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Cleanup audio_driver_readjust_input_rate

This commit is contained in:
twinaphex 2015-03-23 02:31:16 +01:00
parent b98d8a47cf
commit 4371a1dcdf
1 changed files with 15 additions and 14 deletions
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29
audio/audio_driver.c
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@ -458,6 +458,14 @@ bool audio_driver_mute_toggle(void)
return true;
}
static int audio_driver_write_avail(void)
{
driver_t *driver = driver_get_ptr();
if (driver && driver->audio && driver->audio->write_avail)
return driver->audio->write_avail(driver->audio_data);
return 0;
}
/*
* audio_driver_readjust_input_rate:
*
@ -465,29 +473,22 @@ bool audio_driver_mute_toggle(void)
*/
void audio_driver_readjust_input_rate(void)
{
double direction, adjust;
int half_size, delta_mid;
unsigned write_idx;
int avail = 0;
runloop_t *runloop = rarch_main_get_ptr();
driver_t *driver = driver_get_ptr();
global_t *global = global_get_ptr();
settings_t *settings = config_get_ptr();
avail = driver->audio->write_avail(driver->audio_data);
unsigned write_idx = runloop->measure_data.buffer_free_samples_count++ &
(AUDIO_BUFFER_FREE_SAMPLES_COUNT - 1);
int half_size = global->audio_data.driver_buffer_size / 2;
int avail = audio_driver_write_avail();
int delta_mid = avail - half_size;
double direction = (double)delta_mid / half_size;
double adjust = 1.0 + settings->audio.rate_control_delta * direction;
#if 0
RARCH_LOG_OUTPUT("Audio buffer is %u%% full\n",
(unsigned)(100 - (avail * 100) / global->audio_data.driver_buffer_size));
#endif
write_idx = runloop->measure_data.buffer_free_samples_count++ &
(AUDIO_BUFFER_FREE_SAMPLES_COUNT - 1);
half_size = global->audio_data.driver_buffer_size / 2;
delta_mid = avail - half_size;
direction = (double)delta_mid / half_size;
adjust = 1.0 + settings->audio.rate_control_delta * direction;
runloop->measure_data.buffer_free_samples[write_idx] = avail;
global->audio_data.src_ratio = global->audio_data.orig_src_ratio * adjust;