Elgato Turbo.264 HD, iPad and more

[rasmusjv]

Hi,

A new user here. And of course I got a lot of questions, but manly only a couple.

1. Can I make use of my Elgato Turbo.264 HD to speed up Conversation? XviD -> iPad/iPhone/iPod Touch?
2. Is there any "good" iPad preset to be found?

Thanks for your time.

Best regards

Rasmus, Denmark

[s55]

No and no, there is no ipad preset however,

All of HandBrakes presets will work with the iPad with the following exceptions:
Normal and High profile will need their output resolution reduced to 720p if your encoding HD content.

[Deleted User 11865]

No and no, there is no ipad preset however,

All of HandBrakes presets will work with the iPad with the following exceptions:
Normal and High profile will need their output resolution reduced to 720p if your encoding HD content.

And the framerate must not exceed 30 fps.

[alehel]

the turbo.264 really is a great product, but if you want control over your export settings, go for handbrake despite the lack of turbo.264 support.

While we are on the topic, would it be possible for handbrake to support the turbo.264 device at all? It's a great product and I would love to be able to take advantage of it.

[nightstrm]

God no. It sucks.

[LinBrake]

God no. It sucks.

I agree.

My testing with one of those devices yielded no improvements at all when comparing Quicktime 7 MKV to MP4 to Handbrake MKV to MP4. It was sometimes a lot slower than Handbrake consuming around the same amount of CPU as Handbrake. I returned the unit after that.

[hh83917]

After Handbrake went 64bit, turbo264 is no longer useful for me. I used to only use the turbo264 for quick encoding on-the-go, but still use Handbrake for iTunes storage. Now Handbrake is so fast, I'd just rather have better quality video all the time.

[nekogami13]

handbrake time to encode eyetv 1080p recording(21 minutes, 2.2gb) to appletv preset -33 minutes.
TurboHd-9 minutes to appleTv preset.
I guess "fast" is a relative term.

Handbrake is wonderful for DVD's, but I use other stuff for everything else.
I want a quick rip for iphone-turbohd or videomonkey(metatagging ftw).

[LinBrake]

The presets may not be equal so it is not a good speed comparison. The legacy AppleTV preset was faster too, but lower quality.

[dynaflash]

handbrake time to encode eyetv 1080p recording(21 minutes, 2.2gb) to appletv preset -33 minutes.
TurboHd-9 minutes to appleTv preset.

Um, and so the TurboHD has the same preset that HB has to make this an even comparison ? I think not.

[nekogami13]

Yep, both outputting 960x540 h.264 video.

[Deleted User 11865]

Yep, both outputting 960x540 h.264 video.

The Turbo.264's compression efficiency is nowehere near that of the AppleTV preset. By using faster x264 options, you can easily double the speed compared to the AppleTV preset.

[thompson]

Yep, both outputting 960x540 h.264 video.

Because clearly that's all there is to video encoding, dimensions and the name of the encoder.

[nekogami13]

Using the appletv preset, doesn't handbrake default to the most efficient and fastest settings to achieve it?
If not, why not?

I am not at my computer at this moment-so I cannot compare the bitrate, etc.

My personel experience is the turbohd is faster then handbrake when converting my HD content.
I prefer videomonkey for non-DVD stuff because of metatagging.

[nekogami13]

Here is more info:
Handbrake 64bit-37 minutes
AppleTv preset-x264
Output
960x540
1507 Kbps bitrate
Main profile L3.1
29.904 fps
CABAC-no
QF 0.061


TurboHd
AppleTv 150% setting(upped to high bitrate)-apple quicktime encoder-9 minutes
Output
960x540
3748 Kbps bitrate
Main L3.1
29.970 FPS
CABAC 3 reference frames
QF 0.208

[creamyhorror]

Using the appletv preset, doesn't handbrake default to the most efficient and fastest settings to achieve it?
If not, why not?

Settings can't be both fast and efficient. Fast settings are less bitrate-efficient, i.e. they result in less quality for the same bitrate. Slow settings are more bitrate-efficient. Handbrake relies on the x264 encoder, which retains a high quality on default settings. If you modified the settings in Handbrake to faster ones, you'd probably be able to match the speed of Turbo.264 and produce higher quality video. Conversely, it's pretty unlikely you can get Turbo.264 to match x264's quality, even turning up the settings to maximum.

[nightstrm]

Using the appletv preset, doesn't handbrake default to the most efficient and fastest settings to achieve it?
If not, why not?

Because the Apple presets were designed to hold quality and size to a higher standard than encoding speed. You can remove some of the advanced x264 features to increase encoding speed if you want, but you'll sacrifice size (and possibly quality, depending on what exactly you change).

[Deleted User 11865]

Here is more info:
Handbrake 64bit-37 minutes
AppleTv preset-x264
Output
960x540
1507 Kbps bitrate
Main profile L3.1

The current AppleTV preset does not produce Main Profile H.264. What version of HandBrake are you using?

[mduell]

If you're OK with tripling the video bitrate you can make Handbrake go a lot faster with simpler/less efficient encoding.