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FFmpeg/compat/cuda/dynlink_loader.h

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/*
* This copyright notice applies to this header file only:
*
* Copyright (c) 2016
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the software, and to permit persons to whom the
* software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef AV_COMPAT_CUDA_DYNLINK_LOADER_H
#define AV_COMPAT_CUDA_DYNLINK_LOADER_H
#include "compat/cuda/dynlink_cuda.h"
#include "compat/cuda/dynlink_nvcuvid.h"
#include "compat/nvenc/nvEncodeAPI.h"
#include "compat/w32dlfcn.h"
#include "libavutil/log.h"
#include "libavutil/error.h"
#if defined(_WIN32)
# define LIB_HANDLE HMODULE
#else
# define LIB_HANDLE void*
#endif
#if defined(_WIN32) || defined(__CYGWIN__)
# define CUDA_LIBNAME "nvcuda.dll"
# define NVCUVID_LIBNAME "nvcuvid.dll"
# if ARCH_X86_64
# define NVENC_LIBNAME "nvEncodeAPI64.dll"
# else
# define NVENC_LIBNAME "nvEncodeAPI.dll"
# endif
#else
# define CUDA_LIBNAME "libcuda.so.1"
# define NVCUVID_LIBNAME "libnvcuvid.so.1"
# define NVENC_LIBNAME "libnvidia-encode.so.1"
#endif
#define LOAD_LIBRARY(l, path) \
do { \
if (!((l) = dlopen(path, RTLD_LAZY))) { \
av_log(NULL, AV_LOG_ERROR, "Cannot load %s\n", path); \
ret = AVERROR_UNKNOWN; \
goto error; \
} \
av_log(NULL, AV_LOG_TRACE, "Loaded lib: %s\n", path); \
} while (0)
#define LOAD_SYMBOL(fun, symbol) \
do { \
if (!((f->fun) = dlsym(f->lib, symbol))) { \
av_log(NULL, AV_LOG_ERROR, "Cannot load %s\n", symbol); \
ret = AVERROR_UNKNOWN; \
goto error; \
} \
av_log(NULL, AV_LOG_TRACE, "Loaded sym: %s\n", symbol); \
} while (0)
#define GENERIC_LOAD_FUNC_PREAMBLE(T, n, N) \
T *f; \
int ret; \
\
n##_free_functions(functions); \
\
f = *functions = av_mallocz(sizeof(*f)); \
if (!f) \
return AVERROR(ENOMEM); \
\
LOAD_LIBRARY(f->lib, N);
#define GENERIC_LOAD_FUNC_FINALE(n) \
return 0; \
error: \
n##_free_functions(functions); \
return ret;
#define GENERIC_FREE_FUNC() \
if (!functions) \
return; \
if (*functions && (*functions)->lib) \
dlclose((*functions)->lib); \
av_freep(functions);
#ifdef AV_COMPAT_DYNLINK_CUDA_H
typedef struct CudaFunctions {
tcuInit *cuInit;
tcuDeviceGetCount *cuDeviceGetCount;
tcuDeviceGet *cuDeviceGet;
tcuDeviceGetName *cuDeviceGetName;
tcuDeviceComputeCapability *cuDeviceComputeCapability;
tcuCtxCreate_v2 *cuCtxCreate;
tcuCtxPushCurrent_v2 *cuCtxPushCurrent;
tcuCtxPopCurrent_v2 *cuCtxPopCurrent;
tcuCtxDestroy_v2 *cuCtxDestroy;
tcuMemAlloc_v2 *cuMemAlloc;
tcuMemFree_v2 *cuMemFree;
tcuMemcpy2D_v2 *cuMemcpy2D;
tcuGetErrorName *cuGetErrorName;
tcuGetErrorString *cuGetErrorString;
LIB_HANDLE lib;
} CudaFunctions;
#else
typedef struct CudaFunctions CudaFunctions;
#endif
typedef struct CuvidFunctions {
tcuvidCreateDecoder *cuvidCreateDecoder;
tcuvidDestroyDecoder *cuvidDestroyDecoder;
tcuvidDecodePicture *cuvidDecodePicture;
tcuvidMapVideoFrame *cuvidMapVideoFrame;
tcuvidUnmapVideoFrame *cuvidUnmapVideoFrame;
tcuvidCtxLockCreate *cuvidCtxLockCreate;
tcuvidCtxLockDestroy *cuvidCtxLockDestroy;
tcuvidCtxLock *cuvidCtxLock;
tcuvidCtxUnlock *cuvidCtxUnlock;
tcuvidCreateVideoSource *cuvidCreateVideoSource;
tcuvidCreateVideoSourceW *cuvidCreateVideoSourceW;
tcuvidDestroyVideoSource *cuvidDestroyVideoSource;
tcuvidSetVideoSourceState *cuvidSetVideoSourceState;
tcuvidGetVideoSourceState *cuvidGetVideoSourceState;
tcuvidGetSourceVideoFormat *cuvidGetSourceVideoFormat;
tcuvidGetSourceAudioFormat *cuvidGetSourceAudioFormat;
tcuvidCreateVideoParser *cuvidCreateVideoParser;
tcuvidParseVideoData *cuvidParseVideoData;
tcuvidDestroyVideoParser *cuvidDestroyVideoParser;
LIB_HANDLE lib;
} CuvidFunctions;
typedef struct NvencFunctions {
NVENCSTATUS (NVENCAPI *NvEncodeAPICreateInstance)(NV_ENCODE_API_FUNCTION_LIST *functionList);
NVENCSTATUS (NVENCAPI *NvEncodeAPIGetMaxSupportedVersion)(uint32_t* version);
LIB_HANDLE lib;
} NvencFunctions;
#ifdef AV_COMPAT_DYNLINK_CUDA_H
static inline void cuda_free_functions(CudaFunctions **functions)
{
GENERIC_FREE_FUNC();
}
#endif
static inline void cuvid_free_functions(CuvidFunctions **functions)
{
GENERIC_FREE_FUNC();
}
static inline void nvenc_free_functions(NvencFunctions **functions)
{
GENERIC_FREE_FUNC();
}
#ifdef AV_COMPAT_DYNLINK_CUDA_H
static inline int cuda_load_functions(CudaFunctions **functions)
{
GENERIC_LOAD_FUNC_PREAMBLE(CudaFunctions, cuda, CUDA_LIBNAME);
LOAD_SYMBOL(cuInit, "cuInit");
LOAD_SYMBOL(cuDeviceGetCount, "cuDeviceGetCount");
LOAD_SYMBOL(cuDeviceGet, "cuDeviceGet");
LOAD_SYMBOL(cuDeviceGetName, "cuDeviceGetName");
LOAD_SYMBOL(cuDeviceComputeCapability, "cuDeviceComputeCapability");
LOAD_SYMBOL(cuCtxCreate, "cuCtxCreate_v2");
LOAD_SYMBOL(cuCtxPushCurrent, "cuCtxPushCurrent_v2");
LOAD_SYMBOL(cuCtxPopCurrent, "cuCtxPopCurrent_v2");
LOAD_SYMBOL(cuCtxDestroy, "cuCtxDestroy_v2");
LOAD_SYMBOL(cuMemAlloc, "cuMemAlloc_v2");
LOAD_SYMBOL(cuMemFree, "cuMemFree_v2");
LOAD_SYMBOL(cuMemcpy2D, "cuMemcpy2D_v2");
LOAD_SYMBOL(cuGetErrorName, "cuGetErrorName");
LOAD_SYMBOL(cuGetErrorString, "cuGetErrorString");
GENERIC_LOAD_FUNC_FINALE(cuda);
}
#endif
static inline int cuvid_load_functions(CuvidFunctions **functions)
{
GENERIC_LOAD_FUNC_PREAMBLE(CuvidFunctions, cuvid, NVCUVID_LIBNAME);
LOAD_SYMBOL(cuvidCreateDecoder, "cuvidCreateDecoder");
LOAD_SYMBOL(cuvidDestroyDecoder, "cuvidDestroyDecoder");
LOAD_SYMBOL(cuvidDecodePicture, "cuvidDecodePicture");
#ifdef __CUVID_DEVPTR64
LOAD_SYMBOL(cuvidMapVideoFrame, "cuvidMapVideoFrame64");
LOAD_SYMBOL(cuvidUnmapVideoFrame, "cuvidUnmapVideoFrame64");
#else
LOAD_SYMBOL(cuvidMapVideoFrame, "cuvidMapVideoFrame");
LOAD_SYMBOL(cuvidUnmapVideoFrame, "cuvidUnmapVideoFrame");
#endif
LOAD_SYMBOL(cuvidCtxLockCreate, "cuvidCtxLockCreate");
LOAD_SYMBOL(cuvidCtxLockDestroy, "cuvidCtxLockDestroy");
LOAD_SYMBOL(cuvidCtxLock, "cuvidCtxLock");
LOAD_SYMBOL(cuvidCtxUnlock, "cuvidCtxUnlock");
LOAD_SYMBOL(cuvidCreateVideoSource, "cuvidCreateVideoSource");
LOAD_SYMBOL(cuvidCreateVideoSourceW, "cuvidCreateVideoSourceW");
LOAD_SYMBOL(cuvidDestroyVideoSource, "cuvidDestroyVideoSource");
LOAD_SYMBOL(cuvidSetVideoSourceState, "cuvidSetVideoSourceState");
LOAD_SYMBOL(cuvidGetVideoSourceState, "cuvidGetVideoSourceState");
LOAD_SYMBOL(cuvidGetSourceVideoFormat, "cuvidGetSourceVideoFormat");
LOAD_SYMBOL(cuvidGetSourceAudioFormat, "cuvidGetSourceAudioFormat");
LOAD_SYMBOL(cuvidCreateVideoParser, "cuvidCreateVideoParser");
LOAD_SYMBOL(cuvidParseVideoData, "cuvidParseVideoData");
LOAD_SYMBOL(cuvidDestroyVideoParser, "cuvidDestroyVideoParser");
GENERIC_LOAD_FUNC_FINALE(cuvid);
}
static inline int nvenc_load_functions(NvencFunctions **functions)
{
GENERIC_LOAD_FUNC_PREAMBLE(NvencFunctions, nvenc, NVENC_LIBNAME);
LOAD_SYMBOL(NvEncodeAPICreateInstance, "NvEncodeAPICreateInstance");
LOAD_SYMBOL(NvEncodeAPIGetMaxSupportedVersion, "NvEncodeAPIGetMaxSupportedVersion");
GENERIC_LOAD_FUNC_FINALE(nvenc);
}
#undef GENERIC_LOAD_FUNC_PREAMBLE
#undef LOAD_LIBRARY
#undef LOAD_SYMBOL
#undef GENERIC_LOAD_FUNC_FINALE
#undef GENERIC_FREE_FUNC
#undef CUDA_LIBNAME
#undef NVCUVID_LIBNAME
#undef NVENC_LIBNAME
#undef LIB_HANDLE
#endif