examples/alure-stream.cpp

   1 /*
   2  * A simple example showing how to stream a file through a source.
   3  */
   4
   5 #include <iostream>
   6 #include <sstream>
   7 #include <iomanip>
   8 #include <cstring>
   9 #include <thread>
  10 #include <chrono>
  11
  12 #include "alure2.h"
  13
  14 int main(int argc, char *argv[])
  15 {
  16     alure::DeviceManager devMgr = alure::DeviceManager::getInstance();
  17
  18     int fileidx = 1;
  19     alure::Device dev;
  20     if(argc > 3 && strcmp(argv[1], "-device") == 0)
  21     {
  22         fileidx = 3;
  23         dev = devMgr.openPlayback(argv[2], std::nothrow);
  24         if(!dev)
  25             std::cerr<< "Failed to open \""<<argv[2]<<"\" - trying default" <<std::endl;
  26     }
  27     if(!dev)
  28         dev = devMgr.openPlayback();
  29     std::cout<< "Opened \""<<dev.getName()<<"\"" <<std::endl;
  30
  31     alure::Context ctx = dev.createContext();
  32     alure::Context::MakeCurrent(ctx);
  33
  34     for(int i = fileidx;i < argc;i++)
  35     {
  36         alure::SharedPtr<alure::Decoder> decoder(ctx.createDecoder(argv[i]));
  37         alure::Source source = ctx.createSource();
  38
  39         source.play(decoder, 12000, 4);
  40         std::cout<< "Playing "<<argv[i]<<" ("<<alure::GetSampleTypeName(decoder->getSampleType())<<", "
  41                                              <<alure::GetChannelConfigName(decoder->getChannelConfig())<<", "
  42                                              <<decoder->getFrequency()<<"hz)" <<std::endl;
  43
  44         float invfreq = 1.0f / decoder->getFrequency();
  45         while(source.isPlaying())
  46         {
  47             std::cout<< "\r "<<std::fixed<<std::setprecision(2)<<
  48                         source.getSecOffset().count()<<" / "<<(decoder->getLength()*invfreq);
  49             std::cout.flush();
  50             std::this_thread::sleep_for(std::chrono::milliseconds(25));
  51             ctx.update();
  52         }
  53         std::cout<<std::endl;
  54
  55         source.release();
  56     }
  57
  58     alure::Context::MakeCurrent(nullptr);
  59     ctx.destroy();
  60     dev.close();
  61
  62     return 0;
  63 }