mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-03-03 14:32:16 +02:00
8a129077cc
AV_CODEC_CAP_AUTO_THREADS was originally added in b4d44a45f9a to mark codecs that spawn threads internally and are able to select an optimal threads count by themselves (all such codecs are wrappers around external libraries). It is used by lavc generic code to check whether it should handle thread_count=0 itself or pass the zero directly to the codec implementation. Within this meaning, it is clearly supposed to be an internal cap rather than a public one, since from the viewpoint of a libavcodec user, lavc ALWAYS handles thread_count=0. Whether it happens in the generic code or within the codec internals is not a meaningful difference for the caller. External aspects of this flag will be dealt with in the following commit.
305 lines
10 KiB
C
305 lines
10 KiB
C
/*
|
|
* AVS2 encoding using the xavs2 library
|
|
*
|
|
* Copyright (C) 2018 Yiqun Xu, <yiqun.xu@vipl.ict.ac.cn>
|
|
* Falei Luo, <falei.luo@gmail.com>
|
|
* Huiwen Ren, <hwrenx@gmail.com>
|
|
*
|
|
* 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 "xavs2.h"
|
|
#include "mpeg12.h"
|
|
#include "libavutil/avstring.h"
|
|
|
|
#define xavs2_opt_set2(name, format, ...) do{ \
|
|
char opt_str[16] = {0}; \
|
|
int err; \
|
|
av_strlcatf(opt_str, sizeof(opt_str), format, __VA_ARGS__); \
|
|
err = cae->api->opt_set2(cae->param, name, opt_str); \
|
|
if (err < 0) {\
|
|
av_log(avctx, AV_LOG_WARNING, "Invalid value for %s: %s\n", name, opt_str);\
|
|
}\
|
|
} while(0);
|
|
|
|
typedef struct XAVS2EContext {
|
|
AVClass *class;
|
|
|
|
int lcu_row_threads;
|
|
int initial_qp;
|
|
int qp;
|
|
int max_qp;
|
|
int min_qp;
|
|
int preset_level;
|
|
int log_level;
|
|
|
|
void *encoder;
|
|
AVDictionary *xavs2_opts;
|
|
|
|
xavs2_outpacket_t packet;
|
|
xavs2_param_t *param;
|
|
|
|
const xavs2_api_t *api;
|
|
|
|
} XAVS2EContext;
|
|
|
|
static av_cold int xavs2_init(AVCodecContext *avctx)
|
|
{
|
|
XAVS2EContext *cae = avctx->priv_data;
|
|
int bit_depth, code;
|
|
|
|
bit_depth = avctx->pix_fmt == AV_PIX_FMT_YUV420P ? 8 : 10;
|
|
|
|
/* get API handler */
|
|
cae->api = xavs2_api_get(bit_depth);
|
|
if (!cae->api) {
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to get xavs2 api context\n");
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
|
|
cae->param = cae->api->opt_alloc();
|
|
if (!cae->param) {
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to alloc xavs2 parameters\n");
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
xavs2_opt_set2("Width", "%d", avctx->width);
|
|
xavs2_opt_set2("Height", "%d", avctx->height);
|
|
xavs2_opt_set2("BFrames", "%d", avctx->max_b_frames);
|
|
xavs2_opt_set2("BitDepth", "%d", bit_depth);
|
|
xavs2_opt_set2("Log", "%d", cae->log_level);
|
|
xavs2_opt_set2("Preset", "%d", cae->preset_level);
|
|
|
|
xavs2_opt_set2("IntraPeriodMax", "%d", avctx->gop_size);
|
|
xavs2_opt_set2("IntraPeriodMin", "%d", avctx->gop_size);
|
|
|
|
xavs2_opt_set2("ThreadFrames", "%d", avctx->thread_count);
|
|
xavs2_opt_set2("ThreadRows", "%d", cae->lcu_row_threads);
|
|
|
|
xavs2_opt_set2("OpenGOP", "%d", !(avctx->flags & AV_CODEC_FLAG_CLOSED_GOP));
|
|
|
|
{
|
|
AVDictionaryEntry *en = NULL;
|
|
while ((en = av_dict_get(cae->xavs2_opts, "", en, AV_DICT_IGNORE_SUFFIX)))
|
|
xavs2_opt_set2(en->key, "%s", en->value);
|
|
}
|
|
|
|
/* Rate control */
|
|
if (avctx->bit_rate > 0) {
|
|
xavs2_opt_set2("RateControl", "%d", 1);
|
|
xavs2_opt_set2("TargetBitRate", "%"PRId64"", avctx->bit_rate);
|
|
xavs2_opt_set2("InitialQP", "%d", cae->initial_qp);
|
|
xavs2_opt_set2("MaxQP", "%d", avctx->qmax >= 0 ? avctx->qmax : cae->max_qp);
|
|
xavs2_opt_set2("MinQP", "%d", avctx->qmin >= 0 ? avctx->qmin : cae->min_qp);
|
|
} else {
|
|
xavs2_opt_set2("InitialQP", "%d", cae->qp);
|
|
}
|
|
|
|
ff_mpeg12_find_best_frame_rate(avctx->framerate, &code, NULL, NULL, 0);
|
|
xavs2_opt_set2("FrameRate", "%d", code);
|
|
|
|
cae->encoder = cae->api->encoder_create(cae->param);
|
|
|
|
if (!cae->encoder) {
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to create xavs2 encoder instance.\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void xavs2_copy_frame_with_shift(xavs2_picture_t *pic, const AVFrame *frame, const int shift_in)
|
|
{
|
|
uint16_t *p_plane;
|
|
uint8_t *p_buffer;
|
|
int plane;
|
|
int hIdx;
|
|
int wIdx;
|
|
|
|
for (plane = 0; plane < 3; plane++) {
|
|
p_plane = (uint16_t *)pic->img.img_planes[plane];
|
|
p_buffer = frame->data[plane];
|
|
for (hIdx = 0; hIdx < pic->img.i_lines[plane]; hIdx++) {
|
|
memset(p_plane, 0, pic->img.i_stride[plane]);
|
|
for (wIdx = 0; wIdx < pic->img.i_width[plane]; wIdx++) {
|
|
p_plane[wIdx] = p_buffer[wIdx] << shift_in;
|
|
}
|
|
p_plane += pic->img.i_stride[plane];
|
|
p_buffer += frame->linesize[plane];
|
|
}
|
|
}
|
|
}
|
|
|
|
static void xavs2_copy_frame(xavs2_picture_t *pic, const AVFrame *frame)
|
|
{
|
|
uint8_t *p_plane;
|
|
uint8_t *p_buffer;
|
|
int plane;
|
|
int hIdx;
|
|
int stride;
|
|
|
|
for (plane = 0; plane < 3; plane++) {
|
|
p_plane = pic->img.img_planes[plane];
|
|
p_buffer = frame->data[plane];
|
|
stride = pic->img.i_width[plane] * pic->img.in_sample_size;
|
|
for (hIdx = 0; hIdx < pic->img.i_lines[plane]; hIdx++) {
|
|
memcpy(p_plane, p_buffer, stride);
|
|
p_plane += pic->img.i_stride[plane];
|
|
p_buffer += frame->linesize[plane];
|
|
}
|
|
}
|
|
}
|
|
|
|
static int xavs2_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
|
|
const AVFrame *frame, int *got_packet)
|
|
{
|
|
XAVS2EContext *cae = avctx->priv_data;
|
|
xavs2_picture_t pic;
|
|
int ret;
|
|
|
|
/* create the XAVS2 video encoder */
|
|
/* read frame data and send to the XAVS2 video encoder */
|
|
if (cae->api->encoder_get_buffer(cae->encoder, &pic) < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to get xavs2 frame buffer\n");
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
if (frame) {
|
|
switch (frame->format) {
|
|
case AV_PIX_FMT_YUV420P:
|
|
if (pic.img.in_sample_size == pic.img.enc_sample_size) {
|
|
xavs2_copy_frame(&pic, frame);
|
|
} else {
|
|
const int shift_in = atoi(cae->api->opt_get(cae->param, "SampleShift"));
|
|
xavs2_copy_frame_with_shift(&pic, frame, shift_in);
|
|
}
|
|
break;
|
|
case AV_PIX_FMT_YUV420P10:
|
|
if (pic.img.in_sample_size == pic.img.enc_sample_size) {
|
|
xavs2_copy_frame(&pic, frame);
|
|
break;
|
|
}
|
|
default:
|
|
av_log(avctx, AV_LOG_ERROR, "Unsupported pixel format\n");
|
|
return AVERROR(EINVAL);
|
|
break;
|
|
}
|
|
|
|
pic.i_state = 0;
|
|
pic.i_pts = frame->pts;
|
|
pic.i_type = XAVS2_TYPE_AUTO;
|
|
|
|
ret = cae->api->encoder_encode(cae->encoder, &pic, &cae->packet);
|
|
|
|
if (ret) {
|
|
av_log(avctx, AV_LOG_ERROR, "Encoding error occured.\n");
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
|
|
} else {
|
|
cae->api->encoder_encode(cae->encoder, NULL, &cae->packet);
|
|
}
|
|
|
|
if ((cae->packet.len) && (cae->packet.state != XAVS2_STATE_FLUSH_END)) {
|
|
if (av_new_packet(pkt, cae->packet.len) < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Failed to alloc xavs2 packet.\n");
|
|
cae->api->encoder_packet_unref(cae->encoder, &cae->packet);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
pkt->pts = cae->packet.pts;
|
|
pkt->dts = cae->packet.dts;
|
|
|
|
if (cae->packet.type == XAVS2_TYPE_IDR ||
|
|
cae->packet.type == XAVS2_TYPE_I ||
|
|
cae->packet.type == XAVS2_TYPE_KEYFRAME) {
|
|
pkt->flags |= AV_PKT_FLAG_KEY;
|
|
}
|
|
|
|
memcpy(pkt->data, cae->packet.stream, cae->packet.len);
|
|
pkt->size = cae->packet.len;
|
|
|
|
cae->api->encoder_packet_unref(cae->encoder, &cae->packet);
|
|
|
|
*got_packet = 1;
|
|
} else {
|
|
*got_packet = 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static av_cold int xavs2_close(AVCodecContext *avctx)
|
|
{
|
|
XAVS2EContext *cae = avctx->priv_data;
|
|
/* destroy the encoder */
|
|
if (cae->api) {
|
|
cae->api->encoder_destroy(cae->encoder);
|
|
|
|
if (cae->param) {
|
|
cae->api->opt_destroy(cae->param);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(XAVS2EContext, x)
|
|
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
|
|
|
|
static const AVOption options[] = {
|
|
{ "lcu_row_threads" , "number of parallel threads for rows" , OFFSET(lcu_row_threads) , AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, VE },
|
|
{ "initial_qp" , "Quantization initial parameter" , OFFSET(initial_qp) , AV_OPT_TYPE_INT, {.i64 = 34 }, 1, 63, VE },
|
|
{ "qp" , "Quantization parameter" , OFFSET(qp) , AV_OPT_TYPE_INT, {.i64 = 34 }, 1, 63, VE },
|
|
{ "max_qp" , "max qp for rate control" , OFFSET(max_qp) , AV_OPT_TYPE_INT, {.i64 = 55 }, 0, 63, VE },
|
|
{ "min_qp" , "min qp for rate control" , OFFSET(min_qp) , AV_OPT_TYPE_INT, {.i64 = 20 }, 0, 63, VE },
|
|
{ "speed_level" , "Speed level, higher is better but slower", OFFSET(preset_level) , AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 9, VE },
|
|
{ "log_level" , "log level: -1: none, 0: error, 1: warning, 2: info, 3: debug", OFFSET(log_level) , AV_OPT_TYPE_INT, {.i64 = 0 }, -1, 3, VE },
|
|
{ "xavs2-params" , "set the xavs2 configuration using a :-separated list of key=value parameters", OFFSET(xavs2_opts), AV_OPT_TYPE_DICT, { 0 }, 0, 0, VE },
|
|
{ NULL },
|
|
};
|
|
|
|
static const AVClass libxavs2 = {
|
|
.class_name = "XAVS2EContext",
|
|
.item_name = av_default_item_name,
|
|
.option = options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
static const AVCodecDefault xavs2_defaults[] = {
|
|
{ "b", "0" },
|
|
{ "g", "48"},
|
|
{ "bf", "7" },
|
|
{ NULL },
|
|
};
|
|
|
|
AVCodec ff_libxavs2_encoder = {
|
|
.name = "libxavs2",
|
|
.long_name = NULL_IF_CONFIG_SMALL("libxavs2 AVS2-P2/IEEE1857.4"),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_AVS2,
|
|
.priv_data_size = sizeof(XAVS2EContext),
|
|
.init = xavs2_init,
|
|
.encode2 = xavs2_encode_frame,
|
|
.close = xavs2_close,
|
|
.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AUTO_THREADS,
|
|
.caps_internal = FF_CODEC_CAP_AUTO_THREADS,
|
|
.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV420P,
|
|
AV_PIX_FMT_NONE },
|
|
.priv_class = &libxavs2,
|
|
.defaults = xavs2_defaults,
|
|
.wrapper_name = "libxavs2",
|
|
} ;
|