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Make pps/sps scaling_matrix initialization closer to the spec.
This does not affect any of the conformance streams. Originally committed as revision 15365 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -6963,9 +6963,6 @@ static void decode_scaling_matrices(H264Context *h, SPS *sps, PPS *pps, int is_s
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decode_scaling_list(h,scaling_matrix8[0],64,default_scaling8[0],fallback[2]); // Intra, Y
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decode_scaling_list(h,scaling_matrix8[1],64,default_scaling8[1],fallback[3]); // Inter, Y
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}
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} else if(fallback_sps) {
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memcpy(scaling_matrix4, sps->scaling_matrix4, 6*16*sizeof(uint8_t));
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memcpy(scaling_matrix8, sps->scaling_matrix8, 2*64*sizeof(uint8_t));
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}
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}
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@ -7012,6 +7009,10 @@ static inline int decode_seq_parameter_set(H264Context *h){
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sps->profile_idc= profile_idc;
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sps->level_idc= level_idc;
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memset(sps->scaling_matrix4, 16, sizeof(sps->scaling_matrix4));
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memset(sps->scaling_matrix8, 16, sizeof(sps->scaling_matrix8));
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sps->scaling_matrix_present = 0;
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if(sps->profile_idc >= 100){ //high profile
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sps->chroma_format_idc= get_ue_golomb(&s->gb);
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if(sps->chroma_format_idc == 3)
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@ -7021,7 +7022,6 @@ static inline int decode_seq_parameter_set(H264Context *h){
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sps->transform_bypass = get_bits1(&s->gb);
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decode_scaling_matrices(h, sps, NULL, 1, sps->scaling_matrix4, sps->scaling_matrix8);
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}else{
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sps->scaling_matrix_present = 0;
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sps->chroma_format_idc= 1;
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}
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@ -7204,8 +7204,8 @@ static inline int decode_picture_parameter_set(H264Context *h, int bit_length){
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pps->transform_8x8_mode= 0;
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h->dequant_coeff_pps= -1; //contents of sps/pps can change even if id doesn't, so reinit
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memset(pps->scaling_matrix4, 16, 6*16*sizeof(uint8_t));
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memset(pps->scaling_matrix8, 16, 2*64*sizeof(uint8_t));
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memcpy(pps->scaling_matrix4, h->sps_buffers[pps->sps_id]->scaling_matrix4, sizeof(pps->scaling_matrix4));
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memcpy(pps->scaling_matrix8, h->sps_buffers[pps->sps_id]->scaling_matrix8, sizeof(pps->scaling_matrix8));
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if(get_bits_count(&s->gb) < bit_length){
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pps->transform_8x8_mode= get_bits1(&s->gb);
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