[PD] Reading a specific image from [pix_buffer] and saving it using [pix_write]

[Antonio Roberts]

Thanks for the help on this. I've attached the updated patch. After
choosing a directory to save the files all of the shots will be saved
as jpgs.

I noticed some weird behaviour when pressing the Record (big red)
button. The save message is trying to save from a buffer slot that
isn't yet filled. I thought it was a race condition, so added a [t b
b] but that didn't solve it. I don't know what the exact problem is,
but the workdaround that I used seems to work

Antonio

On 20 March 2012 12:06, IOhannes m zmoelnig <zmoelnig at iem.at> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 2012-03-20 12:21, Antonio Roberts wrote:
>> I've been attempting to build on the stop-motion animation patch that
>> guido built some time ago (attached). I want to output each new frame
>> to an image but there's one problem: [pix_write] reads what is
>> currently in the frame buffer, which could be one of the old pictures.
>> Is there any way to make it read from a specific point in the frame
>> buffer?
>
> a "framebuffer" in openGL- and Gem-land usually means a "canvas" where
> you draw to. [gemwindow] is a typical framebuffer, [gemframebuffer]
> (what's that name..?) as well.
>
> [pix_write] will indeed read from this framebuffer.
> you can specify where in the framebuffer it reads via the "offset" &
> "dimension" parameters.
>
>
> [pix_buffer], while being a "buffer" that holds "frames", is NOT a
> framebuffer in this parlance.
>
> you can use the [save foo.jpg 42( message to save a pix from the
> [pix_buffer] to the disk. the last argument ("42" in this case) denotes
> the slot to read the image from.
>
> fgasdr
> IOhannes
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.11 (GNU/Linux)
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
>
> iEYEARECAAYFAk9oct4ACgkQkX2Xpv6ydvSdSQCgpS3lASLj8qZ5Y2vI2xX2FFJU
> tYIAoKEx3CZRE++bKPOUakALFUxZIyb7
> =G992
> -----END PGP SIGNATURE-----
>



-- 
============================
antonio at hellocatfood.com
http://www.hellocatfood.com
============================
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Stop_motion.pd
Type: text/x-puredata
Size: 3194 bytes
Desc: not available
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20120321/e18c5dda/attachment.bin>