gstreamer/subprojects/gst-plugins-bad/sys/nvcodec/gstcuvidloader.c

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/* GStreamer
* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstcuvidloader.h"
#include <gmodule.h>
#ifdef G_OS_WIN32
#define NVCUVID_LIBNAME "nvcuvid.dll"
#else
#define NVCUVID_LIBNAME "libnvcuvid.so.1"
#endif
#define LOAD_SYMBOL(name,func,mandatory) G_STMT_START { \
if (!g_module_symbol (module, G_STRINGIFY (name), (gpointer *) &vtable->func)) { \
if (mandatory) { \
GST_ERROR ("Failed to load '%s' from %s, %s", G_STRINGIFY (name), filename, g_module_error()); \
goto error; \
} \
GST_WARNING ("Failed to load '%s' from %s, %s", G_STRINGIFY (name), filename, g_module_error()); \
} \
} G_STMT_END;
typedef struct _GstnvdecCuvidVTable
{
gboolean loaded;
guint major_version;
guint minor_version;
CUresult (CUDAAPI * CuvidCtxLockCreate) (CUvideoctxlock * pLock,
CUcontext ctx);
CUresult (CUDAAPI * CuvidCtxLockDestroy) (CUvideoctxlock lck);
CUresult (CUDAAPI * CuvidCtxLock) (CUvideoctxlock lck,
unsigned int reserved_flags);
CUresult (CUDAAPI * CuvidCtxUnlock) (CUvideoctxlock lck,
unsigned int reserved_flags);
CUresult (CUDAAPI * CuvidCreateDecoder) (CUvideodecoder * phDecoder,
CUVIDDECODECREATEINFO * pdci);
CUresult (CUDAAPI * CuvidDestroyDecoder) (CUvideodecoder hDecoder);
CUresult (CUDAAPI * CuvidDecodePicture) (CUvideodecoder hDecoder,
CUVIDPICPARAMS * pPicParams);
CUresult (CUDAAPI * CuvidCreateVideoParser) (CUvideoparser * pObj,
CUVIDPARSERPARAMS * pParams);
CUresult (CUDAAPI * CuvidParseVideoData) (CUvideoparser obj,
CUVIDSOURCEDATAPACKET * pPacket);
CUresult (CUDAAPI * CuvidDestroyVideoParser) (CUvideoparser obj);
CUresult (CUDAAPI * CuvidMapVideoFrame) (CUvideodecoder hDecoder,
int nPicIdx, guintptr * pDevPtr, unsigned int *pPitch,
CUVIDPROCPARAMS * pVPP);
CUresult (CUDAAPI * CuvidUnmapVideoFrame) (CUvideodecoder hDecoder,
guintptr DevPtr);
CUresult (CUDAAPI * CuvidGetDecoderCaps) (CUVIDDECODECAPS * pdc);
} GstnvdecCuvidVTable;
static GstnvdecCuvidVTable gst_cuvid_vtable = { 0, };
gboolean
gst_cuvid_load_library (guint api_major_ver, guint api_minor_ver)
{
GModule *module;
const gchar *filename = NVCUVID_LIBNAME;
GstnvdecCuvidVTable *vtable;
if (gst_cuvid_vtable.loaded)
return TRUE;
module = g_module_open (filename, G_MODULE_BIND_LAZY);
if (module == NULL) {
GST_WARNING ("Could not open library %s, %s", filename, g_module_error ());
return FALSE;
}
vtable = &gst_cuvid_vtable;
LOAD_SYMBOL (cuvidCtxLockCreate, CuvidCtxLockCreate, TRUE);
LOAD_SYMBOL (cuvidCtxLockDestroy, CuvidCtxLockDestroy, TRUE);
LOAD_SYMBOL (cuvidCtxLock, CuvidCtxLock, TRUE);
LOAD_SYMBOL (cuvidCtxUnlock, CuvidCtxUnlock, TRUE);
LOAD_SYMBOL (cuvidCreateDecoder, CuvidCreateDecoder, TRUE);
LOAD_SYMBOL (cuvidDestroyDecoder, CuvidDestroyDecoder, TRUE);
LOAD_SYMBOL (cuvidDecodePicture, CuvidDecodePicture, TRUE);
LOAD_SYMBOL (cuvidCreateVideoParser, CuvidCreateVideoParser, TRUE);
LOAD_SYMBOL (cuvidParseVideoData, CuvidParseVideoData, TRUE);
LOAD_SYMBOL (cuvidDestroyVideoParser, CuvidDestroyVideoParser, TRUE);
LOAD_SYMBOL (cuvidMapVideoFrame, CuvidMapVideoFrame, TRUE);
LOAD_SYMBOL (cuvidUnmapVideoFrame, CuvidUnmapVideoFrame, TRUE);
LOAD_SYMBOL (cuvidGetDecoderCaps, CuvidGetDecoderCaps, FALSE);
vtable->loaded = TRUE;
vtable->major_version = api_major_ver;
vtable->minor_version = api_minor_ver;
return TRUE;
error:
g_module_close (module);
return FALSE;
}
gboolean
gst_cuvid_get_api_version (guint * api_major_ver, guint * api_minor_ver)
{
if (!gst_cuvid_vtable.loaded)
return FALSE;
if (api_major_ver)
*api_major_ver = gst_cuvid_vtable.major_version;
if (api_minor_ver)
*api_minor_ver = gst_cuvid_vtable.minor_version;
return TRUE;
}
gboolean
gst_cuvid_can_get_decoder_caps (void)
{
if (gst_cuvid_vtable.CuvidGetDecoderCaps)
return TRUE;
return FALSE;
}
CUresult CUDAAPI
CuvidCtxLockCreate (CUvideoctxlock * pLock, CUcontext ctx)
{
g_assert (gst_cuvid_vtable.CuvidCtxLockCreate != NULL);
return gst_cuvid_vtable.CuvidCtxLockCreate (pLock, ctx);
}
CUresult CUDAAPI
CuvidCtxLockDestroy (CUvideoctxlock lck)
{
g_assert (gst_cuvid_vtable.CuvidCtxLockDestroy != NULL);
return gst_cuvid_vtable.CuvidCtxLockDestroy (lck);
}
CUresult CUDAAPI
CuvidCtxLock (CUvideoctxlock lck, unsigned int reserved_flags)
{
g_assert (gst_cuvid_vtable.CuvidCtxLock != NULL);
return gst_cuvid_vtable.CuvidCtxLock (lck, reserved_flags);
}
CUresult CUDAAPI
CuvidCtxUnlock (CUvideoctxlock lck, unsigned int reserved_flags)
{
g_assert (gst_cuvid_vtable.CuvidCtxLockDestroy != NULL);
return gst_cuvid_vtable.CuvidCtxUnlock (lck, reserved_flags);
}
CUresult CUDAAPI
CuvidCreateDecoder (CUvideodecoder * phDecoder, CUVIDDECODECREATEINFO * pdci)
{
g_assert (gst_cuvid_vtable.CuvidCreateDecoder != NULL);
return gst_cuvid_vtable.CuvidCreateDecoder (phDecoder, pdci);
}
CUresult CUDAAPI
CuvidDestroyDecoder (CUvideodecoder hDecoder)
{
g_assert (gst_cuvid_vtable.CuvidDestroyDecoder != NULL);
return gst_cuvid_vtable.CuvidDestroyDecoder (hDecoder);
}
CUresult CUDAAPI
CuvidDecodePicture (CUvideodecoder hDecoder, CUVIDPICPARAMS * pPicParams)
{
g_assert (gst_cuvid_vtable.CuvidDecodePicture != NULL);
return gst_cuvid_vtable.CuvidDecodePicture (hDecoder, pPicParams);
}
CUresult CUDAAPI
CuvidCreateVideoParser (CUvideoparser * pObj, CUVIDPARSERPARAMS * pParams)
{
g_assert (gst_cuvid_vtable.CuvidCreateVideoParser != NULL);
return gst_cuvid_vtable.CuvidCreateVideoParser (pObj, pParams);
}
CUresult CUDAAPI
CuvidParseVideoData (CUvideoparser obj, CUVIDSOURCEDATAPACKET * pPacket)
{
g_assert (gst_cuvid_vtable.CuvidParseVideoData != NULL);
return gst_cuvid_vtable.CuvidParseVideoData (obj, pPacket);
}
CUresult CUDAAPI
CuvidDestroyVideoParser (CUvideoparser obj)
{
g_assert (gst_cuvid_vtable.CuvidDestroyVideoParser != NULL);
return gst_cuvid_vtable.CuvidDestroyVideoParser (obj);
}
CUresult CUDAAPI
CuvidMapVideoFrame (CUvideodecoder hDecoder, int nPicIdx,
guintptr * pDevPtr, unsigned int *pPitch, CUVIDPROCPARAMS * pVPP)
{
g_assert (gst_cuvid_vtable.CuvidMapVideoFrame != NULL);
return gst_cuvid_vtable.CuvidMapVideoFrame (hDecoder, nPicIdx, pDevPtr,
pPitch, pVPP);
}
CUresult CUDAAPI
CuvidUnmapVideoFrame (CUvideodecoder hDecoder, guintptr DevPtr)
{
g_assert (gst_cuvid_vtable.CuvidUnmapVideoFrame != NULL);
return gst_cuvid_vtable.CuvidUnmapVideoFrame (hDecoder, DevPtr);
}
CUresult CUDAAPI
CuvidGetDecoderCaps (CUVIDDECODECAPS * pdc)
{
g_assert (gst_cuvid_vtable.CuvidGetDecoderCaps != NULL);
return gst_cuvid_vtable.CuvidGetDecoderCaps (pdc);
}