FFmpeg
hwcontext_cuda.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg 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.
8  *
9  * FFmpeg 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.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 
20 #ifndef AVUTIL_HWCONTEXT_CUDA_H
21 #define AVUTIL_HWCONTEXT_CUDA_H
22 
23 #ifndef CUDA_VERSION
24 #include <cuda.h>
25 #endif
26 
27 #include "pixfmt.h"
28 
29 /**
30  * @file
31  * An API-specific header for AV_HWDEVICE_TYPE_CUDA.
32  *
33  * This API supports dynamic frame pools. AVHWFramesContext.pool must return
34  * AVBufferRefs whose data pointer is a CUdeviceptr.
35  */
36 
38 
39 /**
40  * This struct is allocated as AVHWDeviceContext.hwctx
41  */
42 typedef struct AVCUDADeviceContext {
43  CUcontext cuda_ctx;
44  CUstream stream;
47 
48 /**
49  * AVHWFramesContext.hwctx is currently not used
50  */
51 
52 /**
53  * @defgroup hwcontext_cuda Device context creation flags
54  *
55  * Flags for av_hwdevice_ctx_create.
56  *
57  * @{
58  */
59 
60 /**
61  * Use primary device context instead of creating a new one.
62  */
63 #define AV_CUDA_USE_PRIMARY_CONTEXT (1 << 0)
64 
65 /**
66  * Use current device context instead of creating a new one.
67  */
68 #define AV_CUDA_USE_CURRENT_CONTEXT (1 << 1)
69 
70 /**
71  * @}
72  */
73 
74 #endif /* AVUTIL_HWCONTEXT_CUDA_H */
AVCUDADeviceContextInternal
Definition: hwcontext_cuda_internal.h:31
AVCUDADeviceContext::cuda_ctx
CUcontext cuda_ctx
Definition: hwcontext_cuda.h:43
AVCUDADeviceContext::stream
CUstream stream
Definition: hwcontext_cuda.h:44
AVCUDADeviceContext
This struct is allocated as AVHWDeviceContext.hwctx.
Definition: hwcontext_cuda.h:42
pixfmt.h