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avcodec/h264_sei: honor the Film Grain Characteristics cancel flag

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Film Grain persistence is cancelled when it's true.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2021-07-25 23:09:00 -03:00
parent da6975f022
commit f7958d0883
1 changed files with 2 additions and 2 deletions
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4
libavcodec/h264_sei.c
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@ -420,9 +420,9 @@ static int decode_alternative_transfer(H264SEIAlternativeTransfer *h,
static int decode_film_grain_characteristics(H264SEIFilmGrainCharacteristics *h, static int decode_film_grain_characteristics(H264SEIFilmGrainCharacteristics *h,
GetBitContext *gb) GetBitContext *gb)
{ {
int film_grain_characteristics_cancel_flag = get_bits1(gb); h->present = !get_bits1(gb); // film_grain_characteristics_cancel_flag
if (!film_grain_characteristics_cancel_flag) { if (h->present) {
memset(h, 0, sizeof(*h)); memset(h, 0, sizeof(*h));
h->model_id = get_bits(gb, 8); h->model_id = get_bits(gb, 8);
h->separate_colour_description_present_flag = get_bits1(gb); h->separate_colour_description_present_flag = get_bits1(gb);