/*! ************************************************************************ * \file * parset.c * \brief * Parameter Sets * \author * Main contributors (see contributors.h for copyright, address and affiliation details) * - Stephan Wenger * *********************************************************************** */ #include "global.h" #include "image.h" #include "parsetcommon.h" #include "parset.h" #include "nalu.h" #include "memalloc.h" #include "fmo.h" #include "cabac.h" #include "vlc.h" #include "mbuffer.h" #include "erc_api.h" #if TRACE #define SYMTRACESTRING(s) strncpy(sym->tracestring,s,TRACESTRING_SIZE) #else #define SYMTRACESTRING(s) // do nothing #endif extern void init_frext(VideoParameters *p_Vid); // syntax for scaling list matrix values void Scaling_List(int *scalingList, int sizeOfScalingList, Boolean *UseDefaultScalingMatrix, Bitstream *s) { int j, scanj; int delta_scale, lastScale, nextScale; lastScale = 8; nextScale = 8; for(j=0; jbitstream; assert (p != NULL); assert (p->bitstream != NULL); assert (p->bitstream->streamBuffer != 0); assert (sps != NULL); sps->profile_idc = u_v (8, "SPS: profile_idc" , s); if ((sps->profile_idc!=BASELINE ) && (sps->profile_idc!=MAIN ) && (sps->profile_idc!=EXTENDED ) && (sps->profile_idc!=FREXT_HP ) && (sps->profile_idc!=FREXT_Hi10P ) && (sps->profile_idc!=FREXT_Hi422 ) && (sps->profile_idc!=FREXT_Hi444 ) && (sps->profile_idc!=FREXT_CAVLC444 )) { printf("Invalid Profile IDC (%d) encountered. \n", sps->profile_idc); return; } sps->constrained_set0_flag = u_1 ( "SPS: constrained_set0_flag" , s); sps->constrained_set1_flag = u_1 ( "SPS: constrained_set1_flag" , s); sps->constrained_set2_flag = u_1 ( "SPS: constrained_set2_flag" , s); sps->constrained_set3_flag = u_1 ( "SPS: constrained_set3_flag" , s); reserved_zero = u_v (4, "SPS: reserved_zero_4bits" , s); assert (reserved_zero==0); sps->level_idc = u_v (8, "SPS: level_idc" , s); sps->seq_parameter_set_id = ue_v ("SPS: seq_parameter_set_id" , s); // Fidelity Range Extensions stuff sps->chroma_format_idc = 1; sps->bit_depth_luma_minus8 = 0; sps->bit_depth_chroma_minus8 = 0; p_Vid->lossless_qpprime_flag = 0; sps->separate_colour_plane_flag = 0; if((IS_FREXT_PROFILE(sps->profile_idc)))/*==FREXT_HP ) || (sps->profile_idc==FREXT_Hi10P) || (sps->profile_idc==FREXT_Hi422) || (sps->profile_idc==FREXT_Hi444) || (sps->profile_idc==FREXT_CAVLC444))*/ { sps->chroma_format_idc = ue_v ("SPS: chroma_format_idc" , s); if(sps->chroma_format_idc == YUV444) { sps->separate_colour_plane_flag = u_1 ("SPS: separate_colour_plane_flag" , s); } sps->bit_depth_luma_minus8 = ue_v ("SPS: bit_depth_luma_minus8" , s); sps->bit_depth_chroma_minus8 = ue_v ("SPS: bit_depth_chroma_minus8" , s); p_Vid->lossless_qpprime_flag = u_1 ("SPS: lossless_qpprime_y_zero_flag" , s); sps->seq_scaling_matrix_present_flag = u_1 ( "SPS: seq_scaling_matrix_present_flag" , s); if(sps->seq_scaling_matrix_present_flag) { n_ScalingList = (sps->chroma_format_idc != YUV444) ? 8 : 12; for(i=0; iseq_scaling_list_present_flag[i] = u_1 ( "SPS: seq_scaling_list_present_flag" , s); if(sps->seq_scaling_list_present_flag[i]) { if(i<6) Scaling_List(sps->ScalingList4x4[i], 16, &sps->UseDefaultScalingMatrix4x4Flag[i], s); else Scaling_List(sps->ScalingList8x8[i-6], 64, &sps->UseDefaultScalingMatrix8x8Flag[i-6], s); } } } } sps->log2_max_frame_num_minus4 = ue_v ("SPS: log2_max_frame_num_minus4" , s); sps->pic_order_cnt_type = ue_v ("SPS: pic_order_cnt_type" , s); if (sps->pic_order_cnt_type == 0) sps->log2_max_pic_order_cnt_lsb_minus4 = ue_v ("SPS: log2_max_pic_order_cnt_lsb_minus4" , s); else if (sps->pic_order_cnt_type == 1) { sps->delta_pic_order_always_zero_flag = u_1 ("SPS: delta_pic_order_always_zero_flag" , s); sps->offset_for_non_ref_pic = se_v ("SPS: offset_for_non_ref_pic" , s); sps->offset_for_top_to_bottom_field = se_v ("SPS: offset_for_top_to_bottom_field" , s); sps->num_ref_frames_in_pic_order_cnt_cycle = ue_v ("SPS: num_ref_frames_in_pic_order_cnt_cycle" , s); for(i=0; inum_ref_frames_in_pic_order_cnt_cycle; i++) sps->offset_for_ref_frame[i] = se_v ("SPS: offset_for_ref_frame[i]" , s); } sps->num_ref_frames = ue_v ("SPS: num_ref_frames" , s); sps->gaps_in_frame_num_value_allowed_flag = u_1 ("SPS: gaps_in_frame_num_value_allowed_flag" , s); sps->pic_width_in_mbs_minus1 = ue_v ("SPS: pic_width_in_mbs_minus1" , s); sps->pic_height_in_map_units_minus1 = ue_v ("SPS: pic_height_in_map_units_minus1" , s); sps->frame_mbs_only_flag = u_1 ("SPS: frame_mbs_only_flag" , s); if (!sps->frame_mbs_only_flag) { sps->mb_adaptive_frame_field_flag = u_1 ("SPS: mb_adaptive_frame_field_flag" , s); } sps->direct_8x8_inference_flag = u_1 ("SPS: direct_8x8_inference_flag" , s); sps->frame_cropping_flag = u_1 ("SPS: frame_cropping_flag" , s); if (sps->frame_cropping_flag) { sps->frame_cropping_rect_left_offset = ue_v ("SPS: frame_cropping_rect_left_offset" , s); sps->frame_cropping_rect_right_offset = ue_v ("SPS: frame_cropping_rect_right_offset" , s); sps->frame_cropping_rect_top_offset = ue_v ("SPS: frame_cropping_rect_top_offset" , s); sps->frame_cropping_rect_bottom_offset = ue_v ("SPS: frame_cropping_rect_bottom_offset" , s); } sps->vui_parameters_present_flag = (Boolean) u_1 ("SPS: vui_parameters_present_flag" , s); InitVUI(sps); ReadVUI(p, sps); sps->Valid = TRUE; } void InitVUI(seq_parameter_set_rbsp_t *sps) { sps->vui_seq_parameters.matrix_coefficients = 2; } int ReadVUI(DataPartition *p, seq_parameter_set_rbsp_t *sps) { Bitstream *s = p->bitstream; if (sps->vui_parameters_present_flag) { sps->vui_seq_parameters.aspect_ratio_info_present_flag = u_1 ("VUI: aspect_ratio_info_present_flag" , s); if (sps->vui_seq_parameters.aspect_ratio_info_present_flag) { sps->vui_seq_parameters.aspect_ratio_idc = u_v ( 8, "VUI: aspect_ratio_idc" , s); if (255==sps->vui_seq_parameters.aspect_ratio_idc) { sps->vui_seq_parameters.sar_width = (unsigned short) u_v (16, "VUI: sar_width" , s); sps->vui_seq_parameters.sar_height = (unsigned short) u_v (16, "VUI: sar_height" , s); } } sps->vui_seq_parameters.overscan_info_present_flag = u_1 ("VUI: overscan_info_present_flag" , s); if (sps->vui_seq_parameters.overscan_info_present_flag) { sps->vui_seq_parameters.overscan_appropriate_flag = u_1 ("VUI: overscan_appropriate_flag" , s); } sps->vui_seq_parameters.video_signal_type_present_flag = u_1 ("VUI: video_signal_type_present_flag" , s); if (sps->vui_seq_parameters.video_signal_type_present_flag) { sps->vui_seq_parameters.video_format = u_v ( 3,"VUI: video_format" , s); sps->vui_seq_parameters.video_full_range_flag = u_1 ( "VUI: video_full_range_flag" , s); sps->vui_seq_parameters.colour_description_present_flag = u_1 ( "VUI: color_description_present_flag" , s); if(sps->vui_seq_parameters.colour_description_present_flag) { sps->vui_seq_parameters.colour_primaries = u_v ( 8,"VUI: colour_primaries" , s); sps->vui_seq_parameters.transfer_characteristics = u_v ( 8,"VUI: transfer_characteristics" , s); sps->vui_seq_parameters.matrix_coefficients = u_v ( 8,"VUI: matrix_coefficients" , s); } } sps->vui_seq_parameters.chroma_location_info_present_flag = u_1 ( "VUI: chroma_loc_info_present_flag" , s); if(sps->vui_seq_parameters.chroma_location_info_present_flag) { sps->vui_seq_parameters.chroma_sample_loc_type_top_field = ue_v ( "VUI: chroma_sample_loc_type_top_field" , s); sps->vui_seq_parameters.chroma_sample_loc_type_bottom_field = ue_v ( "VUI: chroma_sample_loc_type_bottom_field" , s); } sps->vui_seq_parameters.timing_info_present_flag = u_1 ("VUI: timing_info_present_flag" , s); if (sps->vui_seq_parameters.timing_info_present_flag) { sps->vui_seq_parameters.num_units_in_tick = u_v (32,"VUI: num_units_in_tick" , s); sps->vui_seq_parameters.time_scale = u_v (32,"VUI: time_scale" , s); sps->vui_seq_parameters.fixed_frame_rate_flag = u_1 ( "VUI: fixed_frame_rate_flag" , s); } sps->vui_seq_parameters.nal_hrd_parameters_present_flag = u_1 ("VUI: nal_hrd_parameters_present_flag" , s); if (sps->vui_seq_parameters.nal_hrd_parameters_present_flag) { ReadHRDParameters(p, &(sps->vui_seq_parameters.nal_hrd_parameters)); } sps->vui_seq_parameters.vcl_hrd_parameters_present_flag = u_1 ("VUI: vcl_hrd_parameters_present_flag" , s); if (sps->vui_seq_parameters.vcl_hrd_parameters_present_flag) { ReadHRDParameters(p, &(sps->vui_seq_parameters.vcl_hrd_parameters)); } if (sps->vui_seq_parameters.nal_hrd_parameters_present_flag || sps->vui_seq_parameters.vcl_hrd_parameters_present_flag) { sps->vui_seq_parameters.low_delay_hrd_flag = u_1 ("VUI: low_delay_hrd_flag" , s); } sps->vui_seq_parameters.pic_struct_present_flag = u_1 ("VUI: pic_struct_present_flag " , s); sps->vui_seq_parameters.bitstream_restriction_flag = u_1 ("VUI: bitstream_restriction_flag" , s); if (sps->vui_seq_parameters.bitstream_restriction_flag) { sps->vui_seq_parameters.motion_vectors_over_pic_boundaries_flag = u_1 ("VUI: motion_vectors_over_pic_boundaries_flag", s); sps->vui_seq_parameters.max_bytes_per_pic_denom = ue_v ("VUI: max_bytes_per_pic_denom" , s); sps->vui_seq_parameters.max_bits_per_mb_denom = ue_v ("VUI: max_bits_per_mb_denom" , s); sps->vui_seq_parameters.log2_max_mv_length_horizontal = ue_v ("VUI: log2_max_mv_length_horizontal" , s); sps->vui_seq_parameters.log2_max_mv_length_vertical = ue_v ("VUI: log2_max_mv_length_vertical" , s); sps->vui_seq_parameters.num_reorder_frames = ue_v ("VUI: num_reorder_frames" , s); sps->vui_seq_parameters.max_dec_frame_buffering = ue_v ("VUI: max_dec_frame_buffering" , s); } } return 0; } int ReadHRDParameters(DataPartition *p, hrd_parameters_t *hrd) { Bitstream *s = p->bitstream; unsigned int SchedSelIdx; hrd->cpb_cnt_minus1 = ue_v ( "VUI: cpb_cnt_minus1" , s); hrd->bit_rate_scale = u_v ( 4,"VUI: bit_rate_scale" , s); hrd->cpb_size_scale = u_v ( 4,"VUI: cpb_size_scale" , s); for( SchedSelIdx = 0; SchedSelIdx <= hrd->cpb_cnt_minus1; SchedSelIdx++ ) { hrd->bit_rate_value_minus1[ SchedSelIdx ] = ue_v ( "VUI: bit_rate_value_minus1" , s); hrd->cpb_size_value_minus1[ SchedSelIdx ] = ue_v ( "VUI: cpb_size_value_minus1" , s); hrd->cbr_flag[ SchedSelIdx ] = u_1 ( "VUI: cbr_flag" , s); } hrd->initial_cpb_removal_delay_length_minus1 = u_v ( 5,"VUI: initial_cpb_removal_delay_length_minus1" , s); hrd->cpb_removal_delay_length_minus1 = u_v ( 5,"VUI: cpb_removal_delay_length_minus1" , s); hrd->dpb_output_delay_length_minus1 = u_v ( 5,"VUI: dpb_output_delay_length_minus1" , s); hrd->time_offset_length = u_v ( 5,"VUI: time_offset_length" , s); return 0; } static void InterpretPPS (VideoParameters *p_Vid, DataPartition *p, pic_parameter_set_rbsp_t *pps) { unsigned i; unsigned n_ScalingList; int chroma_format_idc; int NumberBitsPerSliceGroupId; Bitstream *s = p->bitstream; assert (p != NULL); assert (p->bitstream != NULL); assert (p->bitstream->streamBuffer != 0); assert (pps != NULL); pps->pic_parameter_set_id = ue_v ("PPS: pic_parameter_set_id" , s); pps->seq_parameter_set_id = ue_v ("PPS: seq_parameter_set_id" , s); pps->entropy_coding_mode_flag = u_1 ("PPS: entropy_coding_mode_flag" , s); //! Note: as per JVT-F078 the following bit is unconditional. If F078 is not accepted, then //! one has to fetch the correct SPS to check whether the bit is present (hopefully there is //! no consistency problem :-( //! The current encoder code handles this in the same way. When you change this, don't forget //! the encoder! StW, 12/8/02 pps->bottom_field_pic_order_in_frame_present_flag = u_1 ("PPS: bottom_field_pic_order_in_frame_present_flag" , s); pps->num_slice_groups_minus1 = ue_v ("PPS: num_slice_groups_minus1" , s); // FMO stuff begins here if (pps->num_slice_groups_minus1 > 0) { pps->slice_group_map_type = ue_v ("PPS: slice_group_map_type" , s); if (pps->slice_group_map_type == 0) { for (i=0; i<=pps->num_slice_groups_minus1; i++) pps->run_length_minus1 [i] = ue_v ("PPS: run_length_minus1 [i]" , s); } else if (pps->slice_group_map_type == 2) { for (i=0; inum_slice_groups_minus1; i++) { //! JVT-F078: avoid reference of SPS by using ue(v) instead of u(v) pps->top_left [i] = ue_v ("PPS: top_left [i]" , s); pps->bottom_right [i] = ue_v ("PPS: bottom_right [i]" , s); } } else if (pps->slice_group_map_type == 3 || pps->slice_group_map_type == 4 || pps->slice_group_map_type == 5) { pps->slice_group_change_direction_flag = u_1 ("PPS: slice_group_change_direction_flag" , s); pps->slice_group_change_rate_minus1 = ue_v ("PPS: slice_group_change_rate_minus1" , s); } else if (pps->slice_group_map_type == 6) { if (pps->num_slice_groups_minus1+1 >4) NumberBitsPerSliceGroupId = 3; else if (pps->num_slice_groups_minus1+1 > 2) NumberBitsPerSliceGroupId = 2; else NumberBitsPerSliceGroupId = 1; pps->pic_size_in_map_units_minus1 = ue_v ("PPS: pic_size_in_map_units_minus1" , s); if ((pps->slice_group_id = calloc (pps->pic_size_in_map_units_minus1+1, 1)) == NULL) no_mem_exit ("InterpretPPS: slice_group_id"); for (i=0; i<=pps->pic_size_in_map_units_minus1; i++) pps->slice_group_id[i] = (byte) u_v (NumberBitsPerSliceGroupId, "slice_group_id[i]", s); } } // End of FMO stuff pps->num_ref_idx_l0_active_minus1 = ue_v ("PPS: num_ref_idx_l0_active_minus1" , s); pps->num_ref_idx_l1_active_minus1 = ue_v ("PPS: num_ref_idx_l1_active_minus1" , s); pps->weighted_pred_flag = u_1 ("PPS: weighted_pred_flag" , s); pps->weighted_bipred_idc = u_v ( 2, "PPS: weighted_bipred_idc" , s); pps->pic_init_qp_minus26 = se_v ("PPS: pic_init_qp_minus26" , s); pps->pic_init_qs_minus26 = se_v ("PPS: pic_init_qs_minus26" , s); pps->chroma_qp_index_offset = se_v ("PPS: chroma_qp_index_offset" , s); pps->deblocking_filter_control_present_flag = u_1 ("PPS: deblocking_filter_control_present_flag" , s); pps->constrained_intra_pred_flag = u_1 ("PPS: constrained_intra_pred_flag" , s); pps->redundant_pic_cnt_present_flag = u_1 ("PPS: redundant_pic_cnt_present_flag" , s); if(more_rbsp_data(s->streamBuffer, s->frame_bitoffset,s->bitstream_length)) // more_data_in_rbsp() { //Fidelity Range Extensions Stuff pps->transform_8x8_mode_flag = u_1 ("PPS: transform_8x8_mode_flag" , s); pps->pic_scaling_matrix_present_flag = u_1 ("PPS: pic_scaling_matrix_present_flag" , s); if(pps->pic_scaling_matrix_present_flag) { chroma_format_idc = p_Vid->SeqParSet[pps->seq_parameter_set_id].chroma_format_idc; n_ScalingList = 6 + ((chroma_format_idc != YUV444) ? 2 : 6) * pps->transform_8x8_mode_flag; for(i=0; ipic_scaling_list_present_flag[i]= u_1 ("PPS: pic_scaling_list_present_flag" , s); if(pps->pic_scaling_list_present_flag[i]) { if(i<6) Scaling_List(pps->ScalingList4x4[i], 16, &pps->UseDefaultScalingMatrix4x4Flag[i], s); else Scaling_List(pps->ScalingList8x8[i-6], 64, &pps->UseDefaultScalingMatrix8x8Flag[i-6], s); } } } pps->second_chroma_qp_index_offset = se_v ("PPS: second_chroma_qp_index_offset" , s); } else { pps->second_chroma_qp_index_offset = pps->chroma_qp_index_offset; } pps->Valid = TRUE; } void PPSConsistencyCheck (pic_parameter_set_rbsp_t *pps) { printf ("Consistency checking a picture parset, to be implemented\n"); // if (pps->seq_parameter_set_id invalid then do something) } void SPSConsistencyCheck (seq_parameter_set_rbsp_t *sps) { printf ("Consistency checking a sequence parset, to be implemented\n"); } void MakePPSavailable (VideoParameters *p_Vid, int id, pic_parameter_set_rbsp_t *pps) { assert (pps->Valid == TRUE); if (p_Vid->PicParSet[id].Valid == TRUE && p_Vid->PicParSet[id].slice_group_id != NULL) free (p_Vid->PicParSet[id].slice_group_id); memcpy (&p_Vid->PicParSet[id], pps, sizeof (pic_parameter_set_rbsp_t)); // we can simply use the memory provided with the pps. the PPS is destroyed after this function // call and will not try to free if pps->slice_group_id == NULL p_Vid->PicParSet[id].slice_group_id = pps->slice_group_id; pps->slice_group_id = NULL; } void CleanUpPPS(VideoParameters *p_Vid) { int i; for (i=0; iPicParSet[i].Valid == TRUE && p_Vid->PicParSet[i].slice_group_id != NULL) free (p_Vid->PicParSet[i].slice_group_id); p_Vid->PicParSet[i].Valid = FALSE; } } void MakeSPSavailable (VideoParameters *p_Vid, int id, seq_parameter_set_rbsp_t *sps) { assert (sps->Valid == TRUE); memcpy (&p_Vid->SeqParSet[id], sps, sizeof (seq_parameter_set_rbsp_t)); } void ProcessSPS_Memory(VideoParameters *p_Vid, const void *buffer, size_t bufferlen) { } void ProcessSPS(VideoParameters *p_Vid, NALU_t *nalu) { DataPartition *dp = AllocPartition(1); seq_parameter_set_rbsp_t *sps = AllocSPS(); //memcpy (dp->bitstream->streamBuffer, buffer, bufferlen); dp->bitstream->streamBuffer = &nalu->buf[1]; dp->bitstream->code_len = dp->bitstream->bitstream_length = RBSPtoSODB (dp->bitstream->streamBuffer, nalu->len-1); dp->bitstream->read_len = dp->bitstream->frame_bitoffset = 0; InterpretSPS (p_Vid, dp, sps); if (sps->Valid) { if (p_Vid->active_sps) { if (sps->seq_parameter_set_id == p_Vid->active_sps->seq_parameter_set_id) { if (!sps_is_equal(sps, p_Vid->active_sps)) { if (p_Vid->dec_picture) { // this may only happen on slice loss exit_picture(p_Vid, &p_Vid->dec_picture); } p_Vid->active_sps=NULL; } } } // SPSConsistencyCheck (pps); MakeSPSavailable (p_Vid, sps->seq_parameter_set_id, sps); p_Vid->profile_idc = sps->profile_idc; p_Vid->separate_colour_plane_flag = sps->separate_colour_plane_flag; if( p_Vid->separate_colour_plane_flag ) { p_Vid->ChromaArrayType = 0; } else { p_Vid->ChromaArrayType = sps->chroma_format_idc; } } FreePartition (dp, 1); FreeSPS (sps); } void ProcessPPS (VideoParameters *p_Vid, NALU_t *nalu) { DataPartition *dp = AllocPartition(1); pic_parameter_set_rbsp_t *pps = AllocPPS(); //memcpy (dp->bitstream->streamBuffer, &nalu->buf[1], nalu->len-1); dp->bitstream->streamBuffer = &nalu->buf[1]; dp->bitstream->code_len = dp->bitstream->bitstream_length = RBSPtoSODB (dp->bitstream->streamBuffer, nalu->len-1); dp->bitstream->read_len = dp->bitstream->frame_bitoffset = 0; InterpretPPS (p_Vid, dp, pps); // PPSConsistencyCheck (pps); if (p_Vid->active_pps) { if (pps->pic_parameter_set_id == p_Vid->active_pps->pic_parameter_set_id) { if (!pps_is_equal(pps, p_Vid->active_pps)) { if (p_Vid->dec_picture) { // this may only happen on slice loss exit_picture(p_Vid, &p_Vid->dec_picture); } p_Vid->active_pps = NULL; } } } MakePPSavailable (p_Vid, pps->pic_parameter_set_id, pps); FreePartition (dp, 1); FreePPS (pps); } /*! ************************************************************************ * \brief * Updates images max values * ************************************************************************ */ static void updateMaxValue(FrameFormat *format) { format->max_value[0] = (1 << format->bit_depth[0]) - 1; format->max_value_sq[0] = format->max_value[0] * format->max_value[0]; format->max_value[1] = (1 << format->bit_depth[1]) - 1; format->max_value_sq[1] = format->max_value[1] * format->max_value[1]; format->max_value[2] = (1 << format->bit_depth[2]) - 1; format->max_value_sq[2] = format->max_value[2] * format->max_value[2]; } /*! ************************************************************************ * \brief * Reset format information * ************************************************************************ */ static void reset_format_info(seq_parameter_set_rbsp_t *sps, VideoParameters *p_Vid, FrameFormat *output) { InputParameters *p_Inp = p_Vid->p_Inp; static const int SubWidthC [4]= { 1, 2, 2, 1}; static const int SubHeightC [4]= { 1, 2, 1, 1}; int crop_left, crop_right; int crop_top, crop_bottom; // cropping for luma if (sps->frame_cropping_flag) { crop_left = SubWidthC [sps->chroma_format_idc] * sps->frame_cropping_rect_left_offset; crop_right = SubWidthC [sps->chroma_format_idc] * sps->frame_cropping_rect_right_offset; crop_top = SubHeightC[sps->chroma_format_idc] * ( 2 - sps->frame_mbs_only_flag ) * sps->frame_cropping_rect_top_offset; crop_bottom = SubHeightC[sps->chroma_format_idc] * ( 2 - sps->frame_mbs_only_flag ) * sps->frame_cropping_rect_bottom_offset; } else { crop_left = crop_right = crop_top = crop_bottom = 0; } output->width_crop = p_Vid->width - crop_left - crop_right; output->height_crop = p_Vid->height - crop_top - crop_bottom; output->width = p_Vid->width; output->height = p_Vid->height; output->width_cr = p_Vid->width_cr; output->height_cr = p_Vid->height_cr; // output size (excluding padding) output->size_cmp[0] = output->width * output->height; output->size_cmp[1] = output->width_cr * output->height_cr; output->size_cmp[2] = output->size_cmp[1]; output->size = output->size_cmp[0] + output->size_cmp[1] + output->size_cmp[2]; output->mb_width = output->width / MB_BLOCK_SIZE; output->mb_height = output->height / MB_BLOCK_SIZE; output->bit_depth[0] = p_Vid->bitdepth_luma; output->bit_depth[1] = p_Vid->bitdepth_chroma; output->bit_depth[2] = p_Vid->bitdepth_chroma; output->yuv_format = (ColorFormat) sps->chroma_format_idc; updateMaxValue(output); } /*! ************************************************************************ * \brief * Activate Sequence Parameter Sets * ************************************************************************ */ void activate_sps (VideoParameters *p_Vid, seq_parameter_set_rbsp_t *sps) { InputParameters *p_Inp = p_Vid->p_Inp; if (p_Vid->active_sps != sps) { if (p_Vid->dec_picture) { // this may only happen on slice loss exit_picture(p_Vid, &p_Vid->dec_picture); } p_Vid->active_sps = sps; p_Vid->bitdepth_chroma = 0; p_Vid->width_cr = 0; p_Vid->height_cr = 0; // maximum vertical motion vector range in luma quarter pixel units if (p_Vid->active_sps->level_idc <= 10) { p_Vid->max_vmv_r = 64 * 4; } else if (p_Vid->active_sps->level_idc <= 20) { p_Vid->max_vmv_r = 128 * 4; } else if (p_Vid->active_sps->level_idc <= 30) { p_Vid->max_vmv_r = 256 * 4; } else { p_Vid->max_vmv_r = 512 * 4; // 512 pixels in quarter pixels } // Fidelity Range Extensions stuff (part 1) p_Vid->bitdepth_luma = (short) (sps->bit_depth_luma_minus8 + 8); p_Vid->bitdepth_scale[0] = 1 << sps->bit_depth_luma_minus8; if (sps->chroma_format_idc != YUV400) { p_Vid->bitdepth_chroma = (short) (sps->bit_depth_chroma_minus8 + 8); p_Vid->bitdepth_scale[1] = 1 << sps->bit_depth_chroma_minus8; } p_Vid->MaxFrameNum = 1<<(sps->log2_max_frame_num_minus4+4); p_Vid->PicWidthInMbs = (sps->pic_width_in_mbs_minus1 +1); p_Vid->PicHeightInMapUnits = (sps->pic_height_in_map_units_minus1 +1); p_Vid->FrameHeightInMbs = ( 2 - sps->frame_mbs_only_flag ) * p_Vid->PicHeightInMapUnits; p_Vid->FrameSizeInMbs = p_Vid->PicWidthInMbs * p_Vid->FrameHeightInMbs; p_Vid->yuv_format=sps->chroma_format_idc; p_Vid->width = p_Vid->PicWidthInMbs * MB_BLOCK_SIZE; p_Vid->height = p_Vid->FrameHeightInMbs * MB_BLOCK_SIZE; if (sps->chroma_format_idc == YUV420) { p_Vid->width_cr = (p_Vid->width >> 1); p_Vid->height_cr = (p_Vid->height >> 1); } else if (sps->chroma_format_idc == YUV422) { p_Vid->width_cr = (p_Vid->width >> 1); p_Vid->height_cr = p_Vid->height; } else if (sps->chroma_format_idc == YUV444) { //YUV444 p_Vid->width_cr = p_Vid->width; p_Vid->height_cr = p_Vid->height; } init_frext(p_Vid); init_global_buffers(p_Vid); if (!p_Vid->no_output_of_prior_pics_flag) { flush_dpb(p_Vid); } init_dpb(p_Vid); ercInit(p_Vid, p_Vid->width, p_Vid->height, 1); image_cache_set_dimensions(&p_Vid->image_cache[0], p_Vid->width, p_Vid->height); image_cache_set_dimensions(&p_Vid->image_cache[1], p_Vid->width_cr, p_Vid->height_cr); motion_cache_set_dimensions(&p_Vid->motion_cache, p_Vid->width / BLOCK_SIZE, p_Vid->height / BLOCK_SIZE); } reset_format_info(sps, p_Vid, &p_Inp->output); } void activate_pps(VideoParameters *p_Vid, pic_parameter_set_rbsp_t *pps) { if (p_Vid->active_pps != pps) { if (p_Vid->dec_picture) { // this may only happen on slice loss exit_picture(p_Vid, &p_Vid->dec_picture); } p_Vid->active_pps = pps; // Fidelity Range Extensions stuff (part 2) p_Vid->Transform8x8Mode = pps->transform_8x8_mode_flag; } } void UseParameterSet (Slice *currSlice, int PicParsetId) { VideoParameters *p_Vid = currSlice->p_Vid; seq_parameter_set_rbsp_t *sps = &p_Vid->SeqParSet[p_Vid->PicParSet[PicParsetId].seq_parameter_set_id]; pic_parameter_set_rbsp_t *pps = &p_Vid->PicParSet[PicParsetId]; if (p_Vid->PicParSet[PicParsetId].Valid != TRUE) printf ("Trying to use an invalid (uninitialized) Picture Parameter Set with ID %d, expect the unexpected...\n", PicParsetId); if (p_Vid->SeqParSet[p_Vid->PicParSet[PicParsetId].seq_parameter_set_id].Valid != TRUE) printf ("PicParset %d references an invalid (uninitialized) Sequence Parameter Set with ID %d, expect the unexpected...\n", PicParsetId, (int) p_Vid->PicParSet[PicParsetId].seq_parameter_set_id); sps = &p_Vid->SeqParSet[p_Vid->PicParSet[PicParsetId].seq_parameter_set_id]; // In theory, and with a well-designed software, the lines above // are everything necessary. In practice, we need to patch many values // in p_Vid-> (but no more in p_Inp-> -- these have been taken care of) // Sequence Parameter Set Stuff first // printf ("Using Picture Parameter set %d and associated Sequence Parameter Set %d\n", PicParsetId, p_Vid->PicParSet[PicParsetId].seq_parameter_set_id); if ((int) sps->pic_order_cnt_type < 0 || sps->pic_order_cnt_type > 2) // != 1 { printf ("invalid sps->pic_order_cnt_type = %d\n", (int) sps->pic_order_cnt_type); error ("pic_order_cnt_type != 1", -1000); } if (sps->pic_order_cnt_type == 1) { if(sps->num_ref_frames_in_pic_order_cnt_cycle >= MAXnum_ref_frames_in_pic_order_cnt_cycle) { error("num_ref_frames_in_pic_order_cnt_cycle too large",-1011); } } activate_sps(p_Vid, sps); activate_pps(p_Vid, pps); // currSlice->dp_mode is set by read_new_slice (NALU first byte available there) if (pps->entropy_coding_mode_flag == CAVLC) { currSlice->nal_startcode_follows = uvlc_startcode_follows; } else { currSlice->nal_startcode_follows = cabac_startcode_follows; } }