Vergil_Wong/lib_xua
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Underflow now provides zeros

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This commit is contained in:
Ed Clarke
2018-11-14 10:13:50 +00:00
parent d92614ced9
commit ad5c2e8583
1 changed files with 8 additions and 2 deletions
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10
examples/xua_lite_example/src/xua_buffer_lite.xc
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@@ -421,7 +421,10 @@ unsafe void XUA_Buffer_lite2(server ep0_control_if i_ep0_ctl, chanend c_aud_out,
if (output_interface_num == 0) num_samples_to_send_to_host = (DEFAULT_FREQ / SOF_FREQ_HZ) * NUM_USB_CHAN_IN;
fifo_ret_t ret = fifo_block_pop_short_fast(device_to_host_fifo_ptr, buffer_aud_in.short_words, num_samples_received_from_host);
if (ret != FIFO_SUCCESS) debug_printf("d2h empty\n");
if (ret != FIFO_SUCCESS) {
memset(buffer_aud_in.short_words, 0, sizeof(buffer_aud_in.short_words));
debug_printf("d2h empty\n");
}
//Populate the input buffer ready for the next read
//pack_samples_to_buff(loopback_samples, num_samples_to_send_to_host, in_subslot_size, buffer_aud_in);
@@ -442,7 +445,10 @@ unsafe void XUA_Buffer_lite2(server ep0_control_if i_ep0_ctl, chanend c_aud_out,
samples_in_short[i] = s_tmp >> 16;
}
fifo_ret_t ret = fifo_block_pop_short(host_to_device_fifo_ptr, samples_out_short, NUM_USB_CHAN_OUT);
if (ret != FIFO_SUCCESS && output_interface_num != 0) debug_printf("h2d empty\n");
if (ret != FIFO_SUCCESS && output_interface_num != 0) {
memset(samples_out_short, 0, sizeof(samples_out_short));
debug_printf("h2d empty\n");
}
for (int i = 0; i < NUM_USB_CHAN_OUT; i++) c_audio_hub <: (int)samples_out_short[i] << 16;
if (XUA_ADAPTIVE) c_audio_hub <: clock_nudge;
ret = fifo_block_push_short(device_to_host_fifo_ptr, samples_in_short, NUM_USB_CHAN_IN);