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List:       theora-dev
Subject:    [theora-dev] Time in video file
From:       "Bjoern D. Rasmussen" <bjoern.d.rasmussen () gmail ! com>
Date:       2011-03-15 17:36:30
Message-ID: AANLkTim2QG53r-Zg-Gf-PvcVSqroGzqghDi7tvdJekdX () mail ! gmail ! com
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Hi

I'm trying to store video I encode to a file using Theora and Ogg. The
video I record is from my webcam and although the framerate is set to
30 fps I rarely get more then 28-29 fps. Since Theora is fed with a
framerate which isn't precise the time of each frame when I play it in
VLC doesn't match the exact time of when the frame occurred. So
basically I wonder how can I sync a video frame to a clock using
Theora and Ogg?

I tried looking at th_granule_time() and ogg_page_granulepos() but
they seem to be concerned with the frame number and not time of the
frame.

Thanks for a great video codec!

Regards

Bjoern
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