Screenshots are scaled for non-square pixel sources

Important Information

Screenshots are scaled for non-square pixel sources but should not, as is indicated in the documentation: A screenshot will usually contain the unscaled video contents at the end of the video filter chain and subtitles.

Information:

• mpv version : 0.35.1
• Platform and Version : macos 12.6.6
• Source of the mpv binary : homebrew cask

Reproduction steps

1. Open a video with non-square pixels (from command line or bundle app).
2. Take a screenshot (by pressing "s").
3. Compare the real pixel resolution of the video with the one of the image, they should be identical but they are not.

Expected behavior

The screenshot should have the same resolution as the raw resolution of the video, not the same as the display resolution.

Actual behavior

The screenshot have the same resolution as the displayed resolution of the video, not the same as the raw pixel resolution.

Notes

For example, if I open a video file with non-square pixels with a resolution of 720x486, displayed at 720x540 (4:3), the screenshot have a resolution of 720x540 instead of 720x486. The problem was not present in previous versions but unfortunately I dont know when the change appears. Currently, as a workaround, I'm using video-aspect-override=no in the conf.

Log file

output.txt

Reproduce with a 720x486 video using non-square pixels, press "s", and compare the screenshot dimensions with the raw video dimensions. Use the documented behavior and the video-aspect-override=no workaround as references; done means screenshots retain the raw resolution rather than the displayed 720x540 resolution.