[vlc-devel] [vlc-commits] demux: libmp4: add Opus atoms

Francois Cartegnie fcvlcdev at free.fr
Mon Jan 19 12:32:45 CET 2015

Le 19/01/2015 09:53, Timothy B. Terriberry a écrit :
> Francois Cartegnie wrote:
>> handling for now due to private data endianness change and 2 extra bytes
>> before OpusHead (which I can't find explanation. Encoder bug ?).
> If there's no encoder, how can this be an encoder bug?

After investigation that's xiph metadata packing used in codec private
data :/

>> But since headers are sent with first samples, you'll find that opus
>> already works when enabled in muxer.
> I'm not sure what you mean by this. Can you explain?

That currently you can mux opus in MP4 and have playback working without
any dOps atom.


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