andy/tinyUSB
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Fix HS playback on OSX.

Browse Source
This commit is contained in:
HiFiPhile
2024-05-12 18:59:32 +02:00
parent d54a1578aa
commit 67456357c5
1 changed files with 7 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
src/class/audio/audio_device.c
View File

@@ -2050,7 +2050,7 @@ static bool audiod_set_interface(uint8_t rhport, tusb_control_request_t const *
case AUDIO_FEEDBACK_METHOD_FIFO_COUNT:
{
/* Initialize the threshold level to half filled */
// Initialize the threshold level to half filled
uint16_t fifo_lvl_thr;
#if CFG_TUD_AUDIO_ENABLE_DECODING
fifo_lvl_thr = tu_fifo_depth(&audio->rx_supp_ff[0]) / 2;
@@ -2059,11 +2059,16 @@ static bool audiod_set_interface(uint8_t rhport, tusb_control_request_t const *
#endif
audio->feedback.compute.fifo_count.fifo_lvl_thr = fifo_lvl_thr;
audio->feedback.compute.fifo_count.fifo_lvl_avg = ((uint32_t)fifo_lvl_thr) << 16;
/* Avoid 64bit division */
// Avoid 64bit division
uint32_t nominal = ((fb_param.sample_freq / 100) << 16) / (frame_div / 100);
audio->feedback.compute.fifo_count.nom_value = nominal;
audio->feedback.compute.fifo_count.rate_const[0] = (audio->feedback.max_value - nominal) / fifo_lvl_thr;
audio->feedback.compute.fifo_count.rate_const[1] = (nominal - audio->feedback.min_value) / fifo_lvl_thr;
// On HS feedback is more sensitive since packet size can vary every MSOF, could cause instability
if(tud_speed_get() == TUSB_SPEED_HIGH) {
audio->feedback.compute.fifo_count.rate_const[0] /= 8;
audio->feedback.compute.fifo_count.rate_const[1] /= 8;
}
}
break;