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dxva2.h
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1 /*
2  * DXVA2 HW acceleration
3  *
4  * copyright (c) 2009 Laurent Aimar
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #ifndef AVCODEC_DXVA_H
24 #define AVCODEC_DXVA_H
25 
26 /**
27  * @file
28  * @ingroup lavc_codec_hwaccel_dxva2
29  * Public libavcodec DXVA2 header.
30  */
31 
32 #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0600
33 #undef _WIN32_WINNT
34 #endif
35 
36 #if !defined(_WIN32_WINNT)
37 #define _WIN32_WINNT 0x0600
38 #endif
39 
40 #include <stdint.h>
41 #include <d3d9.h>
42 #include <dxva2api.h>
43 
44 /**
45  * @defgroup lavc_codec_hwaccel_dxva2 DXVA2
46  * @ingroup lavc_codec_hwaccel
47  *
48  * @{
49  */
50 
51 #define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for DXVA2 and old UVD/UVD+ ATI video cards
52 
53 /**
54  * This structure is used to provides the necessary configurations and data
55  * to the DXVA2 FFmpeg HWAccel implementation.
56  *
57  * The application must make it available as AVCodecContext.hwaccel_context.
58  */
59 struct dxva_context {
60  /**
61  * DXVA2 decoder object
62  */
63  IDirectXVideoDecoder *decoder;
64 
65  /**
66  * DXVA2 configuration used to create the decoder
67  */
68  const DXVA2_ConfigPictureDecode *cfg;
69 
70  /**
71  * The number of surface in the surface array
72  */
73  unsigned surface_count;
74 
75  /**
76  * The array of Direct3D surfaces used to create the decoder
77  */
78  LPDIRECT3DSURFACE9 *surface;
79 
80  /**
81  * A bit field configuring the workarounds needed for using the decoder
82  */
83  uint64_t workaround;
84 
85  /**
86  * Private to the FFmpeg AVHWAccel implementation
87  */
88  unsigned report_id;
89 };
90 
91 /**
92  * @}
93  */
94 
95 #endif /* AVCODEC_DXVA_H */