Inline H261 - player in JAVA (JITVERSION CIF Example)

Here shell be an Applet. You can't see it because you don't use a Java capable WWW browser or you didn't enable Java. Please check: Options --> Preferences --> Languages --> Enable Java

This is a demonstration of the JIT version of the inline player for H261 files. The difference to the original version is that this version doesn't save the frames for later display phase. It is assumed that a JIT system (like in IExplorer on WINDOWS 95/NT) is fast enough to decode 5 - 7 frames per second.

The CIF example is requires certainly a JIT (Java just-in-time compiler) as with IExplorer on Windows 95/NT. If you don't have one you should rather use a NON-JIT version of this player.

This is version 1.4.

See also: The Java inline MPEG Player!

To use the H261 player download the classfiles and place a text like this on your web page:

	<APPLET CODE="H261_Play.class" WIDTH=410 HEIGHT=310>
	<PARAM NAME=FILENAME VALUE="myfile.h26">
	<PARAM NAME=DELAY VALUE=40>
	</APPLET>

If you don't have a GNU-Tar you can download the classfiles as ZIP archive here: jitclass.zip. Note! Windows-95 users must not use the old 16bit "unzip.exe" because it cannot handle the 5-letter suffix ".class"! Refer to http://www.cdrom.com/pub/infozip/WIN32 or use "winzip" which is available on many sites in Internet!

The (optional) parameter "DELAY" describes the delay (in ms) between 2 images during animation default: 200. If "DELAY" is set to "user" a control panel appears and the user can determine the animation speed.

Likewise you can use the player as application. In this case call:

	java H261_Play <myfile.h26> <delay>

Like in Applet the (optional) parameter "DELAY" can be set to "user". Again the delay is optional.

How to produce a H261 file from a sequence of images?

There exists a package named "P64v1.2.2.tar.Z" (or so). This packages contains an H261 coder. The input is a sequence of Y-, U-, V- images.

LICENSE

The software is not free! But you can use it to enhance your Web page with animations without any fee.

Any commercial use requires an agreement with the author.

Where is the source ?

The condition for the source code is: You have to arrange a publication of an article written by the author of this H261 player. The topic of this article will be "Java video players" or "The Java H261 Player" or "The Java MPEG Player" or "The implementation of the 2D-IDCT in Java" or any other related topic. The sense of this article will be like the description of the Java inline MPEG Player. The article can be in German or in English. In the latter case a revision is certainly necessary because I'm not a native speaker of the English language. If you send me one exemplar of the paper with my article I'll send you the source text of the current and all following versions.

This condition seems to be very unfair but what is done to me is very unfair, too. I wrote a Java inline MPEG Player and I thought it were very easy to write a small article about this topic. Although many people wrote me they learned a lot about MPEG from my Web pages an the source text of the MPEG player nobody wanted to publish an appropriate article.

At the end of the year I must supply a so-called "list of publications". But because I haven't any my "list of publications" is empty. From the point of view of our administration I didn't anything although:

about 1000 accesses per month occur to "http://rnvs.informatik.tu-chemnitz.de/~ja/MPEG_MPEG/Play.html";
The page can be found on many sites that present Java tools like:
The page was "The cool site of the month" in June 1997 on http://www.mpeg.org;

Because Web publications don't count from the point of view of the university's administration I slept the whole year.

J.Anders,
Professur Rechnernetz u. verteilte Systeme
TU-Chemnitz