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