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I've recorded a video on my smartphone (android-based).
I've been recording it in a landscape mode.
Then when I uploaded it on youtube - it somehow recognized the original orientation and made it to portrait mode.
I understand that I may use youtube editor feature and rotate it there - but I don't want to do that for 2 reasons:
- It is another lossy conversion
- The video in a wrong orientation is of a lower resolution - 720p, whereas the original video is 1080p.
So what I would like to know from community either:
- if it's possible to reset an orientation flag in the video (it was compressed using h264 in mkv with ffmpeg)
- or how to disable auto-rotating on youtube
?
PS: yep, I tried to google on both questions
zerkms
Posted 2014-07-06T05:32:36.570
Reputation: 946
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Check my answer to the above linked question. You can reset the orientation flag with
– slhck – 2014-07-06T09:39:54.763-metadata:s:v:0 rotate=0. (Edit: found a better duplicate, but this is also relevant: http://superuser.com/questions/564233/iphone-recorded-videos-getting-rotated-on-windows-systems)@slhck: amazing. Upvoted there. But one more question: how would I see the current orientation of a given video? None of "meta" or "rota" or "s:" or ":v" substrings are in the video details. – zerkms – 2014-07-06T09:44:23.700
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With
– slhck – 2014-07-06T09:48:35.357ffprobefor example, usingffprobe -select_streams v -show_streams input.mp4, it would showTAG:rotate=90. Ormediainfo, which would showRotation. The MediaInfo GUI should show it as well, depending on how you like to work with data. Both solutions are cross-platform anyway.@slhck: yep, mediainfo is the saver, thank you – zerkms – 2014-07-06T10:44:37.887