Hi10p Transcoder

[_Snapper_]

Hi,

I have a bunch of 10-bit encoded MKV files that I would like to transcode to 8-bit. I once used hi10ptranscoder to do just that, to great effect (it was a simple, straightforward tool with no unnecessary options or shitload of settings to play around with to get what you want: you just had to select the file and then hit the "Transcode" button. End of story), but it appears it is no longer available on the creator's website (the download link leads to a 404 error page), so my question is: is there anyone who downloaded that software, still has it and would be able to share it by any chance? That would be much appreciated!



Thank you in advance for your answers!

[sneaker]

I don't but since it seems to be based on ffmpeg you can write a batch file that can do basically do the same. Simply write a text file, save as e.g. "hi10ptranscoder.bat" and drag&drop one or multiple files on it:

PUSHD %~dp0
if [%1]==[] goto :eof
:loop
ffmpeg -i %1 -map 0 -c:v libx264 -preset medium -crf 20 -maxrate 20M -bufsize 20M -level 4.0  -c:a copy -c:s copy "%~dpn1_[8bit-h264].mkv"
shift
if not [%1]==[] goto loop

Just needs ffmpeg.exe.

Decrease crf value to make file bigger/better quality. (-3 ~= double size)
Change preset from medium to something else to change speed: ultrafast,superfast, veryfast, faster, fast, medium, slow, slower, veryslow, placebo
https://trac.ffmpeg.org/wiki/Encode/H.264

[_Snapper_]

Thanks for the answer!

Seems to be working alright, though even with the "ultrafast" preset, it takes quite a lot of time to transcode the file (more than 20 minutes for a 20 minutes long file). I remember Hi10p Transcoder doing that in just a few seconds (or at least, much more rapidly than with this method), which is why I was looking for it.

So, my request still stands: if anyone has Hi10p Transcoder and would be willing to share it, consider me still interested in it. In the meantime, I'll use your method, sneaker.

Thanks again for your help!

[sneaker]

Seems to be working alright, though even with the "ultrafast" preset, it takes quite a lot of time to transcode the file (more than 20 minutes for a 20 minutes long file). I remember Hi10p Transcoder doing that in just a few seconds (or at least, much more rapidly than with this method), which is why I was looking for it.

That's not plausible. Encoding takes time. Speed depends - among other things - on source codec and resolution. Can you post the ffmpeg log and your system specs?