Changeset 3065 for pjproject/trunk/pjmedia/include/pjmedia/jbuf.h

Timestamp:

Jan 20, 2010 1:02:37 AM (14 years ago)

Author:

nanang

Message:

Ticket #969:

• implemented progressive discard algorithm, discard rate is calculated from ratio of effective size to effective burst level.
• updated jbuf to clarify prefetch and burst level distinction, previously they are stored in same var, i.e: prefetch, while the semantic is actually different.
• updated STABLE_HISTORY_LIMIT in jbuf, it is now 20 (was 100), to adjust burst level faster.
• added test case of periodic-spike-burst-case in jbtest.dat for testing the new algorithm.
• updated stream to limit the rate of jbuf empty/lost log messages, it will only log first empty/lost event, then log again once jbuf returning normal frame (also counter of previous empty/lost frames).
• minor updates on jbuf.c: variable names, logs, added burst to jbuf state.
• minor updates on jbuf_test.c: handle comment in test session header, seq jump is now 20 (was 5000).

File:

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

pjproject/trunk/pjmedia/include/pjmedia/jbuf.h

@@ -77 +77 @@
 
     /* Status */
+    unsigned    burst;              /**< Current burst level, in frames     */
     unsigned    prefetch;           /**< Current prefetch value, in frames  */
     unsigned    size;               /**< Current buffer size, in frames.    */