H.264 Profiles

The standard includes the following seven sets of capabilities, which are referred to as profiles, targeting specific classes of applications:

• Baseline Profile (BP): Primarily for lower-cost applications with limited computing resources, this profile is used widely in videoconferencing and mobile applications.
• Main Profile (MP): Originally intended as the mainstream consumer profile for broadcast and storage applications, the importance of this profile faded when the High profile was developed for those applications.
• Extended Profile (XP): Intended as the streaming video profile, this profile has relatively high compression capability and some extra tricks for robustness to data losses and server stream switching.
• High Profile (HiP): The primary profile for broadcast and disc storage applications, particularly for high-definition television applications (this is the profile adopted into HD DVD and Blu-ray Disc, for example).
• High 10 Profile (Hi10P): Going beyond today’s mainstream consumer product capabilities, this profile builds on top of the High Profile—adding support for up to 10 bits per sample of decoded picture precision.
• High 4:2:2 Profile (Hi422P): Primarily targeting professional applications that use interlaced video, this profile builds on top of the High 10 Profile—adding support for the 4:2:2 chroma subsampling format while using up to 10 bits per sample of decoded picture precision.
• High 4:4:4 Predictive Profile (Hi444PP): This profile builds on top of the High 4:2:2 Profile—supporting up to 4:4:4 chroma sampling, up to 14 bits per sample, and additionally supporting efficient lossless region coding and the coding of each picture as three separate color planes.

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I found these tutorials on YouTube by a random search. Some seems weel-done and useful. Thanks to the makers of these videos.

MediaCoder Tutorial

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Since build 4075, MediaCoder is able to load a RSS feed and queue up all its entries, just like adding a disk folder. For example, we can easily find a RSS feed button on YouTube like this:

Simply drag the RSS feed button or link into MediaCoder, and you will see this: Read the rest of this entry »

Before we start, there are several things you need to make sure.

1. You have installed/upgrade to MediaCoder 0.6.1.4110 or later
2. You know how to set-up all the parameters of MediaCoder. At least you know how to convert a video file on your HDD to your desired format with MediaCoder. If not, please leave all the settings default (to make sure choose Revert All Settings in File menu).
3. You have a reasonably fast Internet connection if you want a good conversion speed, because the streaming and conversion/transcoding are done simultaneity (the flv file is not downloaded to your HDD), the bottleneck of the performance is usually the network speed.

Now let’s start. Read the rest of this entry »

Since 0.6.1.4060, MediaCoder comes with XML-RPC APIs through which MediaCoder can be controlled by any XML-RPC client both locally and remotely. The APIs are not yet finalized, here lists some of them and you can see their effects right now.
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Finally, HD DVD users now have the empirical evidence they’ve been looking for to prove that the universe really is conspiring against them. We figured we’d make ourselves useful over here and give you a list of things you can do with your poor, obsolete HD DVD player — starting with taking it out to dinner, excusing yourself to the bathroom before the check comes… then getting the hell out of there.

Gimmes

• eBay
• Doorstop
• Entertainment center cup-holder
• Destroy it. Office Space style.

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