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Merge pull request #36 from Ahbee/feature-setChannel

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added StkFrames::setChannel
This commit is contained in:
garyscavone
2014-11-03 14:09:40 -05:00
parent 84d947c750 46be0d56c3
commit c1c314e7d6
2 changed files with 34 additions and 0 deletions
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8
include/Stk.h
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@@ -381,6 +381,14 @@ public:
*/
StkFrames& copyChannel(unsigned int channel,StkFrames& destinationFrames, unsigned int destinationChannel) const;
//! Sets a single channel
/*!
Copies the \c sourceChannel of \c sourceFrames into the \c channel of self.
SourceFrames.frames() must be equal to frames().
No range checking is performed unless _STK_DEBUG_ is defined.
*/
void setChannel(unsigned int channel,const StkFrames &sourceFrames,unsigned int sourceChannel);
//! Return the number of channels represented by the data.
unsigned int channels( void ) const { return nChannels_; };

26
src/Stk.cpp
View File

@@ -345,6 +345,32 @@ StkFrames& StkFrames::copyChannel(unsigned int sourceChannel,StkFrames& destinat
}
void StkFrames::setChannel(unsigned int destinationChannel, const stk::StkFrames &sourceFrames,unsigned int sourceChannel)
{
#if defined(_STK_DEBUG_)
if (sourceChannel > sourceFrames.channels() - 1) {
std::ostringstream error;
error << "StkFrames::setChannel invalid sourceChannel (" << sourceChannel << ")";
Stk::handleError( error.str(), StkError::FUNCTION_ARGUMENT);
}
if (destinationChannel > channels() - 1) {
std::ostringstream error;
error << "StkFrames::setChannel invalid channel (" << destinationChannel << ")";
Stk::handleError( error.str(), StkError::FUNCTION_ARGUMENT );
}
if (f.frames() != frames()) {
std::ostringstream error;
error << "StkFrames::setChannel f.frames() != frames();
Stk::handleError( error.str(), StkError::MEMORY_ACCESS);
}
#endif
unsigned int sourceHop = sourceFrames.nChannels_;
unsigned int destinationHop = nChannels_;
for (int i = destinationChannel,j = sourceChannel ; i < nFrames_ * nChannels_; i+=destinationHop,j+=sourceHop) {
data_[i] = sourceFrames[j];
}
}
StkFloat StkFrames :: interpolate( StkFloat frame, unsigned int channel ) const
{
#if defined(_STK_DEBUG_)