kc3-lang/SDL/test/testaudioinfo.c

Branch : - branch - v2.28 - tag -

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• Author : Sam Lantinga
  Date : 2020-01-16 20:49:25
  Hash : a8780c6a
  Message : Updated copyright date for 2020

• test/testaudioinfo.c

• /*
    Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
  
    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any damages
    arising from the use of this software.
  
    Permission is granted to anyone to use this software for any purpose,
    including commercial applications, and to alter it and redistribute it
    freely.
  */
  #include <stdio.h>
  #include "SDL.h"
  
  static void
  print_devices(int iscapture)
  {
      const char *typestr = ((iscapture) ? "capture" : "output");
      int n = SDL_GetNumAudioDevices(iscapture);
  
      SDL_Log("Found %d %s device%s:\n", n, typestr, n != 1 ? "s" : "");
  
      if (n == -1)
          SDL_Log("  Driver can't detect specific %s devices.\n\n", typestr);
      else if (n == 0)
          SDL_Log("  No %s devices found.\n\n", typestr);
      else {
          int i;
          for (i = 0; i < n; i++) {
              const char *name = SDL_GetAudioDeviceName(i, iscapture);
              if (name != NULL)
                  SDL_Log("  %d: %s\n", i, name);
              else
                  SDL_Log("  %d Error: %s\n", i, SDL_GetError());
          }
          SDL_Log("\n");
      }
  }
  
  int
  main(int argc, char **argv)
  {
      int n;
  
      /* Enable standard application logging */
      SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
  
      /* Load the SDL library */
      if (SDL_Init(SDL_INIT_AUDIO) < 0) {
          SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
          return (1);
      }
  
      /* Print available audio drivers */
      n = SDL_GetNumAudioDrivers();
      if (n == 0) {
          SDL_Log("No built-in audio drivers\n\n");
      } else {
          int i;
          SDL_Log("Built-in audio drivers:\n");
          for (i = 0; i < n; ++i) {
              SDL_Log("  %d: %s\n", i, SDL_GetAudioDriver(i));
          }
          SDL_Log("Select a driver with the SDL_AUDIODRIVER environment variable.\n");
      }
  
      SDL_Log("Using audio driver: %s\n\n", SDL_GetCurrentAudioDriver());
  
      print_devices(0);
      print_devices(1);
  
      SDL_Quit();
      return 0;
  }