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Add instant replay

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This commit is contained in:
srcejon
2023-11-22 14:28:35 +00:00
parent cbab429395
commit 7cc9cd1bf1
41 changed files with 2270 additions and 460 deletions
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plugins/samplesource/usrpinput/usrpinputthread.cpp
+61 -29
View File
@@ -26,13 +26,15 @@
#include "usrpinputsettings.h"
#include "usrpinputthread.h"
USRPInputThread::USRPInputThread(uhd::rx_streamer::sptr stream, size_t bufSamples, SampleSinkFifo* sampleFifo, QObject* parent) :
USRPInputThread::USRPInputThread(uhd::rx_streamer::sptr stream, size_t bufSamples,
SampleSinkFifo* sampleFifo, ReplayBuffer<qint16> *replayBuffer, QObject* parent) :
QThread(parent),
m_running(false),
m_stream(stream),
m_bufSamples(bufSamples),
m_convertBuffer(bufSamples),
m_sampleFifo(sampleFifo),
m_replayBuffer(replayBuffer),
m_log2Decim(0)
{
// *2 as samples are I+Q
@@ -53,8 +55,15 @@ void USRPInputThread::issueStreamCmd(bool start)
stream_cmd.stream_now = true;
stream_cmd.time_spec = uhd::time_spec_t();
m_stream->issue_stream_cmd(stream_cmd);
qDebug() << "USRPInputThread::issueStreamCmd " << (start ? "start" : "stop");
if (m_stream)
{
m_stream->issue_stream_cmd(stream_cmd);
qDebug() << "USRPInputThread::issueStreamCmd " << (start ? "start" : "stop");
}
else
{
qDebug() << "USRPInputThread::issueStreamCmd m_stream is null";
}
}
void USRPInputThread::startWork()
@@ -184,37 +193,60 @@ void USRPInputThread::run()
}
// Decimate according to specified log2 (ex: log2=4 => decim=16)
void USRPInputThread::callbackIQ(const qint16* buf, qint32 len)
void USRPInputThread::callbackIQ(const qint16* inBuf, qint32 len)
{
SampleVector::iterator it = m_convertBuffer.begin();
switch (m_log2Decim)
{
case 0:
m_decimatorsIQ.decimate1(&it, buf, len);
break;
case 1:
m_decimatorsIQ.decimate2_cen(&it, buf, len);
break;
case 2:
m_decimatorsIQ.decimate4_cen(&it, buf, len);
break;
case 3:
m_decimatorsIQ.decimate8_cen(&it, buf, len);
break;
case 4:
m_decimatorsIQ.decimate16_cen(&it, buf, len);
break;
case 5:
m_decimatorsIQ.decimate32_cen(&it, buf, len);
break;
case 6:
m_decimatorsIQ.decimate64_cen(&it, buf, len);
break;
default:
break;
// Save data to replay buffer
m_replayBuffer->lock();
bool replayEnabled = m_replayBuffer->getSize() > 0;
if (replayEnabled) {
m_replayBuffer->write(inBuf, len);
}
const qint16* buf = inBuf;
qint32 remaining = len;
while (remaining > 0)
{
// Choose between live data or replayed data
if (replayEnabled && m_replayBuffer->useReplay()) {
len = m_replayBuffer->read(remaining, buf);
} else {
len = remaining;
}
remaining -= len;
switch (m_log2Decim)
{
case 0:
m_decimatorsIQ.decimate1(&it, buf, len);
break;
case 1:
m_decimatorsIQ.decimate2_cen(&it, buf, len);
break;
case 2:
m_decimatorsIQ.decimate4_cen(&it, buf, len);
break;
case 3:
m_decimatorsIQ.decimate8_cen(&it, buf, len);
break;
case 4:
m_decimatorsIQ.decimate16_cen(&it, buf, len);
break;
case 5:
m_decimatorsIQ.decimate32_cen(&it, buf, len);
break;
case 6:
m_decimatorsIQ.decimate64_cen(&it, buf, len);
break;
default:
break;
}
}
m_replayBuffer->unlock();
m_sampleFifo->write(m_convertBuffer.begin(), it);
}