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From: Cory J. <cj...@st...> - 2003-12-02 18:14:26
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>> JFFMPEG.java: loading jffmpeg library = javax.media.ResourceUnavailableException: = /usr/local/java/j2sdk1.4.1_04/jre/lib/ext/libjffmpeg.so: >> /usr/local/java/j2sdk1.4.1_04/jre/lib/ext/libjffmpeg.so: undefined = symbol: __gxx_personality_v0=20 Try editing the makefile and changing the compiler from "gcc" to "g++" Hope this helps. Cory |
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From: Stephen D. <go...@fr...> - 2003-12-01 16:50:26
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Greetings. SO, Ok, I now have JFFMPeg compiling on Microsoft using MinGw. When I try to follow Sun's instructions for installing, I get a "Class not available" Error. What am I missing? Regards, Steve -- Java/J2EE Developer/Integrator Co-Chair, Dallas/FortWorth J2EE Sig 214-724-7741 |
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From: Stephen D. <go...@fr...> - 2003-11-25 15:13:41
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Greetings. I am currently having some problems getting this guy to compile. Suggestions would be appreciated. Thanks, Steve steve@gorky:~/projects/jffmpeg> java jffmpeg_test Hello world JFFMPEG.java: loading jffmpeg library javax.media.ResourceUnavailableException: /usr/local/java/j2sdk1.4.1_04/jre/lib/ext/libjffmpeg.so: /usr/local/java/j2sdk1.4.1_04/jre/lib/ext/libjffmpeg.so: undefined symbol: __gxx_personality_v0 -- Java/J2EE Developer/Integrator Co-Chair, Dallas/FortWorth J2EE Sig 214-724-7741 |
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From: <cor...@co...> - 2003-11-04 01:24:52
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Hello - I am glad to see there is some new activity on this project !!! Good news! I have successfully compiled and run the jffmpeg test and I was able to register the codec plugin with JMFPlayer. My question is, how do I get the player to utilize the jffmpeg decoder? I understand this project is at a very minimal implementation, but is the plugin at state where it should work? JMF never seems to attempt to use the plugin for decoding mpeg files (no matter at what location it is placed in the chain of decoders) Is this because jffmpeg does not have the RGB output support yet? Any insight would be helpful. Thank you in advance. FYI - I am running RedHat 9, JMF linux binary optimized and source impl) ~Cory |
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From: Stephen D. <go...@is...> - 2003-10-17 17:22:06
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Hi Jorg. In defense of JFFMPeg, I only recently (like this week) was added to it. The one guy on it has been working on it pretty steadily for over a year now (that I was able to find out about, anyways). It IS known over in in JavaLand as the JMF plugin wrapper for FFMpeg. JMF took a large "hit" when the .COM bust happened, and as a result, development of MultiMedia technologies in Java took a pretty hard downturn. As for dead, with only one developer dedicated to it, and one doing parttime assistance, I will admit it was just about dead. But it does what my client needs it to (or will shortly), so it will shortly have two firms dedicated to maintaining it. And as its main job is to provide a bridge between Java/JMF & FFMPeg, it should not be that sophisticated. So it looks like it may be about to be "resurrected" from beyond the grave <grin> In my client's defence, they started off with a Microsoft platform, but now need to expand on to mainframes and servers. This is why they are making the change of their products at this time to Java, an effort I am spearheading. As for my knowledge of JNI, lets just say I know more than I care to. I have been doing nothing but JNI for the last year (although for the last two months it has only been on & off). Specifically, my client does much with thirdparty propieratary hardware cards, which don't speak java (fortunately their controller libraries generally at least speak C, and some do C++). So I have been writing code to interface Java to them, as well as some of my client's legacy code. In regards to building projects, I should point out the following; 1) I do NOT know MAKE. 2) I CAN call MAKE from an Ant build script 3) Everyone I know who has tried Ant has decided not to go back to Make 4) Ant is the defacto standard for building Java Ant lives at http://ant.apache.org/, and is developed and maintained by the fine folks over at Apache. It is Java powered, and it is "configured" via XML "scripts", so it is completely platform independant. All that is needed for a build is an Ant Library and a JDK (Java Development Kit - basic ones including compiler and some very useful tools available at no charge from Sun). And most people who install JDKs would have already installed Ant. Bottom line for the build process? I would prefer to go with Ant, and where needed, use it to call MAKE. I have already created some projects where Ant is calling Microsoft Make, as well as MS C-Compiler. Not very difficult, if you know the command lines for the MAKE and C Tools you want to use. I guess the main detail that needs to be worked out is, where will the Java version of FFMPeg live? Should it be part of the FFMPeg project? Or should it be in the Java FFMpeg (JFFMPEG) project? Or should it be put somewhere else? Regards, Steve Jorg Heymans wrote: > Stephen, > > I couldn't believe my own eyes but "JFFMPEG" is a googlewack. If this > doesn't classify as a "dead" project then I don't what does. > Porting ffmpeg to java really only requires some cleverness with JNI , > if anything it will be getting it to build and install cross-platform > properly will be the hardest bit (.so or .dll's needing to be in > specific places etc). But this has all been done before. > > Are you knowledgeable in JNI? I could help with the java coding part. We > would need a ffmpeg expert to tell us which entry points in the source > we should start writing wrappers for, then we can expand. (or maybe i > just just stop jammering about it and get on with it :-) > > Regards > Jorg > -- Java/J2EE Developer/Integrator Co-Chair, Dallas/FortWorth J2EE Sig 214-724-7741 |
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From: Francisco J. C. <fjc...@vi...> - 2002-06-13 10:34:32
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> Yes but from those standard packages, it adds ".media.codec.video" and > ".media.codec.audio" to find them ! that's are very good news. Have you test it? > Let manually register the package "org.jffmpeg " in the registry from a > static function and put the codec in "org.jffmpeg.media.codec.video.mpg= " > and it should work directly. > With ant we can do a unique makefile for all the platforms, I'll send > you an example. Ok. I have an example to make a DLL with cygwin tools. I got it from a JN= I=20 cygwin example. When things begin to work I'll commit it. Paco. |
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From: Francisco J. C. <fjc...@vi...> - 2002-06-13 09:38:02
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From: Francisco J. C. <fjc...@vi...> - 2002-06-13 09:37:29
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From: Francisco J. C. <fjc...@vi...> - 2002-06-13 09:34:33
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From: Francisco J. C. <fjc...@vi...> - 2002-06-07 05:25:37
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Hi, this is only a test. bye. --=20 =20 Person who says it cannot be done should not interrupt person doing it. 7:24am up 3 days, 15:59, 2 users, load average: 0.49, 0.29, 0.12 |
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