Building new source element

[Frederic Turmel]

Hi, I'm looking to create new source element (Audio/Video) for HDMI card (not supporting V4L). I'm looking for guidance regarding the boilerplate scripts. I'm targeting to start with last stable release 1.16.2

-Is there a boilerplate to create a new project meson friendly? I found gst-project-maker but that is autotools related. Also found this "https://github.com/ast/gst-make" but not sure if it is still valid

-Is gst-element-maker still the preferred method to start a new plugins from scratch?

I have to admit that I'm starting from scratch.

Thanks

FredT

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[Tim Müller]

On Wed, 2020-01-08 at 09:46 -0800, Frederic Turmel wrote:

Hi,

I suspect most people tend to just copy'n'paste an existing plugin that
works similarly, search/replace and then strip it down to the bare
GStreamer/GObject skeleton bits ;)

gst-template has been ported to Meson now fwiw, so could be used as
skeleton.

There's also this MR which updates gst-project-maker to meson:

 
https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/merge_requests/184

HDMI capture sources can be a bit tricky, depending on the API you're
using, at least if you want both audio and video (see e.g. the decklink
elements and how they're split into audio source and video source).

What API/Hardware are you targetting here?

This repo has capture elements for miscellaneous hardware, fwiw:

  https://github.com/joshdoe/gst-plugins-vision

Cheers
 Tim

--
Tim Müller, Centricular Ltd - http://www.centricular.com

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[Nicolas Dufresne-5]

Le mercredi 08 janvier 2020 à 09:46 -0800, Frederic Turmel a écrit :

Hi, I'm looking to create new source element (Audio/Video) for HDMI card (not supporting V4L). I'm looking for guidance regarding the boilerplate scripts. I'm targeting to start with last stable release 1.16.2

-Is there a boilerplate to create a new project meson friendly? I found gst-project-maker but that is autotools related. Also found this "https://github.com/ast/gst-make" but not sure if it is still valid

The maker is upstream, in gst-plugins-bad/tools/. Though it's not yet ported to meson. I see that Antonio started some work, which is in a WIP merge request:

https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/merge_requests/184

regards,

Nicolas

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[Frederic Turmel]

Thanks, the hardware is not available off the shelf. I did look at decklink and also AJA as a reference.

I will look at the link you provided, thanks for the tip. Maybe I'll go the copy and paste way.

Thanks.

On Wed, Jan 8, 2020, 11:31 AM Tim Müller <[hidden email]> wrote:

On Wed, 2020-01-08 at 09:46 -0800, Frederic Turmel wrote:

Hi,

I suspect most people tend to just copy'n'paste an existing plugin that
works similarly, search/replace and then strip it down to the bare
GStreamer/GObject skeleton bits ;)

gst-template has been ported to Meson now fwiw, so could be used as
skeleton.

There's also this MR which updates gst-project-maker to meson:


https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/merge_requests/184

HDMI capture sources can be a bit tricky, depending on the API you're
using, at least if you want both audio and video (see e.g. the decklink
elements and how they're split into audio source and video source).

What API/Hardware are you targetting here?

This repo has capture elements for miscellaneous hardware, fwiw:

  https://github.com/joshdoe/gst-plugins-vision

Cheers
 Tim

--
Tim Müller, Centricular Ltd - http://www.centricular.com

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[Frederic Turmel]

Thanks will check it out.

FredT

On Wed, Jan 8, 2020, 11:56 AM Nicolas Dufresne <[hidden email]> wrote:

Le mercredi 08 janvier 2020 à 09:46 -0800, Frederic Turmel a écrit :

Hi, I'm looking to create new source element (Audio/Video) for HDMI card (not supporting V4L). I'm looking for guidance regarding the boilerplate scripts. I'm targeting to start with last stable release 1.16.2

-Is there a boilerplate to create a new project meson friendly? I found gst-project-maker but that is autotools related. Also found this "https://github.com/ast/gst-make" but not sure if it is still valid

The maker is upstream, in gst-plugins-bad/tools/. Though it's not yet ported to meson. I see that Antonio started some work, which is in a WIP merge request:

https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/merge_requests/184

regards,

Nicolas

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