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Carniphage

Carniphage

Member Since 31 May 2007
Offline Last Active Nov 15 2009 04:03 PM
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Posts I've Made

In Topic: .mkv on Apple TV?

06 December 2007 - 04:43 PM

In the mean time...

NitoTV seems to have improved some.
NitoTV is an AppleTV app based on the open-source Unix media player: MPLAYER

The latest version will natively play 720p MKVs on the Apple TV but it is still dropping frames.
HOWEVER Audio seems to stay in sync, and the number of dropped frames seems a lot better.

Has anyone had success with the latest versions?

C.

In Topic: Mount an AirDisk on ATV

27 September 2007 - 11:42 AM

Hello !
I've tried to mount my AirDisk (from my AirPort Extreme) with this command (on SSH):

mount_afp  afp://appletv:password@10.10.10.13/NAS ~frontrow/Movies/NAS
I've created the directory ~frontrow/Movies/NAS and my AirDisk need just the password from the AirPort. (also tried without password authentification)
And this command answers me
mount_afp: the mount flags are 0000 the altflags are 0020
mount_afp: AFPMountURL returned error 2, errno is 2

If I do "ls ~frontrow/Movies/NAS" it's empty...

I've also tried to rename my AirDisk without capital letters but it didn't work better..

What's wrong ?

Thank you for your help !



This is the command I use to mount the Airdisk

mount_afp afp://BaseStationName/DiskName/TV /Users/frontrow/Movies/TV

It does throw up some error messages, but it does work.
C.

In Topic: .mkv on Apple TV?

10 July 2007 - 10:07 AM

I'll describe what I see, and if you are getting a better outcome, I'd really like to hear.

I am currently able to play 720p MP4 content from a shared drive on my AppleTV. It works great, but means I have to transcode, and I lose Dolby Digital audio
I would like to be able to play 720p MKV files held on a shared network drive. These files are about a Gig for 45 mins. Which I reckon averages at 0.5 Megabytes per second.
That's easily within the speed of my network.

According to the Perian people - their forum and the to-do tickets in the project....
Perian needs to fully load the entire MKV file prior to playing. This is an acknowledged issue, and is scheduled to be improved in subsequent releases.

On a Mac Pro - with a 270mbs 802.11n network (which delivers 9megaBYTES per second) - VLC will play 720pMKV content flawlessly across the network.

But, if I use Quicktime/Perian 1.0 to load a 720p MKV file on a network drive, I see a loading bar in Quicktime. Perian has to pre-scan all MKV files.
For a 1GB file, it takes about 3-4 mins to load the file fully before playing. A wired gigabit ethernet link would be a bit faster.
If I press play *before* the loading completes, I get stuttering.
With the same file on a local drive, the loading is obviously faster (about a minute) and stuttering goes away if I press play early.

But on the AppleTV Perian's MKV implementation poses another problem.

The h264 module on the AppleTV only plays a subset of h264 content.
This means that only 50% of MKVs will play, the rest get a black screen.

Replacing the h264 component will result in that being fixed, but the replacement component is much less efficient on the Apple TV.
Not only is it not fast enough for 720p MKVs - it means that 720p MP4s will not play smoothly either.

So the choice is 50% of MKVs are black.
Or
No 720p content at all.

NitoTV uses Mplayer to play MKVs without Perian's pre-loading process.
However it drops a lot of frames, which would not be too bad, except that frame drops cause the audio and video to go out of sync.

If anyone has made more progress than this, I'd be pleased to hear.

C.

In Topic: .mkv on Apple TV?

06 July 2007 - 07:05 AM

Perian 1.0 should do just fine :P



If the MKV is 720p and the content is on a network drive then Perian 1.0 will not do fine.
Under these circumstances Perian struggles even on a Mac Pro.

Perhaps the next (optimized) version of Perian will improve things.

C.

In Topic: MKV Files

31 May 2007 - 09:31 AM

Long time listner, first time caller.

MKV playback on the Apple TV is still a work-in-progress but certainly looks possible.
I'm keen to see this happen because I have lots of 720p MKV 24fps h264 content.

There are currently two solutions for the AppleTV.

Perian is an add-on for Quicktime. The unreleased-still-in-beta Perian 1.0 does allow MKV playback. However the way it works requires the entire file to be read into Quicktime before it plays smoothly. If you install the Perian beta onto a Mac, you'll see a loading progress bar at the bottom of the player. Obviously playing files over a wireless network is going to be pretty lousy with this solition.

However sometime after the release of 1.0, the Perian team intend to improve the way this works.
Because it's a Quicktime component, it will mean that MKV will work with the brilliant AppleTVFiles plugin.

Another plugin for the AppleTV is NitoTV. This is a port of MPlayer - and plays 720p MKVs quite well. This player drops the odd frame, and after a while the audio has drifted out of sync. Nito is not great yet - but it proves that the Apple TV certainly has enough power to play 720p content.

C.
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