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Thumbnail Maker is an Arexx script for ArtEffect 4 from Haage & Partner. It uses ffmpeg to generate a series of frames from a selected video, and paste them onto a canvas to create a sequence of thumbnails. Data about the video is printed at the top, along with a user-definable string. I wrote this script for my own use and have decided to share it with other users. Feel free to modify the script for your own devices. This is version 1.04. *New feature*: You can optionally burn the timecode into each frame. Thanks to Mick JT for helping me figure out the syntax of this command. Time is in the format hh:mm:ss and will appear in the top left hand corner. You can select either white or black text. Note that the non-altivec version of ffmpeg 6.01 has a bug and won't work with this feature. If you have this version installed you won't see the option to apply timecode. I recommend updating to the latest version of ffmpeg. *Bug fix*: The default file extensions have been overhauled, so by default more video file types are displayed for selection. *Improvement*: ffmpeg now does the scaling instead of Art Effect. This makes assembling the final image much faster. *Improvement*: The script now looks for ffmpeg in appdir not c, so you can keep your ffmpeg executable anywhere. *Improvement*: A few minor code polishes... Requirements * ArtEffect Version 4. If you have an assign "ArtEffect:" then it remembers the last location a video is saved from and stores this in ArtEffects Settings directory. * FFMpeg. Tested with versions 4.0.2, 4.2.1, 6.1 and 6.1.1 for AmigaOS 4.x. The script checks for ffmpeg in appdir and will quit if it isn't present. * The text printed on the canvas defaults to Verdana 18. The script checks for this in FONTS: and quits if it isn't present. Verdana is part of OS4 system fonts so should be present by default. See also BUGS below. * Depending upon the size of your video, you may require alot of RAM, hard disk space, and CPU cycles. * rexxsupport.library. The script checks for the presence of this and quits if it isn't present. It should be part of the standard OS4 installation. * MD5Sum is used to determine if the non-altivec version of ffmpeg v 6.1 is installed. This should be part of the OS 4 standard install. * Appdir is used to find the ffmpeg executable. This should be part of the standard OS4 install. As ArtEffect is 68k software, and there exists a 68k version of Ffmpeg, this script *might* work on AmigaOS 3.x, but I have only tested it on my X5000. The last two requirements above probably preclude the script running on OS3.x. If you are using OS 3.x, I recommend you keep using version 1.01 and forego the timecode feature. Disclaimer This reads and writes data from a source, and as such an interruption may cause data loss. Use at your own risk. |
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