[asterisk-security] [asterisk-dev] downsampling slinear16 to ulaw (or alaw or g729)

[Kevin P. Fleming]

On 08/30/2010 11:15 AM, Paul Albrecht wrote:

>> No, that's enough, and it appears to be correct. I don't see any obvious
>> reason why that would be failing. To debug it further, I'd change it to
>> output AST_FORMAT_SLINEAR, and see if you get 160 samples; if not,
>> you've found the step that is causing the problem, and if so, you've
>> still found it :-)
>>
> 
> I have already done that, but since I received that expected result, 160
> samples, I figured it was likely a transcoding bug, so I posted to the
> list. What else do you need? Is there a frame dump routine I can call
> after I get the frame translated?

Then I would do one more check; produce an AST_FORMAT_SLINEAR frame
directly and convert it to AST_FORMAT_ULAW, to see if something in the
translation core is causing this problem as the frame moves between formats.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
skype: kpfleming | jabber: kfleming at digium.com
Check us out at www.digium.com & www.asterisk.org

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