NEW -- 10-bit decoding support in Handbrake

musicvid10 wrote on 10/24/2011, 9:23 PM

This from Rodeo, one of the Handbrake developers:

"The nightly builds have 10-bit decoding support for H.264 (and DNxHD, FWIW).

I'll make some time to test the first one this weekend and report back. But it should be great news for those of us who are using DNxHD as an intermediate from Vegas to Handbrake. 10-bit 4:2:2 encoding is not yet available in HB, largely because there is little mainstream use for it yet.

Comments

Tom Pauncz wrote on 10/24/2011, 9:30 PM

Does anyone know if there is an input filesize limit with HB?

I know for a fact that 65GB input files crashes it. So does 9GB...

Tom

musicvid10 wrote on 10/24/2011, 9:50 PM

25/50 GB BluRays import into Handbrake by design; must confess I haven't tried a 65 GB file, but there are no published limits I have seen.

Tom Pauncz wrote on 10/25/2011, 7:04 AM

The 65GB files was actually a DNxHD intermediate file I wanted to pass to HB for the encode to MP4.

It was of a 1hr 3min video of a speaker's presentation with embedded PPT slides.

Tom

musicvid10 wrote on 10/25/2011, 9:26 AM

Tom, My experience with DNxHD files not opening in Handbrake was usually due to one of the following:

-- File encoded 10-bit rather than 8-bit (in all but the most recent HB nightly versions)
-- Alpha not blocked by the bottom layer (add a 16-16-16 solid track below the rest)
-- Nested projects in the final project (had to paste the actual events)

I would be interested in seeing if it opens after following these suggestions.

Tom Pauncz wrote on 10/25/2011, 10:54 AM

Thanks,
Will have to give it a shot with the smaller file that broke.

Leaving on hols tomorrow, but will get to it in about a week.

Interesting points, though I am almost sure none of those apply. Project was very straight forward - tape of a speaker with a locked-down camera. Render from HDV to the DNxHD codec. Minor colour correction filters applied.

Tom

musicvid10 wrote on 10/25/2011, 11:11 AM

The 220Mbps 10-bit DNxHD template is the default, I made that mistake many times before creating a custom template in Vegas that uses 8-bit 145.

Tom Pauncz wrote on 10/25/2011, 11:38 AM

I am using a custom template as suggested by the thread/tutorial about uploading great quality to Youtube...
Tom

musicvid10 wrote on 10/28/2011, 11:36 AM

I can confirm that the 10-bit 220Mbps DNxHD is working with the latest nightly build of Handbrake, and the 8-bit output is superb.

I haven't tested other YUV 10-bit 422 codecs with Handbrake yet.

Laurence wrote on 10/28/2011, 12:48 PM

Ok, the big question then is how does Handbrake's 10 to 8 bit dither look compared to Vegas's? Any smoother on the gradients? Any difference in moire?