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lavc: add Intel libmfx-based MPEG2 encoder
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/* | ||
* Intel MediaSDK QSV based MPEG-2 encoder | ||
* | ||
* This file is part of Libav. | ||
* | ||
* Libav 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. | ||
* | ||
* Libav 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 Libav; if not, write to the Free Software | ||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
*/ | ||
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#include <stdint.h> | ||
#include <sys/types.h> | ||
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#include <mfx/mfxvideo.h> | ||
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#include "libavutil/common.h" | ||
#include "libavutil/opt.h" | ||
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#include "avcodec.h" | ||
#include "internal.h" | ||
#include "qsv.h" | ||
#include "qsv_internal.h" | ||
#include "qsvenc.h" | ||
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typedef struct QSVMpeg2EncContext { | ||
AVClass *class; | ||
QSVEncContext qsv; | ||
} QSVMpeg2EncContext; | ||
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static av_cold int qsv_enc_init(AVCodecContext *avctx) | ||
{ | ||
QSVMpeg2EncContext *q = avctx->priv_data; | ||
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return ff_qsv_enc_init(avctx, &q->qsv); | ||
} | ||
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static int qsv_enc_frame(AVCodecContext *avctx, AVPacket *pkt, | ||
const AVFrame *frame, int *got_packet) | ||
{ | ||
QSVMpeg2EncContext *q = avctx->priv_data; | ||
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return ff_qsv_encode(avctx, &q->qsv, pkt, frame, got_packet); | ||
} | ||
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static av_cold int qsv_enc_close(AVCodecContext *avctx) | ||
{ | ||
QSVMpeg2EncContext *q = avctx->priv_data; | ||
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return ff_qsv_enc_close(avctx, &q->qsv); | ||
} | ||
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#define OFFSET(x) offsetof(QSVMpeg2EncContext, x) | ||
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM | ||
static const AVOption options[] = { | ||
{ "async_depth", "Maximum processing parallelism", OFFSET(qsv.async_depth), AV_OPT_TYPE_INT, { .i64 = ASYNC_DEPTH_DEFAULT }, 0, INT_MAX, VE }, | ||
{ "avbr_accuracy", "Accuracy of the AVBR ratecontrol", OFFSET(qsv.avbr_accuracy), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE }, | ||
{ "avbr_convergence", "Convergence of the AVBR ratecontrol", OFFSET(qsv.avbr_convergence), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE }, | ||
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{ "profile", NULL, OFFSET(qsv.profile), AV_OPT_TYPE_INT, { .i64 = MFX_PROFILE_UNKNOWN }, 0, INT_MAX, VE, "profile" }, | ||
{ "unknown", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, VE, "profile" }, | ||
{ "simple", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_MPEG2_SIMPLE }, INT_MIN, INT_MAX, VE, "profile" }, | ||
{ "main", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_MPEG2_MAIN }, INT_MIN, INT_MAX, VE, "profile" }, | ||
{ "high", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_MPEG2_HIGH }, INT_MIN, INT_MAX, VE, "profile" }, | ||
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{ "preset", NULL, OFFSET(qsv.preset), AV_OPT_TYPE_INT, { .i64 = MFX_TARGETUSAGE_BALANCED }, 0, 7, VE, "preset" }, | ||
{ "fast", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BEST_SPEED }, INT_MIN, INT_MAX, VE, "preset" }, | ||
{ "medium", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BALANCED }, INT_MIN, INT_MAX, VE, "preset" }, | ||
{ "slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TARGETUSAGE_BEST_QUALITY }, INT_MIN, INT_MAX, VE, "preset" }, | ||
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{ NULL }, | ||
}; | ||
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static const AVClass class = { | ||
.class_name = "mpeg2_qsv encoder", | ||
.item_name = av_default_item_name, | ||
.option = options, | ||
.version = LIBAVUTIL_VERSION_INT, | ||
}; | ||
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static const AVCodecDefault qsv_enc_defaults[] = { | ||
{ "b", "1M" }, | ||
{ "refs", "0" }, | ||
// same as the x264 default | ||
{ "g", "250" }, | ||
{ "bf", "3" }, | ||
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{ "flags", "+cgop" }, | ||
{ NULL }, | ||
}; | ||
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AVCodec ff_mpeg2_qsv_encoder = { | ||
.name = "mpeg2_qsv", | ||
.long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video (Intel Quick Sync Video acceleration)"), | ||
.priv_data_size = sizeof(QSVMpeg2EncContext), | ||
.type = AVMEDIA_TYPE_VIDEO, | ||
.id = AV_CODEC_ID_MPEG2VIDEO, | ||
.init = qsv_enc_init, | ||
.encode2 = qsv_enc_frame, | ||
.close = qsv_enc_close, | ||
.capabilities = CODEC_CAP_DELAY, | ||
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12, | ||
AV_PIX_FMT_QSV, | ||
AV_PIX_FMT_NONE }, | ||
.priv_class = &class, | ||
.defaults = qsv_enc_defaults, | ||
}; |