[FFmpeg-devel] [PATCH v1] avformat/imfdec: preserve stream information

[pal at sandflow.com]

From: Pierre-Anthony Lemieux <pal at palemieux.com>

As discussed at https://trac.ffmpeg.org/ticket/9818, the IMF demuxer does not
currently preserve stream information such as language in the case of audio
streams. This patch is modeled on copy_stream_props() at avformat/concatdec.c.

---
 libavformat/imfdec.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavformat/imfdec.c b/libavformat/imfdec.c
index 71dfb26958..7aa66a06bf 100644
--- a/libavformat/imfdec.c
+++ b/libavformat/imfdec.c
@@ -580,11 +580,16 @@ static int set_context_streams_from_tracks(AVFormatContext *s)
             return AVERROR(ENOMEM);
         }
         asset_stream->id = i;
+        asset_stream->r_frame_rate = first_resource_stream->r_frame_rate;
+        asset_stream->avg_frame_rate = first_resource_stream->avg_frame_rate;
+        asset_stream->sample_aspect_ratio = first_resource_stream->sample_aspect_ratio;
         ret = avcodec_parameters_copy(asset_stream->codecpar, first_resource_stream->codecpar);
         if (ret < 0) {
             av_log(s, AV_LOG_ERROR, "Could not copy stream parameters\n");
             return ret;
         }
+        av_dict_copy(&asset_stream->metadata, first_resource_stream->metadata, 0);
+        ff_stream_side_data_copy(asset_stream, first_resource_stream);
         avpriv_set_pts_info(asset_stream,
                             first_resource_stream->pts_wrap_bits,
                             first_resource_stream->time_base.num,
-- 
2.25.1