diff options
Diffstat (limited to 'libavcodec/h264_ps.c')
| -rw-r--r-- | libavcodec/h264_ps.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/libavcodec/h264_ps.c b/libavcodec/h264_ps.c index 943d953645..2f166c59dc 100644 --- a/libavcodec/h264_ps.c +++ b/libavcodec/h264_ps.c @@ -265,8 +265,9 @@ static void decode_scaling_list(GetBitContext *gb, uint8_t *factors, int size, } } -static void decode_scaling_matrices(GetBitContext *gb, SPS *sps, - PPS *pps, int is_sps, +/* returns non zero if the provided SPS scaling matrix has been filled */ +static int decode_scaling_matrices(GetBitContext *gb, const SPS *sps, + const PPS *pps, int is_sps, uint8_t(*scaling_matrix4)[16], uint8_t(*scaling_matrix8)[64]) { @@ -277,8 +278,9 @@ static void decode_scaling_matrices(GetBitContext *gb, SPS *sps, fallback_sps ? sps->scaling_matrix8[0] : default_scaling8[0], fallback_sps ? sps->scaling_matrix8[3] : default_scaling8[1] }; + int ret = 0; if (get_bits1(gb)) { - sps->scaling_matrix_present |= is_sps; + ret = is_sps; decode_scaling_list(gb, scaling_matrix4[0], 16, default_scaling4[0], fallback[0]); // Intra, Y decode_scaling_list(gb, scaling_matrix4[1], 16, default_scaling4[0], scaling_matrix4[0]); // Intra, Cr decode_scaling_list(gb, scaling_matrix4[2], 16, default_scaling4[0], scaling_matrix4[1]); // Intra, Cb @@ -296,6 +298,8 @@ static void decode_scaling_matrices(GetBitContext *gb, SPS *sps, } } } + + return ret; } void ff_h264_ps_uninit(H264ParamSets *ps) @@ -401,7 +405,7 @@ int ff_h264_decode_seq_parameter_set(GetBitContext *gb, AVCodecContext *avctx, goto fail; } sps->transform_bypass = get_bits1(gb); - decode_scaling_matrices(gb, sps, NULL, 1, + sps->scaling_matrix_present |= decode_scaling_matrices(gb, sps, NULL, 1, sps->scaling_matrix4, sps->scaling_matrix8); } else { sps->chroma_format_idc = 1; |