1/*M/////////////////////////////////////////////////////////////////////////////////////// 2// 3// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. 4// 5// By downloading, copying, installing or using the software you agree to this license. 6// If you do not agree to this license, do not download, install, 7// copy or use the software. 8// 9// 10// License Agreement 11// For Open Source Computer Vision Library 12// 13// Copyright (C) 2000-2008, Intel Corporation, all rights reserved. 14// Copyright (C) 2009, Willow Garage Inc., all rights reserved. 15// Copyright (C) 2013, OpenCV Foundation, all rights reserved. 16// Third party copyrights are property of their respective owners. 17// 18// Redistribution and use in source and binary forms, with or without modification, 19// are permitted provided that the following conditions are met: 20// 21// * Redistribution's of source code must retain the above copyright notice, 22// this list of conditions and the following disclaimer. 23// 24// * Redistribution's in binary form must reproduce the above copyright notice, 25// this list of conditions and the following disclaimer in the documentation 26// and/or other materials provided with the distribution. 27// 28// * The name of the copyright holders may not be used to endorse or promote products 29// derived from this software without specific prior written permission. 30// 31// This software is provided by the copyright holders and contributors "as is" and 32// any express or implied warranties, including, but not limited to, the implied 33// warranties of merchantability and fitness for a particular purpose are disclaimed. 34// In no event shall the Intel Corporation or contributors be liable for any direct, 35// indirect, incidental, special, exemplary, or consequential damages 36// (including, but not limited to, procurement of substitute goods or services; 37// loss of use, data, or profits; or business interruption) however caused 38// and on any theory of liability, whether in contract, strict liability, 39// or tort (including negligence or otherwise) arising in any way out of 40// the use of this software, even if advised of the possibility of such damage. 41// 42//M*/ 43 44#include "precomp.hpp" 45 46#ifdef HAVE_NVCUVID 47 48using namespace cv; 49using namespace cv::cudacodec; 50using namespace cv::cudacodec::detail; 51 52cv::cudacodec::detail::CuvidVideoSource::CuvidVideoSource(const String& fname) 53{ 54 CUVIDSOURCEPARAMS params; 55 std::memset(¶ms, 0, sizeof(CUVIDSOURCEPARAMS)); 56 57 // Fill parameter struct 58 params.pUserData = this; // will be passed to data handlers 59 params.pfnVideoDataHandler = HandleVideoData; // our local video-handler callback 60 params.pfnAudioDataHandler = 0; 61 62 // now create the actual source 63 CUresult cuRes = cuvidCreateVideoSource(&videoSource_, fname.c_str(), ¶ms); 64 if (cuRes == CUDA_ERROR_INVALID_SOURCE) 65 throw std::runtime_error(""); 66 cuSafeCall( cuRes ); 67 68 CUVIDEOFORMAT vidfmt; 69 cuSafeCall( cuvidGetSourceVideoFormat(videoSource_, &vidfmt, 0) ); 70 71 format_.codec = static_cast<Codec>(vidfmt.codec); 72 format_.chromaFormat = static_cast<ChromaFormat>(vidfmt.chroma_format); 73 format_.width = vidfmt.coded_width; 74 format_.height = vidfmt.coded_height; 75} 76 77cv::cudacodec::detail::CuvidVideoSource::~CuvidVideoSource() 78{ 79 cuvidDestroyVideoSource(videoSource_); 80} 81 82FormatInfo cv::cudacodec::detail::CuvidVideoSource::format() const 83{ 84 return format_; 85} 86 87void cv::cudacodec::detail::CuvidVideoSource::start() 88{ 89 cuSafeCall( cuvidSetVideoSourceState(videoSource_, cudaVideoState_Started) ); 90} 91 92void cv::cudacodec::detail::CuvidVideoSource::stop() 93{ 94 cuSafeCall( cuvidSetVideoSourceState(videoSource_, cudaVideoState_Stopped) ); 95} 96 97bool cv::cudacodec::detail::CuvidVideoSource::isStarted() const 98{ 99 return (cuvidGetVideoSourceState(videoSource_) == cudaVideoState_Started); 100} 101 102bool cv::cudacodec::detail::CuvidVideoSource::hasError() const 103{ 104 return (cuvidGetVideoSourceState(videoSource_) == cudaVideoState_Error); 105} 106 107int CUDAAPI cv::cudacodec::detail::CuvidVideoSource::HandleVideoData(void* userData, CUVIDSOURCEDATAPACKET* packet) 108{ 109 CuvidVideoSource* thiz = static_cast<CuvidVideoSource*>(userData); 110 111 return thiz->parseVideoData(packet->payload, packet->payload_size, (packet->flags & CUVID_PKT_ENDOFSTREAM) != 0); 112} 113 114#endif // HAVE_NVCUVID 115