Minor improvement to the simple_playback_sine example.

examples/simple_playback_sine.c

@@ -52,9 +52,6 @@ int main(int argc, char** argv)
     ma_device device;
     ma_waveform_config sineWaveConfig;
 
-    sineWaveConfig = ma_waveform_config_init(DEVICE_FORMAT, DEVICE_CHANNELS, DEVICE_SAMPLE_RATE, ma_waveform_type_sine, 0.2, 220);
-    ma_waveform_init(&sineWaveConfig, &sineWave);
-
     deviceConfig = ma_device_config_init(ma_device_type_playback);
     deviceConfig.playback.format   = DEVICE_FORMAT;
     deviceConfig.playback.channels = DEVICE_CHANNELS;
@@ -69,6 +66,9 @@ int main(int argc, char** argv)
 
     printf("Device Name: %s\n", device.playback.name);
 
+    sineWaveConfig = ma_waveform_config_init(device.playback.format, device.playback.channels, device.sampleRate, ma_waveform_type_sine, 0.2, 220);
+    ma_waveform_init(&sineWaveConfig, &sineWave);
+
     if (ma_device_start(&device) != MA_SUCCESS) {
         printf("Failed to start playback device.\n");
         ma_device_uninit(&device);