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
48 using namespace cv;
49 using namespace cv::cudacodec;
50 using namespace cv::cudacodec::detail;
51
parseVideoData(const unsigned char * data,size_t size,bool endOfStream)52 bool cv::cudacodec::detail::VideoSource::parseVideoData(const unsigned char* data, size_t size, bool endOfStream)
53 {
54 return videoParser_->parseVideoData(data, size, endOfStream);
55 }
56
RawVideoSourceWrapper(const Ptr<RawVideoSource> & source)57 cv::cudacodec::detail::RawVideoSourceWrapper::RawVideoSourceWrapper(const Ptr<RawVideoSource>& source) :
58 source_(source)
59 {
60 CV_Assert( !source_.empty() );
61 }
62
format() const63 cv::cudacodec::FormatInfo cv::cudacodec::detail::RawVideoSourceWrapper::format() const
64 {
65 return source_->format();
66 }
67
start()68 void cv::cudacodec::detail::RawVideoSourceWrapper::start()
69 {
70 stop_ = false;
71 hasError_ = false;
72 thread_.reset(new Thread(readLoop, this));
73 }
74
stop()75 void cv::cudacodec::detail::RawVideoSourceWrapper::stop()
76 {
77 stop_ = true;
78 thread_->wait();
79 thread_.release();
80 }
81
isStarted() const82 bool cv::cudacodec::detail::RawVideoSourceWrapper::isStarted() const
83 {
84 return !stop_;
85 }
86
hasError() const87 bool cv::cudacodec::detail::RawVideoSourceWrapper::hasError() const
88 {
89 return hasError_;
90 }
91
readLoop(void * userData)92 void cv::cudacodec::detail::RawVideoSourceWrapper::readLoop(void* userData)
93 {
94 RawVideoSourceWrapper* thiz = static_cast<RawVideoSourceWrapper*>(userData);
95
96 for (;;)
97 {
98 unsigned char* data;
99 int size;
100 bool endOfFile;
101
102 if (!thiz->source_->getNextPacket(&data, &size, &endOfFile))
103 {
104 thiz->hasError_ = !endOfFile;
105 break;
106 }
107
108 if (!thiz->parseVideoData(data, size))
109 {
110 thiz->hasError_ = true;
111 break;
112 }
113
114 if (thiz->stop_)
115 break;
116 }
117
118 thiz->parseVideoData(0, 0, true);
119 }
120
121 #endif // HAVE_NVCUVID
122