[PD] any block size for video processing?

[Alexandre Torres Porres]

> miller did :-) to change a 3D geometry control points.

hmm, where is that?

> it is very useful for audio.

sotty, don't het how it'd useful to have block~ with a different size than
a power of two.

cheers

2015-06-18 18:48 GMT-03:00 Cyrille Henry <ch at chnry.net>:

> hello,
>
> Le 18/06/2015 22:37, Alexandre Torres Porres a écrit :
>
>> I was just wondering if anyone had actually used block~ in a size
>> different than a power of two... and in what specific situation, for what
>> kind of processing.
>>
>> It's not clear how it is supposed to work for video processing.
>>
>
> using the right block size we could imagine having a pix_dump~ and
> pix_set~ (for Gem image)
>
>
>
>> anyway, it seems no one has ever done anything with it :)
>>
> miller did :-) to change a 3D geometry control points.
>
>
>> it seems useless for audio, as most objects will restrict themselves to a
>> power of two.
>>
> it is very useful for audio.
> you can generated a lot's of audio data in one click. this data can be
> stored in a table, or in a wav file on the disk.
> for exemple, enveloppe table (for granular synthesis, fft analysis, etc)
> can be generated in a loadbang.
>
> cheers
> c
>
>
>  bang~, for example, will bang at every 128 samples when block is at 100
>> in size.
>>
>> cheers
>>
>> 2015-06-18 6:10 GMT-03:00 Roman Haefeli <reduzent at gmail.com <mailto:
>> reduzent at gmail.com>>:
>>
>>     On Wed, 2015-06-17 at 22:18 -0300, Alexandre Torres Porres wrote:
>>      > hi, help file of block says you should use power of two sizes for
>>      > objects, but that you can use any other block size if there's no
>>      > inlet~/outlet~. This is said to be "intended for later use in video
>>      > processing" and I ask: how so?
>>
>>     I can't read Miller's mind, of course, but I could imagine that the
>> idea
>>     is to have arbitrary block sizes so that it is possible to match the
>>     block size to video frames or lines of a video frame or whatever. Then
>>     you could use Pd's DSP engine to process video data in real time.
>>
>>     Does that answer your question?
>>
>>     Roman
>>
>>
>>
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