Changeset 3202 for pjproject/trunk/pjmedia/include/pjmedia-codec/g722.h

Timestamp:

Jun 11, 2010 1:38:42 PM (14 years ago)

Author:

nanang

Message:

Close #1072:

• Added API pjmedia_codec_g722_set_pcm_shift() to enable configurable level-adjusment setting.
• Also added macro PJMEDIA_G722_DEFAULT_PCM_SHIFT (default value is 2) to accomplish 14-16 bit PCM conversion for G722 input/output.
• Added a feature in G722 to stop level-adjusment/PCM-shifting when clipping occured, compile-time configurable via PJMEDIA_G722_STOP_PCM_SHIFT_ON_CLIPPING macro.

File:

• pjproject/trunk/pjmedia/include/pjmedia-codec/g722.h (modified) (1 diff)

pjproject/trunk/pjmedia/include/pjmedia-codec/g722.h

@@ -79 +79 @@
 
 
+/**
+ * Set the G.722 codec encoder and decoder level adjustment.
+ * If the value is non-zero, then PCM input samples to the encoder will 
+ * be shifted right by this value, and similarly PCM output samples from
+ * the decoder will be shifted left by this value.
+ *
+ * Default value is PJMEDIA_G722_DEFAULT_PCM_SHIFT.
+ *
+ * @param val           The value
+ *
+ * @return              PJ_SUCCESS on success.
+ */
+PJ_DECL(pj_status_t) pjmedia_codec_g722_set_pcm_shift(unsigned val);
+
+
 PJ_END_DECL