Fix inverted video

[EricDraven]

I downloaded a video from Dailymotion and it is flipped? How do I make it the right way round? See jpg below

[poisondeathray]

You can flip it horizontally

eg.
-vf "hflip" in ffmpeg
or
FlipHorizontal() in avisynth
or
avidemux has a horizontal flip filter

all require re-encoding

[ProWo]

Try exiftool
-orientation#=2

From exiftool documentation

1 = Horizontal (normal)
2 = Mirror horizontal
3 = Rotate 180
4 = Mirror vertical
5 = Mirror horizontal and rotate 270 CW
6 = Rotate 90 CW
7 = Mirror horizontal and rotate 90 CW
8 = Rotate 270 CW

[jimdagys]

The following worked for me using vlc to play the video rotated 180 degrees (requires re-encoding):

ffmpeg -i input.mp4 -vf "transpose=2,transpose=2" output.mp4

does not require re-encoding (rotated 180, 90, -90)

ffmpeg -i input.mp4 -c copy -metadata:s:v:0 rotate=180 output.mp4

ffmpeg -i input.mp4 -c copy -metadata:s:v:0 rotate=90 output.mp4

ffmpeg -i input.mp4 -c copy -metadata:s:v:0 rotate=-90 output.mp4

Also, (requires re-encoding) rotate 90 degrees:

ffmpeg -i input.mp4 -vf "transpose=1" output.mp4

And, (requires re-encoding) rotate minus 90 degrees:

ffmpeg -i input.mp4 -vf "transpose=2" output.mp4

Create mirror image (requires re-encoding)

 ffmpeg -i input.mp4 -qscale 2 -vf "hflip" output.mp4

[locotus]

This may seem silly, but if not a very long video, just face your monitor to a mirror and watch the video through it.

[aedipuss]

This may seem silly, but if not a very long video, just face your monitor to a mirror and watch the video through it.

really? about the dumbest thing ever suggested here and that's saying a lot...

[locotus]

This may seem silly, but if not a very long video, just face your monitor to a mirror and watch the video through it.

really? about the dumbest thing ever suggested here and that's saying a lot...

https://en.wikipedia.org/wiki/Mirror_writing

[johnmeyer]

You don't have to do any of the things suggested. Just tell your player to flip it. For VLC, here are the instructions:

How to Rotate and Flip a Video in VLC Media Player

I just tried it and it works perfectly. It took less than ten seconds to find and set the "flip horizontal" function, and I didn't have to deal with command lines, and didn't have to re-encode anything.

[netmask56]

Just about any video editor can do it if you want to make a permanent copy

[darkknight145]

As others have said, just flip it in your player, if you want to keep it (although I don't know why, it's low res) you can do a screen record from your player (potplayer can do this).
The reason it's probably reversed is the uploader was trying to circumvent YouTube piracy detection.

[jimdagys]

The reason it's probably reversed is the uploader was trying to circumvent YouTube piracy detection.

Interesting comment.
I think the rotating might be useful if someone took a video with their smartphone, and held the phone the wrong way, and wanted to send the video to another person.

[jagabo]

It's not rotated. It's horizontally flipped.