To change a video file to be 1080p in FFmpeg: ffmpeg -i input.mp4 -vf scale=1920x1080:flags=lanczos output_1080p.mp4. Here are some FFmpeg commands to help you out: Upscale with FFmpeg. Making a video smaller (downscaling) or bigger (upscaling) with FFmpeg is actually very easy. Ffmpeg compress imageĬompress JPEG images and photos for displaying on web pages, sharing on social networks or sending by email.
FFMPEG SCALE 1080P MOVIE
So, we now can crop the movie clip to make a new cropped clip: ffmpeg -i TheGoodTheBadAndTheUgly.mp4 -vf crop=640:272:0:46 cropped_TheGoodTheBadAndTheUgly.mp4 The crop filter takes four arguments: crop=out_width:out_height:x:y where: out_width:output_height - the cropped output width and height of the video. The output width and height can also be used with out_w and out_h. This expression is evaluated only once during the filter configuration.įfmpeg -i in.mp4 -filter:v "crop=240:120:240:120" -c:a copy out.mp4 You can refer to the input image size with in_w and in_h as shown in this first example. The command syntax looks like this: ffmpeg -i before.mp4 -vf "crop=w:h:x:y" after.mp4 The crop filter accepts the following options: w Width of the output video (out_w). In this chapter, we'll crop the input video to given dimensions.
FFMPEG SCALE 1080P MAC
Created in 2000, it is a powerful command-line tool that runs on Linux, Windows and Mac operating systems. He continues to contribute to FFmpeg, and has fixed some bugs in libswscale after GSoC has ended.įFmpeg is a multiplatform, open-source library to record, convert and stream video and audio files. įfmpeg -i input -vf scale=512:384:gamma=1 output Pedro has done impressive work considering the short time available, and he is a FFmpeg committer now.
For an excellent source on resampling methods go here. This scaling is not needed, your preference.įfmpeg -i input -vf "scale=w=1280:h=720:force_original_aspect_ratio=2,crop=1280:720" output Use your player If you don't want to bother with re-encoding, then any player worth using should allow you to do this upon playback.įfmpeg -i input.mp4 -vf scale=1920x1080:flags=lanczos output_1080p.mp4 This uses FFmpeg scaling with Lanczos resampling. This scaling is not needed, your preference. Scale=960:720 Scaling the video slightly to bring it back to your original 720p, the 960 is to keep it at a nice 4x3 ratio. Encoding and decoding work must be explicitly assigned to a GPU when using multiple GPUs in one system. 2 Scaler Options The video scaler supports the following named options.įinally, the image is scaled using scale_npp and encoded on the GPU. In particular it allows one to perform image rescaling and pixel format conversion. The FFmpeg rescaler provides a high-level interface to the libswscale library image conversion utilities.
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