Is there a faster way to encode JPG than EncodeToJPG?

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The platform can be WIndows or Linux, it's a server app. The users connect to my app through HTTP. My app need to render things and send it back to users as jpg as quick as possible. For now, I am using just Unity's EncodeToJPG and send it through System.IO.Stream. But i feel there should be some way faster. Also, EncodeToJPG can only run in main thread.

Do you have any suggestion?

Edit: Also i am using ReadPixels after WaitForEndOfFrame. but it can be faster also

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Answer by SunnyChow · Oct 12, 2020 at 04:43 AM

https://assetstore.unity.com/packages/tools/integration/lightbuzz-super-fast-jpeg-123585

i am answering my question. We are using this plugin for now. it's faster than EncodeToJPG () because they integrated libjpeg-turbo to make it faster.

However I believe there should be a way to use GPU for encoding. it should be even faster and may be able to bypass Texture2D.ReadPixels (which is slow). Still trying to improve.

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thelghome · Oct 12, 2020 at 07:39 AM 0

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Thanks for posting your solution, it helps others.

That plugin is a bit out-dated with some critical bug of crashing, and some multi-threading bugs with bad image data. But at least it gave me the keyword of libjpeg-turbo.

I've finally implemented libjpeg-turbo from github for my own project F$$anonymous$$ETP STREA$$anonymous$$ on asset store: http://u3d.as/1uHj

Because I have cross-platform need on HoloLens, and fixed some bugs on my own.

Is there a faster way to encode JPG than EncodeToJPG?

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