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_VAAPI_H
20#define AVUTIL_HWCONTEXT_VAAPI_H
21
22#include <va/va.h>
23
24/**
25 * @file
26 * API-specific header for AV_HWDEVICE_TYPE_VAAPI.
27 *
28 * Dynamic frame pools are supported, but note that any pool used as a render
29 * target is required to be of fixed size in order to be be usable as an
30 * argument to vaCreateContext().
31 *
32 * For user-allocated pools, AVHWFramesContext.pool must return AVBufferRefs
33 * with the data pointer set to a VASurfaceID.
34 */
35
36enum {
37 /**
38 * The quirks field has been set by the user and should not be detected
39 * automatically by av_hwdevice_ctx_init().
40 */
41 AV_VAAPI_DRIVER_QUIRK_USER_SET = (1 << 0),
42 /**
43 * The driver does not destroy parameter buffers when they are used by
44 * vaRenderPicture(). Additional code will be required to destroy them
45 * separately afterwards.
46 */
47 AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS = (1 << 1),
48
49 /**
50 * The driver does not support the VASurfaceAttribMemoryType attribute,
51 * so the surface allocation code will not try to use it.
52 */
53 AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE = (1 << 2),
54
55 /**
56 * The driver does not support surface attributes at all.
57 * The surface allocation code will never pass them to surface allocation,
58 * and the results of the vaQuerySurfaceAttributes() call will be faked.
59 */
60 AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES = (1 << 3),
61};
62
63/**
64 * VAAPI connection details.
65 *
66 * Allocated as AVHWDeviceContext.hwctx
67 */
68typedef struct AVVAAPIDeviceContext {
69 /**
70 * The VADisplay handle, to be filled by the user.
71 */
72 VADisplay display;
73 /**
74 * Driver quirks to apply - this is filled by av_hwdevice_ctx_init(),
75 * with reference to a table of known drivers, unless the
76 * AV_VAAPI_DRIVER_QUIRK_USER_SET bit is already present. The user
77 * may need to refer to this field when performing any later
78 * operations using VAAPI with the same VADisplay.
79 */
80 unsigned int driver_quirks;
81} AVVAAPIDeviceContext;
82
83/**
84 * VAAPI-specific data associated with a frame pool.
85 *
86 * Allocated as AVHWFramesContext.hwctx.
87 */
88typedef struct AVVAAPIFramesContext {
89 /**
90 * Set by the user to apply surface attributes to all surfaces in
91 * the frame pool. If null, default settings are used.
92 */
93 VASurfaceAttrib *attributes;
94 int nb_attributes;
95 /**
96 * The surfaces IDs of all surfaces in the pool after creation.
97 * Only valid if AVHWFramesContext.initial_pool_size was positive.
98 * These are intended to be used as the render_targets arguments to
99 * vaCreateContext().
100 */
101 VASurfaceID *surface_ids;
102 int nb_surfaces;
103} AVVAAPIFramesContext;
104
105/**
106 * VAAPI hardware pipeline configuration details.
107 *
108 * Allocated with av_hwdevice_hwconfig_alloc().
109 */
110typedef struct AVVAAPIHWConfig {
111 /**
112 * ID of a VAAPI pipeline configuration.
113 */
114 VAConfigID config_id;
115} AVVAAPIHWConfig;
116
117#endif /* AVUTIL_HWCONTEXT_VAAPI_H */
118

source code of include/x86_64-linux-gnu/libavutil/hwcontext_vaapi.h