[gst-devel] Which CODEC for mjpg?

Thg. thiagossantos at gmail.com
Mon Nov 29 20:58:01 CET 2010


On Mon, Nov 29, 2010 at 4:45 PM, Brian Michalk <michalk at awpi.com> wrote:

> Actually, I have tried a great many variations to try to get this to work.
>
> So, if it is a problem in the AVI demuxer, I assume that this is not an
> issue I can resolve.
>

You can file a bug and provide this file.

http://bugzilla.gnome.org



>
> Bummer.  Perhaps I can get the source videos in some other format.
>
> On 11/29/2010 1:39 PM, Michael Smith wrote:
> > You already said it was an AVI file, so I don't know why you're now
> > trying to decode it without an avi demuxer.
> >
> > As I said previously, the problem is clearly that the AVI demuxer
> > isn't recognising this FOURCC, and fixing that would make it work.
> >
> > Mike
> >
> >
> > On Mon, Nov 29, 2010 at 11:13 AM, Brian Michalk<michalk at awpi.com>
>  wrote:
> >> I have also tried
> >>
> >> gst-launch -v filesrc location=<my file>  ! jpegdec ! ffmpegcolorspace !
> >> ximagesink
> >>
> >> And it terminates without error after about a millisecond, but doesn't
> >> show any video.  I can play this file in VLC.
> >>
> >> On 11/29/2010 12:46 PM, Michael Smith wrote:
> >>> JPEG is decoded by the 'jpegdec' element, in the jpeg plugin.
> >>>
> >>> The problem you're describing sounds like the AVI demuxer doesn't
> >>> recognise this file as containing jpeg, though. Perhaps another
> >>> mapping entry needs adding to the riff lib.
> >>>
> >>> Mike
> >>>
> >>>
> >>> On Mon, Nov 29, 2010 at 10:28 AM, Brian Michalk<michalk at awpi.com>
>  wrote:
> >>>> I am trying to put together a gst-launch pipeline to play some AVI
> >>>> files.  I'm using
> >>>>
> >>>> gst-launch -v uri=<my input filename>
> >>>>
> >>>> And the errors it returns:
> >>>> *** Message: don't know how to handle video/x-avi-unknown,
> >>>> fourcc=(fourcc)mjpg
> >>>> ERROR: from element /GstPlayBin:playbin0: You do not have a decoder
> >>>> installed to handle this file.  You might need to install the
> necessary
> >>>> plugins.
> >>>>
> >>>> So, which plugin do I need to decode this file?  I have browsed the
> >>>> plugins page, but can't find an mjpg capability.
> >>>>
> >>>>
> ------------------------------------------------------------------------------
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> >>>
> ------------------------------------------------------------------------------
> >>> Increase Visibility of Your 3D Game App&    Earn a Chance To Win $500!
> >>> Tap into the largest installed PC base&    get more eyes on your game
> by
> >>> optimizing for Intel(R) Graphics Technology. Get started today with the
> >>> Intel(R) Software Partner Program. Five $500 cash prizes are up for
> grabs.
> >>> http://p.sf.net/sfu/intelisp-dev2dev
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> >>
> >>
> ------------------------------------------------------------------------------
> >> Increase Visibility of Your 3D Game App&  Earn a Chance To Win $500!
> >> Tap into the largest installed PC base&  get more eyes on your game by
> >> optimizing for Intel(R) Graphics Technology. Get started today with the
> >> Intel(R) Software Partner Program. Five $500 cash prizes are up for
> grabs.
> >> http://p.sf.net/sfu/intelisp-dev2dev
> >> _______________________________________________
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> >>
> >
> ------------------------------------------------------------------------------
> > Increase Visibility of Your 3D Game App&  Earn a Chance To Win $500!
> > Tap into the largest installed PC base&  get more eyes on your game by
> > optimizing for Intel(R) Graphics Technology. Get started today with the
> > Intel(R) Software Partner Program. Five $500 cash prizes are up for
> grabs.
> > http://p.sf.net/sfu/intelisp-dev2dev
> > _______________________________________________
> > gstreamer-devel mailing list
> > gstreamer-devel at lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>
>
>
> ------------------------------------------------------------------------------
> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> Tap into the largest installed PC base & get more eyes on your game by
> optimizing for Intel(R) Graphics Technology. Get started today with the
> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
> http://p.sf.net/sfu/intelisp-dev2dev
> _______________________________________________
> gstreamer-devel mailing list
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> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>



-- 
Thiago Santos
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