Update loopback example to use the ma_encoder API.

examples/simple_loopback.c

@@ -6,21 +6,21 @@ To use loopback mode you just need to set the device type to ma_device_type_loop
 properties. The output buffer in the callback will be null whereas the input buffer will be valid.
 */
 
-#define MINIAUDIO_IMPLEMENTATION
-#include "../miniaudio.h"
-
 #define DR_WAV_IMPLEMENTATION
 #include "../extras/dr_wav.h"
 
+#define MINIAUDIO_IMPLEMENTATION
+#include "../miniaudio.h"
+
 #include <stdlib.h>
 #include <stdio.h>
 
 void data_callback(ma_device* pDevice, void* pOutput, const void* pInput, ma_uint32 frameCount)
 {
-    drwav* pWav = (drwav*)pDevice->pUserData;
-    MA_ASSERT(pWav != NULL);
+    ma_encoder* pEncoder = (ma_encoder*)pDevice->pUserData;
+    MA_ASSERT(pEncoder != NULL);
 
-    drwav_write_pcm_frames(pWav, frameCount, pInput);
+    ma_encoder_write_pcm_frames(pEncoder, pInput, frameCount);
 
     (void)pOutput;
 }
@@ -28,8 +28,8 @@ void data_callback(ma_device* pDevice, void* pOutput, const void* pInput, ma_uin
 int main(int argc, char** argv)
 {
     ma_result result;
-    drwav_data_format wavFormat;
-    drwav wav;
+    ma_encoder_config encoderConfig;
+    ma_encoder encoder;
     ma_device_config deviceConfig;
     ma_device device;
 
@@ -43,24 +43,20 @@ int main(int argc, char** argv)
         return -1;
     }
 
-    wavFormat.container     = drwav_container_riff;
-    wavFormat.format        = DR_WAVE_FORMAT_IEEE_FLOAT;
-    wavFormat.channels      = 2;
-    wavFormat.sampleRate    = 44100;
-    wavFormat.bitsPerSample = 32;
+    encoderConfig = ma_encoder_config_init(ma_resource_format_wav, ma_format_f32, 2, 44100);
 
-    if (drwav_init_file_write(&wav, argv[1], &wavFormat, NULL) == DRWAV_FALSE) {
+    if (ma_encoder_init_file(argv[1], &encoderConfig, &encoder) != MA_SUCCESS) {
         printf("Failed to initialize output file.\n");
         return -1;
     }
 
     deviceConfig = ma_device_config_init(ma_device_type_loopback);
     deviceConfig.capture.pDeviceID = NULL; /* Use default device for this example. Set this to the ID of a _playback_ device if you want to capture from a specific device. */
-    deviceConfig.capture.format    = ma_format_f32;
-    deviceConfig.capture.channels  = wavFormat.channels;
-    deviceConfig.sampleRate        = wavFormat.sampleRate;
+    deviceConfig.capture.format    = encoder.config.format;
+    deviceConfig.capture.channels  = encoder.config.channels;
+    deviceConfig.sampleRate        = encoder.config.sampleRate;
     deviceConfig.dataCallback      = data_callback;
-    deviceConfig.pUserData         = &wav;
+    deviceConfig.pUserData         = &encoder;
 
     result = ma_device_init_ex(backends, sizeof(backends)/sizeof(backends[0]), NULL, &deviceConfig, &device);
     if (result != MA_SUCCESS) {
@@ -79,7 +75,7 @@ int main(int argc, char** argv)
     getchar();
     
     ma_device_uninit(&device);
-    drwav_uninit(&wav);
+    ma_encoder_uninit(&encoder);
 
     return 0;
 }