Hi,
I'm trying to use gnonlin to timeshift media playback within a pipeline. For
example, instead of playing a 60 sec video clip normally, I want the output to be
black for 10 sec, play the 60 sec clip, and then play another 10 sec black screen -
for a new stream duration of 80 sec. In short, I want to shift the video's stream
time range from 0->60 sec to 10->70 sec.
In the Java example below (using gstreamer-java), I've added two gnlsource bins
to a gnlcomposition and set the start/duration properties accordingly.
The first videotestsrc will play as expected for 2 secs, but then the pipeline just
stops. I would have expected it to switch over to the second videotestsrc for 1 sec
and then switch back to the original videotestsrc for the final 2 secs.
If the second gnlsource is removed from the code, the test source plays fine for
the full 5 secs.
Does anyone know what I'm doing wrong? Thanks!
Cheers,
- Dave L
Pipeline pipe = new Pipeline("pipeline0");
final Bin composition = NativeObject.objectFor(
ElementFactory.make("gnlcomposition", null).getNativeAddress(), Bin.class);
pipe.add(composition);
Bin source1 = Bin.objectFor(ElementFactory.make("gnlsource", null)
.getNativeAddress(), Bin.class);
source1.set("start", 0);
source1.set("duration", 5000000000L);
source1.set("media-start", 0);
source1.set("media-duration", 5000000000L);
source1.set("priority", 1);
final Element videotestsrc1 = ElementFactory.make("videotestsrc", null);
videotestsrc1.set("pattern", 0);
source1.add(videotestsrc1);
composition.add(source1);
Bin source2 = Bin.objectFor(ElementFactory.make("gnlsource", null)
.getNativeAddress(), Bin.class);
source2.set("start", 2000000000L);
source2.set("duration", 1000000000L);
source2.set("media-start", 0);
source2.set("media-duration", 1 * 1000000000L);
source2.set("priority", 0);
final Element videotestsrc2 = ElementFactory.make("videotestsrc", null);
videotestsrc2.set("pattern", 1);
source2.add(videotestsrc2);
composition.add(source2);
final Bin videobin = Bin.launch("identity single-segment=true ! " +
"ffmpegcolorspace ! ximagesink", true);
pipe.add(videobin);
composition.connect(new Element.PAD_ADDED() {
public void padAdded(Element element, Pad pad) {
PadLinkReturn res = pad.link(videobin.getStaticPad("sink"));
}
});
pipe.setState(State.PLAYING);
Gst.main();
------------------------------------------------------------------------------
Beautiful is writing same markup. Internet Explorer 9 supports
standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3.
Spend less time writing and rewriting code and more time creating great
experiences on the web. Be a part of the beta today.
http://p.sf.net/sfu/beautyoftheweb_______________________________________________
gstreamer-devel mailing list
[hidden email]
https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
Locked
