ffmpeg | branch: master | James Almer <jamr...@gmail.com> | Sat Feb 26 20:30:45 2022 -0300| [76e10325fc65b816193b4acb9bfda174262ff6ba] | committer: James Almer
avformat/av1: support av1C extradata in ff_av1_parse_seq_header() Fixes dash manifest creation for av1 streams with av1C formatted extradata. Signed-off-by: James Almer <jamr...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=76e10325fc65b816193b4acb9bfda174262ff6ba --- libavformat/av1.c | 35 ++++++++++++++++++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-) diff --git a/libavformat/av1.c b/libavformat/av1.c index 1fcfac2356..7771c09b4a 100644 --- a/libavformat/av1.c +++ b/libavformat/av1.c @@ -335,10 +335,43 @@ int ff_av1_parse_seq_header(AV1SequenceParameters *seq, const uint8_t *buf, int { int64_t obu_size; int start_pos, type, temporal_id, spatial_id; + int is_av1c; if (size <= 0) return AVERROR_INVALIDDATA; + is_av1c = !!(buf[0] & 0x80); + if (is_av1c) { + GetBitContext gb; + int ret, version = buf[0] & 0x7F; + + if (version != 1 || size < 4) + return AVERROR_INVALIDDATA; + + ret = init_get_bits8(&gb, buf, 4); + if (ret < 0) + return ret; + + memset(seq, 0, sizeof(*seq)); + + skip_bits(&gb, 8); + seq->profile = get_bits(&gb, 3); + seq->level = get_bits(&gb, 5); + seq->tier = get_bits(&gb, 1); + seq->bitdepth = get_bits(&gb, 1) * 2 + 8; + seq->bitdepth += get_bits(&gb, 1) * 2; + seq->monochrome = get_bits(&gb, 1); + seq->chroma_subsampling_x = get_bits(&gb, 1); + seq->chroma_subsampling_y = get_bits(&gb, 1); + seq->chroma_sample_position = get_bits(&gb, 2); + seq->color_primaries = AVCOL_PRI_UNSPECIFIED; + seq->transfer_characteristics = AVCOL_TRC_UNSPECIFIED; + seq->matrix_coefficients = AVCOL_SPC_UNSPECIFIED; + + size -= 4; + buf += 4; + } + while (size > 0) { int len = parse_obu_header(buf, size, &obu_size, &start_pos, &type, &temporal_id, &spatial_id); @@ -358,7 +391,7 @@ int ff_av1_parse_seq_header(AV1SequenceParameters *seq, const uint8_t *buf, int buf += len; } - return AVERROR_INVALIDDATA; + return is_av1c ? 0 : AVERROR_INVALIDDATA; } int ff_isom_write_av1c(AVIOContext *pb, const uint8_t *buf, int size) _______________________________________________ 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".
