2018年10月8日 · --Then important part comes - choosing buffers , --vbv-bufsize 50000 --vbv-maxrate 50000 , so you limit max bitrates. How exactly it is to the point with x265 not sure, bitrate should not have go above 60000 for example if set that way. Realistically you always have to limit bitrate. So in a sane manner you do it yourself. What bitrate?

2021年3月6日 · I mean the quality loss is always present on any encode, and im fine with it up to the point for example if there is around 10-15% quality loss mainly something like missing grain due to x265 removing it, but visually to naked eye looking pretty much same, by looking at video (not comparing frame to frame) and file size being around 10 times ...

2023年10月19日 · I've experimented with x265 on medium preset and 10bit and that brings it down to around 2.2gb. I can't see any obvious quality loss and the encode takes roughly the same amount of time. However I'm conscious that the TV I have currently is a cheap 49" one, and my plan is to get a bigger OLED in the next 12 months or so.

2023年1月2日 · In a nutshell, this is what the x264 developers did and the x265 people have taken it even further, to create these monstrosity of code bases, with numerous "optimizations", that just over-analyzes the video and jumps through hoops to redistribute the bit rate.

2014年9月28日 · There is no optimal. Depends on the content and situation. e.g high action content like sports, action movie may benefit more with a larger range than say a slow moving drama with little motion, static scenes.

2018年8月26日 · I'm a novice at video encoding. Yet, I've found a great x265 downsizing encoding routine for my large television captures. I can reduce the file size by 40% or more. But I notice the resulting x265 encode looks noticeably smooth or blurred - with perhaps accentuated edges. In my current situation, I'm actually satisfied with the result.

2016年6月18日 · The advantage of x265 is that it is a quite complex video codec which is able to search thoroughly for similarities in the video which can be used to encode efficiently. This requires a wide scope, comparing several frames in the past and future around the currently encoded frame.

2021年2月6日 · I've been encoding my UHD Bluray collection using ffmpeg/x265 for about 2 years now, and until a few weeks ago, I never included these parameters in my HDR encodes. I was aware that they were enabled from the --uhd-bd parameter, but I assumed they weren't required as I am encoding for personal streaming, and not UHD BD authoring (and I also don ...

2020年9月12日 · I linked to the original, everyone is free to download any and all the ProRes or RAW samples. As for the rest, professional video is never used as is straight from the camera, prior to the editing it's color graded, debayered, denoised, sharpened, etc, as pros usually shoot "flat" in order to avoid "baking in" information in the source so as to allow maximum creative …

2016年10月8日 · I've been using x265 since 1.3-1.4 and don't think I have ever used --frames. Recently I started using the comparison function in Staxrip to making comparing videos easier, after sophisticles brought that program up in a different x265 thread.