How to define frame start and end frame?

[Unrok]

Well, I made a logo(clip_2) in the After Effects and want to use in a video, however I don't know as to define the frame that it goes to start and the frame that goes to finish.
Example: The logo(clip_2) it must appear in frame 238 and disappear in frame 408. How I could make this?

I used this codigo to join the two videos:
################################################################
clip_1=ConvertToYUY2(AVISource("speed_full.avi"))
clip_2=ConvertToYUY2(AVISource("Speed_Logo_1.avi"))
clip_3=Layer(clip_1,clip_2,"lighten",255,0,0,use_chroma=true)
Levels(clip_3,3,1,255,8,240)
################################################################

I was trying to use the "Animate" to make clip2 to appear in frame 238 and to disappear in frame 408

Animate(238,408,"Layer",clip_2,"lighten",255,0,0, clip_2,"lighten",255,0,0)

However I did not get success.

Somebody could clarify me this doubts or another way to make this. :confused:

[stickboy]

Try this: clip_1.Trim(0, 237) \
+ clip_1.Trim(238, 407).Layer(clip_2, "lighten", 255, 0, 0, use_chroma=true) \
+ clip_1.Trim(408, 0)
However I did not get success.

Somebody could clarify me this doubts or another way to make this.In general when you ask such questions, you should post what error message you get.

[vcmohan]

The thread at
http://forum.doom9.org/showthread.php?t=96106
just has this going on right now. Probably both these can be merged.