Changeset 1941 for pjproject/trunk/pjmedia/include/pjmedia/config.h

Timestamp:

Apr 23, 2008 4:07:37 PM (16 years ago)

Author:

bennylp

Message:

More ticket #497: added configuration to disable WSOLA and set default to disabled on WinCE and Symbian

File:

• pjproject/trunk/pjmedia/include/pjmedia/config.h (modified) (1 diff)

pjproject/trunk/pjmedia/include/pjmedia/config.h

@@ -104 +104 @@
 #ifndef PJMEDIA_SOUND_USE_DELAYBUF
 #   define PJMEDIA_SOUND_USE_DELAYBUF       0
+#endif
+
+
+/*
+ * Types of WSOLA backend algorithm.
+ */
+
+/**
+ * This denotes implementation of WSOLA using null algorithm. Expansion
+ * will generate zero frames, and compression will just discard some
+ * samples from the input.
+ *
+ * This type of implementation may be used as it requires the least
+ * processing power.
+ */
+#define PJMEDIA_WSOLA_IMP_NULL              0
+
+/**
+ * This denotes implementation of WSOLA using fixed or floating point WSOLA
+ * algorithm. This implementation provides the best quality of the result,
+ * at the expense of one frame delay and intensive processing power 
+ * requirement.
+ */
+#define PJMEDIA_WSOLA_IMP_WSOLA             1
+
+
+/**
+ * Specify type of Waveform based Similarity Overlap and Add (WSOLA) backend
+ * implementation to be used. WSOLA is an algorithm to expand and/or compress 
+ * audio frames without changing the pitch, and used by the delaybuf and as PLC
+ * backend algorithm.
+ *
+ * Default is PJMEDIA_WSOLA_IMP_WSOLA
+ */
+#ifndef PJMEDIA_WSOLA_IMP
+#   define PJMEDIA_WSOLA_IMP                PJMEDIA_WSOLA_IMP_WSOLA
 #endif