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Questions tagged [avisynth]

61 questions
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Avisynth handle odd even pairs of frames

I need to read pairs of frames with avisynth and process them. eg frame1 + frame2 => result1 frame2 + frame3 => result2 frame3 + frame4 => result3 I know the selecteven() and selectodd() commands but they give me frame1 and 2 then frame3 and…
Avisynth newbie
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Ffmpeg avs to avi lossless conversion

How to convert avs (Avisynth file) to avi without loss of quality? Firstly, I'm changing avs to 264: ffmpeg -i "Source.avs" -c:v libx264 -preset veryslow -crf 24 "Output.264" Secondly, I'm trying to convert 264 to avi: ffmpeg -i "input.264"…
Piotr
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Best practice to play segments of larger video files in HTML5 video format

I have to migrate a legacy project from Windows Media to HTML5 video/audio. The system should provide video/audio content to the web user meeting following criteria: Playout: Segments (TcIn to TcOut) of large video/audio files should be played…
zx98
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How to reduce the size of a side by side video comparison without definition loss

I have combined two different protein simulation videos (each 700 KB) to a single video for side by side comparision horizontally, but the single file size has increased to 130 MB. I have used Virtualdub and Avisynth for this purpose. I have…
catuf
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avisynth "transparent" overlaying audio

How overlay audio onto other audio? I want to make a FadeIO(..) feature for audio channels of clips in avisynth. I have this script video = DirectShowSource("Z:\video\vvv.mp4", fps=fps_count, audio=true, convertfps=true).AssumeFPS(fps_count,…
skynet_v
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avisinth text effect up and down (ideas for down?)

I wrote a script to write some text into a video clip with some effect is not clear how it work (but work) a=AVIFileSource("C:\downloads\FREE.avi") #take file free.avi ovText = "AviSynth Authors:"+chr(13)+ \…
Vincenzo Di Franco
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Avisynth - Add image to video for X amount of frame then remove image

Total nooby Avisynth question. I'm trying to add an image at a set point in a video then remove it at a set point. Eg. Video starts, then plays for 100 frames, then image is visible for 200 frames in top right corner of initial video, then…
Mr J
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How can I trigger/load avisynth like media player classic or ffmpeg.exe does?

I have an avs script say sample.avs If I drop this on media player classic or do open with OR or I use the script with ffmpeg.exe it works.But if I simply type sample.avs on the command prompt the file opens in notepad.Can I write some code in C# to…
rsjethani
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Stacking 2 videos horizontal with x264

I have two videos of the same length and dimension encoded and I want to combine them into one video in such way, that both videos are viewed next to each other in a single video file. I'm looking for a solution that makes use of the x264 encoder (+…
Henrik
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AviSynth Out of Memory Error (100s of image overlays)

I want to overlay multiple images on my video at different times. I have user function defined as function myFunction(clip c, int coordinateX, int from, int to) { c = c.trim(0, from-1) + c.trim(from, to).Overlay(myImage, x=coordinateX, y=667,…
svenkapudija
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Is it possible to create bookmarks on certain frames?

Is it possible to create multiple bookmarks on the timeline that represent specific frames? Let's say i want to open an .avs file and it will have several "bookmarks" on the timeline representing frames that are of interest. Does this thing exist in…
MaxPower
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Cutlist -> Frame Ranges for Loop/Trim

How do I convert a cutlist of start: hours:minutes:seconds:milliseconds end: hours:minutes:seconds:milliseconds start1: hours:minutes:seconds:milliseconds end1: hours:minutes:seconds:milliseconds ... into frames ranges for Loop(0,start,end)…
Brutus Cruciatus
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On removing silence from videos

I have a video with voice over. I extracted it's audio. I extracted a cutlist from adobe audition of this audio like this: Start: 00:00:12:00 End: 00:00:13:00 These are the parts that are silence and that are to be removed. I converted these to…
Brutus Cruciatus
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Save video read from VirtualDubMod to file using command line only?

I want to compile several video clips using Avisynth on a server. I generate the .avs file and let VirtualDubMod read the file. How do I save the video read from VirtualDubMod to an avi file using the command line only? If I open VirtualDubMod then…
Simon Zettervall
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How to get the current frame number in AviSynth?

In AviSynth, is there a function that returns the current frame number? If not, how can I get the current frame number? That's my question, but for quality standards: The goal is the use it in a conditional statement so it's clear what one is…
Louis Waweru
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