Re: AUGraph and output callback
Re: AUGraph and output callback
- Subject: Re: AUGraph and output callback
- From: Daniel Tapie <email@hidden>
- Date: Tue, 03 Jan 2012 15:07:56 +0100
Thanks Paul,
This seems to go in the same direction as Heinrich's recommendation, so I'll take a look right now !
Thanks and best regards,
Daniel Tapie
On 3 Jan 2012, at 13:06, Paul Davis wrote:
> On 1/3/12, Daniel Tapie <email@hidden> wrote:
>> Hi Everyone,
>>
>> I am new to CoreAudio but I am almost done building an AUGraph that reads
>> audio files, mixes them, adds filters and outputs to any HAL device.
>> However, I would like to save the samples that are played out to a file
>> using our own code (I know about Audio Hijack Pro, but I don't want our
>> users to have to buy extra software).
>>
>> So is there a way to insert a callback at the output of the graph in order
>> to get access to the samples ? There would be no synchronization issue since
>> we will merely save them to a file.
>>
>> I have also considered writing our own audio unit and a splitter, but that
>> seems like an overkill.
>
> that's actually much simpler than any other solution.
>
> if cost is the issue, you could use JACK, but the architecture of your
> "system" would then be more complex.
>
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