no compression = faster?

[shawnd2007]

if I don't care about file size, but i do care about time, Would I be better off selecting no compression? In other words, whats the fastest way to rip? Sorry if this a question that's been posted else where.

[nightstrm]

This isn't an option in Handbrake.

[shawnd2007]

ok. i figured that's what "constant quality 100.00%" gave you.
Is there a guide or link on ways to get the fastest rips if you are unconcerned with file size. I hate waiting the length of the movie to rip the movie.


Thankis

[JohnAStebbins]

Constant quality 100% means lossless, not passthru. The source video is decoded, then reencoded such that the output matches the input pixel for pixel. Lossless encoding results in very large files. Much larger than the original source unless the source was raw uncompressed frames.

The x264 command line help is useful for looking at what the x264 developers recommend for tweaking speed. Here are the presets supported by the x264 cli. These options can be entered directly into handbrakes advanced options panel.

Code: Select all

      --preset                Use a preset to select encoding settings [medium]
                                  Overridden by user settings.
                                  - ultrafast:
                                    --no-8x8dct --aq-mode 0 --b-adapt 0
                                    --bframes 0 --no-cabac --no-deblock
                                    --no-mbtree --me dia --no-mixed-refs
                                    --partitions none --rc-lookahead 0 --ref 1
                                    --scenecut 0 --subme 0 --trellis 0
                                    --no-weightb --weightp 0
                                  - superfast:
                                    --no-mbtree --me dia --no-mixed-refs
                                    --partitions i8x8,i4x4 --rc-lookahead 0
                                    --ref 1 --subme 1 --trellis 0 --weightp 0
                                  - veryfast:
                                    --no-mixed-refs --rc-lookahead 10
                                    --ref 1 --subme 2 --trellis 0 --weightp 0
                                  - faster:
                                    --no-mixed-refs --rc-lookahead 20
                                    --ref 2 --subme 4 --weightp 1
                                  - fast:
                                    --rc-lookahead 30 --ref 2 --subme 6
                                  - medium:
                                    Default settings apply.
                                  - slow:
                                    --b-adapt 2 --direct auto --me umh
                                    --rc-lookahead 50 --ref 5 --subme 8
                                  - slower:
                                    --b-adapt 2 --direct auto --me umh
                                    --partitions all --rc-lookahead 60
                                    --ref 8 --subme 9 --trellis 2
                                  - veryslow:
                                    --b-adapt 2 --bframes 8 --direct auto
                                    --me umh --merange 24 --partitions all
                                    --ref 16 --subme 10 --trellis 2
                                    --rc-lookahead 60
                                  - placebo:
                                    --bframes 16 --b-adapt 2 --direct auto
                                    --slow-firstpass --no-fast-pskip
                                    --me tesa --merange 24 --partitions all
                                    --rc-lookahead 60 --ref 16 --subme 10
                                    --trellis 2

HandBrakes 'Normal' preset is equivalent to x264's 'medium' default preset.

[mduell]

ok. i figured that's what "constant quality 100.00%" gave you.
Is there a guide or link on ways to get the fastest rips if you are unconcerned with file size. I hate waiting the length of the movie to rip the movie.

HandBrake is the wrong tool for you. You want a DVD ripper like MacTheRipper.

[shawnd2007]

thank you. I am familiar with the ripper, but i want the end result to be an mp4. I am just looking for the fastest way to get from dvd to mp4 and thought that perhaps if I told handbrake 'don't bother compressing' that maybe it would finish faster.

[jamiemlaw]

It's not the compressing that takes the time but rather the converting into a new format. If you want it to go faster, go with JohnAStebbins' advice and tweak the advanced settings. Here are those presets reformatted.

Code: Select all

veryfast:   mbtree=0:me=dia:mixed-refs=0:analyse=i8x8,i4x4:ref=1:subq=0:trellis=0:weightp=0
faster:     mbtree=0:mixed-refs=0:ref=2:subq=4:weightp=1
fast:       rc-lookahead=30:ref=2:subq=6

The faster it takes, the lower quality you'll get, so you need to ramp up the quality slider to compensate.

[mduell]

It's not the compressing that takes the time but rather the converting into a new format.

The compressing that takes the time. Just changing the container format would be trivial.

[jamiemlaw]

I probably should have said "transcoding".

[mduell]

The compression is the transcoding. Keep digging.

[jamiemlaw]

We're probably talking at cross purposes, so I'll dig one level further and then stop. By compression I think I mean "how large the fie turns out" and by "format" I think I mean the codec.