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Old 13th May 2010, 15:56   #21  |  Link
kolak
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Quote:
Originally Posted by mp3dom View Post
Infact it's mentioned in the tab
I would like to add that even if it's allowed to have a fullHD secondary video, it's better to prefer SD secondary video because not all the standalone players are able to handle 2 fullhd stream at once.
I see it now
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Old 13th May 2010, 17:32   #22  |  Link
sub24ox7
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What we still need are the exact specifications for 100% blu-ray compliant video I have a good idea or at least I am 99% sure I already know all the specifications I just want to be 100% sure.
Now that x264 can produce a 100% compliant blu-ray video I
think it would be a great Idea to have a sticky with he exact encoder settings.
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Old 13th May 2010, 17:40   #23  |  Link
ajp_anton
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Quote:
Originally Posted by shon3i View Post
Not exactly because situation looks like this:

1. 15000 is max for DVD
2. 15000 is max i you want use 2 sec GOP besides you use DVD or BD
3. you can still use 1 sec gop.

so if you don't use 2 sec GOP that mean you will use 1 second instead. I will somehow fix this.

@all, be patient
What I suggested means
DVD, 1s GOP: 15000
DVD, 2s GOP: 15000
BD, 1s GOP: 40000 / 24000
BD, 2s GOP: 15000

You could make it even more clear by adding "1 sec GOP" to the 40000/24000 maxrate.

Or is this wrong?
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Old 13th May 2010, 20:32   #24  |  Link
shon3i
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Quote:
You could make it even more clear by adding "1 sec GOP" to the 40000/24000 maxrate.
Yes you right, i will fix this somehow.
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Old 13th May 2010, 21:20   #25  |  Link
kolak
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Quote:
Originally Posted by sub24ox7 View Post
What we still need are the exact specifications for 100% blu-ray compliant video I have a good idea or at least I am 99% sure I already know all the specifications I just want to be 100% sure.
Now that x264 can produce a 100% compliant blu-ray video I
think it would be a great Idea to have a sticky with he exact encoder settings.
Keep in mind that x264 was mainly tested with 1920x1080 24p sources. If you start using other possible combination you may find some problems.

Losts of people use 40Mbit as max bitrate- this would be the first thing which I would avoid Encoding for BD is not exactly the same as for PC playback.


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Old 16th May 2010, 18:11   #26  |  Link
laserfan
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Thanks shon3i for the charts.

Question: I've been using --keyint 24 and 15000/15000 for all "BD"-on-DVD work, and given my bitrates are typically in the low 3500-7000 range should I really be using --keyint 48 instead to minimize "pulsing" at GOP changes?
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Old 16th May 2010, 19:05   #27  |  Link
poisondeathray
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I can't see any reason NOT to use the longer gop size if you are <15Mbps.
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Old 16th May 2010, 19:45   #28  |  Link
shon3i
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Originally Posted by poisondeathray View Post
I can't see any reason NOT to use the longer gop size if you are <15Mbps.
I agree, longer gop, better compression efficiency, is not that marginal but probably will reduce some pulsing.
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Old 16th May 2010, 19:53   #29  |  Link
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Thanks for confirming!!!
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Old 18th May 2010, 17:58   #30  |  Link
MadMonkey57
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And what about --min-keyint ? Does it have to be set with regards to --keyint or x264 default (auto) is blu ray compliant ?
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Old 18th May 2010, 20:55   #31  |  Link
Santa
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I'm pretty sure to have a 25p or 30p bluray disc with some demo movies from panasonic.
is it sure that the only allowed progressive framerate for 1920x1080 resolution is 23.976 or 24p and not 25p or 30p?
i'll take a look on that bluray disc as soon as possible.
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Old 18th May 2010, 21:17   #32  |  Link
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Quote:
Originally Posted by Santa View Post
I'm pretty sure to have a 25p or 30p bluray disc with some demo movies from panasonic.
is it sure that the only allowed progressive framerate for 1920x1080 resolution is 23.976 or 24p and not 25p or 30p?
i'll take a look on that bluray disc as soon as possible.
It is possible using PAFF mode.
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Old 18th May 2010, 21:37   #33  |  Link
shon3i
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There are many disc that out of specs even retail's, that disc probably is not done by any "expensive" authoring software, that follow BD Specs, which clearly not allow 25p or 30p as combination.

As kieranrk says, it's possible to encode as 50i or 60i using some of interlace modes, which not skrew PQ
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Old 18th May 2010, 23:12   #34  |  Link
kieranrk
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Originally Posted by shon3i View Post
which clearly not allow 25p or 30p as combination.
It doesn't say that per se. It says frame_mbs_only must be zero. This makes it possible to write progressive frames (i.e. all frames are progressive in PAFF mode)

Last edited by kieranrk; 18th May 2010 at 23:23.
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Old 18th May 2010, 23:40   #35  |  Link
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But has anyone seen it actually work in a hardware player? (encoding 25p/30p as 50i/60i)
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Old 19th May 2010, 00:58   #36  |  Link
TinTime
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I've come across a couple of blu-rays that are nominaly 50i but are sped up films and so 25p. "Brick" and "The Reader" are both like that, in the UK anyway. Both were MBAFF I think.
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Old 21st May 2010, 15:21   #37  |  Link
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The new fake-interlaced mode should encode 25p and 30p streams in a Blu-Ray compliant manner.
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Old 21st May 2010, 15:26   #38  |  Link
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Originally Posted by kieranrk View Post
The new fake-interlaced mode should encode 25p and 30p streams in a Blu-Ray compliant manner.
Interesting; is this a new patch ?

Can you provide more details on which switches or syntax to use to activate it?
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Old 21st May 2010, 15:30   #39  |  Link
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Interesting; is this a new patch ?

Can you provide more details on which switches or syntax to use to activate it?
http://git.videolan.org/gitweb.cgi?p...9e6fd01db238bc

Quote:
--fake-interlaced

Flag stream as interlaced but encode progressive. Makes it possible to encode 25p and 30p Blu-Ray streams. Ignored in interlaced mode.
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Old 21st May 2010, 15:31   #40  |  Link
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^ thanks for the clarification
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