+int ff_stream_encode_params_copy(AVStream *dst, const AVStream *src)
+{
+ int ret, i;
+
+ dst->id = src->id;
+ dst->time_base = src->time_base;
+ dst->nb_frames = src->nb_frames;
+ dst->disposition = src->disposition;
+ dst->sample_aspect_ratio = src->sample_aspect_ratio;
+ dst->avg_frame_rate = src->avg_frame_rate;
+ dst->r_frame_rate = src->r_frame_rate;
+
+ av_dict_free(&dst->metadata);
+ ret = av_dict_copy(&dst->metadata, src->metadata, 0);
+ if (ret < 0)
+ return ret;
+
+ ret = avcodec_parameters_copy(dst->codecpar, src->codecpar);
+ if (ret < 0)
+ return ret;
+
+ /* Free existing side data*/
+ for (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_mallocz_array(src->nb_side_data,
+ sizeof(AVPacketSideData));
+ if (!dst->side_data)
+ return AVERROR(ENOMEM);
+ dst->nb_side_data = src->nb_side_data;
+
+ for (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;
+ }
+ }
+
+ av_freep(&dst->recommended_encoder_configuration);
+ if (src->recommended_encoder_configuration) {
+ const char *conf_str = src->recommended_encoder_configuration;
+ dst->recommended_encoder_configuration = av_strdup(conf_str);
+ if (!dst->recommended_encoder_configuration)
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+