[FFmpeg-devel] [PATCH] movenc/isom: update vpcC box to the latest draft specification

Hendrik Leppkes h.leppkes at gmail.com
Sat Apr 22 00:34:54 EEST 2017


On Fri, Apr 21, 2017 at 11:25 PM, KongQun Yang
<kqyang-at-google.com at ffmpeg.org> wrote:
> Hi Hendrik,
>
> Thanks for working on it. Version needs to be updated as well:
> https://github.com/FFmpeg/FFmpeg/blob/b905ba5bc18c89c7fccd8621795755644442ef19/libavformat/movenc.c#L1115.
> Suggest moving it into ff_isom_write_vpcc function too.
>

The actual value of the version field doesn't seem to be mentioned in
the specification anywhere.
https://github.com/webmproject/vp9-dash/blob/master/VPCodecISOMediaFileFormatBinding.md

The only version info I can see is the v1.0 at the top, but thats
hardly a direct correlation to single integer version field in the mp4
box.

Or did I miss it somewhere?

- Hendrik


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