Doom9's Forum - View Single Post - stickboy's craptacular AviSynth plug-ins

stickboy · 21st March 2004, 01:40

ApplyEvery

A generalized function that can apply a specified function at regular intervals in a clip. DeleteEvery can be viewed as a specialized version; DeleteEvery(100, 0) is conceptually equivalent to ApplyEvery(100, "DeleteFrame(0)"). (In practice, DeleteEvery is much more efficient, so if you're only deleting frames, use that. Plus, DeleteEvery modifies the frame-rate appropriately.)

This is basically a straight conversion of my JDL_ApplyEvery user-defined function to an AviSynth plug-in.

I tried the following script with my user-defined version:

Code:

BlankClip(length=2100, pixel_type="yuy2")
ShowFrameNumber()
JDL_ApplyEvery(4, "Reverse()")

On my system, the user-defined version can iterate about 525 times (2100 / 4) without crashing; increasing the source clip's frame count by one causes VirtualDub+AviSynth to crash silently.

If I substitute in the plug-in version, I can increase the clip length to over 80000. (That's 20000+ iterations, a ~40-fold increase.) A script with that many iterations is slow to load, however.

This is an experimental, quick-and-dirty build; source currently isn't included but will be forthcoming eventually, after I ponder some possible improvements.

21st March 2004, 01:40	#6 \| Link
stickboy AviSynth Enthusiast Join Date: Jul 2002 Location: California, U.S. Posts: 1,267	New plug-in: ApplyEvery ApplyEvery A generalized function that can apply a specified function at regular intervals in a clip. DeleteEvery can be viewed as a specialized version; DeleteEvery(100, 0) is conceptually equivalent to ApplyEvery(100, "DeleteFrame(0)"). (In practice, DeleteEvery is much more efficient, so if you're only deleting frames, use that. Plus, DeleteEvery modifies the frame-rate appropriately.) This is basically a straight conversion of my JDL_ApplyEvery user-defined function to an AviSynth plug-in. I tried the following script with my user-defined version: Code: BlankClip(length=2100, pixel_type="yuy2") ShowFrameNumber() JDL_ApplyEvery(4, "Reverse()") On my system, the user-defined version can iterate about 525 times (2100 / 4) without crashing; increasing the source clip's frame count by one causes VirtualDub+AviSynth to crash silently. If I substitute in the plug-in version, I can increase the clip length to over 80000. (That's 20000+ iterations, a ~40-fold increase.) A script with that many iterations is slow to load, however. This is an experimental, quick-and-dirty build; source currently isn't included but will be forthcoming eventually, after I ponder some possible improvements. Last edited by stickboy; 31st March 2004 at 23:25.