VE7UWU/sdrangel
1
0
Fork 0
mirror of https://github.com/f4exb/sdrangel.git synced 2026-06-03 06:24:48 -04:00
Code Issues Projects Releases Wiki Activity

FileSource: calculate file record length down to the microsecond. Implements #614

Browse Source
This commit is contained in:
f4exb
2020-08-26 00:13:01 +02:00
parent d15e559e54
commit 555aae2c19
8 changed files with 27 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files
plugins/channeltx/filesource/filesourcesource.cpp
+9 -8
View File
@@ -43,7 +43,7 @@ FileSourceSource::FileSourceSource() :
m_samplesCount(0),
m_sampleRate(0),
m_deviceSampleRate(0),
m_recordLength(0),
m_recordLengthMuSec(0),
m_startingTimeStamp(0),
m_running(false),
m_guiMessageQueue(nullptr)
@@ -187,12 +187,12 @@ void FileSourceSource::openFileStream(const QString& fileName)
if (crcOK)
{
qDebug("FileSourceSource::openFileStream: CRC32 OK for header: %s", qPrintable(crcHex));
m_recordLength = (fileSize - sizeof(FileRecord::Header)) / ((m_sampleSize == 24 ? 8 : 4) * m_fileSampleRate);
m_recordLengthMuSec = ((fileSize - sizeof(FileRecord::Header)) * 1000000UL) / ((m_sampleSize == 24 ? 8 : 4) * m_fileSampleRate);
}
else
{
qCritical("FileSourceSource::openFileStream: bad CRC32 for header: %s", qPrintable(crcHex));
m_recordLength = 0;
m_recordLengthMuSec = 0;
}
if (getMessageQueueToGUI())
@@ -203,12 +203,12 @@ void FileSourceSource::openFileStream(const QString& fileName)
}
else
{
m_recordLength = 0;
m_recordLengthMuSec = 0;
}
qDebug() << "FileSourceSource::openFileStream: " << m_fileName.toStdString().c_str()
<< " fileSize: " << fileSize << " bytes"
<< " length: " << m_recordLength << " seconds"
<< " length: " << m_recordLengthMuSec << " microseconds"
<< " sample rate: " << m_fileSampleRate << " S/s"
<< " center frequency: " << m_centerFrequency << " Hz"
<< " sample size: " << m_sampleSize << " bits"
@@ -220,11 +220,11 @@ void FileSourceSource::openFileStream(const QString& fileName)
m_sampleSize,
m_centerFrequency,
m_startingTimeStamp,
m_recordLength); // file stream data
m_recordLengthMuSec); // file stream data
getMessageQueueToGUI()->push(report);
}
if (m_recordLength == 0) {
if (m_recordLengthMuSec == 0) {
m_ifstream.close();
}
}
@@ -233,7 +233,8 @@ void FileSourceSource::seekFileStream(int seekMillis)
{
if ((m_ifstream.is_open()) && !m_running)
{
quint64 seekPoint = ((m_recordLength * seekMillis) / 1000) * m_fileSampleRate;
quint64 seekPoint = ((m_recordLengthMuSec * seekMillis) / 1000) * m_fileSampleRate;
seekPoint /= 1000000UL;
m_samplesCount = seekPoint;
seekPoint *= (m_sampleSize == 24 ? 8 : 4); // + sizeof(FileRecord::Header)
m_ifstream.clear();