ffmpeg | branch: master | Linjie Fu <linjie...@intel.com> | Thu Feb 16 13:46:31 2023 +0800| [513d188d9bfe882580cdb8f3e9a8ed0c290875ad] | committer: Haihao Xiang
lavc/hevcdec: Fix the parsing for use_integer_mv_flag According to 7.3.6.1, use_integer_mv_flag should be parsed if motion_vector_resolution_control_idc equals to 2. If not present, it equals to motion_vector_resolution_control_idc. Signed-off-by: Linjie Fu <linjie.justin...@gmail.com> Signed-off-by: Fei Wang <fei.w.w...@intel.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=513d188d9bfe882580cdb8f3e9a8ed0c290875ad --- libavcodec/hevcdec.c | 8 ++++++++ libavcodec/hevcdec.h | 1 + 2 files changed, 9 insertions(+) diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c index f9a97ac7f5..52fa627133 100644 --- a/libavcodec/hevcdec.c +++ b/libavcodec/hevcdec.c @@ -839,6 +839,14 @@ static int hls_slice_header(HEVCContext *s) sh->max_num_merge_cand); return AVERROR_INVALIDDATA; } + + // Syntax in 7.3.6.1 + if (s->ps.sps->motion_vector_resolution_control_idc == 2) + sh->use_integer_mv_flag = get_bits1(gb); + else + // Inferred to be equal to motion_vector_resolution_control_idc if not present + sh->use_integer_mv_flag = s->ps.sps->motion_vector_resolution_control_idc; + } sh->slice_qp_delta = get_se_golomb(gb); diff --git a/libavcodec/hevcdec.h b/libavcodec/hevcdec.h index 7841ba8565..a7fc669bcb 100644 --- a/libavcodec/hevcdec.h +++ b/libavcodec/hevcdec.h @@ -305,6 +305,7 @@ typedef struct SliceHeader { int tc_offset; ///< tc_offset_div2 * 2 unsigned int max_num_merge_cand; ///< 5 - 5_minus_max_num_merge_cand + uint8_t use_integer_mv_flag; unsigned *entry_point_offset; int * offset; _______________________________________________ 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".
