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<p class=MsoNormal>Hi,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I am getting stuck on read_frame and write_frame in my
custom endpoint. Would someone shed some lights on how it works?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>My questions about read_frame, write_frame after reading
mod_iax, mod_portaudio and mod_skyiax are:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>Is it correct that I need to check a flag (for e.g
TFLAG_HUP) of the private object at the beginning of the event to
determine whether I should continue reading audio or just return. The flag
TFLAG_HUP is set when a hangup or kill channel event is detected.<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>Read_frame is called on an interval (how frequently is
the interval ? how do I determine that?) to read audio from my endpoint.<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>What is TFLAG_IO normally used for ?<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>4.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>What is the label “cng” is all about ? May
I know what “cng” stands for and how it is used?<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>5.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>What if read_frame is called while my end point is not
ready to send any audio yet?<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>6.<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>What is the tech_pvt->cng_frame is used for? I
notice that the *frame is set to tech_pvt->cng_frame if the label “cng”
is reached.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thank you very much for even reading my questions. I tried
to look for documents that explains clearly the above questions but so far no
luck. Until now I still don’t have a clear understanding about these 2
events yet.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Best Regards<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Alex To<o:p></o:p></p>
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