Inrease the export "chunk size" to speed it up over 10% at least in some situations

git-svn-id: svn://localhost/ardour2/branches/3.0@12919 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 4 insertions, 1 deletions

diff --git a/libs/ardour/ardour/export_graph_builder.h b/libs/ardour/ardour/export_graph_builder.h
index f565fd4134..07e866475a 100644
--- a/libs/ardour/ardour/export_graph_builder.h
+++ b/libs/ardour/ardour/export_graph_builder.h
@@ -32,6 +32,7 @@ namespace AudioGrapher {
 	class SampleRateConverter;
 	class PeakReader;
 	class Normalizer;
+	template <typename T> class Chunker;
 	template <typename T> class SampleFormatConverter;
 	template <typename T> class Interleaver;
 	template <typename T> class SndfileWriter;
@@ -209,12 +210,14 @@ class ExportGraphBuilder
 
 	  private:
 		typedef boost::shared_ptr<AudioGrapher::Interleaver<Sample> > InterleaverPtr;
+		typedef boost::shared_ptr<AudioGrapher::Chunker<Sample> > ChunkerPtr;
 
 		ExportGraphBuilder &      parent;
 		FileSpec                  config;
 		boost::ptr_list<SilenceHandler> children;
 		InterleaverPtr            interleaver;
-		framecnt_t                max_frames;
+		ChunkerPtr                chunker;
+		framecnt_t                max_frames_out;
 	};
 
 	Session const & session;