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 /**
49  * This structure is used to provides the necessary configurations and data
50  * to the Direct3D11 FFmpeg HWAccel implementation.
51  *
52  * The application must make it available as AVCodecContext.hwaccel_context.
53  *
54  * Use av_d3d11va_alloc_context() exclusively to allocate an AVD3D11VAContext.
55  */
56 typedef struct AVD3D11VAContext {
57  /**
58  * D3D11 decoder object
59  */
60  ID3D11VideoDecoder *decoder;
61 
62  /**
63  * D3D11 VideoContext
64  */
65  ID3D11VideoContext *video_context;
66 
67  /**
68  * D3D11 configuration used to create the decoder
69  */
70  D3D11_VIDEO_DECODER_CONFIG *cfg;
71 
72  /**
73  * The number of surface in the surface array
74  */
75  unsigned surface_count;
76 
77  /**
78  * The array of Direct3D surfaces used to create the decoder
79  */
80  ID3D11VideoDecoderOutputView **surface;
81 
82  /**
83  * A bit field configuring the workarounds needed for using the decoder
84  */
85  uint64_t workaround;
86 
87  /**
88  * Private to the FFmpeg AVHWAccel implementation
89  */
90  unsigned report_id;
91 
92  /**
93  * Mutex to access video_context
94  */
95  HANDLE context_mutex;
97 
98 /**
99  * Allocate an AVD3D11VAContext.
100  *
101  * @return Newly-allocated AVD3D11VAContext or NULL on failure.
102  */
104 
105 /**
106  * @}
107  */
108 
109 #endif /* AVCODEC_D3D11VA_H */
AVD3D11VAContext::decoder
ID3D11VideoDecoder * decoder
D3D11 decoder object.
Definition: d3d11va.h:60
AVD3D11VAContext
This structure is used to provides the necessary configurations and data to the Direct3D11 FFmpeg HWA...
Definition: d3d11va.h:56
AVD3D11VAContext::context_mutex
HANDLE context_mutex
Mutex to access video_context.
Definition: d3d11va.h:95
AVD3D11VAContext::cfg
D3D11_VIDEO_DECODER_CONFIG * cfg
D3D11 configuration used to create the decoder.
Definition: d3d11va.h:70
AVD3D11VAContext::surface_count
unsigned surface_count
The number of surface in the surface array.
Definition: d3d11va.h:75
AVD3D11VAContext::video_context
ID3D11VideoContext * video_context
D3D11 VideoContext.
Definition: d3d11va.h:65
av_d3d11va_alloc_context
AVD3D11VAContext * av_d3d11va_alloc_context(void)
Allocate an AVD3D11VAContext.
Definition: d3d11va.c:44
AVD3D11VAContext::workaround
uint64_t workaround
A bit field configuring the workarounds needed for using the decoder.
Definition: d3d11va.h:85
AVD3D11VAContext::report_id
unsigned report_id
Private to the FFmpeg AVHWAccel implementation.
Definition: d3d11va.h:90
AVD3D11VAContext::surface
ID3D11VideoDecoderOutputView ** surface
The array of Direct3D surfaces used to create the decoder.
Definition: d3d11va.h:80