup(st->codecpar->coded_side_data[j].data,
+                                          st->codecpar->coded_side_data[j].size);
+                if (!data) {
+                    ret = AVERROR(ENOMEM);
+                    goto find_stream_info_err;
+                }
+                st->side_data[j].type = st->codecpar->coded_side_data[j].type;
+                st->side_data[j].size = st->codecpar->coded_side_data[j].size;
+                st->side_data[j].data = data;
+                st->nb_side_data++;
+            }
+        }
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
     }
 
 find_stream_info_err:
diff --git a/libavformat/dovi_isom.c b/libavformat/dovi_isom.c
index c8fdf566e4..ef7ab1b6d9 100644
--- a/libavformat/dovi_isom.c
+++ b/libavformat/dovi_isom.c
@@ -34,7 +34,6 @@ int ff_isom_parse_dvcc_dvvc(void *logctx, AVStream *st,
     uint32_t buf;
     AVDOVIDecoderConfigurationRecord *dovi;
     size_t dovi_size;
-    int ret;
 
     if (size > (1 << 30) || size < 4)
         return AVERROR_INVALIDDATA;
@@ -64,11 +63,10 @@ int ff_isom_parse_dvcc_dvvc(void *logctx, AVStream *st,
         dovi->dv_bl_signal_compatibility_id = 0;
     }
 
-    ret = av_stream_add_side_data(st, AV_PKT_DATA_DOVI_CONF,
-                                  (uint8_t *)dovi, dovi_size);
-    if (ret < 0) {
+    if (!av_packet_side_data_add(&st->codecpar->coded_side_data, &st->codecpar->nb_coded_side_data,
+                                 AV_PKT_DATA_DOVI_CONF, (uint8_t *)dovi, dovi_size, 0)) {
         av_free(dovi);
-        return ret;
+        return AVERROR(ENOMEM);
     }
 
     av_log(logctx, AV_LOG_TRACE, "DOVI in dvcC/dvvC/dvwC box, version: %d.%d, profile: %d, level: %d, "
diff --git a/libavformat/dump.c b/libavformat/dump.c
index d31e4c2ec6..c0868a1bb3 100644
--- a/libavformat/dump.c
+++ b/libavformat/dump.c
@@ -431,11 +431,11 @@ static void dump_sidedata(void *ctx, const AVStream *st, const char *indent)
 {
     int i;
 
-    if (st->nb_side_data)
+    if (st->codecpar->nb_coded_side_data)
         av_log(ctx, AV_LOG_INFO, "%sSide data:\n", indent);
 
-    for (i = 0; i < st->nb_side_data; i++) {
-        const AVPacketSideData *sd = &st->side_data[i];
+    for (i = 0; i < st->codecpar->nb_coded_side_data; i++) {
+        const AVPacketSideData *sd = &st->codecpar->coded_side_data[i];
         av_log(ctx, AV_LOG_INFO, "%s  ", indent);
 
         switch (sd->type) {
diff --git a/libavformat/hls.c b/libavformat/hls.c
index 332a5a15bb..f5f549b24d 100644
--- a/libavformat/hls.c
+++ b/libavformat/hls.c
@@ -1852,17 +1852,6 @@ static int set_stream_info_from_input_stream(AVStream *st, struct playlist *pls,
 
     av_dict_copy(&st->metadata, ist->metadata, 0);
 
-    // copy side data
-    for (int i = 0; i < ist->nb_side_data; i++) {
-        const AVPacketSideData *sd_src = &ist->side_data[i];
-        uint8_t *dst_data;
-
-        dst_data = av_stream_new_side_data(st, sd_src->type, sd_src->size);
-        if (!dst_data)
-            return AVERROR(ENOMEM);
-        memcpy(dst_data, sd_src->data, sd_src->size);
-    }
-
     ffstream(st)->need_context_update = 1;
 
     return 0;
diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c
index 999fc0de75..4ef84c05c1 100644
--- a/libavformat/hlsenc.c
+++ b/libavformat/hlsenc.c
@@ -1353,16 +1353,17 @@ static const char* get_relative_url(const char *master_url, const char *media_ur
 
 static int64_t get_stream_bit_rate(AVStream *stream)
 {
-    AVCPBProperties *props = (AVCPBProperties*)av_stream_get_side_data(
-        stream,
-        AV_PKT_DATA_CPB_PROPERTIES,
-        NULL
+    const AVPacketSideData *sd = av_packet_side_data_get(
+        stream->codecpar->coded_side_data, stream->codecpar->nb_coded_side_data,
+        AV_PKT_DATA_CPB_PROPERTIES
     );
 
     if (stream->codecpar->bit_rate)
         return stream->codecpar->bit_rate;
-    else if (props)
+    else if (sd) {
+        AVCPBProperties *props = (AVCPBProperties*)sd->data;
         return props->max_bitrate;
+    }
 
     return 0;
 }
diff --git a/libavformat/internal.h b/libavformat/internal.h
index 901a8b51c6..7702986c9c 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -147,7 +147,9 @@ typedef struct FFFormatContext {
     int missing_ts_warning;
 #endif
 
+#if FF_API_AVSTREAM_SIDE_DATA
     int inject_global_side_data;
+#endif
 
     int avoid_negative_ts_use_pts;
 
@@ -356,10 +358,12 @@ typedef struct FFStream {
     uint8_t dts_ordered;
     uint8_t dts_misordered;
 
+#if FF_API_AVSTREAM_SIDE_DATA
     /**
      * Internal data to inject global side data
      */
     int inject_global_side_data;
+#endif
 
     /**
      * display aspect ratio (0 if unknown)
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 941c0bcdc9..c8acf91970 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -2249,7 +2249,6 @@ static int mkv_stereo3d_conv(AVStream *st, MatroskaVideoStereoModeType stereo_mo
         STEREOMODE_STEREO3D_MAPPING(STEREO_MODE_CONV, NOTHING)
     };
     AVStereo3D *stereo;
-    int ret;
 
     stereo = av_stereo3d_alloc();
     if (!stereo)
@@ -2258,11 +2257,10 @@ static int mkv_stereo3d_conv(AVStream *st, MatroskaVideoStereoModeType stereo_mo
     stereo->type  = stereo_mode_conv[stereo_mode].type;
     stereo->flags = stereo_mode_conv[stereo_mode].flags;
 
-    ret = av_stream_add_side_data(st, AV_PKT_DATA_STEREO3D, (uint8_t *)stereo,
-                                  sizeof(*stereo));
-    if (ret < 0) {
+    if (!av_packet_side_data_add(&st->codecpar->coded_side_data, &st->codecpar->nb_coded_side_data,
+                                 AV_PKT_DATA_STEREO3D, stereo, sizeof(*stereo), 0)) {
         av_freep(&stereo);
-        return ret;
+        return AVERROR(ENOMEM);
     }
 
     return 0;
@@ -2309,28 +2307,27 @@ static int mkv_parse_video_color(AVStream *st, const MatroskaTrack *track) {
     }
     if (color->max_cll && color->max_fall) {
         size_t size = 0;
-        int ret;
         AVContentLightMetadata *metadata = av_content_light_metadata_alloc(&size);
         if (!metadata)
             return AVERROR(ENOMEM);
-        ret = av_stream_add_side_data(st, AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
-                                      (uint8_t *)metadata, size);
-        if (ret < 0) {
+        if (!av_packet_side_data_add(&st->codecpar->coded_side_data, &st->codecpar->nb_coded_side_data,
+                                     AV_PKT_DATA_CONTENT_LIGHT_LEVEL, metadata, size, 0)) {
             av_freep(&metadata);
-            return ret;
+            return AVERROR(ENOMEM);
         }
         metadata->MaxCLL  = color->max_cll;
         metadata->MaxFALL = color->max_fall;
     }
 
     if (has_mastering_primaries || has_mastering_luminance) {
-        AVMasteringDisplayMetadata *metadata =
-            (AVMasteringDisplayMetadata*) av_stream_new_side_data(
-                st, AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
-                sizeof(AVMasteringDisplayMetadata));
-        if (!metadata) {
+        AVMasteringDisplayMetadata *metadata;
+        AVPacketSideData *sd = av_packet_side_data_new(&st->codecpar->coded_side_data,
+                                                       &st->codecpar->nb_coded_side_data,
+                                                       AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
+                                                       sizeof(AVMasteringDisplayMetadata), 0);
+        if (!sd)
             return AVERROR(ENOMEM);
-        }
+        metadata = (AVMasteringDisplayMetadata*)sd->data;
         memset(metadata, 0, sizeof(AVMasteringDisplayMetadata));
         if (has_mastering_primaries) {
             metadata->display_primaries[0][0] = av_d2q(mastering_meta->r_x, INT_MAX);
@@ -2356,6 +2353,7 @@ static int mkv_create_display_matrix(AVStream *st,
                                      const MatroskaTrackVideoProjection *proj,
                                      void *logctx)
 {
+    AVPacketSideData *sd;
     double pitch = proj->pitch, yaw = proj->yaw, roll = proj->roll;
     int32_t *matrix;
     int hflip;
@@ -2372,10 +2370,13 @@ static int mkv_create_display_matrix(AVStream *st,
                st->index, yaw, pitch, roll);
         return 0;
     }
-    matrix = (int32_t*)av_stream_new_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
-                                               9 * sizeof(*matrix));
-    if (!matrix)
+    sd = av_packet_side_data_new(&st->codecpar->coded_side_data,
+                                 &st->codecpar->nb_coded_side_data,
+                                 AV_PKT_DATA_DISPLAYMATRIX,
+                                 9 * sizeof(*matrix), 0);
+    if (!sd)
         return AVERROR(ENOMEM);
+    matrix = (int32_t*)sd->data;
 
     hflip = yaw != 0.0;
     /* ProjectionPoseRoll is in the counter-clockwise direction
@@ -2400,7 +2401,6 @@ static int mkv_parse_video_projection(AVStream *st, const MatroskaTrack *track,
     size_t spherical_size;
     uint32_t l = 0, t = 0, r = 0, b = 0;
     uint32_t padding = 0;
-    int ret;
 
     if (mkv_projection->private.size && priv_data[0] != 0) {
         av_log(logctx, AV_LOG_WARNING, "Unknown spherical metadata\n");
@@ -2476,11 +2476,10 @@ static int mkv_parse_video_projection(AVStream *st, const MatroskaTrack *track,
     spherical->bound_right  = r;
     spherical->bound_bottom = b;
 
-    ret = av_stream_add_side_data(st, AV_PKT_DATA_SPHERICAL, (uint8_t *)spherical,
-                                  spherical_size);
-    if (ret < 0) {
+    if (!av_packet_side_data_add(&st->codecpar->coded_side_data, &st->codecpar->nb_coded_side_data,
+                                 AV_PKT_DATA_SPHERICAL, spherical, spherical_size, 0)) {
         av_freep(&spherical);
-        return ret;
+        return AVERROR(ENOMEM);
     }
 
     return 0;
diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index aac205d066..1457a6890c 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -1330,7 +1330,7 @@ fail:
 static void mkv_write_video_color(EbmlWriter *writer, const AVStream *st,
                                   const AVCodecParameters *par)
 {
-    const void *side_data;
+    const AVPacketSideData *side_data;
 
     ebml_writer_open_master(writer, MATROSKA_ID_VIDEOCOLOR);
 
@@ -1364,20 +1364,20 @@ static void mkv_write_video_color(EbmlWriter *writer, const AVStream *st,
                              (ypos >> 7) + 1);
     }
 
-    side_data = av_stream_get_side_data(st, AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
-                                        NULL);
+    side_data = av_packet_side_data_get(st->codecpar->coded_side_data, st->codecpar->nb_coded_side_data,
+                                        AV_PKT_DATA_CONTENT_LIGHT_LEVEL);
     if (side_data) {
-        const AVContentLightMetadata *metadata = side_data;
+        const AVContentLightMetadata *metadata = (AVContentLightMetadata *)side_data->data;
         ebml_writer_add_uint(writer, MATROSKA_ID_VIDEOCOLORMAXCLL,
                              metadata->MaxCLL);
         ebml_writer_add_uint(writer, MATROSKA_ID_VIDEOCOLORMAXFALL,
                              metadata->MaxFALL);
     }
 
-    side_data = av_stream_get_side_data(st, AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
-                                        NULL);
+    side_data = av_packet_side_data_get(st->codecpar->coded_side_data, st->codecpar->nb_coded_side_data,
+                                        AV_PKT_DATA_MASTERING_DISPLAY_METADATA);
     if (side_data) {
-        const AVMasteringDisplayMetadata *metadata = side_data;
+        const AVMasteringDisplayMetadata *metadata = (AVMasteringDisplayMetadata *)side_data->data;
         ebml_writer_open_master(writer, MATROSKA_ID_VIDEOCOLORMASTERINGMETA);
         if (metadata->has_primaries) {
             ebml_writer_add_float(writer, MATROSKA_ID_VIDEOCOLOR_RX,
@@ -1413,12 +1413,16 @@ static void mkv_write_video_color(EbmlWriter *writer, const AVStream *st,
 static void mkv_handle_rotation(void *logctx, const AVStream *st,
                                 double *yaw, double *roll)
 {
-    const int32_t *matrix =
-        (const int32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX, NULL);
+    const int32_t *matrix;
+    const AVPacketSideData *side_data =
+        av_packet_side_data_get(st->codecpar->coded_side_data, st->codecpar->nb_coded_side_data,
+                                AV_PKT_DATA_DISPLAYMATRIX);
 
-    if (!matrix)
+    if (!side_data)
         return;
 
+    matrix = (int32_t *)side_data->data;
+
     /* Check whether this is an affine transformation */
     if (matrix[2] || matrix[5])
         goto ignore;
@@ -1465,13 +1469,15 @@ static int mkv_handle_spherical(void *logctx, EbmlWriter *writer,
                                 const AVStream *st, uint8_t private[],
                                 double *yaw, double *pitch, double *roll)
 {
-    const AVSphericalMapping *spherical =
-        (const AVSphericalMapping *)av_stream_get_side_data(st, AV_PKT_DATA_SPHERICAL,
-                                                            NULL);
+    const AVPacketSideData *sd = av_packet_side_data_get(st->codecpar->coded_side_data,
+                                                         st->codecpar->nb_coded_side_data,
+                                                         AV_PKT_DATA_SPHERICAL);
+    const AVSphericalMapping *spherical;
 
-    if (!spherical)
+    if (!sd)
         return 0;
 
+    spherical = (const AVSphericalMapping *)sd->data;
     if (spherical->projection != AV_SPHERICAL_EQUIRECTANGULAR      &&
         spherical->projection != AV_SPHERICAL_EQUIRECTANGULAR_TILE &&
         spherical->projection != AV_SPHERICAL_CUBEMAP) {
@@ -1631,6 +1637,7 @@ static int mkv_write_stereo_mode(AVFormatContext *s, EbmlWriter *writer,
             format = stereo_mode;
         }
     } else {
+        const AVPacketSideData *sd;
         const AVStereo3D *stereo;
         /* The following macro presumes all MATROSKA_VIDEO_STEREOMODE_TYPE_*
          * values to be in the range 0..254. */
@@ -1642,11 +1649,13 @@ static int mkv_write_stereo_mode(AVFormatContext *s, EbmlWriter *writer,
         };
         int fmt;
 
-        stereo = (const AVStereo3D*)av_stream_get_side_data(st, AV_PKT_DATA_STEREO3D,
-                                                            NULL);
-        if (!stereo)
+        sd = av_packet_side_data_get(st->codecpar->coded_side_data, st->codecpar->nb_coded_side_data,
+                                     AV_PKT_DATA_STEREO3D);
+        if (!sd)
             return 0;
 
+        stereo = (const AVStereo3D*)sd->data;
+
         /* A garbage AVStereo3D or something with no Matroska analogon. */
         if ((unsigned)stereo->type >= FF_ARRAY_ELEMS(conversion_table))
             return 0;
@@ -1684,6 +1693,7 @@ static void mkv_write_blockadditionmapping(AVFormatContext *s, const MatroskaMux
 {
 #if CONFIG_MATROSKA_MUXER
     const AVDOVIDecoderConfigurationRecord *dovi;
+    const AVPacketSideData *sd;
 
     if (IS_SEEKABLE(s->pb, mkv)) {
         track->blockadditionmapping_offset = avio_tell(pb);
@@ -1700,9 +1710,14 @@ static void mkv_write_blockadditionmapping(AVFormatContext *s, const MatroskaMux
         }
     }
 
-    dovi = (const AVDOVIDecoderConfigurationRecord *)
-           av_stream_get_side_data(st, AV_PKT_DATA_DOVI_CONF, NULL);
-    if (dovi && dovi->dv_profile <= 10) {
+    sd = av_packet_side_data_get(st->codecpar->coded_side_data, st->codecpar->nb_coded_side_data,
+                                 AV_PKT_DATA_DOVI_CONF);
+
+    if (!sd)
+        return;
+
+    dovi = (const AVDOVIDecoderConfigurationRecord *)sd->data;
+    if (dovi->dv_profile <= 10) {
         ebml_master mapping;
         uint8_t buf[ISOM_DVCC_DVVC_SIZE];
         uint32_t type;
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 294c864fbd..13ddedcac1 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -799,6 +799,7 @@ static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 {
     AVStream *st;
+    AVPacketSideData *sd;
     enum AVAudioServiceType *ast;
     int ac3info, acmod, lfeon, bsmod;
     uint64_t mask;
@@ -807,11 +808,14 @@ static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         return 0;
     st = c->fc->streams[c->fc->nb_streams-1];
 
-    ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
-                                                            sizeof(*ast));
-    if (!ast)
+    sd = av_packet_side_data_new(&st->codecpar->coded_side_data,
+                                 &st->codecpar->nb_coded_side_data,
+                                 AV_PKT_DATA_AUDIO_SERVICE_TYPE,
+                                 sizeof(*ast), 0);
+    if (!sd)
         return AVERROR(ENOMEM);
 
+    ast = (enum AVAudioServiceType*)sd->data;
     ac3info = avio_rb24(pb);
     bsmod = (ac3info >> 14) & 0x7;
     acmod = (ac3info >> 11) & 0x7;
@@ -833,6 +837,7 @@ static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 {
     AVStream *st;
+    AVPacketSideData *sd;
     enum AVAudioServiceType *ast;
     int eac3info, acmod, lfeon, bsmod;
     uint64_t mask;
@@ -841,11 +846,15 @@ static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         return 0;
     st = c->fc->streams[c->fc->nb_streams-1];
 
-    ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
-                                                            sizeof(*ast));
-    if (!ast)
+    sd = av_packet_side_data_new(&st->codecpar->coded_side_data,
+                                 &st->codecpar->nb_coded_side_data,
+                                 AV_PKT_DATA_AUDIO_SERVICE_TYPE,
+                                 sizeof(*ast), 0);
+    if (!sd)
         return AVERROR(ENOMEM);
 
+    ast = (enum AVAudioServiceType*)sd->data;
+
     /* No need to parse fields for additional independent substreams and its
      * associated dependent substreams since libavcodec's E-AC-3 decoder
      * does not support them yet. */
@@ -1747,7 +1756,6 @@ static int mov_read_pcmc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 {
     AVStream *st;
-    uint8_t *icc_profile;
     char color_parameter_type[5] = { 0 };
     uint16_t color_primaries, color_trc, color_matrix;
     int ret;
@@ -1768,10 +1776,13 @@ static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     }
 
     if (!strncmp(color_parameter_type, "prof", 4)) {
-        icc_profile = av_stream_new_side_data(st, AV_PKT_DATA_ICC_PROFILE, atom.size - 4);
-        if (!icc_profile)
+        AVPacketSideData *sd = av_packet_side_data_new(&st->codecpar->coded_side_data,
+                                                       &st->codecpar->nb_coded_side_data,
+                                                       AV_PKT_DATA_ICC_PROFILE,
+                                                       atom.size - 4, 0);
+        if (!sd)
             return AVERROR(ENOMEM);
-        ret = ffio_read_size(pb, icc_profile, atom.size - 4);
+        ret = ffio_read_size(pb, sd->data, atom.size - 4);
         if (ret < 0)
             return ret;
     } else {
@@ -6841,8 +6852,9 @@ static int mov_read_pssh(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     AVEncryptionInitInfo *info, *old_init_info;
     uint8_t **key_ids;
     AVStream *st;
-    uint8_t *side_data, *extra_data, *old_side_data;
-    size_t side_data_size, old_side_data_size;
+    const AVPacketSideData *old_side_data;
+    uint8_t *side_data, *extra_data;
+    size_t side_data_size;
     int ret = 0;
     unsigned int version, kid_count, extra_data_size, alloc_size = 0;
 
@@ -6920,9 +6932,10 @@ static int mov_read_pssh(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     info->data_size = extra_data_size;
 
     // If there is existing initialization data, append to the list.
-    old_side_data = av_stream_get_side_data(st, AV_PKT_DATA_ENCRYPTION_INIT_INFO, &old_side_data_size);
+    old_side_data = av_packet_side_data_get(st->codecpar->coded_side_data, st->codecpar->nb_coded_side_data,
+                                            AV_PKT_DATA_ENCRYPTION_INIT_INFO);
     if (old_side_data) {
-        old_init_info = av_encryption_init_info_get_side_data(old_side_data, old_side_data_size);
+        old_init_info = av_encryption_init_info_get_side_data(old_side_data->data, old_side_data->size);
         if (old_init_info) {
             // Append to the end of the list.
             for (AVEncryptionInitInfo *cur = old_init_info;; cur = cur->next) {
@@ -6944,9 +6957,10 @@ static int mov_read_pssh(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         ret = AVERROR(ENOMEM);
         goto finish;
     }
-    ret = av_stream_add_side_data(st, AV_PKT_DATA_ENCRYPTION_INIT_INFO,
-                                  side_data, side_data_size);
-    if (ret < 0)
+    if (!av_packet_side_data_add(&st->codecpar->coded_side_data,
+                                 &st->codecpar->nb_coded_side_data,
+                                 AV_PKT_DATA_ENCRYPTION_INIT_INFO,
+                                 side_data, side_data_size, 0))
         av_free(side_data);
 
 finish:
@@ -8726,46 +8740,42 @@ static int mov_read_header(AVFormatContext *s)
             break;
         case AVMEDIA_TYPE_VIDEO:
             if (sc->display_matrix) {
-                err = av_stream_add_side_data(st, AV_PKT_DATA_DISPLAYMATRIX, (uint8_t*)sc->display_matrix,
-                                              sizeof(int32_t) * 9);
-                if (err < 0)
-                    return err;
+                if (!av_packet_side_data_add(&st->codecpar->coded_side_data, &st->codecpar->nb_coded_side_data,
+                                             AV_PKT_DATA_DISPLAYMATRIX,
+                                             (uint8_t*)sc->display_matrix, sizeof(int32_t) * 9, 0))
+                    return AVERROR(ENOMEM);
 
                 sc->display_matrix = NULL;
             }
             if (sc->stereo3d) {
-                err = av_stream_add_side_data(st, AV_PKT_DATA_STEREO3D,
-                                              (uint8_t *)sc->stereo3d,
-                                              sizeof(*sc->stereo3d));
-                if (err < 0)
-                    return err;
+                if (!av_packet_side_data_add(&st->codecpar->coded_side_data, &st->codecpar->nb_coded_side_data,
+                                             AV_PKT_DATA_STEREO3D,
+                                             (uint8_t *)sc->stereo3d, sizeof(*sc->stereo3d), 0))
+                    return AVERROR(ENOMEM);
 
                 sc->stereo3d = NULL;
             }
             if (sc->spherical) {
-                err = av_stream_add_side_data(st, AV_PKT_DATA_SPHERICAL,
-                                              (uint8_t *)sc->spherical,
-                                              sc->spherical_size);
-                if (err < 0)
-                    return err;
+                if (!av_packet_side_data_add(&st->codecpar->coded_side_data, &st->codecpar->nb_coded_side_data,
+                                             AV_PKT_DATA_SPHERICAL,
+                                                 (uint8_t *)sc->spherical, sc->spherical_size, 0))
+                    return AVERROR(ENOMEM);
 
                 sc->spherical = NULL;
             }
             if (sc->mastering) {
-                err = av_stream_add_side_data(st, AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
-                                              (uint8_t *)sc->mastering,
-                                              sizeof(*sc->mastering));
-                if (err < 0)
-                    return err;
+                if (!av_packet_side_data_add(&st->codecpar->coded_side_data, &st->codecpar->nb_coded_side_data,
+                                             AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
+                                             (uint8_t *)sc->mastering, sizeof(*sc->mastering), 0))
+                    return AVERROR(ENOMEM);
 
                 sc->mastering = NULL;
             }
             if (sc->coll) {
-                err = av_stream_add_side_data(st, AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
-                                              (uint8_t *)sc->coll,
-                                              sc->coll_size);
-                if (err < 0)
-                    return err;
+                if (!av_packet_side_data_add(&st->codecpar->coded_side_data, &st->codecpar->nb_coded_side_data,
+                                             AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
+                                             (uint8_t *)sc->coll, sc->coll_size, 0))
+                    return AVERROR(ENOMEM);
 
                 sc->coll = NULL;
             }
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index a394ff8ddf..e39f1ac987 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -672,11 +672,11 @@ struct mpeg4_bit_rate_values {
 
 static struct mpeg4_bit_rate_values calculate_mpeg4_bit_rates(MOVTrack *track)
 {
-    AVCPBProperties *props = track->st ?
-        (AVCPBProperties*)av_stream_get_side_data(track->st,
-                                                  AV_PKT_DATA_CPB_PROPERTIES,
-                                                  NULL) :
-        NULL;
+    const AVPacketSideData *sd = track->st ?
+        av_packet_side_data_get(track->st->codecpar->coded_side_data,
+                                track->st->codecpar->nb_coded_side_data,
+                                AV_PKT_DATA_CPB_PROPERTIES) : NULL;
+    AVCPBProperties *props = sd ? (AVCPBProperties *)sd->data : NULL;
     struct mpeg4_bit_rate_values bit_rates = { 0 };
 
     bit_rates.avg_bit_rate = compute_avg_bitrate(track);
@@ -2129,18 +2129,17 @@ static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track, int prefer_icc)
     // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
     // Ref (MP4): ISO/IEC 14496-12:2012
 
-    const uint8_t *icc_profile;
-    size_t icc_profile_size;
-
     if (prefer_icc) {
-        icc_profile = av_stream_get_side_data(track->st, AV_PKT_DATA_ICC_PROFILE, &icc_profile_size);
+        const AVPacketSideData *sd = av_packet_side_data_get(track->st->codecpar->coded_side_data,
+                                                             track->st->codecpar->nb_coded_side_data,
+                                                             AV_PKT_DATA_ICC_PROFILE);
 
-        if (icc_profile) {
-            avio_wb32(pb, 12 + icc_profile_size);
+        if (sd) {
+            avio_wb32(pb, 12 + sd->size);
             ffio_wfourcc(pb, "colr");
             ffio_wfourcc(pb, "prof");
-            avio_write(pb, icc_profile, icc_profile_size);
-            return 12 + icc_profile_size;
+            avio_write(pb, sd->data, sd->size);
+            return 12 + sd->size;
         }
         else {
             av_log(NULL, AV_LOG_INFO, "no ICC profile found, will write nclx/nclc colour info instead\n");
@@ -2173,14 +2172,16 @@ static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track, int prefer_icc)
 
 static int mov_write_clli_tag(AVIOContext *pb, MOVTrack *track)
 {
-    const uint8_t *side_data;
+    const AVPacketSideData *side_data;
     const AVContentLightMetadata *content_light_metadata;
 
-    side_data = av_stream_get_side_data(track->st, AV_PKT_DATA_CONTENT_LIGHT_LEVEL, NULL);
+    side_data = av_packet_side_data_get(track->st->codecpar->coded_side_data,
+                                        track->st->codecpar->nb_coded_side_data,
+                                        AV_PKT_DATA_CONTENT_LIGHT_LEVEL);
     if (!side_data) {
         return 0;
     }
-    content_light_metadata = (const AVContentLightMetadata*)side_data;
+    content_light_metadata = (const AVContentLightMetadata*)side_data->data;
 
     avio_wb32(pb, 12); // size
     ffio_wfourcc(pb, "clli");
@@ -2198,11 +2199,14 @@ static int mov_write_mdcv_tag(AVIOContext *pb, MOVTrack *track)
 {
     const int chroma_den = 50000;
     const int luma_den = 10000;
-    const uint8_t *side_data;
-    const AVMasteringDisplayMetadata *metadata;
-
-    side_data = av_stream_get_side_data(track->st, AV_PKT_DATA_MASTERING_DISPLAY_METADATA, NULL);
-    metadata = (const AVMasteringDisplayMetadata*)side_data;
+    const AVPacketSideData *side_data;
+    const AVMasteringDisplayMetadata *metadata = NULL;
+
+    side_data = av_packet_side_data_get(track->st->codecpar->coded_side_data,
+                                        track->st->codecpar->nb_coded_side_data,
+                                        AV_PKT_DATA_MASTERING_DISPLAY_METADATA);
+    if (side_data)
+        metadata = (const AVMasteringDisplayMetadata*)side_data->data;
     if (!metadata || !metadata->has_primaries || !metadata->has_luminance) {
         return 0;
     }
@@ -2421,7 +2425,8 @@ static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContex
                              track->par->color_trc != AVCOL_TRC_UNSPECIFIED &&
                              track->par->color_space != AVCOL_SPC_UNSPECIFIED;
         if (has_color_info || mov->flags & FF_MOV_FLAG_WRITE_COLR ||
-            av_stream_get_side_data(track->st, AV_PKT_DATA_ICC_PROFILE, NULL)) {
+            av_packet_side_data_get(track->st->codecpar->coded_side_data,  track->st->codecpar->nb_coded_side_data,
+                                    AV_PKT_DATA_ICC_PROFILE)) {
             int prefer_icc = mov->flags & FF_MOV_FLAG_PREFER_ICC || !has_color_info;
             mov_write_colr_tag(pb, track, prefer_icc);
         }
@@ -2435,17 +2440,22 @@ static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContex
     }
 
     if (track->mode == MODE_MP4 && mov->fc->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
-        AVStereo3D* stereo_3d = (AVStereo3D*) av_stream_get_side_data(track->st, AV_PKT_DATA_STEREO3D, NULL);
-        AVSphericalMapping* spherical_mapping = (AVSphericalMapping*)av_stream_get_side_data(track->st, AV_PKT_DATA_SPHERICAL, NULL);
-        AVDOVIDecoderConfigurationRecord *dovi = (AVDOVIDecoderConfigurationRecord *)
-                                                 av_stream_get_side_data(track->st, AV_PKT_DATA_DOVI_CONF, NULL);
+        const AVPacketSideData *stereo_3d = av_packet_side_data_get(track->st->codecpar->coded_side_data,
+                                                                    track->st->codecpar->nb_coded_side_data,
+                                                                    AV_PKT_DATA_STEREO3D);
+        const AVPacketSideData *spherical_mapping = av_packet_side_data_get(track->st->codecpar->coded_side_data,
+                                                                            track->st->codecpar->nb_coded_side_data,
+                                                                            AV_PKT_DATA_SPHERICAL);
+        const AVPacketSideData *dovi = av_packet_side_data_get(track->st->codecpar->coded_side_data,
+                                                               track->st->codecpar->nb_coded_side_data,
+                                                               AV_PKT_DATA_DOVI_CONF);
 
         if (stereo_3d)
-            mov_write_st3d_tag(s, pb, stereo_3d);
+            mov_write_st3d_tag(s, pb, (AVStereo3D*)stereo_3d->data);
         if (spherical_mapping)
-            mov_write_sv3d_tag(mov->fc, pb, spherical_mapping);
+            mov_write_sv3d_tag(mov->fc, pb, (AVSphericalMapping*)spherical_mapping->data);
         if (dovi)
-            mov_write_dvcc_dvvc_tag(s, pb, dovi);
+            mov_write_dvcc_dvvc_tag(s, pb, (AVDOVIDecoderConfigurationRecord *)dovi->data);
     }
 
     if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num) {
@@ -3392,7 +3402,6 @@ static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
     int group   = 0;
 
     uint32_t *display_matrix = NULL;
-    size_t display_matrix_size;
     int       i;
 
     if (mov->mode == MODE_AVIF)
@@ -3402,15 +3411,17 @@ static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
             duration *= mov->avif_loop_count;
 
     if (st) {
+        const AVPacketSideData *sd;
         if (mov->per_stream_grouping)
             group = st->index;
         else
             group = st->codecpar->codec_type;
 
-        display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
-                                                            &display_matrix_size);
-        if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
-            display_matrix = NULL;
+        sd = av_packet_side_data_get(st->codecpar->coded_side_data,
+                                     st->codecpar->nb_coded_side_data,
+                                     AV_PKT_DATA_DISPLAYMATRIX);
+        if (sd && sd->size == 9 * sizeof(*display_matrix))
+            display_matrix = (uint32_t *)sd->data;
     }
 
     if (track->flags & MOV_TRACK_ENABLED)
@@ -4608,12 +4619,11 @@ static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
             track->tref_tag = MKTAG('h','i','n','t');
             track->tref_id = mov->tracks[track->src_track].track_id;
         } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) {
-            size_t size;
-            int *fallback;
-            fallback = (int*)av_stream_get_side_data(track->st,
-                                                     AV_PKT_DATA_FALLBACK_TRACK,
-                                                     &size);
-            if (fallback != NULL && size == sizeof(int)) {
+            const AVPacketSideData *sd = av_packet_side_data_get(track->st->codecpar->coded_side_data,
+                                                                 track->st->codecpar->nb_coded_side_data,
+                                                                 AV_PKT_DATA_FALLBACK_TRACK );
+            if (sd && sd->size == sizeof(int)) {
+                int *fallback = (int *)sd->data;
                 if (*fallback >= 0 && *fallback < mov->nb_streams) {
                     track->tref_tag = MKTAG('f','a','l','l');
                     track->tref_id = mov->tracks[*fallback].track_id;
@@ -5446,7 +5456,9 @@ static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
         if (st->codecpar->codec_id == AV_CODEC_ID_AC3 ||
             st->codecpar->codec_id == AV_CODEC_ID_EAC3 ||
             st->codecpar->codec_id == AV_CODEC_ID_TRUEHD ||
-            av_stream_get_side_data(st, AV_PKT_DATA_DOVI_CONF, NULL))
+            av_packet_side_data_get(st->codecpar->coded_side_data,
+                                    st->codecpar->nb_coded_side_data,
+                                    AV_PKT_DATA_DOVI_CONF))
             has_dolby = 1;
     }
 
diff --git a/libavformat/mp3enc.c b/libavformat/mp3enc.c
index 5e81f72a59..cb250a46ca 100644
--- a/libavformat/mp3enc.c
+++ b/libavformat/mp3enc.c
@@ -400,10 +400,10 @@ static int mp3_queue_flush(AVFormatContext *s)
 static void mp3_update_xing(AVFormatContext *s)
 {
     MP3Context  *mp3 = s->priv_data;
+    const AVPacketSideData *sd;
     AVReplayGain *rg;
     uint16_t tag_crc;
     uint8_t *toc;
-    size_t rg_size;
     int i;
     int64_t old_pos = avio_tell(s->pb);
 
@@ -423,11 +423,13 @@ static void mp3_update_xing(AVFormatContext *s)
     }
 
     /* write replaygain */
-    rg = (AVReplayGain*)av_stream_get_side_data(s->streams[0], AV_PKT_DATA_REPLAYGAIN,
-                                                &rg_size);
-    if (rg && rg_size >= sizeof(*rg)) {
+    sd = av_packet_side_data_get(s->streams[0]->codecpar->coded_side_data,
+                                 s->streams[0]->codecpar->nb_coded_side_data,
+                                 AV_PKT_DATA_REPLAYGAIN);
+    if (sd && sd->size >= sizeof(*rg)) {
         uint16_t val;
 
+        rg = (AVReplayGain *)sd->data;
         AV_WB32(mp3->xing_frame + mp3->xing_offset + 131,
                 av_rescale(rg->track_peak, 1 << 23, 100000));
 
diff --git a/libavformat/mpegenc.c b/libavformat/mpegenc.c
index c06e308296..12d9fb33ec 100644
--- a/libavformat/mpegenc.c
+++ b/libavformat/mpegenc.c
@@ -342,8 +342,6 @@ static av_cold int mpeg_mux_init(AVFormatContext *ctx)
     lpcm_id = LPCM_ID;
 
     for (i = 0; i < ctx->nb_streams; i++) {
-        AVCPBProperties *props;
-
         st     = ctx->streams[i];
         stream = av_mallocz(sizeof(StreamInfo));
         if (!stream)
@@ -430,13 +428,19 @@ static av_cold int mpeg_mux_init(AVFormatContext *ctx)
             stream->max_buffer_size = 4 * 1024;
             s->audio_bound++;
             break;
-        case AVMEDIA_TYPE_VIDEO:
+        case AVMEDIA_TYPE_VIDEO: {
+            const AVPacketSideData *sd;
+            AVCPBProperties *props = NULL;
             if (st->codecpar->codec_id == AV_CODEC_ID_H264)
                 stream->id = h264_id++;
             else
                 stream->id = mpv_id++;
 
-            props = (AVCPBProperties*)av_stream_get_side_data(st, AV_PKT_DATA_CPB_PROPERTIES, NULL);
+            sd = av_packet_side_data_get(st->codecpar->coded_side_data,
+                                         st->codecpar->nb_coded_side_data,
+                                         AV_PKT_DATA_CPB_PROPERTIES);
+            if (sd)
+                props = (AVCPBProperties*)sd->data;
             if (props && props->buffer_size)
                 stream->max_buffer_size = 6 * 1024 + props->buffer_size / 8;
             else {
@@ -453,6 +457,7 @@ static av_cold int mpeg_mux_init(AVFormatContext *ctx)
             }
             s->video_bound++;
             break;
+        }
         case AVMEDIA_TYPE_SUBTITLE:
             stream->id              = mps_id++;
             stream->max_buffer_size = 16 * 1024;
@@ -470,12 +475,17 @@ static av_cold int mpeg_mux_init(AVFormatContext *ctx)
     audio_bitrate = 0;
     video_bitrate = 0;
     for (i = 0; i < ctx->nb_streams; i++) {
-        AVCPBProperties *props;
+        const AVPacketSideData *sd;
+        AVCPBProperties *props = NULL;
         int codec_rate;
         st     = ctx->streams[i];
         stream = (StreamInfo *)st->priv_data;
 
-        props = (AVCPBProperties*)av_stream_get_side_data(st, AV_PKT_DATA_CPB_PROPERTIES, NULL);
+        sd = av_packet_side_data_get(st->codecpar->coded_side_data,
+                                     st->codecpar->nb_coded_side_data,
+                                     AV_PKT_DATA_CPB_PROPERTIES);
+        if (sd)
+            props = (AVCPBProperties*)sd->data;
         if (props)
             codec_rate = props->max_bitrate;
         else
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index d825bf0b5d..c7fd1f5d1f 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -2187,7 +2187,6 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
             uint32_t buf;
             AVDOVIDecoderConfigurationRecord *dovi;
             size_t dovi_size;
-            int ret;
             int dependency_pid;
 
             if (desc_end - *pp < 4) // (8 + 8 + 7 + 6 + 1 + 1 + 1) / 8
@@ -2218,11 +2217,12 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
                 dovi->dv_bl_signal_compatibility_id = 0;
             }
 
-            ret = av_stream_add_side_data(st, AV_PKT_DATA_DOVI_CONF,
-                                          (uint8_t *)dovi, dovi_size);
-            if (ret < 0) {
+            if (!av_packet_side_data_add(&st->codecpar->coded_side_data,
+                                         &st->codecpar->nb_coded_side_data,
+                                         AV_PKT_DATA_DOVI_CONF,
+                                         (uint8_t *)dovi, dovi_size, 0)) {
                 av_free(dovi);
-                return ret;
+                return AVERROR(ENOMEM);
             }
 
             av_log(fc, AV_LOG_TRACE, "DOVI, version: %d.%d, profile: %d, level: %d, "
diff --git a/libavformat/mux.c b/libavformat/mux.c
index 5a1d6e41cb..c7877c5d98 100644
--- a/libavformat/mux.c
+++ b/libavformat/mux.c
@@ -279,6 +279,27 @@ FF_ENABLE_DEPRECATION_WARNINGS
             break;
         }
 
+#if FF_API_AVSTREAM_SIDE_DATA
+FF_DISABLE_DEPRECATION_WARNINGS
+        /* if the caller is using the deprecated AVStream side_data API,
+         * copy its contents to AVStream.codecpar, giving it priority
+           over existing side data in the latter */
+        for (int i = 0; i < st->nb_side_data; i++) {
+            const AVPacketSideData *sd_src = &st->side_data[i];
+            AVPacketSideData *sd_dst;
+
+            sd_dst = av_packet_side_data_new(&st->codecpar->coded_side_data,
+                                             &st->codecpar->nb_coded_side_data,
+                                             sd_src->type, sd_src->size, 0);
+            if (!sd_dst) {
+                ret = AVERROR(ENOMEM);
+                goto fail;
+            }
+            memcpy(sd_dst->data, sd_src->data, sd_src->size);
+        }
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
         desc = avcodec_descriptor_get(par->codec_id);
         if (desc && desc->props & AV_CODEC_PROP_REORDER)
             sti->reorder = 1;
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index 5fa2473e81..68939091e6 100644
--- a/libavformat/mxfdec.c
+++ b/libavformat/mxfdec.c
@@ -2587,10 +2587,13 @@ static int parse_mca_labels(MXFContext *mxf, MXFTrack *source_track, MXFDescript
 
     if (service_type != AV_AUDIO_SERVICE_TYPE_NB && service_type != AV_AUDIO_SERVICE_TYPE_MAIN && !ambigous_service_type) {
         enum AVAudioServiceType *ast;
-        uint8_t* side_data = av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE, sizeof(*ast));
+        AVPacketSideData *side_data = av_packet_side_data_new(&st->codecpar->coded_side_data,
+                                                              &st->codecpar->nb_coded_side_data,
+                                                              AV_PKT_DATA_AUDIO_SERVICE_TYPE,
+                                                              sizeof(*ast), 0);
         if (!side_data)
             return AVERROR(ENOMEM);
-        ast = (enum AVAudioServiceType*)side_data;
+        ast = (enum AVAudioServiceType*)side_data->data;
         *ast = service_type;
     }
 
@@ -2990,19 +2993,21 @@ static int mxf_parse_structural_metadata(MXFContext *mxf)
             st->codecpar->color_trc       = mxf_get_codec_ul(ff_mxf_color_trc_uls, &descriptor->color_trc_ul)->id;
             st->codecpar->color_space     = mxf_get_codec_ul(ff_mxf_color_space_uls, &descriptor->color_space_ul)->id;
             if (descriptor->mastering) {
-                ret = av_stream_add_side_data(st, AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
-                                              (uint8_t *)descriptor->mastering,
-                                              sizeof(*descriptor->mastering));
-                if (ret < 0)
+                if (!av_packet_side_data_add(&st->codecpar->coded_side_data, &st->codecpar->nb_coded_side_data,
+                                             AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
+                                             (uint8_t *)descriptor->mastering, sizeof(*descriptor->mastering), 0)) {
+                    ret = AVERROR(ENOMEM);
                     goto fail_and_free;
+                }
                 descriptor->mastering = NULL;
             }
             if (descriptor->coll) {
-                ret = av_stream_add_side_data(st, AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
-                                              (uint8_t *)descriptor->coll,
-                                              descriptor->coll_size);
-                if (ret < 0)
+                if (!av_packet_side_data_add(&st->codecpar->coded_side_data, &st->codecpar->nb_coded_side_data,
+                                             AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
+                                             (uint8_t *)descriptor->coll, descriptor->coll_size, 0)) {
+                    ret = AVERROR(ENOMEM);
                     goto fail_and_free;
+                }
                 descriptor->coll = NULL;
             }
         } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
index cb299412e2..53bd6aedca 100644
--- a/libavformat/mxfenc.c
+++ b/libavformat/mxfenc.c
@@ -556,7 +556,9 @@ static void mxf_write_primer_pack(AVFormatContext *s)
         if (s->streams[i]->codecpar->codec_id == AV_CODEC_ID_H264 && !sc->avc_intra) {
             will_have_avc_tags = 1;
         }
-        if (av_stream_get_side_data(s->streams[i], AV_PKT_DATA_MASTERING_DISPLAY_METADATA, NULL)) {
+        if (av_packet_side_data_get(s->streams[i]->codecpar->coded_side_data,
+                                    s->streams[i]->codecpar->nb_coded_side_data,
+                                    AV_PKT_DATA_MASTERING_DISPLAY_METADATA)) {
             will_have_mastering_tags = 1;
         }
         if (s->streams[i]->codecpar->codec_id == AV_CODEC_ID_FFV1) {
@@ -1158,7 +1160,7 @@ static int64_t mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID
     const MXFCodecUL *color_trc_ul;
     const MXFCodecUL *color_space_ul;
     int64_t pos = mxf_write_generic_desc(s, st, key);
-    uint8_t *side_data;
+    const AVPacketSideData *side_data;
 
     color_primaries_ul = mxf_get_codec_ul_by_id(ff_mxf_color_primaries_uls, st->codecpar->color_primaries);
     color_trc_ul       = mxf_get_codec_ul_by_id(ff_mxf_color_trc_uls, st->codecpar->color_trc);
@@ -1344,9 +1346,11 @@ static int64_t mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID
     avio_write(pb, *sc->codec_ul, 16);
 
     // Mastering Display metadata
-    side_data = av_stream_get_side_data(st, AV_PKT_DATA_MASTERING_DISPLAY_METADATA, NULL);
+    side_data = av_packet_side_data_get(st->codecpar->coded_side_data,
+                                        st->codecpar->nb_coded_side_data,
+                                        AV_PKT_DATA_MASTERING_DISPLAY_METADATA);
     if (side_data) {
-        const AVMasteringDisplayMetadata *metadata = (const AVMasteringDisplayMetadata*)side_data;
+        const AVMasteringDisplayMetadata *metadata = (const AVMasteringDisplayMetadata*)side_data->data;
         if (metadata->has_primaries) {
             mxf_write_local_tag(s, 12, 0x8301);
             avio_wb16(pb, rescale_mastering_chroma(metadata->display_primaries[0][0]));
diff --git a/libavformat/options.c b/libavformat/options.c
index 194042820e..0f79fe0fa4 100644
--- a/libavformat/options.c
+++ b/libavformat/options.c
@@ -311,7 +311,9 @@ AVStream *avformat_new_stream(AVFormatContext *s, const AVCodec *c)
 
     st->sample_aspect_ratio = (AVRational) { 0, 1 };
 
+#if FF_API_AVSTREAM_SIDE_DATA
     sti->inject_global_side_data = si->inject_global_side_data;
+#endif
 
     sti->need_context_update = 1;
 
diff --git a/libavformat/replaygain.c b/libavformat/replaygain.c
index 915bcb2382..910274c827 100644
--- a/libavformat/replaygain.c
+++ b/libavformat/replaygain.c
@@ -69,16 +69,20 @@ static int32_t parse_value(const char *value, int32_t min)
 int ff_replaygain_export_raw(AVStream *st, int32_t tg, uint32_t tp,
                              int32_t ag, uint32_t ap)
 {
+    AVPacketSideData *sd;
     AVReplayGain *replaygain;
 
     if (tg == INT32_MIN && ag == INT32_MIN)
         return 0;
 
-    replaygain = (AVReplayGain*)av_stream_new_side_data(st, AV_PKT_DATA_REPLAYGAIN,
-                                                        sizeof(*replaygain));
-    if (!replaygain)
+    sd = av_packet_side_data_new(&st->codecpar->coded_side_data,
+                                 &st->codecpar->nb_coded_side_data,
+                                 AV_PKT_DATA_REPLAYGAIN,
+                                 sizeof(*replaygain), 0);
+    if (!sd)
         return AVERROR(ENOMEM);
 
+    replaygain = (AVReplayGain*)sd->data;
     replaygain->track_gain = tg;
     replaygain->track_peak = tp;
     replaygain->album_gain = ag;
diff --git a/libavformat/seek.c b/libavformat/seek.c
index 386312cd3a..0180188595 100644
--- a/libavformat/seek.c
+++ b/libavformat/seek.c
@@ -745,8 +745,10 @@ void ff_read_frame_flush(AVFormatContext *s)
         for (int j = 0; j < MAX_REORDER_DELAY + 1; j++)
             sti->pts_buffer[j] = AV_NOPTS_VALUE;
 
+#if FF_API_AVSTREAM_SIDE_DATA
         if (si->inject_global_side_data)
             sti->inject_global_side_data = 1;
+#endif
 
         sti->skip_samples = 0;
     }
diff --git a/libavformat/version.h b/libavformat/version.h
index 14bf700274..eaf74946de 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -31,7 +31,7 @@
 
 #include "version_major.h"
 
-#define LIBAVFORMAT_VERSION_MINOR  14
+#define LIBAVFORMAT_VERSION_MINOR  15
 #define LIBAVFORMAT_VERSION_MICRO 100
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
diff --git a/libavformat/version_major.h b/libavformat/version_major.h
index ca9dccc94d..224fdacf23 100644
--- a/libavformat/version_major.h
+++ b/libavformat/version_major.h
@@ -48,6 +48,7 @@
 #define FF_API_AVIO_WRITE_NONCONST      (LIBAVFORMAT_VERSION_MAJOR < 61)
 #define FF_API_LAVF_SHORTEST            (LIBAVFORMAT_VERSION_MAJOR < 61)
 #define FF_API_ALLOW_FLUSH              (LIBAVFORMAT_VERSION_MAJOR < 61)
+#define FF_API_AVSTREAM_SIDE_DATA       (LIBAVFORMAT_VERSION_MAJOR < 61)
 
 
 #define FF_API_R_FRAME_RATE            1