[FFmpeg-cvslog] lavc: Add coded bitstream read/write support for H.265
Mark Thompson
git at videolan.org
Tue Oct 17 22:57:12 EEST 2017
ffmpeg | branch: master | Mark Thompson <sw at jkqxz.net> | Sun May 14 16:32:00 2017 +0100| [9b0c7aa0e446eceec96ba8f4009e004fad29fba3] | committer: Mark Thompson
lavc: Add coded bitstream read/write support for H.265
(cherry picked from commit 867381b8b51fa21fa2b8f071f508f3d39cc9c1f0)
(cherry picked from commit f763489364416bb6866adc4f4a96012dd2ca1bd0)
(cherry picked from commit 067a9ddeb8feff1f724856f0054930c55219f76b)
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9b0c7aa0e446eceec96ba8f4009e004fad29fba3
---
configure | 2 +
libavcodec/Makefile | 1 +
libavcodec/cbs.c | 3 +
libavcodec/cbs.h | 1 +
libavcodec/cbs_h2645.c | 413 ++++++++-
libavcodec/cbs_h265.h | 537 ++++++++++++
libavcodec/cbs_h265_syntax_template.c | 1503 +++++++++++++++++++++++++++++++++
libavcodec/cbs_internal.h | 1 +
8 files changed, 2458 insertions(+), 3 deletions(-)
diff --git a/configure b/configure
index 07c25e3dfa..e5bfbaabf2 100755
--- a/configure
+++ b/configure
@@ -2152,6 +2152,7 @@ CONFIG_EXTRA="
cabac
cbs
cbs_h264
+ cbs_h265
dirac_parse
dvprofile
exif
@@ -2406,6 +2407,7 @@ threads_if_any="$THREADS_LIST"
# subsystems
cbs_h264_select="cbs golomb"
+cbs_h265_select="cbs golomb"
dct_select="rdft"
dirac_parse_select="golomb"
error_resilience_select="me_cmp"
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 245a44c7d5..39b7dd1e2f 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -61,6 +61,7 @@ OBJS-$(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-$(CONFIG_CRYSTALHD) += crystalhd.o
OBJS-$(CONFIG_DCT) += dct.o dct32_fixed.o dct32_float.o
OBJS-$(CONFIG_ERROR_RESILIENCE) += error_resilience.o
diff --git a/libavcodec/cbs.c b/libavcodec/cbs.c
index f489d9806f..d7eb3033c4 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_ptr,
diff --git a/libavcodec/cbs.h b/libavcodec/cbs.h
index a64430667b..a367fd0bf6 100644
--- a/libavcodec/cbs.h
+++ b/libavcodec/cbs.h
@@ -44,6 +44,7 @@ struct CodedBitstreamType;
* The codec-specific type of a bitstream unit.
*
* H.264 / AVC: nal_unit_type
+ * H.265 / HEVC: nal_unit_type
*/
typedef uint32_t CodedBitstreamUnitType;
diff --git a/libavcodec/cbs_h2645.c b/libavcodec/cbs_h2645.c
index f03fd3ce72..bd2b5cbbf2 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, GetBitContext *gbc,
@@ -235,6 +237,7 @@ 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
@@ -297,6 +300,10 @@ static int cbs_h2645_read_more_rbsp_data(GetBitContext *gbc)
#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
@@ -366,6 +373,10 @@ static int cbs_h2645_read_more_rbsp_data(GetBitContext *gbc)
#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
@@ -426,6 +437,40 @@ 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)
@@ -547,6 +592,58 @@ 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, 1);
+ 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.
@@ -587,6 +684,9 @@ 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)
@@ -738,6 +838,153 @@ static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx,
return 0;
}
+static int cbs_h265_read_nal_unit(CodedBitstreamContext *ctx,
+ CodedBitstreamUnit *unit)
+{
+ GetBitContext gbc;
+ int err;
+
+ err = init_get_bits(&gbc, 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, &gbc, 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, &gbc, 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, &gbc, 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, &gbc, &slice->header);
+ if (err < 0) {
+ av_free(slice);
+ return err;
+ }
+
+ pos = get_bits_count(&gbc);
+ 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 +
+ AV_INPUT_BUFFER_PADDING_SIZE);
+ if (!slice->data) {
+ av_free(slice);
+ return AVERROR(ENOMEM);
+ }
+ memcpy(slice->data,
+ unit->data + pos / 8, slice->data_size);
+ memset(slice->data + slice->data_size, 0,
+ AV_INPUT_BUFFER_PADDING_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, &gbc, 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)
@@ -850,6 +1097,127 @@ 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;
+ GetBitContext gbc;
+ 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);
+
+ init_get_bits(&gbc, slice->data, slice->data_size * 8);
+ skip_bits_long(&gbc, slice->data_bit_start);
+
+ // Copy in two-byte blocks, but stop before copying the
+ // rbsp_stop_one_bit in the final byte.
+ while (get_bits_left(&gbc) > 23)
+ put_bits(pbc, 16, get_bits(&gbc, 16));
+
+ bits_left = get_bits_left(&gbc);
+ end = get_bits(&gbc, 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 %"PRIu32".\n", unit->type);
+ return AVERROR_PATCHWELCOME;
+ }
+
+ return 0;
+}
+
static int cbs_h2645_write_nal_unit(CodedBitstreamContext *ctx,
CodedBitstreamUnit *unit)
{
@@ -874,7 +1242,10 @@ 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.
@@ -940,8 +1311,13 @@ 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;
@@ -995,6 +1371,23 @@ 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,
@@ -1008,3 +1401,17 @@ 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..b4777cf6be
--- /dev/null
+++ b/libavcodec/cbs_h265.h
@@ -0,0 +1,537 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#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..dae7f2dd46
--- /dev/null
+++ b/libavcodec/cbs_h265_syntax_template.c
@@ -0,0 +1,1503 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+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
+ GetBitContext start;
+ uint8_t bit;
+ start = *rw;
+ for (k = 0; cbs_h2645_read_more_rbsp_data(rw); k++)
+ skip_bits(rw, 1);
+ 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, 3);
+ 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 2d417d4a40..f8263bef0a 100644
--- a/libavcodec/cbs_internal.h
+++ b/libavcodec/cbs_internal.h
@@ -84,6 +84,7 @@ 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 */
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