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Merged revisions 149204 via svnmerge from

Browse Source 
https://origsvn.digium.com/svn/asterisk/branches/1.4

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r149204 | mmichelson | 2008-10-14 18:00:01 -0500 (Tue, 14 Oct 2008) | 12 lines

Add a tolerance period for sync-triggered audiohooks
so that if packetization of audio is close (but not equal)
we don't end up flushing the audiohooks over small
inconsistencies in synchronization.

Related to issue #13005, and solves the issue
for most people who were experiencing the problem.
However, a small number of people are still experiencing
the problem on long calls, so I am not closing
the issue yet


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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@149205 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Michelson
2008-10-14 23:04:44 +00:00
parent 184fe6f87b
commit 29a8fe20c8
2 changed files with 10 additions and 2 deletions
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10
main/audiohook.c
View File

@@ -123,12 +123,18 @@ int ast_audiohook_write_frame(struct ast_audiohook *audiohook, enum ast_audiohoo
struct ast_slinfactory *factory = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook->read_factory : &audiohook->write_factory);
struct ast_slinfactory *other_factory = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook->write_factory : &audiohook->read_factory);
struct timeval *rwtime = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook->read_time : &audiohook->write_time), previous_time = *rwtime;
int our_factory_ms;
int other_factory_samples;
int other_factory_ms;
/* Update last feeding time to be current */
*rwtime = ast_tvnow();
/* If we are using a sync trigger and this factory suddenly got audio fed in after a lapse, then flush both factories to ensure they remain in sync */
if (ast_test_flag(audiohook, AST_AUDIOHOOK_TRIGGER_SYNC) && ast_slinfactory_available(other_factory) && (ast_tvdiff_ms(*rwtime, previous_time) > (ast_slinfactory_available(other_factory) / 8))) {
our_factory_ms = ast_tvdiff_ms(*rwtime, previous_time) + (ast_slinfactory_available(factory) / 8);
other_factory_samples = ast_slinfactory_available(other_factory);
other_factory_ms = other_factory_samples / 8;
if (ast_test_flag(audiohook, AST_AUDIOHOOK_TRIGGER_SYNC) && other_factory_samples && (our_factory_ms - other_factory_ms > AST_AUDIOHOOK_SYNC_TOLERANCE)) {
if (option_debug)
ast_log(LOG_DEBUG, "Flushing audiohook %p so it remains in sync\n", audiohook);
ast_slinfactory_flush(factory);