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FFmpeg/libavcodec/librav1e.c

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/*
* librav1e encoder
*
* Copyright (c) 2019 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
*/
#include <rav1e.h>
#include "libavutil/buffer.h"
#include "libavutil/internal.h"
#include "libavutil/avassert.h"
#include "libavutil/base64.h"
#include "libavutil/common.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "encode.h"
#include "internal.h"
typedef struct librav1eContext {
const AVClass *class;
RaContext *ctx;
AVFrame *frame;
RaFrame *rframe;
uint8_t *pass_data;
size_t pass_pos;
int pass_size;
AVDictionary *rav1e_opts;
int quantizer;
int speed;
int tiles;
int tile_rows;
int tile_cols;
} librav1eContext;
typedef struct FrameData {
int64_t pts;
int64_t duration;
#if FF_API_REORDERED_OPAQUE
int64_t reordered_opaque;
#endif
void *frame_opaque;
AVBufferRef *frame_opaque_ref;
} FrameData;
static inline RaPixelRange range_map(enum AVPixelFormat pix_fmt, enum AVColorRange range)
{
switch (pix_fmt) {
case AV_PIX_FMT_YUVJ420P:
case AV_PIX_FMT_YUVJ422P:
case AV_PIX_FMT_YUVJ444P:
return RA_PIXEL_RANGE_FULL;
}
switch (range) {
case AVCOL_RANGE_JPEG:
return RA_PIXEL_RANGE_FULL;
case AVCOL_RANGE_MPEG:
default:
return RA_PIXEL_RANGE_LIMITED;
}
}
static inline RaChromaSampling pix_fmt_map(enum AVPixelFormat pix_fmt)
{
switch (pix_fmt) {
case AV_PIX_FMT_YUV420P:
case AV_PIX_FMT_YUVJ420P:
case AV_PIX_FMT_YUV420P10:
case AV_PIX_FMT_YUV420P12:
return RA_CHROMA_SAMPLING_CS420;
case AV_PIX_FMT_YUV422P:
case AV_PIX_FMT_YUVJ422P:
case AV_PIX_FMT_YUV422P10:
case AV_PIX_FMT_YUV422P12:
return RA_CHROMA_SAMPLING_CS422;
case AV_PIX_FMT_YUV444P:
case AV_PIX_FMT_YUVJ444P:
case AV_PIX_FMT_YUV444P10:
case AV_PIX_FMT_YUV444P12:
return RA_CHROMA_SAMPLING_CS444;
default:
av_assert0(0);
}
}
static inline RaChromaSamplePosition chroma_loc_map(enum AVChromaLocation chroma_loc)
{
switch (chroma_loc) {
case AVCHROMA_LOC_LEFT:
return RA_CHROMA_SAMPLE_POSITION_VERTICAL;
case AVCHROMA_LOC_TOPLEFT:
return RA_CHROMA_SAMPLE_POSITION_COLOCATED;
default:
return RA_CHROMA_SAMPLE_POSITION_UNKNOWN;
}
}
static int get_stats(AVCodecContext *avctx, int eos)
{
librav1eContext *ctx = avctx->priv_data;
RaData* buf = rav1e_twopass_out(ctx->ctx);
if (!buf)
return 0;
if (!eos) {
uint8_t *tmp = av_fast_realloc(ctx->pass_data, &ctx->pass_size,
ctx->pass_pos + buf->len);
if (!tmp) {
rav1e_data_unref(buf);
return AVERROR(ENOMEM);
}
ctx->pass_data = tmp;
memcpy(ctx->pass_data + ctx->pass_pos, buf->data, buf->len);
ctx->pass_pos += buf->len;
} else {
size_t b64_size = AV_BASE64_SIZE(ctx->pass_pos);
memcpy(ctx->pass_data, buf->data, buf->len);
avctx->stats_out = av_malloc(b64_size);
if (!avctx->stats_out) {
rav1e_data_unref(buf);
return AVERROR(ENOMEM);
}
av_base64_encode(avctx->stats_out, b64_size, ctx->pass_data, ctx->pass_pos);
av_freep(&ctx->pass_data);
}
rav1e_data_unref(buf);
return 0;
}
static int set_stats(AVCodecContext *avctx)
{
librav1eContext *ctx = avctx->priv_data;
int ret = 1;
while (ret > 0 && ctx->pass_size - ctx->pass_pos > 0) {
ret = rav1e_twopass_in(ctx->ctx, ctx->pass_data + ctx->pass_pos, ctx->pass_size);
if (ret < 0)
return AVERROR_EXTERNAL;
ctx->pass_pos += ret;
}
return 0;
}
static av_cold int librav1e_encode_close(AVCodecContext *avctx)
{
librav1eContext *ctx = avctx->priv_data;
if (ctx->ctx) {
rav1e_context_unref(ctx->ctx);
ctx->ctx = NULL;
}
if (ctx->rframe) {
rav1e_frame_unref(ctx->rframe);
ctx->rframe = NULL;
}
av_frame_free(&ctx->frame);
av_freep(&ctx->pass_data);
return 0;
}
static av_cold int librav1e_encode_init(AVCodecContext *avctx)
{
librav1eContext *ctx = avctx->priv_data;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
RaConfig *cfg = NULL;
int rret;
int ret = 0;
ctx->frame = av_frame_alloc();
if (!ctx->frame)
return AVERROR(ENOMEM);
cfg = rav1e_config_default();
if (!cfg) {
av_log(avctx, AV_LOG_ERROR, "Could not allocate rav1e config.\n");
return AVERROR_EXTERNAL;
}
/*
* Rav1e currently uses the time base given to it only for ratecontrol... where
* the inverse is taken and used as a framerate. So, do what we do in other wrappers
* and use the framerate if we can.
*/
if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
rav1e_config_set_time_base(cfg, (RaRational) {
avctx->framerate.den, avctx->framerate.num
});
} else {
rav1e_config_set_time_base(cfg, (RaRational) {
avctx->time_base.num * avctx->ticks_per_frame,
avctx->time_base.den
});
}
if ((avctx->flags & AV_CODEC_FLAG_PASS1 || avctx->flags & AV_CODEC_FLAG_PASS2) && !avctx->bit_rate) {
av_log(avctx, AV_LOG_ERROR, "A bitrate must be set to use two pass mode.\n");
ret = AVERROR_INVALIDDATA;
goto end;
}
if (avctx->flags & AV_CODEC_FLAG_PASS2) {
if (!avctx->stats_in) {
av_log(avctx, AV_LOG_ERROR, "No stats file provided for second pass.\n");
ret = AVERROR(EINVAL);
goto end;
}
ctx->pass_size = (strlen(avctx->stats_in) * 3) / 4;
ctx->pass_data = av_malloc(ctx->pass_size);
if (!ctx->pass_data) {
av_log(avctx, AV_LOG_ERROR, "Could not allocate stats buffer.\n");
ret = AVERROR(ENOMEM);
goto end;
}
ctx->pass_size = av_base64_decode(ctx->pass_data, avctx->stats_in, ctx->pass_size);
if (ctx->pass_size < 0) {
av_log(avctx, AV_LOG_ERROR, "Invalid pass file.\n");
ret = AVERROR(EINVAL);
goto end;
}
}
{
const AVDictionaryEntry *en = NULL;
while ((en = av_dict_iterate(ctx->rav1e_opts, en))) {
if (rav1e_config_parse(cfg, en->key, en->value) < 0)
av_log(avctx, AV_LOG_WARNING, "Invalid value for %s: %s.\n", en->key, en->value);
}
}
rret = rav1e_config_parse_int(cfg, "width", avctx->width);
if (rret < 0) {
av_log(avctx, AV_LOG_ERROR, "Invalid width passed to rav1e.\n");
ret = AVERROR_INVALIDDATA;
goto end;
}
rret = rav1e_config_parse_int(cfg, "height", avctx->height);
if (rret < 0) {
av_log(avctx, AV_LOG_ERROR, "Invalid height passed to rav1e.\n");
ret = AVERROR_INVALIDDATA;
goto end;
}
if (avctx->sample_aspect_ratio.num > 0 && avctx->sample_aspect_ratio.den > 0)
rav1e_config_set_sample_aspect_ratio(cfg, (RaRational) {
avctx->sample_aspect_ratio.num,
avctx->sample_aspect_ratio.den
});
rret = rav1e_config_parse_int(cfg, "threads", avctx->thread_count);
if (rret < 0)
av_log(avctx, AV_LOG_WARNING, "Invalid number of threads, defaulting to auto.\n");
if (ctx->speed >= 0) {
rret = rav1e_config_parse_int(cfg, "speed", ctx->speed);
if (rret < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not set speed preset.\n");
ret = AVERROR_EXTERNAL;
goto end;
}
}
/* rav1e handles precedence between 'tiles' and cols/rows for us. */
if (ctx->tiles > 0) {
rret = rav1e_config_parse_int(cfg, "tiles", ctx->tiles);
if (rret < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not set number of tiles to encode with.\n");
ret = AVERROR_EXTERNAL;
goto end;
}
}
if (ctx->tile_rows > 0) {
rret = rav1e_config_parse_int(cfg, "tile_rows", ctx->tile_rows);
if (rret < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not set number of tile rows to encode with.\n");
ret = AVERROR_EXTERNAL;
goto end;
}
}
if (ctx->tile_cols > 0) {
rret = rav1e_config_parse_int(cfg, "tile_cols", ctx->tile_cols);
if (rret < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not set number of tile cols to encode with.\n");
ret = AVERROR_EXTERNAL;
goto end;
}
}
if (avctx->gop_size > 0) {
rret = rav1e_config_parse_int(cfg, "key_frame_interval", avctx->gop_size);
if (rret < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not set max keyint.\n");
ret = AVERROR_EXTERNAL;
goto end;
}
}
if (avctx->keyint_min > 0) {
rret = rav1e_config_parse_int(cfg, "min_key_frame_interval", avctx->keyint_min);
if (rret < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not set min keyint.\n");
ret = AVERROR_EXTERNAL;
goto end;
}
}
if (avctx->bit_rate && ctx->quantizer < 0) {
int max_quantizer = avctx->qmax >= 0 ? avctx->qmax : 255;
rret = rav1e_config_parse_int(cfg, "quantizer", max_quantizer);
if (rret < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not set max quantizer.\n");
ret = AVERROR_EXTERNAL;
goto end;
}
if (avctx->qmin >= 0) {
rret = rav1e_config_parse_int(cfg, "min_quantizer", avctx->qmin);
if (rret < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not set min quantizer.\n");
ret = AVERROR_EXTERNAL;
goto end;
}
}
rret = rav1e_config_parse_int(cfg, "bitrate", avctx->bit_rate);
if (rret < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not set bitrate.\n");
ret = AVERROR_INVALIDDATA;
goto end;
}
} else if (ctx->quantizer >= 0) {
if (avctx->bit_rate)
av_log(avctx, AV_LOG_WARNING, "Both bitrate and quantizer specified. Using quantizer mode.");
rret = rav1e_config_parse_int(cfg, "quantizer", ctx->quantizer);
if (rret < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not set quantizer.\n");
ret = AVERROR_EXTERNAL;
goto end;
}
}
rret = rav1e_config_set_pixel_format(cfg, desc->comp[0].depth,
pix_fmt_map(avctx->pix_fmt),
chroma_loc_map(avctx->chroma_sample_location),
range_map(avctx->pix_fmt, avctx->color_range));
if (rret < 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to set pixel format properties.\n");
ret = AVERROR_INVALIDDATA;
goto end;
}
/* rav1e's colorspace enums match standard values. */
rret = rav1e_config_set_color_description(cfg, (RaMatrixCoefficients) avctx->colorspace,
(RaColorPrimaries) avctx->color_primaries,
(RaTransferCharacteristics) avctx->color_trc);
if (rret < 0) {
av_log(avctx, AV_LOG_WARNING, "Failed to set color properties.\n");
if (avctx->err_recognition & AV_EF_EXPLODE) {
ret = AVERROR_INVALIDDATA;
goto end;
}
}
ctx->ctx = rav1e_context_new(cfg);
if (!ctx->ctx) {
av_log(avctx, AV_LOG_ERROR, "Failed to create rav1e encode context.\n");
ret = AVERROR_EXTERNAL;
goto end;
}
if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
RaData *seq_hdr = rav1e_container_sequence_header(ctx->ctx);
if (seq_hdr)
avctx->extradata = av_mallocz(seq_hdr->len + AV_INPUT_BUFFER_PADDING_SIZE);
if (!seq_hdr || !avctx->extradata) {
rav1e_data_unref(seq_hdr);
av_log(avctx, AV_LOG_ERROR, "Failed to get extradata.\n");
ret = seq_hdr ? AVERROR(ENOMEM) : AVERROR_EXTERNAL;
goto end;
}
memcpy(avctx->extradata, seq_hdr->data, seq_hdr->len);
avctx->extradata_size = seq_hdr->len;
rav1e_data_unref(seq_hdr);
}
ret = 0;
end:
rav1e_config_unref(cfg);
return ret;
}
static void frame_data_free(void *data)
{
FrameData *fd = data;
if (!fd)
return;
av_buffer_unref(&fd->frame_opaque_ref);
av_free(data);
}
static int librav1e_receive_packet(AVCodecContext *avctx, AVPacket *pkt)
{
librav1eContext *ctx = avctx->priv_data;
RaFrame *rframe = ctx->rframe;
RaPacket *rpkt = NULL;
FrameData *fd;
int ret;
if (!rframe) {
AVFrame *frame = ctx->frame;
ret = ff_encode_get_frame(avctx, frame);
if (ret < 0 && ret != AVERROR_EOF)
return ret;
if (frame->buf[0]) {
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
fd = av_mallocz(sizeof(*fd));
if (!fd) {
av_log(avctx, AV_LOG_ERROR, "Could not allocate PTS buffer.\n");
return AVERROR(ENOMEM);
}
fd->pts = frame->pts;
fd->duration = frame->duration;
#if FF_API_REORDERED_OPAQUE
FF_DISABLE_DEPRECATION_WARNINGS
fd->reordered_opaque = frame->reordered_opaque;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
if (avctx->flags & AV_CODEC_FLAG_COPY_OPAQUE) {
fd->frame_opaque = frame->opaque;
ret = av_buffer_replace(&fd->frame_opaque_ref, frame->opaque_ref);
if (ret < 0) {
frame_data_free(fd);
av_frame_unref(frame);
return ret;
}
}
rframe = rav1e_frame_new(ctx->ctx);
if (!rframe) {
av_log(avctx, AV_LOG_ERROR, "Could not allocate new rav1e frame.\n");
av_frame_unref(frame);
frame_data_free(fd);
return AVERROR(ENOMEM);
}
for (int i = 0; i < desc->nb_components; i++) {
int shift = i ? desc->log2_chroma_h : 0;
int bytes = desc->comp[0].depth == 8 ? 1 : 2;
rav1e_frame_fill_plane(rframe, i, frame->data[i],
(frame->height >> shift) * frame->linesize[i],
frame->linesize[i], bytes);
}
av_frame_unref(frame);
rav1e_frame_set_opaque(rframe, fd, frame_data_free);
}
}
ret = rav1e_send_frame(ctx->ctx, rframe);
if (rframe)
if (ret == RA_ENCODER_STATUS_ENOUGH_DATA) {
ctx->rframe = rframe; /* Queue is full. Store the RaFrame to retry next call */
} else {
rav1e_frame_unref(rframe); /* No need to unref if flushing. */
ctx->rframe = NULL;
}
switch (ret) {
case RA_ENCODER_STATUS_SUCCESS:
case RA_ENCODER_STATUS_ENOUGH_DATA:
break;
case RA_ENCODER_STATUS_FAILURE:
av_log(avctx, AV_LOG_ERROR, "Could not send frame: %s\n", rav1e_status_to_str(ret));
return AVERROR_EXTERNAL;
default:
av_log(avctx, AV_LOG_ERROR, "Unknown return code %d from rav1e_send_frame: %s\n", ret, rav1e_status_to_str(ret));
return AVERROR_UNKNOWN;
}
retry:
if (avctx->flags & AV_CODEC_FLAG_PASS1) {
int sret = get_stats(avctx, 0);
if (sret < 0)
return sret;
} else if (avctx->flags & AV_CODEC_FLAG_PASS2) {
int sret = set_stats(avctx);
if (sret < 0)
return sret;
}
ret = rav1e_receive_packet(ctx->ctx, &rpkt);
switch (ret) {
case RA_ENCODER_STATUS_SUCCESS:
break;
case RA_ENCODER_STATUS_LIMIT_REACHED:
if (avctx->flags & AV_CODEC_FLAG_PASS1) {
int sret = get_stats(avctx, 1);
if (sret < 0)
return sret;
}
return AVERROR_EOF;
case RA_ENCODER_STATUS_ENCODED:
goto retry;
case RA_ENCODER_STATUS_NEED_MORE_DATA:
if (avctx->internal->draining) {
av_log(avctx, AV_LOG_ERROR, "Unexpected error when receiving packet after EOF.\n");
return AVERROR_EXTERNAL;
}
return AVERROR(EAGAIN);
case RA_ENCODER_STATUS_FAILURE:
av_log(avctx, AV_LOG_ERROR, "Could not encode frame: %s\n", rav1e_status_to_str(ret));
return AVERROR_EXTERNAL;
default:
av_log(avctx, AV_LOG_ERROR, "Unknown return code %d from rav1e_receive_packet: %s\n", ret, rav1e_status_to_str(ret));
return AVERROR_UNKNOWN;
}
ret = ff_get_encode_buffer(avctx, pkt, rpkt->len, 0);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not allocate packet.\n");
rav1e_packet_unref(rpkt);
return ret;
}
memcpy(pkt->data, rpkt->data, rpkt->len);
if (rpkt->frame_type == RA_FRAME_TYPE_KEY)
pkt->flags |= AV_PKT_FLAG_KEY;
fd = rpkt->opaque;
pkt->pts = pkt->dts = fd->pts;
pkt->duration = fd->duration;
#if FF_API_REORDERED_OPAQUE
FF_DISABLE_DEPRECATION_WARNINGS
avctx->reordered_opaque = fd->reordered_opaque;
FF_ENABLE_DEPRECATION_WARNINGS
#endif
if (avctx->flags & AV_CODEC_FLAG_COPY_OPAQUE) {
pkt->opaque = fd->frame_opaque;
pkt->opaque_ref = fd->frame_opaque_ref;
fd->frame_opaque_ref = NULL;
}
frame_data_free(fd);
if (avctx->flags & AV_CODEC_FLAG_RECON_FRAME) {
AVCodecInternal *avci = avctx->internal;
AVFrame *frame = avci->recon_frame;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
av_frame_unref(frame);
frame->format = avctx->pix_fmt;
frame->width = avctx->width;
frame->height = avctx->height;
ret = ff_encode_alloc_frame(avctx, frame);
if (ret < 0) {
rav1e_packet_unref(rpkt);
return ret;
}
for (int i = 0; i < desc->nb_components; i++) {
int shift = i ? desc->log2_chroma_h : 0;
rav1e_frame_extract_plane(rpkt->rec, i, frame->data[i],
(frame->height >> shift) * frame->linesize[i],
frame->linesize[i], desc->comp[i].step);
}
}
rav1e_packet_unref(rpkt);
return 0;
}
#define OFFSET(x) offsetof(librav1eContext, x)
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
{ "qp", "use constant quantizer mode", OFFSET(quantizer), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 255, VE },
{ "speed", "what speed preset to use", OFFSET(speed), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 10, VE },
{ "tiles", "number of tiles encode with", OFFSET(tiles), AV_OPT_TYPE_INT, { .i64 = 0 }, -1, INT64_MAX, VE },
{ "tile-rows", "number of tiles rows to encode with", OFFSET(tile_rows), AV_OPT_TYPE_INT, { .i64 = 0 }, -1, INT64_MAX, VE },
{ "tile-columns", "number of tiles columns to encode with", OFFSET(tile_cols), AV_OPT_TYPE_INT, { .i64 = 0 }, -1, INT64_MAX, VE },
{ "rav1e-params", "set the rav1e configuration using a :-separated list of key=value parameters", OFFSET(rav1e_opts), AV_OPT_TYPE_DICT, { 0 }, 0, 0, VE },
{ NULL }
};
static const FFCodecDefault librav1e_defaults[] = {
{ "b", "0" },
{ "g", "0" },
{ "keyint_min", "0" },
{ "qmax", "-1" },
{ "qmin", "-1" },
{ NULL }
};
const enum AVPixelFormat librav1e_pix_fmts[] = {
AV_PIX_FMT_YUV420P,
AV_PIX_FMT_YUVJ420P,
AV_PIX_FMT_YUV420P10,
AV_PIX_FMT_YUV420P12,
AV_PIX_FMT_YUV422P,
AV_PIX_FMT_YUVJ422P,
AV_PIX_FMT_YUV422P10,
AV_PIX_FMT_YUV422P12,
AV_PIX_FMT_YUV444P,
AV_PIX_FMT_YUVJ444P,
AV_PIX_FMT_YUV444P10,
AV_PIX_FMT_YUV444P12,
AV_PIX_FMT_NONE
};
static const AVClass class = {
.class_name = "librav1e",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
const FFCodec ff_librav1e_encoder = {
.p.name = "librav1e",
CODEC_LONG_NAME("librav1e AV1"),
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_AV1,
.init = librav1e_encode_init,
FF_CODEC_RECEIVE_PACKET_CB(librav1e_receive_packet),
.close = librav1e_encode_close,
.priv_data_size = sizeof(librav1eContext),
.p.priv_class = &class,
.defaults = librav1e_defaults,
.p.pix_fmts = librav1e_pix_fmts,
.p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_OTHER_THREADS |
AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_RECON_FRAME |
AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
.caps_internal = FF_CODEC_CAP_NOT_INIT_THREADSAFE |
FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_AUTO_THREADS,
.p.wrapper_name = "librav1e",
};