mirror of
https://github.com/opencv/opencv.git
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381 lines
12 KiB
C++
381 lines
12 KiB
C++
#include "opencv2/core/utility.hpp"
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#include "opencv2/imgproc.hpp"
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#include "opencv2/imgcodecs.hpp"
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#include "opencv2/highgui.hpp"
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#include <string>
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#include <iostream>
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#include <map>
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using namespace std;
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using namespace cv;
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//================================================================================
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template<typename M>
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inline typename M::mapped_type getValue(const M &dict, const typename M::key_type &key, const string & errorMessage)
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{
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typename M::const_iterator it = dict.find(key);
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if (it == dict.end())
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{
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CV_Error(Error::StsBadArg, errorMessage);
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}
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return it->second;
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}
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inline map<string, Size> sizeByResolution()
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{
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map<string, Size> res;
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res["720p"] = Size(1280, 720);
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res["1080p"] = Size(1920, 1080);
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res["4k"] = Size(3840, 2160);
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return res;
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}
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inline map<string, int> fourccByCodec()
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{
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map<string, int> res;
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res["h264"] = VideoWriter::fourcc('H','2','6','4');
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res["h265"] = VideoWriter::fourcc('H','E','V','C');
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res["mpeg2"] = VideoWriter::fourcc('M','P','E','G');
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res["mpeg4"] = VideoWriter::fourcc('M','P','4','2');
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res["mjpeg"] = VideoWriter::fourcc('M','J','P','G');
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res["vp8"] = VideoWriter::fourcc('V','P','8','0');
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return res;
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}
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inline map<string, string> defaultEncodeElementByCodec()
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{
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map<string, string> res;
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res["h264"] = "x264enc";
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res["h265"] = "x265enc";
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res["mpeg2"] = "mpeg2enc";
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res["mjpeg"] = "jpegenc";
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res["vp8"] = "vp8enc";
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return res;
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}
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inline map<string, string> VAAPIEncodeElementByCodec()
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{
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map<string, string> res;
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res["h264"] = "parsebin ! vaapih264enc";
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res["h265"] = "parsebin ! vaapih265enc";
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res["mpeg2"] = "parsebin ! vaapimpeg2enc";
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res["mjpeg"] = "parsebin ! vaapijpegenc";
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res["vp8"] = "parsebin ! vaapivp8enc";
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return res;
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}
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inline map<string, string> mfxDecodeElementByCodec()
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{
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map<string, string> res;
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res["h264"] = "parsebin ! mfxh264dec";
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res["h265"] = "parsebin ! mfxhevcdec";
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res["mpeg2"] = "parsebin ! mfxmpeg2dec";
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res["mjpeg"] = "parsebin ! mfxjpegdec";
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return res;
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}
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inline map<string, string> mfxEncodeElementByCodec()
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{
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map<string, string> res;
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res["h264"] = "mfxh264enc";
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res["h265"] = "mfxhevcenc";
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res["mpeg2"] = "mfxmpeg2enc";
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res["mjpeg"] = "mfxjpegenc";
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return res;
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}
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inline map<string, string> libavDecodeElementByCodec()
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{
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map<string, string> res;
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res["h264"] = "parsebin ! avdec_h264";
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res["h265"] = "parsebin ! avdec_h265";
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res["mpeg2"] = "parsebin ! avdec_mpeg2video";
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res["mpeg4"] = "parsebin ! avdec_mpeg4";
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res["mjpeg"] = "parsebin ! avdec_mjpeg";
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res["vp8"] = "parsebin ! avdec_vp8";
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return res;
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}
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inline map<string, string> libavEncodeElementByCodec()
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{
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map<string, string> res;
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res["h264"] = "avenc_h264";
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res["h265"] = "avenc_h265";
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res["mpeg2"] = "avenc_mpeg2video";
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res["mpeg4"] = "avenc_mpeg4";
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res["mjpeg"] = "avenc_mjpeg";
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res["vp8"] = "avenc_vp8";
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return res;
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}
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inline map<string, string> demuxPluginByContainer()
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{
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map<string, string> res;
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res["avi"] = "avidemux";
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res["mp4"] = "qtdemux";
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res["mov"] = "qtdemux";
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res["mkv"] = "matroskademux";
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return res;
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}
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inline map<string, string> muxPluginByContainer()
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{
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map<string, string> res;
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res["avi"] = "avimux";
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res["mp4"] = "qtmux";
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res["mov"] = "qtmux";
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res["mkv"] = "matroskamux";
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return res;
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}
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//================================================================================
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inline string containerByName(const string &name)
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{
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size_t found = name.rfind(".");
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if (found != string::npos)
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{
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return name.substr(found + 1); // container type
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}
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return string();
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}
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//================================================================================
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inline Ptr<VideoCapture> createCapture(const string &backend, const string &file_name, const string &codec)
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{
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if (backend == "gst-default")
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{
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cout << "Created GStreamer capture ( " << file_name << " )" << endl;
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return makePtr<VideoCapture>(file_name, CAP_GSTREAMER);
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}
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else if (backend.find("gst") == 0)
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{
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ostringstream line;
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line << "filesrc location=\"" << file_name << "\"";
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line << " ! ";
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line << getValue(demuxPluginByContainer(), containerByName(file_name), "Invalid container");
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line << " ! ";
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if (backend.find("basic") == 4)
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line << "decodebin";
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else if (backend.find("vaapi") == 4)
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line << "vaapidecodebin";
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else if (backend.find("libav") == 4)
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line << getValue(libavDecodeElementByCodec(), codec, "Invalid codec");
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else if (backend.find("mfx") == 4)
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line << getValue(mfxDecodeElementByCodec(), codec, "Invalid or unsupported codec");
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else
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return Ptr<VideoCapture>();
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line << " ! videoconvert n-threads=" << getNumThreads();
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line << " ! appsink sync=false";
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cout << "Created GStreamer capture ( " << line.str() << " )" << endl;
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return makePtr<VideoCapture>(line.str(), CAP_GSTREAMER);
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}
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else if (backend == "ffmpeg")
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{
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cout << "Created FFmpeg capture ( " << file_name << " )" << endl;
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return makePtr<VideoCapture>(file_name, CAP_FFMPEG);
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}
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return Ptr<VideoCapture>();
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}
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inline Ptr<VideoCapture> createSynthSource(Size sz, unsigned fps)
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{
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ostringstream line;
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line << "videotestsrc pattern=smpte";
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line << " ! video/x-raw";
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line << ",width=" << sz.width << ",height=" << sz.height;
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if (fps > 0)
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line << ",framerate=" << fps << "/1";
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line << " ! appsink sync=false";
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cout << "Created synthetic video source ( " << line.str() << " )" << endl;
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return makePtr<VideoCapture>(line.str(), CAP_GSTREAMER);
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}
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inline Ptr<VideoWriter> createWriter(const string &backend, const string &file_name, const string &codec, Size sz, unsigned fps)
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{
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if (backend == "gst-default")
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{
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cout << "Created GStreamer writer ( " << file_name << ", FPS=" << fps << ", Size=" << sz << ")" << endl;
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return makePtr<VideoWriter>(file_name, CAP_GSTREAMER, getValue(fourccByCodec(), codec, "Invalid codec"), fps, sz, true);
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}
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else if (backend.find("gst") == 0)
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{
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ostringstream line;
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line << "appsrc ! videoconvert n-threads=" << getNumThreads() << " ! ";
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if (backend.find("basic") == 4)
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line << getValue(defaultEncodeElementByCodec(), codec, "Invalid codec");
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else if (backend.find("vaapi") == 4)
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line << getValue(VAAPIEncodeElementByCodec(), codec, "Invalid codec");
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else if (backend.find("libav") == 4)
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line << getValue(libavEncodeElementByCodec(), codec, "Invalid codec");
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else if (backend.find("mfx") == 4)
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line << getValue(mfxEncodeElementByCodec(), codec, "Invalid codec");
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else
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return Ptr<VideoWriter>();
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line << " ! ";
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line << getValue(muxPluginByContainer(), containerByName(file_name), "Invalid container");
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line << " ! ";
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line << "filesink location=\"" << file_name << "\"";
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cout << "Created GStreamer writer ( " << line.str() << " )" << endl;
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return makePtr<VideoWriter>(line.str(), CAP_GSTREAMER, 0, fps, sz, true);
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}
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else if (backend == "ffmpeg")
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{
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cout << "Created FFmpeg writer ( " << file_name << ", FPS=" << fps << ", Size=" << sz << " )" << endl;
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return makePtr<VideoWriter>(file_name, CAP_FFMPEG, getValue(fourccByCodec(), codec, "Invalid codec"), fps, sz, true);
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}
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return Ptr<VideoWriter>();
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}
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//================================================================================
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int main(int argc, char *argv[])
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{
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const string keys =
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"{h help usage ? | | print help messages }"
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"{m mode |decode | coding mode (supported: encode, decode) }"
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"{b backend |default | video backend (supported: 'gst-default', 'gst-basic', 'gst-vaapi', 'gst-libav', 'gst-mfx', 'ffmpeg') }"
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"{c codec |h264 | codec name (supported: 'h264', 'h265', 'mpeg2', 'mpeg4', 'mjpeg', 'vp8') }"
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"{f file path | | path to file }"
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"{r resolution |720p | video resolution for encoding (supported: '720p', '1080p', '4k') }"
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"{fps |30 | fix frame per second for encoding (supported: fps > 0) }"
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"{fast | | fast measure fps }";
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CommandLineParser cmd_parser(argc, argv, keys);
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cmd_parser.about("This program measures performance of video encoding and decoding using different backends OpenCV.");
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if (cmd_parser.has("help"))
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{
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cmd_parser.printMessage();
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return 0;
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}
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bool fast_measure = cmd_parser.has("fast"); // fast measure fps
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unsigned fix_fps = cmd_parser.get<unsigned>("fps"); // fixed frame per second
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string backend = cmd_parser.get<string>("backend"); // video backend
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string mode = cmd_parser.get<string>("mode"); // coding mode
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string codec = cmd_parser.get<string>("codec"); // codec type
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string file_name = cmd_parser.get<string>("file"); // path to videofile
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string resolution = cmd_parser.get<string>("resolution"); // video resolution
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if (!cmd_parser.check())
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{
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cmd_parser.printErrors();
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return -1;
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}
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if (mode != "encode" && mode != "decode")
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{
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cout << "Unsupported mode: " << mode << endl;
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return -1;
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}
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if (mode == "decode")
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{
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file_name = samples::findFile(file_name);
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}
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cout << "Mode: " << mode << ", Backend: " << backend << ", File: " << file_name << ", Codec: " << codec << endl;
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TickMeter total;
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Ptr<VideoCapture> cap;
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Ptr<VideoWriter> wrt;
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try
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{
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if (mode == "decode")
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{
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cap = createCapture(backend, file_name, codec);
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if (!cap)
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{
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cout << "Failed to create video capture" << endl;
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return -3;
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}
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if (!cap->isOpened())
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{
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cout << "Capture is not opened" << endl;
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return -4;
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}
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}
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else if (mode == "encode")
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{
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Size sz = getValue(sizeByResolution(), resolution, "Invalid resolution");
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cout << "FPS: " << fix_fps << ", Frame size: " << sz << endl;
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cap = createSynthSource(sz, fix_fps);
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wrt = createWriter(backend, file_name, codec, sz, fix_fps);
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if (!cap || !wrt)
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{
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cout << "Failed to create synthetic video source or video writer" << endl;
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return -3;
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}
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if (!cap->isOpened() || !wrt->isOpened())
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{
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cout << "Synthetic video source or video writer is not opened" << endl;
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return -4;
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}
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}
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}
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catch (...)
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{
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cout << "Unsupported parameters" << endl;
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return -2;
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}
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TickMeter tick;
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Mat frame;
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Mat element;
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total.start();
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while(true)
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{
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if (mode == "decode")
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{
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tick.start();
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if (!cap->grab())
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{
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cout << "No more frames - break" << endl;
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break;
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}
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if (!cap->retrieve(frame))
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{
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cout << "Failed to retrieve frame - break" << endl;
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break;
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}
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if (frame.empty())
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{
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cout << "Empty frame received - break" << endl;
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break;
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}
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tick.stop();
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}
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else if (mode == "encode")
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{
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int limit = 100;
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while (!cap->grab() && --limit != 0)
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{
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cout << "Skipping empty input frame - " << limit << endl;
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}
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cap->retrieve(element);
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tick.start();
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*wrt << element;
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tick.stop();
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}
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if (fast_measure && tick.getCounter() >= 1000)
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{
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cout << "Fast mode frame limit reached - break" << endl;
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break;
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}
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if (mode == "encode" && tick.getCounter() >= 1000)
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{
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cout << "Encode frame limit reached - break" << endl;
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break;
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}
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}
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total.stop();
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if (tick.getCounter() == 0)
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{
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cout << "No frames have been processed" << endl;
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return -10;
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}
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else
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{
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double res_fps = tick.getCounter() / tick.getTimeSec();
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cout << tick.getCounter() << " frames in " << tick.getTimeSec() << " sec ~ " << res_fps << " FPS" << " (total time: " << total.getTimeSec() << " sec)" << endl;
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}
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return 0;
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}
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