Hum, it seems to work with slinear, ulaw, alaw and gsm, but not with
iLBC, it complains about ilbc frame not being multiple of 50, so i
tried to make it happy, but still misses some translations from
slinear to iLBC and the sound is choppy. What makes iLBC so special
any way?
I just did this to fix the app_conference issue:
/* create the smoother if were receiving more samples than needed */
if ( AST_CONF_BLOCK_SAMPLES < fr->samples ) {
if ( member->inSmoother == NULL ) {
/* calculate bytes per sample */
ast_log(LOG_DEBUG, "%s frame has %d samples in %d
bytes\n", member->channel_name, fr->samples, fr->datalen);
float bytes_per_sample = ( (float)fr->datalen /
(float)fr->samples );
ast_log(LOG_DEBUG, "%s frame has %f bytes per sample\n",
member->channel_name, bytes_per_sample);
float new_frame_len = ( AST_CONF_BLOCK_SAMPLES *
bytes_per_sample );
if ( fr->subclass == AST_FORMAT_ILBC ) {
ast_log(LOG_DEBUG, "ILBC format only accepts datalen
multiple of 50, so make it happy\n");
if ( new_frame_len < 50 ) {
new_frame_len = 50;
}
}
ast_log(LOG_DEBUG, "%s new frame size is %f\n",
member->channel_name, new_frame_len);
member->inSmoother = ast_smoother_new(new_frame_len);
That is, I have fixed the samples on any frame to
AST_CONF_BLOCK_SAMPLES, that is 160 samples ( calculated from slinear
at 20ms with 8000 samples per second ), this is needed because the
mix_slinear_frames function in app_conference requires that maximum
number of samples. Any ideas, again to make it work with iLBC or any
other frame size dependant codec?
Thanks.
On 11/6/06, Moises Silva <[EMAIL PROTECTED]> wrote:
On 11/6/06, Dan Austin <[EMAIL PROTECTED]> wrote:
> In the scenario that Moises described, it sounds
> like he might managed the server that the SPA is registered to. If
> he had the ability to force the framing between the two servers to
> 20ms, it would have helped. It would not help if an endpoint that
> uses a payload other than 20ms was register to the same server that
> hosts app_conference, so making app_conference more resilient is a
> valid goal.
Sure, I think it would be great to have that control over our
network. By the way, I have fixed app_conference, smoothers rules!,
do you know if iaxclient-dev maling list the correct place to post my
patch that fixes the framing issue?
I sent an email saturday without response, but may be with a patch
included some one will get interested.
Best Regards
--
"Su nombre es GNU/Linux, no solamente Linux, mas info en http://www.gnu.org";
--
"Su nombre es GNU/Linux, no solamente Linux, mas info en http://www.gnu.org";
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