1/22/2024 0 Comments Playback point![]() ![]() message (or any other speed) will pick things up where it left off. Start the movie's playback (with the start message), then click on the rate messages to see the alteration. will play the movie backwards at normal speed rate 0.5 moves the clip forwards at ½ speed. The rate message tells the imovie object to change the playback speed of the movie clip, where the value 1. Next is a row of five different rate messages. ![]() Note that start begins the movie at the beginning every time you send that message. The top four messages provide some basic commands: the read message will read in a specified movie file start will cause it to begin playing stop will cease playing the file. Just above the imovie object is an array of message boxes that send commands to the object. We will use this instance of imovie, along with several control messages, to display and control QuickTime movie playback. The number with crosshairs is a video clip that the object has loaded when we opened the patcher it's called countdown15.mov. This display area is actually the imovie object, and it allows you to embed a QuickTime movie clip directly inside a patcher. This file loads with a number of subpatches and one large display area - this should initially be showing a number inside cross-hairs. To open the tutorial patch, click on the Open Tutorial button in the upper right-hand corner of the documentation window. (Incidentally, the imovie object has been a part of Max since the early '90s, long before Apple decided to sell a program by that name.) Once you get comfortable with imovie, you'll find it easy to use its Jitter equivalent jit.movie or jit.playlist, which allows you to not only play video but send it into the Jitter matrix processing system to dynamically add effects, perform compositing operations, and develop more advanced video-based systems. ![]() While the imovie object provides a lot of functionality for working with video media within Max, the Jitter set of object extensions for Max provide much more. We will also learn to load and switch between videos, opening the door for interactive performance patches. We will use imovie to load and play videos as well as manipulate the playback speed and playback location. The QuickTime developer tools were used to create several objects for Max one of the most important is the imovie object, which displays video content inside of a patcher. We will also learn about using Max’s built-in file browser to find useful video content, and learn a few ways to manipulate movie playback in realtime.Īpple’s QuickTime system is well-known as a movie-playing mechanism, but it also provides software developers with a rich toolbox for playback and manipulation of many types of media content. In this tutorial, we will be focused on the display of movies using Apple’s QuickTime video playback tools. ![]()
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