Need help using gst-play and gst-launch

[Tony Houghton]

I recently uploaded some pipeline graphs to <http://realh.co.uk/gst/>. They
show playbins, so there's a lot going on inside, and the subtitles are DVB
from the same source as the video and audio, but hopefully these might
offer you some clues as to how to overlay subpictures onto the video and at
least solve that part of the problem.

On Sun, 11 Oct 2020 at 00:00, gst_kwr <kniwor at yahoo.com> wrote:

> Hi, I'm trying to use my Jetson Nano to watch media on my TV. Totem doesn't
> do a good job with 4k content. I'm not a developer and hence having issues
> using gst-play and gst-launch. I am trying to do the following:
>
> Watch videos with audio and subtitles (external file, not embedded in
> video), including 4k videos.
>
> Problems I have:
> - gst-play works for most videos I have (except 4k ones). However, I don't
> know how to add subtitles from a file, or amplify audio.
> - For 4k videos, the following command works just fine, however I do not
> know how to add subtitles here from an external file: "gst-launch-1.0
> filesrc location=ko.mkv ! decodebin name=decoder decoder. ! queue !
> videoconvert ! autovideosink decoder. ! queue ! audioconvert ! audioamplify
> amplification=4 ! autoaudiosink"
>
> I need:
> - Some way to play my videos where I can show subtitles, amplify audio
> etc..
> through command-line.
>
> I have spent countless hours reading documentation, trying combinations of
> commands, and seeking help in other places:
>
> https://forums.developer.nvidia.com/t/playing-videos-using-gstreamer-on-jetson-nano/153846
>
> Thank you in advance!
>
>
>
> --
> Sent from: http://gstreamer-devel.966125.n4.nabble.com/
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>


-- 
TH
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