FFmpeg - Scale and Letterbox: Difference between revisions
From PiRho Knowledgebase
Jump to navigationJump to search
Created page with "<pre> ffmpeg -i <input.file> -c:v libx264 -filter:v "scale=(iw*sar)*min(640/(iw*sar)\,480/ih):ih*min(640/(iw*sar)\,480/ih), pad=640:480:(640-iw*min(640/iw\,480/ih))/2:(480-ih*min(640/iw\,480/ih))/2" -f mp4 <output.file> </pre> Reference: FFMPEG - Encoding Optimal Videos for Streaming#Change_Resolution_and_add_Letterbox" |
mNo edit summary |
||
| Line 2: | Line 2: | ||
ffmpeg -i <input.file> -c:v libx264 -filter:v "scale=(iw*sar)*min(640/(iw*sar)\,480/ih):ih*min(640/(iw*sar)\,480/ih), pad=640:480:(640-iw*min(640/iw\,480/ih))/2:(480-ih*min(640/iw\,480/ih))/2" -f mp4 <output.file> | ffmpeg -i <input.file> -c:v libx264 -filter:v "scale=(iw*sar)*min(640/(iw*sar)\,480/ih):ih*min(640/(iw*sar)\,480/ih), pad=640:480:(640-iw*min(640/iw\,480/ih))/2:(480-ih*min(640/iw\,480/ih))/2" -f mp4 <output.file> | ||
</pre> | </pre> | ||
Reference: [[FFMPEG - Encoding Optimal Videos for Streaming#Change_Resolution_and_add_Letterbox]] | Reference: [[FFMPEG - Encoding Optimal Videos for Streaming#Change_Resolution_and_add_Letterbox]]<br/> | ||
Reference: [[https://stackoverflow.com/questions/61703587/proper-way-to-letterbox-with-ffmpeg stackoverflow: Proper way to letterbox with ffmpeg]] | |||
Revision as of 10:51, 6 March 2025
ffmpeg -i <input.file> -c:v libx264 -filter:v "scale=(iw*sar)*min(640/(iw*sar)\,480/ih):ih*min(640/(iw*sar)\,480/ih), pad=640:480:(640-iw*min(640/iw\,480/ih))/2:(480-ih*min(640/iw\,480/ih))/2" -f mp4 <output.file>
Reference: FFMPEG - Encoding Optimal Videos for Streaming#Change_Resolution_and_add_Letterbox
Reference: [stackoverflow: Proper way to letterbox with ffmpeg]
