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Re: Using the audio extraction API

1) There is a one-extraction-session-per-movie limitation, at present. Sorry It isn't better documented, but we're hoping to be able to lift the restriction at some point.

This limitation sucks big time for us.

3) If you want to start multiple extraction sessions on a single movie, your best bet is to clone the movie and disable any tracks you are not interested in. Alternatively, you can make a new movie with just the track(s) you want to extract from.

Daniel Steinberg
QuickTime Engineering

This will NOT work if the movie has the 'nsav' atom set to true. And all the movies I have to work with have that set to true, so this work around will NOT work for me anymore.

The ONLY solutions I can think of is to somehow create a global extraction buffer that all component instances can look at. No idea about thread safety issues. This would mean that all components wanting this data all must have the same extraction settings and must also all want to look at the same part of the audio that is in the buffer and all must be done before more audio is extracted - sounds like a big pain to get working. OR I can open and close the sessions for every 8k of buffer filled. Sounds like a performance nightmare.

So, who put this limit on ONE extractor again? Looks like the OLD conversion process has less limitations there....


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References: 
 >Using the audio extraction API (From: Steve Israelson <email@hidden>)
 >Re: Using the audio extraction API (From: Brad Ford <email@hidden>)
 >Re: Using the audio extraction API (From: Steve Israelson <email@hidden>)
 >Re: Using the audio extraction API (From: Brad Ford <email@hidden>)
 >Re: Using the audio extraction API (From: Steve Israelson <email@hidden>)
 >Re: Using the audio extraction API (From: Brad Ford <email@hidden>)
 >Re: Using the audio extraction API (From: Steve Israelson <email@hidden>)
 >Re: Using the audio extraction API (From: Brad Ford <email@hidden>)
 >Re: Using the audio extraction API (From: Steve Israelson <email@hidden>)
 >Re: Using the audio extraction API (From: Daniel Steinberg <email@hidden>)



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