/* Send a timestamped chunk to the device */
void RadioInterfaceResamp::pushBuffer()
{
int rc, chunks, num_sent;
int inner_len, outer_len;
if (sendCursor < resamp_inchunk)
return;
if (sendCursor > innerSendBuffer->size())
LOG(ALERT) << "Send buffer overflow";
chunks = sendCursor / resamp_inchunk;
inner_len = chunks * resamp_inchunk;
outer_len = chunks * resamp_outchunk;
/* Always send from the beginning of the buffer */
rc = upsampler->rotate((float *) innerSendBuffer->begin(), inner_len,
(float *) outerSendBuffer->begin(), outer_len);
if (rc < 0) {
LOG(ALERT) << "Sample rate downsampling error";
}
convert_float_short(convertSendBuffer[0],
(float *) outerSendBuffer->begin(),
powerScaling[0], 2 * outer_len);
num_sent = mRadio->writeSamples(convertSendBuffer,
outer_len,
&underrun,
writeTimestamp);
if (num_sent != outer_len) {
LOG(ALERT) << "Transmit error " << num_sent;
}
/* Shift remaining samples to beginning of buffer */
memmove(innerSendBuffer->begin(),
innerSendBuffer->begin() + inner_len,
(sendCursor - inner_len) * 2 * sizeof(float));
writeTimestamp += outer_len;
sendCursor -= inner_len;
assert(sendCursor >= 0);
}
/* Send timestamped chunk to the device with arbitrary size */
bool RadioInterface::pushBuffer()
{
size_t numSent, segmentLen = sendBuffer[0]->getSegmentLen();
if (sendBuffer[0]->getAvailSegments() < 1)
return false;
for (size_t i = 0; i < mChans; i++) {
convert_float_short(convertSendBuffer[i],
(float *) sendBuffer[i]->getReadSegment(),
powerScaling[i],
segmentLen * 2);
}
/* Send the all samples in the send buffer */
numSent = mRadio->writeSamples(convertSendBuffer,
segmentLen,
&underrun,
writeTimestamp);
writeTimestamp += numSent;
return true;
}
/* Send timestamped chunk to the device with arbitrary size */
void RadioInterface::pushBuffer()
{
int num_sent;
if (sendCursor < CHUNK)
return;
if (sendCursor > sendBuffer[0]->size())
LOG(ALERT) << "Send buffer overflow";
for (size_t i = 0; i < mChans; i++) {
convert_float_short(convertSendBuffer[i],
(float *) sendBuffer[i]->begin(),
powerScaling[i], 2 * sendCursor);
}
/* Send the all samples in the send buffer */
num_sent = mRadio->writeSamples(convertSendBuffer,
sendCursor,
&underrun,
writeTimestamp);
writeTimestamp += num_sent;
sendCursor = 0;
}
