On 4/18/2024 3:59 PM, Frank Plowman wrote:
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>
---
libavcodec/vvc/dec.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavcodec/vvc/dec.c b/libavcodec/vvc/dec.c
index a4fc40b40a..5249ddf989 100644
--- a/libavcodec/vvc/dec.c
+++ b/libavcodec/vvc/dec.c
@@ -785,6 +785,11 @@ 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, "Multilayer");
A more verbose message would be better.
+ return AVERROR_PATCHWELCOME;
+ }
+
switch (unit->type) {
case VVC_VPS_NUT:
case VVC_SPS_NUT:
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
