CHAPTER 10 MP3
Although MP3 was originally designed for MPEG-1 (It’s short for MPEG-1, Layer III audio), it is almost never seen in MPEG-1 files. However, it’s massively popular as a standalone audio-only file format, and also used as a codec in media files, particularly “DivX” AVI files with MPEG-4 part 2 video.
MP3 was largely created by Fraunhoffer IIS. As part of an ISO standard, sample source code for MP3 encoding and decoding was released well before the licensing terms were announced. Many different software vendors created MP3 encoding and playback software while the technology’s legal status was murky, and later had to pay retroactive license fees. Although it wasn’t planned this way, it turned out to be an excellent way to launch the ...
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