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Set libao sample format to 16 bits

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Some plugins don't support 32 bit samples.
This commit is contained in:
Anton Yabchinskiy 2014-11-22 17:37:27 +03:00
parent ba6d83f3e1
commit e58731ee01
1 changed files with 13 additions and 5 deletions
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18
drivers/ao/audio_driver_ao.cpp
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@ -45,7 +45,7 @@ Error AudioDriverAO::init() {
ao_sample_format format;
format.bits = 32;
format.bits = 16;
format.rate = mix_rate;
format.channels = channels;
format.byte_format = AO_FMT_LITTLE;
@ -68,19 +68,27 @@ Error AudioDriverAO::init() {
void AudioDriverAO::thread_func(void* p_udata) {
AudioDriverAO* ad = (AudioDriverAO*)p_udata;
int16_t* samples_out = samples_in; // Overwrite samples on conversion
unsigned int n_samples = ad->buffer_size * ad->channels;
unsigned int n_bytes = n_samples * sizeof(int16_t);
while (!ad->exit_thread) {
if (ad->active) {
ad->lock();
ad->audio_server_process(ad->buffer_size, ad->samples_in);
ad->unlock();
};
for (unsigned int i = 0; i < n_samples; i++) {
samples_out[i] = ad->samples_in[i] >> 16;
}
} else {
memset(samples_out, 0, n_bytes);
}
if (ad->exit_thread)
break;
if (!ao_play(ad->device, reinterpret_cast<char*>(ad->samples_in),
ad->buffer_size * ad->channels * sizeof(int32_t)))
{
if (!ao_play(ad->device, reinterpret_cast<char*>(samples_out), n_bytes) {
ERR_PRINT("ao_play() failed");
}
};