Upscaled/zoomed-in video is blocky
Categories
(Core :: Graphics: WebRender, defect)
Tracking
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Tracking | Status | |
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firefox81 | --- | affected |
People
(Reporter: madgod112, Unassigned)
Details
Attachments
(1 file)
1.81 MB,
application/x-zip-compressed
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Details |
Steps to reproduce
- Open any video e.g. https://test-videos.co.uk/vids/bigbuckbunny/mp4/h264/720/Big_Buck_Bunny_720_10s_10MB.mp4
- Zoom in by some factor (here: 180%).
Expected result
Upscaled video is smooth (see bbb-stable.jpg in attached archive).
Actual result
Upscaled video is blocky/jagged (see bbb-nightly.jpg in attached archive).
Notes
Please compare the attached screenshots. After a recent (3-4 days ago?) update, Nightly started suffering from ugly upscaling artifacts on videos that are upscaled due to zoom or just regular stretching (e.g. 720p Youtube video on a 1440p display). To my untrained eye it seems that bilinear filtering is gone, being replaced with visually jarring nearest-neighbour filtering.
The comparison is between stable 79.0 and nightly 81.0a1 (2020-08-06).
Comment 1•4 years ago
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hi, thank you for the report - it looks very similar to bug 1657428 where devs are already working on a patch, so i assume it's the same underlying issue.
thanks, I couldn't get the keywords right to find the duplicate it seems
Description
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