[FFmpeg-devel] [PATCh] aac parser: Don't write channels, sample rate, and frame size each frame

Alex Converse alex.converse
Tue Mar 2 02:31:42 CET 2010


On Mon, Mar 1, 2010 at 8:23 PM, Michael Niedermayer <michaelni at gmx.at>wrote:

> On Mon, Mar 01, 2010 at 08:16:48PM -0500, Alex Converse wrote:
> > They are part of the invariant header and shouldn't change each frame
> > anyway. This prevents them from overwriting information provided by
> > backwards compatible extensions.
>
> what you attached does not match the description
>
> besides "shouldn't change" gives me a strange feeling ...
> if we can support it changing it would be a nice "wish/feature request"
>

According to the AAC specification they changing these vales from frame to
frame is forbidden. They are part of the fixed header.


>
> [...]
> --
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>
> Everything should be made as simple as possible, but not simpler.
> -- Albert Einstein
>
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