gstreamer/sys/nvcodec/gstcuvidloader.h
Seungha Yang b4efdeba11 nvdec: Don't hardcode DPB size
Too many decode surface would waste GPU memory. Also it seems to be
introducing additional latency depending on stream. Since nvcodec
sdk version 9.0, CUVID parser API has been providing the minimum
required number of surface. By using it, we can save GPU memory
and reduce possible latency.
2020-04-09 16:30:58 +09:00

92 lines
3.2 KiB
C

/* 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.
*/
#ifndef __GST_CUVID_LOADER_H__
#define __GST_CUVID_LOADER_H__
#include <gst/gst.h>
#include "stub/cuda.h"
#include "nvcuvid.h"
G_BEGIN_DECLS
/* cuvid.h */
G_GNUC_INTERNAL
gboolean gst_cuvid_load_library (guint api_major_ver,
guint api_minor_ver);
G_GNUC_INTERNAL
gboolean gst_cuvid_get_api_version (guint * api_major_ver,
guint * api_minor_ver);
G_GNUC_INTERNAL
gboolean gst_cuvid_can_get_decoder_caps (void);
G_GNUC_INTERNAL
CUresult CUDAAPI CuvidCtxLockCreate (CUvideoctxlock * pLock,
CUcontext ctx);
G_GNUC_INTERNAL
CUresult CUDAAPI CuvidCtxLockDestroy (CUvideoctxlock lck);
G_GNUC_INTERNAL
CUresult CUDAAPI CuvidCtxLock (CUvideoctxlock lck,
unsigned int reserved_flags);
G_GNUC_INTERNAL
CUresult CUDAAPI CuvidCtxUnlock (CUvideoctxlock lck,
unsigned int reserved_flags);
G_GNUC_INTERNAL
CUresult CUDAAPI CuvidCreateDecoder (CUvideodecoder * phDecoder,
CUVIDDECODECREATEINFO * pdci);
G_GNUC_INTERNAL
CUresult CUDAAPI CuvidDestroyDecoder (CUvideodecoder hDecoder);
G_GNUC_INTERNAL
CUresult CUDAAPI CuvidDecodePicture (CUvideodecoder hDecoder,
CUVIDPICPARAMS * pPicParams);
G_GNUC_INTERNAL
CUresult CUDAAPI CuvidCreateVideoParser (CUvideoparser * pObj,
CUVIDPARSERPARAMS * pParams);
G_GNUC_INTERNAL
CUresult CUDAAPI CuvidParseVideoData (CUvideoparser obj,
CUVIDSOURCEDATAPACKET * pPacket);
G_GNUC_INTERNAL
CUresult CUDAAPI CuvidDestroyVideoParser (CUvideoparser obj);
G_GNUC_INTERNAL
CUresult CUDAAPI CuvidMapVideoFrame (CUvideodecoder hDecoder,
int nPicIdx,
guintptr * pDevPtr,
unsigned int *pPitch,
CUVIDPROCPARAMS * pVPP);
G_GNUC_INTERNAL
CUresult CUDAAPI CuvidUnmapVideoFrame (CUvideodecoder hDecoder,
guintptr DevPtr);
G_GNUC_INTERNAL
CUresult CUDAAPI CuvidGetDecoderCaps (CUVIDDECODECAPS * pdc);
G_END_DECLS
#endif /* __GST_CUVID_LOADER_H__ */