diff --git a/libavcodec/h264_ps.c b/libavcodec/h264_ps.c index b47a89de35..c25e9527b0 100644 --- a/libavcodec/h264_ps.c +++ b/libavcodec/h264_ps.c @@ -35,205 +35,202 @@ #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}, +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 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) +#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[3][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) - }, +const uint8_t ff_h264_chroma_qp[3][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) }, }; -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_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 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){ +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){ + 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; igb); /* bit_rate_value_minus1 */ get_ue_golomb_long(&h->gb); /* cpb_size_value_minus1 */ - get_bits1(&h->gb); /* cbr_flag */ + 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; + 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){ +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); + 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{ + 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; + } else { + sps->sar.num = + sps->sar.den = 0; } - if(get_bits1(&h->gb)){ /* overscan_info_present_flag */ + 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 */ + 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){ + 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; + sps->color_primaries = AVCOL_PRI_UNSPECIFIED; if (sps->color_trc >= AVCOL_TRC_NB) - sps->color_trc = AVCOL_TRC_UNSPECIFIED; + sps->color_trc = AVCOL_TRC_UNSPECIFIED; if (sps->colorspace >= AVCOL_SPC_NB) - sps->colorspace = AVCOL_SPC_UNSPECIFIED; + 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 */ + /* chroma_location_info_present_flag */ + if (get_bits1(&h->gb)) { + /* chroma_sample_location_type_top_field */ + h->avctx->chroma_sample_location = get_ue_golomb(&h->gb) + 1; 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){ + 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); + 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) + 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) + 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) + 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); sps->bitstream_restriction_flag = get_bits1(&h->gb); - if(sps->bitstream_restriction_flag){ + 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); + 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; + 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); + 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)); + av_log(h->avctx, AV_LOG_ERROR, + "Overread VUI by %d bits\n", -get_bits_left(&h->gb)); return AVERROR_INVALIDDATA; } @@ -241,25 +238,30 @@ static inline int decode_vui_parameters(H264Context *h, SPS *sps){ } static void decode_scaling_list(H264Context *h, uint8_t *factors, int size, - const uint8_t *jvt_list, const uint8_t *fallback_list){ + 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)); + 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;igb)) & 0xff; - if(!i && !next){ /* matrix not written, we use the preset one */ - memcpy(factors, jvt_list, size*sizeof(uint8_t)); - break; + 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; } - 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]){ +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], @@ -267,56 +269,57 @@ static void decode_scaling_matrices(H264Context *h, SPS *sps, PPS *pps, int is_s fallback_sps ? sps->scaling_matrix8[0] : default_scaling8[0], fallback_sps ? sps->scaling_matrix8[3] : default_scaling8[1] }; - if(get_bits1(&h->gb)){ + 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 - 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[2],64,default_scaling8[0],scaling_matrix8[1]); // Intra, Cb + 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 + 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[2], 64, default_scaling8[0], scaling_matrix8[1]); // Intra, Cb } - 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[4],64,default_scaling8[1],scaling_matrix8[3]); // Inter, Cr - decode_scaling_list(h,scaling_matrix8[5],64,default_scaling8[1],scaling_matrix8[4]); // Inter, Cb + 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[4], 64, default_scaling8[1], scaling_matrix8[3]); // Inter, Cr + 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 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 + 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 get_bits(&h->gb, 4); // reserved - level_idc= get_bits(&h->gb, 8); - sps_id= get_ue_golomb_31(&h->gb); + level_idc = get_bits(&h->gb, 8); + sps_id = get_ue_golomb_31(&h->gb); - if(sps_id >= MAX_SPS_COUNT) { + 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) + sps = av_mallocz(sizeof(SPS)); + if (sps == NULL) return -1; - sps->time_offset_length = 24; - sps->profile_idc= profile_idc; + sps->time_offset_length = 24; + sps->profile_idc = profile_idc; sps->constraint_set_flags = constraint_set_flags; - sps->level_idc= level_idc; + sps->level_idc = level_idc; memset(sps->scaling_matrix4, 16, sizeof(sps->scaling_matrix4)); memset(sps->scaling_matrix8, 16, sizeof(sps->scaling_matrix8)); @@ -327,21 +330,24 @@ int ff_h264_decode_seq_parameter_set(H264Context *h){ 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 > 3) { - av_log(h->avctx, AV_LOG_ERROR, "chroma_format_idc (%u) out of range\n", sps->chroma_format_idc); + sps->chroma_format_idc = get_ue_golomb_31(&h->gb); + if (sps->chroma_format_idc > 3) { + av_log(h->avctx, AV_LOG_ERROR, + "chroma_format_idc (%u) out of range\n", + sps->chroma_format_idc); goto fail; - } else if(sps->chroma_format_idc == 3) { + } else if (sps->chroma_format_idc == 3) { sps->residual_color_transform_flag = get_bits1(&h->gb); } sps->bit_depth_luma = get_ue_golomb(&h->gb) + 8; sps->bit_depth_chroma = get_ue_golomb(&h->gb) + 8; 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; + 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); @@ -354,60 +360,67 @@ int ff_h264_decode_seq_parameter_set(H264Context *h){ } sps->log2_max_frame_num = log2_max_frame_num_minus4 + 4; - sps->poc_type= get_ue_golomb_31(&h->gb); + sps->poc_type = get_ue_golomb_31(&h->gb); - if(sps->poc_type == 0){ //FIXME #define - sps->log2_max_poc_lsb= get_ue_golomb(&h->gb) + 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 (sps->poc_type == 0) { // FIXME #define + sps->log2_max_poc_lsb = get_ue_golomb(&h->gb) + 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); + 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; ipoc_cycle_length; i++) - sps->offset_for_ref_frame[i]= get_se_golomb(&h->gb); - }else if(sps->poc_type != 2){ + 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(sps->ref_frame_count > MAX_PICTURE_COUNT-2 || sps->ref_frame_count >= 32U){ + sps->ref_frame_count = get_ue_golomb_31(&h->gb); + if (sps->ref_frame_count > MAX_PICTURE_COUNT - 2 || + sps->ref_frame_count >= 32U) { 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)){ + 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); + 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->mb_aff = 0; - sps->direct_8x8_inference_flag= get_bits1(&h->gb); - if(!sps->frame_mbs_only_flag && !sps->direct_8x8_inference_flag){ - av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n"); + sps->direct_8x8_inference_flag = get_bits1(&h->gb); + if (!sps->frame_mbs_only_flag && !sps->direct_8x8_inference_flag) { + av_log(h->avctx, AV_LOG_ERROR, + "This stream was generated by a broken encoder, invalid 8x8 inference\n"); goto fail; } #ifndef ALLOW_INTERLACE - if(sps->mb_aff) - av_log(h->avctx, AV_LOG_ERROR, "MBAFF support not included; enable it at compile-time.\n"); + 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){ + sps->crop = get_bits1(&h->gb); + if (sps->crop) { int crop_left = get_ue_golomb(&h->gb); int crop_right = get_ue_golomb(&h->gb); int crop_top = get_ue_golomb(&h->gb); @@ -415,23 +428,25 @@ int ff_h264_decode_seq_parameter_set(H264Context *h){ 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", crop_left, crop_right, - crop_top, crop_bottom); + "values are l:%u r:%u t:%u b:%u\n", + crop_left, crop_right, crop_top, crop_bottom); sps->crop_left = sps->crop_right = sps->crop_top = sps->crop_bottom = 0; } else { - int vsub = (sps->chroma_format_idc == 1) ? 1 : 0; - int hsub = (sps->chroma_format_idc == 1 || sps->chroma_format_idc == 2) ? 1 : 0; + int vsub = (sps->chroma_format_idc == 1) ? 1 : 0; + int hsub = (sps->chroma_format_idc == 1 || + sps->chroma_format_idc == 2) ? 1 : 0; int step_x = 1 << hsub; int step_y = (2 - sps->frame_mbs_only_flag) << vsub; if (crop_left & (0x1F >> (sps->bit_depth_luma > 8)) && !(h->avctx->flags & CODEC_FLAG_UNALIGNED)) { crop_left &= ~(0x1F >> (sps->bit_depth_luma > 8)); - av_log(h->avctx, AV_LOG_WARNING, "Reducing left cropping to %d " + av_log(h->avctx, AV_LOG_WARNING, + "Reducing left cropping to %d " "chroma samples to preserve alignment.\n", crop_left); } @@ -441,25 +456,26 @@ int ff_h264_decode_seq_parameter_set(H264Context *h){ sps->crop_top = crop_top * step_y; sps->crop_bottom = crop_bottom * step_y; } - }else{ - sps->crop_left = - sps->crop_right = - sps->crop_top = - sps->crop_bottom= 0; - sps->crop = 0; + } else { + sps->crop_left = + sps->crop_right = + sps->crop_top = + sps->crop_bottom = + sps->crop = 0; } - sps->vui_parameters_present_flag= get_bits1(&h->gb); - if( sps->vui_parameters_present_flag ) + 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 (!sps->sar.den) + sps->sar.den = 1; - if(h->avctx->debug&FF_DEBUG_PICT_INFO){ + 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\n", + 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\n", sps_id, sps->profile_idc, sps->level_idc, sps->poc_type, sps->ref_frame_count, @@ -471,8 +487,7 @@ int ff_h264_decode_seq_parameter_set(H264Context *h){ 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->timing_info_present_flag ? sps->time_scale : 0); } sps->new = 1; @@ -482,121 +497,132 @@ int ff_h264_decode_seq_parameter_set(H264Context *h){ 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) +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)]; + 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)]; } -int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length){ - unsigned int pps_id= get_ue_golomb(&h->gb); +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); + const int qp_bd_offset = 6 * (h->sps.bit_depth_luma - 8); int bits_left; - if(pps_id >= MAX_PPS_COUNT) { + 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 > 10) { - av_log(h->avctx, AV_LOG_ERROR, "Unimplemented luma bit depth=%d (max=10)\n", h->sps.bit_depth_luma); + av_log(h->avctx, AV_LOG_ERROR, + "Unimplemented luma bit depth=%d (max=10)\n", + h->sps.bit_depth_luma); return AVERROR_PATCHWELCOME; } - pps= av_mallocz(sizeof(PPS)); - if(pps == NULL) + 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){ + 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); + 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){ + 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) | + | 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) | -| } | | | + | 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) | + | 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) | + | 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){ + 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->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)); + pps->transform_8x8_mode = 0; + // contents of sps/pps can change even if id doesn't, so reinit + h->dequant_coeff_pps = -1; + 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 && (bits_left > 8 || show_bits(&h->gb, bits_left) != 1 << (bits_left - 1))) { - 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 + 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); + // second_chroma_qp_index_offset + pps->chroma_qp_index_offset[1] = get_se_golomb(&h->gb); } else { - pps->chroma_qp_index_offset[1]= pps->chroma_qp_index_offset[0]; + 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; + 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", + 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, @@ -606,13 +632,13 @@ int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length){ pps->deblocking_filter_parameters_present ? "LPAR" : "", pps->constrained_intra_pred ? "CONSTR" : "", pps->redundant_pic_cnt_present ? "REDU" : "", - pps->transform_8x8_mode ? "8x8DCT" : "" - ); + pps->transform_8x8_mode ? "8x8DCT" : ""); } av_free(h->pps_buffers[pps_id]); - h->pps_buffers[pps_id]= pps; + h->pps_buffers[pps_id] = pps; return 0; + fail: av_free(pps); return -1;