[Libav-user] Is video orientation supported in3gp/mp4 in FFmpeg/libav?

[Yisheng Zhao]

Hi Jan,

Thanks so much for the quick reply~

Yes, the video orientation means rotation to handle recording cellphone
video's case.
And could you please provide me with some hint about what to write in the
metadata box? I searched a lot but I haven't seen anything about storing
rotation information in mp4.

Thanks so much again~:P

Best,
Yisheng

On Mon, Mar 28, 2016 at 4:36 PM, Jan Drabner <jan at jdrabner.eu> wrote:

>
> Am 3/28/2016 um 10:34 PM schrieb Yisheng Zhao:
>
> Hi Genius,
>
> I have a question if video orientation is supported in3gp/mp4 in
> FFmpeg/libav?
>
> In
> http://www.etsi.org/deliver/etsi_ts/126200_126299/126244/12.03.00_60/ts_126244v120300p.pdf,
> a "3gvo" box is used to specify the video orientation~
>
> Thanks so much~
>
> Best,
> Yisheng
>
>
> _______________________________________________
> Libav-user mailing listLibav-user at ffmpeg.orghttp://ffmpeg.org/mailman/listinfo/libav-user
>
>
> Hello,
>
> if by video orientation you mean video rotation, then yes. I did that with
> mp4/HLS and other formats.
> It is (usually) done using the "rotate" metadata. Not sure if 3gp supports
> that as well.
>
> Regards,
> Jan Drabner
>
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>
>
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