mirror of https://git.ffmpeg.org/ffmpeg.git
1420 lines
41 KiB
C
1420 lines
41 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/attributes.h"
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#include "libavutil/avassert.h"
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#include "bytestream.h"
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#include "cbs.h"
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#include "cbs_internal.h"
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#include "cbs_h264.h"
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#include "cbs_h265.h"
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#include "golomb.h"
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#include "h264.h"
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#include "h264_sei.h"
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#include "h2645_parse.h"
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#include "hevc.h"
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static int cbs_read_ue_golomb(CodedBitstreamContext *ctx, GetBitContext *gbc,
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const char *name, uint32_t *write_to,
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uint32_t range_min, uint32_t range_max)
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{
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uint32_t value;
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int position, i, j;
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unsigned int k;
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char bits[65];
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position = get_bits_count(gbc);
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for (i = 0; i < 32; i++) {
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if (get_bits_left(gbc) < i + 1) {
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av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid ue-golomb code at "
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"%s: bitstream ended.\n", name);
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return AVERROR_INVALIDDATA;
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}
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k = get_bits1(gbc);
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bits[i] = k ? '1' : '0';
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if (k)
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break;
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}
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if (i >= 32) {
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av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid ue-golomb code at "
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"%s: more than 31 zeroes.\n", name);
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return AVERROR_INVALIDDATA;
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}
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value = 1;
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for (j = 0; j < i; j++) {
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k = get_bits1(gbc);
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bits[i + j + 1] = k ? '1' : '0';
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value = value << 1 | k;
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}
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bits[i + j + 1] = 0;
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--value;
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if (ctx->trace_enable)
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ff_cbs_trace_syntax_element(ctx, position, name, bits, value);
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if (value < range_min || value > range_max) {
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av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: "
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"%"PRIu32", but must be in [%"PRIu32",%"PRIu32"].\n",
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name, value, range_min, range_max);
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return AVERROR_INVALIDDATA;
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}
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*write_to = value;
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return 0;
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}
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static int cbs_read_se_golomb(CodedBitstreamContext *ctx, GetBitContext *gbc,
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const char *name, int32_t *write_to,
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int32_t range_min, int32_t range_max)
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{
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int32_t value;
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int position, i, j;
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unsigned int k;
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uint32_t v;
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char bits[65];
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position = get_bits_count(gbc);
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for (i = 0; i < 32; i++) {
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if (get_bits_left(gbc) < i + 1) {
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av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid se-golomb code at "
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"%s: bitstream ended.\n", name);
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return AVERROR_INVALIDDATA;
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}
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k = get_bits1(gbc);
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bits[i] = k ? '1' : '0';
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if (k)
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break;
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}
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if (i >= 32) {
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av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid se-golomb code at "
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"%s: more than 31 zeroes.\n", name);
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return AVERROR_INVALIDDATA;
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}
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v = 1;
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for (j = 0; j < i; j++) {
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k = get_bits1(gbc);
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bits[i + j + 1] = k ? '1' : '0';
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v = v << 1 | k;
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}
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bits[i + j + 1] = 0;
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if (v & 1)
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value = -(int32_t)(v / 2);
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else
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value = v / 2;
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if (ctx->trace_enable)
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ff_cbs_trace_syntax_element(ctx, position, name, bits, value);
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if (value < range_min || value > range_max) {
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av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: "
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"%"PRId32", but must be in [%"PRId32",%"PRId32"].\n",
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name, value, range_min, range_max);
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return AVERROR_INVALIDDATA;
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}
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*write_to = value;
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return 0;
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}
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static int cbs_write_ue_golomb(CodedBitstreamContext *ctx, PutBitContext *pbc,
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const char *name, uint32_t value,
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uint32_t range_min, uint32_t range_max)
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{
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int len;
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if (value < range_min || value > range_max) {
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av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: "
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"%"PRIu32", but must be in [%"PRIu32",%"PRIu32"].\n",
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name, value, range_min, range_max);
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return AVERROR_INVALIDDATA;
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}
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av_assert0(value != UINT32_MAX);
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len = av_log2(value + 1);
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if (put_bits_left(pbc) < 2 * len + 1)
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return AVERROR(ENOSPC);
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if (ctx->trace_enable) {
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char bits[65];
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int i;
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for (i = 0; i < len; i++)
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bits[i] = '0';
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bits[len] = '1';
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for (i = 0; i < len; i++)
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bits[len + i + 1] = (value + 1) >> (len - i - 1) & 1 ? '1' : '0';
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bits[len + len + 1] = 0;
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ff_cbs_trace_syntax_element(ctx, put_bits_count(pbc), name, bits, value);
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}
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put_bits(pbc, len, 0);
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if (len + 1 < 32)
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put_bits(pbc, len + 1, value + 1);
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else
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put_bits32(pbc, value + 1);
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return 0;
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}
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static int cbs_write_se_golomb(CodedBitstreamContext *ctx, PutBitContext *pbc,
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const char *name, int32_t value,
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int32_t range_min, int32_t range_max)
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{
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int len;
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uint32_t uvalue;
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if (value < range_min || value > range_max) {
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av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: "
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"%"PRId32", but must be in [%"PRId32",%"PRId32"].\n",
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name, value, range_min, range_max);
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return AVERROR_INVALIDDATA;
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}
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av_assert0(value != INT32_MIN);
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if (value == 0)
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uvalue = 0;
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else if (value > 0)
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uvalue = 2 * (uint32_t)value - 1;
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else
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uvalue = 2 * (uint32_t)-value;
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len = av_log2(uvalue + 1);
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if (put_bits_left(pbc) < 2 * len + 1)
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return AVERROR(ENOSPC);
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if (ctx->trace_enable) {
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char bits[65];
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int i;
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for (i = 0; i < len; i++)
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bits[i] = '0';
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bits[len] = '1';
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for (i = 0; i < len; i++)
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bits[len + i + 1] = (uvalue + 1) >> (len - i - 1) & 1 ? '1' : '0';
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bits[len + len + 1] = 0;
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ff_cbs_trace_syntax_element(ctx, put_bits_count(pbc), name, bits, value);
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}
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put_bits(pbc, len, 0);
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if (len + 1 < 32)
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put_bits(pbc, len + 1, uvalue + 1);
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else
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put_bits32(pbc, uvalue + 1);
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return 0;
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}
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#define HEADER(name) do { \
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ff_cbs_trace_header(ctx, name); \
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} while (0)
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#define CHECK(call) do { \
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err = (call); \
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if (err < 0) \
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return err; \
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} while (0)
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#define FUNC_NAME(rw, codec, name) cbs_ ## codec ## _ ## rw ## _ ## name
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#define FUNC_H264(rw, name) FUNC_NAME(rw, h264, name)
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#define FUNC_H265(rw, name) FUNC_NAME(rw, h265, name)
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#define READ
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#define READWRITE read
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#define RWContext GetBitContext
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#define xu(width, name, var, range_min, range_max) do { \
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uint32_t value = range_min; \
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CHECK(ff_cbs_read_unsigned(ctx, rw, width, #name, \
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&value, range_min, range_max)); \
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var = value; \
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} while (0)
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#define xue(name, var, range_min, range_max) do { \
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uint32_t value = range_min; \
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CHECK(cbs_read_ue_golomb(ctx, rw, #name, \
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&value, range_min, range_max)); \
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var = value; \
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} while (0)
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#define xse(name, var, range_min, range_max) do { \
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int32_t value = range_min; \
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CHECK(cbs_read_se_golomb(ctx, rw, #name, \
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&value, range_min, range_max)); \
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var = value; \
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} while (0)
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#define u(width, name, range_min, range_max) \
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xu(width, name, current->name, range_min, range_max)
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#define flag(name) u(1, name, 0, 1)
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#define ue(name, range_min, range_max) \
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xue(name, current->name, range_min, range_max)
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#define se(name, range_min, range_max) \
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xse(name, current->name, range_min, range_max)
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#define infer(name, value) do { \
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current->name = value; \
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} while (0)
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static int cbs_h2645_read_more_rbsp_data(GetBitContext *gbc)
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{
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int bits_left = get_bits_left(gbc);
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if (bits_left > 8)
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return 1;
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if (show_bits(gbc, bits_left) == 1 << (bits_left - 1))
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return 0;
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return 1;
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}
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#define more_rbsp_data(var) ((var) = cbs_h2645_read_more_rbsp_data(rw))
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#define byte_alignment(rw) (get_bits_count(rw) % 8)
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#define allocate(name, size) do { \
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name = av_mallocz(size); \
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if (!name) \
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return AVERROR(ENOMEM); \
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} while (0)
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#define FUNC(name) FUNC_H264(READWRITE, name)
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#include "cbs_h264_syntax_template.c"
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#undef FUNC
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#define FUNC(name) FUNC_H265(READWRITE, name)
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#include "cbs_h265_syntax_template.c"
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#undef FUNC
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#undef READ
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#undef READWRITE
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#undef RWContext
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#undef xu
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#undef xue
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#undef xse
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#undef u
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#undef flag
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#undef ue
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#undef se
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#undef infer
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#undef more_rbsp_data
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#undef byte_alignment
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#undef allocate
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#define WRITE
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#define READWRITE write
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#define RWContext PutBitContext
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#define xu(width, name, var, range_min, range_max) do { \
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uint32_t value = var; \
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CHECK(ff_cbs_write_unsigned(ctx, rw, width, #name, \
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value, range_min, range_max)); \
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} while (0)
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#define xue(name, var, range_min, range_max) do { \
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uint32_t value = var; \
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CHECK(cbs_write_ue_golomb(ctx, rw, #name, \
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value, range_min, range_max)); \
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} while (0)
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#define xse(name, var, range_min, range_max) do { \
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int32_t value = var; \
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CHECK(cbs_write_se_golomb(ctx, rw, #name, \
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value, range_min, range_max)); \
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} while (0)
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#define u(width, name, range_min, range_max) \
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xu(width, name, current->name, range_min, range_max)
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#define flag(name) u(1, name, 0, 1)
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#define ue(name, range_min, range_max) \
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xue(name, current->name, range_min, range_max)
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#define se(name, range_min, range_max) \
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xse(name, current->name, range_min, range_max)
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#define infer(name, value) do { \
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if (current->name != (value)) { \
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av_log(ctx->log_ctx, AV_LOG_WARNING, "Warning: " \
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"%s does not match inferred value: " \
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"%"PRId64", but should be %"PRId64".\n", \
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#name, (int64_t)current->name, (int64_t)(value)); \
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} \
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} while (0)
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#define more_rbsp_data(var) (var)
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#define byte_alignment(rw) (put_bits_count(rw) % 8)
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#define allocate(name, size) do { \
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if (!name) { \
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av_log(ctx->log_ctx, AV_LOG_ERROR, "%s must be set " \
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"for writing.\n", #name); \
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return AVERROR_INVALIDDATA; \
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} \
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} while (0)
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#define FUNC(name) FUNC_H264(READWRITE, name)
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#include "cbs_h264_syntax_template.c"
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#undef FUNC
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#define FUNC(name) FUNC_H265(READWRITE, name)
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#include "cbs_h265_syntax_template.c"
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#undef FUNC
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#undef WRITE
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#undef READWRITE
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#undef RWContext
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#undef xu
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#undef xue
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#undef xse
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#undef u
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#undef flag
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#undef ue
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#undef se
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#undef infer
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#undef more_rbsp_data
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#undef byte_alignment
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#undef allocate
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static void cbs_h264_free_sei(H264RawSEI *sei)
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{
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int i;
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for (i = 0; i < sei->payload_count; i++) {
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H264RawSEIPayload *payload = &sei->payload[i];
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switch (payload->payload_type) {
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case H264_SEI_TYPE_BUFFERING_PERIOD:
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case H264_SEI_TYPE_PIC_TIMING:
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case H264_SEI_TYPE_RECOVERY_POINT:
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case H264_SEI_TYPE_DISPLAY_ORIENTATION:
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break;
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case H264_SEI_TYPE_USER_DATA_REGISTERED:
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av_freep(&payload->payload.user_data_registered.data);
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break;
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case H264_SEI_TYPE_USER_DATA_UNREGISTERED:
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av_freep(&payload->payload.user_data_unregistered.data);
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break;
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default:
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av_freep(&payload->payload.other.data);
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break;
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}
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}
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}
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static void cbs_h264_free_slice(H264RawSlice *slice)
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{
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av_freep(&slice->data);
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}
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static void cbs_h264_free_nal_unit(CodedBitstreamUnit *unit)
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{
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switch (unit->type) {
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case H264_NAL_SEI:
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cbs_h264_free_sei(unit->content);
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break;
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case H264_NAL_IDR_SLICE:
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case H264_NAL_SLICE:
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cbs_h264_free_slice(unit->content);
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break;
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}
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av_freep(&unit->content);
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}
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static void cbs_h265_free_nal_unit(CodedBitstreamUnit *unit)
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{
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switch (unit->type) {
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case HEVC_NAL_VPS:
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av_freep(&((H265RawVPS*)unit->content)->extension_data.data);
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break;
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case HEVC_NAL_SPS:
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av_freep(&((H265RawSPS*)unit->content)->extension_data.data);
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break;
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case HEVC_NAL_PPS:
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av_freep(&((H265RawPPS*)unit->content)->extension_data.data);
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break;
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case HEVC_NAL_TRAIL_N:
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case HEVC_NAL_TRAIL_R:
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case HEVC_NAL_TSA_N:
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case HEVC_NAL_TSA_R:
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case HEVC_NAL_STSA_N:
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case HEVC_NAL_STSA_R:
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case HEVC_NAL_RADL_N:
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case HEVC_NAL_RADL_R:
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case HEVC_NAL_RASL_N:
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case HEVC_NAL_RASL_R:
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case HEVC_NAL_BLA_W_LP:
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case HEVC_NAL_BLA_W_RADL:
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case HEVC_NAL_BLA_N_LP:
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case HEVC_NAL_IDR_W_RADL:
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case HEVC_NAL_IDR_N_LP:
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case HEVC_NAL_CRA_NUT:
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av_freep(&((H265RawSlice*)unit->content)->data);
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break;
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}
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av_freep(&unit->content);
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}
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|
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static int cbs_h2645_fragment_add_nals(CodedBitstreamContext *ctx,
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CodedBitstreamFragment *frag,
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const H2645Packet *packet)
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|
{
|
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int err, i;
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|
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for (i = 0; i < packet->nb_nals; i++) {
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const H2645NAL *nal = &packet->nals[i];
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size_t size = nal->size;
|
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uint8_t *data;
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|
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// Remove trailing zeroes.
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while (size > 0 && nal->data[size - 1] == 0)
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--size;
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av_assert0(size > 0);
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|
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data = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
|
|
if (!data)
|
|
return AVERROR(ENOMEM);
|
|
memcpy(data, nal->data, size);
|
|
memset(data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
|
|
|
|
err = ff_cbs_insert_unit_data(ctx, frag, -1, nal->type,
|
|
data, size);
|
|
if (err < 0) {
|
|
av_freep(&data);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cbs_h2645_split_fragment(CodedBitstreamContext *ctx,
|
|
CodedBitstreamFragment *frag,
|
|
int header)
|
|
{
|
|
enum AVCodecID codec_id = ctx->codec->codec_id;
|
|
CodedBitstreamH2645Context *priv = ctx->priv_data;
|
|
GetByteContext gbc;
|
|
int err;
|
|
|
|
av_assert0(frag->data && frag->nb_units == 0);
|
|
if (frag->data_size == 0)
|
|
return 0;
|
|
|
|
if (header && frag->data[0] && codec_id == AV_CODEC_ID_H264) {
|
|
// AVCC header.
|
|
size_t size, start, end;
|
|
int i, count, version;
|
|
|
|
priv->mp4 = 1;
|
|
|
|
bytestream2_init(&gbc, frag->data, frag->data_size);
|
|
|
|
if (bytestream2_get_bytes_left(&gbc) < 6)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
version = bytestream2_get_byte(&gbc);
|
|
if (version != 1) {
|
|
av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid AVCC header: "
|
|
"first byte %u.", version);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
bytestream2_skip(&gbc, 3);
|
|
priv->nal_length_size = (bytestream2_get_byte(&gbc) & 3) + 1;
|
|
|
|
// SPS array.
|
|
count = bytestream2_get_byte(&gbc) & 0x1f;
|
|
start = bytestream2_tell(&gbc);
|
|
for (i = 0; i < count; i++) {
|
|
if (bytestream2_get_bytes_left(&gbc) < 2 * (count - i))
|
|
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_H264, 1);
|
|
if (err < 0) {
|
|
av_log(ctx->log_ctx, AV_LOG_ERROR, "Failed to split AVCC SPS array.\n");
|
|
return err;
|
|
}
|
|
err = cbs_h2645_fragment_add_nals(ctx, frag, &priv->read_packet);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
// PPS array.
|
|
count = bytestream2_get_byte(&gbc);
|
|
start = bytestream2_tell(&gbc);
|
|
for (i = 0; i < count; i++) {
|
|
if (bytestream2_get_bytes_left(&gbc) < 2 * (count - i))
|
|
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_H264, 1);
|
|
if (err < 0) {
|
|
av_log(ctx->log_ctx, AV_LOG_ERROR, "Failed to split AVCC PPS array.\n");
|
|
return err;
|
|
}
|
|
err = cbs_h2645_fragment_add_nals(ctx, frag, &priv->read_packet);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (bytestream2_get_bytes_left(&gbc) > 0) {
|
|
av_log(ctx->log_ctx, AV_LOG_WARNING, "%u bytes left at end of AVCC "
|
|
"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.
|
|
|
|
err = ff_h2645_packet_split(&priv->read_packet,
|
|
frag->data, frag->data_size,
|
|
ctx->log_ctx,
|
|
priv->mp4, priv->nal_length_size,
|
|
codec_id, 1);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = cbs_h2645_fragment_add_nals(ctx, frag, &priv->read_packet);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define cbs_h2645_replace_ps(h26n, ps_name, ps_var, id_element) \
|
|
static int cbs_h26 ## h26n ## _replace_ ## ps_var(CodedBitstreamContext *ctx, \
|
|
const H26 ## h26n ## Raw ## ps_name *ps_var) \
|
|
{ \
|
|
CodedBitstreamH26 ## h26n ## Context *priv = ctx->priv_data; \
|
|
unsigned int id = ps_var->id_element; \
|
|
if (id > FF_ARRAY_ELEMS(priv->ps_var)) { \
|
|
av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid " #ps_name \
|
|
" id : %d.\n", id); \
|
|
return AVERROR_INVALIDDATA; \
|
|
} \
|
|
av_freep(&priv->ps_var[id]); \
|
|
priv->ps_var[id] = av_malloc(sizeof(*ps_var)); \
|
|
if (!priv->ps_var[id]) \
|
|
return AVERROR(ENOMEM); \
|
|
memcpy(priv->ps_var[id], ps_var, sizeof(*ps_var)); \
|
|
return 0; \
|
|
}
|
|
|
|
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)
|
|
{
|
|
GetBitContext gbc;
|
|
int err;
|
|
|
|
err = init_get_bits(&gbc, unit->data, 8 * unit->data_size);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
switch (unit->type) {
|
|
case H264_NAL_SPS:
|
|
{
|
|
H264RawSPS *sps;
|
|
|
|
sps = av_mallocz(sizeof(*sps));
|
|
if (!sps)
|
|
return AVERROR(ENOMEM);
|
|
err = cbs_h264_read_sps(ctx, &gbc, sps);
|
|
if (err >= 0)
|
|
err = cbs_h264_replace_sps(ctx, sps);
|
|
if (err < 0) {
|
|
av_free(sps);
|
|
return err;
|
|
}
|
|
|
|
unit->content = sps;
|
|
}
|
|
break;
|
|
|
|
case H264_NAL_SPS_EXT:
|
|
{
|
|
H264RawSPSExtension *sps_ext;
|
|
|
|
sps_ext = av_mallocz(sizeof(*sps_ext));
|
|
if (!sps_ext)
|
|
return AVERROR(ENOMEM);
|
|
err = cbs_h264_read_sps_extension(ctx, &gbc, sps_ext);
|
|
if (err < 0) {
|
|
av_free(sps_ext);
|
|
return err;
|
|
}
|
|
|
|
unit->content = sps_ext;
|
|
}
|
|
break;
|
|
|
|
case H264_NAL_PPS:
|
|
{
|
|
H264RawPPS *pps;
|
|
|
|
pps = av_mallocz(sizeof(*pps));
|
|
if (!pps)
|
|
return AVERROR(ENOMEM);
|
|
err = cbs_h264_read_pps(ctx, &gbc, pps);
|
|
if (err >= 0)
|
|
err = cbs_h264_replace_pps(ctx, pps);
|
|
if (err < 0) {
|
|
av_free(pps);
|
|
return err;
|
|
}
|
|
|
|
unit->content = pps;
|
|
}
|
|
break;
|
|
|
|
case H264_NAL_SLICE:
|
|
case H264_NAL_IDR_SLICE:
|
|
case H264_NAL_AUXILIARY_SLICE:
|
|
{
|
|
H264RawSlice *slice;
|
|
int pos, len;
|
|
|
|
slice = av_mallocz(sizeof(*slice));
|
|
if (!slice)
|
|
return AVERROR(ENOMEM);
|
|
err = cbs_h264_read_slice_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 H264_NAL_AUD:
|
|
{
|
|
H264RawAUD *aud;
|
|
|
|
aud = av_mallocz(sizeof(*aud));
|
|
if (!aud)
|
|
return AVERROR(ENOMEM);
|
|
err = cbs_h264_read_aud(ctx, &gbc, aud);
|
|
if (err < 0) {
|
|
av_free(aud);
|
|
return err;
|
|
}
|
|
|
|
unit->content = aud;
|
|
}
|
|
break;
|
|
|
|
case H264_NAL_SEI:
|
|
{
|
|
H264RawSEI *sei;
|
|
|
|
sei = av_mallocz(sizeof(*sei));
|
|
if (!sei)
|
|
return AVERROR(ENOMEM);
|
|
err = cbs_h264_read_sei(ctx, &gbc, sei);
|
|
if (err < 0) {
|
|
cbs_h264_free_sei(sei);
|
|
av_free(sei);
|
|
return err;
|
|
}
|
|
|
|
unit->content = sei;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return AVERROR(ENOSYS);
|
|
}
|
|
|
|
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)
|
|
{
|
|
int err;
|
|
|
|
switch (unit->type) {
|
|
case H264_NAL_SPS:
|
|
{
|
|
H264RawSPS *sps = unit->content;
|
|
|
|
err = cbs_h264_write_sps(ctx, pbc, sps);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = cbs_h264_replace_sps(ctx, sps);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
break;
|
|
|
|
case H264_NAL_SPS_EXT:
|
|
{
|
|
H264RawSPSExtension *sps_ext = unit->content;
|
|
|
|
err = cbs_h264_write_sps_extension(ctx, pbc, sps_ext);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
break;
|
|
|
|
case H264_NAL_PPS:
|
|
{
|
|
H264RawPPS *pps = unit->content;
|
|
|
|
err = cbs_h264_write_pps(ctx, pbc, pps);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = cbs_h264_replace_pps(ctx, pps);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
break;
|
|
|
|
case H264_NAL_SLICE:
|
|
case H264_NAL_IDR_SLICE:
|
|
case H264_NAL_AUXILIARY_SLICE:
|
|
{
|
|
H264RawSlice *slice = unit->content;
|
|
GetBitContext gbc;
|
|
int bits_left, end, zeroes;
|
|
|
|
err = cbs_h264_write_slice_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.
|
|
// (Bitstream may be unaligned!)
|
|
}
|
|
}
|
|
break;
|
|
|
|
case H264_NAL_AUD:
|
|
{
|
|
err = cbs_h264_write_aud(ctx, pbc, unit->content);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
break;
|
|
|
|
case H264_NAL_SEI:
|
|
{
|
|
err = cbs_h264_write_sei(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_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)
|
|
{
|
|
CodedBitstreamH2645Context *priv = ctx->priv_data;
|
|
enum AVCodecID codec_id = ctx->codec->codec_id;
|
|
PutBitContext pbc;
|
|
int err;
|
|
|
|
if (!priv->write_buffer) {
|
|
// Initial write buffer size is 1MB.
|
|
priv->write_buffer_size = 1024 * 1024;
|
|
|
|
reallocate_and_try_again:
|
|
err = av_reallocp(&priv->write_buffer, priv->write_buffer_size);
|
|
if (err < 0) {
|
|
av_log(ctx->log_ctx, AV_LOG_ERROR, "Unable to allocate a "
|
|
"sufficiently large write buffer (last attempt "
|
|
"%zu bytes).\n", priv->write_buffer_size);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
init_put_bits(&pbc, priv->write_buffer, priv->write_buffer_size);
|
|
|
|
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.
|
|
priv->write_buffer_size *= 2;
|
|
goto reallocate_and_try_again;
|
|
}
|
|
// Overflow but we didn't notice.
|
|
av_assert0(put_bits_count(&pbc) <= 8 * priv->write_buffer_size);
|
|
|
|
if (err < 0) {
|
|
// Write failed for some other reason.
|
|
return err;
|
|
}
|
|
|
|
if (put_bits_count(&pbc) % 8)
|
|
unit->data_bit_padding = 8 - put_bits_count(&pbc) % 8;
|
|
else
|
|
unit->data_bit_padding = 0;
|
|
|
|
unit->data_size = (put_bits_count(&pbc) + 7) / 8;
|
|
flush_put_bits(&pbc);
|
|
|
|
err = av_reallocp(&unit->data, unit->data_size);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
memcpy(unit->data, priv->write_buffer, unit->data_size);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cbs_h2645_assemble_fragment(CodedBitstreamContext *ctx,
|
|
CodedBitstreamFragment *frag)
|
|
{
|
|
uint8_t *data;
|
|
size_t max_size, dp, sp;
|
|
int err, i, zero_run;
|
|
|
|
for (i = 0; i < frag->nb_units; i++) {
|
|
// Data should already all have been written when we get here.
|
|
av_assert0(frag->units[i].data);
|
|
}
|
|
|
|
max_size = 0;
|
|
for (i = 0; i < frag->nb_units; i++) {
|
|
// Start code + content with worst-case emulation prevention.
|
|
max_size += 3 + frag->units[i].data_size * 3 / 2;
|
|
}
|
|
|
|
data = av_malloc(max_size);
|
|
if (!data)
|
|
return AVERROR(ENOMEM);
|
|
|
|
dp = 0;
|
|
for (i = 0; i < frag->nb_units; i++) {
|
|
CodedBitstreamUnit *unit = &frag->units[i];
|
|
|
|
if (unit->data_bit_padding > 0) {
|
|
if (i < frag->nb_units - 1)
|
|
av_log(ctx->log_ctx, AV_LOG_WARNING, "Probably invalid "
|
|
"unaligned padding on non-final NAL unit.\n");
|
|
else
|
|
frag->data_bit_padding = unit->data_bit_padding;
|
|
}
|
|
|
|
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;
|
|
}
|
|
// start_code_prefix_one_3bytes
|
|
data[dp++] = 0;
|
|
data[dp++] = 0;
|
|
data[dp++] = 1;
|
|
|
|
zero_run = 0;
|
|
for (sp = 0; sp < unit->data_size; sp++) {
|
|
if (zero_run < 2) {
|
|
if (unit->data[sp] == 0)
|
|
++zero_run;
|
|
else
|
|
zero_run = 0;
|
|
} else {
|
|
if ((unit->data[sp] & ~3) == 0) {
|
|
// emulation_prevention_three_byte
|
|
data[dp++] = 3;
|
|
}
|
|
zero_run = unit->data[sp] == 0;
|
|
}
|
|
data[dp++] = unit->data[sp];
|
|
}
|
|
}
|
|
|
|
av_assert0(dp <= max_size);
|
|
err = av_reallocp(&data, dp);
|
|
if (err)
|
|
return err;
|
|
|
|
frag->data = data;
|
|
frag->data_size = dp;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void cbs_h264_close(CodedBitstreamContext *ctx)
|
|
{
|
|
CodedBitstreamH264Context *h264 = ctx->priv_data;
|
|
int i;
|
|
|
|
ff_h2645_packet_uninit(&h264->common.read_packet);
|
|
|
|
av_freep(&h264->common.write_buffer);
|
|
|
|
for (i = 0; i < FF_ARRAY_ELEMS(h264->sps); i++)
|
|
av_freep(&h264->sps[i]);
|
|
for (i = 0; i < FF_ARRAY_ELEMS(h264->pps); i++)
|
|
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,
|
|
|
|
.priv_data_size = sizeof(CodedBitstreamH264Context),
|
|
|
|
.split_fragment = &cbs_h2645_split_fragment,
|
|
.read_unit = &cbs_h264_read_nal_unit,
|
|
.write_unit = &cbs_h2645_write_nal_unit,
|
|
.assemble_fragment = &cbs_h2645_assemble_fragment,
|
|
|
|
.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,
|
|
};
|