ffmpeg change aspect ratio

Use -vf … But, later I got video which aspect is not 4:3, but 16:9 and so on. important, pixel aspect ratio. Although most of these answers are great, I was looking for a command that could resize to a target dimension (width or height) while maintaining a... Found the internet! Ich versuche, eine Video-AR mit ffmpeg wie folgt zu ändern: ffmpeg -i in.mp4 -aspect 16:9 -c copy out.mp4 ...und während dies im Grunde funk... Super User Kontakte. ffmpegオプション: 8K: 7680: 4320-s 7680x4320: 4K: 3840: 2160-s 3840x2160: WQHD: 2560: 1440-s 2560x1440: FHD: 1920: 1080-s 1920x1080: WXGA++: 1600: 900-s 1600x900: HD: 1280: 720-s 1280x720: 1024: 576-s 1024x576: 768: 432-s 768x432: 640: 360-s 640x360: 480: 270-s 480x270: 320: 180-s 320x180: 160: 90-s 160x90 ffmpeg -i input.mp4 -vf "scale=480:320" output_320.mp4. ffmpeg... Pros and Cons of the method: Pros: In some cases, FFmpeg will set the Sample Aspect Ratio to compensate for the ratio change. You have to manually set the SAR value to 1:1 to make the players display it in the way you want. For example: ffmpeg -i input.mp4 -vf scale=320:240,setsar=1:1 output.mp4 1920 / 480 = 4 Your video width will therefore scale down to 1080 / 4 = 270 pixels Step 5. Actually, -2 is a better choice since the computed value should even. Where … For example: ffmpeg -i input.mp4 -vf scale=320:240,setsar=1:1 output.mp4 When going from BGR (not RGB) to yuv420p the conversion is broken (off-by-one). # For video input $ ffmpeg -i input.mp4 -vf scale=640:480 output.mp4 # For image $ ffmpeg -i input.jpeg -vf scale=640:480 output. FFmpeg - Change resolution of the video with aspect ratio | 易学教程 Maintaining aspect ratio with FFmpeg - Stack Overflow ffmpeg cropped video changes aspect ratio - Stack Exchange Aspect ratio change of 16:9 and 1920x1080 resolution file : ffmpeg For example: For instance, in the above situation, if you wish to change the aspect ratio from 16:9 to 4:3 following will be the command. FFmpeg/avconv can do the scaling/padding with video filters in a single step, transcoding only once. FFmpeg uses a scale filter in resizing. Press question mark to learn the rest of the keyboard shortcuts. FFmpeg FAQ

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