Avisynth start video from specific frame (not beginning)

[VidNoob123]

v1 = LSMashVideoSource("D:\1.mp4")

how can i specify at what frame to start playback?

[poisondeathray]

v1 = LSMashVideoSource("D:\1.mp4")

how can i specify at what frame to start playback?

http://avisynth.nl/index.php/Trim

Trim(start frame, end frame)

Numbers are inclusive

Use end frame = 0 if you want the until end

e.g start on frame 100, until the end of clip

v1 = LSMashVideoSource("D:\1.mp4")
v1 = v1.Trim(100,0)

Return v1

[Quint]

Add:

v1 = Trim(v1, frame, 0)

return v1

Of course your number instead of "frame".

Oops. Already helped...