Closed Captioning pipeline ??

[Dark_Knight]

Can anybody share how to use CCextractor and CC708overlay in gstreamer 1.15
closecaption .
Sample pipeline would be more useful.



Thank You.



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[Sebastian Dröge-3]

On Sat, 2019-01-26 at 04:12 -0600, Dark_Knight wrote:
> Can anybody share how to use CCextractor and CC708overlay in
> gstreamer 1.15
> closecaption .
> Sample pipeline would be more useful.

What's your use case exactly?

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[Dark_Knight]

i just want to extract closed caption from a strean convert it to 708 and
later  combine that with my video stream. Not sure to use cc708overlay or
cccombiner.



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[Sebastian Dröge-3]

On Wed, 2019-01-30 at 10:24 -0600, Dark_Knight wrote:
> i just want to extract closed caption from a strean convert it to 708
> and later  combine that with my video stream. Not sure to use
> cc708overlay or cccombiner.

Do you want to burn in the captions into the video stream, or forward
it as a separate stream? cc708overlay does the former.

Where does you video and the CCs come from, where should they go
exactly? Source element, container formats, codecs, sink element are
what would be useful to know :)

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[chakra]

Can I use CCCOMINER to add text stream to gst-rtsp-server?

I have a use case where I want to send some metadata telemetry of stream
from ip camera like GPS information as text along with  video

So with gst-rtsp-server where h264 encoded video is payloaded as rtph264pay
name="pay0" I want to send this metadata text stream along.

Can I use this cccombiner and ccextractor for my use case?

I want to send metadata as parallel stream via RTP along with video or some
rtp headers within stream, but not burning on video frame. So no encoding of
text into video

Please let me know if closed captions can help here or any other options to
do this in better way?

Any examples would be really helpful

Thanks



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