Broadcast quality uncompressed video to Keynote solution???

Question

World,
I would be really grateful if someone would help. I've done a lot of searching and cant find a definitive answer. I am looking to design a solution for generating the best quality video output through Keynote.
I am used to making slide presentations using Powerpoint/Keynote, with video output from an alternate device. My objective is to output highest quality video of around 5-6 minutes.
Most projectors are 1024x768. (Although I understand many projectors now are WXGA at 1280x800).
If I have a budget I use a professional operator and request SPBeta or a DigiSP, Pal player. In most cases however there is no money to spend and so I use a DVD player. In both cases the video is of course 720x576 (Pal).
I have the video source files as uncompressed broadcast quality, captured with various codecs, eg "Blackmagic 10 Bit, Integer (Big Endian)".
What I want to understand is whether I can compress the video files and run it through Keynote in a way that will not compromise the quality.
1. What quality is achievable?
Using a MacbookPro for output, what quality is achievable, when compared to what I am am familiar with from a) DVD and b) broadcast quality player? Assuming the same decent quality XGA projector.
When I first looked at this some years ago, there were some resolution conflicts using slides and video in Powerpoint.
But it seems to me that things have moved on and I should be able to get a comparable quality video image from the Mac, as compared to using a player. Better even (???). Good as DVD?? Good as a broadcast quality player?? Is this correct?
One of the issues that may have some impact (the impact of which I don't fully grasp) is that normally a video projector will require a change of the input "source" setting from "data" to "video" for the different outputs which presumably changes the resolution from 1024x768 to 720x576. Depending on the "source" setting.
Whereas with the solution I am seeking to plan here, I am channelling a 720x576 resolution video (however it may be compressed) into Keynote, which is outputting it at 1024x768 (to match the data/slides output resolution). That sounds really problematic and a quality killer to me. But perhaps Keynote does this well (???). Perhaps there is a conversation tactic that I can adopt to solve any issues.
So, then, which if any compression should I use, what compression format etc? I don't care about cost (give or take a few hundred) or hard disc space. I am looking to design the best solution. Using a MacbookPro as engine. I am not looking for a solution that will work "OK" or look "pretty good". I am looking to design the best solution to get the best output of the video.
But really I suppose I am trying to understand whether it is time to definitively get rid of the DVD player because I should be able to achieve that quality, definitely, as a minimum ????).
This seems like one of those things that is really easy if you're working in the space all the time. But hard to work out if you're coming at it from the purely "technical research" angle, as I have been.
Any help or advice would be GREATLY appreciated!!
Stephen

Answer 1

What is your source material?
Remember that the Hollywood films are mostly shot on film at 24 fps. The film is then scanned in at an amazingly high resolution. The online H.264 files are compressed from that and at 24 fps.
Let's compare that to DV, for example. Not only are you starting with far fewer pixels, you're working with 60 interlaced fields. That often gets turned into 30 frames per second for the online file.
So you've got two problems here: 1) Fields combining won't be as good looking as starting with a progressive format and 2) by having 30 fps instead of 24 fps you're going to have a larger file size even with the same settings!
Ok, so maybe you're working with HD video. You're better off, but it's still not even close to the same resolution. And unless you're working with some kind of 24p format that you've properly converted, you're still dealing with 30 fps. (Many 24p modes on cameras are actually recorded at 30 fps, and have to be properly converted later.)
I don't know if any of these things apply to you or not, but hopefully it's given you some clues. The bottom line is, this IS a "garbage in/garbage out" situation, even though your video is not "garbage." It just means that you're fighting an uphill battle here by comparing yourself to something that started at a much higher resolution to begin with. That makes a difference, even when everything is shrunk down to the same size in the end. (And that 24 vs. 30 fps thing is a big thing too.)