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Video codecs can be extremely good at encoding static content, with the right tuning, and trying to capture the text of any arbitrary app on the screen would be
by brucethemoose2 4y ago
Video codecs can be extremely good at encoding static content, with the right tuning, and trying to capture the text of any arbitrary app on the screen would be quite a task.
One of the bigger issues for text is 4:2:0 subsampling... not really sure how to work around that, as higher levels of subsampling are extremely expensive.
- dilyevsky 4y agoIs it really chroma? I always thought poor text rendering was an artifact of dct+quantization
- brucethemoose2 4y agoDepends. The chroma subsampling still hurts text even at really high bitrates or in static scenes, and you can see a big difference in 4:4:4 or RGB videos.