Sar dar par vlc/mpv

buddha9 · 13th January 2026, 11:05

Hi,
I've a MKV with this video stream inside:

Code:

Stream #0:0: Video: h264 (High), yuv420p(tv, smpte170m/bt470bg/bt709, progressive), 680x584 [SAR 49348:34425 DAR 676:405], SAR 487:340 DAR 487:292, 25 fps, 25 tbr, 1k tbn (default)

with VLC/MPV If I:

take a screenshot I obtain images with: 974w x 584h

play the video I see that the frame is 974w x 584h

Why the screenshots and play aren't 680x584?
Where do these numbers come from: 974w x 584h?
Thanks!

Avclover · 13th January 2026, 11:41

sample aspect ratio (SAR) isn't 1:1, therefore SAR(=487/340)*680=974

13th January 2026, 11:05	#1 \| Link
buddha9 Registered User Join Date: Nov 2023 Posts: 34	Sar dar par vlc/mpv Hi, I've a MKV with this video stream inside: Code: Stream #0:0: Video: h264 (High), yuv420p(tv, smpte170m/bt470bg/bt709, progressive), 680x584 [SAR 49348:34425 DAR 676:405], SAR 487:340 DAR 487:292, 25 fps, 25 tbr, 1k tbn (default) with VLC/MPV If I: take a screenshot I obtain images with: 974w x 584h play the video I see that the frame is 974w x 584h Why the screenshots and play aren't 680x584? Where do these numbers come from: 974w x 584h? Thanks! __________________ AviSynth+ 3.7.3 Last edited by buddha9; 13th January 2026 at 11:08.

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13th January 2026, 11:41	#2 \| Link
Avclover Registered User Join Date: Sep 2023 Posts: 9	sample aspect ratio (SAR) isn't 1:1, therefore SAR(=487/340)*680=974