FFmpeg 7.1.1
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hwcontext_qsv.h
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1/*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19#ifndef AVUTIL_HWCONTEXT_QSV_H
20#define AVUTIL_HWCONTEXT_QSV_H
21
22#include <mfxvideo.h>
23
24/**
25 * @file
26 * An API-specific header for AV_HWDEVICE_TYPE_QSV.
27 *
28 * AVHWFramesContext.pool must contain AVBufferRefs whose data pointer points
29 * to a mfxFrameSurface1 struct.
30 */
31
32/**
33 * This struct is allocated as AVHWDeviceContext.hwctx
34 */
35typedef struct AVQSVDeviceContext {
36 mfxSession session;
37 /**
38 * The mfxLoader handle used for mfxSession creation
39 *
40 * This field is only available for oneVPL user. For non-oneVPL user, this
41 * field must be set to NULL.
42 *
43 * Filled by the user before calling av_hwdevice_ctx_init() and should be
44 * cast to mfxLoader handle. Deallocating the AVHWDeviceContext will always
45 * release this interface.
46 */
47 void *loader;
49
50/**
51 * This struct is allocated as AVHWFramesContext.hwctx
52 */
53typedef struct AVQSVFramesContext {
54 /**
55 * A pointer to a mfxFrameSurface1 struct
56 *
57 * It is available when nb_surfaces is non-zero.
58 */
59 mfxFrameSurface1 *surfaces;
60
61 /**
62 * Number of frames in the pool
63 *
64 * It is 0 for dynamic frame pools or AVHWFramesContext.initial_pool_size
65 * for fixed frame pools.
66 *
67 * Note only oneVPL GPU runtime 2.9+ can support dynamic frame pools
68 * on d3d11va or vaapi
69 */
71
72 /**
73 * A combination of MFX_MEMTYPE_* describing the frame pool.
74 */
76
77 /**
78 * A pointer to a mfxFrameInfo struct
79 *
80 * It is available when nb_surfaces is 0, all buffers allocated from the
81 * pool have the same mfxFrameInfo.
82 */
83 mfxFrameInfo *info;
85
86#endif /* AVUTIL_HWCONTEXT_QSV_H */
87
This struct is allocated as AVHWDeviceContext.hwctx.
void * loader
The mfxLoader handle used for mfxSession creation.
This struct is allocated as AVHWFramesContext.hwctx.
mfxFrameSurface1 * surfaces
A pointer to a mfxFrameSurface1 struct.
int nb_surfaces
Number of frames in the pool.
int frame_type
A combination of MFX_MEMTYPE_* describing the frame pool.
mfxFrameInfo * info
A pointer to a mfxFrameInfo struct.