AppleTV Custom Presets - 0.9.4

Discuss encoding for devices and presets.
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dynaflash
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Re: AppleTV Custom Presets - 0.9.4

Post by dynaflash »

Check framerate vs. resolution. if its > 24 fps and 720p it will not transfer. This is a known limitation.
milescortez

Re: AppleTV Custom Presets - 0.9.4

Post by milescortez »

dynaflash wrote:Check framerate vs. resolution. if its > 24 fps and 720p it will not transfer. This is a known limitation.
Framerate is "Same as Source" and resolution Source is 1920 x 1080 as is the Output Source. Anamorphic is "none". Does this tell you anything?
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JohnAStebbins
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Re: AppleTV Custom Presets - 0.9.4

Post by JohnAStebbins »

A scan log would tell us all. If you are using "Same as Source" for the framerate, then we need to know the framerate of the source since the output will be the same. This information will be in the scan log.
DriverJC
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Re: AppleTV Custom Presets - 0.9.4

Post by DriverJC »

Most HD Shows I have run into have when scanned by handbrake say the following

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 + size: 1920x1080, pixel aspect: 1/1, display aspect: 1.78, 29.970 fps
where is says 29.97 fps that is what you are looking for. If the fps is 29.97 or higher and the hight is above 720 the file will not be transferred to the AppleTV.

put an entry "-X 960" into your encode string to ensure that the file does not go above 720 in hight. My Code is pasted below, it streams and syncs Perfectly

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-e x264 -q 23.0 -a 1,1 -E ca_aac,ac3 -B 160,160 -6 dpl2,auto -R 48,Auto -D 0.0,0.0 -f mp4 -4 -X 960 -M 709 --loose-anamorphic -m -x ref=3:mixed-refs=1:bframes=3:me=hex:subq=7:b-adapt=2:8x8dct=1:weightb=0:trellis=0:weightp=0:vbv-maxrate=5000:vbv-bufsize=5000
joel
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Re: AppleTV Custom Presets - 0.9.4

Post by phoenixdown »

milescortez:
you said you MKV -- AppleTV only supports mp4/m4v.
dynaflash
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Re: AppleTV Custom Presets - 0.9.4

Post by dynaflash »

milescortez wrote:
dynaflash wrote:Check framerate vs. resolution. if its > 24 fps and 720p it will not transfer. This is a known limitation.
Framerate is "Same as Source" and resolution Source is 1920 x 1080 as is the Output Source. Anamorphic is "none". Does this tell you anything?
Well if you wrote that correctly, the output is showing 1920 x 1080 which in no way shape or form would work on an appletv.
Masso
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Re: AppleTV Custom Presets - 0.9.4

Post by Masso »

heiii

okay i have just bought an apple tv, and realised that all the dvd i have rip into my macmini dont support the apple tv, because i dont have used this preset. can i do something to fix the movies i already have rip?
TedJ
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Re: AppleTV Custom Presets - 0.9.4

Post by TedJ »

Sorry, but there is no "quick fix" for getting these files to work on the Apple TV... you'll need to re-encode them.
dynaflash
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Re: AppleTV Custom Presets - 0.9.4

Post by dynaflash »

After much more testing I have determined that using

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vbv-maxrate=5500:vbv-bufsize=5500
Is probably as high as you can safely go on HD sources encoding to 1280 x 720. This testing includes the Planet Earth Birds clip, the Avatar clip as well as a clip from GI Joe which features a ton of shattering glass and is a bitrate spike monster.

Also of note I have removed

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weightb=0
As atv software rev 3.0 has no issues with weightb that I have found.

Sooo, fwiw I am using:

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ref=3:mixed-refs=1:bframes=3:me=hex:subq=7:b-adapt=2:8x8dct=1:trellis=0:weightp=0:vbv-maxrate=5500:vbv-bufsize=5500
with an rf of 22 for HD sources and 19 for SD sources.

In testing I am rarely hitting the vbv cap on all but the most stuttering source content and am getting smooth playback.
nightstrm
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Re: AppleTV Custom Presets - 0.9.4

Post by nightstrm »

Just a heads up, starting with SVN 3424, custom AppleTV presets will need to be updated to include "b-pyramid=none" to maintain compatibility. I didn't catch this at first and ended up having to re-encode a couple Bluray discs over the weekend.
dynaflash
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Re: AppleTV Custom Presets - 0.9.4

Post by dynaflash »

Good call. I forgot to update this thread.
heliocentric
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Re: AppleTV Custom Presets - 0.9.4

Post by heliocentric »

so just to confirm you download the latest nightly build of handbrake, select the apple tv preset, adjust rf to 22 (for hd sources), set width to 1280 and replace the advanced options with this?

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b-pyramid=none:ref=3:mixed-refs=1:bframes=3:me=hex:subq=7:b-adapt=2:8x8dct=1:trellis=0:weightp=0:vbv-maxrate=5500:vbv-bufsize=5500
thanks

p.s. what anamorphic setting should i use?
Last edited by heliocentric on Sat Aug 21, 2010 9:00 am, edited 1 time in total.
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Rodeo
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Re: AppleTV Custom Presets - 0.9.4

Post by Rodeo »

heliocentric wrote:

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b-pyramid=no:neref=3:mixed-refs=1:bframes=3:me=hex:subq=7:b-adapt=2:8x8dct=1:trellis=0:weightp=0:vbv-maxrate=5500:vbv-bufsize=5500
Should be b-pyramid=none:ref=3 (there's a typo in your string).
heliocentric
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Re: AppleTV Custom Presets - 0.9.4

Post by heliocentric »

Rodeo wrote:
heliocentric wrote:

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b-pyramid=no:neref=3:mixed-refs=1:bframes=3:me=hex:subq=7:b-adapt=2:8x8dct=1:trellis=0:weightp=0:vbv-maxrate=5500:vbv-bufsize=5500
Should be b-pyramid=none:ref=3 (there's a typo in your string).
thannks :)

have now amended that.
heliocentric
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Re: AppleTV Custom Presets - 0.9.4

Post by heliocentric »

heliocentric wrote:so just to confirm you download the latest nightly build of handbrake, select the apple tv preset, adjust rf to 22 (for hd sources), set width to 1280 and replace the advanced options with this?

Code: Select all

b-pyramid=none:ref=3:mixed-refs=1:bframes=3:me=hex:subq=7:b-adapt=2:8x8dct=1:trellis=0:weightp=0:vbv-maxrate=5500:vbv-bufsize=5500
thanks

p.s. what anamorphic setting should i use?
can anyone confirm i am correct with this? thanks

i also read you should use custom anamorphic to get the maxium amount of pixels in your encode
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Rodeo
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Re: AppleTV Custom Presets - 0.9.4

Post by Rodeo »

heliocentric wrote:
heliocentric wrote:so just to confirm you download the latest nightly build of handbrake, select the apple tv preset, adjust rf to 22 (for hd sources), set width to 1280 and replace the advanced options with this?

Code: Select all

b-pyramid=none:ref=3:mixed-refs=1:bframes=3:me=hex:subq=7:b-adapt=2:8x8dct=1:trellis=0:weightp=0:vbv-maxrate=5500:vbv-bufsize=5500
thanks

p.s. what anamorphic setting should i use?
can anyone confirm i am correct with this? thanks
My mentioning of the typo implied that, aside from said typo, the x264 options are correct.
heliocentric wrote:i also read you should use custom anamorphic to get the maxium amount of pixels in your encode
You could use custom anamorphic to encode 2.35:1 and similar movies to the full 1280x720 resolution (setting the pixel aspect ratio to preserve the correct display dimensions), rather than the usual 1820x544 or 1280x528.
heliocentric
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Re: AppleTV Custom Presets - 0.9.4

Post by heliocentric »

i tried enocoding a dvd with dynaflashes advanced string found on his website (mixed-refs=1:b-adapt=2:b-pyramid=none:trellis=0:weightp=0:vbv-maxrate=5500:vbv-bufsize=5500) using the latest nightly build but when i do this i get slightly blocky fades when viewed on my apple tv.

i tried the same advanced string in the normal .9.4 version and i dont get the same blocky fade...

does anyone know the reason for this?

thanks
newtonuk
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Re: AppleTV Custom Presets - 0.9.4

Post by newtonuk »

Okay, this might be a stupid question, but do I just select the built in Apple TV preset, change the quality slider so that RF is 19.25 and then paste the advanced string over the existing code in the Advanced String Option box?

Cheers!
TedJ
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Re: AppleTV Custom Presets - 0.9.4

Post by TedJ »

That's pretty much it, yes. :)
cheezmo
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Re: AppleTV Custom Presets - 0.9.4

Post by cheezmo »

Don't know, but I can confirm I've been seeing the same thing.
heliocentric wrote:i tried enocoding a dvd with dynaflashes advanced string found on his website (mixed-refs=1:b-adapt=2:b-pyramid=none:trellis=0:weightp=0:vbv-maxrate=5500:vbv-bufsize=5500) using the latest nightly build but when i do this i get slightly blocky fades when viewed on my apple tv.

i tried the same advanced string in the normal .9.4 version and i dont get the same blocky fade...

does anyone know the reason for this?

thanks
MrMister111
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Re: AppleTV Custom Presets - 0.9.4

Post by MrMister111 »

Read through all the post but can some confirm what dynaflash advanced string is now for the Public HB release 0.94 for AppleTV, for good balance of quality/file size please.

I have a AppleTV (1G) with s/ware v3.0.2 on my iMac with Snow Leopard 10.6.4

Cheers
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Rodeo
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Re: AppleTV Custom Presets - 0.9.4

Post by Rodeo »

The latest advanced options strong is for a nightly, but will work in 0.9.4 as well (some options are redundant in 0.9.4).
dynaflash
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Re: AppleTV Custom Presets - 0.9.4

Post by dynaflash »

well, hb 0.9.4 is old as dirt, and does not have weightp (among other things) that said the x264 in hb 0.9.4 should just ignore the weightp in that option string.

Better yet though grab a HB nightly if you want the latest and greatest.
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Rodeo
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Re: AppleTV Custom Presets - 0.9.4

Post by Rodeo »

dynaflash wrote:well, hb 0.9.4 is old as dirt, and does not have weightp (among other things)
Yes it does. Re-read your first post ;-)
dynaflash
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Re: AppleTV Custom Presets - 0.9.4

Post by dynaflash »

ah, I stand corrected. memory is not what it used to be sadly :roll:
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