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authorRobin Gareus <robin@gareus.org>2013-08-01 00:35:24 +0200
committerRobin Gareus <robin@gareus.org>2013-08-01 00:35:24 +0200
commit4dc74ae2ea13d2e5a8b481961d507df1ff98df97 (patch)
tree78dec5b3fc587a50e111e554478eb07475831594 /libs/ardour/ardour/process_thread.h
parentf81cbe06ea3439d0c58057ae40ea63f1b6bf484b (diff)
use zeroed scratch buffers for "silent" plugin runs
Plugins rewrite the buffer data in-place and some plugins can produce output even when fed with silence. Hence, during a PluginInsert::silence() run a plugin can inject data into the "silent" buffers which causes side-effects. Kudos to Chris 'oofus' Goddard for finding this issue.
Diffstat (limited to 'libs/ardour/ardour/process_thread.h')
-rw-r--r--libs/ardour/ardour/process_thread.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libs/ardour/ardour/process_thread.h b/libs/ardour/ardour/process_thread.h
index 399cd506a3..f96595fbbf 100644
--- a/libs/ardour/ardour/process_thread.h
+++ b/libs/ardour/ardour/process_thread.h
@@ -45,7 +45,7 @@ public:
*/
static BufferSet& get_silent_buffers (ChanCount count = ChanCount::ZERO);
- static BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO);
+ static BufferSet& get_scratch_buffers (ChanCount count = ChanCount::ZERO, bool silence = false);
static BufferSet& get_route_buffers (ChanCount count = ChanCount::ZERO, bool silence = false);
static BufferSet& get_mix_buffers (ChanCount count = ChanCount::ZERO);
static gain_t* gain_automation_buffer ();