Decklink plugin only works with videotestsrc (so it seems)

[João Paulo Pizani Flor]

Didn't work with neither of them. Not with colorspace, not with
ffmpegcolorspace...

The message I got this time was:
" ERROR: Pipeline doesn't want to pause. "

Anyways, I'll keep trying hard this afternoon, and I'll post my
results back here in case of any success, so that people don't need to
go into this maze just to make the decklink work :)

cheers,

João Paulo Pizani Flor
joaopizani at gmail.com



On Fri, Dec 16, 2011 at 9:35 AM, Stefan Sauer <ensonic at hora-obscura.de> wrote:
> On 12/15/2011 05:56 PM, João Paulo Pizani Flor wrote:
>> HI all, I've been trying to use the decklinksink GStreamer element
>> lately, and with little success...
>>
>> The following gst-launch command-line works flawlessly:
>> "  gst-launch-0.10 videotestsrc ! decklinksink  "
>>
>> And shows the SMTPE bars on my TV. I could even use textoverlay to
>> create a nice soviet screen :) The following ALSO works (ALSO using
>> videotestsrc):
>> "  gst-launch-0.10 videotestsrc pattern=red ! textoverlay text="Сою́з
>> Сове́тских Социалисти́ческих Респу́блик" valignment=center
>> font-desc="Sans Bold 20" color=16776960 ! decklinksink  "
>>
>> BUT, when I try to use filesrc in a very simple pipeline, it all goes
>> bad. The following gst-launch command gives no error, and the pipeline
>> state is PLAYING, but my screen remains black:
>> "  gst-launch-0.10 filesrc location=/home/joaopizani/btest.mp4 !
>> decodebin2 ! autoconvert ! decklinksink  "
> don't put autoconvert there. Try colorspace or ffmpegcolorspace.
>
> Stefan
>
>
>> I think I have isolated any problem with my card and/or driver, because:
>>
>> 1) It works with videotestsrc very well!
>> 2) The failing command, when I change "decklinksink" to "xvimagesink",
>> also works OK.
>>
>>
>> Do any of you guys have any experience using decklinksink? If if you
>> don't, does any of you have any idea of what's happening to me? :)
>>
>> PS: Perhaps David Schleef, the creator of the decklink plugin is around here...
>>
>>
>> Thanks, folks!
>>
>> João Paulo Pizani Flor
>> joaopizani at gmail.com
>> 4S Broadcasting - Florianopolis - Brazil
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>
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