[FFmpeg-user] Remove black border on both up/down and left/bottom

[Mark Filipak]

On 20/05/2025 08.16, Richard Bartczak via ffmpeg-user wrote:
> Hello,
> 
> Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, bt470bg, top 
> first), *720x576 [SAR 16:15 DAR 4:3]*, 25 fps, 25 tbr, 90k tbn

There are no black borders in the pictures. Your player is applying SAR to get 768x576 and then 
adding the black borders for your 16x9 display.