GSVideo - No such GStreamer factory

zmalex

GSVideo - No such GStreamer factory

in Contributed Library Questions • 1 year ago

Hi all

I am having some problems with the GStreamer factory.

System:
- W7 x64,
- Eclipse x64,
- java 7 x64 u2,
- Procssing 1.5.1
- Using proclipse

Background:
After first installing GStreamer I had to fix libraries not being imported to eclipse properly. See problems and fixes below.

NoClassDefFoundError
https://forum.processing.org/topic/gsvideo-proclipsing-eclipse
(jna.jar was not imported properly by proclipse)

UnsatisfiedLinkError
https://forum.processing.org/topic/gsvideo-0-8-in-eclipse-unsatisfiedlinkerror-unable-to-load-library-gstreamer-0-10
(Moving gstreamer folder not imported properly by proclipse)

Current status:
Everything builds and runs now but I am experiencing other problems.

1. Can not start GStreamer factories
No such Gstreamer factory: xvidenc
No such Gstreamer factory: x264enc
No such Gstreamer factory: schroenc
No such Gstreamer factory: jp2kenc

Why is this? Are the codecs in some library that I am still missing?

2. MJPEG is the only one working on very short movies
I can only use MJPEG output without erros. However if I record more than 20+ seconds I can not play the video. The file grows to the correct size but I can't view it. Can I post it somewhere for you to have a look at it? My guess is that the container does not agree with MJPEG?

3. THEORA files are 0 bytes (less important but maybe a bug?)
When using THEORA the file is never larger than 4 bytes.

Replies(6)

zmalex

Re: GSVideo - No such GStreamer factory

1 year ago

bump. Anyone?

andres

Re: GSVideo - No such GStreamer factory

1 year ago

Hello. Do you get all these errors (1, 2 and 3) only in the applications built with proclipsing, or also when running gsvideo sketches from the PDE?

Is it possible for you to run your tests but using the latest java 6?

You are using the latest gsvideo available (1.0.0), right?

Andres

zmalex

Re: GSVideo - No such GStreamer factory

1 year ago

Hi Andres

Java
I am using GSVideo 1.0.0 and also uninstalled all Java 7 and am only runing Java 6 x64.

$ java -version shows:
java version "1.6.0_30"
Java(TM) SE Runtime Environment (build 1.6.0_30-b12)
Java HotSpot(TM) Client VM (build 20.5-b03, mixed mode, sharing)

Using the PDE
I tried the MovieMaker sketch from the the examples folder using the PDE.

mm = new GSMovieMaker(this, width, height, "drawing.ogg", GSMovieMaker.THEORA, GSMovieMaker.MEDIUM, fps);

This works fine in the sketch. I noticed the .ogg file ending so I changed my output file name in my code to also use ogg instead of avi. Now I sometimes get files larger than 0 bytes, but the framerate seems to be wrong. Files being 20s+ still end up being 0 bytes.

I then tried
mm = new GSMovieMaker(this, width, height, "drawing.avi", GSMovieMaker.DIRAC, GSMovieMaker.BEST, fps);

which gave me the error:

Exception in thread "Animation Thread" java.lang.IllegalArgumentException: No such Gstreamer factory: schroenc
    at org.gstreamer.ElementFactory.makeRawElement(ElementFactory.java:220)
    at org.gstreamer.ElementFactory.make(ElementFactory.java:92)
    at org.gstreamer.elements.RGBDataFileSink.<init>(RGBDataFileSink.java:131)
    at codeanticode.gsvideo.GSMovieMaker.initRecorder(Unknown Source)
    at codeanticode.gsvideo.GSMovieMaker.init(Unknown Source)
    at codeanticode.gsvideo.GSMovieMaker.<init>(Unknown Source)
    at GSVideo_MovieMaker.setup(GSVideo_MovieMaker.java:69)
    at processing.core.PApplet.handleDraw(Unknown Source)
    at processing.core.PApplet.run(Unknown Source)
    at java.lang.Thread.run(Thread.java:662)

This is the same I get using eclipse and I got similar results for:
shroenc
jpg2kenc
xvidenc
x264enc

Questions:

Is there any extended logging I can do to help find the problem?
My application is pretty heavy on the CPU at times. Could I be starving the movie renderer? I tried experimenting with very large queues.
What is a recommended queue size?
The missing factory exception is puzzling me. Are other people seeing this too?

andres

Re: GSVideo - No such GStreamer factory

1 year ago

I tested the movie maker example in GSVideo 1.0.0, on a Win7 x64 system, using Processing 1.5.1 expert with Java 7 update 2 x64. The encoders for the schrodinger, xvid, x264 and jpg2k codecs are simply missing from the library, that's why you get the " missing factory" error. This won't be solved until I manage to recompile the native gstreamer dlls including the additional encoders.

The only codec that works more or less reliably at this time for movie making is theora, with an ogg container (avi doesn't work for some reason in combination with the theora codec).

As for the recommended queue size, it really depends on the resolution of your movie: higher resolutions should require larger queues since the encoding process takes more time. However, the queue as it is implemented right now is kind of clunky: it has two parts, one on the Processing/java side and the other on the native side, which you set with:

GSMovieMaker.setQueueSize(size of Java queue, size of native queue);

but the most effective one seems to be the native queue. I just tested creating a 800x600 movie using setQueueSize(50, 100) without dropping frames, for 1024x168 I bumped the native queue to 300 in order to avoid dropped frames, but changing the size of the Java queue didn't help.

zmalex

Re: Re: GSVideo - No such GStreamer factory

1 year ago

Thanks for confirming the Theora / ogg approach. I also had some success with mjpeg.

"This won't be solved until I manage to recompile the native gstreamer dlls including the additional encoders."

Do you see this being solved anytime soon or is it low priority?

andres

Re: GSVideo - No such GStreamer factory

1 year ago

It is low priority at the moment. I'm busy right now with the new OpenGL renderer for Processing 2.0, but after the new alpha is out, I will go back to gstreamer, and might be able to look at this issue.

Top Reply