Re: [gst-devel] Theora w/ farsight2

[sudarshan b. <bis...@gm...>]

Hi ,
Use "sync=false"  property with both the sinks at sending and receiving end
, and then see the behaviour .

2010/7/14 Miron Kunz <mi...@ma...>

> Hi,
>
> My problem seems to be related to Theora encoder.
>
> With the number of discontinued buffers increasing I am likely to get
> distorted image on the receiving end:
>
> 0:01:55.343750000  4492   00DF2698 DEBUG              theoraenc
> gsttheoraenc.c:829:theora_enc_is_discontinuous:<theoraen
> c4> Incoming TS 0:01:50.345187500 exceeds expected value 0:01:48.955312500
> by too much, marking discontinuity
>
> If I increase threshold for late/discontinued buffers - the receiving end
> shows video w/o artifacts.
>
> I am not sure yet how to interpret the observation because I see
> discontinued buffers in this pipeline which still produces the fine video:
> gst-launch --gst-debug="theoraenc:5"
> dshowvideosrc!ffmpegcolorspace!theoraenc!theoradec!ffmpegcolorspace!directdrawsink
>
> One more thing - on every discontinued packet, the theora codec is
> deallocated and reincarnated again by theora_enc_reset(). For performance
> sake it looks suspicious to me.
>
> Thanks,
> Miron
>
>
> >
> > Hi,
> >
> > I updated to Farsight2, 0.0.20
> > set VER_GST=0.10.29
> > set VER_GST_PLUGINS_BASE=0.10.29
> > set VER_GST_PLUGINS_GOOD=0.10.22
> >
> >
> > But I am still getting distorted video when Theora codec is used.
> >
> > Looks like frames between I-frames are not properly decoded.
> >
> > Anything I can check?
> >
> > Thanks,
> > Mironoz
> >
> >
> >
> > > Hi,
> > >
> > > I am using Theora codec w/ farsigh2 (no Telepathy) for video
> conferencing and I am facing distorted video on the receiving end when using
> camera with relatively high resolution on the sending end. Low resolution
> streams are decoded alright by the receiver. I ran receiver/sender on the
> same host so the bandwidth should not be a problem. CPU consumption was low
> too.
> > > The artifacts in the video I see most often are small squares(up to
> 16x16 or so pixels) with 2 white and 1 black stripes in it.
> > >
> > > Here is versions of the gstreamer/farsight2 I am using:
> > >
> > > set VER_GST=0.10.25
> > > set VER_GST_PLUGINS_GL=0.10.1
> > > set VER_GST_PLUGINS_BASE=0.10.25
> > > set VER_GST_PLUGINS_GOOD=0.10.17
> > > set VER_GST_PLUGINS_UGLY=0.10.13
> > > set VER_GST_PLUGINS_BAD=0.10.17
> > > Farsight2 0.0.16
> > >
> > > I read on this list about incompatibilities between certain versions of
> the Fs and gstreamer. I wonder if I am running in it here or it is something
> else.
> > >
> > > Thanks,
> > > Miron
> >
> >
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> >
> >
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-- 
Regards,

Sudarshan Bisht