The module I am writing should be an endpoint VOIP-interface for another
program. The module should answer a call and transport incoming audio into a
3rd party application. Furthermore the 3rd party application sends audio data
back to the caller. This is why I hooked channel_read_frame and
channel_write_frame.
How can I trigger the channel to do something that requires reading or writing
audio? Does it make a difference to use the endpoint interface instead of the
hooks?
Date: Tue, 16 Mar 2010 08:34:18 -0500
From: anthony.miness...@gmail.com
To: freeswitch-dev@lists.freeswitch.org
Subject: Re: [Freeswitch-dev] hooked functions are not called while using
one single session
What exactly is your goal?
those hooks will probably only be called if you send the channel to do
something that
requires reading and writing audio.
On Tue, Mar 16, 2010 at 6:47 AM, Francisco Scaramanga <sca...@hotmail.de> wrote:
Hello,
I am writing my own freeswitch module and have implemented 2 hooks for reading
and writing audio (I did not implement the endpoint interface).
My problem is that the channel_write_frame and channel_read_frame
callback-functions are only called if I make an intercept with another session
(switch_ivr_intercept_session), but my usecase has only one single Session for
getting and putting audio data in my module.
How can I achieve this?
scaram
/* on channel init I answer the session and set hooks */
static switch_status_t channel_on_init(switch_core_session_t *session)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_channel_answer(channel);
switch_channel_set_state(channel, CS_EXCHANGE_MEDIA);
switch_set_flag(tech_pvt, TFLAG_IO);
switch_core_event_hook_add_write_frame(session, &channel_write_frame);
switch_core_event_hook_add_read_frame(session, &channel_read_frame);
}
static switch_status_t channel_write_frame(switch_core_session_t *session,
switch_frame_t *frame, switch_io_flag_t flags, int stream_id)
{
/* is only called when I intercept 2 Sessions */
}
static switch_status_t channel_read_frame(switch_core_session_t *session,
switch_frame_t *frame, switch_io_flag_t flags, int stream_id)
{
/* is only called when I intercept 2 Sessions */
}
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