FFmpeg
d3d11va.h
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1 /*
2  * Direct3D11 HW acceleration
3  *
4  * copyright (c) 2009 Laurent Aimar
5  * copyright (c) 2015 Steve Lhomme
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #ifndef AVCODEC_D3D11VA_H
25 #define AVCODEC_D3D11VA_H
26 
27 /**
28  * @file
29  * @ingroup lavc_codec_hwaccel_d3d11va
30  * Public libavcodec D3D11VA header.
31  */
32 
33 #if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0602
34 #undef _WIN32_WINNT
35 #define _WIN32_WINNT 0x0602
36 #endif
37 
38 #include <stdint.h>
39 #include <d3d11.h>
40 
41 /**
42  * @defgroup lavc_codec_hwaccel_d3d11va Direct3D11
43  * @ingroup lavc_codec_hwaccel
44  *
45  * @{
46  */
47 
48 #define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for Direct3D11 and old UVD/UVD+ ATI video cards
49 #define FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO 2 ///< Work around for Direct3D11 and old Intel GPUs with ClearVideo interface
50 
51 /**
52  * This structure is used to provides the necessary configurations and data
53  * to the Direct3D11 FFmpeg HWAccel implementation.
54  *
55  * The application must make it available as AVCodecContext.hwaccel_context.
56  *
57  * Use av_d3d11va_alloc_context() exclusively to allocate an AVD3D11VAContext.
58  */
59 typedef struct AVD3D11VAContext {
60  /**
61  * D3D11 decoder object
62  */
63  ID3D11VideoDecoder *decoder;
64 
65  /**
66  * D3D11 VideoContext
67  */
68  ID3D11VideoContext *video_context;
69 
70  /**
71  * D3D11 configuration used to create the decoder
72  */
73  D3D11_VIDEO_DECODER_CONFIG *cfg;
74 
75  /**
76  * The number of surface in the surface array
77  */
78  unsigned surface_count;
79 
80  /**
81  * The array of Direct3D surfaces used to create the decoder
82  */
83  ID3D11VideoDecoderOutputView **surface;
84 
85  /**
86  * A bit field configuring the workarounds needed for using the decoder
87  */
88  uint64_t workaround;
89 
90  /**
91  * Private to the FFmpeg AVHWAccel implementation
92  */
93  unsigned report_id;
94 
95  /**
96  * Mutex to access video_context
97  */
100 
101 /**
102  * Allocate an AVD3D11VAContext.
103  *
104  * @return Newly-allocated AVD3D11VAContext or NULL on failure.
105  */
107 
108 /**
109  * @}
110  */
111 
112 #endif /* AVCODEC_D3D11VA_H */
This structure is used to provides the necessary configurations and data to the Direct3D11 FFmpeg HWA...
Definition: d3d11va.h:59
HANDLE context_mutex
Mutex to access video_context.
Definition: d3d11va.h:98
ID3D11VideoDecoder * decoder
D3D11 decoder object.
Definition: d3d11va.h:63
D3D11_VIDEO_DECODER_CONFIG * cfg
D3D11 configuration used to create the decoder.
Definition: d3d11va.h:73
PVOID HANDLE
unsigned surface_count
The number of surface in the surface array.
Definition: d3d11va.h:78
ID3D11VideoContext * video_context
D3D11 VideoContext.
Definition: d3d11va.h:68
AVD3D11VAContext * av_d3d11va_alloc_context(void)
Allocate an AVD3D11VAContext.
Definition: d3d11va.c:44
uint64_t workaround
A bit field configuring the workarounds needed for using the decoder.
Definition: d3d11va.h:88
unsigned report_id
Private to the FFmpeg AVHWAccel implementation.
Definition: d3d11va.h:93
ID3D11VideoDecoderOutputView ** surface
The array of Direct3D surfaces used to create the decoder.
Definition: d3d11va.h:83