performance issue when building gstreamer from souce

[Nicolas Dufresne]

Le mer. 18 nov. 2020 10 h 30, Lusine <lusinehayrapetyan1992 at gmail.com> a
écrit :

> Hi Folks,
> On my Ubuntu 18 machine I have installed gstreamer. Version is 1.16.2.
> Running the following command takes 5 second(I've attached screenshot):
> <http://gstreamer-devel.966125.n4.nabble.com/file/t379720/gstreamer1.png>
> gst-launch-1.0 filesrc location=~/videos/shallow_1280.mp4 ! decodebin !
> x264enc ! mp4mux ! filesink location=out.mp4
>
> Then I've uninstalled this gstreamer and built it from the source code with
> meson and ninja and now the same command takes 20 seconds. I've tried the
> latest master branch and 1.16 branch and both are slow:
> <
> http://gstreamer-devel.966125.n4.nabble.com/file/t379720/gstreamer_built.png>
>
>
> I don't know why I see this difference? Maybe there is some missing
> configuration when building gstreamer, I did the following steps for
> building:
> git clone https://gitlab.freedesktop.org/gstreamer/gst-build.git
> cd gst-build
> meson <build_directory>
> ninja -C </path/to/build_directory>
> ninja -C </path/to/build_directory> install
>

Check which decoder is picked by decodebin. It is likely ffmpeg vs openh264.

>
>
> --
> Sent from: http://gstreamer-devel.966125.n4.nabble.com/
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/gstreamer-devel/attachments/20201125/4a0524d5/attachment.htm>