What codec does Flash Video use?
A15. This is a very popular question, but it’s pretty ambigous since a “codec” and an “encoding tool” are not necessarly the same thing and the person typically asking this question is usually looking for an encoding tool they can use to make an FLV. If you are that end-user and need to create an FLV, see the answer to Q1. If you really do understand the difference between a codec vs. an encoder vs. a decoder; or you are familiar with the differences between compresssion and encoding; or you know which of those are trick questions, than here’s your answer: There are a number of codecs that can encode video into Flash Video format including the Spark codec from Sorenson (included in their ACE Engine); the Flix codec from On2; the ffmpeg open source codec; and a couple of others.
