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| 1 | +#include<AvTranscoder/transcoder/Transcoder.hpp> |
| 2 | +#include<AvTranscoder/file/OutputFile.hpp> |
| 3 | +#include<AvTranscoder/progress/ConsoleProgress.hpp> |
| 4 | + |
| 5 | +#include<iostream> |
| 6 | +#include<iomanip> |
| 7 | +#include<vector> |
| 8 | +#include<fstream> |
| 9 | +#include<sstream> |
| 10 | +#include<cstdlib> |
| 11 | + |
| 12 | +std::vector<avtranscoder::InputStreamDesc>parseConfigFile(const std::string& configFilename) |
| 13 | +{ |
| 14 | + std::vector<avtranscoder::InputStreamDesc> result; |
| 15 | + |
| 16 | + std::ifstreamconfigFile(configFilename.c_str(), std::ifstream::in); |
| 17 | + |
| 18 | + std::string line; |
| 19 | +size_t countLines =0; |
| 20 | +while(std::getline(configFile, line)) |
| 21 | + { |
| 22 | +if(++countLines >2) |
| 23 | +throwstd::runtime_error("Audio phase analysis can only be done on a stereo pair, i.e. two channels (see usage)."); |
| 24 | + |
| 25 | + std::istringstreamis_line(line); |
| 26 | + std::string filename; |
| 27 | +if(std::getline(is_line, filename,'=')) |
| 28 | + { |
| 29 | + std::string stream; |
| 30 | +std::getline(is_line, stream); |
| 31 | + |
| 32 | + std::stringstreamss(stream); |
| 33 | +size_t streamIndex =0; |
| 34 | +char separator; |
| 35 | +int channelIndex = -1; |
| 36 | + ss >> streamIndex; |
| 37 | + ss >> separator; |
| 38 | +if(separator =='.') |
| 39 | + ss >> channelIndex; |
| 40 | + |
| 41 | +bool newInputDescAdded =false; |
| 42 | +// if we already have an input description with the same filename/streamIndex, add only the new channelIndex |
| 43 | +for(std::vector<avtranscoder::InputStreamDesc>::iterator it = result. begin(); it != result. end(); ++it) |
| 44 | + { |
| 45 | +if(it->_filename == filename && it->_streamIndex == streamIndex) |
| 46 | + { |
| 47 | + it->_channelIndexArray.push_back(channelIndex); |
| 48 | + newInputDescAdded =true; |
| 49 | +break; |
| 50 | + } |
| 51 | + } |
| 52 | +if(! newInputDescAdded) |
| 53 | + result.push_back(avtranscoder::InputStreamDesc(filename, streamIndex, channelIndex)); |
| 54 | + } |
| 55 | + } |
| 56 | + |
| 57 | + configFile.close(); |
| 58 | + |
| 59 | +return result; |
| 60 | +} |
| 61 | + |
| 62 | +voiddisplayUsage(const std::string& program) |
| 63 | +{ |
| 64 | + std::cout <<"Usage:" << program <<" CONFIG OUTPUT [OPTIONS]" << std::endl << std::endl; |
| 65 | + std::cout <<"\tCONFIG: input configuration file" << std::endl; |
| 66 | + std::cout <<"\t\tEach line represents one audio stream analysed." << std::endl; |
| 67 | + std::cout <<"\t\tPattern of each line is:" << std::endl; |
| 68 | + std::cout <<"\t\t[inputFile]=STREAM_INDEX.CHANNEL_INDEX" << std::endl; |
| 69 | + std::cout <<"\t\tWARNING: audio phase analyser only support stereo layout, i.e. two lines in this configuration." << std::endl << std::endl; |
| 70 | + std::cout <<"\tOUTPUT: metadata output file" << std::endl; |
| 71 | + std::cout <<"\t\tPattern for each frame is:" << std::endl; |
| 72 | + std::cout <<"\t\t `frame:[FRAME_ID] pts:[PTS] pts_time:[PTS_TIME]" << std::endl; |
| 73 | + std::cout <<"\t\t lavfi.aphasemeter.phase=[PHASE_VALUE]`" << std::endl << std::endl; |
| 74 | + std::cout <<"\tOPTIONS:" << std::endl; |
| 75 | + std::cout <<"\t\t--info set log level to AV_LOG_INFO" << std::endl; |
| 76 | + std::cout <<"\t\t--debug set log level to AV_LOG_DEBUG" << std::endl; |
| 77 | + std::cout <<"\t\t--help display this help" << std::endl << std::endl; |
| 78 | +} |
| 79 | + |
| 80 | +intmain(int argc,char** argv) |
| 81 | +{ |
| 82 | +// Preload FFmpeg context |
| 83 | +avtranscoder::preloadCodecsAndFormats(); |
| 84 | +avtranscoder::Logger::setLogLevel(AV_LOG_QUIET); |
| 85 | + |
| 86 | +if(argc <3) { |
| 87 | +displayUsage(argv[0]); |
| 88 | + } |
| 89 | + |
| 90 | +// List command line arguments |
| 91 | + std::vector<std::string> arguments; |
| 92 | +for(int argument =1; argument < argc; ++argument) |
| 93 | + { |
| 94 | + arguments.push_back(argv[argument]); |
| 95 | + } |
| 96 | +for(size_t argument =0; argument < arguments.size(); ++argument) |
| 97 | + { |
| 98 | +if(arguments.at(argument) =="--help") |
| 99 | + { |
| 100 | +displayUsage(argv[0]); |
| 101 | +return0; |
| 102 | + } |
| 103 | +elseif(arguments.at(argument) =="--debug") |
| 104 | + { |
| 105 | +avtranscoder::Logger::setLogLevel(AV_LOG_DEBUG); |
| 106 | + } |
| 107 | +elseif(arguments.at(argument) =="--info") |
| 108 | + { |
| 109 | +avtranscoder::Logger::setLogLevel(AV_LOG_INFO); |
| 110 | + } |
| 111 | + } |
| 112 | + |
| 113 | +try |
| 114 | + { |
| 115 | + std::stringconfigFilePath(arguments.at(0)); |
| 116 | + std::stringoutputFilePath(arguments.at(1)); |
| 117 | + std::vector<avtranscoder::InputStreamDesc> inputStreamsToAnalyse =parseConfigFile(configFilePath); |
| 118 | + |
| 119 | + avtranscoder::OutputFileoutputFile(outputFilePath,"null");// the output file will be overwritten by the extracted metadata |
| 120 | + |
| 121 | + avtranscoder::Transcodertranscoder(outputFile); |
| 122 | + transcoder.setProcessMethod(avtranscoder::eProcessMethodBasedOnStream,0); |
| 123 | + transcoder.addStream(inputStreamsToAnalyse); |
| 124 | + |
| 125 | + avtranscoder::StreamTranscoder& streamTranscoder = transcoder.getStreamTranscoder(0); |
| 126 | + avtranscoder::FilterGraph* filterGraph = streamTranscoder.getFilterGraph(); |
| 127 | + filterGraph->addFilter("aphasemeter","video=0"); |
| 128 | + filterGraph->addFilter("ametadata","mode=print:file=" + outputFilePath); |
| 129 | + |
| 130 | + avtranscoder::ConsoleProgress progress; |
| 131 | + transcoder.process(progress); |
| 132 | + } |
| 133 | +catch(std::exception& e) |
| 134 | + { |
| 135 | + std::cerr <<"ERROR: during process, an error occured:" << e.what() << std::endl; |
| 136 | + } |
| 137 | +catch(...) |
| 138 | + { |
| 139 | + std::cerr <<"ERROR: during process, an unknown error occured" << std::endl; |
| 140 | + } |
| 141 | +} |