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

[Richard Bartczak]

Am 23.05.25 um 01:49 schrieb 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.
>
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Yes of course :

... by me : There is mothing to crop.

But I agree the "Head : Remove black border ..." is not the best 
formulation.

To make it complete, again :

Only the syntax must be changed :  -vf 
scale=720x576,setsar=64/45,setdar=16/9 then I get 720x576 [SAR 64:45 DAR 
16:9]

But the video quality is very bad. I did try it with -crf 0, but this 
parameter will not be used by ffmpeg in this context.

Is there a way not use somethung like that : -vcodec libx265 -crf 16 to 
improve the video quality ?

Best regards

Richard