Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
x264 - filesize output calculator for 2-pass and CRF ?
#1
hello guys,
does anyone know if there is a filesize output calculator which can tell me in advance how big my output file will be ?
In HCencoder it was possible. You just had to import your .avs script and there was a field which was called "file length in kbytes" which told you exactly how big your file will be in the end.

Is there something similar for avs script based x264 encodes ? It would be even more awesome if it had a field where you could insert how many audio tracks you use and how big each audio track is and automatically telling you if your x264 video file is too big.

Thanks in advance for you suggestions
regards
Reply
Thanks given by:
#2
I use this bitrate calculator to obtain the average bitrate to pass to x264. That's all you have to do: HCenc's GUI simply had a bitrate calculator built in.
Reply
Thanks given by:
#3
(2020-08-03, 06:16 PM)Chewtobacca Wrote: I use this bitrate calculator to obtain the average bitrate to pass to x264.  That's all you have to do: HCenc's GUI simply had a bitrate calculator built in.
thanks a lot I will try that out. Regarding rate control there is only 2-pass but I guess CRF will probably not be possible since it varies from source to source.
Reply
Thanks given by:
#4
Yes. Avoid CRF encoding if you need to hit a certain file-size.
Reply
Thanks given by:
#5
Also allow some headroom for the m2ts files if you want to build a BD compliant disc - 6% should do, but I always leave 7%, just in case...
Reply
Thanks given by:
#6
Yeah, there's an option in the bitrate calculator for "other assets". I use that to factor in the overhead.
Reply
Thanks given by:
#7
(2020-08-04, 07:23 PM)spoRv Wrote: Also allow some headroom for the m2ts files if you want to build a BD compliant disc - 6% should do, but I always leave 7%, just in case...

6-7 % is quite a lot. I'm going for a BD compliant disc using "Blu-ray folder" as output in tsmuxer but I'm not planning to do any menus.
Reply
Thanks given by:
#8
(2020-08-05, 07:41 PM)loa Wrote: 6-7 % is quite a lot. I'm going for a BD compliant disc using "Blu-ray folder" as output in tsmuxer but I'm not planning to do any menus.

I know, and that's not even counting an eventual BD menu!

So, for example, if you have a 10GB .mkv file, you will end with .m2ts file with a size around 10.6GB.
Reply
Thanks given by: loa


Possibly Related Threads…
Thread Author Replies Views Last Post
Thumbs Up x264 BD compliant "perfect" settings spoRv 142 88,398 2020-05-31, 08:24 PM
Last Post: alexpeden2000
  [Idea] x264 BD compliant "perfect" settings - faster version spoRv 26 9,563 2020-05-11, 08:36 PM
Last Post: Stamper
  x264 encoding from Adobe Premiere DoomBot 26 8,386 2019-03-25, 08:26 PM
Last Post: jaminmc
  Tools and settings for compressing x264? NeonBible 1 845 2019-01-11, 12:01 PM
Last Post: MrBrown
  [Help] DNxHR to x264? Valeyard 2 1,068 2018-12-26, 10:16 AM
Last Post: TomArrow
  x264: 32bit or 64bit? spoRv 15 9,645 2018-03-03, 08:57 PM
Last Post: TomArrow
  xvYCC for x264 nightstalkerpoet 7 3,144 2017-12-30, 09:42 AM
Last Post: nightstalkerpoet

Forum Jump:


Users browsing this thread: 1 Guest(s)