Re: Making video from Audacity?

Hmm, this is on a Raspberry Pi under Raspbian.  There seems to be a
partial or broken gstreamer.  dpgk-query shows

ii  gstreamer0.10-alsa:armhf              0.10.36-2
          armhf        GStreamer plugin for ALSA
ii  gstreamer0.10-plugins-base:armhf      0.10.36-2
          armhf        GStreamer plugins from the "base" set
ii  gstreamer1.0-alsa:armhf               1.14.4-2
          armhf        GStreamer plugin for ALSA
ii  gstreamer1.0-libav:armhf
1.15.0.1+git20180723+db823502-2        armhf        libav plugin for
GStreamer
ii  gstreamer1.0-omx                      1.14.4-1+rpt1
          armhf        GStreamer OpenMAX plugins
ii  gstreamer1.0-omx-rpi                  1.14.4-1+rpt1
          armhf        OpenMax plugins for GStreamer
ii  gstreamer1.0-omx-rpi-config           1.14.4-1+rpt1
          armhf        OpenMax plugins for GStreamer
ii  gstreamer1.0-plugins-bad:armhf        1.14.4-1+b1
          armhf        GStreamer plugins from the "bad" set
ii  gstreamer1.0-plugins-base:armhf       1.14.4-2
          armhf        GStreamer plugins from the "base" set
ii  gstreamer1.0-plugins-good:armhf       1.14.4-1+rpt1
          armhf        GStreamer plugins from the "good" set
ii  gstreamer1.0-plugins-ugly:armhf       1.14.4-1
          armhf        GStreamer plugins from the "ugly" set
ii  gstreamer1.0-x:armhf                  1.14.4-2
          armhf        GStreamer plugins for X11 and Pango
ii  libgstreamer-gl1.0-0:armhf            1.14.4-2
          armhf        GStreamer GL libraries
ii  libgstreamer-plugins-bad1.0-0:armhf   1.14.4-1+b1
          armhf        GStreamer libraries from the "bad" set
ii  libgstreamer-plugins-base0.10-0:armhf 0.10.36-2
          armhf        GStreamer libraries from the "base" set
ii  libgstreamer-plugins-base1.0-0:armhf  1.14.4-2
          armhf        GStreamer libraries from the "base" set
ii  libgstreamer0.10-0:armhf              0.10.36-1.5
          armhf        Core GStreamer libraries and elements
ii  libgstreamer1.0-0:armhf               1.14.4-1
          armhf        Core GStreamer libraries and elements
ii  libreoffice-avmedia-backend-gstreamer 1:6.1.5-3+rpi1+deb10u6+rpt1
          armhf        GStreamer backend for LibreOffice

But I don't find gst-launch other than the rygel one which I just
installed from the debs.
gst-inspect-1.0: command not found

I've never explicitly used gstreamer so I don't know anything about
it, just seen the name as a requirement.



On 9/25/20, Stuart Longland <[email protected]> wrote:
> On 10/9/20 12:19 pm, Alan Corey wrote:
>> Wacky idea probably.  But most social media sites won't let you post
>> an mp3 (might be copyrighted) but will let you post videos.  So do a
>> video of the Audacity main window with the cursor moving through the
>> waveform as the audio is played.  Yes, you could capture a screen area
>> with ffmpeg and try to sync it to the audio.  Just an idea.  You can
>> feed frames and probably the audio through ffmpeg.  Sharp lines won't
>> make a good MPEG though.
>
> I'd probably have a look at gstreamer and see if there's a
> "visualisation" plug-in that would do what you want.
>
> https://gstreamer.freedesktop.org/documentation/audiovisualizers/index.html
>
> Something like:
>
>> gst-launch-1.0 filesrc location="${HOME}/music/by-track-artist/Santana/Let
>> It Shine.ogg" ! oggdemux ! vorbisdec ! tee name=t ! queue ! audioconvert !
>> mux. t. ! queue ! audioconvert ! spectrascope ! videoconvert ! avenc_mjpeg
>> ! mux. avimux name=mux ! filesink location=/tmp/test.avi
>
> might do what you want.
> --
> Stuart Longland (aka Redhatter, VK4MSL)
>
> I haven't lost my mind...
>   ...it's backed up on a tape somewhere.
>
>
> _______________________________________________
> Alsa-user mailing list
> [email protected]
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>


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