ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinha...@gmail.com> | Sat Dec 5 00:39:28 2020 +0100| [c38ab8f30fde3155c2be790bf9d2ee1886e196ae] | committer: Andreas Rheinhardt
avformat/mxfenc: Discard audio until valid video has been received Normally, video packets are muxed before audio packets for mxf (there is a dedicated interleave function for this); furthermore the first (video) packet triggers writing the actual header. Yet when the first video packet fails the checks performed on it, it will be an audio packet that leads to writing the header and codec_ul (a value set based upon properties of the bitstream which necessitates actually inspecting packets) may be wrong. Therefore this commit discards audio packets until a valid video packet has been received. Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c38ab8f30fde3155c2be790bf9d2ee1886e196ae --- libavformat/mxfenc.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c index 72edaa9e30..1c668998e2 100644 --- a/libavformat/mxfenc.c +++ b/libavformat/mxfenc.c @@ -2887,6 +2887,13 @@ static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt) MXFIndexEntry ie = {0}; int err; + if (!mxf->header_written && pkt->stream_index != 0 && + s->oformat != &ff_mxf_opatom_muxer) { + av_log(s, AV_LOG_ERROR, "Received non-video packet before " + "header has been written\n"); + return AVERROR_INVALIDDATA; + } + if (!mxf->cbr_index && !mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) { if ((err = av_reallocp_array(&mxf->index_entries, mxf->edit_units_count + EDIT_UNITS_PER_BODY, sizeof(*mxf->index_entries))) < 0) { _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
