[Asterisk-Dev] A problem of MixMonitor

[BJ Weschke]

 Please post this to the bug tracker at
bugs.digium.com<http://bugs.digium.com>for further consideration.

On 11/2/05, Chih-Wei Huang <cwhuang at citron.com.tw> wrote:
>
> I'm so SORRY that I forgot to change the subject of my previous email.
>
> Chih-Wei Huang wrote:
> > I'm trying the new application MixMonitor in 1.2-beta2.
> > Unfortunately, it didn't work as I expected.
> >
> > My dialplan is like this:
> >
> > [macro-checkrec]
> > ;
> > ; ${ARG1} - Caller
> > ; ${ARG2} - Callee
> > ;
> > exten => s,1,Set(RECFILE=${ARG1}-${ARG2}_${UNIQUEID})
> > exten => s,2,MixMonitor(${RECFILE},b)
> >
> >
> > The console shown the following error messages:
> >
> > Nov 2 16:26:36 WARNING[22223]: file.c:978 ast_writefile: No such format
> > '1'
> > Nov 2 16:26:36 ERROR[22223]: app_mixmonitor.c:163 mixmonitor_thread:
> > Cannot open /var/spool/asterisk/monitor/900-995_1130919996.1
> >
> >
> > I traced app_mixmonitor.c and found the reason.
> > In mixmonitor_thread,
> >
> > if ((ext = strchr(mixmonitor->filename, '.'))) {
> > *(ext++) = '\0';
> >
> > that is, it consider the string after . of filename
> > to be an ext. In my above case, it is "1", which won't work surely.
> > However, it's not my intention to use "xxxx.1" as the filename.
> > It comes from ${UNIQUEID}, which is generated from Asterisk.
> > Sadly...
> >
> > My suggestion:
> >
> > * Find the last occurrence of '.' in filename instead of the first one.
> > That is, simply replace strchr by strrchr.
> > Then I can workaround by MixMonitor(${RECFILE}.wav,b)
> > This is the simplest solution, but it doesn't work if people
> > use a filename containing '.' without specifying an ext explicitly
> > (like my original dialplan)
> >
> > * (Better solution) Let people specify the ext by another argument,
> > instead of part of the first argument(filename).
> > That is, change the syntax to
> >
> > MixMonitor(<file>[|<ext>[|<options>[|<command>]]])
> >
> > Since MixMonitor is a very new application, it won't affect too many
> > people. I hope.
> >
> >
> > BTW, I'm curious why ${UNIQUEID} contains a dot.
> > It usually causes troubles. Doesn't it?
> > How about change it to _ (underline)?
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