apply effects to individual deck outputs

Do not modify input buffers for processing effects on headphones, but do
modify the buffers in place for the main processing. This also allows
for some optimization by avoiding unnecessary buffer copying.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/engine/enginemaster.h b/src/engine/enginemaster.h
index 360e665bd6..efbb25678d 100644
--- a/src/engine/enginemaster.h
+++ b/src/engine/enginemaster.h
@@ -289,6 +289,9 @@ class EngineMaster : public QObject, public AudioSource {
     QVarLengthArray<ChannelInfo*, kPreallocatedChannels> m_activeHeadphoneChannels;
     QVarLengthArray<ChannelInfo*, kPreallocatedChannels> m_activeTalkoverChannels;
 
+    unsigned int m_iSampleRate;
+    unsigned int m_iBufferSize;
+
     // Mixing buffers for each output.
     CSAMPLE* m_pOutputBusBuffers[3];
     CSAMPLE* m_pHead;
@@ -336,6 +339,7 @@ class EngineMaster : public QObject, public AudioSource {
     const ChannelHandleAndGroup m_busLeftHandle;
     const ChannelHandleAndGroup m_busCenterHandle;
     const ChannelHandleAndGroup m_busRightHandle;
+    const ChannelHandleAndGroup m_unmixedDeckOutputHandle;
 
     // Produce the Master Mixxx, not Required if connected to left
     // and right Bus and no recording and broadcast active