85cc8cb9
 Hu Chunming
ๅ็ไปฃ็
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/*
* Copyright 1993-2015 NVIDIA Corporation. All rights reserved.
*
* Please refer to the NVIDIA end user license agreement (EULA) associated
* with this source code for terms and conditions that govern your use of
* this software. Any use, reproduction, disclosure, or distribution of
* this software and related documentation outside the terms of the EULA
* is strictly prohibited.
*
*/
#ifndef NV_VIDEODECODER_H
#define NV_VIDEODECODER_H
#include <cuda.h>
#include <cuviddec.h>
#include <nvcuvid.h>
#define MAX_FRAME_COUNT 2
// Wrapper class around the CUDA Video Decoding API.
//
class VideoDecoder
{
public:
explicit
VideoDecoder(/*const CUVIDEOFORMAT &rVideoFormat, */CUcontext &rContext,
cudaVideoCreateFlags eCreateFlags, CUvideoctxlock &ctx);
~VideoDecoder();
// Get the code-type currently used.
cudaVideoCodec
codec()
const;
cudaVideoChromaFormat
chromaFormat()
const;
// Maximum number of decode surfaces used by decoder.
unsigned long
maxDecodeSurfaces()
const;
unsigned long
frameWidth()
const;
unsigned long
frameHeight()
const;
unsigned long
targetWidth()
const;
unsigned long
targetHeight()
const;
void
decodePicture(CUVIDPICPARAMS *pPictureParameters, CUcontext *pContext = NULL);
int
mapFrame(int iPictureIndex, CUdeviceptr *ppDevice, unsigned int *nPitch, CUVIDPROCPARAMS *pVideoProcessingParameters);
void
unmapFrame(CUdeviceptr pDevice);
bool InitDecoder(const CUVIDEOFORMAT &rVideoFormat);
private:
// Default constructor. Don't implement.
VideoDecoder();
// Copy constructor. Don't implement.
VideoDecoder(const VideoDecoder &);
// Assignment operator. Don't implement.
void
operator= (const VideoDecoder &);
CUVIDDECODECREATEINFO oVideoDecodeCreateInfo_;
CUvideodecoder oDecoder_;
cudaVideoCreateFlags m_VideoCreateFlags;
CUcontext m_Context;
CUvideoctxlock m_VidCtxLock;
};
#endif // NV_VIDEODECODER_H
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