55 files changed, 11471 insertions, 2282 deletions
diff --git a/drivers/amvdec_ports/decoder/aml_hevc_parser.c b/drivers/amvdec_ports/decoder/aml_hevc_parser.c new file mode 100644 index 0000000..33d44f1 --- a/dev/null +++ b/drivers/amvdec_ports/decoder/aml_hevc_parser.c @@ -0,0 +1,1274 @@ +#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) + pr_info("Main profile bitstream\n"); + else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10) + pr_info("Main 10 profile bitstream\n"); + else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE) + pr_info("Main Still Picture profile bitstream\n"); + else if (ptl->profile_idc == FF_PROFILE_HEVC_REXT) + pr_info("Range Extension profile bitstream\n"); + else + pr_info("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))) { + pr_err("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) { + pr_err("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) { + pr_err("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) { + pr_err("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; + + pr_info("Decoding VPS\n"); + + vps_id = get_bits(gb, 4); + if (vps_id >= HEVC_MAX_VPS_COUNT) { + pr_err("VPS id out of range: %d\n", vps_id); + goto err; + } + + if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits + pr_err("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 + pr_err("vps_reserved_ffff_16bits is not 0xffff\n"); + goto err; + } + + if (vps->vps_max_sub_layers > HEVC_MAX_SUB_LAYERS) { + pr_err("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]) { + pr_err("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) { + pr_err("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)) { + pr_err("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) { + pr_err("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) { + pr_err("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: + pr_info("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) { + pr_err("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) { + pr_err("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) { + pr_err("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)) { + pr_err( "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) { + pr_err("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) { + pr_err("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) { + pr_err("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; + + pr_info("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 + pr_info("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; + pr_info("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 + pr_info("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) { + pr_info("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) { + pr_info("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? + pr_info("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) { + pr_err("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) { + pr_err("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) { + pr_err("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) { + pr_err("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) { + pr_err("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) { + pr_err("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) { + pr_err("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) { + pr_err("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) { + pr_info("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) { + pr_err("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) { + pr_err("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) { + pr_err("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) { + pr_err("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) { + pr_err("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) { + pr_err("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) { + pr_err("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) + pr_info("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) + pr_info("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) + pr_info("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) { + pr_err("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) { + pr_err("CTB size out of range: 2^%d\n", sps->log2_ctb_size); + return -1; + } + if (sps->log2_ctb_size < 4) { + pr_err("log2_ctb_size %d differs from the bounds of any known profile\n", sps->log2_ctb_size); + pr_err("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)) { + pr_err("Invalid coded frame dimensions.\n"); + return -1; + } + + if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) { + pr_err("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) { + pr_err("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)) { + pr_err("max transform block size out of range: %d\n", + sps->log2_max_trafo_size); + return -1; + } + + if (get_bits_left(gb) < 0) { + pr_err("Overread SPS by %d bits\n", -get_bits_left(gb)); + return -1; + } + + pr_info("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) { + pr_err("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) + 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: + pr_err("Unsupport parser nal type (%s).\n", + hevc_nal_unit_name(nal_type)); + break; + } + +out: + vfree(rbsp_buf); + + return 0; +} + +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) { + pr_err("parse extra data failed. err: %d\n", ret); + return ret; + } + p += j; + } + p++; + } + + return ret; +} + |