Then all you need to do is to set the horizontal_flip by: v4l2-ctl -set-ctrl horizontal_flip=1 Horizontal_flip (bool) : default=0 value=0Īnd if you are lucky it supports horizontal_flip and vertical_flip. Gain (int) : min=0 max=1023 step=1 default=0 value=32 flags=inactive, volatile Gain_automatic (bool) : default=1 value=1 flags=update Red_balance (int) : min=0 max=4095 step=1 default=0 value=128 flags=inactive, sliderīlue_balance (int) : min=0 max=4095 step=1 default=0 value=128 flags=inactive, sliderĮxposure (int) : min=0 max=65535 step=1 default=0 value=885 flags=inactive, volatile White_balance_automatic (bool) : default=1 value=1 flags=update Hue (int) : min=0 max=359 step=1 default=0 value=0 flags=slider Saturation (int) : min=0 max=255 step=1 default=64 value=64 flags=slider If your camera driver supports the v4l2 camera controls, you should get something like this (the list below depends on the controls that your camera driver supports): contrast (int) : min=0 max=255 step=1 default=0 value=0 flags=slider Where have the rotate options gone?Īn additional solution with a different approach from the last mentioned solutions, is to check if your camera driver supports the v4l2 camera controls (which is very common). 270 degrees would be an excellent option to have as well.
I need to the ability to rotate videos 90 degrees at the very least. Having the options for vflip and hflip are great and all, but they just won't get me where I need to go. Nullsink Do absolutely nothing with the input video. Nullsrc Null video source, never return images. Slicify Pass the images of input video on to next video filter as multiīuffer Buffer video frames, and make them accessible to the filterchaiĬolor Provide an uniformly colored input, syntax is: [color[:size[:ra Scale Scale the input video to width:height size and/or convert the i Pixdesctest Test pixel format definitions. Pad Pad input image to width:height] (default x and y: Null Pass the source unchanged to the output. Noformat Force libavfilter not to use any of the specified pixel formats Running ffmpeg -filters shows this: Filters:Īnull Pass the source unchanged to the output.Ĭrop Crop the input video to x:y:width:height.įifo Buffer input images and send them when they are requested.įormat Convert the input video to one of the specified pixel formats. Second, I get this error: No such filter: 'rotate'Īs far as I know, I have an all-options-on build of FFmpeg.
First, -vfilters doesn't exist anymore, it's now just -vf. According to what I see, it should look like this: ffmpeg -vfilters "rotate=90" -i input.mp4 output.mp4 I know how to determine the current degrees of rotation using MediaInfo (excellent library, btw) but I'm stuck on FFmpeg now.įrom what I've read, what you need to use is a vfilter option. I am working with iPhone videos taken in portrait mode.
I have been trying to figure out how to rotate videos with FFmpeg.
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