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Merged revisions 51311 via svnmerge from

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

........
r51311 | russell | 2007-01-19 11:49:38 -0600 (Fri, 19 Jan 2007) | 23 lines

Merge the changes from the /team/group/vldtmf_fixup branch.

The main bug being addressed here is a problem introduced when two SIP
channels using SIP INFO dtmf have their media directly bridged.  So, when a
DTMF END frame comes into Asterisk from an incoming INFO message, Asterisk
would try to emulate a digit of some length by first sending a DTMF BEGIN
frame and sending a DTMF END later timed off of incoming audio.  However,
since there was no audio coming in, the DTMF_END was never generated.  This
caused DTMF based features to no longer work.

To fix this, the core now knows when a channel doesn't care about DTMF BEGIN
frames (such as a SIP channel sending INFO dtmf).  If this is the case, then
Asterisk will not emulate a digit of some length, and will instead just pass
through the single DTMF END event.

Channel drivers also now get passed the length of the digit to their digit_end
callback.  This improves SIP INFO support even further by enabling us to put
the real digit duration in the INFO message instead of a hard coded 250ms.
Also, for an incoming INFO message, the duration is read from the frame and
passed into the core instead of just getting ignored.

(issue #8597, maybe others...)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@51314 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Russell Bryant
2007-01-19 18:06:03 +00:00
parent 9d509eaf76
commit dcca8f345f
19 changed files with 223 additions and 128 deletions
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5
channels/chan_local.c
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@@ -68,7 +68,7 @@ static const char tdesc[] = "Local Proxy Channel Driver";
static struct ast_channel *local_request(const char *type, int format, void *data, int *cause);
static int local_digit_begin(struct ast_channel *ast, char digit);
static int local_digit_end(struct ast_channel *ast, char digit);
static int local_digit_end(struct ast_channel *ast, char digit, unsigned int duration);
static int local_call(struct ast_channel *ast, char *dest, int timeout);
static int local_hangup(struct ast_channel *ast);
static int local_answer(struct ast_channel *ast);
@@ -368,7 +368,7 @@ static int local_digit_begin(struct ast_channel *ast, char digit)
return res;
}
static int local_digit_end(struct ast_channel *ast, char digit)
static int local_digit_end(struct ast_channel *ast, char digit, unsigned int duration)
{
struct local_pvt *p = ast->tech_pvt;
int res = -1;
@@ -381,6 +381,7 @@ static int local_digit_end(struct ast_channel *ast, char digit)
ast_mutex_lock(&p->lock);
isoutbound = IS_OUTBOUND(ast, p);
f.subclass = digit;
f.len = duration;
res = local_queue_frame(p, isoutbound, &f, ast);
ast_mutex_unlock(&p->lock);