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  1. Member
    Join Date: Nov 2008
    Location: Ireland
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    My purpose in putting iPhone videos into ffmpegx is to reduce their file size, so I can upload them to Facebook
    The problem I'm having though is that "portrait" videos I shot with my iPhone are being flipped onto their side in ffmpegx and coming out as landscape, meaning that everything in the video is now sideways. Is there any way to prevent this from happening? I'm using ffmpegx 0.0.9x r2, don't think I can upgrade as I don't have Lion but Snow Leopard.

    Any idea why this is happening?
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  2. I'm a MEGA Super Moderator Baldrick's Avatar
    Join Date: Aug 2000
    Location: Sweden
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    You try something else like handbrake.

    But if you have to rotate then try mpeg streamclip(it can rotate when you export) or avidemux.
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  3. Member
    Join Date: Nov 2008
    Location: Ireland
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    Why do I have to rotate it though? It plays normally in quicktime, why is ffmpegx turning it on its side?
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  4. Explorer Case's Avatar
    Join Date: Feb 2004
    Location: Middle Earth
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    Originally Posted by hatrickpatrick View Post
    Why do I have to rotate it though? It plays normally in quicktime, why is ffmpegx turning it on its side?
    Most likely, it is QuickTime Player that is rotating the 90 just-in-time, on playback, to intended orientation, by following a rule embedded in the movie file. ffmpegX may possibly ignore this when using a non-QuickTime decoder, as the decoder doesn't understand this transformation instruction.

    You could try encoding with ffmpegX to e.g. "h264 x264" and setting "Decode with Quicktime" in the Options tab. I think this would make the encoder interpret the rotation flag to its intended orientation. Untested, as I do not have such files.
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