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Open Source Computer Vision Library
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105 lines
4.2 KiB
105 lines
4.2 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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#include "cuvid_video_source.h" |
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#include "cu_safe_call.h" |
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#if defined(HAVE_CUDA) && defined(HAVE_NVCUVID) |
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cv::gpu::detail::CuvidVideoSource::CuvidVideoSource(const std::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 res = cuvidCreateVideoSource(&videoSource_, fname.c_str(), ¶ms); |
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if (res == CUDA_ERROR_INVALID_SOURCE) |
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throw std::runtime_error("Unsupported video source"); |
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cuSafeCall( res ); |
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CUVIDEOFORMAT vidfmt; |
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cuSafeCall( cuvidGetSourceVideoFormat(videoSource_, &vidfmt, 0) ); |
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format_.codec = static_cast<VideoReader_GPU::Codec>(vidfmt.codec); |
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format_.chromaFormat = static_cast<VideoReader_GPU::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::gpu::VideoReader_GPU::FormatInfo cv::gpu::detail::CuvidVideoSource::format() const |
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{ |
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return format_; |
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} |
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void cv::gpu::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::gpu::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::gpu::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::gpu::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::gpu::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 // defined(HAVE_CUDA) && !defined(__APPLE__)
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