add support for PASP box in mov/mp4

[tonybart1337]

some videos are not displayed correctly because mediabunny doesn't parse pasp box

mp4boxjs ref

[Vanilagy]

Can you send a video that is displayed incorrectly?

[tonybart1337]

ffmpeg -f lavfi -i testsrc2=duration=5:size=640x360:rate=30 \
  -c:v libx264 \
  -pix_fmt yuv420p \
  -vf "setsar=2/1" \
  -t 5 \
  sar_2x1.mp4

sar_2x1.zip

[tonybart1337]

@Vanilagy would you consider a PR for this feature?

I'm migrating our production video tooling to mediabunny and it's currently a blocker for us

[Vanilagy]

Support will ship with the next version! InputVideoTrack and VideoSample now expose pixelAspectRatio, squarePixelWidth and squarePixelHeight, and the samples are drawn correctly according to their PAR.

[tonybart1337]

Amazing! Thank you for the update!

[Vanilagy]

Released in v1.35.0! Please try it out and confirm that it works for you guys.

[tonybart1337]

@Vanilagy it works great, including the case with non squared frames and rotation

[Vanilagy]

Lovely!