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Old 17th November 2008, 19:49   #3  |  Link
Neillithan
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Join Date: Feb 2007
Posts: 124
Wow. Okay you answered pretty much all of my questions and I'm actually shocked to know the answers.

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No, it won't play any of them, because it requires Level 4.0, not Level 4.1. Now, if a specific implementation of the DivX spec in a player doesn't actually check the header and simply tries to play it anyways, odds are many encodes will work, but since the spec doesn't say to do so, there's no guarantee it'll work on anything.
Divx 7 only plays High@4.0? Wow. That's hardly an goal worth the effort. That's like trying to shoot a target with nuke, there's no way to miss.

So, by not being able to play 90% of existing .mkv files, DivX is making a huge mistake. They're going to fool people into thinking .mkv is a DivX extension and sooner or later DivX will be rife with complaints of playback issues. At least, this is what I forsee. I could be wrong.

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MKV is already standardized; the bitstream spec was frozen long ago.
By standardizing .mkv, I used the wrong word. What I'm trying to say is, right now .mkv is unpopular, unsupported and pretty much unknown. If you want any kind of real compatability with devices, you have to use .mp4 or .m2ts for Blu Ray players. DivX will finally popularize the .mkv file format but instead of bringing light to it they will bring darkness, at least that is what I gather from your response.

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H.264 High Profile Level 4.0, max 3 B-frames, any resolution 1920x1080 or below that's mod8 (note: interlaced resolutions are limited to a few specific values, progressive are not). Framerates 23.976, 24, 25, 29.97, and 30 are allowed. None of this is final, nor complete.
My comment about what compression settings DivX 7 will offer, I was curious if they're offering anything new? Will DivX HD videos offer some kind of superior compression algorithms to churn out every last detail or will they simply add partial AVC playback?

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H.264 is a spec, a spec can't be "open source." Perhaps you mean "x264 is an open source implementation"?
I guess when I refer to H.264 being open source, I really mean AVC. AVC is open source, right?

Thanks for your fast response,
-Neil
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