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Re: Channels and frames

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Re: Channels and frames

Subject: Re: Channels and frames
From: "john smith" <email@hidden>
Date: Fri, 04 Nov 2005 17:21:44 +0100

Argh, just when I thought I understood this channel business, it appears I didn't understand anything at all.

Logics AU manager is giving me this text:

_____

 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
        AU Validation Tool
        Version: 1.1.1b11
        Copyright 2003-4, Apple Computer, Inc.

        Specify -h (-help) for command options
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

--------------------------------------------------
VALIDATING AUDIO UNIT: 'aufx' - 'EFFT' - 'KJAU'
--------------------------------------------------
Manufacturer String: Kjaerhus Audio
AudioUnit name: Classic Chorus
Component Info: AU AU
Component Version: 1.0.0 (0x10000)

* * PASS
--------------------------------------------------
TESTING OPEN TIMES:
COLD:
Time to open AudioUnit:           35.041ms
WARM:
Time to open AudioUnit:           0.424ms

* * PASS -------------------------------------------------- VERIFYING DEFAULT SCOPE FORMATS: Input Scope Bus Configuration: Default Bus Count:1 Default Format: AudioStreamBasicDescription: 2 ch, 44100 Hz, 'lpcm' (0x0000002B) 32-bit big-endian float, deinterleaved

Output Scope Bus Configuration: Default Bus Count:1 Default Format: AudioStreamBasicDescription: 2 ch, 44100 Hz, 'lpcm' (0x0000002B) 32-bit big-endian float, deinterleaved

ERROR: Default Format of unit does not match reported Channel handling capabilities * * FAIL -------------------------------------------------- VERIFYING REQUIRED PROPERTIES: VERIFYING PROPERTY: Sample Rate PASS VERIFYING PROPERTY: Stream Format PASS VERIFYING PROPERTY: Maximum Frames Per Slice PASS VERIFYING PROPERTY: Last Render Error PASS

* * PASS
--------------------------------------------------
VERIFYING RECOMMENDED PROPERTIES:
 VERIFYING PROPERTY: Latency
   PASS
 VERIFYING PROPERTY: Tail Time
WARNING: Recommended Property is not supported

 VERIFYING PROPERTY: Bypass Effect
   PASS

* * PASS
--------------------------------------------------
VERIFYING OPTIONAL PROPERTIES:
 VERIFYING PROPERTY Supported Number of Channels
   PASS
 VERIFYING PROPERTY Host Callbacks
   PASS

* * PASS
--------------------------------------------------
VERIFYING SPECIAL PROPERTIES:

VERIFYING CUSTOM UI
Carbon View Components Available: 1
 Component 'auvw' - 'EFFT' - 'KJAU'
   PASS

Cocoa Views Available: 0

VERIFYING CLASS INFO
   PASS

TESTING HOST CALLBACKS
   PASS

* * PASS
--------------------------------------------------
PUBLISHED PARAMETER INFO:

# # # 8 Global Scope Parameters:
WARNING: PARAMETER SHOULD PUBLISH NAME AS CFString
WARNING: PARAMETER SHOULD PUBLISH NAME AS CFString
WARNING: PARAMETER SHOULD PUBLISH NAME AS CFString
WARNING: PARAMETER SHOULD PUBLISH NAME AS CFString
WARNING: PARAMETER SHOULD PUBLISH NAME AS CFString
WARNING: PARAMETER SHOULD PUBLISH NAME AS CFString
WARNING: PARAMETER SHOULD PUBLISH NAME AS CFString
WARNING: PARAMETER SHOULD PUBLISH NAME AS CFString
ERROR: -10868 IN CALL AudioUnitInitialize

* * FAIL
--------------------------------------------------
FORMAT TESTS:

Input/Output Channel Handling: 1-1 1-2 1-4 1-5 2-2 2-4 2-5 4-4 4-5 5-5 5-2 6-6 8-8 X ERROR: Unit now reports it cannot support default channel configuration (it previously reported that it did): in:2, out:2 ERROR: -10868 IN CALL Cannot Initialize Unit to valid num channels:InputChan:2, OutputChan:2 ERROR: Unit incorrectly set to InputChans:3 OutputChans:1

* * FAIL
--------------------------------------------------
RENDER TESTS:
ERROR:   Format errors. Cannot perform render tests


* * FAIL
--------------------------------------------------
AU VALIDATION FAILED: CORRECT THE ERRORS ABOVE.
--------------------------------------------------

_____

How is this error possible? The only change I made was that I now override GetNumChannels, and return 1 configuration, which is 1,1.

From what I gathered on this list, that was all I needed to do. Gosh, now

I'm really confused.


Thanks,

Michael Olsen

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Re: Channels and frames
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