CSC 418/2504 Fall 2001: Creating an MPEG file

1. run the program, and record all the frames in PPM files (click the "recording" checkbox). This will create files named "animXXX.ppm", where "XXX" is the frame number.
2. edit "mpeg.dat", and change the second line to read "anim*.ppm [001-nnn]", where "nnn" is the highest frame number recorded.
3. on CDF, type "mpeg_encode mpeg.dat" to create the movie.
4. on MS-Windows, there are several mpeg encoders available. There is called cmpeg at:
   • ftp://x2ftp.oulu.fi/pub/msdos/programming/convert/convmpg3.zip
   For the files produced by the sample code, you can use the following auxiliary files with cmpeg:
   • anim.ctl : control file.
   • anim.lst : list file.
   • cmpeg.bat : MS-DOS script, to run cmpeg.
5. Playing back the movie:
   • On CDF, typing "xanim -Ae anim.mpg" should play the movie. The "-Ae" flag disables audio, otherwise the program may skip video frames to keep up with the audio. Type "man xanim" for more information.
   • On MS Windows, double-click the MPEG file, which should pop up Media Player or RealPlayer.

#!/local/bin/perl
for (1..60) {
  system sprintf "cjpeg anim%03d.ppm > anim%03d.jpg",$_,$_;
}