This patch demonstrates a way to create a video delay effect using jit.matrixset. The jit.matrixset object is essentially an array of Jitter matrices. One of the things you can do with such an array is store a set of past frames of a video to recall later. Here we use the array as a circular buffer of the most recent 30 video frames to come out of jit.qt.movie.
This program assumes that you have a folder of image files (jpg, etc.) that you want to show as a slideshow. This program also assumes that those images all have the same dimensions.
The program assumes images that are 320x240 pixels. If you want to use another size, you should change the dimensions of the jit.qt.movie objects and the size of the jit.window. Images that do not have a 4:3 aspect ratio will get distorted when shown fullscreen, unless some adjustments are made.
This patch uses jit.lcd to draw white text on a black background, uses that monochrome image as the color and alpha channels, colorizes the text using jit.scalebias, and then does an alphablend of the text with a movie.
This patch shows the basics of displaying a movie with Jitter, and also shows the use of movie attributes to learn and use important information about the movie, how to jump around randomly within the movie, an easy way to fade the movie in or out, and how to fill the computer screen with the movie.
This patch demonstrates a simple video file player with simple controls.
This patch demonstrates a simple way to play a video file.
This example demonstrates how to retrieve the timescale and duration values associated with a movie file.
This example lets you loop a movie, and jump to the beginning of the loop point by defining with a ‘looppoints’ attribute, and using ‘getloopstart’ to retrieve the loop’s starting time to be set to the time attribute for the jit.qt.movie object.
Q: I would like to stitch the frames of a MOV and create one big frame in another matrix by stitching all of the frames one after another vertically so I can save it as one bmp. Basically, I would like to create a concatenated film strip image like you can do with ImageMagick or Image Stitcher.
This example shows how to link waveform~ loop points and jit.qt.movie loop points. For information about QuickTime time formats, see "Appendix A of the Jitter Tutorials: QuickTime Confidential".