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SDRdaemon plugin: handle data reads

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This commit is contained in:
f4exb
2016-01-29 08:17:34 +01:00
parent e9058a1c94
commit becf359db9
6 changed files with 36 additions and 65 deletions
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plugins/samplesource/sdrdaemon/sdrdaemonbuffer.cpp
+29
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@@ -40,6 +40,7 @@ SDRdaemonBuffer::SDRdaemonBuffer(uint32_t blockSize) :
m_readCount(0),
m_rawSize(0),
m_rawBuffer(0),
m_frameBuffer(0),
m_bytesInBlock(0),
m_nbBlocks(0)
{
@@ -59,6 +60,10 @@ SDRdaemonBuffer::~SDRdaemonBuffer()
if (m_lz4OutBuffer) {
delete[] m_lz4OutBuffer;
}
if (m_frameBuffer) {
delete[] m_frameBuffer;
}
}
bool SDRdaemonBuffer::readMeta(char *array, uint32_t length)
@@ -227,6 +232,24 @@ void SDRdaemonBuffer::writeToRawBufferLZ4(const char *array, uint32_t length)
writeToRawBufferUncompressed((const char *) m_lz4OutBuffer, m_frameSize);
}
uint8_t *SDRdaemonBuffer::readData(uint32_t length)
{
uint32_t readCount = m_readCount;
if (m_readCount + length < m_rawSize)
{
m_readCount += length;
return &m_rawBuffer[readCount];
}
else
{
std::memcpy((void *) m_frameBuffer, (const void *) &m_rawBuffer[readCount], m_rawSize - m_rawCount);
m_readCount = length - (m_rawSize - m_rawCount);
std::memcpy((void *) m_frameBuffer, (const void *) &m_frameBuffer[m_rawSize - m_rawCount], m_readCount);
return m_frameBuffer;
}
}
void SDRdaemonBuffer::updateLZ4Sizes(uint32_t frameSize)
{
uint32_t maxInputSize = LZ4_compressBound(frameSize);
@@ -259,6 +282,12 @@ void SDRdaemonBuffer::updateBufferSize(uint32_t frameSize)
m_rawSize = nbFrames * frameSize;
m_rawBuffer = new uint8_t[m_rawSize];
if (m_frameBuffer) {
delete[] m_frameBuffer;
}
m_frameBuffer = new uint8_t[frameSize];
}
void SDRdaemonBuffer::updateBlockCounts(uint32_t nbBytesReceived)