usb-mic: quick test with sending only 1ms worth of samples for 48kHz …

…and 8kHz
jackun · Feb 18, 2021 · bc5c83a · bc5c83a
1 parent bb5a333
commit bc5c83a
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/usb-mic/usb-mic-singstar.cpp b/src/usb-mic/usb-mic-singstar.cpp
@@ -745,6 +745,11 @@ static void singstar_mic_handle_data(USBDevice *dev, USBPacket *p)
 			int16_t *dst = nullptr;
 			std::vector<int16_t> dst_alloc(0); //TODO
 			size_t len = p->iov.size;
+
+			// send only 1ms (bInterval) of samples
+			if (s->f.srate[0] == 48000 || s->f.srate[0] == 8000) // TODO others don't divide so nicely
+				len = std::min(p->iov.size, outChns * sizeof(int16_t) * s->f.srate[0] / 1000);
+
 			//Divide 'len' bytes between 2 channels of 16 bits
 			uint32_t max_frames = len / (outChns * sizeof(uint16_t));