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h264 slowness

Watching the batman trailer at 1080 hi def on a 23 inch screen is amazing.

Although when the actual size is bigger than my 23 inch screen

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and when its made larger fits only about a forth of it.

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now thats crazy :eek: :eek:
 
The difference seems to be that you absolutely need a G5 for 1080 (the download file) but can get away with a high end (or dual) G4 for 720 (the streaming file).

Now if I could only save that 720 streaming trailer of Serenity. Stupid Quicktime 7 Pro.
 
I don't know what you're talking about requiring a 1.8ghz G5 or faster: it is working on my 1.6ghz G5 powermac, so there.
Right now, as a matter of fact, I am encoding a DVD into H.264. I'm hoping to see a major gain in quality over divX, as it is taking about four times longer to encode.
 
I thought the great thing about this standard was how well it could be scaled from cell phone size to full screen. My "crappy" iBook 1.2 ghz w/ 768mb can't play these smoothly... I'd like to see a low res video and see how well it upscales.
 
Holy ****... Couldn't even fit a 23" display??? Thought the 23" is a HD display? You telling me those "1080" movies are actually even BIGGER than normal HD?
 
If you are a HD content producer, you'll actually need a 30" display or larger, to fit in the video at 1:1 ratio, and enough room for palettes, etc. 23" is barely large enough.
 
motulist said:
So, if I'm understanding this correctly, Apple released a codec that ABSOLUTELY NO Apple portable computer can decode? That sounds really bad. Either Apple's entire line of portable hardware products seriously suck, or Apple is putting out a software product that is entirely out of line with what should be released. Or maybe I'm missing something.
Click to expand...

Yer missing the obvious. You trade power for portability w/a laptop. Saying a laptop should be able to do everything a desktop can, and just as well, isn't realistic.


Lacero/ said:
If you are a HD content producer, you'll actually need a 30" display or larger, to fit in the video at 1:1 ratio, and enough room for palettes, etc. 23" is barely large enough.
Click to expand...

If you are producing HD content you'll play it out to an HD b'cast quality monitor. No need for full screen playback in one of your computer monitors (it's just a waste of space).


Lethal
 
For those of you having really jerky playback, remove any divx, xvid, and/or 3ivx codecs you have installed. Apparantly they all cause havoc with QT7 for now.
 
Hmmm, so if just a Dual G5 can play back 1080p at a desirable frame-rate what are they going to do with the DVD players out there, since H.264 is an official codec?
"Get it now, the first DVD player with a liquid cooled Dual G5 that will look horrendous in your living room" :D
 
Diatribe said:
Hmmm, so if just a Dual G5 can play back 1080p at a desirable frame-rate what are they going to do with the DVD players out there, since H.264 is an official codec?
"Get it now, the first DVD player with a liquid cooled Dual G5 that will look horrendous in your living room" :D
Click to expand...

A dedicated chip would play it back fine. Part Apple's thing is that you don't need any additional hardware (if yer Mac meets the specs).


Lethal
 
LethalWolfe said:
A dedicated chip would play it back fine. Part Apple's thing is that you don't need any additional hardware (if yer Mac meets the specs).


Lethal
Click to expand...

Thanks.
So I guess if the specs in the entire lineup are not good enough to play back HD by the time these movies are put on discs Apple needs to put a dedicated chip in or else only powermacs and imacs will be able to play HD...
 
I suppose this puts a damper on the chances of HD displays for powerbooks, you know, if there is no point.
 
The trailers play smoothly on my Dual 1.25 G4. (though I've only played 1280x720... - Also, I have a Radeon 9800 Pro video card)
 
Diatribe said:
The decoding is done through the CPU so the graphics card shouldn't matter.
Click to expand...
I thought the video card might matter in keeping up frame rates or something to that effect.

From Apple's site:

For 1280x720 (720p) video at 24-30 frames per second:
1.8 GHz PowerMac G5 or faster Macintosh computer
At least 256 MB of RAM
64 MB or greater video card

For 1920x1080 (1080p) video at 24-30 frames per second:
Dual 2.0 GHz PowerMac G5 or faster Macintosh computer
At least 512 MB of RAM
128 MB or greater video card

The difference in the video card requirements probably means that the video card does make a difference, but who knows how important the video card is for playback. Maybe it's only important for player resizing, etc.
 
The Tiger streamed seminar is sound only on my G4 imac the video is running at about 3 fps and lags way behind the audio, unwatchable. This is not good for a demo designed for ALL Tigers users, not just those with G5.
 
looks good on my rev A 17" PB.

Dunno what all the fust is about. The batman trailer isnt choppy at all.

I will however be waiting until the G5 PB's come out someitme this decade before I upgrade. I want my next PB to be able to handle anything Tiger throws at it :D including the ability to host 4 way vid chats...though i dunno 4 ppl with isights :D
 
Right, I've installed Virex as suggested in another thread and it makes a huge difference, its not perfect but much better. I would advise all who have had Virex installed at some point to unistall it for much improved performance.
 
Some people really aren't getting the big picture here.

First, the clips that some people are complaining about are HD clips. Keep that in mind. Do you actually comprehend what it takes to do full quality playback of HD video? These aren't the little 320x240 video clips that we're used to downloading from the internet, folks. You have to be crazy to expect a lot of older hardware to be able to play these things. HD video isn't about shoestringing the stuff into old hardware, it is about creating video content for new hardware and the future. When DVD came out, could you just pop it into any old CD player and expect it to play? No. It was new technology that required bigger and better technology to take advantage of it. Same with HD video content. Anybody who is pissed at Apple because they aren't making HD video play on your old 1GHz G4 processor simply does not understand the situation.

As well, H.264 does not equal HD video. They aren't the same thing. H.264 is a new version of MPEG4 that can be scaled from small video and file sizes up to high definition video. H.264 makes it possible to easily present HD video in file sizes sane enough to distribute over the internet or other means, but that is not H.264's sole purpose. For example, I just last night encoded a music video off of a DVD into H.264. Using H.264, I ended up with a video that was 640x480 and 55MB in size, compared to the old version of the same video encoded in MPEG1 that was 320x240 and 88MB in size. While H.264 can be used for HD video, it can also be used for things like that where you want bigger resolution, better video quality, and smaller file sizes for non-HD content.

Finally, to hit the point again, anybody who is wanting Apple to "fix" H.264 video, especially HD video, to work on older computers does not understand the situation. H.264 is not Apple's codec, for starters. Beyond that, "fixing" it would defeat the entire point of H.264. The purpose of the codec is to get better quality video files than what we had before. To achieve that, better hardware is required. If you want to dumb down H.264 to play on any machine, then just use an older, less capable codec instead.
 
sirlethean said:
For those of you having really jerky playback, remove any divx, xvid, and/or 3ivx codecs you have installed. Apparantly they all cause havoc with QT7 for now.
Click to expand...

where did you read that and how can i remove those codecs
 
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