From f905623d103bd3b4287630a5ead62fe48407e42a Mon Sep 17 00:00:00 2001
From: Abhi <abhilash@abhi-mbp.home>
Date: Tue, 16 Sep 2014 17:53:18 -0400
Subject: [PATCH 1/3] added StkFrames::copyChannel

---
 include/Stk.h |  8 ++++++++
 src/Stk.cpp   | 28 ++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/include/Stk.h b/include/Stk.h
index 7a050d4..dfe5b40 100644
--- a/include/Stk.h
+++ b/include/Stk.h
@@ -373,6 +373,14 @@ public:
   */
   void resize( size_t nFrames, unsigned int nChannels, StkFloat value );
 
+  //! Copies a single channel
+  /*!
+    Copies the \c sourceChannel into \c destination's \c destinationChannel. \c destinationChannel must be between 0 and destination.channels() - 1 and
+    sourceChannel must be between 0 and channels() - 1. destination.frames() must be >= frames().
+    No range checking is performed unless _STK_DEBUG_ is defined.
+  */
+  StkFrames& copyChannel(unsigned int sourceChannel,StkFrames& destinationFrames, unsigned int destinationChannel) const;
+
   //! Return the number of channels represented by the data.
   unsigned int channels( void ) const { return nChannels_; };
 
diff --git a/src/Stk.cpp b/src/Stk.cpp
index 02079b3..7a2cf57 100644
--- a/src/Stk.cpp
+++ b/src/Stk.cpp
@@ -316,6 +316,34 @@ void StkFrames :: resize( size_t nFrames, unsigned int nChannels, StkFloat value
 
   for ( size_t i=0; i<size_; i++ ) data_[i] = value;
 }
+    
+StkFrames& StkFrames::copyChannel(unsigned int sourceChannel,StkFrames& destinationFrames, unsigned int destinationChannel) const
+{
+#if defined(_STK_DEBUG_)
+  if (sourceChannel > channels() - 1) {
+    std::ostringstream error;
+    error << "StkFrames::copyChannel invalid sourceChannel (" << sourceChannel << ")";
+    Stk::handleError( error.str(), StkError::FUNCTION_ARGUMENT);
+  }
+  if (destinationChannel > destinationFrames.channels() - 1) {
+    std::ostringstream error;
+    error << "StkFrames::copyChannel invalid destinationChannel (" << destinationChannel << ")";
+    Stk::handleError( error.str(), StkError::FUNCTION_ARGUMENT );
+  }
+  if (destinationFrames.frames() < frames()) {
+    std::ostringstream error;
+    error << "StkFrames::copyChannel destination.frames() < frames()";
+    Stk::handleError( error.str(), StkError::MEMORY_ACCESS);
+  }
+#endif
+  int sourceHop = nChannels_;
+  int destinationHop = destinationFrames.nChannels_;
+  for (int i  = sourceChannel, j= destinationChannel; i < nFrames_ * nChannels_; i+=sourceHop,j+=destinationHop) {
+    destinationFrames[j] = data_[i];
+  }
+  return destinationFrames;
+        
+}
 
 StkFloat StkFrames :: interpolate( StkFloat frame, unsigned int channel ) const
 {

From a2fb59f4760be991bde7187a1636a3821d69b29b Mon Sep 17 00:00:00 2001
From: Abhi <abhilash@abhi-mbp.home>
Date: Tue, 16 Sep 2014 17:57:30 -0400
Subject: [PATCH 2/3] Fixed spelling

---
 include/Stk.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/Stk.h b/include/Stk.h
index dfe5b40..d0d15d5 100644
--- a/include/Stk.h
+++ b/include/Stk.h
@@ -375,7 +375,7 @@ public:
 
   //! Copies a single channel
   /*!
-    Copies the \c sourceChannel into \c destination's \c destinationChannel. \c destinationChannel must be between 0 and destination.channels() - 1 and
+    Copies the \c sourceChannel into \c destinationFrames's \c destinationChannel. \c destinationChannel must be between 0 and destination.channels() - 1 and
     sourceChannel must be between 0 and channels() - 1. destination.frames() must be >= frames().
     No range checking is performed unless _STK_DEBUG_ is defined.
   */

From 6094f403991998d586730b5cc0aad90b7bad1a16 Mon Sep 17 00:00:00 2001
From: Abhi <abhilash@abhi-mbp.home>
Date: Tue, 16 Sep 2014 19:24:29 -0400
Subject: [PATCH 3/3] renamed argument sourceChannel to channel

---
 include/Stk.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/Stk.h b/include/Stk.h
index d0d15d5..9e753b0 100644
--- a/include/Stk.h
+++ b/include/Stk.h
@@ -375,11 +375,11 @@ public:
 
   //! Copies a single channel
   /*!
-    Copies the \c sourceChannel into \c destinationFrames's \c destinationChannel. \c destinationChannel must be between 0 and destination.channels() - 1 and
-    sourceChannel must be between 0 and channels() - 1. destination.frames() must be >= frames().
+    Copies the specified \c channel into \c destinationFrames's \c destinationChannel. \c destinationChannel must be between 0 and destination.channels() - 1 and
+    \c channel must be between 0 and channels() - 1. destination.frames() must be >= frames().
     No range checking is performed unless _STK_DEBUG_ is defined.
   */
-  StkFrames& copyChannel(unsigned int sourceChannel,StkFrames& destinationFrames, unsigned int destinationChannel) const;
+  StkFrames& copyChannel(unsigned int channel,StkFrames& destinationFrames, unsigned int destinationChannel) const;
 
   //! Return the number of channels represented by the data.
   unsigned int channels( void ) const { return nChannels_; };