resampling with jack.

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Subject: resampling with jack.
From: andy (news4_AT_earthsong.free-online.co.uk)
Date: Sat Oct 02 2004 - 20:44:58 EEST

Is there a known problem with using resampling when recording from a jack
port?

I've been trying the following command:

 ecasound -f:16,2,44100 -i:resample,auto,jack -o:session.ogg

and it fails after a couple of seconds with the following messages:

****************************************************************************
* ecasound v2.3.1 (C) 1997-2003 Kai Vehmanen
****************************************************************************
- [ Session created ]
------------------------------------------------------ - [ Chainsetup
created (cmdline) ] ----------------------------------------- - [
Connecting chainsetup ] ------------------------------------------------
(eca-chainsetup) 'nonrt' buffering mode selected. Warning: DBC_CHECK
failed - "channels() > 0", audioio.cpp, 193. Warning: DBC_CHECK failed -
"ECA_AUDIO_FORMAT::samples_per_second() ==
ECA_AUDIO_POSITION::samples_per_second()", audioio.cpp, 307. Warning:
DBC_CHECK failed - "samples_per_second() > 0", audioio.cpp, 195. Warning:
DBC_CHECK failed - "ECA_AUDIO_FORMAT::samples_per_second() ==
ECA_AUDIO_POSITION::samples_per_second()", audioio.cpp, 307. Warning:
DBC_CHECK failed - "samples_per_second() > 0", audioio.cpp, 195.
(eca-chainsetup) Audio object "jack", mode "read". (audio-io) Format:
f32_le, channels 2, srate 44100, noninterleaved. (eca-chainsetup) Audio
object "session.ogg", mode "write". (audio-io) Format: s16_le, channels 2,
srate 44100, interleaved. - [ Chainsetup connected ]
------------------------------------------------- (eca-controller)
Connected chainsetup: "command-line-setup". - [ Controller/Starting batch
processing ] --------------------------------- - [ Engine init - Driver
start ] ------------------------------------------- (audioio-ogg) Starting
to encode session.ogg with vorbize. - [ Controller/Batch processing
finished ] --------------------------------- - [ Engine exiting ]
------------------------------------------------------- (eca-controller)
Disconnecting chainsetup: "command-line-setup". - [ Chainsetup
disconnected ] ----------------------------------------------

This may not be too much of a problem, as we can just run jackd at 44100
Hz, but it does seem to be a bug. 

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