2 * This file is part of Libav.
4 * Libav 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.
9 * Libav 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.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with Libav; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 #ifndef AVUTIL_HWCONTEXT_VAAPI_H
20 #define AVUTIL_HWCONTEXT_VAAPI_H
26 * API-specific header for AV_HWDEVICE_TYPE_VAAPI.
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().
32 * For user-allocated pools, AVHWFramesContext.pool must return AVBufferRefs
33 * with the data pointer set to a VASurfaceID.
38 * The quirks field has been set by the user and should not be detected
39 * automatically by av_hwdevice_ctx_init().
41 AV_VAAPI_DRIVER_QUIRK_USER_SET = (1 << 0),
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.
47 AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS = (1 << 1),
51 * VAAPI connection details.
53 * Allocated as AVHWDeviceContext.hwctx
55 typedef struct AVVAAPIDeviceContext {
57 * The VADisplay handle, to be filled by the user.
61 * Driver quirks to apply - this is filled by av_hwdevice_ctx_init(),
62 * with reference to a table of known drivers, unless the
63 * AV_VAAPI_DRIVER_QUIRK_USER_SET bit is already present. The user
64 * may need to refer to this field when performing any later
65 * operations using VAAPI with the same VADisplay.
67 unsigned int driver_quirks;
68 } AVVAAPIDeviceContext;
71 * VAAPI-specific data associated with a frame pool.
73 * Allocated as AVHWFramesContext.hwctx.
75 typedef struct AVVAAPIFramesContext {
77 * Set by the user to apply surface attributes to all surfaces in
78 * the frame pool. If null, default settings are used.
80 VASurfaceAttrib *attributes;
83 * The surfaces IDs of all surfaces in the pool after creation.
84 * Only valid if AVHWFramesContext.initial_pool_size was positive.
85 * These are intended to be used as the render_targets arguments to
88 VASurfaceID *surface_ids;
90 } AVVAAPIFramesContext;
93 * VAAPI hardware pipeline configuration details.
95 * Allocated with av_hwdevice_hwconfig_alloc().
97 typedef struct AVVAAPIHWConfig {
99 * ID of a VAAPI pipeline configuration.
101 VAConfigID config_id;
104 #endif /* AVUTIL_HWCONTEXT_VAAPI_H */