path: root/libavcodec/qsvenc_mpeg2.c (plain)
blob: 5b583fb4911a3e02b116e34097d3556280164214

1	/*
2	* Intel MediaSDK QSV based MPEG-2 encoder
3	*
4	* This file is part of FFmpeg.
5	*
6	* FFmpeg is free software; you can redistribute it and/or
7	* modify it under the terms of the GNU Lesser General Public
8	* License as published by the Free Software Foundation; either
9	* version 2.1 of the License, or (at your option) any later version.
10	*
11	* FFmpeg is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14	* Lesser General Public License for more details.
15	*
16	* You should have received a copy of the GNU Lesser General Public
17	* License along with FFmpeg; if not, write to the Free Software
18	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19	*/
20
21
22	#include <stdint.h>
23	#include <sys/types.h>
24
25	#include <mfx/mfxvideo.h>
26
27	#include "libavutil/common.h"
28	#include "libavutil/opt.h"
29
30	#include "avcodec.h"
31	#include "internal.h"
32	#include "qsv.h"
33	#include "qsv_internal.h"
34	#include "qsvenc.h"
35
36	typedef struct QSVMpeg2EncContext {
37	AVClass *class;
38	QSVEncContext qsv;
39	} QSVMpeg2EncContext;
40
41	static av_cold int qsv_enc_init(AVCodecContext *avctx)
42	{
43	QSVMpeg2EncContext *q = avctx->priv_data;
44
45	return ff_qsv_enc_init(avctx, &q->qsv);
46	}
47
48	static int qsv_enc_frame(AVCodecContext *avctx, AVPacket *pkt,
49	const AVFrame *frame, int *got_packet)
50	{
51	QSVMpeg2EncContext *q = avctx->priv_data;
52
53	return ff_qsv_encode(avctx, &q->qsv, pkt, frame, got_packet);
54	}
55
56	static av_cold int qsv_enc_close(AVCodecContext *avctx)
57	{
58	QSVMpeg2EncContext *q = avctx->priv_data;
59
60	return ff_qsv_enc_close(avctx, &q->qsv);
61	}
62
63	#define OFFSET(x) offsetof(QSVMpeg2EncContext, x)
64	#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
65	static const AVOption options[] = {
66	QSV_COMMON_OPTS
67
68	{ "profile", NULL, OFFSET(qsv.profile), AV_OPT_TYPE_INT, { .i64 = MFX_PROFILE_UNKNOWN }, 0, INT_MAX, VE, "profile" },
69	{ "unknown", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, VE, "profile" },
70	{ "simple", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_MPEG2_SIMPLE }, INT_MIN, INT_MAX, VE, "profile" },
71	{ "main", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_MPEG2_MAIN }, INT_MIN, INT_MAX, VE, "profile" },
72	{ "high", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_MPEG2_HIGH }, INT_MIN, INT_MAX, VE, "profile" },
73
74	{ NULL },
75	};
76
77	static const AVClass class = {
78	.class_name = "mpeg2_qsv encoder",
79	.item_name = av_default_item_name,
80	.option = options,
81	.version = LIBAVUTIL_VERSION_INT,
82	};
83
84	static const AVCodecDefault qsv_enc_defaults[] = {
85	{ "b", "1M" },
86	{ "refs", "0" },
87	// same as the x264 default
88	{ "g", "250" },
89	{ "bf", "3" },
90
91	{ "flags", "+cgop" },
92	#if FF_API_PRIVATE_OPT
93	{ "b_strategy", "-1" },
94	#endif
95	{ NULL },
96	};
97
98	AVCodec ff_mpeg2_qsv_encoder = {
99	.name = "mpeg2_qsv",
100	.long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video (Intel Quick Sync Video acceleration)"),
101	.priv_data_size = sizeof(QSVMpeg2EncContext),
102	.type = AVMEDIA_TYPE_VIDEO,
103	.id = AV_CODEC_ID_MPEG2VIDEO,
104	.init = qsv_enc_init,
105	.encode2 = qsv_enc_frame,
106	.close = qsv_enc_close,
107	.capabilities = AV_CODEC_CAP_DELAY,
108	.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
109	AV_PIX_FMT_QSV,
110	AV_PIX_FMT_NONE },
111	.priv_class = &class,
112	.defaults = qsv_enc_defaults,
113	.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
114	};
115