It will be used by the Matroska muxer to reserve a certain number of bytes for the CodecPrivate in case no extradata is initially available (as it is for the libaom-av1 encoder).
Signed-off-by: Andreas Rheinhardt <[email protected]> --- libavcodec/av1.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libavcodec/av1.h b/libavcodec/av1.h index 951a18ecb2..384f7cddc7 100644 --- a/libavcodec/av1.h +++ b/libavcodec/av1.h @@ -175,4 +175,10 @@ enum { AV1_RESTORE_SWITCHABLE = 3, }; +// Sequence Headers are actually unbounded because one can use +// an arbitrary number of leading zeroes when encoding via uvlc. +// The following estimate is based around using the lowest number +// of bits for uvlc encoding. +#define AV1_SANE_SEQUENCE_HEADER_MAX_BITS 3138 + #endif /* AVCODEC_AV1_H */ -- 2.34.1 _______________________________________________ ffmpeg-devel mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
