FFmpeg
d3d11va.c
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1 /*
2  * Direct3D11 HW acceleration
3  *
4  * copyright (c) 2015 Steve Lhomme
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 #include <stddef.h>
24 
25 #include "config.h"
26 
27 #if CONFIG_D3D11VA
28 #include "libavutil/error.h"
29 #include "libavutil/mem.h"
30 
31 #include "d3d11va.h"
32 
34 {
36  if (!res)
37  return NULL;
39  return res;
40 }
41 #else
43 
45 {
46  return NULL;
47 }
48 #endif /* CONFIG_D3D11VA */
#define NULL
Definition: coverity.c:32
This structure is used to provides the necessary configurations and data to the Direct3D11 FFmpeg HWA...
Definition: d3d11va.h:59
Memory handling functions.
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:236
Public libavcodec D3D11VA header.
HANDLE context_mutex
Mutex to access video_context.
Definition: d3d11va.h:98
error code definitions
struct AVD3D11VAContext * av_d3d11va_alloc_context(void)
Allocate an AVD3D11VAContext.
Definition: d3d11va.c:44
#define INVALID_HANDLE_VALUE
Definition: windows2linux.h:47