lavc: add Intel libmfx-based MPEG2 encoder
[libav.git] / libavcodec / qsv.c
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d0a63d8b
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1/*
2 * Intel MediaSDK QSV encoder/decoder shared code
3 *
4 * This file is part of Libav.
5 *
6 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include <mfx/mfxvideo.h>
22
23#include "libavutil/error.h"
24
25#include "avcodec.h"
26#include "qsv_internal.h"
27
28int ff_qsv_codec_id_to_mfx(enum AVCodecID codec_id)
29{
30 switch (codec_id) {
31 case AV_CODEC_ID_H264:
32 return MFX_CODEC_AVC;
33 case AV_CODEC_ID_MPEG1VIDEO:
34 case AV_CODEC_ID_MPEG2VIDEO:
35 return MFX_CODEC_MPEG2;
36 case AV_CODEC_ID_VC1:
37 return MFX_CODEC_VC1;
38 default:
39 break;
40 }
41
42 return AVERROR(ENOSYS);
43}
44
45int ff_qsv_error(int mfx_err)
46{
47 switch (mfx_err) {
48 case MFX_ERR_NONE:
49 return 0;
50 case MFX_ERR_MEMORY_ALLOC:
51 case MFX_ERR_NOT_ENOUGH_BUFFER:
52 return AVERROR(ENOMEM);
53 case MFX_ERR_INVALID_HANDLE:
54 return AVERROR(EINVAL);
55 case MFX_ERR_DEVICE_FAILED:
56 case MFX_ERR_DEVICE_LOST:
57 case MFX_ERR_LOCK_MEMORY:
58 return AVERROR(EIO);
59 case MFX_ERR_NULL_PTR:
60 case MFX_ERR_UNDEFINED_BEHAVIOR:
61 case MFX_ERR_NOT_INITIALIZED:
62 return AVERROR_BUG;
63 case MFX_ERR_UNSUPPORTED:
64 case MFX_ERR_NOT_FOUND:
65 return AVERROR(ENOSYS);
66 case MFX_ERR_MORE_DATA:
67 case MFX_ERR_MORE_SURFACE:
68 case MFX_ERR_MORE_BITSTREAM:
69 return AVERROR(EAGAIN);
70 case MFX_ERR_INCOMPATIBLE_VIDEO_PARAM:
71 case MFX_ERR_INVALID_VIDEO_PARAM:
72 return AVERROR(EINVAL);
73 case MFX_ERR_ABORTED:
74 case MFX_ERR_UNKNOWN:
75 default:
76 return AVERROR_UNKNOWN;
77 }
78}
79
80int ff_qsv_init_internal_session(AVCodecContext *avctx, mfxSession *session)
81{
82 mfxIMPL impl = MFX_IMPL_AUTO_ANY;
83 mfxVersion ver = { { QSV_VERSION_MINOR, QSV_VERSION_MAJOR } };
84
85 const char *desc;
86 int ret;
87
88 ret = MFXInit(impl, &ver, session);
89 if (ret < 0) {
90 av_log(avctx, AV_LOG_ERROR, "Error initializing an internal MFX session\n");
91 return ff_qsv_error(ret);
92 }
93
94 MFXQueryIMPL(*session, &impl);
95
96 switch (MFX_IMPL_BASETYPE(impl)) {
97 case MFX_IMPL_SOFTWARE:
98 desc = "software";
99 break;
100 case MFX_IMPL_HARDWARE:
101 case MFX_IMPL_HARDWARE2:
102 case MFX_IMPL_HARDWARE3:
103 case MFX_IMPL_HARDWARE4:
104 desc = "hardware accelerated";
105 break;
106 default:
107 desc = "unknown";
108 }
109
110 av_log(avctx, AV_LOG_VERBOSE,
111 "Initialized an internal MFX session using %s implementation\n",
112 desc);
113
114 return 0;
115}