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authorrussell <russell@f38db490-d61c-443f-a65b-d21fe96a405b>2007-01-24 00:57:28 +0000
committerrussell <russell@f38db490-d61c-443f-a65b-d21fe96a405b>2007-01-24 00:57:28 +0000
commita2faf5f00474a4b872dfd0aad395d619f20b0ddb (patch)
treef5d7a1f1b1a171831c7932d02dfbaa41f314dc2d
parent3fa016ea0d107989814beb996b557c53e6d5772f (diff)
Fix an issue related to synchronization of recordings when using Monitor().
The bug is a miscalculation of the amount to seek the stream for writing to disk when the number of samples coming in and out of a channel do not match up. (issue #8298, #8887, report and patch by guillecabeza, patch files created and testing done by whoiswes) git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.2@51843 f38db490-d61c-443f-a65b-d21fe96a405b
-rw-r--r--channel.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/channel.c b/channel.c
index 4779bf8d9..2a22bed3c 100644
--- a/channel.c
+++ b/channel.c
@@ -1958,9 +1958,10 @@ struct ast_frame *ast_read(struct ast_channel *chan)
#ifndef MONITOR_CONSTANT_DELAY
int jump = chan->outsmpl - chan->insmpl - 4 * f->samples;
if (jump >= 0) {
- if (ast_seekstream(chan->monitor->read_stream, jump + f->samples, SEEK_FORCECUR) == -1)
+ jump = chan->outsmpl - chan->insmpl;
+ if (ast_seekstream(chan->monitor->read_stream, jump, SEEK_FORCECUR) == -1)
ast_log(LOG_WARNING, "Failed to perform seek in monitoring read stream, synchronization between the files may be broken\n");
- chan->insmpl += jump + 4 * f->samples;
+ chan->insmpl += jump + f->samples;
} else
chan->insmpl+= f->samples;
#else
@@ -2313,9 +2314,10 @@ int ast_write(struct ast_channel *chan, struct ast_frame *fr)
#ifndef MONITOR_CONSTANT_DELAY
int jump = chan->insmpl - chan->outsmpl - 4 * f->samples;
if (jump >= 0) {
- if (ast_seekstream(chan->monitor->write_stream, jump + f->samples, SEEK_FORCECUR) == -1)
+ jump = chan->insmpl - chan->outsmpl;
+ if (ast_seekstream(chan->monitor->write_stream, jump, SEEK_FORCECUR) == -1)
ast_log(LOG_WARNING, "Failed to perform seek in monitoring write stream, synchronization between the files may be broken\n");
- chan->outsmpl += jump + 4 * f->samples;
+ chan->outsmpl += jump + f->samples;
} else
chan->outsmpl += f->samples;
#else