diff options
| author | Mark Thompson <sw@jkqxz.net> | 2017-05-14 16:32:00 +0100 |
|---|---|---|
| committer | Mark Thompson <sw@jkqxz.net> | 2017-08-12 22:17:20 +0100 |
| commit | 867381b8b51fa21fa2b8f071f508f3d39cc9c1f0 (patch) | |
| tree | dff2a731457d3eb95a908532e18b7d40ca1531fb /libavcodec | |
| parent | acf06f45441be24c5cbae0920579cd69427326a1 (diff) | |
lavc: Add coded bitstream read/write support for H.265
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/Makefile | 1 | ||||
| -rw-r--r-- | libavcodec/cbs.c | 3 | ||||
| -rw-r--r-- | libavcodec/cbs_h2645.c | 410 | ||||
| -rw-r--r-- | libavcodec/cbs_h265.h | 537 | ||||
| -rw-r--r-- | libavcodec/cbs_h265_syntax_template.c | 1502 | ||||
| -rw-r--r-- | libavcodec/cbs_internal.h | 1 |
6 files changed, 2451 insertions, 3 deletions
diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 30fc388f8c..9791fb342e 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -55,6 +55,7 @@ OBJS-$(CONFIG_BSWAPDSP) += bswapdsp.o OBJS-$(CONFIG_CABAC) += cabac.o OBJS-$(CONFIG_CBS) += cbs.o OBJS-$(CONFIG_CBS_H264) += cbs_h2645.o h2645_parse.o +OBJS-$(CONFIG_CBS_H265) += cbs_h2645.o h2645_parse.o OBJS-$(CONFIG_DCT) += dct.o dct32_fixed.o dct32_float.o OBJS-$(CONFIG_ERROR_RESILIENCE) += error_resilience.o OBJS-$(CONFIG_FAANDCT) += faandct.o diff --git a/libavcodec/cbs.c b/libavcodec/cbs.c index 9352b535b2..b5d5dfd2fd 100644 --- a/libavcodec/cbs.c +++ b/libavcodec/cbs.c @@ -31,6 +31,9 @@ static const CodedBitstreamType *cbs_type_table[] = { #if CONFIG_CBS_H264 &ff_cbs_type_h264, #endif +#if CONFIG_CBS_H265 + &ff_cbs_type_h265, +#endif }; int ff_cbs_init(CodedBitstreamContext *ctx, diff --git a/libavcodec/cbs_h2645.c b/libavcodec/cbs_h2645.c index 2350f039fa..23556f47f8 100644 --- a/libavcodec/cbs_h2645.c +++ b/libavcodec/cbs_h2645.c @@ -23,10 +23,12 @@ #include "cbs.h" #include "cbs_internal.h" #include "cbs_h264.h" +#include "cbs_h265.h" #include "golomb.h" #include "h264.h" #include "h264_sei.h" #include "h2645_parse.h" +#include "hevc.h" static int cbs_read_ue_golomb(CodedBitstreamContext *ctx, BitstreamContext *bc, @@ -237,6 +239,7 @@ static int cbs_write_se_golomb(CodedBitstreamContext *ctx, PutBitContext *pbc, #define FUNC_NAME(rw, codec, name) cbs_ ## codec ## _ ## rw ## _ ## name #define FUNC_H264(rw, name) FUNC_NAME(rw, h264, name) +#define FUNC_H265(rw, name) FUNC_NAME(rw, h265, name) #define READ @@ -299,6 +302,10 @@ static int cbs_h2645_read_more_rbsp_data(BitstreamContext *bc) #include "cbs_h264_syntax_template.c" #undef FUNC +#define FUNC(name) FUNC_H265(READWRITE, name) +#include "cbs_h265_syntax_template.c" +#undef FUNC + #undef READ #undef READWRITE #undef RWContext @@ -368,6 +375,10 @@ static int cbs_h2645_read_more_rbsp_data(BitstreamContext *bc) #include "cbs_h264_syntax_template.c" #undef FUNC +#define FUNC(name) FUNC_H265(READWRITE, name) +#include "cbs_h265_syntax_template.c" +#undef FUNC + #undef WRITE #undef READWRITE #undef RWContext @@ -428,6 +439,40 @@ static void cbs_h264_free_nal_unit(CodedBitstreamUnit *unit) av_freep(&unit->content); } +static void cbs_h265_free_nal_unit(CodedBitstreamUnit *unit) +{ + switch (unit->type) { + case HEVC_NAL_VPS: + av_freep(&((H265RawVPS*)unit->content)->extension_data.data); + break; + case HEVC_NAL_SPS: + av_freep(&((H265RawSPS*)unit->content)->extension_data.data); + break; + case HEVC_NAL_PPS: + av_freep(&((H265RawPPS*)unit->content)->extension_data.data); + break; + case HEVC_NAL_TRAIL_N: + case HEVC_NAL_TRAIL_R: + case HEVC_NAL_TSA_N: + case HEVC_NAL_TSA_R: + case HEVC_NAL_STSA_N: + case HEVC_NAL_STSA_R: + case HEVC_NAL_RADL_N: + case HEVC_NAL_RADL_R: + case HEVC_NAL_RASL_N: + case HEVC_NAL_RASL_R: + case HEVC_NAL_BLA_W_LP: + case HEVC_NAL_BLA_W_RADL: + case HEVC_NAL_BLA_N_LP: + case HEVC_NAL_IDR_W_RADL: + case HEVC_NAL_IDR_N_LP: + case HEVC_NAL_CRA_NUT: + av_freep(&((H265RawSlice*)unit->content)->data); + break; + } + av_freep(&unit->content); +} + static int cbs_h2645_fragment_add_nals(CodedBitstreamContext *ctx, CodedBitstreamFragment *frag, const H2645Packet *packet) @@ -542,6 +587,58 @@ static int cbs_h2645_split_fragment(CodedBitstreamContext *ctx, "header.\n", bytestream2_get_bytes_left(&gbc)); } + } else if (header && frag->data[0] && codec_id == AV_CODEC_ID_HEVC) { + // HVCC header. + size_t size, start, end; + int i, j, nb_arrays, nal_unit_type, nb_nals, version; + + priv->mp4 = 1; + + bytestream2_init(&gbc, frag->data, frag->data_size); + + if (bytestream2_get_bytes_left(&gbc) < 23) + return AVERROR_INVALIDDATA; + + version = bytestream2_get_byte(&gbc); + if (version != 1) { + av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid HVCC header: " + "first byte %u.", version); + return AVERROR_INVALIDDATA; + } + + bytestream2_skip(&gbc, 20); + priv->nal_length_size = (bytestream2_get_byte(&gbc) & 3) + 1; + + nb_arrays = bytestream2_get_byte(&gbc); + for (i = 0; i < nb_arrays; i++) { + nal_unit_type = bytestream2_get_byte(&gbc) & 0x3f; + nb_nals = bytestream2_get_be16(&gbc); + + start = bytestream2_tell(&gbc); + for (j = 0; j < nb_nals; j++) { + if (bytestream2_get_bytes_left(&gbc) < 2) + return AVERROR_INVALIDDATA; + size = bytestream2_get_be16(&gbc); + if (bytestream2_get_bytes_left(&gbc) < size) + return AVERROR_INVALIDDATA; + bytestream2_skip(&gbc, size); + } + end = bytestream2_tell(&gbc); + + err = ff_h2645_packet_split(&priv->read_packet, + frag->data + start, end - start, + ctx->log_ctx, 1, 2, AV_CODEC_ID_HEVC); + if (err < 0) { + av_log(ctx->log_ctx, AV_LOG_ERROR, "Failed to split " + "HVCC array %d (%d NAL units of type %d).\n", + i, nb_nals, nal_unit_type); + return err; + } + err = cbs_h2645_fragment_add_nals(ctx, frag, &priv->read_packet); + if (err < 0) + return err; + } + } else { // Annex B, or later MP4 with already-known parameters. @@ -582,6 +679,9 @@ static int cbs_h26 ## h26n ## _replace_ ## ps_var(CodedBitstreamContext *ctx, \ cbs_h2645_replace_ps(4, SPS, sps, seq_parameter_set_id) cbs_h2645_replace_ps(4, PPS, pps, pic_parameter_set_id) +cbs_h2645_replace_ps(5, VPS, vps, vps_video_parameter_set_id) +cbs_h2645_replace_ps(5, SPS, sps, sps_seq_parameter_set_id) +cbs_h2645_replace_ps(5, PPS, pps, pps_pic_parameter_set_id) static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx, CodedBitstreamUnit *unit) @@ -730,6 +830,150 @@ static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx, return 0; } +static int cbs_h265_read_nal_unit(CodedBitstreamContext *ctx, + CodedBitstreamUnit *unit) +{ + BitstreamContext bc; + int err; + + err = bitstream_init(&bc, unit->data, 8 * unit->data_size); + if (err < 0) + return err; + + switch (unit->type) { + case HEVC_NAL_VPS: + { + H265RawVPS *vps; + + vps = av_mallocz(sizeof(*vps)); + if (!vps) + return AVERROR(ENOMEM); + err = cbs_h265_read_vps(ctx, &bc, vps); + if (err >= 0) + err = cbs_h265_replace_vps(ctx, vps); + if (err < 0) { + av_free(vps); + return err; + } + + unit->content = vps; + } + break; + case HEVC_NAL_SPS: + { + H265RawSPS *sps; + + sps = av_mallocz(sizeof(*sps)); + if (!sps) + return AVERROR(ENOMEM); + err = cbs_h265_read_sps(ctx, &bc, sps); + if (err >= 0) + err = cbs_h265_replace_sps(ctx, sps); + if (err < 0) { + av_free(sps); + return err; + } + + unit->content = sps; + } + break; + + case HEVC_NAL_PPS: + { + H265RawPPS *pps; + + pps = av_mallocz(sizeof(*pps)); + if (!pps) + return AVERROR(ENOMEM); + err = cbs_h265_read_pps(ctx, &bc, pps); + if (err >= 0) + err = cbs_h265_replace_pps(ctx, pps); + if (err < 0) { + av_free(pps); + return err; + } + + unit->content = pps; + } + break; + + case HEVC_NAL_TRAIL_N: + case HEVC_NAL_TRAIL_R: + case HEVC_NAL_TSA_N: + case HEVC_NAL_TSA_R: + case HEVC_NAL_STSA_N: + case HEVC_NAL_STSA_R: + case HEVC_NAL_RADL_N: + case HEVC_NAL_RADL_R: + case HEVC_NAL_RASL_N: + case HEVC_NAL_RASL_R: + case HEVC_NAL_BLA_W_LP: + case HEVC_NAL_BLA_W_RADL: + case HEVC_NAL_BLA_N_LP: + case HEVC_NAL_IDR_W_RADL: + case HEVC_NAL_IDR_N_LP: + case HEVC_NAL_CRA_NUT: + { + H265RawSlice *slice; + int pos, len; + + slice = av_mallocz(sizeof(*slice)); + if (!slice) + return AVERROR(ENOMEM); + err = cbs_h265_read_slice_segment_header(ctx, &bc, &slice->header); + if (err < 0) { + av_free(slice); + return err; + } + + pos = bitstream_tell(&bc); + len = unit->data_size; + if (!unit->data[len - 1]) { + int z; + for (z = 0; z < len && !unit->data[len - z - 1]; z++); + av_log(ctx->log_ctx, AV_LOG_DEBUG, "Deleted %d trailing zeroes " + "from slice data.\n", z); + len -= z; + } + + slice->data_size = len - pos / 8; + slice->data = av_malloc(slice->data_size); + if (!slice->data) { + av_free(slice); + return AVERROR(ENOMEM); + } + memcpy(slice->data, + unit->data + pos / 8, slice->data_size); + slice->data_bit_start = pos % 8; + + unit->content = slice; + } + break; + + case HEVC_NAL_AUD: + { + H265RawAUD *aud; + + aud = av_mallocz(sizeof(*aud)); + if (!aud) + return AVERROR(ENOMEM); + err = cbs_h265_read_aud(ctx, &bc, aud); + if (err < 0) { + av_free(aud); + return err; + } + + unit->content = aud; + } + break; + + default: + return AVERROR(ENOSYS); + } + + return 0; +} + static int cbs_h264_write_nal_unit(CodedBitstreamContext *ctx, CodedBitstreamUnit *unit, PutBitContext *pbc) @@ -842,6 +1086,127 @@ static int cbs_h264_write_nal_unit(CodedBitstreamContext *ctx, return 0; } +static int cbs_h265_write_nal_unit(CodedBitstreamContext *ctx, + CodedBitstreamUnit *unit, + PutBitContext *pbc) +{ + int err; + + switch (unit->type) { + case HEVC_NAL_VPS: + { + H265RawVPS *vps = unit->content; + + err = cbs_h265_write_vps(ctx, pbc, vps); + if (err < 0) + return err; + + err = cbs_h265_replace_vps(ctx, vps); + if (err < 0) + return err; + } + break; + + case HEVC_NAL_SPS: + { + H265RawSPS *sps = unit->content; + + err = cbs_h265_write_sps(ctx, pbc, sps); + if (err < 0) + return err; + + err = cbs_h265_replace_sps(ctx, sps); + if (err < 0) + return err; + } + break; + + case HEVC_NAL_PPS: + { + H265RawPPS *pps = unit->content; + + err = cbs_h265_write_pps(ctx, pbc, pps); + if (err < 0) + return err; + + err = cbs_h265_replace_pps(ctx, pps); + if (err < 0) + return err; + } + break; + + case HEVC_NAL_TRAIL_N: + case HEVC_NAL_TRAIL_R: + case HEVC_NAL_TSA_N: + case HEVC_NAL_TSA_R: + case HEVC_NAL_STSA_N: + case HEVC_NAL_STSA_R: + case HEVC_NAL_RADL_N: + case HEVC_NAL_RADL_R: + case HEVC_NAL_RASL_N: + case HEVC_NAL_RASL_R: + case HEVC_NAL_BLA_W_LP: + case HEVC_NAL_BLA_W_RADL: + case HEVC_NAL_BLA_N_LP: + case HEVC_NAL_IDR_W_RADL: + case HEVC_NAL_IDR_N_LP: + case HEVC_NAL_CRA_NUT: + { + H265RawSlice *slice = unit->content; + BitstreamContext bc; + int bits_left, end, zeroes; + + err = cbs_h265_write_slice_segment_header(ctx, pbc, &slice->header); + if (err < 0) + return err; + + if (slice->data) { + if (slice->data_size * 8 + 8 > put_bits_left(pbc)) + return AVERROR(ENOSPC); + + bitstream_init(&bc, slice->data, slice->data_size * 8); + bitstream_skip(&bc, slice->data_bit_start); + + // Copy in two-byte blocks, but stop before copying the + // rbsp_stop_one_bit in the final byte. + while (bitstream_bits_left(&bc) > 23) + put_bits(pbc, 16, bitstream_read(&bc, 16)); + + bits_left = bitstream_bits_left(&bc); + end = bitstream_read(&bc, bits_left); + + // rbsp_stop_one_bit must be present here. + av_assert0(end); + zeroes = ff_ctz(end); + if (bits_left > zeroes + 1) + put_bits(pbc, bits_left - zeroes - 1, + end >> (zeroes + 1)); + put_bits(pbc, 1, 1); + while (put_bits_count(pbc) % 8 != 0) + put_bits(pbc, 1, 0); + } else { + // No slice data - that was just the header. + } + } + break; + + case HEVC_NAL_AUD: + { + err = cbs_h265_write_aud(ctx, pbc, unit->content); + if (err < 0) + return err; + } + break; + + default: + av_log(ctx->log_ctx, AV_LOG_ERROR, "Write unimplemented for " + "NAL unit type %d.\n", unit->type); + return AVERROR_PATCHWELCOME; + } + + return 0; +} + static int cbs_h2645_write_nal_unit(CodedBitstreamContext *ctx, CodedBitstreamUnit *unit) { @@ -866,7 +1231,10 @@ static int cbs_h2645_write_nal_unit(CodedBitstreamContext *ctx, init_put_bits(&pbc, priv->write_buffer, priv->write_buffer_size); - err = cbs_h264_write_nal_unit(ctx, unit, &pbc); + if (codec_id == AV_CODEC_ID_H264) + err = cbs_h264_write_nal_unit(ctx, unit, &pbc); + else + err = cbs_h265_write_nal_unit(ctx, unit, &pbc); if (err == AVERROR(ENOSPC)) { // Overflow. @@ -927,8 +1295,13 @@ static int cbs_h2645_assemble_fragment(CodedBitstreamContext *ctx, frag->data_bit_padding = unit->data_bit_padding; } - if (unit->type == H264_NAL_SPS || - unit->type == H264_NAL_PPS || + if ((ctx->codec->codec_id == AV_CODEC_ID_H264 && + (unit->type == H264_NAL_SPS || + unit->type == H264_NAL_PPS)) || + (ctx->codec->codec_id == AV_CODEC_ID_HEVC && + (unit->type == HEVC_NAL_VPS || + unit->type == HEVC_NAL_SPS || + unit->type == HEVC_NAL_PPS)) || i == 0 /* (Assume this is the start of an access unit.) */) { // zero_byte data[dp++] = 0; @@ -982,6 +1355,23 @@ static void cbs_h264_close(CodedBitstreamContext *ctx) av_freep(&h264->pps[i]); } +static void cbs_h265_close(CodedBitstreamContext *ctx) +{ + CodedBitstreamH265Context *h265 = ctx->priv_data; + int i; + + ff_h2645_packet_uninit(&h265->common.read_packet); + + av_freep(&h265->common.write_buffer); + + for (i = 0; i < FF_ARRAY_ELEMS(h265->vps); i++) + av_freep(&h265->vps[i]); + for (i = 0; i < FF_ARRAY_ELEMS(h265->sps); i++) + av_freep(&h265->sps[i]); + for (i = 0; i < FF_ARRAY_ELEMS(h265->pps); i++) + av_freep(&h265->pps[i]); +} + const CodedBitstreamType ff_cbs_type_h264 = { .codec_id = AV_CODEC_ID_H264, @@ -995,3 +1385,17 @@ const CodedBitstreamType ff_cbs_type_h264 = { .free_unit = &cbs_h264_free_nal_unit, .close = &cbs_h264_close, }; + +const CodedBitstreamType ff_cbs_type_h265 = { + .codec_id = AV_CODEC_ID_HEVC, + + .priv_data_size = sizeof(CodedBitstreamH265Context), + + .split_fragment = &cbs_h2645_split_fragment, + .read_unit = &cbs_h265_read_nal_unit, + .write_unit = &cbs_h2645_write_nal_unit, + .assemble_fragment = &cbs_h2645_assemble_fragment, + + .free_unit = &cbs_h265_free_nal_unit, + .close = &cbs_h265_close, +}; diff --git a/libavcodec/cbs_h265.h b/libavcodec/cbs_h265.h new file mode 100644 index 0000000000..6ee0725933 --- /dev/null +++ b/libavcodec/cbs_h265.h @@ -0,0 +1,537 @@ +/* + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVCODEC_CBS_H265_H +#define AVCODEC_CBS_H265_H + +#include <stddef.h> +#include <stdint.h> + +#include "cbs_h2645.h" +#include "hevc.h" + + +typedef struct H265RawNALUnitHeader { + uint8_t forbidden_zero_bit; + uint8_t nal_unit_type; + uint8_t nuh_layer_id; + uint8_t nuh_temporal_id_plus1; +} H265RawNALUnitHeader; + +typedef struct H265RawProfileTierLevel { + uint8_t general_profile_space; + uint8_t general_tier_flag; + uint8_t general_profile_idc; + + uint8_t general_profile_compatibility_flag[32]; + + uint8_t general_progressive_source_flag; + uint8_t general_interlaced_source_flag; + uint8_t general_non_packed_constraint_flag; + uint8_t general_frame_only_constraint_flag; + + uint8_t general_max_12bit_constraint_flag; + uint8_t general_max_10bit_constraint_flag; + uint8_t general_max_8bit_constraint_flag; + uint8_t general_max_422chroma_constraint_flag; + uint8_t general_max_420chroma_constraint_flag; + uint8_t general_max_monochrome_constraint_flag; + uint8_t general_intra_constraint_flag; + uint8_t general_one_picture_only_constraint_flag; + uint8_t general_lower_bit_rate_constraint_flag; + uint8_t general_max_14bit_constraint_flag; + + uint8_t general_inbld_flag; + + uint8_t general_level_idc; + + uint8_t sub_layer_profile_present_flag[HEVC_MAX_SUB_LAYERS]; + uint8_t sub_layer_level_present_flag[HEVC_MAX_SUB_LAYERS]; + + // TODO: much of that again for each sub-layer. +} H265RawProfileTierLevel; + +typedef struct H265RawSubLayerHRDParameters { + uint32_t bit_rate_value_minus1[HEVC_MAX_CPB_CNT]; + uint32_t cpb_size_value_minus1[HEVC_MAX_CPB_CNT]; + uint32_t cpb_size_du_value_minus1[HEVC_MAX_CPB_CNT]; + uint32_t bit_rate_du_value_minus1[HEVC_MAX_CPB_CNT]; + uint8_t cbr_flag[HEVC_MAX_CPB_CNT]; +} H265RawSubLayerHRDParameters; + +typedef struct H265RawHRDParameters { + uint8_t nal_hrd_parameters_present_flag; + uint8_t vcl_hrd_parameters_present_flag; + + uint8_t sub_pic_hrd_params_present_flag; + uint8_t tick_divisor_minus2; + uint8_t du_cpb_removal_delay_increment_length_minus1; + uint8_t sub_pic_cpb_params_in_pic_timing_sei_flag; + uint8_t dpb_output_delay_du_length_minus1; + + uint8_t bit_rate_scale; + uint8_t cpb_size_scale; + uint8_t cpb_size_du_scale; + + uint8_t initial_cpb_removal_delay_length_minus1; + uint8_t au_cpb_removal_delay_length_minus1; + uint8_t dpb_output_delay_length_minus1; + + uint8_t fixed_pic_rate_general_flag[HEVC_MAX_SUB_LAYERS]; + uint8_t fixed_pic_rate_within_cvs_flag[HEVC_MAX_SUB_LAYERS]; + uint16_t elemental_duration_in_tc_minus1[HEVC_MAX_SUB_LAYERS]; + uint8_t low_delay_hrd_flag[HEVC_MAX_SUB_LAYERS]; + uint8_t cpb_cnt_minus1[HEVC_MAX_SUB_LAYERS]; + H265RawSubLayerHRDParameters nal_sub_layer_hrd_parameters[HEVC_MAX_SUB_LAYERS]; + H265RawSubLayerHRDParameters vcl_sub_layer_hrd_parameters[HEVC_MAX_SUB_LAYERS]; +} H265RawHRDParameters; + +typedef struct H265RawVUI { + uint8_t aspect_ratio_info_present_flag; + uint8_t aspect_ratio_idc; + uint16_t sar_width; + uint16_t sar_height; + + uint8_t overscan_info_present_flag; + uint8_t overscan_appropriate_flag; + + uint8_t video_signal_type_present_flag; + uint8_t video_format; + uint8_t video_full_range_flag; + uint8_t colour_description_present_flag; + uint8_t colour_primaries; + uint8_t transfer_characteristics; + uint8_t matrix_coefficients; + + uint8_t chroma_loc_info_present_flag; + uint8_t chroma_sample_loc_type_top_field; + uint8_t chroma_sample_loc_type_bottom_field; + + uint8_t neutral_chroma_indication_flag; + uint8_t field_seq_flag; + uint8_t frame_field_info_present_flag; + + uint8_t default_display_window_flag; + uint16_t def_disp_win_left_offset; + uint16_t def_disp_win_right_offset; + uint16_t def_disp_win_top_offset; + uint16_t def_disp_win_bottom_offset; + + uint8_t vui_timing_info_present_flag; + uint32_t vui_num_units_in_tick; + uint32_t vui_time_scale; + uint8_t vui_poc_proportional_to_timing_flag; + uint32_t vui_num_ticks_poc_diff_one_minus1; + uint8_t vui_hrd_parameters_present_flag; + H265RawHRDParameters hrd_parameters; + + uint8_t bitstream_restriction_flag; + uint8_t tiles_fixed_structure_flag; + uint8_t motion_vectors_over_pic_boundaries_flag; + uint8_t restricted_ref_pic_lists_flag; + uint16_t min_spatial_segmentation_idc; + uint8_t max_bytes_per_pic_denom; + uint8_t max_bits_per_min_cu_denom; + uint8_t log2_max_mv_length_horizontal; + uint8_t log2_max_mv_length_vertical; +} H265RawVUI; + +typedef struct H265RawPSExtensionData { + uint8_t *data; + size_t bit_length; +} H265RawPSExtensionData; + +typedef struct H265RawVPS { + H265RawNALUnitHeader nal_unit_header; + + uint8_t vps_video_parameter_set_id; + + uint8_t vps_base_layer_internal_flag; + uint8_t vps_base_layer_available_flag; + uint8_t vps_max_layers_minus1; + uint8_t vps_max_sub_layers_minus1; + uint8_t vps_temporal_id_nesting_flag; + + H265RawProfileTierLevel profile_tier_level; + + uint8_t vps_sub_layer_ordering_info_present_flag; + uint8_t vps_max_dec_pic_buffering_minus1[HEVC_MAX_SUB_LAYERS]; + uint8_t vps_max_num_reorder_pics[HEVC_MAX_SUB_LAYERS]; + uint32_t vps_max_latency_increase_plus1[HEVC_MAX_SUB_LAYERS]; + + uint8_t vps_max_layer_id; + uint16_t vps_num_layer_sets_minus1; + uint8_t layer_id_included_flag[HEVC_MAX_LAYER_SETS][HEVC_MAX_LAYERS]; + + uint8_t vps_timing_info_present_flag; + uint32_t vps_num_units_in_tick; + uint32_t vps_time_scale; + uint8_t vps_poc_proportional_to_timing_flag; + uint32_t vps_num_ticks_poc_diff_one_minus1; + uint16_t vps_num_hrd_parameters; + uint16_t hrd_layer_set_idx[HEVC_MAX_LAYER_SETS]; + uint8_t cprms_present_flag[HEVC_MAX_LAYER_SETS]; + H265RawHRDParameters hrd_parameters[HEVC_MAX_LAYER_SETS]; + + uint8_t vps_extension_flag; + H265RawPSExtensionData extension_data; +} H265RawVPS; + +typedef struct H265RawSTRefPicSet { + uint8_t inter_ref_pic_set_prediction_flag; + + uint8_t delta_idx_minus1; + uint8_t delta_rps_sign; + uint16_t abs_delta_rps_minus1; + + uint8_t used_by_curr_pic_flag[HEVC_MAX_REFS]; + uint8_t use_delta_flag[HEVC_MAX_REFS]; + + uint8_t num_negative_pics; + uint8_t num_positive_pics; + uint16_t delta_poc_s0_minus1[HEVC_MAX_REFS]; + uint8_t used_by_curr_pic_s0_flag[HEVC_MAX_REFS]; + uint16_t delta_poc_s1_minus1[HEVC_MAX_REFS]; + uint8_t used_by_curr_pic_s1_flag[HEVC_MAX_REFS]; +} H265RawSTRefPicSet; + +typedef struct H265RawScalingList { + uint8_t scaling_list_pred_mode_flag[4][6]; + uint8_t scaling_list_pred_matrix_id_delta[4][6]; + int16_t scaling_list_dc_coef_minus8[4][6]; + int8_t scaling_list_delta_coeff[4][6][64]; +} H265RawScalingList; + +typedef struct H265RawSPS { + H265RawNALUnitHeader nal_unit_header; + + uint8_t sps_video_parameter_set_id; + + uint8_t sps_max_sub_layers_minus1; + uint8_t sps_temporal_id_nesting_flag; + + H265RawProfileTierLevel profile_tier_level; + + uint8_t sps_seq_parameter_set_id; + + uint8_t chroma_format_idc; + uint8_t separate_colour_plane_flag; + + uint16_t pic_width_in_luma_samples; + uint16_t pic_height_in_luma_samples; + + uint8_t conformance_window_flag; + uint16_t conf_win_left_offset; + uint16_t conf_win_right_offset; + uint16_t conf_win_top_offset; + uint16_t conf_win_bottom_offset; + + uint8_t bit_depth_luma_minus8; + uint8_t bit_depth_chroma_minus8; + + uint8_t log2_max_pic_order_cnt_lsb_minus4; + + uint8_t sps_sub_layer_ordering_info_present_flag; + uint8_t sps_max_dec_pic_buffering_minus1[HEVC_MAX_SUB_LAYERS]; + uint8_t sps_max_num_reorder_pics[HEVC_MAX_SUB_LAYERS]; + uint32_t sps_max_latency_increase_plus1[HEVC_MAX_SUB_LAYERS]; + + uint8_t log2_min_luma_coding_block_size_minus3; + uint8_t log2_diff_max_min_luma_coding_block_size; + uint8_t log2_min_luma_transform_block_size_minus2; + uint8_t log2_diff_max_min_luma_transform_block_size; + uint8_t max_transform_hierarchy_depth_inter; + uint8_t max_transform_hierarchy_depth_intra; + + uint8_t scaling_list_enabled_flag; + uint8_t sps_scaling_list_data_present_flag; + H265RawScalingList scaling_list; + + uint8_t amp_enabled_flag; + uint8_t sample_adaptive_offset_enabled_flag; + + uint8_t pcm_enabled_flag; + uint8_t pcm_sample_bit_depth_luma_minus1; + uint8_t pcm_sample_bit_depth_chroma_minus1; + uint8_t log2_min_pcm_luma_coding_block_size_minus3; + uint8_t log2_diff_max_min_pcm_luma_coding_block_size; + uint8_t pcm_loop_filter_disabled_flag; + + uint8_t num_short_term_ref_pic_sets; + H265RawSTRefPicSet st_ref_pic_set[HEVC_MAX_SHORT_TERM_REF_PIC_SETS]; + + uint8_t long_term_ref_pics_present_flag; + uint8_t num_long_term_ref_pics_sps; + uint16_t lt_ref_pic_poc_lsb_sps[HEVC_MAX_LONG_TERM_REF_PICS]; + uint8_t used_by_curr_pic_lt_sps_flag[HEVC_MAX_LONG_TERM_REF_PICS]; + + uint8_t sps_temporal_mvp_enabled_flag; + uint8_t strong_intra_smoothing_enabled_flag; + + uint8_t vui_parameters_present_flag; + H265RawVUI vui; + + uint8_t sps_extension_present_flag; + uint8_t sps_range_extension_flag; + uint8_t sps_multilayer_extension_flag; + uint8_t sps_3d_extension_flag; + uint8_t sps_scc_extension_flag; + uint8_t sps_extension_4bits; + + H265RawPSExtensionData extension_data; + + // Range extension. + uint8_t transform_skip_rotation_enabled_flag; + uint8_t transform_skip_context_enabled_flag; + uint8_t implicit_rdpcm_enabled_flag; + uint8_t explicit_rdpcm_enabled_flag; + uint8_t extended_precision_processing_flag; + uint8_t intra_smoothing_disabled_flag; + uint8_t high_precision_offsets_enabled_flag; + uint8_t persistent_rice_adaptation_enabled_flag; + uint8_t cabac_bypass_alignment_enabled_flag; + + // Screen content coding extension. + uint8_t sps_curr_pic_ref_enabled_flag; + uint8_t palette_mode_enabled_flag; + uint8_t palette_max_size; + uint8_t delta_palette_max_predictor_size; + uint8_t sps_palette_predictor_initializer_present_flag; + uint8_t sps_num_palette_predictor_initializer_minus1; + uint16_t sps_palette_predictor_initializers[3][128]; + + uint8_t motion_vector_resolution_control_idc; + uint8_t intra_boundary_filtering_disable_flag; +} H265RawSPS; + +typedef struct H265RawPPS { + H265RawNALUnitHeader nal_unit_header; + + uint8_t pps_pic_parameter_set_id; + uint8_t pps_seq_parameter_set_id; + + uint8_t dependent_slice_segments_enabled_flag; + uint8_t output_flag_present_flag; + uint8_t num_extra_slice_header_bits; + uint8_t sign_data_hiding_enabled_flag; + uint8_t cabac_init_present_flag; + + uint8_t num_ref_idx_l0_default_active_minus1; + uint8_t num_ref_idx_l1_default_active_minus1; + + int8_t init_qp_minus26; + + uint8_t constrained_intra_pred_flag; + uint8_t transform_skip_enabled_flag; + uint8_t cu_qp_delta_enabled_flag; + uint8_t diff_cu_qp_delta_depth; + + int8_t pps_cb_qp_offset; + int8_t pps_cr_qp_offset; + uint8_t pps_slice_chroma_qp_offsets_present_flag; + + uint8_t weighted_pred_flag; + uint8_t weighted_bipred_flag; + + uint8_t transquant_bypass_enabled_flag; + uint8_t tiles_enabled_flag; + uint8_t entropy_coding_sync_enabled_flag; + + uint8_t num_tile_columns_minus1; + uint8_t num_tile_rows_minus1; + uint8_t uniform_spacing_flag; + uint16_t column_width_minus1[HEVC_MAX_TILE_COLUMNS]; + uint16_t row_height_minus1[HEVC_MAX_TILE_ROWS]; + uint8_t loop_filter_across_tiles_enabled_flag; + + uint8_t pps_loop_filter_across_slices_enabled_flag; + uint8_t deblocking_filter_control_present_flag; + uint8_t deblocking_filter_override_enabled_flag; + uint8_t pps_deblocking_filter_disabled_flag; + int8_t pps_beta_offset_div2; + int8_t pps_tc_offset_div2; + + uint8_t pps_scaling_list_data_present_flag; + H265RawScalingList scaling_list; + + uint8_t lists_modification_present_flag; + uint8_t log2_parallel_merge_level_minus2; + + uint8_t slice_segment_header_extension_present_flag; + + uint8_t pps_extension_present_flag; + uint8_t pps_range_extension_flag; + uint8_t pps_multilayer_extension_flag; + uint8_t pps_3d_extension_flag; + uint8_t pps_scc_extension_flag; + uint8_t pps_extension_4bits; + + H265RawPSExtensionData extension_data; + + // Range extension. + uint8_t log2_max_transform_skip_block_size_minus2; + uint8_t cross_component_prediction_enabled_flag; + uint8_t chroma_qp_offset_list_enabled_flag; + uint8_t diff_cu_chroma_qp_offset_depth; + uint8_t chroma_qp_offset_list_len_minus1; + int8_t cb_qp_offset_list[6]; + int8_t cr_qp_offset_list[6]; + uint8_t log2_sao_offset_scale_luma; + uint8_t log2_sao_offset_scale_chroma; + + // Screen content coding extension. + uint8_t pps_curr_pic_ref_enabled_flag; + uint8_t residual_adaptive_colour_transform_enabled_flag; + uint8_t pps_slice_act_qp_offsets_present_flag; + int8_t pps_act_y_qp_offset_plus5; + int8_t pps_act_cb_qp_offset_plus5; + int8_t pps_act_cr_qp_offset_plus3; + + uint8_t pps_palette_predictor_initializer_present_flag; + uint8_t pps_num_palette_predictor_initializer; + uint8_t monochrome_palette_flag; + uint8_t luma_bit_depth_entry_minus8; + uint8_t chroma_bit_depth_entry_minus8; + uint16_t pps_palette_predictor_initializers[3][128]; +} H265RawPPS; + +typedef struct H265RawAUD { + H265RawNALUnitHeader nal_unit_header; + + uint8_t pic_type; +} H265RawAUD; + +typedef struct H265RawSliceHeader { + H265RawNALUnitHeader nal_unit_header; + + uint8_t first_slice_segment_in_pic_flag; + uint8_t no_output_of_prior_pics_flag; + uint8_t slice_pic_parameter_set_id; + + uint8_t dependent_slice_segment_flag; + uint16_t slice_segment_address; + + uint8_t slice_reserved_flag[8]; + uint8_t slice_type; + + uint8_t pic_output_flag; + uint8_t colour_plane_id; + + uint16_t slice_pic_order_cnt_lsb; + + uint8_t short_term_ref_pic_set_sps_flag; + H265RawSTRefPicSet short_term_ref_pic_set; + uint8_t short_term_ref_pic_set_idx; + + uint8_t num_long_term_sps; + uint8_t num_long_term_pics; + uint8_t lt_idx_sps[HEVC_MAX_REFS]; + uint8_t poc_lsb_lt[HEVC_MAX_REFS]; + uint8_t used_by_curr_pic_lt_flag[HEVC_MAX_REFS]; + uint8_t delta_poc_msb_present_flag[HEVC_MAX_REFS]; + uint32_t delta_poc_msb_cycle_lt[HEVC_MAX_REFS]; + + uint8_t slice_temporal_mvp_enabled_flag; + + uint8_t slice_sao_luma_flag; + uint8_t slice_sao_chroma_flag; + + uint8_t num_ref_idx_active_override_flag; + uint8_t num_ref_idx_l0_active_minus1; + uint8_t num_ref_idx_l1_active_minus1; + + uint8_t ref_pic_list_modification_flag_l0; + uint8_t list_entry_l0[HEVC_MAX_REFS]; + uint8_t ref_pic_list_modification_flag_l1; + uint8_t list_entry_l1[HEVC_MAX_REFS]; + + uint8_t mvd_l1_zero_flag; + uint8_t cabac_init_flag; + uint8_t collocated_from_l0_flag; + uint8_t collocated_ref_idx; + + uint8_t luma_log2_weight_denom; + int8_t delta_chroma_log2_weight_denom; + uint8_t luma_weight_l0_flag[HEVC_MAX_REFS]; + uint8_t chroma_weight_l0_flag[HEVC_MAX_REFS]; + int8_t delta_luma_weight_l0[HEVC_MAX_REFS]; + int16_t luma_offset_l0[HEVC_MAX_REFS]; + int8_t delta_chroma_weight_l0[HEVC_MAX_REFS][2]; + int16_t chroma_offset_l0[HEVC_MAX_REFS][2]; + uint8_t luma_weight_l1_flag[HEVC_MAX_REFS]; + uint8_t chroma_weight_l1_flag[HEVC_MAX_REFS]; + int8_t delta_luma_weight_l1[HEVC_MAX_REFS]; + int16_t luma_offset_l1[HEVC_MAX_REFS]; + int8_t delta_chroma_weight_l1[HEVC_MAX_REFS][2]; + int16_t chroma_offset_l1[HEVC_MAX_REFS][2]; + + uint8_t five_minus_max_num_merge_cand; + uint8_t use_integer_mv_flag; + + int8_t slice_qp_delta; + int8_t slice_cb_qp_offset; + int8_t slice_cr_qp_offset; + int8_t slice_act_y_qp_offset; + int8_t slice_act_cb_qp_offset; + int8_t slice_act_cr_qp_offset; + uint8_t cu_chroma_qp_offset_enabled_flag; + + uint8_t deblocking_filter_override_flag; + uint8_t slice_deblocking_filter_disabled_flag; + int8_t slice_beta_offset_div2; + int8_t slice_tc_offset_div2; + uint8_t slice_loop_filter_across_slices_enabled_flag; + + uint16_t num_entry_point_offsets; + uint8_t offset_len_minus1; + uint32_t entry_point_offset_minus1[HEVC_MAX_ENTRY_POINT_OFFSETS]; + + uint16_t slice_segment_header_extension_length; + uint8_t slice_segment_header_extension_data_byte[256]; +} H265RawSliceHeader; + + +typedef struct H265RawSlice { + H265RawSliceHeader header; + + uint8_t *data; + size_t data_size; + int data_bit_start; +} H265RawSlice; + + +typedef struct CodedBitstreamH265Context { + // Reader/writer context in common with the H.264 implementation. + CodedBitstreamH2645Context common; + + // All currently available parameter sets. These are updated when + // any parameter set NAL unit is read/written with this context. + H265RawVPS *vps[HEVC_MAX_VPS_COUNT]; + H265RawSPS *sps[HEVC_MAX_SPS_COUNT]; + H265RawPPS *pps[HEVC_MAX_PPS_COUNT]; + + // The currently active parameter sets. These are updated when any + // NAL unit refers to the relevant parameter set. These pointers + // must also be present in the arrays above. + const H265RawVPS *active_vps; + const H265RawSPS *active_sps; + const H265RawPPS *active_pps; +} CodedBitstreamH265Context; + + +#endif /* AVCODEC_CBS_H265_H */ diff --git a/libavcodec/cbs_h265_syntax_template.c b/libavcodec/cbs_h265_syntax_template.c new file mode 100644 index 0000000000..40fdaf8a90 --- /dev/null +++ b/libavcodec/cbs_h265_syntax_template.c @@ -0,0 +1,1502 @@ +/* + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +static int FUNC(rbsp_trailing_bits)(CodedBitstreamContext *ctx, RWContext *rw) +{ + int err; + av_unused int one = 1, zero = 0; + xu(1, rbsp_stop_one_bit, one, 1, 1); + while (byte_alignment(rw) != 0) + xu(1, rbsp_alignment_zero_bit, zero, 0, 0); + + return 0; +} + +static int FUNC(nal_unit_header)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawNALUnitHeader *current, + int expected_nal_unit_type) +{ + int err; + + u(1, forbidden_zero_bit, 0, 0); + + if (expected_nal_unit_type >= 0) + u(6, nal_unit_type, expected_nal_unit_type, + expected_nal_unit_type); + else + u(6, nal_unit_type, 0, 63); + + u(6, nuh_layer_id, 0, 62); + u(3, nuh_temporal_id_plus1, 1, 7); + + return 0; +} + +static int FUNC(byte_alignment)(CodedBitstreamContext *ctx, RWContext *rw) +{ + int err; + av_unused int one = 1, zero = 0; + xu(1, alignment_bit_equal_to_one, one, 1, 1); + while (byte_alignment(rw) != 0) + xu(1, alignment_bit_equal_to_zero, zero, 0, 0); + + return 0; +} + +static int FUNC(extension_data)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawPSExtensionData *current) +{ + int err; + size_t k; +#ifdef READ + BitstreamContext start; + uint8_t bit; + start = *rw; + for (k = 0; cbs_h2645_read_more_rbsp_data(rw); k++); + current->bit_length = k; + if (k > 0) { + *rw = start; + allocate(current->data, (current->bit_length + 7) / 8); + for (k = 0; k < current->bit_length; k++) { + xu(1, extension_data, bit, 0, 1); + current->data[k / 8] |= bit << (7 - k % 8); + } + } +#else + for (k = 0; k < current->bit_length; k++) + xu(1, extension_data, current->data[k / 8] >> (7 - k % 8), 0, 1); +#endif + return 0; +} + +static int FUNC(profile_tier_level)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawProfileTierLevel *current, + int profile_present_flag, + int max_num_sub_layers_minus1) +{ + av_unused unsigned int zero = 0; + int err, i, j; + + if (profile_present_flag) { + u(2, general_profile_space, 0, 0); + flag(general_tier_flag); + u(5, general_profile_idc, 0, 31); + + for (j = 0; j < 32; j++) + flag(general_profile_compatibility_flag[j]); + + flag(general_progressive_source_flag); + flag(general_interlaced_source_flag); + flag(general_non_packed_constraint_flag); + flag(general_frame_only_constraint_flag); + +#define profile_compatible(x) (current->general_profile_idc == (x) || \ + current->general_profile_compatibility_flag[x]) + if (profile_compatible(4) || profile_compatible(5) || + profile_compatible(6) || profile_compatible(7) || + profile_compatible(8) || profile_compatible(9) || + profile_compatible(10)) { + flag(general_max_12bit_constraint_flag); + flag(general_max_10bit_constraint_flag); + flag(general_max_8bit_constraint_flag); + flag(general_max_422chroma_constraint_flag); + flag(general_max_420chroma_constraint_flag); + flag(general_max_monochrome_constraint_flag); + flag(general_intra_constraint_flag); + flag(general_one_picture_only_constraint_flag); + flag(general_lower_bit_rate_constraint_flag); + + if (profile_compatible(5) || profile_compatible(9) || + profile_compatible(10)) { + flag(general_max_14bit_constraint_flag); + xu(24, general_reserved_zero_33bits, zero, 0, 0); + xu(9, general_reserved_zero_33bits, zero, 0, 0); + } else { + xu(24, general_reserved_zero_34bits, zero, 0, 0); + xu(10, general_reserved_zero_34bits, zero, 0, 0); + } + } else { + xu(24, general_reserved_zero_43bits, zero, 0, 0); + xu(19, general_reserved_zero_43bits, zero, 0, 0); + } + + if (profile_compatible(1) || profile_compatible(2) || + profile_compatible(3) || profile_compatible(4) || + profile_compatible(5) || profile_compatible(9)) { + flag(general_inbld_flag); + } else { + xu(1, general_reserved_zero_bit, zero, 0, 0); + } +#undef profile_compatible + } + + u(8, general_level_idc, 0, 255); + + for (i = 0; i < max_num_sub_layers_minus1; i++) { + flag(sub_layer_profile_present_flag[i]); + flag(sub_layer_level_present_flag[i]); + } + + if (max_num_sub_layers_minus1 > 0) { + for (i = max_num_sub_layers_minus1; i < 8; i++) { + av_unused int zero = 0; + xu(2, reserved_zero_2bits, zero, 0, 0); + } + } + + for (i = 0; i < max_num_sub_layers_minus1; i++) { + if (current->sub_layer_profile_present_flag[i]) + return AVERROR_PATCHWELCOME; + if (current->sub_layer_level_present_flag[i]) + return AVERROR_PATCHWELCOME; + } + + return 0; +} + +static int FUNC(sub_layer_hrd_parameters)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawHRDParameters *hrd, + int nal, int sub_layer_id) +{ + H265RawSubLayerHRDParameters *current; + int err, i; + + if (nal) + current = &hrd->nal_sub_layer_hrd_parameters[sub_layer_id]; + else + current = &hrd->vcl_sub_layer_hrd_parameters[sub_layer_id]; + + for (i = 0; i <= hrd->cpb_cnt_minus1[sub_layer_id]; i++) { + ue(bit_rate_value_minus1[i], 0, UINT32_MAX - 1); + ue(cpb_size_value_minus1[i], 0, UINT32_MAX - 1); + if (hrd->sub_pic_hrd_params_present_flag) { + ue(cpb_size_du_value_minus1[i], 0, UINT32_MAX - 1); + ue(bit_rate_du_value_minus1[i], 0, UINT32_MAX - 1); + } + flag(cbr_flag[i]); + } + + return 0; +} + +static int FUNC(hrd_parameters)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawHRDParameters *current, int common_inf_present_flag, + int max_num_sub_layers_minus1) +{ + int err, i; + + if (common_inf_present_flag) { + flag(nal_hrd_parameters_present_flag); + flag(vcl_hrd_parameters_present_flag); + + if (current->nal_hrd_parameters_present_flag || + current->vcl_hrd_parameters_present_flag) { + flag(sub_pic_hrd_params_present_flag); + if (current->sub_pic_hrd_params_present_flag) { + u(8, tick_divisor_minus2, 0, 255); + u(5, du_cpb_removal_delay_increment_length_minus1, 0, 31); + flag(sub_pic_cpb_params_in_pic_timing_sei_flag); + u(5, dpb_output_delay_du_length_minus1, 0, 31); + } + + u(4, bit_rate_scale, 0, 15); + u(4, cpb_size_scale, 0, 15); + if (current->sub_pic_hrd_params_present_flag) + u(4, cpb_size_du_scale, 0, 15); + + u(5, initial_cpb_removal_delay_length_minus1, 0, 31); + u(5, au_cpb_removal_delay_length_minus1, 0, 31); + u(5, dpb_output_delay_length_minus1, 0, 31); + } else { + infer(sub_pic_hrd_params_present_flag, 0); + + infer(initial_cpb_removal_delay_length_minus1, 23); + infer(au_cpb_removal_delay_length_minus1, 23); + infer(dpb_output_delay_length_minus1, 23); + } + } + + for (i = 0; i <= max_num_sub_layers_minus1; i++) { + flag(fixed_pic_rate_general_flag[i]); + + if (!current->fixed_pic_rate_general_flag[i]) + flag(fixed_pic_rate_within_cvs_flag[i]); + else + infer(fixed_pic_rate_within_cvs_flag[i], 1); + + if (current->fixed_pic_rate_within_cvs_flag[i]) { + ue(elemental_duration_in_tc_minus1[i], 0, 2047); + infer(low_delay_hrd_flag[i], 0); + } else + flag(low_delay_hrd_flag[i]); + + if (!current->low_delay_hrd_flag[i]) + ue(cpb_cnt_minus1[i], 0, 31); + else + infer(cpb_cnt_minus1[i], 0); + + if (current->nal_hrd_parameters_present_flag) + CHECK(FUNC(sub_layer_hrd_parameters)(ctx, rw, current, 0, i)); + if (current->vcl_hrd_parameters_present_flag) + CHECK(FUNC(sub_layer_hrd_parameters)(ctx, rw, current, 1, i)); + } + + return 0; +} + +static int FUNC(vui_parameters)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawVUI *current, const H265RawSPS *sps) +{ + int err; + + flag(aspect_ratio_info_present_flag); + if (current->aspect_ratio_info_present_flag) { + u(8, aspect_ratio_idc, 0, 255); + if (current->aspect_ratio_idc == 255) { + u(16, sar_width, 0, 65535); + u(16, sar_height, 0, 65535); + } + } else { + infer(aspect_ratio_idc, 0); + } + + flag(overscan_info_present_flag); + if (current->overscan_info_present_flag) + flag(overscan_appropriate_flag); + + flag(video_signal_type_present_flag); + if (current->video_signal_type_present_flag) { + u(3, video_format, 0, 7); + flag(video_full_range_flag); + flag(colour_description_present_flag); + if (current->colour_description_present_flag) { + u(8, colour_primaries, 0, 255); + u(8, transfer_characteristics, 0, 255); + u(8, matrix_coefficients, 0, 255); + } else { + infer(colour_primaries, 2); + infer(transfer_characteristics, 2); + infer(matrix_coefficients, 2); + } + } else { + infer(video_format, 5); + infer(video_full_range_flag, 0); + infer(colour_primaries, 2); + infer(transfer_characteristics, 2); + infer(matrix_coefficients, 2); + } + + flag(chroma_loc_info_present_flag); + if (current->chroma_loc_info_present_flag) { + ue(chroma_sample_loc_type_top_field, 0, 5); + ue(chroma_sample_loc_type_bottom_field, 0, 5); + } else { + infer(chroma_sample_loc_type_top_field, 0); + infer(chroma_sample_loc_type_bottom_field, 0); + } + + flag(neutral_chroma_indication_flag); + flag(field_seq_flag); + flag(frame_field_info_present_flag); + + flag(default_display_window_flag); + if (current->default_display_window_flag) { + ue(def_disp_win_left_offset, 0, 16384); + ue(def_disp_win_right_offset, 0, 16384); + ue(def_disp_win_top_offset, 0, 16384); + ue(def_disp_win_bottom_offset, 0, 16384); + } + + flag(vui_timing_info_present_flag); + if (current->vui_timing_info_present_flag) { + u(32, vui_num_units_in_tick, 1, UINT32_MAX); + u(32, vui_time_scale, 1, UINT32_MAX); + flag(vui_poc_proportional_to_timing_flag); + if (current->vui_poc_proportional_to_timing_flag) + ue(vui_num_ticks_poc_diff_one_minus1, 0, UINT32_MAX - 1); + + flag(vui_hrd_parameters_present_flag); + if (current->vui_hrd_parameters_present_flag) { + CHECK(FUNC(hrd_parameters)(ctx, rw, ¤t->hrd_parameters, + 1, sps->sps_max_sub_layers_minus1)); + } + } + + flag(bitstream_restriction_flag); + if (current->bitstream_restriction_flag) { + flag(tiles_fixed_structure_flag); + flag(motion_vectors_over_pic_boundaries_flag); + flag(restricted_ref_pic_lists_flag); + ue(min_spatial_segmentation_idc, 0, 4095); + ue(max_bytes_per_pic_denom, 0, 16); + ue(max_bits_per_min_cu_denom, 0, 16); + ue(log2_max_mv_length_horizontal, 0, 16); + ue(log2_max_mv_length_vertical, 0, 16); + } else { + infer(tiles_fixed_structure_flag, 0); + infer(motion_vectors_over_pic_boundaries_flag, 1); + infer(min_spatial_segmentation_idc, 0); + infer(max_bytes_per_pic_denom, 2); + infer(max_bits_per_min_cu_denom, 1); + infer(log2_max_mv_length_horizontal, 15); + infer(log2_max_mv_length_vertical, 15); + } + + return 0; +} + +static int FUNC(vps)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawVPS *current) +{ + int err, i, j; + + HEADER("Video Parameter Set"); + + CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, HEVC_NAL_VPS)); + + u(4, vps_video_parameter_set_id, 0, 15); + + flag(vps_base_layer_internal_flag); + flag(vps_base_layer_available_flag); + u(6, vps_max_layers_minus1, 0, HEVC_MAX_LAYERS - 1); + u(3, vps_max_sub_layers_minus1, 0, HEVC_MAX_SUB_LAYERS - 1); + flag(vps_temporal_id_nesting_flag); + + if (current->vps_max_sub_layers_minus1 == 0 && + current->vps_temporal_id_nesting_flag != 1) { + av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid stream: " + "vps_temporal_id_nesting_flag must be 1 if " + "vps_max_sub_layers_minus1 is 0.\n"); + return AVERROR_INVALIDDATA; + } + + { + av_unused uint16_t ffff = 0xffff; + xu(16, vps_reserved_0xffff_16bits, ffff, 0xffff, 0xffff); + } + + CHECK(FUNC(profile_tier_level)(ctx, rw, ¤t->profile_tier_level, + 1, current->vps_max_sub_layers_minus1)); + + flag(vps_sub_layer_ordering_info_present_flag); + for (i = (current->vps_sub_layer_ordering_info_present_flag ? + 0 : current->vps_max_sub_layers_minus1); + i <= current->vps_max_sub_layers_minus1; i++) { + ue(vps_max_dec_pic_buffering_minus1[i], 0, HEVC_MAX_DPB_SIZE - 1); + ue(vps_max_num_reorder_pics[i], 0, current->vps_max_dec_pic_buffering_minus1[i]); + ue(vps_max_latency_increase_plus1[i], 0, UINT32_MAX - 1); + } + if (!current->vps_sub_layer_ordering_info_present_flag) { + for (i = 0; i < current->vps_max_sub_layers_minus1; i++) { + infer(vps_max_dec_pic_buffering_minus1[i], + current->vps_max_dec_pic_buffering_minus1[current->vps_max_sub_layers_minus1]); + infer(vps_max_num_reorder_pics[i], + current->vps_max_num_reorder_pics[current->vps_max_sub_layers_minus1]); + infer(vps_max_latency_increase_plus1[i], + current->vps_max_latency_increase_plus1[current->vps_max_sub_layers_minus1]); + } + } + + u(6, vps_max_layer_id, 0, HEVC_MAX_LAYERS - 1); + ue(vps_num_layer_sets_minus1, 0, HEVC_MAX_LAYER_SETS - 1); + for (i = 1; i <= current->vps_num_layer_sets_minus1; i++) { + for (j = 0; j <= current->vps_max_layer_id; j++) + flag(layer_id_included_flag[i][j]); + } + for (j = 0; j <= current->vps_max_layer_id; j++) + infer(layer_id_included_flag[0][j], j == 0); + + flag(vps_timing_info_present_flag); + if (current->vps_timing_info_present_flag) { + u(32, vps_num_units_in_tick, 1, UINT32_MAX); + u(32, vps_time_scale, 1, UINT32_MAX); + flag(vps_poc_proportional_to_timing_flag); + if (current->vps_poc_proportional_to_timing_flag) + ue(vps_num_ticks_poc_diff_one_minus1, 0, UINT32_MAX - 1); + ue(vps_num_hrd_parameters, 0, current->vps_num_layer_sets_minus1 + 1); + for (i = 0; i < current->vps_num_hrd_parameters; i++) { + ue(hrd_layer_set_idx[i], + current->vps_base_layer_internal_flag ? 0 : 1, + current->vps_num_layer_sets_minus1); + if (i > 0) + flag(cprms_present_flag[i]); + else + infer(cprms_present_flag[0], 1); + + CHECK(FUNC(hrd_parameters)(ctx, rw, ¤t->hrd_parameters[i], + current->cprms_present_flag[i], + current->vps_max_sub_layers_minus1)); + } + } + + flag(vps_extension_flag); + if (current->vps_extension_flag) + CHECK(FUNC(extension_data)(ctx, rw, ¤t->extension_data)); + + CHECK(FUNC(rbsp_trailing_bits)(ctx, rw)); + + return 0; +} + +static int FUNC(st_ref_pic_set)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawSTRefPicSet *current, int st_rps_idx, + const H265RawSPS *sps) +{ + int err, i, j; + + if (st_rps_idx != 0) + flag(inter_ref_pic_set_prediction_flag); + else + infer(inter_ref_pic_set_prediction_flag, 0); + + if (current->inter_ref_pic_set_prediction_flag) { + unsigned int ref_rps_idx, num_delta_pocs; + const H265RawSTRefPicSet *ref; + int delta_rps, d_poc; + int ref_delta_poc_s0[HEVC_MAX_REFS], ref_delta_poc_s1[HEVC_MAX_REFS]; + int delta_poc_s0[HEVC_MAX_REFS], delta_poc_s1[HEVC_MAX_REFS]; + uint8_t used_by_curr_pic_s0[HEVC_MAX_REFS], + used_by_curr_pic_s1[HEVC_MAX_REFS]; + + if (st_rps_idx == sps->num_short_term_ref_pic_sets) + ue(delta_idx_minus1, 0, st_rps_idx - 1); + else + infer(delta_idx_minus1, 0); + + ref_rps_idx = st_rps_idx - (current->delta_idx_minus1 + 1); + ref = &sps->st_ref_pic_set[ref_rps_idx]; + num_delta_pocs = ref->num_negative_pics + ref->num_positive_pics; + + flag(delta_rps_sign); + ue(abs_delta_rps_minus1, 0, INT16_MAX); + delta_rps = (1 - 2 * current->delta_rps_sign) * + (current->abs_delta_rps_minus1 + 1); + + for (j = 0; j <= num_delta_pocs; j++) { + flag(used_by_curr_pic_flag[j]); + if (!current->used_by_curr_pic_flag[j]) + flag(use_delta_flag[j]); + else + infer(use_delta_flag[j], 1); + } + + // Since the stored form of an RPS here is actually the delta-step + // form used when inter_ref_pic_set_prediction_flag is not set, we + // need to reconstruct that here in order to be able to refer to + // the RPS later (which is required for parsing, because we don't + // even know what syntax elements appear without it). Therefore, + // this code takes the delta-step form of the reference set, turns + // it into the delta-array form, applies the prediction process of + // 7.4.8, converts the result back to the delta-step form, and + // stores that as the current set for future use. Note that the + // inferences here mean that writers using prediction will need + // to fill in the delta-step values correctly as well - since the + // whole RPS prediction process is somewhat overly sophisticated, + // this hopefully forms a useful check for them to ensure their + // predicted form actually matches what was intended rather than + // an onerous additional requirement. + + d_poc = 0; + for (i = 0; i < ref->num_negative_pics; i++) { + d_poc -= ref->delta_poc_s0_minus1[i] + 1; + ref_delta_poc_s0[i] = d_poc; + } + d_poc = 0; + for (i = 0; i < ref->num_positive_pics; i++) { + d_poc += ref->delta_poc_s1_minus1[i] + 1; + ref_delta_poc_s1[i] = d_poc; + } + + i = 0; + for (j = ref->num_positive_pics - 1; j >= 0; j--) { + d_poc = ref_delta_poc_s1[j] + delta_rps; + if (d_poc < 0 && current->use_delta_flag[ref->num_negative_pics + j]) { + delta_poc_s0[i] = d_poc; + used_by_curr_pic_s0[i++] = + current->used_by_curr_pic_flag[ref->num_negative_pics + j]; + } + } + if (delta_rps < 0 && current->use_delta_flag[num_delta_pocs]) { + delta_poc_s0[i] = delta_rps; + used_by_curr_pic_s0[i++] = + current->used_by_curr_pic_flag[num_delta_pocs]; + } + for (j = 0; j < ref->num_negative_pics; j++) { + d_poc = ref_delta_poc_s0[j] + delta_rps; + if (d_poc < 0 && current->use_delta_flag[j]) { + delta_poc_s0[i] = d_poc; + used_by_curr_pic_s0[i++] = current->used_by_curr_pic_flag[j]; + } + } + + infer(num_negative_pics, i); + for (i = 0; i < current->num_negative_pics; i++) { + infer(delta_poc_s0_minus1[i], + -(delta_poc_s0[i] - (i == 0 ? 0 : delta_poc_s0[i - 1])) - 1); + infer(used_by_curr_pic_s0_flag[i], used_by_curr_pic_s0[i]); + } + + i = 0; + for (j = ref->num_negative_pics - 1; j >= 0; j--) { + d_poc = ref_delta_poc_s0[j] + delta_rps; + if (d_poc > 0 && current->use_delta_flag[j]) { + delta_poc_s1[i] = d_poc; + used_by_curr_pic_s1[i++] = current->used_by_curr_pic_flag[j]; + } + } + if (delta_rps > 0 && current->use_delta_flag[num_delta_pocs]) { + delta_poc_s1[i] = delta_rps; + used_by_curr_pic_s1[i++] = + current->used_by_curr_pic_flag[num_delta_pocs]; + } + for (j = 0; j < ref->num_positive_pics; j++) { + d_poc = ref_delta_poc_s1[j] + delta_rps; + if (d_poc > 0 && current->use_delta_flag[ref->num_negative_pics + j]) { + delta_poc_s1[i] = d_poc; + used_by_curr_pic_s1[i++] = + current->used_by_curr_pic_flag[ref->num_negative_pics + j]; + } + } + + infer(num_positive_pics, i); + for (i = 0; i < current->num_positive_pics; i++) { + infer(delta_poc_s1_minus1[i], + delta_poc_s1[i] - (i == 0 ? 0 : delta_poc_s1[i - 1]) - 1); + infer(used_by_curr_pic_s1_flag[i], used_by_curr_pic_s1[i]); + } + + } else { + ue(num_negative_pics, 0, 15); + ue(num_positive_pics, 0, 15 - current->num_negative_pics); + + for (i = 0; i < current->num_negative_pics; i++) { + ue(delta_poc_s0_minus1[i], 0, INT16_MAX); + flag(used_by_curr_pic_s0_flag[i]); + } + + for (i = 0; i < current->num_positive_pics; i++) { + ue(delta_poc_s1_minus1[i], 0, INT16_MAX); + flag(used_by_curr_pic_s1_flag[i]); + } + } + + return 0; +} + +static int FUNC(scaling_list_data)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawScalingList *current) +{ + int sizeId, matrixId; + int err, n, i; + + for (sizeId = 0; sizeId < 4; sizeId++) { + for (matrixId = 0; matrixId < 6; matrixId += (sizeId == 3 ? 3 : 1)) { + flag(scaling_list_pred_mode_flag[sizeId][matrixId]); + if (!current->scaling_list_pred_mode_flag[sizeId][matrixId]) { + ue(scaling_list_pred_matrix_id_delta[sizeId][matrixId], + 0, sizeId == 3 ? matrixId / 3 : matrixId); + } else { + n = FFMIN(64, 1 << (4 + (sizeId << 1))); + if (sizeId > 1) + se(scaling_list_dc_coef_minus8[sizeId - 2][matrixId], -7, +247); + for (i = 0; i < n; i++) { + xse(scaling_list_delta_coeff, + current->scaling_list_delta_coeff[sizeId][matrixId][i], + -128, +127); + } + } + } + } + + return 0; +} + +static int FUNC(sps_range_extension)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawSPS *current) +{ + int err; + + flag(transform_skip_rotation_enabled_flag); + flag(transform_skip_context_enabled_flag); + flag(implicit_rdpcm_enabled_flag); + flag(explicit_rdpcm_enabled_flag); + flag(extended_precision_processing_flag); + flag(intra_smoothing_disabled_flag); + flag(high_precision_offsets_enabled_flag); + flag(persistent_rice_adaptation_enabled_flag); + flag(cabac_bypass_alignment_enabled_flag); + + return 0; +} + +static int FUNC(sps_scc_extension)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawSPS *current) +{ + int err, comp, i; + + flag(sps_curr_pic_ref_enabled_flag); + + flag(palette_mode_enabled_flag); + if (current->palette_mode_enabled_flag) { + ue(palette_max_size, 0, 64); + ue(delta_palette_max_predictor_size, 0, 128); + + flag(sps_palette_predictor_initializer_present_flag); + if (current->sps_palette_predictor_initializer_present_flag) { + ue(sps_num_palette_predictor_initializer_minus1, 0, 128); + for (comp = 0; comp < (current->chroma_format_idc ? 3 : 1); comp++) { + int bit_depth = comp == 0 ? current->bit_depth_luma_minus8 + 8 + : current->bit_depth_chroma_minus8 + 8; + for (i = 0; i <= current->sps_num_palette_predictor_initializer_minus1; i++) + u(bit_depth, sps_palette_predictor_initializers[comp][i], + 0, (1 << bit_depth) - 1); + } + } + } + + u(2, motion_vector_resolution_control_idc, 0, 2); + flag(intra_boundary_filtering_disable_flag); + + return 0; +} + +static int FUNC(sps)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawSPS *current) +{ + CodedBitstreamH265Context *h265 = ctx->priv_data; + const H265RawVPS *vps; + int err, i; + unsigned int min_cb_log2_size_y, ctb_log2_size_y, + min_cb_size_y, min_tb_log2_size_y; + + HEADER("Sequence Parameter Set"); + + CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, HEVC_NAL_SPS)); + + u(4, sps_video_parameter_set_id, 0, 15); + h265->active_vps = vps = h265->vps[current->sps_video_parameter_set_id]; + + u(3, sps_max_sub_layers_minus1, 0, HEVC_MAX_SUB_LAYERS - 1); + flag(sps_temporal_id_nesting_flag); + if (vps) { + if (vps->vps_max_sub_layers_minus1 > current->sps_max_sub_layers_minus1) { + av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid stream: " + "sps_max_sub_layers_minus1 (%d) must be less than or equal to " + "vps_max_sub_layers_minus1 (%d).\n", + vps->vps_max_sub_layers_minus1, + current->sps_max_sub_layers_minus1); + return AVERROR_INVALIDDATA; + } + if (vps->vps_temporal_id_nesting_flag && + !current->sps_temporal_id_nesting_flag) { + av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid stream: " + "sps_temporal_id_nesting_flag must be 1 if " + "vps_temporal_id_nesting_flag is 1.\n"); + return AVERROR_INVALIDDATA; + } + } + + CHECK(FUNC(profile_tier_level)(ctx, rw, ¤t->profile_tier_level, + 1, current->sps_max_sub_layers_minus1)); + + ue(sps_seq_parameter_set_id, 0, 15); + + ue(chroma_format_idc, 0, 3); + if (current->chroma_format_idc == 3) + flag(separate_colour_plane_flag); + else + infer(separate_colour_plane_flag, 0); + + ue(pic_width_in_luma_samples, 1, HEVC_MAX_WIDTH); + ue(pic_height_in_luma_samples, 1, HEVC_MAX_HEIGHT); + + flag(conformance_window_flag); + if (current->conformance_window_flag) { + ue(conf_win_left_offset, 0, current->pic_width_in_luma_samples); + ue(conf_win_right_offset, 0, current->pic_width_in_luma_samples); + ue(conf_win_top_offset, 0, current->pic_height_in_luma_samples); + ue(conf_win_bottom_offset, 0, current->pic_height_in_luma_samples); + } else { + infer(conf_win_left_offset, 0); + infer(conf_win_right_offset, 0); + infer(conf_win_top_offset, 0); + infer(conf_win_bottom_offset, 0); + } + + ue(bit_depth_luma_minus8, 0, 8); + ue(bit_depth_chroma_minus8, 0, 8); + + ue(log2_max_pic_order_cnt_lsb_minus4, 0, 12); + + flag(sps_sub_layer_ordering_info_present_flag); + for (i = (current->sps_sub_layer_ordering_info_present_flag ? + 0 : current->sps_max_sub_layers_minus1); + i <= current->sps_max_sub_layers_minus1; i++) { + ue(sps_max_dec_pic_buffering_minus1[i], 0, HEVC_MAX_DPB_SIZE - 1); + ue(sps_max_num_reorder_pics[i], 0, current->sps_max_dec_pic_buffering_minus1[i]); + ue(sps_max_latency_increase_plus1[i], 0, UINT32_MAX - 1); + } + if (!current->sps_sub_layer_ordering_info_present_flag) { + for (i = 0; i < current->sps_max_sub_layers_minus1; i++) { + infer(sps_max_dec_pic_buffering_minus1[i], + current->sps_max_dec_pic_buffering_minus1[current->sps_max_sub_layers_minus1]); + infer(sps_max_num_reorder_pics[i], + current->sps_max_num_reorder_pics[current->sps_max_sub_layers_minus1]); + infer(sps_max_latency_increase_plus1[i], + current->sps_max_latency_increase_plus1[current->sps_max_sub_layers_minus1]); + } + } + + ue(log2_min_luma_coding_block_size_minus3, 0, 3); + min_cb_log2_size_y = current->log2_min_luma_coding_block_size_minus3 + 3; + + ue(log2_diff_max_min_luma_coding_block_size, 0, 3); + ctb_log2_size_y = min_cb_log2_size_y + + current->log2_diff_max_min_luma_coding_block_size; + + min_cb_size_y = 1 << min_cb_log2_size_y; + if (current->pic_width_in_luma_samples % min_cb_size_y || + current->pic_height_in_luma_samples % min_cb_size_y) { + av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid dimensions: %ux%u not divisible " + "by MinCbSizeY = %u.\n", current->pic_width_in_luma_samples, + current->pic_height_in_luma_samples, min_cb_size_y); + return AVERROR_INVALIDDATA; + } + + ue(log2_min_luma_transform_block_size_minus2, 0, min_cb_log2_size_y - 3); + min_tb_log2_size_y = current->log2_min_luma_transform_block_size_minus2 + 2; + + ue(log2_diff_max_min_luma_transform_block_size, + 0, FFMIN(ctb_log2_size_y, 5) - min_tb_log2_size_y); + + ue(max_transform_hierarchy_depth_inter, + 0, ctb_log2_size_y - min_tb_log2_size_y); + ue(max_transform_hierarchy_depth_intra, + 0, ctb_log2_size_y - min_tb_log2_size_y); + + flag(scaling_list_enabled_flag); + if (current->scaling_list_enabled_flag) { + flag(sps_scaling_list_data_present_flag); + if (current->sps_scaling_list_data_present_flag) + CHECK(FUNC(scaling_list_data)(ctx, rw, ¤t->scaling_list)); + } else { + infer(sps_scaling_list_data_present_flag, 0); + } + + flag(amp_enabled_flag); + flag(sample_adaptive_offset_enabled_flag); + + flag(pcm_enabled_flag); + if (current->pcm_enabled_flag) { + u(4, pcm_sample_bit_depth_luma_minus1, + 0, current->bit_depth_luma_minus8 + 8 - 1); + u(4, pcm_sample_bit_depth_chroma_minus1, + 0, current->bit_depth_chroma_minus8 + 8 - 1); + + ue(log2_min_pcm_luma_coding_block_size_minus3, + FFMIN(min_cb_log2_size_y, 5) - 3, FFMIN(ctb_log2_size_y, 5) - 3); + ue(log2_diff_max_min_pcm_luma_coding_block_size, + 0, FFMIN(ctb_log2_size_y, 5) - (current->log2_min_pcm_luma_coding_block_size_minus3 + 3)); + + flag(pcm_loop_filter_disabled_flag); + } + + ue(num_short_term_ref_pic_sets, 0, HEVC_MAX_SHORT_TERM_REF_PIC_SETS); + for (i = 0; i < current->num_short_term_ref_pic_sets; i++) + CHECK(FUNC(st_ref_pic_set)(ctx, rw, ¤t->st_ref_pic_set[i], i, current)); + + flag(long_term_ref_pics_present_flag); + if (current->long_term_ref_pics_present_flag) { + ue(num_long_term_ref_pics_sps, 0, HEVC_MAX_LONG_TERM_REF_PICS); + for (i = 0; i < current->num_long_term_ref_pics_sps; i++) { + u(current->log2_max_pic_order_cnt_lsb_minus4 + 4, + lt_ref_pic_poc_lsb_sps[i], + 0, (1 << (current->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1); + flag(used_by_curr_pic_lt_sps_flag[i]); + } + } + + flag(sps_temporal_mvp_enabled_flag); + flag(strong_intra_smoothing_enabled_flag); + + flag(vui_parameters_present_flag); + if (current->vui_parameters_present_flag) + CHECK(FUNC(vui_parameters)(ctx, rw, ¤t->vui, current)); + + flag(sps_extension_present_flag); + if (current->sps_extension_present_flag) { + flag(sps_range_extension_flag); + flag(sps_multilayer_extension_flag); + flag(sps_3d_extension_flag); + flag(sps_scc_extension_flag); + u(4, sps_extension_4bits, 0, (1 << 4) - 1); + } + + if (current->sps_range_extension_flag) + CHECK(FUNC(sps_range_extension)(ctx, rw, current)); + if (current->sps_multilayer_extension_flag) + return AVERROR_PATCHWELCOME; + if (current->sps_3d_extension_flag) + return AVERROR_PATCHWELCOME; + if (current->sps_scc_extension_flag) + CHECK(FUNC(sps_scc_extension)(ctx, rw, current)); + if (current->sps_extension_4bits) + CHECK(FUNC(extension_data)(ctx, rw, ¤t->extension_data)); + + CHECK(FUNC(rbsp_trailing_bits)(ctx, rw)); + + return 0; +} + +static int FUNC(pps_range_extension)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawPPS *current) +{ + CodedBitstreamH265Context *h265 = ctx->priv_data; + const H265RawSPS *sps = h265->active_sps; + int err, i; + + if (current->transform_skip_enabled_flag) + ue(log2_max_transform_skip_block_size_minus2, 0, 4); + flag(cross_component_prediction_enabled_flag); + + flag(chroma_qp_offset_list_enabled_flag); + if (current->chroma_qp_offset_list_enabled_flag) { + ue(diff_cu_chroma_qp_offset_depth, + 0, sps->log2_diff_max_min_luma_coding_block_size); + ue(chroma_qp_offset_list_len_minus1, 0, 5); + for (i = 0; i <= current->chroma_qp_offset_list_len_minus1; i++) { + se(cb_qp_offset_list[i], -12, +12); + se(cr_qp_offset_list[i], -12, +12); + } + } + + ue(log2_sao_offset_scale_luma, 0, FFMAX(0, sps->bit_depth_luma_minus8 - 2)); + ue(log2_sao_offset_scale_chroma, 0, FFMAX(0, sps->bit_depth_chroma_minus8 - 2)); + + return 0; +} + +static int FUNC(pps_scc_extension)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawPPS *current) +{ + int err, comp, i; + + flag(pps_curr_pic_ref_enabled_flag); + + flag(residual_adaptive_colour_transform_enabled_flag); + if (current->residual_adaptive_colour_transform_enabled_flag) { + flag(pps_slice_act_qp_offsets_present_flag); + se(pps_act_y_qp_offset_plus5, -7, +17); + se(pps_act_cb_qp_offset_plus5, -7, +17); + se(pps_act_cr_qp_offset_plus3, -9, +15); + } else { + infer(pps_slice_act_qp_offsets_present_flag, 0); + infer(pps_act_y_qp_offset_plus5, 0); + infer(pps_act_cb_qp_offset_plus5, 0); + infer(pps_act_cr_qp_offset_plus3, 0); + } + + flag(pps_palette_predictor_initializer_present_flag); + if (current->pps_palette_predictor_initializer_present_flag) { + ue(pps_num_palette_predictor_initializer, 0, 128); + if (current->pps_num_palette_predictor_initializer > 0) { + flag(monochrome_palette_flag); + ue(luma_bit_depth_entry_minus8, 0, 8); + if (!current->monochrome_palette_flag) + ue(chroma_bit_depth_entry_minus8, 0, 8); + for (comp = 0; comp < (current->monochrome_palette_flag ? 1 : 3); comp++) { + int bit_depth = comp == 0 ? current->luma_bit_depth_entry_minus8 + 8 + : current->chroma_bit_depth_entry_minus8 + 8; + for (i = 0; i < current->pps_num_palette_predictor_initializer; i++) + u(bit_depth, pps_palette_predictor_initializers[comp][i], + 0, (1 << bit_depth) - 1); + } + } + } + + return 0; +} + +static int FUNC(pps)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawPPS *current) +{ + CodedBitstreamH265Context *h265 = ctx->priv_data; + const H265RawSPS *sps; + int err, i; + + HEADER("Picture Parameter Set"); + + CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, HEVC_NAL_PPS)); + + ue(pps_pic_parameter_set_id, 0, 63); + ue(pps_seq_parameter_set_id, 0, 15); + sps = h265->sps[current->pps_seq_parameter_set_id]; + if (!sps) { + av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n", + current->pps_seq_parameter_set_id); + return AVERROR_INVALIDDATA; + } + h265->active_sps = sps; + + flag(dependent_slice_segments_enabled_flag); + flag(output_flag_present_flag); + u(3, num_extra_slice_header_bits, 0, 7); + flag(sign_data_hiding_enabled_flag); + flag(cabac_init_present_flag); + + ue(num_ref_idx_l0_default_active_minus1, 0, 14); + ue(num_ref_idx_l1_default_active_minus1, 0, 14); + + se(init_qp_minus26, -(26 + 6 * sps->bit_depth_luma_minus8), +25); + + flag(constrained_intra_pred_flag); + flag(transform_skip_enabled_flag); + flag(cu_qp_delta_enabled_flag); + if (current->cu_qp_delta_enabled_flag) + ue(diff_cu_qp_delta_depth, + 0, sps->log2_diff_max_min_luma_coding_block_size); + else + infer(diff_cu_qp_delta_depth, 0); + + se(pps_cb_qp_offset, -12, +12); + se(pps_cr_qp_offset, -12, +12); + flag(pps_slice_chroma_qp_offsets_present_flag); + + flag(weighted_pred_flag); + flag(weighted_bipred_flag); + + flag(transquant_bypass_enabled_flag); + flag(tiles_enabled_flag); + flag(entropy_coding_sync_enabled_flag); + + if (current->tiles_enabled_flag) { + ue(num_tile_columns_minus1, 0, HEVC_MAX_TILE_COLUMNS); + ue(num_tile_rows_minus1, 0, HEVC_MAX_TILE_ROWS); + flag(uniform_spacing_flag); + if (!current->uniform_spacing_flag) { + for (i = 0; i < current->num_tile_columns_minus1; i++) + ue(column_width_minus1[i], 0, sps->pic_width_in_luma_samples); + for (i = 0; i < current->num_tile_rows_minus1; i++) + ue(row_height_minus1[i], 0, sps->pic_height_in_luma_samples); + } + flag(loop_filter_across_tiles_enabled_flag); + } else { + infer(num_tile_columns_minus1, 0); + infer(num_tile_rows_minus1, 0); + } + + flag(pps_loop_filter_across_slices_enabled_flag); + flag(deblocking_filter_control_present_flag); + if (current->deblocking_filter_control_present_flag) { + flag(deblocking_filter_override_enabled_flag); + flag(pps_deblocking_filter_disabled_flag); + if (!current->pps_deblocking_filter_disabled_flag) { + se(pps_beta_offset_div2, -6, +6); + se(pps_tc_offset_div2, -6, +6); + } else { + infer(pps_beta_offset_div2, 0); + infer(pps_tc_offset_div2, 0); + } + } else { + infer(deblocking_filter_override_enabled_flag, 0); + infer(pps_deblocking_filter_disabled_flag, 0); + infer(pps_beta_offset_div2, 0); + infer(pps_tc_offset_div2, 0); + } + + flag(pps_scaling_list_data_present_flag); + if (current->pps_scaling_list_data_present_flag) + CHECK(FUNC(scaling_list_data)(ctx, rw, ¤t->scaling_list)); + + flag(lists_modification_present_flag); + + ue(log2_parallel_merge_level_minus2, + 0, (sps->log2_min_luma_coding_block_size_minus3 + 3 + + sps->log2_diff_max_min_luma_coding_block_size - 2)); + + flag(slice_segment_header_extension_present_flag); + + flag(pps_extension_present_flag); + if (current->pps_extension_present_flag) { + flag(pps_range_extension_flag); + flag(pps_multilayer_extension_flag); + flag(pps_3d_extension_flag); + flag(pps_scc_extension_flag); + u(4, pps_extension_4bits, 0, (1 << 4) - 1); + } + if (current->pps_range_extension_flag) + CHECK(FUNC(pps_range_extension)(ctx, rw, current)); + if (current->pps_multilayer_extension_flag) + return AVERROR_PATCHWELCOME; + if (current->pps_3d_extension_flag) + return AVERROR_PATCHWELCOME; + if (current->pps_scc_extension_flag) + CHECK(FUNC(pps_scc_extension)(ctx, rw, current)); + if (current->pps_extension_4bits) + CHECK(FUNC(extension_data)(ctx, rw, ¤t->extension_data)); + + CHECK(FUNC(rbsp_trailing_bits)(ctx, rw)); + + return 0; +} + +static int FUNC(aud)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawAUD *current) +{ + int err; + + HEADER("Access Unit Delimiter"); + + CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, HEVC_NAL_AUD)); + + u(3, pic_type, 0, 2); + + CHECK(FUNC(rbsp_trailing_bits)(ctx, rw)); + + return 0; +} + +static int FUNC(ref_pic_lists_modification)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawSliceHeader *current, + unsigned int num_pic_total_curr) +{ + unsigned int entry_size; + int err, i; + + entry_size = av_log2(num_pic_total_curr - 1) + 1; + + flag(ref_pic_list_modification_flag_l0); + if (current->ref_pic_list_modification_flag_l0) { + for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) + u(entry_size, list_entry_l0[i], 0, num_pic_total_curr - 1); + } + + if (current->slice_type == HEVC_SLICE_B) { + flag(ref_pic_list_modification_flag_l1); + if (current->ref_pic_list_modification_flag_l1) { + for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) + u(entry_size, list_entry_l1[i], 0, num_pic_total_curr - 1); + } + } + + return 0; +} + +static int FUNC(pred_weight_table)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawSliceHeader *current) +{ + CodedBitstreamH265Context *h265 = ctx->priv_data; + const H265RawSPS *sps = h265->active_sps; + int err, i, j; + int chroma = !sps->separate_colour_plane_flag && + sps->chroma_format_idc != 0; + + ue(luma_log2_weight_denom, 0, 7); + if (chroma) + se(delta_chroma_log2_weight_denom, -7, 7); + else + infer(delta_chroma_log2_weight_denom, 0); + + for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) { + if (1 /* is not same POC and same layer_id */) + flag(luma_weight_l0_flag[i]); + else + infer(luma_weight_l0_flag[i], 0); + } + if (chroma) { + for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) { + if (1 /* is not same POC and same layer_id */) + flag(chroma_weight_l0_flag[i]); + else + infer(chroma_weight_l0_flag[i], 0); + } + } + + for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) { + if (current->luma_weight_l0_flag[i]) { + se(delta_luma_weight_l0[i], -128, +127); + se(luma_offset_l0[i], + -(1 << (sps->bit_depth_luma_minus8 + 8 - 1)), + +(1 << (sps->bit_depth_luma_minus8 + 8 - 1) - 1)); + } else { + infer(delta_luma_weight_l0[i], 0); + infer(luma_offset_l0[i], 0); + } + if (current->chroma_weight_l0_flag[i]) { + for (j = 0; j < 2; j++) { + se(delta_chroma_weight_l0[i][j], -128, +127); + se(chroma_offset_l0[i][j], + -(4 << (sps->bit_depth_chroma_minus8 + 8 - 1)), + +(4 << (sps->bit_depth_chroma_minus8 + 8 - 1) - 1)); + } + } else { + for (j = 0; j < 2; j++) { + infer(delta_chroma_weight_l0[i][j], 0); + infer(chroma_offset_l0[i][j], 0); + } + } + } + + if (current->slice_type == HEVC_SLICE_B) { + for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) { + if (1 /* RefPicList1[i] is not CurrPic, nor is it in a different layer */) + flag(luma_weight_l1_flag[i]); + else + infer(luma_weight_l1_flag[i], 0); + } + if (chroma) { + for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) { + if (1 /* RefPicList1[i] is not CurrPic, nor is it in a different layer */) + flag(chroma_weight_l1_flag[i]); + else + infer(chroma_weight_l1_flag[i], 0); + } + } + + for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) { + if (current->luma_weight_l1_flag[i]) { + se(delta_luma_weight_l1[i], -128, +127); + se(luma_offset_l1[i], + - 1 << (sps->bit_depth_luma_minus8 + 8 - 1), + + 1 << (sps->bit_depth_luma_minus8 + 8 - 1) - 1); + } else { + infer(delta_luma_weight_l1[i], 0); + infer(luma_offset_l1[i], 0); + } + if (current->chroma_weight_l1_flag[i]) { + for (j = 0; j < 2; j++) { + se(delta_chroma_weight_l1[i][j], -128, +127); + se(chroma_offset_l1[i][j], + - 4 << (sps->bit_depth_chroma_minus8 + 8 - 1), + + 4 << (sps->bit_depth_chroma_minus8 + 8 - 1) - 1); + } + } else { + for (j = 0; j < 2; j++) { + infer(delta_chroma_weight_l1[i][j], 0); + infer(chroma_offset_l1[i][j], 0); + } + } + } + } + + return 0; +} + +static int FUNC(slice_segment_header)(CodedBitstreamContext *ctx, RWContext *rw, + H265RawSliceHeader *current) +{ + CodedBitstreamH265Context *h265 = ctx->priv_data; + const H265RawSPS *sps; + const H265RawPPS *pps; + unsigned int min_cb_log2_size_y, ctb_log2_size_y, ctb_size_y; + unsigned int pic_width_in_ctbs_y, pic_height_in_ctbs_y, pic_size_in_ctbs_y; + unsigned int num_pic_total_curr = 0; + int err, i; + + HEADER("Slice Segment Header"); + + CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, -1)); + + flag(first_slice_segment_in_pic_flag); + + if (current->nal_unit_header.nal_unit_type >= HEVC_NAL_BLA_W_LP && + current->nal_unit_header.nal_unit_type <= HEVC_NAL_IRAP_VCL23) + flag(no_output_of_prior_pics_flag); + + ue(slice_pic_parameter_set_id, 0, 63); + + pps = h265->pps[current->slice_pic_parameter_set_id]; + if (!pps) { + av_log(ctx->log_ctx, AV_LOG_ERROR, "PPS id %d not available.\n", + current->slice_pic_parameter_set_id); + return AVERROR_INVALIDDATA; + } + h265->active_pps = pps; + + sps = h265->sps[pps->pps_seq_parameter_set_id]; + if (!sps) { + av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n", + pps->pps_seq_parameter_set_id); + return AVERROR_INVALIDDATA; + } + h265->active_sps = sps; + + min_cb_log2_size_y = sps->log2_min_luma_coding_block_size_minus3 + 3; + ctb_log2_size_y = min_cb_log2_size_y + sps->log2_diff_max_min_luma_coding_block_size; + ctb_size_y = 1 << ctb_log2_size_y; + pic_width_in_ctbs_y = + (sps->pic_width_in_luma_samples + ctb_size_y - 1) / ctb_size_y; + pic_height_in_ctbs_y = + (sps->pic_height_in_luma_samples + ctb_size_y - 1) / ctb_size_y; + pic_size_in_ctbs_y = pic_width_in_ctbs_y * pic_height_in_ctbs_y; + + if (!current->first_slice_segment_in_pic_flag) { + unsigned int address_size = av_log2(pic_size_in_ctbs_y - 1) + 1; + if (pps->dependent_slice_segments_enabled_flag) + flag(dependent_slice_segment_flag); + else + infer(dependent_slice_segment_flag, 0); + u(address_size, slice_segment_address, 0, pic_size_in_ctbs_y - 1); + } else { + infer(dependent_slice_segment_flag, 0); + } + + if (!current->dependent_slice_segment_flag) { + for (i = 0; i < pps->num_extra_slice_header_bits; i++) + flag(slice_reserved_flag[i]); + + ue(slice_type, 0, 2); + + if (pps->output_flag_present_flag) + flag(pic_output_flag); + + if (sps->separate_colour_plane_flag) + u(2, colour_plane_id, 0, 2); + + if (current->nal_unit_header.nal_unit_type != HEVC_NAL_IDR_W_RADL && + current->nal_unit_header.nal_unit_type != HEVC_NAL_IDR_N_LP) { + const H265RawSTRefPicSet *rps; + + u(sps->log2_max_pic_order_cnt_lsb_minus4 + 4, slice_pic_order_cnt_lsb, + 0, (1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1); + + flag(short_term_ref_pic_set_sps_flag); + if (!current->short_term_ref_pic_set_sps_flag) { + CHECK(FUNC(st_ref_pic_set)(ctx, rw, ¤t->short_term_ref_pic_set, + sps->num_short_term_ref_pic_sets, sps)); + rps = ¤t->short_term_ref_pic_set; + } else if (sps->num_short_term_ref_pic_sets > 1) { + unsigned int idx_size = av_log2(sps->num_short_term_ref_pic_sets - 1) + 1; + u(idx_size, short_term_ref_pic_set_idx, + 0, sps->num_short_term_ref_pic_sets - 1); + rps = &sps->st_ref_pic_set[current->short_term_ref_pic_set_idx]; + } else { + infer(short_term_ref_pic_set_idx, 0); + rps = &sps->st_ref_pic_set[0]; + } + + num_pic_total_curr = 0; + for (i = 0; i < rps->num_negative_pics; i++) + if (rps->used_by_curr_pic_s0_flag[i]) + ++num_pic_total_curr; + for (i = 0; i < rps->num_positive_pics; i++) + if (rps->used_by_curr_pic_s1_flag[i]) + ++num_pic_total_curr; + + if (sps->long_term_ref_pics_present_flag) { + unsigned int idx_size; + + if (sps->num_long_term_ref_pics_sps > 0) { + ue(num_long_term_sps, 0, sps->num_long_term_ref_pics_sps); + idx_size = av_log2(sps->num_long_term_ref_pics_sps - 1) + 1; + } else { + infer(num_long_term_sps, 0); + idx_size = 0; + } + ue(num_long_term_pics, 0, HEVC_MAX_LONG_TERM_REF_PICS); + + for (i = 0; i < current->num_long_term_sps + + current->num_long_term_pics; i++) { + if (i < current->num_long_term_sps) { + if (sps->num_long_term_ref_pics_sps > 1) + u(idx_size, lt_idx_sps[i], + 0, sps->num_long_term_ref_pics_sps - 1); + if (sps->used_by_curr_pic_lt_sps_flag[current->lt_idx_sps[i]]) + ++num_pic_total_curr; + } else { + u(sps->log2_max_pic_order_cnt_lsb_minus4 + 4, poc_lsb_lt[i], + 0, (1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1); + flag(used_by_curr_pic_lt_flag[i]); + if (current->used_by_curr_pic_lt_flag[i]) + ++num_pic_total_curr; + } + flag(delta_poc_msb_present_flag[i]); + if (current->delta_poc_msb_present_flag[i]) + ue(delta_poc_msb_cycle_lt[i], 0, UINT32_MAX - 1); + else + infer(delta_poc_msb_cycle_lt[i], 0); + } + } + + if (sps->sps_temporal_mvp_enabled_flag) + flag(slice_temporal_mvp_enabled_flag); + else + infer(slice_temporal_mvp_enabled_flag, 0); + + if (pps->pps_curr_pic_ref_enabled_flag) + ++num_pic_total_curr; + } + + if (sps->sample_adaptive_offset_enabled_flag) { + flag(slice_sao_luma_flag); + if (!sps->separate_colour_plane_flag && sps->chroma_format_idc != 0) + flag(slice_sao_chroma_flag); + else + infer(slice_sao_chroma_flag, 0); + } else { + infer(slice_sao_luma_flag, 0); + infer(slice_sao_chroma_flag, 0); + } + + if (current->slice_type == HEVC_SLICE_P || + current->slice_type == HEVC_SLICE_B) { + flag(num_ref_idx_active_override_flag); + if (current->num_ref_idx_active_override_flag) { + ue(num_ref_idx_l0_active_minus1, 0, 14); + if (current->slice_type == HEVC_SLICE_B) + ue(num_ref_idx_l1_active_minus1, 0, 14); + else + infer(num_ref_idx_l1_active_minus1, pps->num_ref_idx_l1_default_active_minus1); + } else { + infer(num_ref_idx_l0_active_minus1, pps->num_ref_idx_l0_default_active_minus1); + infer(num_ref_idx_l1_active_minus1, pps->num_ref_idx_l1_default_active_minus1); + } + + if (pps->lists_modification_present_flag && num_pic_total_curr > 1) + CHECK(FUNC(ref_pic_lists_modification)(ctx, rw, current, + num_pic_total_curr)); + + if (current->slice_type == HEVC_SLICE_B) + flag(mvd_l1_zero_flag); + if (pps->cabac_init_present_flag) + flag(cabac_init_flag); + else + infer(cabac_init_flag, 0); + if (current->slice_temporal_mvp_enabled_flag) { + if (current->slice_type == HEVC_SLICE_B) + flag(collocated_from_l0_flag); + else + infer(collocated_from_l0_flag, 1); + if (current->collocated_from_l0_flag) { + if (current->num_ref_idx_l0_active_minus1 > 0) + ue(collocated_ref_idx, 0, current->num_ref_idx_l0_active_minus1); + else + infer(collocated_ref_idx, 0); + } else { + if (current->num_ref_idx_l1_active_minus1 > 0) + ue(collocated_ref_idx, 0, current->num_ref_idx_l1_active_minus1); + else + infer(collocated_ref_idx, 0); + } + } + + if ((pps->weighted_pred_flag && current->slice_type == HEVC_SLICE_P) || + (pps->weighted_bipred_flag && current->slice_type == HEVC_SLICE_B)) + CHECK(FUNC(pred_weight_table)(ctx, rw, current)); + + ue(five_minus_max_num_merge_cand, 0, 4); + if (sps->motion_vector_resolution_control_idc == 2) + flag(use_integer_mv_flag); + else + infer(use_integer_mv_flag, sps->motion_vector_resolution_control_idc); + } + + se(slice_qp_delta, + - 6 * sps->bit_depth_luma_minus8 - (pps->init_qp_minus26 + 26), + + 51 - (pps->init_qp_minus26 + 26)); + if (pps->pps_slice_chroma_qp_offsets_present_flag) { + se(slice_cb_qp_offset, -12, +12); + se(slice_cr_qp_offset, -12, +12); + } else { + infer(slice_cb_qp_offset, 0); + infer(slice_cr_qp_offset, 0); + } + if (pps->pps_slice_act_qp_offsets_present_flag) { + se(slice_act_y_qp_offset, + -12 - (pps->pps_act_y_qp_offset_plus5 - 5), + +12 - (pps->pps_act_y_qp_offset_plus5 - 5)); + se(slice_act_cb_qp_offset, + -12 - (pps->pps_act_cb_qp_offset_plus5 - 5), + +12 - (pps->pps_act_cb_qp_offset_plus5 - 5)); + se(slice_act_cr_qp_offset, + -12 - (pps->pps_act_cr_qp_offset_plus3 - 3), + +12 - (pps->pps_act_cr_qp_offset_plus3 - 3)); + } else { + infer(slice_act_y_qp_offset, 0); + infer(slice_act_cb_qp_offset, 0); + infer(slice_act_cr_qp_offset, 0); + } + if (pps->chroma_qp_offset_list_enabled_flag) + flag(cu_chroma_qp_offset_enabled_flag); + else + infer(cu_chroma_qp_offset_enabled_flag, 0); + + if (pps->deblocking_filter_override_enabled_flag) + flag(deblocking_filter_override_flag); + else + infer(deblocking_filter_override_flag, 0); + if (current->deblocking_filter_override_flag) { + flag(slice_deblocking_filter_disabled_flag); + if (!current->slice_deblocking_filter_disabled_flag) { + se(slice_beta_offset_div2, -6, +6); + se(slice_tc_offset_div2, -6, +6); + } else { + infer(slice_beta_offset_div2, pps->pps_beta_offset_div2); + infer(slice_tc_offset_div2, pps->pps_tc_offset_div2); + } + } else { + infer(slice_deblocking_filter_disabled_flag, + pps->pps_deblocking_filter_disabled_flag); + infer(slice_beta_offset_div2, pps->pps_beta_offset_div2); + infer(slice_tc_offset_div2, pps->pps_tc_offset_div2); + } + if (pps->pps_loop_filter_across_slices_enabled_flag && + (current->slice_sao_luma_flag || current->slice_sao_chroma_flag || + !current->slice_deblocking_filter_disabled_flag)) + flag(slice_loop_filter_across_slices_enabled_flag); + else + infer(slice_loop_filter_across_slices_enabled_flag, + pps->pps_loop_filter_across_slices_enabled_flag); + } + + if (pps->tiles_enabled_flag || pps->entropy_coding_sync_enabled_flag) { + unsigned int num_entry_point_offsets_limit; + if (!pps->tiles_enabled_flag && pps->entropy_coding_sync_enabled_flag) + num_entry_point_offsets_limit = pic_height_in_ctbs_y - 1; + else if (pps->tiles_enabled_flag && !pps->entropy_coding_sync_enabled_flag) + num_entry_point_offsets_limit = + (pps->num_tile_columns_minus1 + 1) * (pps->num_tile_rows_minus1 + 1); + else + num_entry_point_offsets_limit = + (pps->num_tile_columns_minus1 + 1) * pic_height_in_ctbs_y - 1; + ue(num_entry_point_offsets, 0, num_entry_point_offsets_limit); + + if (current->num_entry_point_offsets > HEVC_MAX_ENTRY_POINT_OFFSETS) { + av_log(ctx->log_ctx, AV_LOG_ERROR, "Too many entry points: " + "%"PRIu16".\n", current->num_entry_point_offsets); + return AVERROR_PATCHWELCOME; + } + + if (current->num_entry_point_offsets > 0) { + ue(offset_len_minus1, 0, 31); + for (i = 0; i < current->num_entry_point_offsets; i++) + u(current->offset_len_minus1 + 1, entry_point_offset_minus1[i], + 0, (1 << (current->offset_len_minus1 + 1)) - 1); + } + } + + if (pps->slice_segment_header_extension_present_flag) { + ue(slice_segment_header_extension_length, 0, 256); + for (i = 0; i < current->slice_segment_header_extension_length; i++) + u(8, slice_segment_header_extension_data_byte[i], 0x00, 0xff); + } + + CHECK(FUNC(byte_alignment)(ctx, rw)); + + return 0; +} diff --git a/libavcodec/cbs_internal.h b/libavcodec/cbs_internal.h index e87a43970f..0457f4ab9e 100644 --- a/libavcodec/cbs_internal.h +++ b/libavcodec/cbs_internal.h @@ -81,6 +81,7 @@ int ff_cbs_write_unsigned(CodedBitstreamContext *ctx, PutBitContext *pbc, extern const CodedBitstreamType ff_cbs_type_h264; +extern const CodedBitstreamType ff_cbs_type_h265; #endif /* AVCODEC_CBS_INTERNAL_H */ |