"new Ipad" (3) , how do I get highest quality demo video on it ?

[Justin O'Neill]

So looks like we can go higher with the data rate.

I will try rendering at 2560 shortly. Here is one of my tests at 75% quality: http://dl.dropbox.com/u/5673574/retinga-16x9-75.mov

I will switch to Mbit/sec now that I am getting the hang of this.

[Justin O'Neill]

I'd like to know if the audio plays correctly along with the video.

Sounds and plays great!

[Andrew M.]

If anyone has an free moment, could one of you try playing this video on your new iPad? http://www.brianiannone.com/scratch/...on-it/POM1.mov

I'd like to know if the audio plays correctly along with the video.

Playing it perfect, no drop frames 14MBits/sec stream even when upscalled to 2048 or original pixels count.
Sound is good too.

[Andrew M.]

I will try rendering at 2560 shortly. Here is one of my tests at 75% quality: http://dl.dropbox.com/u/5673574/retinga-16x9-75.mov

I will switch to Mbit/sec now that I am getting the hang of this.

Justin, I don't know how you decoded it but it peaks to 88MBits/sec.
I don't know if I am getting all the frames since it is too short clip.
Can you do the same but bit longer including pan sequence please.

Give me 100-150 MB of this file at the same quality (75% you said?)

[Andrew M.]

Can anyone get this 2560 file to play on the new iPad? Maybe through Dropbox or something?

http://red.cachefly.net/TimeScapes4K2560p.mp4

Tom, can you encode the same in MPEG-4 instead of H.264 for the set speed of 50MBsec or so?

[Brian Iannone]

Playing it perfect, no drop frames 14MBits/sec stream even when upscalled to 2048 or original pixels count.
Sound is good too.

Well, that's impressive. Therefore, the new iPad is capable of playing H.264 with an LPCM audio track. That's LPCM!

Wow.


EDIT:
By the way Andrew, what app did you use to play the file?

[Andrew M.]

I use the player that DropBox is invoking to play.
Since DropBox is dated Nov, 2011 Ver 1.4.6 I don't think the player is part of the DropBox.
DropBox is probably using run command for specific extenssion of the file .mov or .mp4 and I think iPad does the rest.
But I have seen all the overimposed lines on the sample above here so if it is standard player of iPad3 the player must be supporting 2048 mov files?

[Justin O'Neill]

Andrew, here is one I rendered at 32Mbit/s. It plays fine at first but then bogs down at the start of the pan then plays fine. I think the limit must be slightly under that. http://dl.dropbox.com/u/5673574/retina-32Mbit.mov

[Andrew M.]

Justin, it plays perfectly smooth at full 32MBits/sec.
I use DropBox to invoke the file for playing and what I am reading on the net DB is using iPad3 (or any other default iPad) .mov player.
I just wonder if iPad3 when playing the video file with the default (resident) mov player is not converting your MPEG4 to some other format that is more iPad GPU friendly format.
Whatever it is doing we should not be concern since we know that iPad3 plays all the pixels when width is set to 2048.
We also see that at 32MBs it can play/convert/decode/whatever at real time and I do not see any visually noticeable dropped frames during the pan.
Also I did try my old laptop Dell XPS with GeForce 8800M GTX to play your 32MBsec file and laptop is not playing as smooth (your 32MBits/sec file) as iPad3 when pan is at the mid point to the left, I see noticable few dropped frames on my old Dell.
As far as I remember 8800M GTX is playing mov files with acceptable quality up to 50MBsec and without any dropped frames up to 15MBsec.

So iPad 3 when it comes to playing video .mov files is better than 8800M on dual core 2.8G Intel X7900 based Dell computer and Dell screen is only 1980 not 2048 :-)
Not bad at all.

Do you want to push farther to 50MBsec?

I have all aps closed on my iPad3 including cell wireless that I disabled. Only WiFi is enabled.
64GB memory and I wait till all the files are loaded in before playing the video file.

[Justin O'Neill]

Interesting! I will have to try it in the DropBox app. REDcine-X isn't letting me render at anything higher than 32Mbits/s for some reason...if I set it at 50 it goes back to 32. Weird.