| #include <linux/kernel.h> |
| #include <linux/types.h> |
| #include <linux/vmalloc.h> |
| #include <linux/mm.h> |
| #include <linux/string.h> |
| |
| #include "aml_hevc_parser.h" |
| #include "../utils/get_bits.h" |
| #include "../utils/put_bits.h" |
| #include "../utils/golomb.h" |
| #include "../utils/common.h" |
| #include "utils.h" |
| |
| const u8 ff_hevc_diag_scan4x4_x[16] = { |
| 0, 0, 1, 0, |
| 1, 2, 0, 1, |
| 2, 3, 1, 2, |
| 3, 2, 3, 3, |
| }; |
| |
| const u8 ff_hevc_diag_scan4x4_y[16] = { |
| 0, 1, 0, 2, |
| 1, 0, 3, 2, |
| 1, 0, 3, 2, |
| 1, 3, 2, 3, |
| }; |
| |
| const u8 ff_hevc_diag_scan8x8_x[64] = { |
| 0, 0, 1, 0, |
| 1, 2, 0, 1, |
| 2, 3, 0, 1, |
| 2, 3, 4, 0, |
| 1, 2, 3, 4, |
| 5, 0, 1, 2, |
| 3, 4, 5, 6, |
| 0, 1, 2, 3, |
| 4, 5, 6, 7, |
| 1, 2, 3, 4, |
| 5, 6, 7, 2, |
| 3, 4, 5, 6, |
| 7, 3, 4, 5, |
| 6, 7, 4, 5, |
| 6, 7, 5, 6, |
| 7, 6, 7, 7, |
| }; |
| |
| const u8 ff_hevc_diag_scan8x8_y[64] = { |
| 0, 1, 0, 2, |
| 1, 0, 3, 2, |
| 1, 0, 4, 3, |
| 2, 1, 0, 5, |
| 4, 3, 2, 1, |
| 0, 6, 5, 4, |
| 3, 2, 1, 0, |
| 7, 6, 5, 4, |
| 3, 2, 1, 0, |
| 7, 6, 5, 4, |
| 3, 2, 1, 7, |
| 6, 5, 4, 3, |
| 2, 7, 6, 5, |
| 4, 3, 7, 6, |
| 5, 4, 7, 6, |
| 5, 7, 6, 7, |
| }; |
| |
| static const u8 default_scaling_list_intra[] = { |
| 16, 16, 16, 16, 17, 18, 21, 24, |
| 16, 16, 16, 16, 17, 19, 22, 25, |
| 16, 16, 17, 18, 20, 22, 25, 29, |
| 16, 16, 18, 21, 24, 27, 31, 36, |
| 17, 17, 20, 24, 30, 35, 41, 47, |
| 18, 19, 22, 27, 35, 44, 54, 65, |
| 21, 22, 25, 31, 41, 54, 70, 88, |
| 24, 25, 29, 36, 47, 65, 88, 115 |
| }; |
| |
| static const u8 default_scaling_list_inter[] = { |
| 16, 16, 16, 16, 17, 18, 20, 24, |
| 16, 16, 16, 17, 18, 20, 24, 25, |
| 16, 16, 17, 18, 20, 24, 25, 28, |
| 16, 17, 18, 20, 24, 25, 28, 33, |
| 17, 18, 20, 24, 25, 28, 33, 41, |
| 18, 20, 24, 25, 28, 33, 41, 54, |
| 20, 24, 25, 28, 33, 41, 54, 71, |
| 24, 25, 28, 33, 41, 54, 71, 91 |
| }; |
| |
| static const struct AVRational vui_sar[] = { |
| { 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 u8 hevc_sub_width_c[] = { |
| 1, 2, 2, 1 |
| }; |
| |
| static const u8 hevc_sub_height_c[] = { |
| 1, 2, 1, 1 |
| }; |
| |
| static int decode_profile_tier_level(struct get_bits_context *gb, struct PTLCommon *ptl) |
| { |
| int i; |
| |
| if (get_bits_left(gb) < 2+1+5 + 32 + 4 + 16 + 16 + 12) |
| return -1; |
| |
| ptl->profile_space = get_bits(gb, 2); |
| ptl->tier_flag = get_bits1(gb); |
| ptl->profile_idc = get_bits(gb, 5); |
| if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN) |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "Main profile bitstream\n"); |
| else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10) |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "Main 10 profile bitstream\n"); |
| else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE) |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "Main Still Picture profile bitstream\n"); |
| else if (ptl->profile_idc == FF_PROFILE_HEVC_REXT) |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "Range Extension profile bitstream\n"); |
| else |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "Unknown HEVC profile: %d\n", ptl->profile_idc); |
| |
| for (i = 0; i < 32; i++) { |
| ptl->profile_compatibility_flag[i] = get_bits1(gb); |
| |
| if (ptl->profile_idc == 0 && i > 0 && ptl->profile_compatibility_flag[i]) |
| ptl->profile_idc = i; |
| } |
| ptl->progressive_source_flag = get_bits1(gb); |
| ptl->interlaced_source_flag = get_bits1(gb); |
| ptl->non_packed_constraint_flag = get_bits1(gb); |
| ptl->frame_only_constraint_flag = get_bits1(gb); |
| |
| skip_bits(gb, 16); // XXX_reserved_zero_44bits[0..15] |
| skip_bits(gb, 16); // XXX_reserved_zero_44bits[16..31] |
| skip_bits(gb, 12); // XXX_reserved_zero_44bits[32..43] |
| |
| return 0; |
| } |
| |
| static int parse_ptl(struct get_bits_context *gb, struct PTL *ptl, int max_num_sub_layers) |
| { |
| int i; |
| if (decode_profile_tier_level(gb, &ptl->general_ptl) < 0 || |
| get_bits_left(gb) < 8 + (8*2 * (max_num_sub_layers - 1 > 0))) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "PTL information too short\n"); |
| return -1; |
| } |
| |
| ptl->general_ptl.level_idc = get_bits(gb, 8); |
| |
| for (i = 0; i < max_num_sub_layers - 1; i++) { |
| ptl->sub_layer_profile_present_flag[i] = get_bits1(gb); |
| ptl->sub_layer_level_present_flag[i] = get_bits1(gb); |
| } |
| |
| if (max_num_sub_layers - 1> 0) |
| for (i = max_num_sub_layers - 1; i < 8; i++) |
| skip_bits(gb, 2); // reserved_zero_2bits[i] |
| for (i = 0; i < max_num_sub_layers - 1; i++) { |
| if (ptl->sub_layer_profile_present_flag[i] && |
| decode_profile_tier_level(gb, &ptl->sub_layer_ptl[i]) < 0) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "PTL information for sublayer %i too short\n", i); |
| return -1; |
| } |
| if (ptl->sub_layer_level_present_flag[i]) { |
| if (get_bits_left(gb) < 8) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Not enough data for sublayer %i level_idc\n", i); |
| return -1; |
| } else |
| ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static void decode_sublayer_hrd(struct get_bits_context *gb, |
| u32 nb_cpb, int subpic_params_present) |
| { |
| int i; |
| |
| for (i = 0; i < nb_cpb; i++) { |
| get_ue_golomb_long(gb); // bit_rate_value_minus1 |
| get_ue_golomb_long(gb); // cpb_size_value_minus1 |
| |
| if (subpic_params_present) { |
| get_ue_golomb_long(gb); // cpb_size_du_value_minus1 |
| get_ue_golomb_long(gb); // bit_rate_du_value_minus1 |
| } |
| skip_bits1(gb); // cbr_flag |
| } |
| } |
| |
| static int decode_hrd(struct get_bits_context *gb, |
| int common_inf_present, int max_sublayers) |
| { |
| int nal_params_present = 0, vcl_params_present = 0; |
| int subpic_params_present = 0; |
| int i; |
| |
| if (common_inf_present) { |
| nal_params_present = get_bits1(gb); |
| vcl_params_present = get_bits1(gb); |
| |
| if (nal_params_present || vcl_params_present) { |
| subpic_params_present = get_bits1(gb); |
| |
| if (subpic_params_present) { |
| skip_bits(gb, 8); // tick_divisor_minus2 |
| skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1 |
| skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag |
| skip_bits(gb, 5); // dpb_output_delay_du_length_minus1 |
| } |
| |
| skip_bits(gb, 4); // bit_rate_scale |
| skip_bits(gb, 4); // cpb_size_scale |
| |
| if (subpic_params_present) |
| skip_bits(gb, 4); // cpb_size_du_scale |
| |
| skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1 |
| skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1 |
| skip_bits(gb, 5); // dpb_output_delay_length_minus1 |
| } |
| } |
| |
| for (i = 0; i < max_sublayers; i++) { |
| int low_delay = 0; |
| u32 nb_cpb = 1; |
| int fixed_rate = get_bits1(gb); |
| |
| if (!fixed_rate) |
| fixed_rate = get_bits1(gb); |
| |
| if (fixed_rate) |
| get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1 |
| else |
| low_delay = get_bits1(gb); |
| |
| if (!low_delay) { |
| nb_cpb = get_ue_golomb_long(gb) + 1; |
| if (nb_cpb < 1 || nb_cpb > 32) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "nb_cpb %d invalid\n", nb_cpb); |
| return -1; |
| } |
| } |
| |
| if (nal_params_present) |
| decode_sublayer_hrd(gb, nb_cpb, subpic_params_present); |
| if (vcl_params_present) |
| decode_sublayer_hrd(gb, nb_cpb, subpic_params_present); |
| } |
| return 0; |
| } |
| |
| int ff_hevc_parse_vps(struct get_bits_context *gb, struct h265_VPS_t *vps) |
| { |
| int i,j; |
| int vps_id = 0; |
| |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "Decoding VPS\n"); |
| |
| vps_id = get_bits(gb, 4); |
| if (vps_id >= HEVC_MAX_VPS_COUNT) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "VPS id out of range: %d\n", vps_id); |
| goto err; |
| } |
| |
| if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "vps_reserved_three_2bits is not three\n"); |
| goto err; |
| } |
| |
| vps->vps_max_layers = get_bits(gb, 6) + 1; |
| vps->vps_max_sub_layers = get_bits(gb, 3) + 1; |
| vps->vps_temporal_id_nesting_flag = get_bits1(gb); |
| |
| if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n"); |
| goto err; |
| } |
| |
| if (vps->vps_max_sub_layers > HEVC_MAX_SUB_LAYERS) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "vps_max_sub_layers out of range: %d\n", |
| vps->vps_max_sub_layers); |
| goto err; |
| } |
| |
| if (parse_ptl(gb, &vps->ptl, vps->vps_max_sub_layers) < 0) |
| goto err; |
| |
| vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb); |
| |
| i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1; |
| for (; i < vps->vps_max_sub_layers; i++) { |
| vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1; |
| vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb); |
| vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1; |
| |
| if (vps->vps_max_dec_pic_buffering[i] > HEVC_MAX_DPB_SIZE || !vps->vps_max_dec_pic_buffering[i]) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n", |
| vps->vps_max_dec_pic_buffering[i] - 1); |
| goto err; |
| } |
| if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "vps_max_num_reorder_pics out of range: %d\n", |
| vps->vps_num_reorder_pics[i]); |
| goto err; |
| } |
| } |
| |
| vps->vps_max_layer_id = get_bits(gb, 6); |
| vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1; |
| if (vps->vps_num_layer_sets < 1 || vps->vps_num_layer_sets > 1024 || |
| (vps->vps_num_layer_sets - 1LL) * (vps->vps_max_layer_id + 1LL) > get_bits_left(gb)) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "too many layer_id_included_flags\n"); |
| goto err; |
| } |
| |
| for (i = 1; i < vps->vps_num_layer_sets; i++) |
| for (j = 0; j <= vps->vps_max_layer_id; j++) |
| skip_bits(gb, 1); // layer_id_included_flag[i][j] |
| |
| vps->vps_timing_info_present_flag = get_bits1(gb); |
| if (vps->vps_timing_info_present_flag) { |
| vps->vps_num_units_in_tick = get_bits_long(gb, 32); |
| vps->vps_time_scale = get_bits_long(gb, 32); |
| vps->vps_poc_proportional_to_timing_flag = get_bits1(gb); |
| if (vps->vps_poc_proportional_to_timing_flag) |
| vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1; |
| vps->vps_num_hrd_parameters = get_ue_golomb_long(gb); |
| if (vps->vps_num_hrd_parameters > (u32)vps->vps_num_layer_sets) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "vps_num_hrd_parameters %d is invalid\n", vps->vps_num_hrd_parameters); |
| goto err; |
| } |
| for (i = 0; i < vps->vps_num_hrd_parameters; i++) { |
| int common_inf_present = 1; |
| |
| get_ue_golomb_long(gb); // hrd_layer_set_idx |
| if (i) |
| common_inf_present = get_bits1(gb); |
| decode_hrd(gb, common_inf_present, vps->vps_max_sub_layers); |
| } |
| } |
| get_bits1(gb); /* vps_extension_flag */ |
| |
| if (get_bits_left(gb) < 0) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Overread VPS by %d bits\n", -get_bits_left(gb)); |
| goto err; |
| } |
| |
| return 0; |
| err: |
| return -1; |
| } |
| |
| static int map_pixel_format(struct h265_SPS_t *sps) |
| { |
| /*const AVPixFmtDescriptor *desc;*/ |
| switch (sps->bit_depth) { |
| case 8: |
| if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY8; |
| if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P; |
| if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P; |
| if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P; |
| break; |
| case 9: |
| if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY9; |
| if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P9; |
| if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P9; |
| if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P9; |
| break; |
| case 10: |
| if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY10; |
| if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P10; |
| if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P10; |
| if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P10; |
| break; |
| case 12: |
| if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY12; |
| if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P12; |
| if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P12; |
| if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P12; |
| break; |
| default: |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "The following bit-depths are currently specified: 8, 9, 10 and 12 bits, " |
| "chroma_format_idc is %d, depth is %d\n", |
| sps->chroma_format_idc, sps->bit_depth); |
| return -1; |
| } |
| |
| /*desc = av_pix_fmt_desc_get(sps->pix_fmt); |
| if (!desc) |
| return AVERROR(EINVAL); |
| |
| sps->hshift[0] = sps->vshift[0] = 0; |
| sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w; |
| sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;*/ |
| |
| sps->pixel_shift = sps->bit_depth > 8; |
| |
| return 0; |
| } |
| |
| static void set_default_scaling_list_data(struct ScalingList *sl) |
| { |
| int matrixId; |
| |
| for (matrixId = 0; matrixId < 6; matrixId++) { |
| // 4x4 default is 16 |
| memset(sl->sl[0][matrixId], 16, 16); |
| sl->sl_dc[0][matrixId] = 16; // default for 16x16 |
| sl->sl_dc[1][matrixId] = 16; // default for 32x32 |
| } |
| memcpy(sl->sl[1][0], default_scaling_list_intra, 64); |
| memcpy(sl->sl[1][1], default_scaling_list_intra, 64); |
| memcpy(sl->sl[1][2], default_scaling_list_intra, 64); |
| memcpy(sl->sl[1][3], default_scaling_list_inter, 64); |
| memcpy(sl->sl[1][4], default_scaling_list_inter, 64); |
| memcpy(sl->sl[1][5], default_scaling_list_inter, 64); |
| memcpy(sl->sl[2][0], default_scaling_list_intra, 64); |
| memcpy(sl->sl[2][1], default_scaling_list_intra, 64); |
| memcpy(sl->sl[2][2], default_scaling_list_intra, 64); |
| memcpy(sl->sl[2][3], default_scaling_list_inter, 64); |
| memcpy(sl->sl[2][4], default_scaling_list_inter, 64); |
| memcpy(sl->sl[2][5], default_scaling_list_inter, 64); |
| memcpy(sl->sl[3][0], default_scaling_list_intra, 64); |
| memcpy(sl->sl[3][1], default_scaling_list_intra, 64); |
| memcpy(sl->sl[3][2], default_scaling_list_intra, 64); |
| memcpy(sl->sl[3][3], default_scaling_list_inter, 64); |
| memcpy(sl->sl[3][4], default_scaling_list_inter, 64); |
| memcpy(sl->sl[3][5], default_scaling_list_inter, 64); |
| } |
| |
| static int scaling_list_data(struct get_bits_context *gb, |
| struct ScalingList *sl, struct h265_SPS_t *sps) |
| { |
| u8 scaling_list_pred_mode_flag; |
| int scaling_list_dc_coef[2][6]; |
| int size_id, matrix_id, pos; |
| int i; |
| |
| for (size_id = 0; size_id < 4; size_id++) |
| for (matrix_id = 0; matrix_id < 6; matrix_id += ((size_id == 3) ? 3 : 1)) { |
| scaling_list_pred_mode_flag = get_bits1(gb); |
| if (!scaling_list_pred_mode_flag) { |
| u32 delta = get_ue_golomb_long(gb); |
| /* Only need to handle non-zero delta. Zero means default, |
| * which should already be in the arrays. */ |
| if (delta) { |
| // Copy from previous array. |
| delta *= (size_id == 3) ? 3 : 1; |
| if (matrix_id < delta) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Invalid delta in scaling list data: %d.\n", delta); |
| return -1; |
| } |
| |
| memcpy(sl->sl[size_id][matrix_id], |
| sl->sl[size_id][matrix_id - delta], |
| size_id > 0 ? 64 : 16); |
| if (size_id > 1) |
| sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta]; |
| } |
| } else { |
| int next_coef, coef_num; |
| int scaling_list_delta_coef; |
| |
| next_coef = 8; |
| coef_num = FFMIN(64, 1 << (4 + (size_id << 1))); |
| if (size_id > 1) { |
| scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8; |
| next_coef = scaling_list_dc_coef[size_id - 2][matrix_id]; |
| sl->sl_dc[size_id - 2][matrix_id] = next_coef; |
| } |
| for (i = 0; i < coef_num; i++) { |
| if (size_id == 0) |
| pos = 4 * ff_hevc_diag_scan4x4_y[i] + |
| ff_hevc_diag_scan4x4_x[i]; |
| else |
| pos = 8 * ff_hevc_diag_scan8x8_y[i] + |
| ff_hevc_diag_scan8x8_x[i]; |
| |
| scaling_list_delta_coef = get_se_golomb(gb); |
| next_coef = (next_coef + 256U + scaling_list_delta_coef) % 256; |
| sl->sl[size_id][matrix_id][pos] = next_coef; |
| } |
| } |
| } |
| |
| if (sps->chroma_format_idc == 3) { |
| for (i = 0; i < 64; i++) { |
| sl->sl[3][1][i] = sl->sl[2][1][i]; |
| sl->sl[3][2][i] = sl->sl[2][2][i]; |
| sl->sl[3][4][i] = sl->sl[2][4][i]; |
| sl->sl[3][5][i] = sl->sl[2][5][i]; |
| } |
| sl->sl_dc[1][1] = sl->sl_dc[0][1]; |
| sl->sl_dc[1][2] = sl->sl_dc[0][2]; |
| sl->sl_dc[1][4] = sl->sl_dc[0][4]; |
| sl->sl_dc[1][5] = sl->sl_dc[0][5]; |
| } |
| |
| return 0; |
| } |
| |
| int ff_hevc_decode_short_term_rps(struct get_bits_context *gb, |
| struct ShortTermRPS *rps, const struct h265_SPS_t *sps, int is_slice_header) |
| { |
| u8 rps_predict = 0; |
| int delta_poc; |
| int k0 = 0; |
| int k1 = 0; |
| int k = 0; |
| int i; |
| |
| if (rps != sps->st_rps && sps->nb_st_rps) |
| rps_predict = get_bits1(gb); |
| |
| if (rps_predict) { |
| const struct ShortTermRPS *rps_ridx; |
| int delta_rps; |
| u32 abs_delta_rps; |
| u8 use_delta_flag = 0; |
| u8 delta_rps_sign; |
| |
| if (is_slice_header) { |
| u32 delta_idx = get_ue_golomb_long(gb) + 1; |
| if (delta_idx > sps->nb_st_rps) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Invalid value of delta_idx in slice header RPS: %d > %d.\n", |
| delta_idx, sps->nb_st_rps); |
| return -1; |
| } |
| rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx]; |
| rps->rps_idx_num_delta_pocs = rps_ridx->num_delta_pocs; |
| } else |
| rps_ridx = &sps->st_rps[rps - sps->st_rps - 1]; |
| |
| delta_rps_sign = get_bits1(gb); |
| abs_delta_rps = get_ue_golomb_long(gb) + 1; |
| if (abs_delta_rps < 1 || abs_delta_rps > 32768) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Invalid value of abs_delta_rps: %d\n", |
| abs_delta_rps); |
| return -1; |
| } |
| delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps; |
| for (i = 0; i <= rps_ridx->num_delta_pocs; i++) { |
| int used = rps->used[k] = get_bits1(gb); |
| |
| if (!used) |
| use_delta_flag = get_bits1(gb); |
| |
| if (used || use_delta_flag) { |
| if (i < rps_ridx->num_delta_pocs) |
| delta_poc = delta_rps + rps_ridx->delta_poc[i]; |
| else |
| delta_poc = delta_rps; |
| rps->delta_poc[k] = delta_poc; |
| if (delta_poc < 0) |
| k0++; |
| else |
| k1++; |
| k++; |
| } |
| } |
| |
| if (k >= ARRAY_SIZE(rps->used)) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Invalid num_delta_pocs: %d\n", k); |
| return -1; |
| } |
| |
| rps->num_delta_pocs = k; |
| rps->num_negative_pics = k0; |
| // sort in increasing order (smallest first) |
| if (rps->num_delta_pocs != 0) { |
| int used, tmp; |
| for (i = 1; i < rps->num_delta_pocs; i++) { |
| delta_poc = rps->delta_poc[i]; |
| used = rps->used[i]; |
| for (k = i - 1; k >= 0; k--) { |
| tmp = rps->delta_poc[k]; |
| if (delta_poc < tmp) { |
| rps->delta_poc[k + 1] = tmp; |
| rps->used[k + 1] = rps->used[k]; |
| rps->delta_poc[k] = delta_poc; |
| rps->used[k] = used; |
| } |
| } |
| } |
| } |
| if ((rps->num_negative_pics >> 1) != 0) { |
| int used; |
| k = rps->num_negative_pics - 1; |
| // flip the negative values to largest first |
| for (i = 0; i < rps->num_negative_pics >> 1; i++) { |
| delta_poc = rps->delta_poc[i]; |
| used = rps->used[i]; |
| rps->delta_poc[i] = rps->delta_poc[k]; |
| rps->used[i] = rps->used[k]; |
| rps->delta_poc[k] = delta_poc; |
| rps->used[k] = used; |
| k--; |
| } |
| } |
| } else { |
| u32 prev, nb_positive_pics; |
| rps->num_negative_pics = get_ue_golomb_long(gb); |
| nb_positive_pics = get_ue_golomb_long(gb); |
| |
| if (rps->num_negative_pics >= HEVC_MAX_REFS || |
| nb_positive_pics >= HEVC_MAX_REFS) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Too many refs in a short term RPS.\n"); |
| return -1; |
| } |
| |
| rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics; |
| if (rps->num_delta_pocs) { |
| prev = 0; |
| for (i = 0; i < rps->num_negative_pics; i++) { |
| delta_poc = get_ue_golomb_long(gb) + 1; |
| if (delta_poc < 1 || delta_poc > 32768) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Invalid value of delta_poc: %d\n", |
| delta_poc); |
| return -1; |
| } |
| prev -= delta_poc; |
| rps->delta_poc[i] = prev; |
| rps->used[i] = get_bits1(gb); |
| } |
| prev = 0; |
| for (i = 0; i < nb_positive_pics; i++) { |
| delta_poc = get_ue_golomb_long(gb) + 1; |
| if (delta_poc < 1 || delta_poc > 32768) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Invalid value of delta_poc: %d\n", |
| delta_poc); |
| return -1; |
| } |
| prev += delta_poc; |
| rps->delta_poc[rps->num_negative_pics + i] = prev; |
| rps->used[rps->num_negative_pics + i] = get_bits1(gb); |
| } |
| } |
| } |
| return 0; |
| } |
| |
| static void decode_vui(struct get_bits_context *gb, struct h265_SPS_t *sps) |
| { |
| struct VUI backup_vui, *vui = &sps->vui; |
| struct get_bits_context backup; |
| int sar_present, alt = 0; |
| |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "Decoding VUI\n"); |
| |
| sar_present = get_bits1(gb); |
| if (sar_present) { |
| u8 sar_idx = get_bits(gb, 8); |
| if (sar_idx < ARRAY_SIZE(vui_sar)) |
| vui->sar = vui_sar[sar_idx]; |
| else if (sar_idx == 255) { |
| vui->sar.num = get_bits(gb, 16); |
| vui->sar.den = get_bits(gb, 16); |
| } else |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, |
| "Unknown SAR index: %u.\n", sar_idx); |
| } |
| |
| vui->overscan_info_present_flag = get_bits1(gb); |
| if (vui->overscan_info_present_flag) |
| vui->overscan_appropriate_flag = get_bits1(gb); |
| |
| vui->video_signal_type_present_flag = get_bits1(gb); |
| if (vui->video_signal_type_present_flag) { |
| vui->video_format = get_bits(gb, 3); |
| vui->video_full_range_flag = get_bits1(gb); |
| vui->colour_description_present_flag = get_bits1(gb); |
| if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P) |
| sps->pix_fmt = AV_PIX_FMT_YUVJ420P; |
| if (vui->colour_description_present_flag) { |
| vui->colour_primaries = get_bits(gb, 8); |
| vui->transfer_characteristic = get_bits(gb, 8); |
| vui->matrix_coeffs = get_bits(gb, 8); |
| |
| // Set invalid values to "unspecified" |
| if (!av_color_primaries_name(vui->colour_primaries)) |
| vui->colour_primaries = AVCOL_PRI_UNSPECIFIED; |
| if (!av_color_transfer_name(vui->transfer_characteristic)) |
| vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED; |
| if (!av_color_space_name(vui->matrix_coeffs)) |
| vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED; |
| if (vui->matrix_coeffs == AVCOL_SPC_RGB) { |
| switch (sps->pix_fmt) { |
| case AV_PIX_FMT_YUV444P: |
| sps->pix_fmt = AV_PIX_FMT_GBRP; |
| break; |
| case AV_PIX_FMT_YUV444P10: |
| sps->pix_fmt = AV_PIX_FMT_GBRP10; |
| break; |
| case AV_PIX_FMT_YUV444P12: |
| sps->pix_fmt = AV_PIX_FMT_GBRP12; |
| break; |
| } |
| } |
| } |
| } |
| |
| vui->chroma_loc_info_present_flag = get_bits1(gb); |
| if (vui->chroma_loc_info_present_flag) { |
| vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb); |
| vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb); |
| } |
| |
| vui->neutra_chroma_indication_flag = get_bits1(gb); |
| vui->field_seq_flag = get_bits1(gb); |
| vui->frame_field_info_present_flag = get_bits1(gb); |
| |
| // Backup context in case an alternate header is detected |
| memcpy(&backup, gb, sizeof(backup)); |
| memcpy(&backup_vui, vui, sizeof(backup_vui)); |
| if (get_bits_left(gb) >= 68 && show_bits_long(gb, 21) == 0x100000) { |
| vui->default_display_window_flag = 0; |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "Invalid default display window\n"); |
| } else |
| vui->default_display_window_flag = get_bits1(gb); |
| |
| if (vui->default_display_window_flag) { |
| int vert_mult = hevc_sub_height_c[sps->chroma_format_idc]; |
| int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc]; |
| vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * horiz_mult; |
| vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * horiz_mult; |
| vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * vert_mult; |
| vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult; |
| } |
| |
| timing_info: |
| vui->vui_timing_info_present_flag = get_bits1(gb); |
| |
| if (vui->vui_timing_info_present_flag) { |
| if (get_bits_left(gb) < 66 && !alt) { |
| // The alternate syntax seem to have timing info located |
| // at where def_disp_win is normally located |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "Strange VUI timing information, retrying...\n"); |
| memcpy(vui, &backup_vui, sizeof(backup_vui)); |
| memcpy(gb, &backup, sizeof(backup)); |
| alt = 1; |
| goto timing_info; |
| } |
| vui->vui_num_units_in_tick = get_bits_long(gb, 32); |
| vui->vui_time_scale = get_bits_long(gb, 32); |
| if (alt) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "Retry got %u/%u fps\n", |
| vui->vui_time_scale, vui->vui_num_units_in_tick); |
| } |
| vui->vui_poc_proportional_to_timing_flag = get_bits1(gb); |
| if (vui->vui_poc_proportional_to_timing_flag) |
| vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb); |
| vui->vui_hrd_parameters_present_flag = get_bits1(gb); |
| if (vui->vui_hrd_parameters_present_flag) |
| decode_hrd(gb, 1, sps->max_sub_layers); |
| } |
| |
| vui->bitstream_restriction_flag = get_bits1(gb); |
| if (vui->bitstream_restriction_flag) { |
| if (get_bits_left(gb) < 8 && !alt) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "Strange VUI bitstream restriction information, retrying" |
| " from timing information...\n"); |
| memcpy(vui, &backup_vui, sizeof(backup_vui)); |
| memcpy(gb, &backup, sizeof(backup)); |
| alt = 1; |
| goto timing_info; |
| } |
| vui->tiles_fixed_structure_flag = get_bits1(gb); |
| vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb); |
| vui->restricted_ref_pic_lists_flag = get_bits1(gb); |
| vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb); |
| vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb); |
| vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb); |
| vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb); |
| vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb); |
| } |
| |
| if (get_bits_left(gb) < 1 && !alt) { |
| // XXX: Alternate syntax when sps_range_extension_flag != 0? |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "Overread in VUI, retrying from timing information...\n"); |
| memcpy(vui, &backup_vui, sizeof(backup_vui)); |
| memcpy(gb, &backup, sizeof(backup)); |
| alt = 1; |
| goto timing_info; |
| } |
| } |
| |
| int ff_hevc_parse_sps(struct get_bits_context *gb, struct h265_SPS_t *sps) |
| { |
| int i, ret = 0; |
| int log2_diff_max_min_transform_block_size; |
| int bit_depth_chroma, start, vui_present, sublayer_ordering_info; |
| struct HEVCWindow *ow; |
| |
| sps->vps_id = get_bits(gb, 4); |
| if (sps->vps_id >= HEVC_MAX_VPS_COUNT) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "VPS id out of range: %d\n", sps->vps_id); |
| return -1; |
| } |
| |
| sps->max_sub_layers = get_bits(gb, 3) + 1; |
| if (sps->max_sub_layers > HEVC_MAX_SUB_LAYERS) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "sps_max_sub_layers out of range: %d\n", |
| sps->max_sub_layers); |
| return -1; |
| } |
| |
| sps->temporal_id_nesting_flag = get_bits(gb, 1); |
| |
| if ((ret = parse_ptl(gb, &sps->ptl, sps->max_sub_layers)) < 0) |
| return ret; |
| |
| sps->sps_id = get_ue_golomb_long(gb); |
| if (sps->sps_id >= HEVC_MAX_SPS_COUNT) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "SPS id out of range: %d\n", sps->sps_id); |
| return -1; |
| } |
| |
| sps->chroma_format_idc = get_ue_golomb_long(gb); |
| if (sps->chroma_format_idc > 3U) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "chroma_format_idc %d is invalid\n", sps->chroma_format_idc); |
| return -1; |
| } |
| |
| if (sps->chroma_format_idc == 3) |
| sps->separate_colour_plane_flag = get_bits1(gb); |
| |
| if (sps->separate_colour_plane_flag) |
| sps->chroma_format_idc = 0; |
| |
| sps->width = get_ue_golomb_long(gb); |
| sps->height = get_ue_golomb_long(gb); |
| if (sps->width > 8192 || sps->height > 8192) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "width or height oversize.\n"); |
| return -1; |
| } |
| |
| if (get_bits1(gb)) { // pic_conformance_flag |
| int vert_mult = hevc_sub_height_c[sps->chroma_format_idc]; |
| int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc]; |
| sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * horiz_mult; |
| sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * horiz_mult; |
| sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * vert_mult; |
| sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult; |
| sps->output_window = sps->pic_conf_win; |
| } |
| |
| sps->bit_depth = get_ue_golomb_long(gb) + 8; |
| bit_depth_chroma = get_ue_golomb_long(gb) + 8; |
| if (sps->chroma_format_idc && bit_depth_chroma != sps->bit_depth) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Luma bit depth (%d) is different from chroma bit depth (%d), this is unsupported.\n", |
| sps->bit_depth, bit_depth_chroma); |
| return -1; |
| } |
| sps->bit_depth_chroma = bit_depth_chroma; |
| |
| ret = map_pixel_format(sps); |
| if (ret < 0) |
| return ret; |
| |
| sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4; |
| if (sps->log2_max_poc_lsb > 16) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n", |
| sps->log2_max_poc_lsb - 4); |
| return -1; |
| } |
| |
| sublayer_ordering_info = get_bits1(gb); |
| start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1; |
| for (i = start; i < sps->max_sub_layers; i++) { |
| sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1; |
| sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb); |
| sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1; |
| if (sps->temporal_layer[i].max_dec_pic_buffering > (u32)HEVC_MAX_DPB_SIZE) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n", |
| sps->temporal_layer[i].max_dec_pic_buffering - 1U); |
| return -1; |
| } |
| if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "sps_max_num_reorder_pics out of range: %d\n", |
| sps->temporal_layer[i].num_reorder_pics); |
| if (sps->temporal_layer[i].num_reorder_pics > HEVC_MAX_DPB_SIZE - 1) { |
| return -1; |
| } |
| sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1; |
| } |
| } |
| |
| if (!sublayer_ordering_info) { |
| for (i = 0; i < start; i++) { |
| sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering; |
| sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics; |
| sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase; |
| } |
| } |
| |
| sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3; |
| sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb); |
| sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2; |
| log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb); |
| sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size + sps->log2_min_tb_size; |
| |
| if (sps->log2_min_cb_size < 3 || sps->log2_min_cb_size > 30) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Invalid value %d for log2_min_cb_size", sps->log2_min_cb_size); |
| return -1; |
| } |
| |
| if (sps->log2_diff_max_min_coding_block_size > 30) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Invalid value %d for log2_diff_max_min_coding_block_size", sps->log2_diff_max_min_coding_block_size); |
| return -1; |
| } |
| |
| if (sps->log2_min_tb_size >= sps->log2_min_cb_size || sps->log2_min_tb_size < 2) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Invalid value for log2_min_tb_size"); |
| return -1; |
| } |
| |
| if (log2_diff_max_min_transform_block_size < 0 || log2_diff_max_min_transform_block_size > 30) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Invalid value %d for log2_diff_max_min_transform_block_size", log2_diff_max_min_transform_block_size); |
| return -1; |
| } |
| |
| sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb); |
| sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb); |
| |
| sps->scaling_list_enable_flag = get_bits1(gb); |
| if (sps->scaling_list_enable_flag) { |
| set_default_scaling_list_data(&sps->scaling_list); |
| |
| if (get_bits1(gb)) { |
| ret = scaling_list_data(gb, &sps->scaling_list, sps); |
| if (ret < 0) |
| return ret; |
| } |
| } |
| |
| sps->amp_enabled_flag = get_bits1(gb); |
| sps->sao_enabled = get_bits1(gb); |
| |
| sps->pcm_enabled_flag = get_bits1(gb); |
| if (sps->pcm_enabled_flag) { |
| sps->pcm.bit_depth = get_bits(gb, 4) + 1; |
| sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1; |
| sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3; |
| sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size + |
| get_ue_golomb_long(gb); |
| if (FFMAX(sps->pcm.bit_depth, sps->pcm.bit_depth_chroma) > sps->bit_depth) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "PCM bit depth (%d, %d) is greater than normal bit depth (%d)\n", |
| sps->pcm.bit_depth, sps->pcm.bit_depth_chroma, sps->bit_depth); |
| return -1; |
| } |
| |
| sps->pcm.loop_filter_disable_flag = get_bits1(gb); |
| } |
| |
| sps->nb_st_rps = get_ue_golomb_long(gb); |
| if (sps->nb_st_rps > HEVC_MAX_SHORT_TERM_REF_PIC_SETS) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Too many short term RPS: %d.\n", sps->nb_st_rps); |
| return -1; |
| } |
| for (i = 0; i < sps->nb_st_rps; i++) { |
| if ((ret = ff_hevc_decode_short_term_rps(gb, &sps->st_rps[i], sps, 0)) < 0) |
| return ret; |
| } |
| |
| sps->long_term_ref_pics_present_flag = get_bits1(gb); |
| if (sps->long_term_ref_pics_present_flag) { |
| sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb); |
| if (sps->num_long_term_ref_pics_sps > HEVC_MAX_LONG_TERM_REF_PICS) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Too many long term ref pics: %d.\n", |
| sps->num_long_term_ref_pics_sps); |
| return -1; |
| } |
| for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) { |
| sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb); |
| sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb); |
| } |
| } |
| |
| sps->sps_temporal_mvp_enabled_flag = get_bits1(gb); |
| sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb); |
| sps->vui.sar = (struct AVRational){0, 1}; |
| vui_present = get_bits1(gb); |
| if (vui_present) |
| decode_vui(gb, sps); |
| |
| if (get_bits1(gb)) { // sps_extension_flag |
| sps->sps_range_extension_flag = get_bits1(gb); |
| skip_bits(gb, 7); //sps_extension_7bits = get_bits(gb, 7); |
| if (sps->sps_range_extension_flag) { |
| sps->transform_skip_rotation_enabled_flag = get_bits1(gb); |
| sps->transform_skip_context_enabled_flag = get_bits1(gb); |
| sps->implicit_rdpcm_enabled_flag = get_bits1(gb); |
| sps->explicit_rdpcm_enabled_flag = get_bits1(gb); |
| sps->extended_precision_processing_flag = get_bits1(gb); |
| if (sps->extended_precision_processing_flag) |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "extended_precision_processing_flag not yet implemented\n"); |
| |
| sps->intra_smoothing_disabled_flag = get_bits1(gb); |
| sps->high_precision_offsets_enabled_flag = get_bits1(gb); |
| if (sps->high_precision_offsets_enabled_flag) |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "high_precision_offsets_enabled_flag not yet implemented\n"); |
| |
| sps->persistent_rice_adaptation_enabled_flag = get_bits1(gb); |
| sps->cabac_bypass_alignment_enabled_flag = get_bits1(gb); |
| if (sps->cabac_bypass_alignment_enabled_flag) |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "cabac_bypass_alignment_enabled_flag not yet implemented\n"); |
| } |
| } |
| |
| ow = &sps->output_window; |
| if (ow->left_offset >= INT_MAX - ow->right_offset || |
| ow->top_offset >= INT_MAX - ow->bottom_offset || |
| ow->left_offset + ow->right_offset >= sps->width || |
| ow->top_offset + ow->bottom_offset >= sps->height) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Invalid cropping offsets: %u/%u/%u/%u\n", |
| ow->left_offset, ow->right_offset, ow->top_offset, ow->bottom_offset); |
| return -1; |
| } |
| |
| // Inferred parameters |
| sps->log2_ctb_size = sps->log2_min_cb_size + |
| sps->log2_diff_max_min_coding_block_size; |
| sps->log2_min_pu_size = sps->log2_min_cb_size - 1; |
| |
| if (sps->log2_ctb_size > HEVC_MAX_LOG2_CTB_SIZE) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size); |
| return -1; |
| } |
| if (sps->log2_ctb_size < 4) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "log2_ctb_size %d differs from the bounds of any known profile\n", sps->log2_ctb_size); |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "log2_ctb_size %d", sps->log2_ctb_size); |
| return -1; |
| } |
| |
| sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size; |
| sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size; |
| sps->ctb_size = sps->ctb_width * sps->ctb_height; |
| |
| sps->min_cb_width = sps->width >> sps->log2_min_cb_size; |
| sps->min_cb_height = sps->height >> sps->log2_min_cb_size; |
| sps->min_tb_width = sps->width >> sps->log2_min_tb_size; |
| sps->min_tb_height = sps->height >> sps->log2_min_tb_size; |
| sps->min_pu_width = sps->width >> sps->log2_min_pu_size; |
| sps->min_pu_height = sps->height >> sps->log2_min_pu_size; |
| sps->tb_mask = (1 << (sps->log2_ctb_size - sps->log2_min_tb_size)) - 1; |
| sps->qp_bd_offset = 6 * (sps->bit_depth - 8); |
| |
| if (av_mod_uintp2(sps->width, sps->log2_min_cb_size) || |
| av_mod_uintp2(sps->height, sps->log2_min_cb_size)) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Invalid coded frame dimensions.\n"); |
| return -1; |
| } |
| |
| if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n", |
| sps->max_transform_hierarchy_depth_inter); |
| return -1; |
| } |
| if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n", |
| sps->max_transform_hierarchy_depth_intra); |
| return -1; |
| } |
| if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "max transform block size out of range: %d\n", |
| sps->log2_max_trafo_size); |
| return -1; |
| } |
| |
| if (get_bits_left(gb) < 0) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Overread SPS by %d bits\n", -get_bits_left(gb)); |
| return -1; |
| } |
| |
| v4l_dbg(0, V4L_DEBUG_CODEC_PARSER, "Parsed SPS: id %d; ref: %d, coded wxh: %dx%d, cropped wxh: %dx%d; pix_fmt: %d.\n", |
| sps->sps_id, sps->temporal_layer[0].num_reorder_pics, sps->width, sps->height, |
| sps->width - (sps->output_window.left_offset + sps->output_window.right_offset), |
| sps->height - (sps->output_window.top_offset + sps->output_window.bottom_offset), |
| sps->pix_fmt); |
| |
| return 0; |
| } |
| |
| const char *hevc_nal_type_name[64] = { |
| "TRAIL_N", // HEVC_NAL_TRAIL_N |
| "TRAIL_R", // HEVC_NAL_TRAIL_R |
| "TSA_N", // HEVC_NAL_TSA_N |
| "TSA_R", // HEVC_NAL_TSA_R |
| "STSA_N", // HEVC_NAL_STSA_N |
| "STSA_R", // HEVC_NAL_STSA_R |
| "RADL_N", // HEVC_NAL_RADL_N |
| "RADL_R", // HEVC_NAL_RADL_R |
| "RASL_N", // HEVC_NAL_RASL_N |
| "RASL_R", // HEVC_NAL_RASL_R |
| "RSV_VCL_N10", // HEVC_NAL_VCL_N10 |
| "RSV_VCL_R11", // HEVC_NAL_VCL_R11 |
| "RSV_VCL_N12", // HEVC_NAL_VCL_N12 |
| "RSV_VLC_R13", // HEVC_NAL_VCL_R13 |
| "RSV_VCL_N14", // HEVC_NAL_VCL_N14 |
| "RSV_VCL_R15", // HEVC_NAL_VCL_R15 |
| "BLA_W_LP", // HEVC_NAL_BLA_W_LP |
| "BLA_W_RADL", // HEVC_NAL_BLA_W_RADL |
| "BLA_N_LP", // HEVC_NAL_BLA_N_LP |
| "IDR_W_RADL", // HEVC_NAL_IDR_W_RADL |
| "IDR_N_LP", // HEVC_NAL_IDR_N_LP |
| "CRA_NUT", // HEVC_NAL_CRA_NUT |
| "IRAP_IRAP_VCL22", // HEVC_NAL_IRAP_VCL22 |
| "IRAP_IRAP_VCL23", // HEVC_NAL_IRAP_VCL23 |
| "RSV_VCL24", // HEVC_NAL_RSV_VCL24 |
| "RSV_VCL25", // HEVC_NAL_RSV_VCL25 |
| "RSV_VCL26", // HEVC_NAL_RSV_VCL26 |
| "RSV_VCL27", // HEVC_NAL_RSV_VCL27 |
| "RSV_VCL28", // HEVC_NAL_RSV_VCL28 |
| "RSV_VCL29", // HEVC_NAL_RSV_VCL29 |
| "RSV_VCL30", // HEVC_NAL_RSV_VCL30 |
| "RSV_VCL31", // HEVC_NAL_RSV_VCL31 |
| "VPS", // HEVC_NAL_VPS |
| "SPS", // HEVC_NAL_SPS |
| "PPS", // HEVC_NAL_PPS |
| "AUD", // HEVC_NAL_AUD |
| "EOS_NUT", // HEVC_NAL_EOS_NUT |
| "EOB_NUT", // HEVC_NAL_EOB_NUT |
| "FD_NUT", // HEVC_NAL_FD_NUT |
| "SEI_PREFIX", // HEVC_NAL_SEI_PREFIX |
| "SEI_SUFFIX", // HEVC_NAL_SEI_SUFFIX |
| "RSV_NVCL41", // HEVC_NAL_RSV_NVCL41 |
| "RSV_NVCL42", // HEVC_NAL_RSV_NVCL42 |
| "RSV_NVCL43", // HEVC_NAL_RSV_NVCL43 |
| "RSV_NVCL44", // HEVC_NAL_RSV_NVCL44 |
| "RSV_NVCL45", // HEVC_NAL_RSV_NVCL45 |
| "RSV_NVCL46", // HEVC_NAL_RSV_NVCL46 |
| "RSV_NVCL47", // HEVC_NAL_RSV_NVCL47 |
| "UNSPEC48", // HEVC_NAL_UNSPEC48 |
| "UNSPEC49", // HEVC_NAL_UNSPEC49 |
| "UNSPEC50", // HEVC_NAL_UNSPEC50 |
| "UNSPEC51", // HEVC_NAL_UNSPEC51 |
| "UNSPEC52", // HEVC_NAL_UNSPEC52 |
| "UNSPEC53", // HEVC_NAL_UNSPEC53 |
| "UNSPEC54", // HEVC_NAL_UNSPEC54 |
| "UNSPEC55", // HEVC_NAL_UNSPEC55 |
| "UNSPEC56", // HEVC_NAL_UNSPEC56 |
| "UNSPEC57", // HEVC_NAL_UNSPEC57 |
| "UNSPEC58", // HEVC_NAL_UNSPEC58 |
| "UNSPEC59", // HEVC_NAL_UNSPEC59 |
| "UNSPEC60", // HEVC_NAL_UNSPEC60 |
| "UNSPEC61", // HEVC_NAL_UNSPEC61 |
| "UNSPEC62", // HEVC_NAL_UNSPEC62 |
| "UNSPEC63", // HEVC_NAL_UNSPEC63 |
| }; |
| |
| static const char *hevc_nal_unit_name(int nal_type) |
| { |
| return hevc_nal_type_name[nal_type]; |
| } |
| |
| /** |
| * Parse NAL units of found picture and decode some basic information. |
| * |
| * @param s parser context. |
| * @param avctx codec context. |
| * @param buf buffer with field/frame data. |
| * @param buf_size size of the buffer. |
| */ |
| static int decode_extradata_ps(u8 *data, int size, struct h265_param_sets *ps) |
| { |
| int ret = 0; |
| struct get_bits_context gb; |
| u32 src_len, rbsp_size = 0; |
| u8 *rbsp_buf = NULL; |
| int nalu_pos, nuh_layer_id, temporal_id; |
| u32 nal_type; |
| u8 *p = data; |
| u32 len = size; |
| |
| nalu_pos = find_start_code(p, len); |
| if (nalu_pos < 0) |
| return -1; |
| |
| src_len = calc_nal_len(p + nalu_pos, size - nalu_pos); |
| rbsp_buf = nal_unit_extract_rbsp(p + nalu_pos, src_len, &rbsp_size); |
| if (rbsp_buf == NULL) |
| return -ENOMEM; |
| |
| ret = init_get_bits8(&gb, rbsp_buf, rbsp_size); |
| if (ret < 0) |
| goto out; |
| |
| if (get_bits1(&gb) != 0) { |
| ret = -1; |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "invalid data, return!\n"); |
| goto out; |
| } |
| |
| nal_type = get_bits(&gb, 6); |
| nuh_layer_id = get_bits(&gb, 6); |
| temporal_id = get_bits(&gb, 3) - 1; |
| if (temporal_id < 0) { |
| ret = -1; |
| goto out; |
| } |
| |
| /*pr_info("nal_unit_type: %d(%s), nuh_layer_id: %d, temporal_id: %d\n", |
| nal_type, hevc_nal_unit_name(nal_type), |
| nuh_layer_id, temporal_id);*/ |
| |
| switch (nal_type) { |
| case HEVC_NAL_VPS: |
| ret = ff_hevc_parse_vps(&gb, &ps->vps); |
| if (ret < 0) |
| goto out; |
| ps->vps_parsed = true; |
| break; |
| case HEVC_NAL_SPS: |
| ret = ff_hevc_parse_sps(&gb, &ps->sps); |
| if (ret < 0) |
| goto out; |
| ps->sps_parsed = true; |
| break; |
| /*case HEVC_NAL_PPS: |
| ret = ff_hevc_decode_nal_pps(&gb, NULL, ps); |
| if (ret < 0) |
| goto out; |
| ps->pps_parsed = true; |
| break;*/ |
| default: |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "Unsupport parser nal type (%s).\n", |
| hevc_nal_unit_name(nal_type)); |
| break; |
| } |
| |
| out: |
| vfree(rbsp_buf); |
| |
| return ret; |
| } |
| |
| int h265_decode_extradata_ps(u8 *buf, int size, struct h265_param_sets *ps) |
| { |
| int ret = 0, i = 0, j = 0; |
| u8 *p = buf; |
| int len = size; |
| |
| for (i = 4; i < size; i++) { |
| j = find_start_code(p, len); |
| if (j > 0) { |
| len = size - (p - buf); |
| ret = decode_extradata_ps(p, len, ps); |
| if (ret) { |
| v4l_dbg(0, V4L_DEBUG_CODEC_ERROR, "parse extra data failed. err: %d\n", ret); |
| return ret; |
| } |
| |
| if (ps->sps_parsed) |
| break; |
| |
| p += j; |
| } |
| p++; |
| } |
| |
| return ret; |
| } |
| |
