ffmpeg rotate video without losing quality

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.

Ffmpeg rotate video without losing quality