vp8 encoding from windows desktop
Sergio Andrés Basurco Mancisidor
chuckleplant90 at gmail.com
Mon Feb 10 00:05:15 PST 2014
Sorry maybe noisy wasn't too explanatory. I meant the result looked quite
compressed/pixelated. I'm trying to avoid any compression and stream
maximum resolution and image quality. I've tried a simplified pipeline and
the result seems better. But framerate drops a lot.
I'm just wondering whether my computer is capable of high framerate and
quality at the same time. My intention was to encode keyframe only so there
wasn't any interpolated images, and to set a high bitrate to compensate.
Thanks a lot!
2014-02-08 20:13 GMT+01:00 Sebastian Dröge <sebastian at centricular.com>:
> On Fr, 2014-02-07 at 13:29 +0100, Sergio Andrés Basurco Mancisidor
> > Hi I'm on Windows trying to stream my screen to webm. I'm using this for
> > testing my encoding:
> > $ gst-launch-1.0.exe dx9screencapsrc x=0 y=0 width=800 height=600 !
> > video/x-raw,framerate=25/1 ! videoconvert ! queue ! vp8enc end-usage=vbr
> > target-bitrate=512000 buffer-size=10000 buffer-initial-size=6000
> > buffer-optimal-size=8000 keyframe-mode=1 keyframe-max-dist=1
> > max-intra-bitrate=1 ! webmmux streamable=true ! filesink
> > location="c:/myself/file.webm"
> > I'm getting a very noisy result. Maybe it is because I'm writing to disk.
> > But I'm quite certain I'm doing something wrong. What I want is to have
> > most balanced quality/speed ratio..
> > [...]
> What do you mean with noisy? Can you upload such a video stream or
> describe it more detailed?
> Also try to find the culprit in your pipeline by creating a minimal
> pipeline that reproduces the problem. For example check if
> dx9screencapsrc is outputting good video (output to d3dvideosink for
> example). Or check if a different input passed to vp8enc is broken in a
> similar way.
> Sebastian Dröge, Centricular Ltd - http://www.centricular.com
> Expertise, Straight from the Source
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
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