Seeking of Subtitle along with video

[kirrthana]

Hi All,
 
I’m using gstreamer to develop a video player with subtitle enabled. I’m using playbin2 with suburi set. I have a requirement to seek the video at the beginning and start playback. And I found that video is playing from the new position after seek, but the subtitle starts from the beginning and it hangs. I’m sending a seek event to seek the video, but I’m not sending any event for text . Do I need to do something to seek the subtitle file as well or that will be taken care internally.
 
Please Let me know if I’m missing something.
 
Thanks & Regards,
Kirrthana
 

[Tim-Philipp Müller-2]

On Fri, 2011-11-04 at 01:48 -0700, kirrthana wrote:

Hi,
 
> I’m using gstreamer to develop a video player with subtitle enabled. I’m
> using playbin2 with suburi set. I have a requirement to seek the video at
> the beginning and start playback. And I found that video is playing from the
> new position after seek, but the subtitle starts from the beginning and it
> hangs. I’m sending a seek event to seek the video, but I’m not sending any
> event for text . Do I need to do something to seek the subtitle file as well
> or that will be taken care internally.

If you're using playbin(2), just use gst_element_seek() or
gst_element_seek_simple() to initiate a seek. If things don't work as
expected after that, that's probably a bug of some sort.

(If you have external subtitles, the subparse element (or whatever is
used) may start reading things from the beginning again, but of course
the subtitles matching the video should show up after seek.)

 Cheers
  -Tim

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[kirrthana]

Hi,

Thanks for the info.

I have external subtitles. When i trigger gst_element_seek() the video gets seeked to the new position ,but the subtitle still starts from the beginning.

My understanding is the subtitle has to start from the new position as video after the seek, Is the current implemetation of subparse does not support the above functionality or am in missing something because of which im not able to seek the subtitles as well.

Thanks & Regards,
Kirrthana