diff options
| author | James Almer <[email protected]> | 2021-08-08 15:30:26 -0300 |
|---|---|---|
| committer | James Almer <[email protected]> | 2021-08-10 15:22:12 -0300 |
| commit | bf87bdd3f65569e562341843965f0e810f7a2d1f (patch) | |
| tree | eb9656fadba07610abe4b49d11d152d0021851a9 | |
| parent | de1132a89113b131831d8edde75214372c983f32 (diff) | |
avcodec/h264_slice: clear old slice POC values on parsing failure
If a slice header fails to parse, and the next one uses different Sequence and
Picture parameter sets, certain values may not be read if they are not coded,
resulting in the previous slice values being used.
Signed-off-by: James Almer <[email protected]>
| -rw-r--r-- | libavcodec/h264_slice.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c index 62f7a61aed..7c69016338 100644 --- a/libavcodec/h264_slice.c +++ b/libavcodec/h264_slice.c @@ -1831,6 +1831,8 @@ static int h264_slice_header_parse(const H264Context *h, H264SliceContext *sl, if (nal->type == H264_NAL_IDR_SLICE) get_ue_golomb_long(&sl->gb); /* idr_pic_id */ + sl->poc_lsb = 0; + sl->delta_poc_bottom = 0; if (sps->poc_type == 0) { sl->poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb); @@ -1838,6 +1840,7 @@ static int h264_slice_header_parse(const H264Context *h, H264SliceContext *sl, sl->delta_poc_bottom = get_se_golomb(&sl->gb); } + sl->delta_poc[0] = sl->delta_poc[1] = 0; if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) { sl->delta_poc[0] = get_se_golomb(&sl->gb); |