From 33756c539b652fc6c2d10f92ab1ca71559619fa6 Mon Sep 17 00:00:00 2001 From: Niklas Haas Date: Mon, 2 Aug 2021 12:24:27 +0200 Subject: [PATCH] avcodec/h264_sei: fix H.274 film grain parsing The current code reads the wrong number of bits for `fg_model_id`, which causes all of the values downstream of this to contain corrupt values. Fixes: corrupt SEI values Fixes: 4ff73add5dbe6c319d693355be44df2e17a0b8bf Signed-off-by: Niklas Haas --- libavcodec/h264_sei.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/h264_sei.c b/libavcodec/h264_sei.c index 7797f24650..329c2ea4f2 100644 --- a/libavcodec/h264_sei.c +++ b/libavcodec/h264_sei.c @@ -424,7 +424,7 @@ static int decode_film_grain_characteristics(H264SEIFilmGrainCharacteristics *h, if (h->present) { memset(h, 0, sizeof(*h)); - h->model_id = get_bits(gb, 8); + h->model_id = get_bits(gb, 2); h->separate_colour_description_present_flag = get_bits1(gb); if (h->separate_colour_description_present_flag) { h->bit_depth_luma = get_bits(gb, 3) + 8;