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connecting gdkpixbufsink and xvimagesink to a tee

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Erik Blankinship-2

connecting gdkpixbufsink and xvimagesink to a tee

gst-launch videotestsrc ! tee name=t ! queue ! xvimagesink t. ! queue ! gdkpixbufsink

Any ideas why this pipeline does not work? I can videotestsrc directly to either xvimagesink or gdkpixbufsink. And if I swap out gdkpixbufsink for fakesink, that works too.

( I am trying to play back a video and want to grab an occasional frame from the gdkpixbufsink. )

Results in this error:

Pipeline is PREROLLING ...
ERROR: from element /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0: Internal data flow error.
Additional debug info:
gstbasesrc.c(2550): gst_base_src_loop (): /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0:
streaming task paused, reason not-negotiated (-4)
ERROR: pipeline doesn't want to preroll.

Setting pipeline to NULL ...
Freeing pipeline ...

------------------------------------------------------------------------------
Nokia and AT&T present the 2010 Calling All Innovators-North America contest
Create new apps & games for the Nokia N8 for consumers in U.S. and Canada
$10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing
Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store
http://p.sf.net/sfu/nokia-dev2dev
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Sudarshan Bisht

Re: connecting gdkpixbufsink and xvimagesink to a tee

Hi,

xvimagesink supports both yuv and rgb format , but gdkpixbufsink supports only rgb format So while "caps negotiations" yuv format has been aggreed between videotestsrc and xvimagesink , but that is not supported by gdkpixbufsink. But to do your job done you can use ffmpegcolorspace between queue and gdkpixbufsink .

On Sun, Oct 24, 2010 at 5:26 AM, Erik Blankinship <[hidden email]> wrote:

gst-launch videotestsrc ! tee name=t ! queue ! xvimagesink t. ! queue ! gdkpixbufsink

Any ideas why this pipeline does not work? I can videotestsrc directly to either xvimagesink or gdkpixbufsink. And if I swap out gdkpixbufsink for fakesink, that works too.

( I am trying to play back a video and want to grab an occasional frame from the gdkpixbufsink. )

Results in this error:

Pipeline is PREROLLING ...

ERROR: from element /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0: Internal data flow error.

Additional debug info:

gstbasesrc.c(2550): gst_base_src_loop (): /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0:

streaming task paused, reason not-negotiated (-4)

ERROR: pipeline doesn't want to preroll.

Setting pipeline to NULL ...

Freeing pipeline ...

------------------------------------------------------------------------------
Nokia and AT&T present the 2010 Calling All Innovators-North America contest
Create new apps & games for the Nokia N8 for consumers in U.S. and Canada
$10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing
Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store
http://p.sf.net/sfu/nokia-dev2dev
_______________________________________________
gstreamer-devel mailing list
[hidden email]
https://lists.sourceforge.net/lists/listinfo/gstreamer-devel

--
Regards,

Sudarshan Bisht

------------------------------------------------------------------------------
Nokia and AT&T present the 2010 Calling All Innovators-North America contest
Create new apps & games for the Nokia N8 for consumers in U.S. and Canada
$10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing
Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store
http://p.sf.net/sfu/nokia-dev2dev
_______________________________________________
gstreamer-devel mailing list
[hidden email]
https://lists.sourceforge.net/lists/listinfo/gstreamer-devel

Erik Blankinship-2

Re: connecting gdkpixbufsink and xvimagesink to a tee

On Sun, Oct 24, 2010 at 3:46 AM, sudarshan bisht <[hidden email]> wrote:

Hi,

xvimagesink supports both yuv and rgb format , but gdkpixbufsink supports only rgb format So while "caps negotiations" yuv format has been aggreed between videotestsrc and xvimagesink , but that is not supported by gdkpixbufsink. But to do your job done you can use ffmpegcolorspace between queue and gdkpixbufsink .

Thank you! That addition solved the problem.