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FFmpeg/libavcodec/libx265.c
Andreas Rheinhardt 7c95c7de4a avcodec/libx265: Don't copy A53 closed captions by default 
The SEI handling of libx265 is buggy and can easily lead
to memory corruption: It reuses certain buffers, but when
reusing them it presumes that it is enough for these buffers
to exist and does not check whether they are actually large
enough to hold what is intended to be stored in them.*

Our users are exposed to this because forwarding A53 CC data
is enabled by default. Change this to make it disabled
by default.

"Fixes" tickets #10411, #11052 and (presumably) #10906.

*: See https://trac.ffmpeg.org/ticket/9666#comment:1

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-06-16 12:30:59 +02:00

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/*
* libx265 encoder
*
* Copyright (c) 2013-2014 Derek Buitenhuis
*
* 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
*/
#if defined(_MSC_VER)
#define X265_API_IMPORTS 1
#endif
#include <x265.h>
#include <float.h>
#include "libavutil/avassert.h"
#include "libavutil/buffer.h"
#include "libavutil/internal.h"
#include "libavutil/mastering_display_metadata.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "dovi_rpu.h"
#include "encode.h"
#include "packet_internal.h"
#include "atsc_a53.h"
#include "sei.h"
typedef struct ReorderedData {
int64_t duration;
void *frame_opaque;
AVBufferRef *frame_opaque_ref;
int in_use;
} ReorderedData;
typedef struct libx265Context {
const AVClass *class;
x265_encoder *encoder;
x265_param *params;
const x265_api *api;
float crf;
int cqp;
int forced_idr;
char *preset;
char *tune;
char *profile;
AVDictionary *x265_opts;
void *sei_data;
int sei_data_size;
int udu_sei;
int a53_cc;
ReorderedData *rd;
int nb_rd;
/**
* If the encoder does not support ROI then warn the first time we
* encounter a frame with ROI side data.
*/
int roi_warned;
DOVIContext dovi;
} libx265Context;
static int is_keyframe(NalUnitType naltype)
{
switch (naltype) {
case NAL_UNIT_CODED_SLICE_BLA_W_LP:
case NAL_UNIT_CODED_SLICE_BLA_W_RADL:
case NAL_UNIT_CODED_SLICE_BLA_N_LP:
case NAL_UNIT_CODED_SLICE_IDR_W_RADL:
case NAL_UNIT_CODED_SLICE_IDR_N_LP:
case NAL_UNIT_CODED_SLICE_CRA:
return 1;
default:
return 0;
}
}
static int rd_get(libx265Context *ctx)
{
const int add = 16;
ReorderedData *tmp;
int idx;
for (int i = 0; i < ctx->nb_rd; i++)
if (!ctx->rd[i].in_use) {
ctx->rd[i].in_use = 1;
return i;
}
tmp = av_realloc_array(ctx->rd, ctx->nb_rd + add, sizeof(*ctx->rd));
if (!tmp)
return AVERROR(ENOMEM);
memset(tmp + ctx->nb_rd, 0, sizeof(*tmp) * add);
ctx->rd = tmp;
ctx->nb_rd += add;
idx = ctx->nb_rd - add;
ctx->rd[idx].in_use = 1;
return idx;
}
static void rd_release(libx265Context *ctx, int idx)
{
av_assert0(idx >= 0 && idx < ctx->nb_rd);
av_buffer_unref(&ctx->rd[idx].frame_opaque_ref);
memset(&ctx->rd[idx], 0, sizeof(ctx->rd[idx]));
}
static av_cold int libx265_encode_close(AVCodecContext *avctx)
{
libx265Context *ctx = avctx->priv_data;
ctx->api->param_free(ctx->params);
av_freep(&ctx->sei_data);
for (int i = 0; i < ctx->nb_rd; i++)
rd_release(ctx, i);
av_freep(&ctx->rd);
if (ctx->encoder)
ctx->api->encoder_close(ctx->encoder);
ff_dovi_ctx_unref(&ctx->dovi);
return 0;
}
static av_cold int libx265_param_parse_float(AVCodecContext *avctx,
const char *key, float value)
{
libx265Context *ctx = avctx->priv_data;
char buf[256];
snprintf(buf, sizeof(buf), "%2.2f", value);
if (ctx->api->param_parse(ctx->params, key, buf) == X265_PARAM_BAD_VALUE) {
av_log(avctx, AV_LOG_ERROR, "Invalid value %2.2f for param \"%s\".\n", value, key);
return AVERROR(EINVAL);
}
return 0;
}
static av_cold int libx265_param_parse_int(AVCodecContext *avctx,
const char *key, int value)
{
libx265Context *ctx = avctx->priv_data;
char buf[256];
snprintf(buf, sizeof(buf), "%d", value);
if (ctx->api->param_parse(ctx->params, key, buf) == X265_PARAM_BAD_VALUE) {
av_log(avctx, AV_LOG_ERROR, "Invalid value %d for param \"%s\".\n", value, key);
return AVERROR(EINVAL);
}
return 0;
}
static int handle_mdcv(void *logctx, const x265_api *api,
x265_param *params,
const AVMasteringDisplayMetadata *mdcv)
{
char buf[10 /* # of PRId64s */ * 20 /* max strlen for %PRId64 */ + sizeof("G(,)B(,)R(,)WP(,)L(,)")];
// G(%hu,%hu)B(%hu,%hu)R(%hu,%hu)WP(%hu,%hu)L(%u,%u)
snprintf(buf, sizeof(buf),
"G(%"PRId64",%"PRId64")B(%"PRId64",%"PRId64")R(%"PRId64",%"PRId64")"
"WP(%"PRId64",%"PRId64")L(%"PRId64",%"PRId64")",
av_rescale_q(1, mdcv->display_primaries[1][0], (AVRational){ 1, 50000 }),
av_rescale_q(1, mdcv->display_primaries[1][1], (AVRational){ 1, 50000 }),
av_rescale_q(1, mdcv->display_primaries[2][0], (AVRational){ 1, 50000 }),
av_rescale_q(1, mdcv->display_primaries[2][1], (AVRational){ 1, 50000 }),
av_rescale_q(1, mdcv->display_primaries[0][0], (AVRational){ 1, 50000 }),
av_rescale_q(1, mdcv->display_primaries[0][1], (AVRational){ 1, 50000 }),
av_rescale_q(1, mdcv->white_point[0], (AVRational){ 1, 50000 }),
av_rescale_q(1, mdcv->white_point[1], (AVRational){ 1, 50000 }),
av_rescale_q(1, mdcv->max_luminance, (AVRational){ 1, 10000 }),
av_rescale_q(1, mdcv->min_luminance, (AVRational){ 1, 10000 }));
if (api->param_parse(params, "master-display", buf) ==
X265_PARAM_BAD_VALUE) {
av_log(logctx, AV_LOG_ERROR,
"Invalid value \"%s\" for param \"master-display\".\n",
buf);
return AVERROR(EINVAL);
}
return 0;
}
static int handle_side_data(AVCodecContext *avctx, const x265_api *api,
x265_param *params)
{
const AVFrameSideData *cll_sd =
av_frame_side_data_get(avctx->decoded_side_data,
avctx->nb_decoded_side_data, AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);
const AVFrameSideData *mdcv_sd =
av_frame_side_data_get(avctx->decoded_side_data,
avctx->nb_decoded_side_data,
AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);
if (cll_sd) {
const AVContentLightMetadata *cll =
(AVContentLightMetadata *)cll_sd->data;
params->maxCLL = cll->MaxCLL;
params->maxFALL = cll->MaxFALL;
}
if (mdcv_sd) {
int ret = handle_mdcv(
avctx, api, params,
(AVMasteringDisplayMetadata *)mdcv_sd->data);
if (ret < 0)
return ret;
}
return 0;
}
static av_cold int libx265_encode_init(AVCodecContext *avctx)
{
libx265Context *ctx = avctx->priv_data;
AVCPBProperties *cpb_props = NULL;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
int ret;
ctx->api = x265_api_get(desc->comp[0].depth);
if (!ctx->api)
ctx->api = x265_api_get(0);
ctx->params = ctx->api->param_alloc();
if (!ctx->params) {
av_log(avctx, AV_LOG_ERROR, "Could not allocate x265 param structure.\n");
return AVERROR(ENOMEM);
}
if (ctx->api->param_default_preset(ctx->params, ctx->preset, ctx->tune) < 0) {
int i;
av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", ctx->preset, ctx->tune);
av_log(avctx, AV_LOG_INFO, "Possible presets:");
for (i = 0; x265_preset_names[i]; i++)
av_log(avctx, AV_LOG_INFO, " %s", x265_preset_names[i]);
av_log(avctx, AV_LOG_INFO, "\n");
av_log(avctx, AV_LOG_INFO, "Possible tunes:");
for (i = 0; x265_tune_names[i]; i++)
av_log(avctx, AV_LOG_INFO, " %s", x265_tune_names[i]);
av_log(avctx, AV_LOG_INFO, "\n");
return AVERROR(EINVAL);
}
ctx->params->frameNumThreads = avctx->thread_count;
if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
ctx->params->fpsNum = avctx->framerate.num;
ctx->params->fpsDenom = avctx->framerate.den;
} else {
ctx->params->fpsNum = avctx->time_base.den;
FF_DISABLE_DEPRECATION_WARNINGS
ctx->params->fpsDenom = avctx->time_base.num
#if FF_API_TICKS_PER_FRAME
* avctx->ticks_per_frame
#endif
;
FF_ENABLE_DEPRECATION_WARNINGS
}
ctx->params->sourceWidth = avctx->width;
ctx->params->sourceHeight = avctx->height;
ctx->params->bEnablePsnr = !!(avctx->flags & AV_CODEC_FLAG_PSNR);
ctx->params->bOpenGOP = !(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP);
/* Tune the CTU size based on input resolution. */
if (ctx->params->sourceWidth < 64 || ctx->params->sourceHeight < 64)
ctx->params->maxCUSize = 32;
if (ctx->params->sourceWidth < 32 || ctx->params->sourceHeight < 32)
ctx->params->maxCUSize = 16;
if (ctx->params->sourceWidth < 16 || ctx->params->sourceHeight < 16) {
av_log(avctx, AV_LOG_ERROR, "Image size is too small (%dx%d).\n",
ctx->params->sourceWidth, ctx->params->sourceHeight);
return AVERROR(EINVAL);
}
ctx->params->vui.bEnableVideoSignalTypePresentFlag = 1;
if (avctx->color_range != AVCOL_RANGE_UNSPECIFIED)
ctx->params->vui.bEnableVideoFullRangeFlag =
avctx->color_range == AVCOL_RANGE_JPEG;
else
ctx->params->vui.bEnableVideoFullRangeFlag =
(desc->flags & AV_PIX_FMT_FLAG_RGB) ||
avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
avctx->pix_fmt == AV_PIX_FMT_YUVJ444P;
if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
avctx->color_trc != AVCOL_TRC_UNSPECIFIED ||
avctx->colorspace != AVCOL_SPC_UNSPECIFIED) {
ctx->params->vui.bEnableColorDescriptionPresentFlag = 1;
// x265 validates the parameters internally
ctx->params->vui.colorPrimaries = avctx->color_primaries;
ctx->params->vui.transferCharacteristics = avctx->color_trc;
#if X265_BUILD >= 159
if (avctx->color_trc == AVCOL_TRC_ARIB_STD_B67)
ctx->params->preferredTransferCharacteristics = ctx->params->vui.transferCharacteristics;
#endif
ctx->params->vui.matrixCoeffs = avctx->colorspace;
}
// chroma sample location values are to be ignored in case of non-4:2:0
// according to the specification, so we only write them out in case of
// 4:2:0 (log2_chroma_{w,h} == 1).
ctx->params->vui.bEnableChromaLocInfoPresentFlag =
avctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED &&
desc->log2_chroma_w == 1 && desc->log2_chroma_h == 1;
if (ctx->params->vui.bEnableChromaLocInfoPresentFlag) {
ctx->params->vui.chromaSampleLocTypeTopField =
ctx->params->vui.chromaSampleLocTypeBottomField =
avctx->chroma_sample_location - 1;
}
if (avctx->sample_aspect_ratio.num > 0 && avctx->sample_aspect_ratio.den > 0) {
char sar[12];
int sar_num, sar_den;
av_reduce(&sar_num, &sar_den,
avctx->sample_aspect_ratio.num,
avctx->sample_aspect_ratio.den, 65535);
snprintf(sar, sizeof(sar), "%d:%d", sar_num, sar_den);
if (ctx->api->param_parse(ctx->params, "sar", sar) == X265_PARAM_BAD_VALUE) {
av_log(avctx, AV_LOG_ERROR, "Invalid SAR: %d:%d.\n", sar_num, sar_den);
return AVERROR_INVALIDDATA;
}
}
switch (desc->log2_chroma_w) {
// 4:4:4, RGB. gray
case 0:
// gray
if (desc->nb_components == 1) {
if (ctx->api->api_build_number < 85) {
av_log(avctx, AV_LOG_ERROR,
"libx265 version is %d, must be at least 85 for gray encoding.\n",
ctx->api->api_build_number);
return AVERROR_INVALIDDATA;
}
ctx->params->internalCsp = X265_CSP_I400;
break;
}
// set identity matrix for RGB
if (desc->flags & AV_PIX_FMT_FLAG_RGB) {
ctx->params->vui.matrixCoeffs = AVCOL_SPC_RGB;
ctx->params->vui.bEnableVideoSignalTypePresentFlag = 1;
ctx->params->vui.bEnableColorDescriptionPresentFlag = 1;
}
ctx->params->internalCsp = X265_CSP_I444;
break;
// 4:2:0, 4:2:2
case 1:
ctx->params->internalCsp = desc->log2_chroma_h == 1 ?
X265_CSP_I420 : X265_CSP_I422;
break;
default:
av_log(avctx, AV_LOG_ERROR,
"Pixel format '%s' cannot be mapped to a libx265 CSP!\n",
desc->name);
return AVERROR_BUG;
}
ret = handle_side_data(avctx, ctx->api, ctx->params);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed handling side data! (%s)\n",
av_err2str(ret));
return ret;
}
if (ctx->crf >= 0) {
char crf[6];
snprintf(crf, sizeof(crf), "%2.2f", ctx->crf);
if (ctx->api->param_parse(ctx->params, "crf", crf) == X265_PARAM_BAD_VALUE) {
av_log(avctx, AV_LOG_ERROR, "Invalid crf: %2.2f.\n", ctx->crf);
return AVERROR(EINVAL);
}
} else if (avctx->bit_rate > 0) {
ctx->params->rc.bitrate = avctx->bit_rate / 1000;
ctx->params->rc.rateControlMode = X265_RC_ABR;
} else if (ctx->cqp >= 0) {
ret = libx265_param_parse_int(avctx, "qp", ctx->cqp);
if (ret < 0)
return ret;
}
if (avctx->qmin >= 0) {
ret = libx265_param_parse_int(avctx, "qpmin", avctx->qmin);
if (ret < 0)
return ret;
}
if (avctx->qmax >= 0) {
ret = libx265_param_parse_int(avctx, "qpmax", avctx->qmax);
if (ret < 0)
return ret;
}
if (avctx->max_qdiff >= 0) {
ret = libx265_param_parse_int(avctx, "qpstep", avctx->max_qdiff);
if (ret < 0)
return ret;
}
if (avctx->qblur >= 0) {
ret = libx265_param_parse_float(avctx, "qblur", avctx->qblur);
if (ret < 0)
return ret;
}
if (avctx->qcompress >= 0) {
ret = libx265_param_parse_float(avctx, "qcomp", avctx->qcompress);
if (ret < 0)
return ret;
}
if (avctx->i_quant_factor >= 0) {
ret = libx265_param_parse_float(avctx, "ipratio", avctx->i_quant_factor);
if (ret < 0)
return ret;
}
if (avctx->b_quant_factor >= 0) {
ret = libx265_param_parse_float(avctx, "pbratio", avctx->b_quant_factor);
if (ret < 0)
return ret;
}
ctx->params->rc.vbvBufferSize = avctx->rc_buffer_size / 1000;
ctx->params->rc.vbvMaxBitrate = avctx->rc_max_rate / 1000;
cpb_props = ff_encode_add_cpb_side_data(avctx);
if (!cpb_props)
return AVERROR(ENOMEM);
cpb_props->buffer_size = ctx->params->rc.vbvBufferSize * 1000;
cpb_props->max_bitrate = ctx->params->rc.vbvMaxBitrate * 1000LL;
cpb_props->avg_bitrate = ctx->params->rc.bitrate * 1000LL;
if (!(avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER))
ctx->params->bRepeatHeaders = 1;
if (avctx->gop_size >= 0) {
ret = libx265_param_parse_int(avctx, "keyint", avctx->gop_size);
if (ret < 0)
return ret;
}
if (avctx->keyint_min > 0) {
ret = libx265_param_parse_int(avctx, "min-keyint", avctx->keyint_min);
if (ret < 0)
return ret;
}
if (avctx->max_b_frames >= 0) {
ret = libx265_param_parse_int(avctx, "bframes", avctx->max_b_frames);
if (ret < 0)
return ret;
}
if (avctx->refs >= 0) {
ret = libx265_param_parse_int(avctx, "ref", avctx->refs);
if (ret < 0)
return ret;
}
{
const AVDictionaryEntry *en = NULL;
while ((en = av_dict_iterate(ctx->x265_opts, en))) {
int parse_ret = ctx->api->param_parse(ctx->params, en->key, en->value);
switch (parse_ret) {
case X265_PARAM_BAD_NAME:
av_log(avctx, AV_LOG_WARNING,
"Unknown option: %s.\n", en->key);
break;
case X265_PARAM_BAD_VALUE:
av_log(avctx, AV_LOG_WARNING,
"Invalid value for %s: %s.\n", en->key, en->value);
break;
default:
break;
}
}
}
if (ctx->params->rc.vbvBufferSize && avctx->rc_initial_buffer_occupancy > 1000 &&
ctx->params->rc.vbvBufferInit == 0.9) {
ctx->params->rc.vbvBufferInit = (float)avctx->rc_initial_buffer_occupancy / 1000;
}
if (ctx->profile) {
if (ctx->api->param_apply_profile(ctx->params, ctx->profile) < 0) {
int i;
av_log(avctx, AV_LOG_ERROR, "Invalid or incompatible profile set: %s.\n", ctx->profile);
av_log(avctx, AV_LOG_INFO, "Possible profiles:");
for (i = 0; x265_profile_names[i]; i++)
av_log(avctx, AV_LOG_INFO, " %s", x265_profile_names[i]);
av_log(avctx, AV_LOG_INFO, "\n");
return AVERROR(EINVAL);
}
}
#if X265_BUILD >= 167
ctx->dovi.logctx = avctx;
if ((ret = ff_dovi_configure(&ctx->dovi, avctx)) < 0)
return ret;
ctx->params->dolbyProfile = ctx->dovi.cfg.dv_profile * 10 +
ctx->dovi.cfg.dv_bl_signal_compatibility_id;
#endif
ctx->encoder = ctx->api->encoder_open(ctx->params);
if (!ctx->encoder) {
av_log(avctx, AV_LOG_ERROR, "Cannot open libx265 encoder.\n");
libx265_encode_close(avctx);
return AVERROR_INVALIDDATA;
}
if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
x265_nal *nal;
int nnal;
avctx->extradata_size = ctx->api->encoder_headers(ctx->encoder, &nal, &nnal);
if (avctx->extradata_size <= 0) {
av_log(avctx, AV_LOG_ERROR, "Cannot encode headers.\n");
libx265_encode_close(avctx);
return AVERROR_INVALIDDATA;
}
avctx->extradata = av_malloc(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!avctx->extradata) {
av_log(avctx, AV_LOG_ERROR,
"Cannot allocate HEVC header of size %d.\n", avctx->extradata_size);
libx265_encode_close(avctx);
return AVERROR(ENOMEM);
}
memcpy(avctx->extradata, nal[0].payload, avctx->extradata_size);
memset(avctx->extradata + avctx->extradata_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
}
return 0;
}
static av_cold int libx265_encode_set_roi(libx265Context *ctx, const AVFrame *frame, x265_picture* pic)
{
AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_REGIONS_OF_INTEREST);
if (sd) {
if (ctx->params->rc.aqMode == X265_AQ_NONE) {
if (!ctx->roi_warned) {
ctx->roi_warned = 1;
av_log(ctx, AV_LOG_WARNING, "Adaptive quantization must be enabled to use ROI encoding, skipping ROI.\n");
}
} else {
/* 8x8 block when qg-size is 8, 16*16 block otherwise. */
int mb_size = (ctx->params->rc.qgSize == 8) ? 8 : 16;
int mbx = (frame->width + mb_size - 1) / mb_size;
int mby = (frame->height + mb_size - 1) / mb_size;
int qp_range = 51 + 6 * (pic->bitDepth - 8);
int nb_rois;
const AVRegionOfInterest *roi;
uint32_t roi_size;
float *qoffsets; /* will be freed after encode is called. */
roi = (const AVRegionOfInterest*)sd->data;
roi_size = roi->self_size;
if (!roi_size || sd->size % roi_size != 0) {
av_log(ctx, AV_LOG_ERROR, "Invalid AVRegionOfInterest.self_size.\n");
return AVERROR(EINVAL);
}
nb_rois = sd->size / roi_size;
qoffsets = av_calloc(mbx * mby, sizeof(*qoffsets));
if (!qoffsets)
return AVERROR(ENOMEM);
// This list must be iterated in reverse because the first
// region in the list applies when regions overlap.
for (int i = nb_rois - 1; i >= 0; i--) {
int startx, endx, starty, endy;
float qoffset;
roi = (const AVRegionOfInterest*)(sd->data + roi_size * i);
starty = FFMIN(mby, roi->top / mb_size);
endy = FFMIN(mby, (roi->bottom + mb_size - 1)/ mb_size);
startx = FFMIN(mbx, roi->left / mb_size);
endx = FFMIN(mbx, (roi->right + mb_size - 1)/ mb_size);
if (roi->qoffset.den == 0) {
av_free(qoffsets);
av_log(ctx, AV_LOG_ERROR, "AVRegionOfInterest.qoffset.den must not be zero.\n");
return AVERROR(EINVAL);
}
qoffset = roi->qoffset.num * 1.0f / roi->qoffset.den;
qoffset = av_clipf(qoffset * qp_range, -qp_range, +qp_range);
for (int y = starty; y < endy; y++)
for (int x = startx; x < endx; x++)
qoffsets[x + y*mbx] = qoffset;
}
pic->quantOffsets = qoffsets;
}
}
return 0;
}
static void free_picture(libx265Context *ctx, x265_picture *pic)
{
x265_sei *sei = &pic->userSEI;
for (int i = 0; i < sei->numPayloads; i++)
av_free(sei->payloads[i].payload);
#if X265_BUILD >= 167
av_free(pic->rpu.payload);
#endif
if (pic->userData) {
int idx = (int)(intptr_t)pic->userData - 1;
rd_release(ctx, idx);
pic->userData = NULL;
}
av_freep(&pic->quantOffsets);
sei->numPayloads = 0;
}
static int libx265_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
const AVFrame *pic, int *got_packet)
{
libx265Context *ctx = avctx->priv_data;
x265_picture x265pic;
x265_picture x265pic_out = { 0 };
x265_nal *nal;
x265_sei *sei;
uint8_t *dst;
int pict_type;
int payload = 0;
int nnal;
int ret;
int i;
ctx->api->picture_init(ctx->params, &x265pic);
sei = &x265pic.userSEI;
sei->numPayloads = 0;
if (pic) {
AVFrameSideData *sd;
ReorderedData *rd;
int rd_idx;
for (i = 0; i < 3; i++) {
x265pic.planes[i] = pic->data[i];
x265pic.stride[i] = pic->linesize[i];
}
x265pic.pts = pic->pts;
x265pic.bitDepth = av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth;
x265pic.sliceType = pic->pict_type == AV_PICTURE_TYPE_I ?
(ctx->forced_idr ? X265_TYPE_IDR : X265_TYPE_I) :
pic->pict_type == AV_PICTURE_TYPE_P ? X265_TYPE_P :
pic->pict_type == AV_PICTURE_TYPE_B ? X265_TYPE_B :
X265_TYPE_AUTO;
ret = libx265_encode_set_roi(ctx, pic, &x265pic);
if (ret < 0)
return ret;
rd_idx = rd_get(ctx);
if (rd_idx < 0) {
free_picture(ctx, &x265pic);
return rd_idx;
}
rd = &ctx->rd[rd_idx];
rd->duration = pic->duration;
if (avctx->flags & AV_CODEC_FLAG_COPY_OPAQUE) {
rd->frame_opaque = pic->opaque;
ret = av_buffer_replace(&rd->frame_opaque_ref, pic->opaque_ref);
if (ret < 0) {
rd_release(ctx, rd_idx);
free_picture(ctx, &x265pic);
return ret;
}
}
x265pic.userData = (void*)(intptr_t)(rd_idx + 1);
if (ctx->a53_cc) {
void *sei_data;
size_t sei_size;
ret = ff_alloc_a53_sei(pic, 0, &sei_data, &sei_size);
if (ret < 0) {
av_log(ctx, AV_LOG_ERROR, "Not enough memory for closed captions, skipping\n");
} else if (sei_data) {
void *tmp;
x265_sei_payload *sei_payload;
tmp = av_fast_realloc(ctx->sei_data,
&ctx->sei_data_size,
(sei->numPayloads + 1) * sizeof(*sei_payload));
if (!tmp) {
av_free(sei_data);
free_picture(ctx, &x265pic);
return AVERROR(ENOMEM);
}
ctx->sei_data = tmp;
sei->payloads = ctx->sei_data;
sei_payload = &sei->payloads[sei->numPayloads];
sei_payload->payload = sei_data;
sei_payload->payloadSize = sei_size;
sei_payload->payloadType = SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35;
sei->numPayloads++;
}
}
if (ctx->udu_sei) {
for (i = 0; i < pic->nb_side_data; i++) {
AVFrameSideData *side_data = pic->side_data[i];
void *tmp;
x265_sei_payload *sei_payload;
if (side_data->type != AV_FRAME_DATA_SEI_UNREGISTERED)
continue;
tmp = av_fast_realloc(ctx->sei_data,
&ctx->sei_data_size,
(sei->numPayloads + 1) * sizeof(*sei_payload));
if (!tmp) {
free_picture(ctx, &x265pic);
return AVERROR(ENOMEM);
}
ctx->sei_data = tmp;
sei->payloads = ctx->sei_data;
sei_payload = &sei->payloads[sei->numPayloads];
sei_payload->payload = av_memdup(side_data->data, side_data->size);
if (!sei_payload->payload) {
free_picture(ctx, &x265pic);
return AVERROR(ENOMEM);
}
sei_payload->payloadSize = side_data->size;
/* Equal to libx265 USER_DATA_UNREGISTERED */
sei_payload->payloadType = SEI_TYPE_USER_DATA_UNREGISTERED;
sei->numPayloads++;
}
}
#if X265_BUILD >= 167
sd = av_frame_get_side_data(pic, AV_FRAME_DATA_DOVI_METADATA);
if (ctx->dovi.cfg.dv_profile && sd) {
const AVDOVIMetadata *metadata = (const AVDOVIMetadata *)sd->data;
ret = ff_dovi_rpu_generate(&ctx->dovi, metadata, &x265pic.rpu.payload,
&x265pic.rpu.payloadSize);
if (ret < 0) {
free_picture(ctx, &x265pic);
return ret;
}
} else if (ctx->dovi.cfg.dv_profile) {
av_log(avctx, AV_LOG_ERROR, "Dolby Vision enabled, but received frame "
"without AV_FRAME_DATA_DOVI_METADATA");
free_picture(ctx, &x265pic);
return AVERROR_INVALIDDATA;
}
#endif
}
ret = ctx->api->encoder_encode(ctx->encoder, &nal, &nnal,
pic ? &x265pic : NULL, &x265pic_out);
for (i = 0; i < sei->numPayloads; i++)
av_free(sei->payloads[i].payload);
av_freep(&x265pic.quantOffsets);
if (ret < 0)
return AVERROR_EXTERNAL;
if (!nnal)
return 0;
for (i = 0; i < nnal; i++)
payload += nal[i].sizeBytes;
ret = ff_get_encode_buffer(avctx, pkt, payload, 0);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
return ret;
}
dst = pkt->data;
for (i = 0; i < nnal; i++) {
memcpy(dst, nal[i].payload, nal[i].sizeBytes);
dst += nal[i].sizeBytes;
if (is_keyframe(nal[i].type))
pkt->flags |= AV_PKT_FLAG_KEY;
}
pkt->pts = x265pic_out.pts;
pkt->dts = x265pic_out.dts;
switch (x265pic_out.sliceType) {
case X265_TYPE_IDR:
case X265_TYPE_I:
pict_type = AV_PICTURE_TYPE_I;
break;
case X265_TYPE_P:
pict_type = AV_PICTURE_TYPE_P;
break;
case X265_TYPE_B:
case X265_TYPE_BREF:
pict_type = AV_PICTURE_TYPE_B;
break;
default:
av_log(avctx, AV_LOG_ERROR, "Unknown picture type encountered.\n");
return AVERROR_EXTERNAL;
}
#if X265_BUILD >= 130
if (x265pic_out.sliceType == X265_TYPE_B)
#else
if (x265pic_out.frameData.sliceType == 'b')
#endif
pkt->flags |= AV_PKT_FLAG_DISPOSABLE;
ff_side_data_set_encoder_stats(pkt, x265pic_out.frameData.qp * FF_QP2LAMBDA, NULL, 0, pict_type);
if (x265pic_out.userData) {
int idx = (int)(intptr_t)x265pic_out.userData - 1;
ReorderedData *rd = &ctx->rd[idx];
pkt->duration = rd->duration;
if (avctx->flags & AV_CODEC_FLAG_COPY_OPAQUE) {
pkt->opaque = rd->frame_opaque;
pkt->opaque_ref = rd->frame_opaque_ref;
rd->frame_opaque_ref = NULL;
}
rd_release(ctx, idx);
}
*got_packet = 1;
return 0;
}
static const enum AVPixelFormat x265_csp_eight[] = {
AV_PIX_FMT_YUV420P,
AV_PIX_FMT_YUVJ420P,
AV_PIX_FMT_YUV422P,
AV_PIX_FMT_YUVJ422P,
AV_PIX_FMT_YUV444P,
AV_PIX_FMT_YUVJ444P,
AV_PIX_FMT_GBRP,
AV_PIX_FMT_GRAY8,
AV_PIX_FMT_NONE
};
static const enum AVPixelFormat x265_csp_ten[] = {
AV_PIX_FMT_YUV420P,
AV_PIX_FMT_YUVJ420P,
AV_PIX_FMT_YUV422P,
AV_PIX_FMT_YUVJ422P,
AV_PIX_FMT_YUV444P,
AV_PIX_FMT_YUVJ444P,
AV_PIX_FMT_GBRP,
AV_PIX_FMT_YUV420P10,
AV_PIX_FMT_YUV422P10,
AV_PIX_FMT_YUV444P10,
AV_PIX_FMT_GBRP10,
AV_PIX_FMT_GRAY8,
AV_PIX_FMT_GRAY10,
AV_PIX_FMT_NONE
};
static const enum AVPixelFormat x265_csp_twelve[] = {
AV_PIX_FMT_YUV420P,
AV_PIX_FMT_YUVJ420P,
AV_PIX_FMT_YUV422P,
AV_PIX_FMT_YUVJ422P,
AV_PIX_FMT_YUV444P,
AV_PIX_FMT_YUVJ444P,
AV_PIX_FMT_GBRP,
AV_PIX_FMT_YUV420P10,
AV_PIX_FMT_YUV422P10,
AV_PIX_FMT_YUV444P10,
AV_PIX_FMT_GBRP10,
AV_PIX_FMT_YUV420P12,
AV_PIX_FMT_YUV422P12,
AV_PIX_FMT_YUV444P12,
AV_PIX_FMT_GBRP12,
AV_PIX_FMT_GRAY8,
AV_PIX_FMT_GRAY10,
AV_PIX_FMT_GRAY12,
AV_PIX_FMT_NONE
};
static av_cold void libx265_encode_init_csp(FFCodec *codec)
{
if (x265_api_get(12))
codec->p.pix_fmts = x265_csp_twelve;
else if (x265_api_get(10))
codec->p.pix_fmts = x265_csp_ten;
else if (x265_api_get(8))
codec->p.pix_fmts = x265_csp_eight;
}
#define OFFSET(x) offsetof(libx265Context, x)
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
{ "crf", "set the x265 crf", OFFSET(crf), AV_OPT_TYPE_FLOAT, { .dbl = -1 }, -1, FLT_MAX, VE },
{ "qp", "set the x265 qp", OFFSET(cqp), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE },
{ "forced-idr", "if forcing keyframes, force them as IDR frames", OFFSET(forced_idr),AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ "preset", "set the x265 preset", OFFSET(preset), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
{ "tune", "set the x265 tune parameter", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
{ "profile", "set the x265 profile", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE },
{ "udu_sei", "Use user data unregistered SEI if available", OFFSET(udu_sei), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ "a53cc", "Use A53 Closed Captions (if available)", OFFSET(a53_cc), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ "x265-params", "set the x265 configuration using a :-separated list of key=value parameters", OFFSET(x265_opts), AV_OPT_TYPE_DICT, { 0 }, 0, 0, VE },
#if X265_BUILD >= 167
{ "dolbyvision", "Enable Dolby Vision RPU coding", OFFSET(dovi.enable), AV_OPT_TYPE_BOOL, {.i64 = FF_DOVI_AUTOMATIC }, -1, 1, VE, .unit = "dovi" },
{ "auto", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DOVI_AUTOMATIC}, .flags = VE, .unit = "dovi" },
#endif
{ NULL }
};
static const AVClass class = {
.class_name = "libx265",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
static const FFCodecDefault x265_defaults[] = {
{ "b", "0" },
{ "bf", "-1" },
{ "g", "-1" },
{ "keyint_min", "-1" },
{ "refs", "-1" },
{ "qmin", "-1" },
{ "qmax", "-1" },
{ "qdiff", "-1" },
{ "qblur", "-1" },
{ "qcomp", "-1" },
{ "i_qfactor", "-1" },
{ "b_qfactor", "-1" },
{ NULL },
};
FFCodec ff_libx265_encoder = {
.p.name = "libx265",
CODEC_LONG_NAME("libx265 H.265 / HEVC"),
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_HEVC,
.p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY |
AV_CODEC_CAP_OTHER_THREADS |
AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
.p.priv_class = &class,
.p.wrapper_name = "libx265",
.init = libx265_encode_init,
.init_static_data = libx265_encode_init_csp,
FF_CODEC_ENCODE_CB(libx265_encode_frame),
.close = libx265_encode_close,
.priv_data_size = sizeof(libx265Context),
.defaults = x265_defaults,
.caps_internal = FF_CODEC_CAP_NOT_INIT_THREADSAFE |
FF_CODEC_CAP_AUTO_THREADS,
};
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