mirror of
https://github.com/opencv/opencv.git
synced 2024-12-12 23:49:36 +08:00
118 lines
4.5 KiB
C++
118 lines
4.5 KiB
C++
/*M///////////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
|
|
//
|
|
// By downloading, copying, installing or using the software you agree to this license.
|
|
// If you do not agree to this license, do not download, install,
|
|
// copy or use the software.
|
|
//
|
|
//
|
|
// License Agreement
|
|
// For Open Source Computer Vision Library
|
|
//
|
|
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
|
|
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
|
|
// Third party copyrights are property of their respective owners.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without modification,
|
|
// are permitted provided that the following conditions are met:
|
|
//
|
|
// * Redistribution's of source code must retain the above copyright notice,
|
|
// this list of conditions and the following disclaimer.
|
|
//
|
|
// * Redistribution's in binary form must reproduce the above copyright notice,
|
|
// this list of conditions and the following disclaimer in the documentation
|
|
// and/or other materials provided with the distribution.
|
|
//
|
|
// * The name of the copyright holders may not be used to endorse or promote products
|
|
// derived from this software without specific prior written permission.
|
|
//
|
|
// This software is provided by the copyright holders and contributors "as is" and
|
|
// any express or implied warranties, including, but not limited to, the implied
|
|
// warranties of merchantability and fitness for a particular purpose are disclaimed.
|
|
// In no event shall the Intel Corporation or contributors be liable for any direct,
|
|
// indirect, incidental, special, exemplary, or consequential damages
|
|
// (including, but not limited to, procurement of substitute goods or services;
|
|
// loss of use, data, or profits; or business interruption) however caused
|
|
// and on any theory of liability, whether in contract, strict liability,
|
|
// or tort (including negligence or otherwise) arising in any way out of
|
|
// the use of this software, even if advised of the possibility of such damage.
|
|
//
|
|
//M*/
|
|
|
|
#ifndef __VIDEO_DECODER_H__
|
|
#define __VIDEO_DECODER_H__
|
|
|
|
#include "precomp.hpp"
|
|
#include "cu_safe_call.h"
|
|
|
|
#if defined(HAVE_CUDA) && !defined(__APPLE__)
|
|
|
|
namespace cv { namespace gpu
|
|
{
|
|
namespace detail
|
|
{
|
|
class VideoDecoder
|
|
{
|
|
public:
|
|
VideoDecoder(const VideoReader_GPU::FormatInfo& videoFormat, CUvideoctxlock lock) : lock_(lock), decoder_(0)
|
|
{
|
|
create(videoFormat);
|
|
}
|
|
|
|
~VideoDecoder()
|
|
{
|
|
release();
|
|
}
|
|
|
|
void create(const VideoReader_GPU::FormatInfo& videoFormat);
|
|
void release();
|
|
|
|
// Get the code-type currently used.
|
|
cudaVideoCodec codec() const { return createInfo_.CodecType; }
|
|
unsigned long maxDecodeSurfaces() const { return createInfo_.ulNumDecodeSurfaces; }
|
|
|
|
unsigned long frameWidth() const { return createInfo_.ulWidth; }
|
|
unsigned long frameHeight() const { return createInfo_.ulHeight; }
|
|
|
|
unsigned long targetWidth() const { return createInfo_.ulTargetWidth; }
|
|
unsigned long targetHeight() const { return createInfo_.ulTargetHeight; }
|
|
|
|
cudaVideoChromaFormat chromaFormat() const { return createInfo_.ChromaFormat; }
|
|
|
|
bool decodePicture(CUVIDPICPARAMS* picParams)
|
|
{
|
|
return cuvidDecodePicture(decoder_, picParams) == CUDA_SUCCESS;
|
|
}
|
|
|
|
cv::gpu::GpuMat mapFrame(int picIdx, CUVIDPROCPARAMS& videoProcParams)
|
|
{
|
|
CUdeviceptr ptr;
|
|
unsigned int pitch;
|
|
|
|
cuSafeCall( cuvidMapVideoFrame(decoder_, picIdx, &ptr, &pitch, &videoProcParams) );
|
|
|
|
return GpuMat(targetHeight() * 3 / 2, targetWidth(), CV_8UC1, (void*) ptr, pitch);
|
|
}
|
|
|
|
void unmapFrame(cv::gpu::GpuMat& frame)
|
|
{
|
|
cuSafeCall( cuvidUnmapVideoFrame(decoder_, (CUdeviceptr) frame.data) );
|
|
frame.release();
|
|
}
|
|
|
|
private:
|
|
VideoDecoder(const VideoDecoder&);
|
|
VideoDecoder& operator =(const VideoDecoder&);
|
|
|
|
CUvideoctxlock lock_;
|
|
CUVIDDECODECREATEINFO createInfo_;
|
|
CUvideodecoder decoder_;
|
|
};
|
|
}
|
|
}}
|
|
|
|
#endif // HAVE_CUDA
|
|
|
|
#endif // __VIDEO_DECODER_H__
|