[FFmpeg-user] multiple bitrates with different logos

Carl Zwanzig cpz at tuunq.com
Fri May 8 19:26:57 EEST 2020

On 5/7/2020 6:56 PM, Edward Park wrote:
> Are the logo png files transparent and same size as the video frame size?
> If so you can use the overlay filter with the logo file as second input.
And if not, it's easy enough to resize/reposition and add an alpha channel 
if missing. That may be way faster than messing about with command line options.

IMHO unless there's a very specific reason for doing 4-in-1, you're better 
off using separate invocations of ffmpeg for each output file; the KISS 
principle (keep it simple) applies here.

Also, you may want to add the 'faststart' MP4 flag, too; that was discussed 
recently on this list (and it's in the docs a 
https://ffmpeg.org/ffmpeg-formats.html#toc-mov_002c-mp4_002c-ismv). Or use 
the qt-faststart tool after creating the output files. Try without first. 
(This becomes a separate discussion.)


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