subtitle qtmux Question!

[JongIlLee]

hi

I am new to GStreamer and am trying to encode a video stream (for now v4l2src) with a subtitle stream and muxed into a quicktime container.
I am able to pass in a .srt file with subtitles that are then encoded into the text stream.
However I am wanting to use the subtitle stream to encode 'metadata' that is generated while the video is being recorded. I could use textoverlay but do not want to burn the meta-data onto the image.
It is not this way?

[Nicolas Dufresne-4]

Le lundi 11 juillet 2016 à 01:12 -0700, JongIlLee a écrit :
> I am new to GStreamer and am trying to encode a video stream (for now
> v4l2src) with a subtitle stream and muxed into a quicktime container.
> I am able to pass in a .srt file with subtitles that are then encoded into
> the text stream.
> However I am wanting to use the subtitle stream to encode 'metadata' that is
> generated while the video is being recorded. I could use textoverlay but do
> not want to burn the meta-data onto the image.
> It is not this way?

You could also inject tags. GST_TAG_COMMENT and/or
GST_TAG_EXTENDED_COMMENT could be appropriate. There is also
GST_TAG_PRIVATE data. Note that the choice of container will greatly
affect the tags you can use. You could compare quicktime container
against matroska for this manner.

Nicolas
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