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
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