Friday, July 23, 2010
1:42 PM

The Story of the VP8 Encoder and Decoder

An x264 developer blogs about the work on writing a decoder for ffmpeg and how the code is not really perfect and the spec not really existing:

For example, Google’s decoder will, if told to “swap the ALT and GOLDEN reference frames”, overwrite both with GOLDEN, because it first sets GOLDEN = ALT, and then sets ALT = GOLDEN. Is this a bug? Or is this how it’s supposed to work? It’s hard to tell — there isn’t a spec to say so.
-- x264dev

Interesting to see the story of the great new universally accepted web video codec from his view. I bet developers at Firefox, Opera, and last but not least Google think similarly...

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