#101 wrong frame used in video transitions

open
nobody
Cinelerra (81)
5
2004-06-20
2004-06-20
No

Hello,
I am using cinelerra 1.2.0
compiled it on my RH9.
My input material is quicktime videos.

Now I realized a strange behaviour in - i think all -
video transitions.

I want to crossfade from scene A to scene B.
The natural supposed behaviour is, when at the end of
the scene A he crossfades the last frame of scene A to
the first frame of scene B.

But actually in my case the beginning, the first frame
of scene A is crossfaded to the first frame of scene B.

If any other information about libraries... ist used,
I'd like to provide them.

Regards
Cornelius

Discussion

  • Cornelius Kölbel

    Logged In: YES
    user_id=679733

    Hello,

    this problem is still there in version 1.2.1

    Or can anyone tell me, this is not a problem of cinelerra
    but one of my configuration?
    Thanks
    Cornelius

     
  • Herman Robak

    Herman Robak - 2004-08-22

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    user_id=660969

    Do you by chance use the "nudge" feature? See <http://bugs.cinelerra.
    org/show_bug.cgi?id=113>, in the bugtracker of cvs.cinelerra.org.

    Could you download this mini-testsuite <http://cvs.cinelerra.org/test1.
    tgz>, and apply a transition in the project a1a2-10s_2nd-gen.xml ? It
    has counters that let you see which frames you get.

    --
    herman at skolelinux no

     
  • Cornelius Kölbel

    Logged In: YES
    user_id=679733

    Hello,

    I don't think I got this nudge problem. (If I undestood it
    right)
    I donwloaded the test project and applied the
    Flash Transition:

    These are the frames near the transition:

    A1 4:20
    A1 4:21
    A1 4:22
    A1 4:23
    A1 0:00
    A1 0:00 brighter1
    A1 0:00 brighter2
    A1 ...
    A1 0:00 brighter12
    A2 0:13 bright
    A2 0:14 bright
    A2 0:15 bright
    A2 0:16 ....

    This is what I said, that he takes the first frame of the
    first video and fades away. But in a transition I would
    expect, that he takes the last frame of the first video and
    fades to the first frame of the second video.

    Do you got any ideas?

    Regards
    Cornelius

     
  • Herman Robak

    Herman Robak - 2004-08-27

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    user_id=660969

    This IS a bug in Cinelerra. But as far as I know, it is caused by using
    "nudge". Try setting "nudge" (in the patchbay) to zero.

     
  • Cornelius Kölbel

    Logged In: YES
    user_id=679733

    Hi,

    after having realized, what nudge is, I checked it and saw,
    that it _was_ set to zero. But still I get this effect! :-(
    I added a screen shot.
    Meanwhile I updated to 1.2.1

    Cornelius

     
  • Cornelius Kölbel

    Wrong frame in transition

     
  • Herman Robak

    Herman Robak - 2004-08-31

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    user_id=660969

    The screenshot looks right; the transition starts at the cut point. I need
    a sequence or a video to see how and where it fails.

    Please render an MJPEG .mov of 1 second before and after the
    transition (use a low quality, e.g. 50%). That would be 2 seconds, and
    should be fairly small.

     
  • Cornelius Kölbel

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    user_id=679733

    Hi, I attached a file with a transition between the blue and
    the yellow frames.

    I will try also to do a second file.

     
  • Cornelius Kölbel

    transition from A1 (blue) to A2 (yellow)

     
  • Nobody/Anonymous

    Logged In: NO

    fixed in cvs anyway

     
  • Cornelius Kölbel

    Logged In: YES
    user_id=679733

    Hi,
    where can I get the cvs?

    What is the cvsroot?

    Regards
    Cornelius

     
  • Cornelius Kölbel

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    user_id=679733

    OK, I found it in "/cvsroot/heroines co cinelerra".

     
  • Nobody/Anonymous

    Logged In: NO

    FYI:
    <http://cvs.cinelerra.org/cvsusage.html>

     

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