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 <[email protected]> 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 > [email protected]http://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 > > _______________________________________________ > Libav-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/libav-user > >
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