[gst-devel] plugin working with realimentation

[Stefan Kost]

hi,
Antonio Marqués schrieb:
> Hello developers,
>
> I am interesting to design a plugin which has as inputs N-1 number of
> pads (some images from a filesrc for example) and another input which
> would be the result of the plugin's output, so I would like to implement
> a kind of realimentation in that plugin.
>   
honestly, I did not understood what you want to do. Also
"realimentation" seem to be a strange word (seems to be a medical term).
If you want to have a history of the last N buffers you need to
implement a ringbuffer that would keep a reference of them.

Stefan
> In that plugin I would like to have all the N input buffers in the
> process function. So I have thought in using the collect pad method for
> all the pads. The problem is that, for the first buffer I would have not
> the buffer of the pad N (because it would be the output of the buffer),
> so the pipeline would not be set on PLAYING state never. Does anyone
> know how to solve this problem? The main purpose of the plugin is, to
> make an initial computation for the first frame taking into account the
> N-1 images and for the other frames taking also into account the
> previous output, which would be the N pad.
>
> If anyone knows a plugin with similar function it would be great for me
> to look at its source code.
>
> Thanks in advance.
>
>