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Update simple playback example.

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David Reid
2019-02-24 21:01:53 +10:00
parent 08e21aae05
commit 9ed608a452
4 changed files with 49 additions and 42 deletions
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mini_al.h
+16 -11
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@@ -50,24 +50,29 @@ of capture.
Playback Example
----------------
mal_uint32 on_send_samples(mal_device* pDevice, mal_uint32 frameCount, void* pSamples)
void data_callback(mal_device* pDevice, void* pOutput, const void* pInput, mal_uint32 frameCount)
{
// This callback is set at initialization time and will be called when a playback device needs more
// data. You need to write as many frames as you can to pSamples (but no more than frameCount) and
// then return the number of frames you wrote.
//
// The user data (pDevice->pUserData) is set by mal_device_init().
return (mal_uint32)mal_decoder_read_pcm_frames((mal_decoder*)pDevice->pUserData, frameCount, pSamples);
mal_decoder* pDecoder = (mal_decoder*)pDevice->pUserData;
if (pDecoder == NULL) {
return;
}
mal_decoder_read_pcm_frames(pDecoder, frameCount, pOutput);
}
...
mal_device_config config = mal_device_config_init_playback(decoder.outputFormat, decoder.outputChannels, decoder.outputSampleRate, on_send_frames_to_device, &decoder);
mal_device_config config = mal_device_config_init(mal_device_type_playback);
config.playback.pDeviceID = NULL;
config.playback.format = decoder.outputFormat;
config.playback.channels = decoder.outputChannels;
config.sampleRate = decoder.outputSampleRate;
config.dataCallback = data_callback;
config.pUserData = &decoder;
mal_device device;
mal_result result = mal_device_init(NULL, mal_device_type_playback, NULL, &config, &device);
if (result != MAL_SUCCESS) {
return -1;
if (mal_device_init(NULL, &config, &device) != MAL_SUCCESS) {
... An error occurred ...
}
mal_device_start(&device); // The device is sleeping by default so you'll need to start it manually.