[Freeswitch-users] Recording with Native File PCMU

[Anthony Minessale]

If you want to go to that much trouble consider http://www.orecx.com/web/
They snoop the RTP from an entirely different box and record your calls for
you.



On Wed, Nov 25, 2009 at 7:35 PM, Seven Du <dujinfang at gmail.com> wrote:

> Yeah, that's why I had to record to two files(read&write) and need to mix
> together by using sox.  Do you only try to using PCMU to save CPU power
> matt? As Anthony said, the difference can be ignored. And you also need to
> take extra effort to make sure transcoding will not happen on a
> conversation.
>
> But it maybe useful for expensive codecs like g729, iLBC, speex etc for
> recording heavy scenarios. I'd like to take a look if there is a 5k bounty
> ;)
>
> 2009/11/26 Anthony Minessale <anthony.minessale at gmail.com>
>
> The processor power saved is negligible between PCMU and raw PCM and not
>> worth the fuss.
>> If you didn't decode the audio first you would not be able to mix the
>> stream to produce a single file.
>> So if we went to the trouble of making native media bugs to be able to do
>> that you could barely use them so it would not be worth the 5k or more
>> bounty to develop that functionality.
>>
>>
>>
>> On Sun, Nov 22, 2009 at 12:48 PM, Matthew Fong <mattdfong at gmail.com>wrote:
>>
>>> I'm trying to conserve processor power by recording in native file
>>> format, PCMU in my case. It works great with the following line
>>>
>>> session:execute("record",
>>> "/tmp/my_recording."..session:getVariable("read_codec"));
>>>
>>> however it fails to work with
>>>
>>> session:execute("record_session",
>>> "/tmp/my_recording."..session:getVariable("read_codec"));
>>> or
>>> record = api:execute("sched_api", '+1 none uuid_record
>>> '..session:getVariable("uuid")..' start
>>> /tmp/my_recording.'..session:getVariable("read_codec"));
>>>
>>> Why is it that it works with record, but not with record_session or
>>> uuid_record? Is there something I'm over looking? In the latter two the
>>> consul reports
>>>
>>> 2009-11-22 18:39:04.265284 [INFO] mod_native_file.c:82 Opening File
>>> [/tmp/my_recording.PCMU] 8000hz
>>>
>>> as if it's recording, but /tmp/my_recording.PCMU never shows up. However
>>> if I change it to .wav instead of .PCMU it works. Any ideas?
>>>
>>> --matt
>>>
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>>>
>>
>>
>> --
>> Anthony Minessale II
>>
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>
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-- 
Anthony Minessale II

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