[FFmpeg-devel] [PATCH] movenc: support GPMF track (gpmd) remuxing

[Clément Bœsch]

On Fri, Jul 21, 2017 at 02:21:23PM +0100, Derek Buitenhuis wrote:
> On 7/21/2017 9:30 AM, Clément Bœsch wrote:
> > +    avio_wb16(pb, 1); /* Data-reference index */
> 
> Why is this whole atom hardcoded (i.e. with is '1').
> 

It's basically the same layout for every stsd sample description. Check
the other tags that extend that layout, the also have that data ref idx to
1. I think I copied from the rtp code, but it's the same for the other as
well. This gpmd atom just extends the stsd sample description with a
reserved 32-bit value.

-- 
Clément B.
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