ffmpeg | branch: master | Frank Plowman <p...@frankplowman.com> | Thu Apr 18 21:26:20 2024 +0100| [bb9e4ff355684b0325d1632b89baab96cc24dc51] | committer: James Almer
lavc/vvc: Skip enhancement layer NAL units The native VVC decoder does not yet support quality/spatial/multiview scalability. Bitstreams requiring this feature could cause crashes. Patch fixes this by skipping NAL units which are not in the base layer, warning the user while doing so. Signed-off-by: Frank Plowman <p...@frankplowman.com> Signed-off-by: James Almer <jamr...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=bb9e4ff355684b0325d1632b89baab96cc24dc51 --- libavcodec/vvc/dec.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libavcodec/vvc/dec.c b/libavcodec/vvc/dec.c index a4fc40b40a..6aeec27eaf 100644 --- a/libavcodec/vvc/dec.c +++ b/libavcodec/vvc/dec.c @@ -785,6 +785,12 @@ static int decode_nal_unit(VVCContext *s, VVCFrameContext *fc, const H2645NAL *n s->temporal_id = nal->temporal_id; + if (nal->nuh_layer_id > 0) { + avpriv_report_missing_feature(fc->log_ctx, + "Decoding of multilayer bitstreams"); + return AVERROR_PATCHWELCOME; + } + switch (unit->type) { case VVC_VPS_NUT: case VVC_SPS_NUT: _______________________________________________ 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".
