video captured from iphone gets rotated when converted to .mp4 using ffmpeg

by

FFMPEG changed the default behavior to auto rotate video sources with rotation metadata in 2015. This was released as v2.7.

If your ffmpeg version is v2.7 or newer, but your rotation metadata isn’t respected, the problem is likely that you are using custom rotation based on metadata. This will cause the same logic to be applied twice, changing or cancelling out the rotation.

In addition to removing your custom rotation (recommended), there’s an option to turn off auto rotation with -noautorotate.

ffmpeg -noautorotate -i input.mp4…

This will also work in some older releases.

More Related Contents:

  1. FFMPEG integration on iphone/ ipad project
  2. How to extract orientation information from videos?
  3. problem compiling ffmpeg for iFrameExtractor
  4. Using FFMPEG library with iPhone SDK for video encoding
  5. FFmpeg on iPhone – Modifying Video Orientation
  6. Is it possible to reference a variable with a string and an int?
  7. How to disable highlighting of the app icon?
  8. Can the UI Automation instrument be run from the command line?
  9. How to share keychain data between iOS applications
  10. Playing system sound without importing your own
  11. How do I change the color of the side Alphabet in an indexed UITableView?
  12. Play alert sound (same as default message ringtone)
  13. How to add custom fonts to an iPhone app?
  14. NSString retainCount is 2147483647 [duplicate]
  15. How to use Shake API in iPhone SDK 3.0?
  16. What is the iPhone 4 user-agent?
  17. Animating a custom property of CALayer subclass
  18. How can we use custom font in an iOS app? [duplicate]
  19. UIImagePickerController in Landscape
  20. iPhone Landscape FAQ and Solutions
  21. Handling touches inside UIWebview
  22. Retrieving a filename for an ALAsset
  23. How to animate the frame of an layer with CABasicAnimation?
  24. How do you get a persons phone number from the address book?
  25. insert object in an NSMutableArray saved with NSUserDefaults
  26. Does UIWebView leak memory?
  27. How to generate unique identifier which should work in all iOS versions?
  28. How to determine the direction of a iPhone shake
  29. Xcode Error Message: “could not inspect application package”
  30. How to add userInfo to a UIAlertView?

Leave a Comment