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Low Video Quality #49

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GKid94 opened this issue Sep 18, 2018 · 12 comments
Open

Low Video Quality #49

GKid94 opened this issue Sep 18, 2018 · 12 comments

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@GKid94
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GKid94 commented Sep 18, 2018

Can you improve the video quality of the codec because when I enable the extension the YouTube videos get a little blurry and when I disable the extension and play YouTube videos with the VP9 codec the videos are sharp

@erkserkserks
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Can you provide a screen shot of the issue and the link of the video?

@GKid94
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GKid94 commented Sep 21, 2018

You can clearly see that the video quality is worse when the extension is enabled

54234123

@erkserkserks
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Could you provide a link to that video? I want to see if I can reproduce it on my system.

The blurriness could be one of two things:

  1. The h.264 version of the video has less detail than the VP9 version (this can't be fixed).
  2. There is something in the video processing pipeline on your machine that only affects h.264 video (can be fixed).

@GKid94
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GKid94 commented Sep 22, 2018

Link to the video: https://youtu.be/X497wZAxwcc

@erkserkserks
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h.264 version:
h264

vp9 version:
vp9

There is less detail in the h.264 version, but I think that is unavoidable. vp9 gives you better video quality than h.264 at a given bitrate.

In your comparison, are you comparing 1080p vs 1080p? The vp9 version has a 1440p (and 4k version) which would give you sharper images.

@GKid94
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GKid94 commented Sep 22, 2018

I played it at 720p

@GKid94
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GKid94 commented Sep 22, 2018

But the VP9 is larger and heavier on resources, it takes longer to load VP9 videos and most of the GPU's don't support VP9 decoding so the YouTube videos use the CPU instead of the GPU

@GKid94
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GKid94 commented Sep 22, 2018

And you can see that the VP9 codec has a color correction, maybe you could add that in the extension

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@GKid94
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GKid94 commented Oct 14, 2018

?

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@ghost
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ghost commented Oct 15, 2018

?

@Kronodile
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Any update on this?

@GKid94
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GKid94 commented Jun 3, 2021

Any update on this?

I don't think they can do much because it's up to YouTube, maybe just to update the H264 codec

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