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MP4 videos on Apple TV or Ipad

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  • User profile image
    MSX3

    I just tried the mp4 high quality videos from MIX 11 on my Ipad and Apple TV and the playback is choppy. Has anyone else experienced this?

  • User profile image
    Charles

    @MSX3: probably best to just download them first. Can you do that on an iPad? Smiley

    C

  • User profile image
    Jct

    Any news on this? I have the same problem on iPad2, with the file downloaded, so not a streaming issue.

  • User profile image
    CPalm

    I got the same problem on IPad 2. Very choppy

  • User profile image
    CPalm

    BTW The same problem with Azul Media Player on IPad 2 Sad

  • User profile image
    blaklite

    its not just Apple products, something is screwy with all of the MP4 files.

    Im getting the same results on VLC/WMP on WinXPx86 and Win7x64.

  • User profile image
    BillCo

    Same problem here on iPad using builtin video viewer. Anybody home at channel9 to deal with this problem?

  • User profile image
    aoliveira

    I have the same exact problem with tons of High Quality video files from Channel 9 

    I was trying to watch  NYC DevReady 2011 videos (the only High Quality option is MP4) on my iPad, the audio is perfect, but the video won't show up or is really choppy. Playing it on the Quicktime X on the Mac same results
    VLC on the Mac, same results.

     I even tried using Handbreak to re-encode the files, but no luck.

     

    I wish I could fix all my 5gb of download, specially because the content is awesome!

  • User profile image
    BillCo

    Same problem here with ALL of the "High Quality MP4" videos -- at least all that I've downloaded and attempted to play on iPad. Very disappointing. It'd be interesting if someone from Channel9 were to respond to this problem!

    Perhaps it's an MS plot to devalue the iPad Smiley.

  • User profile image
    Duncanma

    @BillCo: It is strange, we do have a few people with iPads in the office and we had them test the videos from both our regular productions and from MIX 11 ... and they said the video played smoothly without any issues.

    I'm not doubting that there is an issue, but we haven't tracked it down. We haven't tested them on the Mac, but I will get that done as well. To confirm, does everyone have a problem playing the high quality MP4 from this recent show: http://channel9.msdn.com/Shows/SilverlightTV/Silverlight-TV-74-Whats-New-in-RIA-Services

    That url would be: http://media.ch9.ms/ch9/0811/8c628380-7bff-4e93-995b-9ee901460811/sltv74_high_ch9.mp4

    Let me know the process you followed to test the file (download local, open in Quicktime ... click on the link in the browser on your iPad... download local then copy to iPad using iTunes... etc...) and that way we are all testing the exact same scenario.

  • User profile image
    mnikoo

    @Duncanma: Yes there is a problem with playing back high quality MP4, just tested the one you pointed to on iPad2 and the problem persists, regardless of the playback mode (streaming / downloaded). The low quality MP4 plays with no problem but the source code is not readable at that quality level. I tried this in Downcast - one of the podcast client apps, which is using the iOS native API to playback the video.

  • User profile image
    Duncanma

    @mnikoo:Ok, I will get some people to try this. I personally don't have an iPad available, but I will find someone who does.

  • User profile image
    pofo

    I've had the same problem too. I downloaded the mp4 (iPad & WP7) version. It plays fine on the mac but not on my iPad. I tried converting via Handbrake, PunyVid, Evom, Elgato Turbo.264 as well as converting to AVI but VLC on iOS chokes on it.

    I have finally found something that works though. I opened the original mp4 in QuickTime 7 and exported it to AppleTV settings and that will play properly on the iPad. But you need QuickTime Pro though. For some reason the exporting in QuickTime X doesn't work on these files. I can't explain it. Hope this helps though.

  • User profile image
    igrali

    The same problem here on an iPad iOS 4.2.1., played directly in Safari browser.

    Also tried downloading with another browser and playing - the same problem - choppy video playback.

    I hope someone releases a fix of some kind Smiley

  • User profile image
    bog

    Are there any updates on this issue?

    I'm trying to view the Advanced STL series with VLC. All high-quality MP4s up to episode 6 have the issues described in this thread. Strangely enough, with the latest episode (six), the high-quality WMV doesn't work in VLC anymore (freezes), but the high-quality MP4 is fine.

    I would really like to have all these episodes in the same format, preferably MP4, and, of course, I'd really like to not have to download both high-quality versions to see which one actually works in VLC...

    Anyone care to let us know what's going on?

    Cheers.

  • User profile image
    bog

    The last answer on this issue was more than two months ago. Any news?

  • User profile image
    blowdart

    Strange, I'm trying it this morning at home on my iPad 1.0 - the Mix11 keynote seems to work fine, aside from the initial stutter for buffering. But then I have a stupid connection speed.

  • User profile image
    bog

    Some newer ones seem to work fine, indeed, but I think we should have a solution for the older ones as well, especially when they're part of a series - the STL ones, as mentioned above, for example.

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