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How is the playback of your PS3 concerning 1080 50p/60p files?

post #1 of 9
Thread Starter 
I don't have issues with mine but I'm wondering what the statistics would be. Maybe it depends on the model of your PS3. This is assuming you have at least firmware 3.15.

Their are files that you can download here if you don't have the camcorder.
http://vimeo.com/groups/native1920x108060pclips/videos
The ones within a week are guaranteed to be native.
post #2 of 9
I have a few observations I wish to share so we can all be consistent in testing. I have the fat PS3 80GB model in North America format, so I downloaded native 1080/60p clips from Vimeo in the .MTS file format. I copied the file from the USB stick to the PS3 hard drive to ensure best access. The best clip to test for playback problems is the "Alumapalooza" clip on Vimeo. Here we have the subject talking so we can clearly see the audio sync/playback issues. The clip is here: http://vimeo.com/10706438

Now here is the interesting thing. My TV supports all resolutions to a maximum of 1080/60p. Therefore, I set my PS3 HDMI output to "Automatic" After the handshake, the PS3 outputs the .MTS in its native resolution AND framerate. The result is the clip loses audio sync after a few seconds. HOWEVER... If I set my PS3 settings to HDMI output maximum of "720p" then something surprising happens. The native .MTS file is downscaled by the PS3 to 720p. My TV has a native resolution of 1080p, and it upscales everything to that format, so if I check the TV information, it says it is displaying 1080/60p. So, do not be fooled into thinking that your PS3 is playing smooth video unless it is set to 1080p maximum HDMI video resolution AND your TV is NOT performing any upscaling.

I have also tried re-encoding the test clip with Sony Vegas Pro. If I keep the bitrate BELOW 24Mbps thent he file plays without issue. If I re-encode at anything greater than 24Mbps, the the PS3 loses audio sync.

All this leads me to believe that the fat PS3 is not capable of playing an AVCHD file of greater then 24Mbps bitrate (which would be resonable according to AVCHD spec). It is possible that if you have a slim PS3, a higher bitrate is supported, or that the slim PS3 is actually downconverting to 720/60p to compensate for not being able to play the file of greater than 24Mbps bitrate.

When I insert a video analyzer box in the HDMI chain, I note that the fat PS3 plays the native Panasonic footage with loss of audio sync, but zero frames are dropped. On the slim PS3, frames are dropped, so I don't know if the PS3 is internally doing this or if there is downscaling happening. At any rate, the slim PS3 in North America seems to be altering to stream to be playable although this means that it is not actually the native footage bit for bit.

My conclusion so far is that the only way to watch bit-perfect 1080/60p footage from the Panasonic is to play it back on a good computer, or to play direct from the camcorder itself. If you wish to use Windows Media Player, you can install CCCP codec pack or K-Lite Basic codec pack. Both allow superb bit-perfect playback on a dual core machine of at least 2.2 GHz. Of course Windows 7 does not need any codec packs.
post #3 of 9
Quote:
Originally Posted by Outer Marker View Post

If you wish to use Windows Media Player, you can install CCCP codec pack or K-Lite Basic codec pack. Both allow superb bit-perfect playback on a dual core machine of at least 2.2 GHz. Of course Windows 7 does not need any codec packs.

Outer Marker, are you saying that you can get a dual core to play 1080p Panny files smoothly?? I haven't been able to accomplish that yet, that feat is handled by my I7 processor. Just a note, I converted my dual core system to Windows 7 and it plays with it the typical stuttering or hesitation.
post #4 of 9
Yes, although I have Windows XP SP3. My laptop plays the 1080/60p MTS files without skips, stutters or audio problems. It is a Dell Latitude 2.2GHz dual core machine with 2GB memory. CPU usage on both cores is steady at 92 - 97% in task manager during playback. I use Windows Media Player 11 with K-lite codec pack (Basic Version). I do not have any other media players installed.

My video editing desktop is a dual core 3.0 GHz machine overclocked to 3.83 GHz. Same set up with WMP11, K-Lite codec pack, Windows XP SP3. This time CPU usage is only 76% during playback.

My point was that Windows 7 (WMP12) plays back MTS files natively, without codec packs, I believe, but I can't speak to the playback results as I don't actually have anything running Windows 7 yet.

Edit: I notice the latest version of K-lite codec pack includes a Windows 7 codec tweaker. Perhaps that would help you? I would recommend all the usual backup precautions though as tweaking Windows 7 may still be "new" uncharted territory.
http://www.codecguide.com/windows7_p...er_tweaker.htm
post #5 of 9
On my 360 using WMC connected to my Win7 machine(wired), I am also not able to play without stutter in video. I was surprised to see that WMC saw the files and played them correctly from my 360 though, even if there is frame loss. I haven't tried to downres them yet, due to lack of correct editing software. I'll be picking up the new PremierePro in May when it's released for that. I'm going to try a 60i file and see how that does, because it's only 17mb/s.

My main issue is wanting to get the videos to play correctly from my computer without having to copy to usb sticks or playing directly from the camera.
post #6 of 9
Thread Starter 
Here's a post that I read. When I added the picture adjustments, my audio was worse.
http://www.avsforum.com/avs-vb/showt...=#post18475254
So for the people who have issues, try disabling them and tell us if it did anything.
post #7 of 9
Quote:
Originally Posted by Outer Marker View Post

I have a few observations I wish to share so we can all be consistent in testing. I have the fat PS3 80GB model in North America format, so I downloaded native 1080/60p clips from Vimeo in the .MTS file format. I copied the file from the USB stick to the PS3 hard drive to ensure best access. The best clip to test for playback problems is the "Alumapalooza" clip on Vimeo. Here we have the subject talking so we can clearly see the audio sync/playback issues. The clip is here: http://vimeo.com/10706438

Now here is the interesting thing. My TV supports all resolutions to a maximum of 1080/60p. Therefore, I set my PS3 HDMI output to "Automatic" After the handshake, the PS3 outputs the .MTS in its native resolution AND framerate. The result is the clip loses audio sync after a few seconds. HOWEVER... If I set my PS3 settings to HDMI output maximum of "720p" then something surprising happens. The native .MTS file is downscaled by the PS3 to 720p. My TV has a native resolution of 1080p, and it upscales everything to that format, so if I check the TV information, it says it is displaying 1080/60p. So, do not be fooled into thinking that your PS3 is playing smooth video unless it is set to 1080p maximum HDMI video resolution AND your TV is NOT performing any upscaling.

I have also tried re-encoding the test clip with Sony Vegas Pro. If I keep the bitrate BELOW 24Mbps thent he file plays without issue. If I re-encode at anything greater than 24Mbps, the the PS3 loses audio sync.

All this leads me to believe that the fat PS3 is not capable of playing an AVCHD file of greater then 24Mbps bitrate (which would be resonable according to AVCHD spec). It is possible that if you have a slim PS3, a higher bitrate is supported, or that the slim PS3 is actually downconverting to 720/60p to compensate for not being able to play the file of greater than 24Mbps bitrate.

When I insert a video analyzer box in the HDMI chain, I note that the fat PS3 plays the native Panasonic footage with loss of audio sync, but zero frames are dropped. On the slim PS3, frames are dropped, so I don't know if the PS3 is internally doing this or if there is downscaling happening. At any rate, the slim PS3 in North America seems to be altering to stream to be playable although this means that it is not actually the native footage bit for bit.

My conclusion so far is that the only way to watch bit-perfect 1080/60p footage from the Panasonic is to play it back on a good computer, or to play direct from the camcorder itself. If you wish to use Windows Media Player, you can install CCCP codec pack or K-Lite Basic codec pack. Both allow superb bit-perfect playback on a dual core machine of at least 2.2 GHz. Of course Windows 7 does not need any codec packs.


This is interesting and thanks for testing. This might explain why I have no issues playing back the files on my launch PS3 slim. I have a 1080i/720p 50" PDP, and I suppose the slim might be down converting the files since my PS3 settings are set to 1080i max.

The videos still look excellent, but this could explain why some are having issues.

Paulo, I have those settings disabled on my slim. I always have, but that is a good link/suggestion for others to try.
post #8 of 9
Quote:
Originally Posted by Paulo Teixeira View Post

Here's a post that I read. When I added the picture adjustments, my audio was worse.
http://www.avsforum.com/avs-vb/showt...=#post18475254
So for the people who have issues, try disabling them and tell us if it did anything.

I meant to mention before that it didn't help for me. With the newest PS3 update, my playback is now stuttery and adjusting the playback parameters didn't help.

Playback from the cam is always reliable.
post #9 of 9
Quote:
Originally Posted by Paulo Teixeira View Post

Here's a post that I read. When I added the picture adjustments, my audio was worse.
http://www.avsforum.com/avs-vb/showt...=#post18475254
So for the people who have issues, try disabling them and tell us if it did anything.

Oh my goodness! This is a perfect example of why default settings are very rarely the best settings. I turned off all the suggested noise reduction options, and low and behold, smooth 1080/60p playback of the native .MTS Panasonic files. No audio sync issues, no stuttering, no problems! This is simply outstanding.

In fact, I would go so far as to recommend that noise reduction settings always be set to off, because video actually looks sharper now. Most likely the noise reduction algorithms add a subtle smoothing which is not necessary in my case. I'm not playing back any noisy or grainy material.

Thanks for pointing me in the direction of that post, Paulo, and thanks to Dipak, the original poster of this information!
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