Don't bother decoding video frames when we're seeking around trying to find subtitles.

[dcpomatic.git] / src / lib / decoder.h

diff --git a/src/lib/decoder.h b/src/lib/decoder.h
index c1b8598650357b6a9978efdbcc28eb495ba69511..0703a542686933e3065f3b3cd5a343498ef0cebd 100644 (file)
--- a/src/lib/decoder.h
+++ b/src/lib/decoder.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2012-2013 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -41,6 +41,7 @@ public:
        virtual ~Decoder () {}
 
 protected:     
+
        /** Seek so that the next pass() will yield the next thing
         *  (video/sound frame, subtitle etc.) at or after the requested
         *  time.  Pass accurate = true to try harder to ensure that, at worst,
@@ -50,7 +51,14 @@ protected:
         *  it may seek to just the right spot.
         */
        virtual void seek (ContentTime time, bool accurate) = 0;
-       virtual bool pass () = 0;
+
+       enum PassReason {
+               PASS_REASON_VIDEO,
+               PASS_REASON_AUDIO,
+               PASS_REASON_SUBTITLE
+       };
+       
+       virtual bool pass (PassReason reason) = 0;
 };
 
 #endif