FFmpeg
cuda_check.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_CUDA_CHECK_H
21 #define AVUTIL_CUDA_CHECK_H
22 
23 typedef CUresult CUDAAPI cuda_check_GetErrorName(CUresult error, const char** pstr);
24 typedef CUresult CUDAAPI cuda_check_GetErrorString(CUresult error, const char** pstr);
25 
26 /**
27  * Wrap a CUDA function call and print error information if it fails.
28  */
29 static inline int ff_cuda_check(void *avctx,
30  void *cuGetErrorName_fn, void *cuGetErrorString_fn,
31  CUresult err, const char *func)
32 {
33  const char *err_name;
34  const char *err_string;
35 
36  av_log(avctx, AV_LOG_TRACE, "Calling %s\n", func);
37 
38  if (err == CUDA_SUCCESS)
39  return 0;
40 
41  ((cuda_check_GetErrorName *)cuGetErrorName_fn)(err, &err_name);
42  ((cuda_check_GetErrorString *)cuGetErrorString_fn)(err, &err_string);
43 
44  av_log(avctx, AV_LOG_ERROR, "%s failed", func);
45  if (err_name && err_string)
46  av_log(avctx, AV_LOG_ERROR, " -> %s: %s", err_name, err_string);
47  av_log(avctx, AV_LOG_ERROR, "\n");
48 
49  return AVERROR_EXTERNAL;
50 }
51 
52 /**
53  * Convenience wrapper for ff_cuda_check when directly linking libcuda.
54  */
55 
56 #define FF_CUDA_CHECK(avclass, x) ff_cuda_check(avclass, cuGetErrorName, cuGetErrorString, (x), #x)
57 
58 /**
59  * Convenience wrapper for ff_cuda_check when dynamically loading cuda symbols.
60  */
61 
62 #define FF_CUDA_CHECK_DL(avclass, cudl, x) ff_cuda_check(avclass, cudl->cuGetErrorName, cudl->cuGetErrorString, (x), #x)
63 
64 #endif /* AVUTIL_CUDA_CHECK_H */
CUresult CUDAAPI cuda_check_GetErrorName(CUresult error, const char **pstr)
Definition: cuda_check.h:23
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
Definition: log.h:202
#define av_log(a,...)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
static void error(const char *err)
CUresult CUDAAPI cuda_check_GetErrorString(CUresult error, const char **pstr)
Definition: cuda_check.h:24
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition: jacosubdec.c:67
static int ff_cuda_check(void *avctx, void *cuGetErrorName_fn, void *cuGetErrorString_fn, CUresult err, const char *func)
Wrap a CUDA function call and print error information if it fails.
Definition: cuda_check.h:29
#define AVERROR_EXTERNAL
Generic error in an external library.
Definition: error.h:57