View Single Post
Old 28th January 2010, 14:12   #2  |  Link
shon3i
BluRay Maniac
 
shon3i's Avatar
 
Join Date: Dec 2005
Posts: 2,419
Here i made table for allowed combinations, acording bd specs, which are not in public. Btw you can use Main Profile@Level 4.1 and lower with this settings.



One thing i missed that for all resolution if level 4.1 used, slices are required, not only for 1080,720 resoultions like in table.

AVC on BD standrad is little more limited than AVC itself, generaly by the refs, VBV, bframes, resoulutions, GOP.

Quote:
In x264, in case of "strict" b-pyramid, ref frame is decrease of 1, it seems ?
B-pyramid strict is completly Blu-Ray compilant, while normal is not. You don't need worry about refs, you can use --ref 4 and --b-pyramid strict normaly, old x264 b-pyramid is been broken and even rush AVC standard.

Quote:
For 1920x1080, for blu-ray, max b-frame is 3. Is it still the same for 1280x720 ? Any others resolutions ?
Is, only in caseof pure HP@L4.1 the max b-frame limited to ref ?
Max bframes is 3, for all combination, no exceptions.

Quote:
What are, in 1920x1080 and 1280x720, all the progressive frame rate blu-ray compliant ?
For 1080p allowed fps is 23.976 and 24, for 720p is 23.976,24,50,59.97.

Quote:
Have the MaxMvsPer2Mb parameter any link with the --merange parameter of x264 ? If not, is there any parameter related to it ?
x264 default oarametar is compilant with Blu-Ray which is 511.75 IIRC.

Quote:
Could it be interesting to have in x264 a --blu_ray flag
There have been some rumors that x264 will get --device switch. But nothing yet. Anyway i will happy if this switch automaticly correct evey user input that not meet device settings and not start to encode if some other parametar not meet such resolution, not only warn or something.

Quote:
Now with the nal_hrp patch near to be commited, could it be interesting to gather all the informations necessary to produce blu-ray compliant stream in the same place ?
I would like to see same, instead we have tons of same treads with same questions, and same answers.
shon3i is offline   Reply With Quote