Existe uma maneira simples de corrigir o espectador sem recodificar.
The Samsung MX20 does not tag its 16:9 files with the correct DAR. To fix this without a re-encode use Yamb (or mp4box), setting the aspect ratio to 64:45 for PAL videos. As in this test video of a round spray can top shot from above. No other editing was done before uploading to YouTube. Alternatively, install mp4box and use this batch file :
@ECHO OFF
: LOOP
"E: \ Arquivos de programas \ Yamb \ mp4box.exe" -par 1 = 64: 45% 1
SHIFT
SE [% 1] == [] GOTO END
GOTO LOOP
: END
Replace the path to mp4box as appropriate. Then just drag and drop files to be fixed onto the bat file.
Fonte: link