ASUS Eee Pad Transformer Prime & NVIDIA Tegra 3 Review
by Anand Lal Shimpi on December 1, 2011 1:00 AM ESTVideo Playback: Blu-ray Quality in a Tablet
One of the biggest issues with Tegra 2 based tablets and smartphones is a limitation that prevented hardware accelerated decode of any high profile H.264 video content. You could still decode the video but the additional stages of the decode process were left to run on the CPU, which in turn resulted in substantially lower battery life. NVIDIA has completely addressed the problem with the Tegra 3's video decoder, which is now capable of decoding 1080p H.264 high profile streams at up to 40Mbps.
The Honeycomb video player (Gallery app) will play .mkv files by default but if you want to throw on a .m2ts file you'll need to grab a third party player. DICE Player for Android supports Tegra 3's hardware acceleration, making it a good option if you want broader file compatibility.
Android File Transfer won't push over a file greater than 4GB so the first thing I tried was ripping a portion of A Quantum of Solace (BD) and sending over a 40Mbps High Profile 1080p MKV of it. The resulting 10 minute segment was 2.8GB in size and played beautifully on the Prime. There were no dropped frames and no hiccups, it just worked.
External NTFS volumes are supported and the sdcard file system supports files greater than 4GB in size, so I copied a 15GB 1080p Blu-ray rip of A Quantum of Solace from a USB stick to the Prime. I had to use DICE Player to get audio but otherwise the clip just worked. The biggest pain was copying the huge file across, but it'd be quicker and less painful than a re-encode on most systems.
To really test my luck I threw a few of our media streaming test files at the Prime. Our 720p60 test file worked perfectly, while our 1080p60 test case was mostly smooth with the exception of occasional slowdowns. I tried playing back a 1080p30 VC1 file however I couldn't get it to play back with hardware acceleration. Some of the more exotic combinations of features and file types wouldn't work, although I suppose that could be the fault of the playback software.
As far as I can tell, Tegra 3 and the Eee Pad Transformer Prime in particular are capable of playing back 1080p24 Blu-ray class video. Total NAND capacity is the only thing limiting us from just dumping a raw Blu-ray rip onto a tablet and playing that directly. Pretty much any HD rip you make yourself or find online will likely work. You may still need to invest in a good third party player to ensure things like subtitles are properly supported however.
I'm pleased with the state of video on the Prime. It's not HTPC level, but we can finally play really good quality video on an Android tablet. I suspect it'll be one more generation before we get tablets (and associated software) that will just play anything you throw at them.
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medi01 - Thursday, December 1, 2011 - link
So am I.But as I recently discovered, it's much easier to switch on tethering on my phone and connect via wi-fi than to swap sim card between devices..
It was hard for me to justify having 2 internet enabled sim cards, but it might be just me.
Kegetys - Thursday, December 1, 2011 - link
I find tethering to be a huge battery drain for the cellphone and it's usually not that practical either for anything else than occasional "emergency" use. But I have three sim cards from my carrier all with unlimited use anyway so I dont need to do any sim swapping. I guess if you need to pay extra for that then tethering is a reasonable alternative.MiSoFine - Thursday, December 1, 2011 - link
3 SIM cards with unlimited use for no extra cost? Who's your carrier? I was going to suck it up and pay AT&T the extra money for tethering, but if that's an option, I'll take it!Kegetys - Thursday, December 1, 2011 - link
> Who's your carrier?Saunalahti :)
medi01 - Thursday, December 1, 2011 - link
Hi,could you include "time it takes to fully charge" please?
On samsung tab it takes surprisingly long (about 4 hours) for some it might matter.
metafor - Thursday, December 1, 2011 - link
That's going to be true of any device that standardizes on a USB 2.0 connection -- which I think all Android tablets thus far use; it's just a different connector.iDevices sort of get around this by using a non-standard USB connection (up to 1A vs the standard 500mA) which is why it can charge faster.
It won't be until USB 3.0 becomes more common that charging speeds will really pick up.
Mugur - Friday, December 2, 2011 - link
Well, this is not quite right. My 2 phones have 1000mA chargers through USB even if the standard for pc is max 500mA. My Nook Color has a non standard but downwards compatible USB charger with around 1900mA.I agree though that the tablets recharge time is slow...
anandtech pirate - Thursday, December 1, 2011 - link
the PowerVR SGX 543MP2 is a beast. I still remember waaaay back when powerVR used to make pc graphic cards.Death666Angel - Thursday, December 1, 2011 - link
They still do Intel integrated graphics in the Atom, if I'm not mistaken. :-) They were the supplier of all Intel motherboard IGPs as well, though those aren't around anymore. :DPenti - Friday, December 2, 2011 - link
They were not the supplier of Intel's IGP's, only the Atom US15W/L/US11L one and some (not all) of the Atom integrated graphics in the CPU and in variants of SoC. Intel has made their own graphics since i740. Thus Intel GMA is their own tech. Own drivers. And so on. Only GMA500 and GMA600 (SoC), and newer GMA3600 and 3650, and likely GMA5650 in D2600/2700 is PowerVR. They don't have exactly excellent drivers for Windows and GNU/Linux desktops.GMA3150 is Intel, which runs in the latest Intel Atom N4XX and N5XX series, D4XX and D5XX.