[ecasound] edi-21: item closed

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Subject: [ecasound] edi-21: item closed
From: Kai Vehmanen (kai.vehmanen_AT_wakkanet.fi)
Date: Fri Feb 01 2002 - 11:35:55 EET

This one didn't take long... :)

------------------------------------------------------------------------
Status: CLOSED

(edi-21) Review of object position functionality
        - submitted: kaiv, 31.01.2002
        - done: kaiv, 01.02.2002

------------------------------------------------------------------------
Details:

- goals
  - find out which objects contain audio position and length
    information [done!]
  - determine how different objects behave when position (or length)
    is set in different situations (chainsetup connected/disconnect,
    with/without engine running) [done!]
  - add concept of current position to controller objects (to
    make for example fade-ins work even if chainsetup position
    is changed during operation) [done!]
  - make sure all ECI commands work correctly in all
    situations described above [done!]
  - update documentation [done!]
- technical details
  - separate ECA_AUDIO_POSITION from ECA_AUDIO_FORMAT; make
    both of them inherit ECA_SAMPLERATE_AWARE [done!]
  - implement ECA_CHAINSETUP_POSITION using ECA_AUDIO_POSITION [done!]
- open issues
  - what's the role of ECA_AUDIO_TIME? [=> separate concrete class]
  - should new functionality (locations, alternative position
    representations) be added to ECA_AUDIO_POSITION? [=> maybe,
    now it involves much less work than before]
- changelog
  - added: edi-21 implemented; a much improved framework
           for handling audio position information is now
            in place; -kl, -kl2 and -klg are now position
           aware - changing chainsetup position also affects
           controller sources
  - removed: ia-mode - 'c-rewind', 'c-forward' and
             'c-setpos'
  - changed: looping with -tl always loops from the start;
             -y can't be used for offseting loop start
              offset -> use ewf-files instead

------------------------------------------------------------------------ 

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