| 626 | } |
| 627 | |
| 628 | static int hvcc_parse_sps(GetBitContext *gb, HVCCNALUnit *nal, |
| 629 | HEVCDecoderConfigurationRecord *hvcc) |
| 630 | { |
| 631 | unsigned int i, sps_max_sub_layers_minus1, log2_max_pic_order_cnt_lsb_minus4; |
| 632 | unsigned int num_short_term_ref_pic_sets, num_delta_pocs[HEVC_MAX_SHORT_TERM_REF_PIC_SETS]; |
| 633 | unsigned int sps_ext_or_max_sub_layers_minus1, multi_layer_ext_sps_flag; |
| 634 | |
| 635 | unsigned int sps_video_parameter_set_id = get_bits(gb, 4); |
| 636 | |
| 637 | if (nal->nuh_layer_id == 0) { |
| 638 | sps_ext_or_max_sub_layers_minus1 = 0; |
| 639 | sps_max_sub_layers_minus1 = get_bits(gb, 3); |
| 640 | } else { |
| 641 | sps_ext_or_max_sub_layers_minus1 = get_bits(gb, 3); |
| 642 | if (sps_ext_or_max_sub_layers_minus1 == 7) { |
| 643 | const HVCCNALUnitArray *array = &hvcc->arrays[VPS_INDEX]; |
| 644 | const HVCCNALUnit *vps = NULL; |
| 645 | |
| 646 | for (i = 0; i < array->numNalus; i++) |
| 647 | if (sps_video_parameter_set_id == array->nal[i].parameter_set_id) { |
| 648 | vps = &array->nal[i]; |
| 649 | break; |
| 650 | } |
| 651 | if (!vps) |
| 652 | return AVERROR_INVALIDDATA; |
| 653 | |
| 654 | sps_max_sub_layers_minus1 = vps->vps_max_sub_layers_minus1; |
| 655 | } else |
| 656 | sps_max_sub_layers_minus1 = sps_ext_or_max_sub_layers_minus1; |
| 657 | } |
| 658 | multi_layer_ext_sps_flag = nal->nuh_layer_id && |
| 659 | sps_ext_or_max_sub_layers_minus1 == 7; |
| 660 | |
| 661 | /* |
| 662 | * numTemporalLayers greater than 1 indicates that the stream to which this |
| 663 | * configuration record applies is temporally scalable and the contained |
| 664 | * number of temporal layers (also referred to as temporal sub-layer or |
| 665 | * sub-layer in ISO/IEC 23008-2) is equal to numTemporalLayers. Value 1 |
| 666 | * indicates that the stream is not temporally scalable. Value 0 indicates |
| 667 | * that it is unknown whether the stream is temporally scalable. |
| 668 | */ |
| 669 | hvcc->numTemporalLayers = FFMAX(hvcc->numTemporalLayers, |
| 670 | sps_max_sub_layers_minus1 + 1); |
| 671 | |
| 672 | if (!multi_layer_ext_sps_flag) { |
| 673 | hvcc->temporalIdNested = get_bits1(gb); |
| 674 | hvcc_parse_ptl(gb, hvcc, 1, sps_max_sub_layers_minus1); |
| 675 | } |
| 676 | |
| 677 | nal->parameter_set_id = get_ue_golomb_long(gb); |
| 678 | |
| 679 | if (multi_layer_ext_sps_flag) { |
| 680 | if (get_bits1(gb)) // update_rep_format_flag |
| 681 | skip_bits(gb, 8); // sps_rep_format_idx |
| 682 | } else { |
| 683 | hvcc->chromaFormat = get_ue_golomb_long(gb); |
| 684 | |
| 685 | if (hvcc->chromaFormat == 3) |
no test coverage detected