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ffmpeg - scale within limits
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| TARGET_WIDTH="1920" | |
| TARGET_HEIGHT="1080" | |
| TARGET_DAR="16/9" | |
| ffmpeg -i "input.mov" -vf \ | |
| "scale=iw*sar:ih, | |
| scale= | |
| 'w=if(lt(dar, $TARGET_DAR), trunc(oh*a/2)*2, min($TARGET_WIDTH,ceil(iw/2)*2)): | |
| h=if(gte(dar, $TARGET_DAR), trunc(ow/a/2)*2, min($TARGET_HEIGHT,ceil(ih/2)*2))', | |
| setsar=1" \ | |
| output.mp4 |
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