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dynlink_loader.h
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27 
28 #ifndef AV_COMPAT_CUDA_DYNLINK_LOADER_H
29 #define AV_COMPAT_CUDA_DYNLINK_LOADER_H
30 
34 #include "compat/w32dlfcn.h"
35 
36 #include "libavutil/log.h"
37 #include "libavutil/error.h"
38 
39 #if defined(_WIN32)
40 # define LIB_HANDLE HMODULE
41 #else
42 # define LIB_HANDLE void*
43 #endif
44 
45 #if defined(_WIN32) || defined(__CYGWIN__)
46 # define CUDA_LIBNAME "nvcuda.dll"
47 # define NVCUVID_LIBNAME "nvcuvid.dll"
48 # if ARCH_X86_64
49 # define NVENC_LIBNAME "nvEncodeAPI64.dll"
50 # else
51 # define NVENC_LIBNAME "nvEncodeAPI.dll"
52 # endif
53 #else
54 # define CUDA_LIBNAME "libcuda.so.1"
55 # define NVCUVID_LIBNAME "libnvcuvid.so.1"
56 # define NVENC_LIBNAME "libnvidia-encode.so.1"
57 #endif
58 
59 #define LOAD_LIBRARY(l, path) \
60  do { \
61  if (!((l) = dlopen(path, RTLD_LAZY))) { \
62  av_log(logctx, AV_LOG_ERROR, "Cannot load %s\n", path); \
63  ret = AVERROR_UNKNOWN; \
64  goto error; \
65  } \
66  av_log(logctx, AV_LOG_TRACE, "Loaded lib: %s\n", path); \
67  } while (0)
68 
69 #define LOAD_SYMBOL(fun, tp, symbol) \
70  do { \
71  if (!((f->fun) = (tp*)dlsym(f->lib, symbol))) { \
72  av_log(logctx, AV_LOG_ERROR, "Cannot load %s\n", symbol); \
73  ret = AVERROR_UNKNOWN; \
74  goto error; \
75  } \
76  av_log(logctx, AV_LOG_TRACE, "Loaded sym: %s\n", symbol); \
77  } while (0)
78 
79 #define LOAD_SYMBOL_OPT(fun, tp, symbol) \
80  do { \
81  if (!((f->fun) = (tp*)dlsym(f->lib, symbol))) { \
82  av_log(logctx, AV_LOG_DEBUG, "Cannot load optional %s\n", symbol); \
83  } else { \
84  av_log(logctx, AV_LOG_TRACE, "Loaded sym: %s\n", symbol); \
85  } \
86  } while (0)
87 
88 #define GENERIC_LOAD_FUNC_PREAMBLE(T, n, N) \
89  T *f; \
90  int ret; \
91  \
92  n##_free_functions(functions); \
93  \
94  f = *functions = av_mallocz(sizeof(*f)); \
95  if (!f) \
96  return AVERROR(ENOMEM); \
97  \
98  LOAD_LIBRARY(f->lib, N);
99 
100 #define GENERIC_LOAD_FUNC_FINALE(n) \
101  return 0; \
102 error: \
103  n##_free_functions(functions); \
104  return ret;
105 
106 #define GENERIC_FREE_FUNC() \
107  if (!functions) \
108  return; \
109  if (*functions && (*functions)->lib) \
110  dlclose((*functions)->lib); \
111  av_freep(functions);
112 
113 #ifdef AV_COMPAT_DYNLINK_CUDA_H
114 typedef struct CudaFunctions {
129 
131 } CudaFunctions;
132 #else
133 typedef struct CudaFunctions CudaFunctions;
134 #endif
135 
136 typedef struct CuvidFunctions {
147 
158 
161 
164 
165 typedef struct NvencFunctions {
168 
171 
172 #ifdef AV_COMPAT_DYNLINK_CUDA_H
174 {
176 }
177 #endif
178 
180 {
182 }
183 
185 {
187 }
188 
189 #ifdef AV_COMPAT_DYNLINK_CUDA_H
190 static inline int cuda_load_functions(CudaFunctions **functions, void *logctx)
191 {
193 
194  LOAD_SYMBOL(cuInit, tcuInit, "cuInit");
195  LOAD_SYMBOL(cuDeviceGetCount, tcuDeviceGetCount, "cuDeviceGetCount");
196  LOAD_SYMBOL(cuDeviceGet, tcuDeviceGet, "cuDeviceGet");
197  LOAD_SYMBOL(cuDeviceGetName, tcuDeviceGetName, "cuDeviceGetName");
198  LOAD_SYMBOL(cuDeviceComputeCapability, tcuDeviceComputeCapability, "cuDeviceComputeCapability");
199  LOAD_SYMBOL(cuCtxCreate, tcuCtxCreate_v2, "cuCtxCreate_v2");
200  LOAD_SYMBOL(cuCtxPushCurrent, tcuCtxPushCurrent_v2, "cuCtxPushCurrent_v2");
201  LOAD_SYMBOL(cuCtxPopCurrent, tcuCtxPopCurrent_v2, "cuCtxPopCurrent_v2");
202  LOAD_SYMBOL(cuCtxDestroy, tcuCtxDestroy_v2, "cuCtxDestroy_v2");
203  LOAD_SYMBOL(cuMemAlloc, tcuMemAlloc_v2, "cuMemAlloc_v2");
204  LOAD_SYMBOL(cuMemFree, tcuMemFree_v2, "cuMemFree_v2");
205  LOAD_SYMBOL(cuMemcpy2D, tcuMemcpy2D_v2, "cuMemcpy2D_v2");
206  LOAD_SYMBOL(cuGetErrorName, tcuGetErrorName, "cuGetErrorName");
207  LOAD_SYMBOL(cuGetErrorString, tcuGetErrorString, "cuGetErrorString");
208 
210 }
211 #endif
212 
213 static inline int cuvid_load_functions(CuvidFunctions **functions, void *logctx)
214 {
216 
217  LOAD_SYMBOL_OPT(cuvidGetDecoderCaps, tcuvidGetDecoderCaps, "cuvidGetDecoderCaps");
218  LOAD_SYMBOL(cuvidCreateDecoder, tcuvidCreateDecoder, "cuvidCreateDecoder");
219  LOAD_SYMBOL(cuvidDestroyDecoder, tcuvidDestroyDecoder, "cuvidDestroyDecoder");
220  LOAD_SYMBOL(cuvidDecodePicture, tcuvidDecodePicture, "cuvidDecodePicture");
221 #ifdef __CUVID_DEVPTR64
222  LOAD_SYMBOL(cuvidMapVideoFrame, tcuvidMapVideoFrame, "cuvidMapVideoFrame64");
223  LOAD_SYMBOL(cuvidUnmapVideoFrame, tcuvidUnmapVideoFrame, "cuvidUnmapVideoFrame64");
224 #else
225  LOAD_SYMBOL(cuvidMapVideoFrame, tcuvidMapVideoFrame, "cuvidMapVideoFrame");
226  LOAD_SYMBOL(cuvidUnmapVideoFrame, tcuvidUnmapVideoFrame, "cuvidUnmapVideoFrame");
227 #endif
228  LOAD_SYMBOL(cuvidCtxLockCreate, tcuvidCtxLockCreate, "cuvidCtxLockCreate");
229  LOAD_SYMBOL(cuvidCtxLockDestroy, tcuvidCtxLockDestroy, "cuvidCtxLockDestroy");
230  LOAD_SYMBOL(cuvidCtxLock, tcuvidCtxLock, "cuvidCtxLock");
231  LOAD_SYMBOL(cuvidCtxUnlock, tcuvidCtxUnlock, "cuvidCtxUnlock");
232 
233  LOAD_SYMBOL(cuvidCreateVideoSource, tcuvidCreateVideoSource, "cuvidCreateVideoSource");
234  LOAD_SYMBOL(cuvidCreateVideoSourceW, tcuvidCreateVideoSourceW, "cuvidCreateVideoSourceW");
235  LOAD_SYMBOL(cuvidDestroyVideoSource, tcuvidDestroyVideoSource, "cuvidDestroyVideoSource");
236  LOAD_SYMBOL(cuvidSetVideoSourceState, tcuvidSetVideoSourceState, "cuvidSetVideoSourceState");
237  LOAD_SYMBOL(cuvidGetVideoSourceState, tcuvidGetVideoSourceState, "cuvidGetVideoSourceState");
238  LOAD_SYMBOL(cuvidGetSourceVideoFormat, tcuvidGetSourceVideoFormat, "cuvidGetSourceVideoFormat");
239  LOAD_SYMBOL(cuvidGetSourceAudioFormat, tcuvidGetSourceAudioFormat, "cuvidGetSourceAudioFormat");
240  LOAD_SYMBOL(cuvidCreateVideoParser, tcuvidCreateVideoParser, "cuvidCreateVideoParser");
241  LOAD_SYMBOL(cuvidParseVideoData, tcuvidParseVideoData, "cuvidParseVideoData");
242  LOAD_SYMBOL(cuvidDestroyVideoParser, tcuvidDestroyVideoParser, "cuvidDestroyVideoParser");
243 
245 }
246 
247 static inline int nvenc_load_functions(NvencFunctions **functions, void *logctx)
248 {
250 
253 
255 }
256 
257 #undef GENERIC_LOAD_FUNC_PREAMBLE
258 #undef LOAD_LIBRARY
259 #undef LOAD_SYMBOL
260 #undef GENERIC_LOAD_FUNC_FINALE
261 #undef GENERIC_FREE_FUNC
262 #undef CUDA_LIBNAME
263 #undef NVCUVID_LIBNAME
264 #undef NVENC_LIBNAME
265 #undef LIB_HANDLE
266 
267 #endif
268 
tcuvidGetSourceAudioFormat * cuvidGetSourceAudioFormat
tcuDeviceGetName * cuDeviceGetName
tcuvidCtxLockDestroy * cuvidCtxLockDestroy
NVIDIA GPUs - beginning with the Kepler generation - contain a hardware-based encoder (referred to as...
static const struct drawtext_function functions[]
tcuvidCtxUnlock * cuvidCtxUnlock
tcuvidUnmapVideoFrame * cuvidUnmapVideoFrame
LIB_HANDLE lib
NV_ENCODE_API_FUNCTION_LIST.
Definition: nvEncodeAPI.h:3254
tcuvidSetVideoSourceState * cuvidSetVideoSourceState
tcuvidCtxLockCreate * cuvidCtxLockCreate
tcuMemFree_v2 * cuMemFree
tcuvidCtxLock * cuvidCtxLock
int version
Definition: avisynth_c.h:766
tcuvidGetVideoSourceState * cuvidGetVideoSourceState
tcuvidGetDecoderCaps * cuvidGetDecoderCaps
tcuvidCreateVideoParser * cuvidCreateVideoParser
tcuvidMapVideoFrame * cuvidMapVideoFrame
tcuvidDestroyDecoder * cuvidDestroyDecoder
tcuvidDestroyVideoSource * cuvidDestroyVideoSource
LIB_HANDLE lib
tcuCtxPushCurrent_v2 * cuCtxPushCurrent
error code definitions
tcuvidCreateVideoSource * cuvidCreateVideoSource
tcuvidDecodePicture * cuvidDecodePicture
tcuInit * cuInit
tcuvidParseVideoData * cuvidParseVideoData
tcuCtxCreate_v2 * cuCtxCreate
tcuvidCreateDecoder * cuvidCreateDecoder
tNvEncodeAPICreateInstance * NvEncodeAPICreateInstance
tcuGetErrorString * cuGetErrorString
tcuGetErrorName * cuGetErrorName
tcuvidGetSourceVideoFormat * cuvidGetSourceVideoFormat
tcuMemAlloc_v2 * cuMemAlloc
tcuvidCreateVideoSourceW * cuvidCreateVideoSourceW
tcuMemcpy2D_v2 * cuMemcpy2D
NVENCSTATUS NVENCAPI NvEncodeAPIGetMaxSupportedVersion(uint32_t *version)
Get the largest NvEncodeAPI version supported by the driver.
#define NVENCAPI
Definition: nvEncodeAPI.h:73
tcuDeviceGetCount * cuDeviceGetCount
LIB_HANDLE lib
tcuCtxPopCurrent_v2 * cuCtxPopCurrent
tcuvidDestroyVideoParser * cuvidDestroyVideoParser
tcuDeviceComputeCapability * cuDeviceComputeCapability
tcuCtxDestroy_v2 * cuCtxDestroy
NVENCSTATUS NVENCAPI NvEncodeAPICreateInstance(NV_ENCODE_API_FUNCTION_LIST *functionList)
Entry Point to the NvEncodeAPI interface.
tcuDeviceGet * cuDeviceGet
tNvEncodeAPIGetMaxSupportedVersion * NvEncodeAPIGetMaxSupportedVersion
NVENCSTATUS
Error Codes.
Definition: nvEncodeAPI.h:395