sending raw video of varying dimensions through shmsink

[Matt Feury]

That sounds like exactly what I was looking for.

>From that link, I did actually discover gdppay/gdpdepay which could be used
as well. More importantly however I discovered that
adding rawvideoparse directly after the shmsrc allows it to work without
doing any payloading, so i went that route.

Matt



On Mon, Feb 6, 2023 at 2:17 PM Josh Doe via gstreamer-devel <
gstreamer-devel at lists.freedesktop.org> wrote:

> On Mon, Feb 6, 2023 at 11:05 AM Matt Feury via gstreamer-devel <
> gstreamer-devel at lists.freedesktop.org> wrote:
>
>> [snip]
>> An alternative is not to use shmsink and try to do something like
>> ipcpipeline, but that feels like a much bigger change than I'd like to do
>> right now. So I'm wondering: is there any way to share raw video between
>> shmsink/shmsrc in such a way that it supports variable dimensions?
>>
>
> A while ago (actually almost a decade!) I added caps-passing to
> shmsink/shmsrc when I ported it to windows (
> https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/94). It
> didn't seem to garner interest so I never put in a merge request. We've
> since created another shared memory plugin for Linux and Windows with
> Python bindings, all with auto caps handling.
>
> I'm guessing you're on Linux, but note that the new win32ipc plugin
> supports automatic caps handling.
>
> Otherwise, I'm not sure what would work for you. If you are interested in
> the patch for caps-handling in shmsink/shmsrc, let me know.
> -Josh
>
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