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Old 17-12-2020, 07:41
Alienman2021 Alienman2021 is offline
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Question How to compreess MP4/AVI Lossless?

Greeting ladies and gentlemen first of all i'm very newbie here and i want to ask how to compreess MP4/AVI Lossless? i used tool that name handbrake but it loss some of quality and i just want to compress my video 100% (or 1000% if possible ) with 0% quality loss.
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Old 17-12-2020, 08:37
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Quote:
Originally Posted by Alienman2021 View Post
i want to ask how to compreess MP4/AVI Lossless? i used tool that name handbrake but it loss some of quality and i just want to compress my video 100%.
It doesn't matter what tool you use, it's the codec. You need a "lossless video codec" to compress video without any quality degradation but be prepared: they compress a lot worse than lossy codecs. I would recommend H.264 or H.265 lossless.

A lossy codec removes "redundant" data whose loss the human eye and ear can't see or hear anyway. That's why they can compress much better but if you configure them to be "too lossy", you'll see/hear the difference - so called "compression artifact" - and recompression/reencoding results in losses again and again. The actual compression method of a lossy and a lossless codec is the same.
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Old 17-12-2020, 11:27
Alienman2021 Alienman2021 is offline
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Thank you @Joe Forster/STA for your reply i know the difference between them but you said that lossless worse than lossy!! as long as i know that lossy lose some of quality and lossless just compress your video without quality loss but with me lossless is still loss a litlle bit of quality is there any perfect method for only compress my video without touch any quality?
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Old 17-12-2020, 13:14
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As I wrote, a lossless video codec will not cause quality degradation: the compressed video, when uncompressed and played, will be pixel by pixel the same as the original video - that's why it's lossless.
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