Apple TV 2
Forum rules
An Activity Log is required for support requests. Please read How-to get an activity log? for details on how and why this should be provided.
An Activity Log is required for support requests. Please read How-to get an activity log? for details on how and why this should be provided.
Re: Apple TV 2
I just tried downloading the 1080P Harry Potter and Deathly Hallows trailer from the Quicktime website. I dropped it into itunes and streamed it to the ATV2 where it played within seconds and without any hitches. It obviously downgraded the resolution to 720P but I was impressed with how fast it loaded up. Of note, I'm using 80211-N.
When someone hacks into this thing and allows it to display in 1080P, the real tests will start
When someone hacks into this thing and allows it to display in 1080P, the real tests will start
Re: Apple TV 2
Don't know. > 2 years, as trellis 2 was available and worked in HB 0.9.3.Terc wrote:I also did not realize trellis=2 was available. Last I heard (which was a while ago), trellis=2 did nothing. Only trellis=1 was available. I don't doubt it works now, but when did this change? Trellis seems to do its job for me at 1, but I suppose I could try out trellis=2 and see if I notice a difference.
Re: Apple TV 2
Very interested in this one. Looking forward to a preset for my Apple TV 2G.
Re: Apple TV 2
I'm sure someone told me trellis 2 was selectable, but didn't affect encoding a while back (I think after .9.4). I still can't see any difference, but that might just be me. I think I've settled on some settings at this point, but I'd really appreciate someone testing them out to see if they cause any problems with the new Apple TV. I'd even post up a chapter with some complex scenes if I could get something that wasn't copywriten.Rodeo wrote:Don't know. > 2 years, as trellis 2 was available and worked in HB 0.9.3.Terc wrote:I also did not realize trellis=2 was available. Last I heard (which was a while ago), trellis=2 did nothing. Only trellis=1 was available. I don't doubt it works now, but when did this change? Trellis seems to do its job for me at 1, but I suppose I could try out trellis=2 and see if I notice a difference.
I just want to be sure that anything I encode from here out will work on the Apple TV 2 so that when i get it, I'll already have a decent selection of videos available.
I'll post my current preset in a little while, finishing up another 720P test that should be done in about 30 min.
Re: Apple TV 2
Either that person was wrong or you misunderstood.Terc wrote:I'm sure someone told me trellis 2 was selectable, but didn't affect encoding a while back (I think after .9.4).
Re: Apple TV 2
Not to take this thread too far off-topic, but Terc where are you located? Apple stores have gotten these in now, so you may want to head to your closest Apple store and pick one up (which I did a 1-2 days ago).
Re: Apple TV 2
If I land this next big client job, I will be picking one up for sure. Now here's hoping that the jailbreak crowd starts bringing more apps to the Apple TV so it can directly compete with other media center options like Boxee and Plex that pull in content from all over the web. Honestly, that's the only thing holding me back from selling off the Mac Mini and going with the Apple TV as my sole media device.
Re: Apple TV 2
Great work here mate!
One request: could you try a 720p sample encoded with High Profile 4.1 and a bitrate of 10.000 ?
Hope it works!
One request: could you try a 720p sample encoded with High Profile 4.1 and a bitrate of 10.000 ?
Hope it works!
Re: Apple TV 2
High Profile 4.1 bitrate of 4500 every now and then it stutters. Try another bitrate 6000 same stutters every now and then. Converting these two movies with the high profile prest they then both played perfectly.
Re: Apple TV 2
@720p ?HotDogWolf wrote:High Profile 4.1 bitrate of 4500 every now and then it stutters. Try another bitrate 6000 same stutters every now and then. Converting these two movies with the high profile prest they then both played perfectly.
-
- Posts: 1
- Joined: Wed Oct 06, 2010 11:42 pm
Re: Apple TV 2
Howdy guys. newb here, so apologies if this has been answered already. Much of your conversation is way over my head though, so I'm just hoping for a simple answer
I just picked up the new Apple TV, and I'm looking to rip my DVD collection (about 2,000) to put into iTunes (basically a media server) to stream to the AppleTV from now on. I suppose I'd also like the content to work on an iPhone4 and iPad as well, but the main goal is to look/sound the best on the AppleTV. These are all just standard DVDs, so I know its not 720p or anything, but I wanted to know which preset I should use for the best results with my content. The AppleTV will be outputting to either a 32" 720p or 55" 1080p capable (but I guess only 720p used) display, so hopefully it will upscale the content nicely.
Any help is appreciated.
I just picked up the new Apple TV, and I'm looking to rip my DVD collection (about 2,000) to put into iTunes (basically a media server) to stream to the AppleTV from now on. I suppose I'd also like the content to work on an iPhone4 and iPad as well, but the main goal is to look/sound the best on the AppleTV. These are all just standard DVDs, so I know its not 720p or anything, but I wanted to know which preset I should use for the best results with my content. The AppleTV will be outputting to either a 32" 720p or 55" 1080p capable (but I guess only 720p used) display, so hopefully it will upscale the content nicely.
Any help is appreciated.
Re: Apple TV 2
High Profile preset. Drop AC3 if you don't have a capable receiver. Filter as appropriate.
Re: Apple TV 2
Terc wrote:Ok, here is my cpu intensive preset. It plays great on the iPhone 4, includes the ac3 track for perfect audio when attached to the surround system, and has a stereo 128kbps aac track 2 for playback on the iPhone 4/iPad/iPod Touch 4th gen (which is automatically selected on apple devices that won't play ac3!). Would anyone be so kind as to test this out on their new Apple TV? I'm especially interested in what happens with very high complexity scenes. I've tried both DVD and 720P resolutions with great results - both on my Mac Mini 1.6 core duo and on my iPhone 4, but no 1080P (which it sounds like wouldn't be output to any display anyways). I'm very impressed with the iPhone 4 chipset, amazing what it can do.
Here's the preset download link http://cl.ly/1eddcc79a70ace5dbfe9
Warning - This preset uses lots of high profile settings. It's going to take quite some time to encode. With my 3.33 quad core, I'm getting about 33fps average encode rates on 480P and 20 fps on 720P content. It's SLOW, but you're going to get relatively small files with very, very good quality video.
I am using your preset, with the changes which were recommended by others. The only issue I have is that it defaulted to 320b audio, I'm guessing based on the specs of the ATV that this will fail. Will I have to set the bitrate for audio lower whenever I have a higher quality source?
Re: Apple TV 2
Following a sojourn into ATV1 + XBMC + CHD I went back and ran a couple more 720p tests on the ATV2 in an attempt to find some practical decoding limits. I say “practical” because I’m sure there’s a way to kill the ATV2 with constant quality encodes at RF 10 or something equally ridiculous but that doesn’t interest me as I’m trying to find the best quality at settings that would be considered conventionally reasonable. I worked with two of the scenes I used previously, the first “waterfall” scene in Avatar and the “birds” scene in Planet Earth episode 1. And I took Mduell’s suggestion and started with the “very slow” preset.
I tested three different encoding settings (all at 720p output):
Here are the objective results from each test:
Each of these tests played back perfectly on the ATV2, no stuttering or frame drops. To my eyes each of these tests were indistinguishable from the 1080p source when both are viewed on a 720p television.
The FPS column in the above results is the speed at which HandBrake was able to transcode the scenes, obviously, that number is going to be different for everyone depending on your encoding machine. For the sake of comparison, I’m running a 2.8Ghz x 8 Mac Pro from early 2008 with 6GB of RAM.
The settings I intend to use for my own movies will be something like the above Setting C. Setting subpixel motion estimation at 10 is a CPU killer and I’m willing to forgo 2%-6% of additional file size in exchange for 200%-300% encoding speed gains when the resulting video quality in all situations is ideal for my purposes.
-Berylium
I tested three different encoding settings (all at 720p output):
Code: Select all
Setting A Setting B Setting C
RF 18 18 18
Ref Frames 5 4 4
B-Frames 8 6 6
CABAC On On On
8x8 transform On On On
Weight P On On On
Pyramidal B On On On
Adaptive B Optimal Optimal Optimal
Adaptive Direct Spatial Spatial Spatial
Motion Estimation U M-H U M-H U M-H
Subpixel ME 10 10 9
Partition Types Most Most Most
Trellis 2 2 1
No DCT Decim. Off Off Off
Adaptive Quant. 1.1 1.1 1.1
Psychovisual RD 1.2 1.2 1.2
Psychovisual Trelli 0.1 0.1 0.1
Code: Select all
PSNR Mean
Setting A SSIM Mean Y U V Avg Global kb/s Size (MB) FPS
Planet Earth 0.9738864 41.463 44.227 48.004 42.431 41.387 13,012.08 184.9 4.21
Avatar 0.9811149 42.984 46.804 48.029 43.999 43.722 7,850.84 144.8 5.79
PSNR Mean
Setting B SSIM Mean Y U V Avg Global kb/s Size (MB) FPS
Planet Earth 0.9739075 41.47 44.235 48.013 42.438 41.393 13,032.46 185.2 4.34
Avatar 0.9811456 42.99 46.812 48.037 44.006 43.729 7,850.05 144.2 6.17
PSNR Mean
Setting C SSIM Mean Y U V Avg Global kb/s Size (MB) FPS
Planet Earth 0.9738340 41.546 44.273 48.022 42.506 41.499 13,335.18 189.4 12.24
Avatar 0.9813229 43.103 46.939 48.137 44.120 43.843 8,321.83 152.7 13.39
The FPS column in the above results is the speed at which HandBrake was able to transcode the scenes, obviously, that number is going to be different for everyone depending on your encoding machine. For the sake of comparison, I’m running a 2.8Ghz x 8 Mac Pro from early 2008 with 6GB of RAM.
The settings I intend to use for my own movies will be something like the above Setting C. Setting subpixel motion estimation at 10 is a CPU killer and I’m willing to forgo 2%-6% of additional file size in exchange for 200%-300% encoding speed gains when the resulting video quality in all situations is ideal for my purposes.
-Berylium
Re: Apple TV 2
Also looking forward to the presets to use with my new Apple TV2 and Handbrake.
If possible to post the plist-file here for use in PAL systems.
I need good HD converts for my DVD's with Dolby 5.1
Thanks !!
If possible to post the plist-file here for use in PAL systems.
I need good HD converts for my DVD's with Dolby 5.1
Thanks !!
Re: Apple TV 2
DVD and HD are mutually exclusive.wvy wrote:I need good HD converts for my DVD's with Dolby 5.1