EMBL Treed MKV file CRC32 is missing

[surendra B]

Thanks Sebastian.

I will log the bug..


On Wed, Jun 18, 2014 at 4:08 PM, Sebastian Dröge <sebastian at centricular.com>
wrote:

> On Do, 2014-06-12 at 19:02 -0700, surendra wrote:
> > Hi Everyone,
> > I am able to record the IP camera H264 stream in to MKV file by using the
> > below pipe line.gst-launch-1.0 -e rtspsrc
> > location="rtsp://10.33.15.1:554/udpstream_ch1_stream1" ! rtph264depay !
> > h264parse ! matroskamux ! filesink location=test1.mkv
> > I am able to play the recorded file with any MKV (h264)compatible player.
> > I am checking the recorded MKV file EBML tree using AVI MUX GUI
> > application(Picture attached with mail).
> > recorded.png
> > <http://gstreamer-devel.966125.n4.nabble.com/file/n4667472/recorded.png>
> > As per the specification of EMBL MKV file also should contain the CRC32
> for
> > the parent filed(see the spec piture)   spec.png
> > <http://gstreamer-devel.966125.n4.nabble.com/file/n4667472/spec.png>
> > Recorded file is missing CRC32 elements.My question is  does matroskamux
> > support or performs the CRC32 computation on the stream and stores in MKV
> > format? Or Do we need to write a plug-in to compute the CRC32 before
> saving
> > in to MKV format?I think the CRC32 elements provide support to check the
> > integrity of the recorded data.Is there any way to enable the CRC32
> > computation on H264 stream in the MKV format.
>
> Currently we don't write any CRC32 elements in matroskamux or webmmux.
> This can be easily added there though, there's no need for a separate
> element.
>
> Can you file a bug about this at http://bugzilla.gnome.org ?
>
> --
> Sebastian Dröge, Centricular Ltd - http://www.centricular.com
> Expertise, Straight from the Source
>
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