101 lines
4.2 KiB
C
101 lines
4.2 KiB
C
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/*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_PARSER_H__
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#define __VIDEO_PARSER_H__
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#include "precomp.hpp"
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#include "frame_queue.h"
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#include "video_decoder.h"
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#ifdef HAVE_CUDA
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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 VideoParser
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{
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public:
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VideoParser(VideoDecoder* videoDecoder, FrameQueue* frameQueue);
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~VideoParser()
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{
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cuvidDestroyVideoParser(parser_);
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}
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bool parseVideoData(const unsigned char* data, size_t size, bool endOfStream);
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bool hasError() const { return hasError_; }
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private:
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VideoParser(const VideoParser&);
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VideoParser& operator =(const VideoParser&);
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VideoDecoder* videoDecoder_;
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FrameQueue* frameQueue_;
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CUvideoparser parser_;
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int unparsedPackets_;
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volatile bool hasError_;
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// Called when the decoder encounters a video format change (or initial sequence header)
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// This particular implementation of the callback returns 0 in case the video format changes
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// to something different than the original format. Returning 0 causes a stop of the app.
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static int CUDAAPI HandleVideoSequence(void* pUserData, CUVIDEOFORMAT* pFormat);
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// Called by the video parser to decode a single picture
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// Since the parser will deliver data as fast as it can, we need to make sure that the picture
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// index we're attempting to use for decode is no longer used for display
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static int CUDAAPI HandlePictureDecode(void* pUserData, CUVIDPICPARAMS* pPicParams);
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// Called by the video parser to display a video frame (in the case of field pictures, there may be
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// 2 decode calls per 1 display call, since two fields make up one frame)
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static int CUDAAPI HandlePictureDisplay(void* pUserData, CUVIDPARSERDISPINFO* pPicParams);
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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_PARSER_H__
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