no element ksvideosrc

[rfn]

Hi everybody,
I'm fairly new to gstreamer, so excuse if this is trivial.

I have a working pipeline in linux using :

     descr = g_strdup_printf ("v4l2src device=/dev/video0 !
video/x-raw,format=GRAY16_LE ! videoscale !
     video/x-raw,width=640,height=480 ! videoconvert ! appsink name=sink");

     data->pipe = gst_parse_launch (descr, &error);


Now I am trying to get the equivalent code for windows. I was trying by
changing the source, using:      /ksvideosrc device-name=*device-name*/    
instead of:      /v4l2src device=/dev/video0/

This returns: /No element ksvideosrc/

However, if I execute on the cmd :

gst-launch-1.0 ksvideosrc device-name=*device-name* !
video/x-raw,format=GRAY16_LE ! videoscale ! video/x-raw,width=640,height=480
! videoconvert ! autovideosink

it works just fine. Since ksvideosrc works on the command line but not on
the code, I am guessing that some kind of include, library ... is missing. I
have tried including basically every .dll and library. I used both gstreamer
runtime and development installers on complete mode. Any idea on what can it
be?

Kind regards,
Raul.





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[Thornton, Keith]

Hi,
try the same with videotestsrc, It maybe that the environments in which they are running are different. /PATH,GST_PLUGIN_PATH).
Gruesse

-----Ursprüngliche Nachricht-----
Von: gstreamer-devel <[hidden email]> Im Auftrag von rfn
Gesendet: Mittwoch, 3. März 2021 17:24
An: [hidden email]
Betreff: no element ksvideosrc

Hi everybody,
I'm fairly new to gstreamer, so excuse if this is trivial.

I have a working pipeline in linux using :

     descr = g_strdup_printf ("v4l2src device=/dev/video0 !
video/x-raw,format=GRAY16_LE ! videoscale !
     video/x-raw,width=640,height=480 ! videoconvert ! appsink name=sink");

     data->pipe = gst_parse_launch (descr, &error);


Now I am trying to get the equivalent code for windows. I was trying by
changing the source, using:      /ksvideosrc device-name=*device-name*/    
instead of:      /v4l2src device=/dev/video0/

This returns: /No element ksvideosrc/

However, if I execute on the cmd :

gst-launch-1.0 ksvideosrc device-name=*device-name* !
video/x-raw,format=GRAY16_LE ! videoscale ! video/x-raw,width=640,height=480 ! videoconvert ! autovideosink

it works just fine. Since ksvideosrc works on the command line but not on the code, I am guessing that some kind of include, library ... is missing. I have tried including basically every .dll and library. I used both gstreamer runtime and development installers on complete mode. Any idea on what can it be?

Kind regards,
Raul.





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[Eric Zerbib]

C:\gstreamer\1.18.0\msvc_x86_64\bin>gst-inspect-1.0.exe ksvideosrc

Factory Details:

  Rank                     primary (256)

  Long-name                KsVideoSrc

  Klass                    Source/Video/Hardware

  Description              Stream data from a video capture device through Windows kernel streaming

  Author                   Ole Andr? Vadla Ravn?s <[hidden email]>

Haakon Sporsheim <[hidden email]>

Andres Colubri <[hidden email]>

 

Plugin Details:

  Name                     winks

  Description              Windows kernel streaming plugin

  Filename                 C:\gstreamer\1.18.0\msvc_x86_64\lib\gstreamer-1.0\gstwinks.dll

  Version                  1.18.3

  License                  LGPL

  Source module            gst-plugins-bad

  Source release date      2021-01-13

  Binary package           GStreamer Bad Plug-ins source release

  Origin URL               Unknown package origin

 

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