Answers.Body: <p>You could use <a href="http://windows.microsoft.com/en-GB/windows7/products/features/movie-maker" rel="nofollow">Windows Live Movie Maker</a>, which is free with Windows Live Essentials.  <a href="http://www.youtube.com/watch?v=HlqqlS8CDv4" rel="nofollow">Here</a> is a tutorial on how to do it.</p>
  
  <p>It looks like Windows Movie Maker doesn't have native support for the 3GP format, but you should be able to download a CODEC for it.</p>
  
  <p>For Mac users, <a href="http://www.apple.com/ilife/imovie/" rel="nofollow">iMovie</a> is the equivalent.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2011-10-31T14:15:35.973Z
Answers.LastActivityDate: 2011-10-31T14:15:35.973Z
Answers.UserDisplayName: JayP
Answers.Body: <p>The following will flip a video 90 degrees clockwise:</p>
  
  <pre><code>ffmpeg -i input.3gp -filter:v 'transpose=1' -c:a copy \
  -c:v libx264 -crf 22 -preset veryfast output.mp4
  </code></pre>
  
  <p>To flip it 90 degrees anti-clockwise, use 'transpose=2'. See <a href="https://ffmpeg.org/ffmpeg-filters.html#transpose" rel="nofollow">the documentation</a> for more information. Note that this will require a fairly up-to-date version of ffmpeg.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-01-16T00:16:30.667Z
Answers.LastActivityDate: 2013-01-16T00:16:30.667Z
Answers.UserDisplayName: evilsoup
Body: <p>My camera phone takes video in 3gp format. I've inadvertently taken a video sideways and want to turn it 90 degrees for upload to services such as YouTube and Facebook. </p>
  
  <p>What software package can I use on Windows to do this, or is there another option?  <strike>I've looked at the YouTube upload interface and it doesn't have an option to turn the video.</strike></p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2011-10-27T21:49:59.813Z
Comments.Text: After a bit of research I'm considering ffmpeg transpose http://ffmpeg.org/ffmpeg.html#transpose but have to sit down with it to learn a bit more.
Comments.UserDisplayName: John K
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2011-10-27T22:41:55.413Z
Comments.Text: YouTube note: In fact, at this point in time, YouTube does allow a video to be turned on its side after it has been uploaded. The video is then reprocessed.
Comments.UserDisplayName: John K
Tags: <video-editor>
Title: Windows software to turn a 3gp video on its side before upload?
UserDisplayName: John K
ThreadText: # Windows software to turn a 3gp video on its side before upload?
  
  (Asked by: username_0 on 2011-10-27)
  
  My camera phone takes video in 3gp format. I've inadvertently taken a video sideways and want to turn it 90 degrees for upload to services such as YouTube and Facebook.
  
  What software package can I use on Windows to do this, or is there another option? I've looked at the YouTube upload interface and it doesn't have an option to turn the video.
  
  **Tags:** video-editor
  
  > **Comments:**
  > **username_0**: After a bit of research I'm considering ffmpeg transpose http://ffmpeg.org/ffmpeg.html#transpose but have to sit down with it to learn a bit more.  
  > **username_0**: YouTube note: In fact, at this point in time, YouTube does allow a video to be turned on its side after it has been uploaded. The video is then reprocessed.  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_1 on 2011-10-31. Score: 2
  
  You could use [Windows Live Movie Maker](http://windows.microsoft.com/en-GB/windows7/products/features/movie-maker), which is free with Windows Live Essentials. [Here](http://www.youtube.com/watch?v=HlqqlS8CDv4) is a tutorial on how to do it.
  
  It looks like Windows Movie Maker doesn't have native support for the 3GP format, but you should be able to download a CODEC for it.
  
  For Mac users, [iMovie](http://www.apple.com/ilife/imovie/) is the equivalent.
  
  
  ---
  
  ### Answer by username_2 on 2013-01-16. Score: 1
  
  The following will flip a video 90 degrees clockwise:
  
  ```
  ffmpeg -i input.3gp -filter:v 'transpose=1' -c:a copy \
  -c:v libx264 -crf 22 -preset veryfast output.mp4
  
  ```
  
  To flip it 90 degrees anti-clockwise, use 'transpose=2'. See [the documentation](https://ffmpeg.org/ffmpeg-filters.html#transpose) for more information. Note that this will require a fairly up-to-date version of ffmpeg.
  
  
  ---
  
  