mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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694f91da88
By adding system memory support for nvdec, both en/decoder in the nvcodec plugin are able to be usable regardless of OpenGL dependency. Besides, the direct use of system memory might have less overhead than OpenGL memory depending on use cases. (e.g., transcoding using S/W encoder)
352 lines
10 KiB
C
352 lines
10 KiB
C
/* GStreamer
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* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstcudaloader.h"
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#include <gmodule.h>
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#ifndef G_OS_WIN32
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#define CUDA_LIBNAME "libcuda.so.1"
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#else
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#define CUDA_LIBNAME "nvcuda.dll"
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#endif
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#define LOAD_SYMBOL(name,func) G_STMT_START { \
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if (!g_module_symbol (module, G_STRINGIFY (name), (gpointer *) &vtable->func)) { \
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GST_ERROR ("Failed to load '%s' from %s, %s", G_STRINGIFY (name), filename, g_module_error()); \
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goto error; \
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} \
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} G_STMT_END;
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typedef struct _GstNvCodecCudaVTable
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{
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gboolean loaded;
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CUresult (*CuInit) (unsigned int Flags);
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CUresult (*CuGetErrorName) (CUresult error, const char **pStr);
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CUresult (*CuGetErrorString) (CUresult error, const char **pStr);
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CUresult (*CuCtxCreate) (CUcontext * pctx, unsigned int flags,
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CUdevice dev);
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CUresult (*CuCtxDestroy) (CUcontext ctx);
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CUresult (*CuCtxPopCurrent) (CUcontext * pctx);
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CUresult (*CuCtxPushCurrent) (CUcontext ctx);
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CUresult (*CuGraphicsMapResources) (unsigned int count,
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CUgraphicsResource * resources, CUstream hStream);
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CUresult (*CuGraphicsUnmapResources) (unsigned int count,
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CUgraphicsResource * resources, CUstream hStream);
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CUresult (*CuGraphicsSubResourceGetMappedArray) (CUarray * pArray,
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CUgraphicsResource resource, unsigned int arrayIndex,
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unsigned int mipLevel);
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CUresult (*CuGraphicsResourceGetMappedPointer) (CUdeviceptr * pDevPtr,
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size_t * pSize, CUgraphicsResource resource);
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CUresult (*CuGraphicsUnregisterResource) (CUgraphicsResource resource);
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CUresult (*CuMemAlloc) (CUdeviceptr * dptr, unsigned int bytesize);
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CUresult (*CuMemAllocPitch) (CUdeviceptr * dptr, size_t * pPitch,
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size_t WidthInBytes, size_t Height, unsigned int ElementSizeBytes);
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CUresult (*CuMemcpy2D) (const CUDA_MEMCPY2D * pCopy);
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CUresult (*CuMemcpy2DAsync) (const CUDA_MEMCPY2D * pCopy, CUstream hStream);
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CUresult (*CuMemFree) (CUdeviceptr dptr);
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CUresult (*CuStreamSynchronize) (CUstream hStream);
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CUresult (*CuDeviceGet) (CUdevice * device, int ordinal);
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CUresult (*CuDeviceGetCount) (int *count);
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CUresult (*CuDeviceGetName) (char *name, int len, CUdevice dev);
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CUresult (*CuDeviceGetAttribute) (int *pi, CUdevice_attribute attrib,
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CUdevice dev);
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CUresult (*CuGraphicsGLRegisterImage) (CUgraphicsResource * pCudaResource,
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unsigned int image, unsigned int target, unsigned int Flags);
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CUresult (*CuGraphicsGLRegisterBuffer) (CUgraphicsResource * pCudaResource,
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unsigned int buffer, unsigned int Flags);
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} GstNvCodecCudaVTable;
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static GstNvCodecCudaVTable gst_cuda_vtable = { 0, };
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gboolean
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gst_cuda_load_library (void)
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{
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GModule *module;
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const gchar *filename = CUDA_LIBNAME;
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GstNvCodecCudaVTable *vtable;
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if (gst_cuda_vtable.loaded)
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return TRUE;
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module = g_module_open (filename, G_MODULE_BIND_LAZY);
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if (module == NULL) {
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GST_WARNING ("Could not open library %s, %s", filename, g_module_error ());
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return FALSE;
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}
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vtable = &gst_cuda_vtable;
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/* cuda.h */
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LOAD_SYMBOL (cuInit, CuInit);
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LOAD_SYMBOL (cuGetErrorName, CuGetErrorName);
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LOAD_SYMBOL (cuGetErrorString, CuGetErrorString);
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LOAD_SYMBOL (cuCtxCreate, CuCtxCreate);
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LOAD_SYMBOL (cuCtxDestroy, CuCtxDestroy);
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LOAD_SYMBOL (cuCtxPopCurrent, CuCtxPopCurrent);
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LOAD_SYMBOL (cuCtxPushCurrent, CuCtxPushCurrent);
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LOAD_SYMBOL (cuGraphicsMapResources, CuGraphicsMapResources);
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LOAD_SYMBOL (cuGraphicsUnmapResources, CuGraphicsUnmapResources);
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LOAD_SYMBOL (cuGraphicsSubResourceGetMappedArray,
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CuGraphicsSubResourceGetMappedArray);
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LOAD_SYMBOL (cuGraphicsResourceGetMappedPointer,
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CuGraphicsResourceGetMappedPointer);
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LOAD_SYMBOL (cuGraphicsUnregisterResource, CuGraphicsUnregisterResource);
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LOAD_SYMBOL (cuMemAlloc, CuMemAlloc);
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LOAD_SYMBOL (cuMemAllocPitch, CuMemAllocPitch);
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LOAD_SYMBOL (cuMemcpy2D, CuMemcpy2D);
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LOAD_SYMBOL (cuMemcpy2DAsync, CuMemcpy2DAsync);
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LOAD_SYMBOL (cuMemFree, CuMemFree);
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LOAD_SYMBOL (cuStreamSynchronize, CuStreamSynchronize);
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LOAD_SYMBOL (cuDeviceGet, CuDeviceGet);
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LOAD_SYMBOL (cuDeviceGetCount, CuDeviceGetCount);
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LOAD_SYMBOL (cuDeviceGetName, CuDeviceGetName);
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LOAD_SYMBOL (cuDeviceGetAttribute, CuDeviceGetAttribute);
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/* cudaGL.h */
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LOAD_SYMBOL (cuGraphicsGLRegisterImage, CuGraphicsGLRegisterImage);
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LOAD_SYMBOL (cuGraphicsGLRegisterBuffer, CuGraphicsGLRegisterBuffer);
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vtable->loaded = TRUE;
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return TRUE;
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error:
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g_module_close (module);
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return FALSE;
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}
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CUresult
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CuInit (unsigned int Flags)
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{
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g_assert (gst_cuda_vtable.CuInit != NULL);
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return gst_cuda_vtable.CuInit (Flags);
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}
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CUresult
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CuGetErrorName (CUresult error, const char **pStr)
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{
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g_assert (gst_cuda_vtable.CuGetErrorName != NULL);
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return gst_cuda_vtable.CuGetErrorName (error, pStr);
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}
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CUresult
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CuGetErrorString (CUresult error, const char **pStr)
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{
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g_assert (gst_cuda_vtable.CuGetErrorString != NULL);
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return gst_cuda_vtable.CuGetErrorString (error, pStr);
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}
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CUresult
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CuCtxCreate (CUcontext * pctx, unsigned int flags, CUdevice dev)
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{
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g_assert (gst_cuda_vtable.CuCtxCreate != NULL);
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return gst_cuda_vtable.CuCtxCreate (pctx, flags, dev);
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}
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CUresult
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CuCtxDestroy (CUcontext ctx)
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{
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g_assert (gst_cuda_vtable.CuCtxDestroy != NULL);
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return gst_cuda_vtable.CuCtxDestroy (ctx);
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}
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CUresult
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CuCtxPopCurrent (CUcontext * pctx)
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{
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g_assert (gst_cuda_vtable.CuCtxPopCurrent != NULL);
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return gst_cuda_vtable.CuCtxPopCurrent (pctx);
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}
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CUresult
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CuCtxPushCurrent (CUcontext ctx)
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{
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g_assert (gst_cuda_vtable.CuCtxPushCurrent != NULL);
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return gst_cuda_vtable.CuCtxPushCurrent (ctx);
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}
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CUresult
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CuGraphicsMapResources (unsigned int count, CUgraphicsResource * resources,
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CUstream hStream)
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{
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g_assert (gst_cuda_vtable.CuGraphicsMapResources != NULL);
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return gst_cuda_vtable.CuGraphicsMapResources (count, resources, hStream);
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}
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CUresult
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CuGraphicsUnmapResources (unsigned int count, CUgraphicsResource * resources,
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CUstream hStream)
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{
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g_assert (gst_cuda_vtable.CuGraphicsUnmapResources != NULL);
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return gst_cuda_vtable.CuGraphicsUnmapResources (count, resources, hStream);
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}
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CUresult
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CuGraphicsSubResourceGetMappedArray (CUarray * pArray,
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CUgraphicsResource resource, unsigned int arrayIndex, unsigned int mipLevel)
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{
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g_assert (gst_cuda_vtable.CuGraphicsSubResourceGetMappedArray != NULL);
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return gst_cuda_vtable.CuGraphicsSubResourceGetMappedArray (pArray, resource,
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arrayIndex, mipLevel);
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}
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CUresult
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CuGraphicsResourceGetMappedPointer (CUdeviceptr * pDevPtr, size_t * pSize,
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CUgraphicsResource resource)
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{
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g_assert (gst_cuda_vtable.CuGraphicsResourceGetMappedPointer != NULL);
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return gst_cuda_vtable.CuGraphicsResourceGetMappedPointer (pDevPtr, pSize,
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resource);
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}
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CUresult
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CuGraphicsUnregisterResource (CUgraphicsResource resource)
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{
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g_assert (gst_cuda_vtable.CuGraphicsUnregisterResource != NULL);
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return gst_cuda_vtable.CuGraphicsUnregisterResource (resource);
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}
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CUresult
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CuMemAlloc (CUdeviceptr * dptr, unsigned int bytesize)
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{
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g_assert (gst_cuda_vtable.CuMemAlloc != NULL);
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return gst_cuda_vtable.CuMemAlloc (dptr, bytesize);
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}
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CUresult
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CuMemAllocPitch (CUdeviceptr * dptr, size_t * pPitch, size_t WidthInBytes,
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size_t Height, unsigned int ElementSizeBytes)
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{
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g_assert (gst_cuda_vtable.CuMemAllocPitch != NULL);
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return gst_cuda_vtable.CuMemAllocPitch (dptr, pPitch, WidthInBytes, Height,
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ElementSizeBytes);
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}
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CUresult
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CuMemcpy2D (const CUDA_MEMCPY2D * pCopy)
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{
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g_assert (gst_cuda_vtable.CuMemcpy2D != NULL);
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return gst_cuda_vtable.CuMemcpy2D (pCopy);
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}
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CUresult
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CuMemcpy2DAsync (const CUDA_MEMCPY2D * pCopy, CUstream hStream)
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{
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g_assert (gst_cuda_vtable.CuMemcpy2DAsync != NULL);
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return gst_cuda_vtable.CuMemcpy2DAsync (pCopy, hStream);
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}
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CUresult
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CuMemFree (CUdeviceptr dptr)
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{
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g_assert (gst_cuda_vtable.CuMemFree != NULL);
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return gst_cuda_vtable.CuMemFree (dptr);
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}
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CUresult
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CuStreamSynchronize (CUstream hStream)
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{
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g_assert (gst_cuda_vtable.CuStreamSynchronize != NULL);
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return gst_cuda_vtable.CuStreamSynchronize (hStream);
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}
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CUresult
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CuDeviceGet (CUdevice * device, int ordinal)
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{
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g_assert (gst_cuda_vtable.CuDeviceGet != NULL);
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return gst_cuda_vtable.CuDeviceGet (device, ordinal);
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}
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CUresult
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CuDeviceGetCount (int *count)
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{
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g_assert (gst_cuda_vtable.CuDeviceGetCount != NULL);
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return gst_cuda_vtable.CuDeviceGetCount (count);
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}
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CUresult
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CuDeviceGetName (char *name, int len, CUdevice dev)
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{
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g_assert (gst_cuda_vtable.CuDeviceGetName != NULL);
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return gst_cuda_vtable.CuDeviceGetName (name, len, dev);
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}
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CUresult
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CuDeviceGetAttribute (int *pi, CUdevice_attribute attrib, CUdevice dev)
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{
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g_assert (gst_cuda_vtable.CuDeviceGetAttribute != NULL);
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return gst_cuda_vtable.CuDeviceGetAttribute (pi, attrib, dev);
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}
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/* cudaGL.h */
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CUresult
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CuGraphicsGLRegisterImage (CUgraphicsResource * pCudaResource,
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unsigned int image, unsigned int target, unsigned int Flags)
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{
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g_assert (gst_cuda_vtable.CuGraphicsGLRegisterImage != NULL);
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return gst_cuda_vtable.CuGraphicsGLRegisterImage (pCudaResource, image,
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target, Flags);
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}
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CUresult
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CuGraphicsGLRegisterBuffer (CUgraphicsResource * pCudaResource,
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unsigned int buffer, unsigned int Flags)
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{
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g_assert (gst_cuda_vtable.CuGraphicsGLRegisterBuffer != NULL);
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return gst_cuda_vtable.CuGraphicsGLRegisterBuffer (pCudaResource, buffer,
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Flags);
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}
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