Re:gstreamer-devel Digest, Vol 122, Issue 29

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Re:gstreamer-devel Digest, Vol 122, Issue 29

strong
Re: about how to use audiofx to realize aduio EQ/bass/treble
hi, Sebastian
    Thanks very much, about EQ, you have given me what I wanted.
    And, do you know which plugin can realize audio effect like bass and treble, I can use sox to realize it, and but 
    I do not know how to realize it with gstreamer.

Thanks very much

------------------ Original ------------------
From: "gstreamer-devel" <[hidden email]>;
Date: Mon, Mar 15, 2021 08:00 PM
To: "gstreamer-devel"<[hidden email]>;
Subject: gstreamer-devel Digest, Vol 122, Issue 29

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Today's Topics:

   1. Re: Question Regarding GStreamer Pipeline Graph (Hassan Muhammad)
   2. Re: about how to use audiofx to realize aduio EQ/bass/treble
      (Sebastian Dr?ge)


----------------------------------------------------------------------

Message: 1
Date: Mon, 15 Mar 2021 15:04:18 +0500
From: Hassan Muhammad <[hidden email]>
To: Discussion of the development of and with GStreamer
<[hidden email]>
Subject: Re: Question Regarding GStreamer Pipeline Graph
Message-ID:
<CAHzzo3JajUZVtxCSkvVtYWyNWWW0qcDnSGX3kTr-=[hidden email]>
Content-Type: text/plain; charset="utf-8"

Thank you for your prompt response. I was able to use the
gst::debug_bin_to_dot_data()
function as per your suggestion to get a string and write a .dot file which
I then converted to a graph.

On Fri, Mar 12, 2021 at 5:45 PM Sebastian Dr?ge <[hidden email]>
wrote:

> On Fri, 2021-03-12 at 17:05 +0500, Hassan Muhammad wrote:
>
> Hi there,
>
> I have a question regarding generating .dot file for my gstreamer
> pipeline. I am trying to build an application in gst-rust bindings with
> webrtc and would like to visualize my dynamic pipeline. I've set the
> appropriate environment variable however, the .dot files are only generated
> when using the "gst-launch" command from the terminal. I also looked into
> the documentation for:
>
> "gstreamer::functions::debug_bin_to_dot_file"
>
> and called the function with the following parameters:
>
> gst::debug_bin_to_dot_file(&pipeline, gst::DebugGraphDetails::ALL,
> "C:/tmp/out.dot")
>
> but after launching the application, no files are generated.
>
>
> Please check the C documentation here:
> https://gstreamer.freedesktop.org/documentation/gstreamer/gstdebugutils.html?gi-language=c#GST_DEBUG_BIN_TO_DOT_FILE
>
> In short, you need to set an environment variable for defining the
> directory where the .dot files should be dumped and then the filename you
> provide to the function call is really just a filename (prefix).
>
> You can use gst::debug_bin_to_dot_data() to get a string and handle the
> writing yourself if you need more control. That function is also not
> affected by the environment variable.
>
> --
>
> Sebastian Dr?ge, Centricular Ltd ? https://www.centricular.com
> <http://www.centricular.com>
>
> _______________________________________________
> gstreamer-devel mailing list
> [hidden email]
> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
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------------------------------

Message: 2
Date: Mon, 15 Mar 2021 12:33:15 +0200
From: Sebastian Dr?ge <[hidden email]>
To: Discussion of the development of and with GStreamer
<[hidden email]>
Subject: Re: about how to use audiofx to realize aduio EQ/bass/treble
Message-ID:
<[hidden email]>
Content-Type: text/plain; charset="utf-8"

On Mon, 2021-03-15 at 15:23 +0800, strong wrote:
> hi, all
> ? ? I am studying how to use gstreamer audiofx plugin to realize
> audio bass/treble/EQ, but it seems that
> the function of audiofx is very foundational, does anybody know to
> realize audio effect and EQ with gstreamer
> plugin?

You can find a graphical example with the equalizer here:
??https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/blob/master/tests/examples/equalizer/demo.c

That probably answers your questions how to use it. If not, please ask
a more specific question.

--
Sebastian Dr?ge, Centricular Ltd ? https://www.centricular.com

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