diff options
Diffstat (limited to 'ffmpeg1/libavcodec/h264_ps.c')
| -rw-r--r-- | ffmpeg1/libavcodec/h264_ps.c | 688 |
1 files changed, 0 insertions, 688 deletions
diff --git a/ffmpeg1/libavcodec/h264_ps.c b/ffmpeg1/libavcodec/h264_ps.c deleted file mode 100644 index 8638ce2..0000000 --- a/ffmpeg1/libavcodec/h264_ps.c +++ /dev/null @@ -1,688 +0,0 @@ -/* - * H.26L/H.264/AVC/JVT/14496-10/... parameter set decoding - * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/** - * @file - * H.264 / AVC / MPEG4 part10 parameter set decoding. - * @author Michael Niedermayer <michaelni@gmx.at> - */ - -#include "libavutil/imgutils.h" -#include "internal.h" -#include "avcodec.h" -#include "h264.h" -#include "h264data.h" //FIXME FIXME FIXME (just for zigzag_scan) -#include "golomb.h" - - -//#undef NDEBUG -#include <assert.h> - -#define MAX_LOG2_MAX_FRAME_NUM (12 + 4) -#define MIN_LOG2_MAX_FRAME_NUM 4 - -static const AVRational pixel_aspect[17]={ - {0, 1}, - {1, 1}, - {12, 11}, - {10, 11}, - {16, 11}, - {40, 33}, - {24, 11}, - {20, 11}, - {32, 11}, - {80, 33}, - {18, 11}, - {15, 11}, - {64, 33}, - {160,99}, - {4, 3}, - {3, 2}, - {2, 1}, -}; - -#define QP(qP,depth) ( (qP)+6*((depth)-8) ) - -#define CHROMA_QP_TABLE_END(d) \ - QP(0,d), QP(1,d), QP(2,d), QP(3,d), QP(4,d), QP(5,d),\ - QP(6,d), QP(7,d), QP(8,d), QP(9,d), QP(10,d), QP(11,d),\ - QP(12,d), QP(13,d), QP(14,d), QP(15,d), QP(16,d), QP(17,d),\ - QP(18,d), QP(19,d), QP(20,d), QP(21,d), QP(22,d), QP(23,d),\ - QP(24,d), QP(25,d), QP(26,d), QP(27,d), QP(28,d), QP(29,d),\ - QP(29,d), QP(30,d), QP(31,d), QP(32,d), QP(32,d), QP(33,d),\ - QP(34,d), QP(34,d), QP(35,d), QP(35,d), QP(36,d), QP(36,d),\ - QP(37,d), QP(37,d), QP(37,d), QP(38,d), QP(38,d), QP(38,d),\ - QP(39,d), QP(39,d), QP(39,d), QP(39,d) - -const uint8_t ff_h264_chroma_qp[7][QP_MAX_NUM+1] = { - { - CHROMA_QP_TABLE_END(8) - }, - { - 0, 1, 2, 3, 4, 5, - CHROMA_QP_TABLE_END(9) - }, - { - 0, 1, 2, 3, 4, 5, - 6, 7, 8, 9, 10, 11, - CHROMA_QP_TABLE_END(10) - }, - { - 0, 1, 2, 3, 4, 5, - 6, 7, 8, 9, 10, 11, - 12,13,14,15, 16, 17, - CHROMA_QP_TABLE_END(11) - }, - { - 0, 1, 2, 3, 4, 5, - 6, 7, 8, 9, 10, 11, - 12,13,14,15, 16, 17, - 18,19,20,21, 22, 23, - CHROMA_QP_TABLE_END(12) - }, - { - 0, 1, 2, 3, 4, 5, - 6, 7, 8, 9, 10, 11, - 12,13,14,15, 16, 17, - 18,19,20,21, 22, 23, - 24,25,26,27, 28, 29, - CHROMA_QP_TABLE_END(13) - }, - { - 0, 1, 2, 3, 4, 5, - 6, 7, 8, 9, 10, 11, - 12,13,14,15, 16, 17, - 18,19,20,21, 22, 23, - 24,25,26,27, 28, 29, - 30,31,32,33, 34, 35, - CHROMA_QP_TABLE_END(14) - }, -}; - -static const uint8_t default_scaling4[2][16]={ -{ 6,13,20,28, - 13,20,28,32, - 20,28,32,37, - 28,32,37,42 -},{ - 10,14,20,24, - 14,20,24,27, - 20,24,27,30, - 24,27,30,34 -}}; - -static const uint8_t default_scaling8[2][64]={ -{ 6,10,13,16,18,23,25,27, - 10,11,16,18,23,25,27,29, - 13,16,18,23,25,27,29,31, - 16,18,23,25,27,29,31,33, - 18,23,25,27,29,31,33,36, - 23,25,27,29,31,33,36,38, - 25,27,29,31,33,36,38,40, - 27,29,31,33,36,38,40,42 -},{ - 9,13,15,17,19,21,22,24, - 13,13,17,19,21,22,24,25, - 15,17,19,21,22,24,25,27, - 17,19,21,22,24,25,27,28, - 19,21,22,24,25,27,28,30, - 21,22,24,25,27,28,30,32, - 22,24,25,27,28,30,32,33, - 24,25,27,28,30,32,33,35 -}}; - -static inline int decode_hrd_parameters(H264Context *h, SPS *sps){ - int cpb_count, i; - cpb_count = get_ue_golomb_31(&h->gb) + 1; - - if(cpb_count > 32U){ - av_log(h->avctx, AV_LOG_ERROR, "cpb_count %d invalid\n", cpb_count); - return -1; - } - - get_bits(&h->gb, 4); /* bit_rate_scale */ - get_bits(&h->gb, 4); /* cpb_size_scale */ - for(i=0; i<cpb_count; i++){ - get_ue_golomb_long(&h->gb); /* bit_rate_value_minus1 */ - get_ue_golomb_long(&h->gb); /* cpb_size_value_minus1 */ - get_bits1(&h->gb); /* cbr_flag */ - } - sps->initial_cpb_removal_delay_length = get_bits(&h->gb, 5) + 1; - sps->cpb_removal_delay_length = get_bits(&h->gb, 5) + 1; - sps->dpb_output_delay_length = get_bits(&h->gb, 5) + 1; - sps->time_offset_length = get_bits(&h->gb, 5); - sps->cpb_cnt = cpb_count; - return 0; -} - -static inline int decode_vui_parameters(H264Context *h, SPS *sps){ - int aspect_ratio_info_present_flag; - unsigned int aspect_ratio_idc; - - aspect_ratio_info_present_flag= get_bits1(&h->gb); - - if( aspect_ratio_info_present_flag ) { - aspect_ratio_idc= get_bits(&h->gb, 8); - if( aspect_ratio_idc == EXTENDED_SAR ) { - sps->sar.num= get_bits(&h->gb, 16); - sps->sar.den= get_bits(&h->gb, 16); - }else if(aspect_ratio_idc < FF_ARRAY_ELEMS(pixel_aspect)){ - sps->sar= pixel_aspect[aspect_ratio_idc]; - }else{ - av_log(h->avctx, AV_LOG_ERROR, "illegal aspect ratio\n"); - return -1; - } - }else{ - sps->sar.num= - sps->sar.den= 0; - } -// s->avctx->aspect_ratio= sar_width*s->width / (float)(s->height*sar_height); - - if(get_bits1(&h->gb)){ /* overscan_info_present_flag */ - get_bits1(&h->gb); /* overscan_appropriate_flag */ - } - - sps->video_signal_type_present_flag = get_bits1(&h->gb); - if(sps->video_signal_type_present_flag){ - get_bits(&h->gb, 3); /* video_format */ - sps->full_range = get_bits1(&h->gb); /* video_full_range_flag */ - - sps->colour_description_present_flag = get_bits1(&h->gb); - if(sps->colour_description_present_flag){ - sps->color_primaries = get_bits(&h->gb, 8); /* colour_primaries */ - sps->color_trc = get_bits(&h->gb, 8); /* transfer_characteristics */ - sps->colorspace = get_bits(&h->gb, 8); /* matrix_coefficients */ - if (sps->color_primaries >= AVCOL_PRI_NB) - sps->color_primaries = AVCOL_PRI_UNSPECIFIED; - if (sps->color_trc >= AVCOL_TRC_NB) - sps->color_trc = AVCOL_TRC_UNSPECIFIED; - if (sps->colorspace >= AVCOL_SPC_NB) - sps->colorspace = AVCOL_SPC_UNSPECIFIED; - } - } - - if(get_bits1(&h->gb)){ /* chroma_location_info_present_flag */ - h->avctx->chroma_sample_location = get_ue_golomb(&h->gb)+1; /* chroma_sample_location_type_top_field */ - get_ue_golomb(&h->gb); /* chroma_sample_location_type_bottom_field */ - } - - sps->timing_info_present_flag = get_bits1(&h->gb); - if(sps->timing_info_present_flag){ - sps->num_units_in_tick = get_bits_long(&h->gb, 32); - sps->time_scale = get_bits_long(&h->gb, 32); - if(!sps->num_units_in_tick || !sps->time_scale){ - av_log(h->avctx, AV_LOG_ERROR, "time_scale/num_units_in_tick invalid or unsupported (%d/%d)\n", sps->time_scale, sps->num_units_in_tick); - return -1; - } - sps->fixed_frame_rate_flag = get_bits1(&h->gb); - } - - sps->nal_hrd_parameters_present_flag = get_bits1(&h->gb); - if(sps->nal_hrd_parameters_present_flag) - if(decode_hrd_parameters(h, sps) < 0) - return -1; - sps->vcl_hrd_parameters_present_flag = get_bits1(&h->gb); - if(sps->vcl_hrd_parameters_present_flag) - if(decode_hrd_parameters(h, sps) < 0) - return -1; - if(sps->nal_hrd_parameters_present_flag || sps->vcl_hrd_parameters_present_flag) - get_bits1(&h->gb); /* low_delay_hrd_flag */ - sps->pic_struct_present_flag = get_bits1(&h->gb); - if(!get_bits_left(&h->gb)) - return 0; - sps->bitstream_restriction_flag = get_bits1(&h->gb); - if(sps->bitstream_restriction_flag){ - get_bits1(&h->gb); /* motion_vectors_over_pic_boundaries_flag */ - get_ue_golomb(&h->gb); /* max_bytes_per_pic_denom */ - get_ue_golomb(&h->gb); /* max_bits_per_mb_denom */ - get_ue_golomb(&h->gb); /* log2_max_mv_length_horizontal */ - get_ue_golomb(&h->gb); /* log2_max_mv_length_vertical */ - sps->num_reorder_frames= get_ue_golomb(&h->gb); - get_ue_golomb(&h->gb); /*max_dec_frame_buffering*/ - - if (get_bits_left(&h->gb) < 0) { - sps->num_reorder_frames=0; - sps->bitstream_restriction_flag= 0; - } - - if(sps->num_reorder_frames > 16U /*max_dec_frame_buffering || max_dec_frame_buffering > 16*/){ - av_log(h->avctx, AV_LOG_ERROR, "illegal num_reorder_frames %d\n", sps->num_reorder_frames); - return -1; - } - } - - if (get_bits_left(&h->gb) < 0) { - av_log(h->avctx, AV_LOG_ERROR, "Overread VUI by %d bits\n", -get_bits_left(&h->gb)); - return AVERROR_INVALIDDATA; - } - - return 0; -} - -static void decode_scaling_list(H264Context *h, uint8_t *factors, int size, - const uint8_t *jvt_list, const uint8_t *fallback_list){ - int i, last = 8, next = 8; - const uint8_t *scan = size == 16 ? zigzag_scan : ff_zigzag_direct; - if(!get_bits1(&h->gb)) /* matrix not written, we use the predicted one */ - memcpy(factors, fallback_list, size*sizeof(uint8_t)); - else - for(i=0;i<size;i++){ - if(next) - next = (last + get_se_golomb(&h->gb)) & 0xff; - if(!i && !next){ /* matrix not written, we use the preset one */ - memcpy(factors, jvt_list, size*sizeof(uint8_t)); - break; - } - last = factors[scan[i]] = next ? next : last; - } -} - -static void decode_scaling_matrices(H264Context *h, SPS *sps, PPS *pps, int is_sps, - uint8_t (*scaling_matrix4)[16], uint8_t (*scaling_matrix8)[64]){ - int fallback_sps = !is_sps && sps->scaling_matrix_present; - const uint8_t *fallback[4] = { - fallback_sps ? sps->scaling_matrix4[0] : default_scaling4[0], - fallback_sps ? sps->scaling_matrix4[3] : default_scaling4[1], - fallback_sps ? sps->scaling_matrix8[0] : default_scaling8[0], - fallback_sps ? sps->scaling_matrix8[3] : default_scaling8[1] - }; - if(get_bits1(&h->gb)){ - sps->scaling_matrix_present |= is_sps; - decode_scaling_list(h,scaling_matrix4[0],16,default_scaling4[0],fallback[0]); // Intra, Y - decode_scaling_list(h,scaling_matrix4[1],16,default_scaling4[0],scaling_matrix4[0]); // Intra, Cr - decode_scaling_list(h,scaling_matrix4[2],16,default_scaling4[0],scaling_matrix4[1]); // Intra, Cb - decode_scaling_list(h,scaling_matrix4[3],16,default_scaling4[1],fallback[1]); // Inter, Y - decode_scaling_list(h,scaling_matrix4[4],16,default_scaling4[1],scaling_matrix4[3]); // Inter, Cr - decode_scaling_list(h,scaling_matrix4[5],16,default_scaling4[1],scaling_matrix4[4]); // Inter, Cb - if(is_sps || pps->transform_8x8_mode){ - decode_scaling_list(h,scaling_matrix8[0],64,default_scaling8[0],fallback[2]); // Intra, Y - decode_scaling_list(h,scaling_matrix8[3],64,default_scaling8[1],fallback[3]); // Inter, Y - if(sps->chroma_format_idc == 3){ - decode_scaling_list(h,scaling_matrix8[1],64,default_scaling8[0],scaling_matrix8[0]); // Intra, Cr - decode_scaling_list(h,scaling_matrix8[4],64,default_scaling8[1],scaling_matrix8[3]); // Inter, Cr - decode_scaling_list(h,scaling_matrix8[2],64,default_scaling8[0],scaling_matrix8[1]); // Intra, Cb - decode_scaling_list(h,scaling_matrix8[5],64,default_scaling8[1],scaling_matrix8[4]); // Inter, Cb - } - } - } -} - -int ff_h264_decode_seq_parameter_set(H264Context *h){ - int profile_idc, level_idc, constraint_set_flags = 0; - unsigned int sps_id; - int i, log2_max_frame_num_minus4; - SPS *sps; - - profile_idc= get_bits(&h->gb, 8); - constraint_set_flags |= get_bits1(&h->gb) << 0; //constraint_set0_flag - constraint_set_flags |= get_bits1(&h->gb) << 1; //constraint_set1_flag - constraint_set_flags |= get_bits1(&h->gb) << 2; //constraint_set2_flag - constraint_set_flags |= get_bits1(&h->gb) << 3; //constraint_set3_flag - constraint_set_flags |= get_bits1(&h->gb) << 4; //constraint_set4_flag - constraint_set_flags |= get_bits1(&h->gb) << 5; //constraint_set5_flag - get_bits(&h->gb, 2); // reserved - level_idc= get_bits(&h->gb, 8); - sps_id= get_ue_golomb_31(&h->gb); - - if(sps_id >= MAX_SPS_COUNT) { - av_log(h->avctx, AV_LOG_ERROR, "sps_id (%d) out of range\n", sps_id); - return -1; - } - sps= av_mallocz(sizeof(SPS)); - if(sps == NULL) - return -1; - - sps->time_offset_length = 24; - sps->profile_idc= profile_idc; - sps->constraint_set_flags = constraint_set_flags; - sps->level_idc= level_idc; - sps->full_range = -1; - - memset(sps->scaling_matrix4, 16, sizeof(sps->scaling_matrix4)); - memset(sps->scaling_matrix8, 16, sizeof(sps->scaling_matrix8)); - sps->scaling_matrix_present = 0; - sps->colorspace = 2; //AVCOL_SPC_UNSPECIFIED - - if (sps->profile_idc == 100 || sps->profile_idc == 110 || - sps->profile_idc == 122 || sps->profile_idc == 244 || - sps->profile_idc == 44 || sps->profile_idc == 83 || - sps->profile_idc == 86 || sps->profile_idc == 118 || - sps->profile_idc == 128 || sps->profile_idc == 144) { - sps->chroma_format_idc= get_ue_golomb_31(&h->gb); - if (sps->chroma_format_idc > 3U) { - av_log(h->avctx, AV_LOG_ERROR, "chroma_format_idc %d is illegal\n", sps->chroma_format_idc); - goto fail; - } else if(sps->chroma_format_idc == 3) { - sps->residual_color_transform_flag = get_bits1(&h->gb); - if(sps->residual_color_transform_flag) { - av_log(h->avctx, AV_LOG_ERROR, "separate color planes are not supported\n"); - goto fail; - } - } - sps->bit_depth_luma = get_ue_golomb(&h->gb) + 8; - sps->bit_depth_chroma = get_ue_golomb(&h->gb) + 8; - if (sps->bit_depth_luma > 14U || sps->bit_depth_chroma > 14U || sps->bit_depth_luma != sps->bit_depth_chroma) { - av_log(h->avctx, AV_LOG_ERROR, "illegal bit depth value (%d, %d)\n", - sps->bit_depth_luma, sps->bit_depth_chroma); - goto fail; - } - sps->transform_bypass = get_bits1(&h->gb); - decode_scaling_matrices(h, sps, NULL, 1, sps->scaling_matrix4, sps->scaling_matrix8); - }else{ - sps->chroma_format_idc= 1; - sps->bit_depth_luma = 8; - sps->bit_depth_chroma = 8; - } - - log2_max_frame_num_minus4 = get_ue_golomb(&h->gb); - if (log2_max_frame_num_minus4 < MIN_LOG2_MAX_FRAME_NUM - 4 || - log2_max_frame_num_minus4 > MAX_LOG2_MAX_FRAME_NUM - 4) { - av_log(h->avctx, AV_LOG_ERROR, - "log2_max_frame_num_minus4 out of range (0-12): %d\n", - log2_max_frame_num_minus4); - goto fail; - } - sps->log2_max_frame_num = log2_max_frame_num_minus4 + 4; - - sps->poc_type= get_ue_golomb_31(&h->gb); - - if(sps->poc_type == 0){ //FIXME #define - unsigned t = get_ue_golomb(&h->gb); - if(t>12){ - av_log(h->avctx, AV_LOG_ERROR, "log2_max_poc_lsb (%d) is out of range\n", t); - goto fail; - } - sps->log2_max_poc_lsb= t + 4; - } else if(sps->poc_type == 1){//FIXME #define - sps->delta_pic_order_always_zero_flag= get_bits1(&h->gb); - sps->offset_for_non_ref_pic= get_se_golomb(&h->gb); - sps->offset_for_top_to_bottom_field= get_se_golomb(&h->gb); - sps->poc_cycle_length = get_ue_golomb(&h->gb); - - if((unsigned)sps->poc_cycle_length >= FF_ARRAY_ELEMS(sps->offset_for_ref_frame)){ - av_log(h->avctx, AV_LOG_ERROR, "poc_cycle_length overflow %u\n", sps->poc_cycle_length); - goto fail; - } - - for(i=0; i<sps->poc_cycle_length; i++) - sps->offset_for_ref_frame[i]= get_se_golomb(&h->gb); - }else if(sps->poc_type != 2){ - av_log(h->avctx, AV_LOG_ERROR, "illegal POC type %d\n", sps->poc_type); - goto fail; - } - - sps->ref_frame_count= get_ue_golomb_31(&h->gb); - if (h->avctx->codec_tag == MKTAG('S', 'M', 'V', '2')) - sps->ref_frame_count= FFMAX(2, sps->ref_frame_count); - if(sps->ref_frame_count > MAX_PICTURE_COUNT-2 || sps->ref_frame_count > 16U){ - av_log(h->avctx, AV_LOG_ERROR, "too many reference frames\n"); - goto fail; - } - sps->gaps_in_frame_num_allowed_flag= get_bits1(&h->gb); - sps->mb_width = get_ue_golomb(&h->gb) + 1; - sps->mb_height= get_ue_golomb(&h->gb) + 1; - if((unsigned)sps->mb_width >= INT_MAX/16 || (unsigned)sps->mb_height >= INT_MAX/16 || - av_image_check_size(16*sps->mb_width, 16*sps->mb_height, 0, h->avctx)){ - av_log(h->avctx, AV_LOG_ERROR, "mb_width/height overflow\n"); - goto fail; - } - - sps->frame_mbs_only_flag= get_bits1(&h->gb); - if(!sps->frame_mbs_only_flag) - sps->mb_aff= get_bits1(&h->gb); - else - sps->mb_aff= 0; - - sps->direct_8x8_inference_flag= get_bits1(&h->gb); - -#ifndef ALLOW_INTERLACE - if(sps->mb_aff) - av_log(h->avctx, AV_LOG_ERROR, "MBAFF support not included; enable it at compile-time.\n"); -#endif - sps->crop= get_bits1(&h->gb); - if(sps->crop){ - int crop_vertical_limit = sps->chroma_format_idc & 2 ? 16 : 8; - int crop_horizontal_limit = sps->chroma_format_idc == 3 ? 16 : 8; - sps->crop_left = get_ue_golomb(&h->gb); - sps->crop_right = get_ue_golomb(&h->gb); - sps->crop_top = get_ue_golomb(&h->gb); - sps->crop_bottom= get_ue_golomb(&h->gb); - if (h->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) { - av_log(h->avctx, AV_LOG_DEBUG, - "discarding sps cropping, " - "original values are l:%u r:%u t:%u b:%u\n", - sps->crop_left, - sps->crop_right, - sps->crop_top, - sps->crop_bottom); - - sps->crop_left = - sps->crop_right = - sps->crop_top = - sps->crop_bottom = 0; - } - if(sps->crop_left || sps->crop_top){ - av_log(h->avctx, AV_LOG_ERROR, "insane cropping not completely supported, this could look slightly wrong ... (left: %d, top: %d)\n", sps->crop_left, sps->crop_top); - } - if(sps->crop_right >= crop_horizontal_limit || sps->crop_bottom >= crop_vertical_limit){ - av_log(h->avctx, AV_LOG_ERROR, "brainfart cropping not supported, cropping disabled (right: %d, bottom: %d)\n", sps->crop_right, sps->crop_bottom); - /* It is very unlikely that partial cropping will make anybody happy. - * Not cropping at all fixes for example playback of Sisvel 3D streams - * in applications supporting Sisvel 3D. */ - sps->crop_left = - sps->crop_right = - sps->crop_top = - sps->crop_bottom= 0; - } - }else{ - sps->crop_left = - sps->crop_right = - sps->crop_top = - sps->crop_bottom= 0; - } - - sps->vui_parameters_present_flag= get_bits1(&h->gb); - if( sps->vui_parameters_present_flag ) - if (decode_vui_parameters(h, sps) < 0) - goto fail; - - if(!sps->sar.den) - sps->sar.den= 1; - - if(h->avctx->debug&FF_DEBUG_PICT_INFO){ - static const char csp[4][5] = { "Gray", "420", "422", "444" }; - av_log(h->avctx, AV_LOG_DEBUG, "sps:%u profile:%d/%d poc:%d ref:%d %dx%d %s %s crop:%d/%d/%d/%d %s %s %d/%d b%d reo:%d\n", - sps_id, sps->profile_idc, sps->level_idc, - sps->poc_type, - sps->ref_frame_count, - sps->mb_width, sps->mb_height, - sps->frame_mbs_only_flag ? "FRM" : (sps->mb_aff ? "MB-AFF" : "PIC-AFF"), - sps->direct_8x8_inference_flag ? "8B8" : "", - sps->crop_left, sps->crop_right, - sps->crop_top, sps->crop_bottom, - sps->vui_parameters_present_flag ? "VUI" : "", - csp[sps->chroma_format_idc], - sps->timing_info_present_flag ? sps->num_units_in_tick : 0, - sps->timing_info_present_flag ? sps->time_scale : 0, - sps->bit_depth_luma, - h->sps.bitstream_restriction_flag ? sps->num_reorder_frames : -1 - ); - } - sps->new = 1; - - av_free(h->sps_buffers[sps_id]); - h->sps_buffers[sps_id] = sps; - h->sps = *sps; - h->current_sps_id = sps_id; - - return 0; -fail: - av_free(sps); - return -1; -} - -static void -build_qp_table(PPS *pps, int t, int index, const int depth) -{ - int i; - const int max_qp = 51 + 6*(depth-8); - for(i = 0; i < max_qp+1; i++) - pps->chroma_qp_table[t][i] = ff_h264_chroma_qp[depth-8][av_clip(i + index, 0, max_qp)]; -} - -static int more_rbsp_data_in_pps(H264Context *h, PPS *pps) -{ - const SPS *sps = h->sps_buffers[pps->sps_id]; - int profile_idc = sps->profile_idc; - - if ((profile_idc == 66 || profile_idc == 77 || - profile_idc == 88) && (sps->constraint_set_flags & 7)) { - av_log(h->avctx, AV_LOG_VERBOSE, - "Current profile doesn't provide more RBSP data in PPS, skipping\n"); - return 0; - } - - return 1; -} - -int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length){ - unsigned int pps_id= get_ue_golomb(&h->gb); - PPS *pps; - const int qp_bd_offset = 6*(h->sps.bit_depth_luma-8); - int bits_left; - - if(pps_id >= MAX_PPS_COUNT) { - av_log(h->avctx, AV_LOG_ERROR, "pps_id (%d) out of range\n", pps_id); - return -1; - } else if (h->sps.bit_depth_luma > 14) { - av_log(h->avctx, AV_LOG_ERROR, "Invalid luma bit depth=%d\n", h->sps.bit_depth_luma); - return AVERROR_INVALIDDATA; - } else if (h->sps.bit_depth_luma == 11 || h->sps.bit_depth_luma == 13) { - av_log(h->avctx, AV_LOG_ERROR, "Unimplemented luma bit depth=%d\n", h->sps.bit_depth_luma); - return AVERROR_PATCHWELCOME; - } - - pps= av_mallocz(sizeof(PPS)); - if(pps == NULL) - return -1; - pps->sps_id= get_ue_golomb_31(&h->gb); - if((unsigned)pps->sps_id>=MAX_SPS_COUNT || h->sps_buffers[pps->sps_id] == NULL){ - av_log(h->avctx, AV_LOG_ERROR, "sps_id out of range\n"); - goto fail; - } - - pps->cabac= get_bits1(&h->gb); - pps->pic_order_present= get_bits1(&h->gb); - pps->slice_group_count= get_ue_golomb(&h->gb) + 1; - if(pps->slice_group_count > 1 ){ - pps->mb_slice_group_map_type= get_ue_golomb(&h->gb); - av_log(h->avctx, AV_LOG_ERROR, "FMO not supported\n"); - switch(pps->mb_slice_group_map_type){ - case 0: -#if 0 -| for( i = 0; i <= num_slice_groups_minus1; i++ ) | | | -| run_length[ i ] |1 |ue(v) | -#endif - break; - case 2: -#if 0 -| for( i = 0; i < num_slice_groups_minus1; i++ ) | | | -|{ | | | -| top_left_mb[ i ] |1 |ue(v) | -| bottom_right_mb[ i ] |1 |ue(v) | -| } | | | -#endif - break; - case 3: - case 4: - case 5: -#if 0 -| slice_group_change_direction_flag |1 |u(1) | -| slice_group_change_rate_minus1 |1 |ue(v) | -#endif - break; - case 6: -#if 0 -| slice_group_id_cnt_minus1 |1 |ue(v) | -| for( i = 0; i <= slice_group_id_cnt_minus1; i++ | | | -|) | | | -| slice_group_id[ i ] |1 |u(v) | -#endif - break; - } - } - pps->ref_count[0]= get_ue_golomb(&h->gb) + 1; - pps->ref_count[1]= get_ue_golomb(&h->gb) + 1; - if(pps->ref_count[0]-1 > 32-1 || pps->ref_count[1]-1 > 32-1){ - av_log(h->avctx, AV_LOG_ERROR, "reference overflow (pps)\n"); - goto fail; - } - - pps->weighted_pred= get_bits1(&h->gb); - pps->weighted_bipred_idc= get_bits(&h->gb, 2); - pps->init_qp= get_se_golomb(&h->gb) + 26 + qp_bd_offset; - pps->init_qs= get_se_golomb(&h->gb) + 26 + qp_bd_offset; - pps->chroma_qp_index_offset[0]= get_se_golomb(&h->gb); - pps->deblocking_filter_parameters_present= get_bits1(&h->gb); - pps->constrained_intra_pred= get_bits1(&h->gb); - pps->redundant_pic_cnt_present = get_bits1(&h->gb); - - pps->transform_8x8_mode= 0; - h->dequant_coeff_pps= -1; //contents of sps/pps can change even if id doesn't, so reinit - memcpy(pps->scaling_matrix4, h->sps_buffers[pps->sps_id]->scaling_matrix4, sizeof(pps->scaling_matrix4)); - memcpy(pps->scaling_matrix8, h->sps_buffers[pps->sps_id]->scaling_matrix8, sizeof(pps->scaling_matrix8)); - - bits_left = bit_length - get_bits_count(&h->gb); - if(bits_left > 0 && more_rbsp_data_in_pps(h, pps)){ - pps->transform_8x8_mode= get_bits1(&h->gb); - decode_scaling_matrices(h, h->sps_buffers[pps->sps_id], pps, 0, pps->scaling_matrix4, pps->scaling_matrix8); - pps->chroma_qp_index_offset[1]= get_se_golomb(&h->gb); //second_chroma_qp_index_offset - } else { - pps->chroma_qp_index_offset[1]= pps->chroma_qp_index_offset[0]; - } - - build_qp_table(pps, 0, pps->chroma_qp_index_offset[0], h->sps.bit_depth_luma); - build_qp_table(pps, 1, pps->chroma_qp_index_offset[1], h->sps.bit_depth_luma); - if(pps->chroma_qp_index_offset[0] != pps->chroma_qp_index_offset[1]) - pps->chroma_qp_diff= 1; - - if(h->avctx->debug&FF_DEBUG_PICT_INFO){ - av_log(h->avctx, AV_LOG_DEBUG, "pps:%u sps:%u %s slice_groups:%d ref:%d/%d %s qp:%d/%d/%d/%d %s %s %s %s\n", - pps_id, pps->sps_id, - pps->cabac ? "CABAC" : "CAVLC", - pps->slice_group_count, - pps->ref_count[0], pps->ref_count[1], - pps->weighted_pred ? "weighted" : "", - pps->init_qp, pps->init_qs, pps->chroma_qp_index_offset[0], pps->chroma_qp_index_offset[1], - pps->deblocking_filter_parameters_present ? "LPAR" : "", - pps->constrained_intra_pred ? "CONSTR" : "", - pps->redundant_pic_cnt_present ? "REDU" : "", - pps->transform_8x8_mode ? "8x8DCT" : "" - ); - } - - av_free(h->pps_buffers[pps_id]); - h->pps_buffers[pps_id]= pps; - return 0; -fail: - av_free(pps); - return -1; -} |