Playback of 1080p60

[zharikov]

What about 1080p60 video, like Sanyo camcorders are able to record? It is 1920 X 1080 60 full progressive frames per second, packed to mp4 container with h.264 codec with very high bitrate. The sample file of such video can be found on some reviews of the camcorder.

What hardware and software can playback it without frame or quality loss?

 

[abhishekk89]

Any 48xx series graphics card is able to play the video smoothly....
and of course the big brother nvidia also has some cards in its kitty....

As for the software there are many players which render it with the assistance of suitable codecs

 

[zharikov]

1) It has so high bitrate that not every hard drive can provide it. I tried to play it on my laptop - hard drive performance seems to be a first bottleneck! Camcorder uses SDHC flash cards with strict requirements for the speed to avoid this bottleneck.

2) Monitor with the refresh rate of 60 Hz might not properly show 60 full frames per second, when every point of the monitor can completely change with every refreshment. What if the frame frequency would be slightly different from refresh rate? Would hardware / software syncronyze them or just drop frames?

3) Windows itself can be a problem. People report in the Internet that for some reason they were able to achieve smooth playback of such video only under Linux. They trace this issue to the Windows driver model and unpredictable delay issue under Windows.

4) Drivers and playback software might not even support such mode as 60 full frames per second in 1080. This mode is not even the part of BluRay or AVCHD specifications. Besides, the container and bitrate are not exactly standard too. Playback software might not be able to provide hardware acceleration for such odd format.

5) Finally, on many platforms USB bugs would not let you even copy gigabyte size files from flash card to the hard drive without CRC errors. These bugs are the bugs in USB protocol itself, they do not depend on the operation system, flash card, hard drive, USB cable, CPU, they exist on the wide range of both Intel and AMD platforms.

I understand your point that new videocards are in theory powerfull enough for such job. But do you have any information about the actual experience of playing on the computer the 1080p60 video that was recorded on new High Definition Sanyo camcorders, like Sanyo Xacti VPC-HD2000 Camcorder?

 

[abhishekk89]

I seriously have not played any such video to be frank... all i can quote is from theory and not from my practical experience..