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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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b4efdeba11
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.
93 lines
3.2 KiB
C
93 lines
3.2 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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#ifndef __GST_CUVID_LOADER_H__
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#define __GST_CUVID_LOADER_H__
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#include <gst/gst.h>
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#include "stub/cuda.h"
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#include "nvcuvid.h"
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G_BEGIN_DECLS
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/* cuvid.h */
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G_GNUC_INTERNAL
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gboolean gst_cuvid_load_library (guint api_major_ver,
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guint api_minor_ver);
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G_GNUC_INTERNAL
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gboolean gst_cuvid_get_api_version (guint * api_major_ver,
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guint * api_minor_ver);
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G_GNUC_INTERNAL
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gboolean gst_cuvid_can_get_decoder_caps (void);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuvidCtxLockCreate (CUvideoctxlock * pLock,
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CUcontext ctx);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuvidCtxLockDestroy (CUvideoctxlock lck);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuvidCtxLock (CUvideoctxlock lck,
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unsigned int reserved_flags);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuvidCtxUnlock (CUvideoctxlock lck,
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unsigned int reserved_flags);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuvidCreateDecoder (CUvideodecoder * phDecoder,
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CUVIDDECODECREATEINFO * pdci);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuvidDestroyDecoder (CUvideodecoder hDecoder);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuvidDecodePicture (CUvideodecoder hDecoder,
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CUVIDPICPARAMS * pPicParams);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuvidCreateVideoParser (CUvideoparser * pObj,
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CUVIDPARSERPARAMS * pParams);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuvidParseVideoData (CUvideoparser obj,
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CUVIDSOURCEDATAPACKET * pPacket);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuvidDestroyVideoParser (CUvideoparser obj);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuvidMapVideoFrame (CUvideodecoder hDecoder,
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int nPicIdx,
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guintptr * pDevPtr,
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unsigned int *pPitch,
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CUVIDPROCPARAMS * pVPP);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuvidUnmapVideoFrame (CUvideodecoder hDecoder,
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guintptr DevPtr);
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G_GNUC_INTERNAL
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CUresult CUDAAPI CuvidGetDecoderCaps (CUVIDDECODECAPS * pdc);
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G_END_DECLS
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#endif /* __GST_CUVID_LOADER_H__ */
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