8 replies to this topic

[penestijeras]

Hi all,

I found these mkv videos on a forum (I think avsforum maybe?, sorry I don't remember where). I would like to share with you as I think they are very very useful for testing our 1080p hardware capabilities with the "stronger" known 1080p scene (I think), that is the Birds scene from the Earth movie.
I hope help you all

MEGAUPLOAD LINKS (I am currently doing a mirror to Rapidshare that will be published later
http://www.megaupload.com/?d=FIAGH1UV Bird_20_MBit_ABR___-1.5_MBit_.mkv 52.33 MB
http://www.megaupload.com/?d=2PWGGE7M Bird_22_MBit_ABR___-1.5_MBit_.mkv 57.54 MB
http://www.megaupload.com/?d=0JLIL6BI Bird_24_MBit_ABR___-1.5_MBit_.mkv 62.76 MB
http://www.megaupload.com/?d=14DW8GB6 Bird_26_MBit_ABR___-1.5_MBit_.mkv 67.95 MB
http://www.megaupload.com/?d=DB9SSWHP Bird_28_MBit_ABR___-1.5_MBit_.mkv 73.06 MB
http://www.megaupload.com/?d=45IQNPL1 Bird_30_MBit_ABR___-1.5_MBit_.mkv 78.34 MB
http://www.megaupload.com/?d=R73B5YQ7 Bird_32_MBit_ABR___-1.5_MBit_.mkv 83.55 MB
http://www.megaupload.com/?d=0M68HG2I Bird_34_MBit_ABR___-1.5_MBit_.mkv 88.76 MB
http://www.megaupload.com/?d=AKUXHRBD Bird_36_MBit_ABR___-1.5_MBit_.mkv 93.98 MB
http://www.megaupload.com/?d=EQG11O22 Bird_38_MBit_ABR___-1.5_MBit_.mkv 99.17 MB
http://www.megaupload.com/?d=P4L7FLG1 Bird_40_MBit_ABR_(+-1.5 MBit).mkv 104.4 MB
http://www.megaupload.com/?d=1D4BX1U9 Bird_42_MBit_ABR_(+-1.5 MBit).mkv 109.6 MB

[OA-5599]

It's looking good!

Dropped around 40 frames on Bird_20_MBit_ABR___-1.5_MBit_.mkv.

Dropped around 180 frames on Bird_42_MBit_ABR_(+-1.5 MBit).mkv.

Both with Plex-v0.7.5 on a Macbook Pro 2.2 Ghz C2D with 3 GB RAM and GeForce 8600M GT 128 MB

Is that bad?

[Constm]

It's looking good!

Dropped around 40 frames on Bird_20_MBit_ABR___-1.5_MBit_.mkv.

Dropped around 180 frames on Bird_42_MBit_ABR_(+-1.5 MBit).mkv.

Both with Plex-v0.7.5 on a Macbook Pro 2.2 Ghz C2D with 3 GB RAM and GeForce 8600M GT 128 MB

Is that bad?

How do you measure in Plex how many frames have been dropped?

Konstantin.

[Kent]

Hit 'I' while the video is playing and there's an overlay that slides down from the top of the screen. One of the counters there is dropped frames.

[Constm]

Thanks! I knew there must be some kind of Get Info! ;-)
I wonder how does it count dropped frames. From panel start or from play start? I'll do more "research" later...

K

[oraguru]

Thanks! I knew there must be some kind of Get Info! ;-)
I wonder how does it count dropped frames. From panel start or from play start? I'll do more "research" later...

K

Hi guys

I tested only the first and the last of the movies and on both I had exactly 1 dropped frame, that's all... I tested it on a iMac 24" 3.06GHz with 4GB RAM. I just ordered for the livingroom (and Plex) a Mac Mini 2.26GHz, 4GB RAM, hope that there I'll have around the same results.

Cheers
G

[Constm]

I tested only the first and the last of the movies and on both I had exactly 1 dropped frame, that's all... I tested it on a iMac 24" 3.06GHz with 4GB RAM. I just ordered for the livingroom (and Plex) a Mac Mini 2.26GHz, 4GB RAM, hope that there I'll have around the same results.

You may see more dropped frames, b/c of CPU speed being lower. But even on my Mini 2.0 (2007) all the "normal" HD movies in mkv container are watchable. What iMac do you have? Is it 2009 or prev generation? I'm looking for replacement for my G4 and was holding off till I see benchmarks how ATI card performs in new machines.

Cheers,
K

[cjedj]

What amount of dropped frames indicates good/bad performance? Is there any kind of benchmark to judge this against?

[Riviera]

What amount of dropped frames indicates good/bad performance? Is there any kind of benchmark to judge this against?

It generally just depends over what timespan the frames are dropped. If lots of drops happen in a small period of time it will definitely make the experience worse, but if it's an odd frame getting dropped every now and then it's ok. I get over 100 dropped frames on the birds scene and would say it's still fairly watchable. There isn't really a magic number.
On the other hand I have had videos where the CPU couldn't cope and there were problems with passing the sound through to the amplifier as a result of it. With digital pass through that led to some pretty horrible results as the amplifier was missing parts and could decode properly. I'd say this is a lot worse.