Add basic memory-used stuff for butler and reduce minimum audio

readahead quite a bit.  This in turn reduces the maximum butler memory
usage as it will keep getting audio (and hence video) until the
minimum audio readahead is hit.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/lib/image_proxy.h b/src/lib/image_proxy.h
index f9a06d1b7..01cb79552 100644
--- a/src/lib/image_proxy.h
+++ b/src/lib/image_proxy.h
@@ -79,6 +79,7 @@ public:
 	 */
 	virtual void prepare (boost::optional<dcp::Size> = boost::optional<dcp::Size>()) const {}
 	virtual AVPixelFormat pixel_format () const = 0;
+	virtual size_t memory_used () const = 0;
 };
 
 boost::shared_ptr<ImageProxy> image_proxy_factory (boost::shared_ptr<cxml::Node> xml, boost::shared_ptr<Socket> socket);