添加一些关于midi播放的项目

2025-03-24 14:30:56 +08:00
parent e31eb22077
commit 498b4ef13b
699 changed files with 186162 additions and 1 deletions
@@ -0,0 +1,104 @@
+/******************************************/
+/*
+  audioprobe.cpp
+  by Gary P. Scavone, 2001
+
+  Probe audio system and prints device info.
+*/
+/******************************************/
+
+#include "RtAudio.h"
+#include <iostream>
+#include <map>
+
+std::vector< RtAudio::Api > listApis()
+{
+  std::vector< RtAudio::Api > apis;
+  RtAudio :: getCompiledApi( apis );
+
+  std::cout << "\nCompiled APIs:\n";
+  for ( size_t i=0; i<apis.size(); i++ )
+    std::cout << i << ". " << RtAudio::getApiDisplayName(apis[i])
+              << " (" << RtAudio::getApiName(apis[i]) << ")" << std::endl;
+
+  return apis;
+}
+
+void listDevices(RtAudio::Api api)
+{
+  RtAudio audio(api);
+  RtAudio::DeviceInfo info;
+
+  std::cout << "\nAPI: " << RtAudio::getApiDisplayName(audio.getCurrentApi()) << std::endl;
+
+  unsigned int devices = audio.getDeviceCount();
+  std::cout << "\nFound " << devices << " device(s) ...\n";
+
+  for (unsigned int i=0; i<devices; i++) {
+    info = audio.getDeviceInfo(i);
+
+    std::cout << "\nDevice Name = " << info.name << '\n';
+    std::cout << "Device ID = " << i << '\n';
+    if ( info.probed == false )
+      std::cout << "Probe Status = UNsuccessful\n";
+    else {
+      std::cout << "Probe Status = Successful\n";
+      std::cout << "Output Channels = " << info.outputChannels << '\n';
+      std::cout << "Input Channels = " << info.inputChannels << '\n';
+      std::cout << "Duplex Channels = " << info.duplexChannels << '\n';
+      if ( info.isDefaultOutput ) std::cout << "This is the default output device.\n";
+      else std::cout << "This is NOT the default output device.\n";
+      if ( info.isDefaultInput ) std::cout << "This is the default input device.\n";
+      else std::cout << "This is NOT the default input device.\n";
+      if ( info.nativeFormats == 0 )
+        std::cout << "No natively supported data formats(?)!";
+      else {
+        std::cout << "Natively supported data formats:\n";
+        if ( info.nativeFormats & RTAUDIO_SINT8 )
+          std::cout << "  8-bit int\n";
+        if ( info.nativeFormats & RTAUDIO_SINT16 )
+          std::cout << "  16-bit int\n";
+        if ( info.nativeFormats & RTAUDIO_SINT24 )
+          std::cout << "  24-bit int\n";
+        if ( info.nativeFormats & RTAUDIO_SINT32 )
+          std::cout << "  32-bit int\n";
+        if ( info.nativeFormats & RTAUDIO_FLOAT32 )
+          std::cout << "  32-bit float\n";
+        if ( info.nativeFormats & RTAUDIO_FLOAT64 )
+          std::cout << "  64-bit float\n";
+      }
+      if ( info.sampleRates.size() < 1 )
+        std::cout << "No supported sample rates found!";
+      else {
+        std::cout << "Supported sample rates = ";
+        for (unsigned int j=0; j<info.sampleRates.size(); j++)
+          std::cout << info.sampleRates[j] << " ";
+      }
+      std::cout << std::endl;
+      if ( info.preferredSampleRate == 0 )
+        std::cout << "No preferred sample rate found!" << std::endl;
+      else
+        std::cout << "Preferred sample rate = " << info.preferredSampleRate << std::endl;
+    }
+  }
+}
+
+int main(int argc, char *argv[])
+{
+  std::cout << "\nRtAudio Version " << RtAudio::getVersion() << std::endl;
+
+  std::vector< RtAudio::Api > apis = listApis();
+
+  for ( size_t api=0; api < apis.size(); api++ )
+  {
+    errno = 0;
+    char *s;
+    if (argc < 2
+        || apis[api] == RtAudio::getCompiledApiByName(argv[1])
+        || (api == std::strtoul(argv[1], &s, 10) && argv[1] != s && !errno))
+      listDevices(apis[api]);
+  }
+  std::cout << std::endl;
+
+  return 0;
+}