/*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. // Copyright (C) 2013, OpenCV Foundation, 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*/ #include "precomp.hpp" #ifdef HAVE_NVCUVID void cv::cudacodec::detail::VideoDecoder::create(const FormatInfo& videoFormat) { release(); cudaVideoCodec _codec = static_cast(videoFormat.codec); cudaVideoChromaFormat _chromaFormat = static_cast(videoFormat.chromaFormat); cudaVideoCreateFlags videoCreateFlags = (_codec == cudaVideoCodec_JPEG || _codec == cudaVideoCodec_MPEG2) ? cudaVideoCreate_PreferCUDA : cudaVideoCreate_PreferCUVID; // Validate video format. These are the currently supported formats via NVCUVID CV_Assert(cudaVideoCodec_MPEG1 == _codec || cudaVideoCodec_MPEG2 == _codec || cudaVideoCodec_MPEG4 == _codec || cudaVideoCodec_VC1 == _codec || cudaVideoCodec_H264 == _codec || cudaVideoCodec_JPEG == _codec || cudaVideoCodec_YUV420== _codec || cudaVideoCodec_YV12 == _codec || cudaVideoCodec_NV12 == _codec || cudaVideoCodec_YUYV == _codec || cudaVideoCodec_UYVY == _codec ); CV_Assert(cudaVideoChromaFormat_Monochrome == _chromaFormat || cudaVideoChromaFormat_420 == _chromaFormat || cudaVideoChromaFormat_422 == _chromaFormat || cudaVideoChromaFormat_444 == _chromaFormat); // Fill the decoder-create-info struct from the given video-format struct. std::memset(&createInfo_, 0, sizeof(CUVIDDECODECREATEINFO)); // Create video decoder createInfo_.CodecType = _codec; createInfo_.ulWidth = videoFormat.width; createInfo_.ulHeight = videoFormat.height; createInfo_.ulNumDecodeSurfaces = FrameQueue::MaximumSize; // Limit decode memory to 24MB (16M pixels at 4:2:0 = 24M bytes) while (createInfo_.ulNumDecodeSurfaces * videoFormat.width * videoFormat.height > 16 * 1024 * 1024) createInfo_.ulNumDecodeSurfaces--; createInfo_.ChromaFormat = _chromaFormat; createInfo_.OutputFormat = cudaVideoSurfaceFormat_NV12; createInfo_.DeinterlaceMode = cudaVideoDeinterlaceMode_Adaptive; // No scaling static const int MAX_FRAME_COUNT = 2; createInfo_.ulTargetWidth = createInfo_.ulWidth; createInfo_.ulTargetHeight = createInfo_.ulHeight; createInfo_.ulNumOutputSurfaces = MAX_FRAME_COUNT; // We won't simultaneously map more than 8 surfaces createInfo_.ulCreationFlags = videoCreateFlags; createInfo_.vidLock = lock_; // create the decoder cuSafeCall( cuvidCreateDecoder(&decoder_, &createInfo_) ); } void cv::cudacodec::detail::VideoDecoder::release() { if (decoder_) { cuvidDestroyDecoder(decoder_); decoder_ = 0; } } #endif // HAVE_NVCUVID