VidCoder takes too long encoding

Dec 9, 2013 at 8:28 PM
Edited Dec 9, 2013 at 8:40 PM
Hi,

Why does it take 30hrs to encode a 4.5hrs video at 5000kb VBR under "slow" preset? It's pulling 100% of all 4 cores, yet it's very slow or is this normal speed?

I'm using VidCoder v1.4.25 x64.


PC Spec:
CPU i7 2.93ghz QC
9gb memory
120gb solid state hdd
2gb video card

Regards,
Klipsi
Coordinator
Dec 9, 2013 at 8:34 PM
This is just a guess but I think it may be because you've chosen the "slow" preset. Try Medium or Very Fast.
Dec 9, 2013 at 8:44 PM
Do you know speed calculation between preset and CPU speed?

4.5hrs video encoding takes me 25hrs at medium preset.
4.5hrs video encoding takes me 30hrs at slow preset.

when i used bd-rebuilder it only takes me 20hrs at medium preset.

I want high quality video contents. Is there something else i can do to reduce the time will maintaining the quality?


Thanks.
Coordinator
Dec 9, 2013 at 9:13 PM
You can use constant quality. That way you'll get a predictable quality level and the x264 preset will be trading off between size and encoding speed.

As for the comparison between bd-rebuilder I would make sure it's using the same x264 preset system and that it's encoding the same audio tracks, H.264 level/profile, cropping, frame size, framerate, etc.