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File Input and record: 16/24 bit DSP compatibility

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This commit is contained in:
f4exb
2018-01-25 18:39:54 +01:00
parent 810ca8b057
commit 12a97b9644
7 changed files with 127 additions and 41 deletions
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plugins/samplesource/filesource/filesourcethread.cpp
+100 -27
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@@ -27,12 +27,15 @@ FileSourceThread::FileSourceThread(std::ifstream *samplesStream, SampleSinkFifo*
QThread(parent),
m_running(false),
m_ifstream(samplesStream),
m_buf(0),
m_fileBuf(0),
m_convertBuf(0),
m_bufsize(0),
m_chunksize(0),
m_sampleFifo(sampleFifo),
m_samplesCount(0),
m_samplerate(0),
m_samplesize(0),
m_samplebytes(0),
m_throttlems(FILESOURCE_THROTTLE_MS),
m_throttleToggle(false)
{
@@ -45,8 +48,12 @@ FileSourceThread::~FileSourceThread()
stopWork();
}
if (m_buf != 0) {
free(m_buf);
if (m_fileBuf != 0) {
free(m_fileBuf);
}
if (m_convertBuf != 0) {
free(m_convertBuf);
}
}
@@ -77,49 +84,67 @@ void FileSourceThread::stopWork()
wait();
}
void FileSourceThread::setSamplerate(int samplerate)
void FileSourceThread::setSampleRateAndSize(int samplerate, quint32 samplesize)
{
qDebug() << "FileSourceThread::setSamplerate:"
<< " new:" << samplerate
<< " old:" << m_samplerate;
qDebug() << "FileSourceThread::setSampleRateAndSize:"
<< " new rate:" << samplerate
<< " new size:" << samplesize
<< " old rate:" << m_samplerate
<< " old size:" << m_samplesize;
if (samplerate != m_samplerate)
if ((samplerate != m_samplerate) || (samplesize != m_samplesize))
{
if (m_running) {
stopWork();
}
m_samplerate = samplerate;
// TODO: implement FF and slow motion here. 4 corresponds to live. 2 is half speed, 8 is doulbe speed
m_chunksize = (m_samplerate * 4 * m_throttlems) / 1000;
m_samplesize = samplesize;
m_samplebytes = m_samplesize > 16 ? sizeof(int32_t) : sizeof(int16_t);
// TODO: implement FF and slow motion here. 2 corresponds to live. 1 is half speed, 4 is double speed
m_chunksize = (m_samplerate * 2 * m_samplebytes * m_throttlems) / 1000;
setBuffer(m_chunksize);
setBuffers(m_chunksize);
}
//m_samplerate = samplerate;
}
void FileSourceThread::setBuffer(std::size_t chunksize)
void FileSourceThread::setBuffers(std::size_t chunksize)
{
if (chunksize > m_bufsize)
{
m_bufsize = chunksize;
int nbSamples = m_bufsize/(2 * m_samplebytes);
if (m_buf == 0)
if (m_fileBuf == 0)
{
qDebug() << "FileSourceThread::setBuffer: Allocate buffer";
m_buf = (quint8*) malloc(m_bufsize);
qDebug() << "FileSourceThread::setBuffers: Allocate file buffer";
m_fileBuf = (quint8*) malloc(m_bufsize);
}
else
{
qDebug() << "FileSourceThread::setBuffer: Re-allocate buffer";
quint8 *buf = m_buf;
m_buf = (quint8*) realloc((void*) m_buf, m_bufsize);
if (!m_buf) free(buf);
qDebug() << "FileSourceThread::setBuffers: Re-allocate file buffer";
quint8 *buf = m_fileBuf;
m_fileBuf = (quint8*) realloc((void*) m_fileBuf, m_bufsize);
if (!m_fileBuf) free(buf);
}
qDebug() << "FileSourceThread::setBuffer: size: " << m_bufsize
<< " #samples: " << (m_bufsize/4);
if (m_convertBuf == 0)
{
qDebug() << "FileSourceThread::setBuffers: Allocate conversion buffer";
m_convertBuf = (quint8*) malloc(nbSamples*sizeof(Sample));
}
else
{
qDebug() << "FileSourceThread::setBuffers: Re-allocate conversion buffer";
quint8 *buf = m_convertBuf;
m_convertBuf = (quint8*) realloc((void*) m_convertBuf, nbSamples*sizeof(Sample));
if (!m_convertBuf) free(buf);
}
qDebug() << "FileSourceThread::setBuffers: size: " << m_bufsize
<< " #samples: " << nbSamples;
}
}
@@ -151,17 +176,18 @@ void FileSourceThread::tick()
if (throttlems != m_throttlems)
{
m_throttlems = throttlems;
m_chunksize = 4 * ((m_samplerate * (m_throttlems+(m_throttleToggle ? 1 : 0))) / 1000);
m_chunksize = 2 * m_samplebytes * ((m_samplerate * (m_throttlems+(m_throttleToggle ? 1 : 0))) / 1000);
m_throttleToggle = !m_throttleToggle;
setBuffer(m_chunksize);
setBuffers(m_chunksize);
}
// read samples directly feeding the SampleFifo (no callback)
m_ifstream->read(reinterpret_cast<char*>(m_buf), m_chunksize);
m_ifstream->read(reinterpret_cast<char*>(m_fileBuf), m_chunksize);
if (m_ifstream->eof())
{
m_sampleFifo->write(m_buf, m_ifstream->gcount());
writeToSampleFifo(m_fileBuf, (qint32) m_ifstream->gcount());
//m_sampleFifo->write(m_buf, m_ifstream->gcount());
// TODO: handle loop playback situation
m_ifstream->clear();
m_ifstream->seekg(sizeof(FileRecord::Header), std::ios::beg);
@@ -171,8 +197,55 @@ void FileSourceThread::tick()
}
else
{
m_sampleFifo->write(m_buf, m_chunksize);
m_samplesCount += m_chunksize / 4;
writeToSampleFifo(m_fileBuf, (qint32) m_chunksize);
//m_sampleFifo->write(m_buf, m_chunksize);
m_samplesCount += m_chunksize / (2 * m_samplebytes);
}
}
}
void FileSourceThread::writeToSampleFifo(const quint8* buf, qint32 nbBytes)
{
if (m_samplesize == 16)
{
if (SDR_RX_SAMP_SZ == 16)
{
m_sampleFifo->write(buf, nbBytes);
}
else if (SDR_RX_SAMP_SZ == 24)
{
FixReal *convertBuf = (FixReal *) m_convertBuf;
const int16_t *fileBuf = (int16_t *) buf;
int nbSamples = nbBytes / (2 * m_samplebytes);
for (int is = 0; is < nbSamples; is++)
{
convertBuf[2*is] = fileBuf[2*is] << 8;
convertBuf[2*is+1] = fileBuf[2*is+1] << 8;
}
m_sampleFifo->write((quint8*) convertBuf, nbSamples*sizeof(Sample));
}
}
else if (m_samplesize == 24)
{
if (SDR_RX_SAMP_SZ == 24)
{
m_sampleFifo->write(buf, nbBytes);
}
else if (SDR_RX_SAMP_SZ == 16)
{
FixReal *convertBuf = (FixReal *) m_convertBuf;
const int32_t *fileBuf = (int32_t *) buf;
int nbSamples = nbBytes / (2 * m_samplebytes);
for (int is = 0; is < nbSamples; is++)
{
convertBuf[2*is] = fileBuf[2*is] >> 8;
convertBuf[2*is+1] = fileBuf[2*is+1] >> 8;
}
m_sampleFifo->write((quint8*) convertBuf, nbSamples*sizeof(Sample));
}
}
}