video frame type identification

Hi,

Is there a way to identify the type of video frame within an encoded packet returned by qtdemux? May be there are some caps I can check on the GstBuffer returned by qtdemux?

Note - I use appsink to pull buffers out of the pipeline and process them - need to know the type of frame for processing the encoded packet

Thanks
Rohit

[Sudarshan Bisht]

 

I think this has been already asked by you in previous mail, and you got the answer also :)

 

 

> Hi Guys,
>
>
> Is there a way to tell if an encoded frame returned by a demuxer(say
> qtdemux) is an inter-Frame (iFrame) or not?
> Right now, I've written a routine to do this by parsing the initial
> few bits but that becomes difficult with increase in number of formats
> to support. Is there a GstBuffer property I can check to see if its an
> iFrame?
>

 Check if the GST_BUFFER_FLAG_DELTA_UNIT flag is set or not. If it's
not set... it's a keyframe.

http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBufferFlag

On Wed, Dec 15, 2010 at 9:31 PM, [hidden email] <[hidden email]> wrote:

Hi,

Is there a way to identify the type of video frame within an encoded packet
returned by qtdemux? May be some caps I can check on the GstBuffer return by
qtdemux?

Note - I use appsink to pull buffers out of the pipeline and process them -
need to know the type of frame for processing the encoded packet

Thanks
Rohit
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Regards,

Sudarshan Bisht

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Yes this was an old mail. Didn't get a response so reposted :) Edward was kind enough to offer help.

Sorry for spamming :)

Thanks

On Wed, Dec 15, 2010 at 9:31 PM, [hidden email] <[hidden email]> wrote:

Hi,

Is there a way to identify the type of video frame within an encoded packet
returned by qtdemux? May be some caps I can check on the GstBuffer return by
qtdemux?

Note - I use appsink to pull buffers out of the pipeline and process them -
need to know the type of frame for processing the encoded packet

Thanks
Rohit
--
View this message in context: http://gstreamer-devel.966125.n4.nabble.com/video-frame-type-identification-tp3089291p3089291.html
Sent from the GStreamer-devel mailing list archive at Nabble.com.

------------------------------------------------------------------------------
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that requires sensitive data to be transmitted over the Web.   Learn how to
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and instills the confidence they need to proceed with transactions.
http://p.sf.net/sfu/oracle-sfdevnl
_______________________________________________
gstreamer-devel mailing list
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