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FFmpeg/libavcodec/libx265.c
Niklas Haas 39ca87ed1e avcodec/libx265: implement dolby vision coding 
libx265 supports these natively, we just need to attach the generated
NALs to the x265picture, as well as setting the appropriate DV profile.
2024-04-22 12:17:56 +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;
}
{
AVDictionaryEntry *en = NULL;
while ((en = av_dict_get(ctx->x265_opts, "", en, AV_DICT_IGNORE_SUFFIX))) {
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 = 1 }, 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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