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kodawah/notes on opus in mp4 in ffmpeg

Created September 26, 2016 21:11
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notes on opus in mp4 in ffmpeg
[6:04pm] Paranoialmaniac: https://github.com/kinetiknz/FFmpeg/commit/6f874bd6347c8938b4d0f2b483ed037f7e9e291a#diff-44e5be1f9a8e0df35dd607e74773ce6eR1654
[6:04pm] Paranoialmaniac: opus can have variable pre-roll size
[6:04pm] Paranoialmaniac: since opus can vary its frame-size by frame by frame
[6:10pm] Paranoialmaniac: he misunderstands units of roll_distance
[6:13pm] Paranoialmaniac: roll_distance is in units of Opus samples not PCM samples
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