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" |
m Knowledgebaseadmin moved page FFmpeg - Scale and Latterbox to FFmpeg - Scale and Letterbox |
||
| (4 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
[[Category:FFmpeg]] | |||
[[Category:Video Scaling]] | |||
<pre> | <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> | 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]] | |||
Latest revision as of 12:41, 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]
