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#46 quicktime_set_video_position inconsistan

open
nobody
quicktime (16)
5
2002-06-10
2002-06-10
Etienne Deleflie
No

Have recently moved to quicktime4linux 1.5.5 and am
experiencing some strange behaviour (compared to
previous 1.4).

It is either quicktime_set_video_position, or
quicktime_decode_scaled.

To reproduce, repeatedly call

quicktime_set_video_position then
quicktime_decode_scaled on the same position of a video
file. (I am using colormodel 19 on a Component video)

The resulting frames (occasionally) gets colours
confused, and the frame is short by a certain number of
pixels.

repeated use makes the frame shorter and shorter, as
though the frame position pointer is actually moving
forward by some bytes.

same behaviour occurs when 'bouncing' ......... ie.
read frame 100 then frame 101 then 100 again.

etienne

Discussion

  • Logged In: YES
    user_id=83549

    This usually happens when using MPEG-4.