Hi Satei,
i had similar problems, i'm not sure but i think there is a bug in jbuf which prevents
from beeing used as fixed buffer.
Try the change below and initalise the buffer with:
status = pjmedia_jbuf_set_fixed(&jb, size);
status = pjmedia_jbuf_set_discard(&jb,PJMEDIA_JB_DISCARD_NONE);
or similar.
change pjmedia/jbuf.c:
@@ -97,7 +97,7 @@
unsigned jb_frame_ptime; /**< frame duration. */
pj_size_t jb_max_count; /**< capacity of jitter buffer,
in frames */
- int jb_init_prefetch; /**< Initial prefetch */
+ int jb_init_prefetch; /**< Initial prefetch, set to 0 for a fixed jbuf! */
int jb_min_prefetch; /**< Minimum allowable prefetch */
int jb_max_prefetch; /**< Maximum allowable prefetch */
int jb_max_burst; /**< maximum possible burst, whenever
@@ -786,8 +786,11 @@
PJ_ASSERT_RETURN(prefetch <= jb->jb_max_count, PJ_EINVAL);
jb->jb_min_prefetch = jb->jb_max_prefetch =
- jb->jb_prefetch = jb->jb_init_prefetch = prefetch;
-
+ jb->jb_prefetch = prefetch;
+ /* Do not initalize the jb_init_prefetch if jbuf should operate in fixed size mode.
+ * If this is 0, it will prevent dynamic change to 'jb_prefetch'.
+ */
+ jb->jb_init_prefetch=0;
return PJ_SUCCESS;
}
hope it helps, regards Markus
Von: pjsip [mailto:pjsip-bounces at lists.pjsip.org] Im Auftrag von Satej Dhotkar
Gesendet: Mittwoch, 30. Januar 2013 11:52
An: pjsip at lists.pjsip.org
Betreff: [pjsip] Fwd: How to set fixed jitter buffer ( pjmedia_jbuf_set_fixed )
hello all,
I want set fixed jitter buffer instead of adaptive so,
i have done one change in /pjmedia/src/pjmedia/stream.c
// pjmedia_jbuf_set_adaptive( stream->jb, jb_init, jb_min_pre, jb_max_pre);
pjmedia_jbuf_s../src/pjmedia/jbuf.c:501: pjmedia_jbuf_set_fixed: Assertion `prefetch <= jb->jb_max_count' failed.
Abortedet_fixed( stream->jb, 5000 );
but I am getting assertion as following:
../src/pjmedia/jbuf.c:501: pjmedia_jbuf_set_fixed: Assertion `prefetch <= jb->jb_max_count' failed.
Aborted
can anyone tell me how to set fixed jitter buffer???
seeking urgent help......
thanx and regards
Satej
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