On Mon, 29 Apr 2013 12:10:50 +0200, Jindřich Makovička <[email protected]> 
wrote:
> Hi,
> 
> this patch adds original and copyright flags from MPEG audio headers
> to AVFormatContext, so they can be displayed by avprobe.
> 
> Could this feature be included in upstream? We encountered MPEG-PS
> sources that (ab)use the "original" flag to distinguish between
> original and dubbed audio, so it would come handy.
> 

I'm not against exposing this information in principle, but I don't like adding
a format-specific field to AVCodecContext. History shows that it doesn't lead to
anything good.

I see two possible ways to expose this.
One is through decoder-private AVOptions, which contrary to the name can also be
used to retrieve values from opaque structs.
Another is through newly added frame side data/metadata.

-- 
Anton Khirnov
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