115 lines
4.3 KiB
C++
115 lines
4.3 KiB
C++
/*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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// Copyright (C) 2013, OpenCV Foundation, 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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#include "precomp.hpp"
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#ifdef HAVE_NVCUVID
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using namespace cv;
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using namespace cv::cudacodec;
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using namespace cv::cudacodec::detail;
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cv::cudacodec::detail::CuvidVideoSource::CuvidVideoSource(const String& fname)
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{
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CUVIDSOURCEPARAMS params;
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std::memset(¶ms, 0, sizeof(CUVIDSOURCEPARAMS));
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// Fill parameter struct
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params.pUserData = this; // will be passed to data handlers
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params.pfnVideoDataHandler = HandleVideoData; // our local video-handler callback
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params.pfnAudioDataHandler = 0;
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// now create the actual source
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CUresult cuRes = cuvidCreateVideoSource(&videoSource_, fname.c_str(), ¶ms);
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if (cuRes == CUDA_ERROR_INVALID_SOURCE)
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throw std::runtime_error("");
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cuSafeCall( cuRes );
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CUVIDEOFORMAT vidfmt;
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cuSafeCall( cuvidGetSourceVideoFormat(videoSource_, &vidfmt, 0) );
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format_.codec = static_cast<Codec>(vidfmt.codec);
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format_.chromaFormat = static_cast<ChromaFormat>(vidfmt.chroma_format);
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format_.width = vidfmt.coded_width;
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format_.height = vidfmt.coded_height;
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}
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cv::cudacodec::detail::CuvidVideoSource::~CuvidVideoSource()
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{
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cuvidDestroyVideoSource(videoSource_);
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}
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FormatInfo cv::cudacodec::detail::CuvidVideoSource::format() const
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{
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return format_;
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}
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void cv::cudacodec::detail::CuvidVideoSource::start()
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{
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cuSafeCall( cuvidSetVideoSourceState(videoSource_, cudaVideoState_Started) );
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}
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void cv::cudacodec::detail::CuvidVideoSource::stop()
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{
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cuSafeCall( cuvidSetVideoSourceState(videoSource_, cudaVideoState_Stopped) );
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}
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bool cv::cudacodec::detail::CuvidVideoSource::isStarted() const
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{
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return (cuvidGetVideoSourceState(videoSource_) == cudaVideoState_Started);
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}
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bool cv::cudacodec::detail::CuvidVideoSource::hasError() const
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{
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return (cuvidGetVideoSourceState(videoSource_) == cudaVideoState_Error);
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}
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int CUDAAPI cv::cudacodec::detail::CuvidVideoSource::HandleVideoData(void* userData, CUVIDSOURCEDATAPACKET* packet)
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{
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CuvidVideoSource* thiz = static_cast<CuvidVideoSource*>(userData);
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return thiz->parseVideoData(packet->payload, packet->payload_size, (packet->flags & CUVID_PKT_ENDOFSTREAM) != 0);
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}
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#endif // HAVE_NVCUVID
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