ffmpeg:video:resize:maintain_aspect_ratio
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| ffmpeg:video:resize:maintain_aspect_ratio [2025/01/29 22:16] – peter | ffmpeg:video:resize:maintain_aspect_ratio [2025/01/29 22:18] (current) – peter | ||
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| ====== ffmpeg - Video - Resize - Maintain aspect ratio ====== | ====== ffmpeg - Video - Resize - Maintain aspect ratio ====== | ||
| + | |||
| + | <code bash> | ||
| + | -vf scale=1920: | ||
| + | -vf scale=-1: | ||
| + | -vf scale=1920: | ||
| + | -vf scale=-2: | ||
| + | </ | ||
| + | |||
| + | <WRAP info> | ||
| + | **NOTE:** | ||
| + | |||
| + | * **-1** for the width or height will keep it in ratio to the other specified dimension. | ||
| + | * **-2** will keep it in ratio to the other specified dimension, but, to ensure it is divisible by 2 (a requirement for certain encodings such as yuv420p) the width or height will be adjusted if necessary. | ||
| + | |||
| + | </ | ||
| + | |||
| + | ---- | ||
| + | |||
| + | ===== Example ===== | ||
| <code bash> | <code bash> | ||
ffmpeg/video/resize/maintain_aspect_ratio.1738188973.txt.gz · Last modified: 2025/01/29 22:16 by peter