[Matroska-devel] Opus in Matroksa Cont.

Timothy B. Terriberry tterriberry at mozilla.com
Tue Jun 4 00:15:43 CEST 2013

Frank Galligan wrote:
> The PreSkip is the number of encoded samples prepended to the encoded
> stream by the encoder. Vorbis, AAC, Opus, MP3 all have PreSkip.
> SeekPreRoll is amount of time needed to be decoded by the decoder before
> the output is valid anywhere in the stream. Currently only Opus has a
> SeekPreRoll (I think).

H.264 with Periodic Intra Refresh instead of key frames also requires 
the same thing.

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