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