任何人都可以帮我一个关于如何使用gstreamer在java中实现RTSP流媒体服务器的教程。
答案 0 :(得分：8)
RTSP构建过程服务器（代码在C中，但请查看我的客户端代码以了解如何使用gstreamer-java API。它应该相当直接）
我修改了网址
中的代码http://www.ip-sense.com/linuxsense/how-to-develop-a-rtsp-server-in-linux-using-gstreamer/
/* GStreamer
* Copyright (C) 2008 Wim Taymans <wim.taymans at gmail.com>
* Copyright (c) 2012 enthusiasticgeek <enthusiasticgeek@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
//Edited by: enthusiasticgeek (c) 2012 for Stack Overflow Sept 11, 2012
//###########################################################################
//Important
//###########################################################################
//On ubuntu: sudo apt-get install libgstrtspserver-0.10-0 libgstrtspserver-0.10-dev
//Play with VLC
//rtsp://localhost:8554/test
//video decode only: gst-launch -v rtspsrc location="rtsp://localhost:8554/test" ! rtph264depay ! ffdec_h264 ! autovideosink
//audio and video:
//gst-launch -v rtspsrc location="rtsp://localhost:8554/test" name=demux demux. ! queue ! rtph264depay ! ffdec_h264 ! ffmpegcolorspace ! autovideosink sync=false demux. ! queue ! rtppcmadepay ! alawdec ! autoaudiosink
//###########################################################################
#include <gst/gst.h>
#include <gst/rtsp-server/rtsp-server.h>
/* define this if you want the resource to only be available when using
* user/admin as the password */
#undef WITH_AUTH
/* this timeout is periodically run to clean up the expired sessions from the
* pool. This needs to be run explicitly currently but might be done
* automatically as part of the mainloop. */
static gboolean
timeout (GstRTSPServer * server, gboolean ignored)
{
GstRTSPSessionPool *pool;
pool = gst_rtsp_server_get_session_pool (server);
gst_rtsp_session_pool_cleanup (pool);
g_object_unref (pool);
return TRUE;
}
int
main (int argc, char *argv[])
{
GMainLoop *loop;
GstRTSPServer *server;
GstRTSPMediaMapping *mapping;
GstRTSPMediaFactory *factory;
#ifdef WITH_AUTH
GstRTSPAuth *auth;
gchar *basic;
#endif
gst_init (&argc, &argv);
loop = g_main_loop_new (NULL, FALSE);
/* create a server instance */
server = gst_rtsp_server_new ();
gst_rtsp_server_set_service(server,"8554"); //set the port #
/* get the mapping for this server, every server has a default mapper object
* that be used to map uri mount points to media factories */
mapping = gst_rtsp_server_get_media_mapping (server);
#ifdef WITH_AUTH
/* make a new authentication manager. it can be added to control access to all
* the factories on the server or on individual factories. */
auth = gst_rtsp_auth_new ();
basic = gst_rtsp_auth_make_basic ("user", "admin");
gst_rtsp_auth_set_basic (auth, basic);
g_free (basic);
/* configure in the server */
gst_rtsp_server_set_auth (server, auth);
#endif
/* make a media factory for a test stream. The default media factory can use
* gst-launch syntax to create pipelines.
* any launch line works as long as it contains elements named pay%d. Each
* element with pay%d names will be a stream */
factory = gst_rtsp_media_factory_new ();
gst_rtsp_media_factory_set_launch (factory, "( "
"videotestsrc ! video/x-raw-yuv,width=320,height=240,framerate=10/1 ! "
"x264enc ! queue ! rtph264pay name=pay0 pt=96 ! audiotestsrc ! audio/x-raw-int,rate=8000 ! alawenc ! rtppcmapay name=pay1 pt=97 "")");
/* attach the test factory to the /test url */
gst_rtsp_media_mapping_add_factory (mapping, "/test", factory);
/* don't need the ref to the mapper anymore */
g_object_unref (mapping);
/* attach the server to the default maincontext */
if (gst_rtsp_server_attach (server, NULL) == 0)
goto failed;
/* add a timeout for the session cleanup */
g_timeout_add_seconds (2, (GSourceFunc) timeout, server);
/* start serving, this never stops */
g_main_loop_run (loop);
return 0;
/* ERRORS */
failed:
{
g_print ("failed to attach the server\n");
return -1;
}
}
生成文件
# Copyright (c) 2012 enthusiasticgeek
# RTSP demo for Stack Overflow
sample:
gcc -Wall -I/usr/include/gstreamer-0.10 rtsp.c -o rtsp `pkg-config --libs --cflags gstreamer-0.10 gstreamer-rtsp-0.10` -lglib-2.0 -lgstrtspserver-0.10 -lgstreamer-0.10
构建二进制文件后，只需运行它./rtsp并打开终端中的另一个选项卡，使用以下管道测试服务器。
测试了解码管道。它工作正常！
gst-launch -v rtspsrc location="rtsp://localhost:8554/test" name=demux demux. ! queue ! rtph264depay ! ffdec_h264 ! ffmpegcolorspace ! autovideosink sync=false demux. ! queue ! rtppcmadepay ! alawdec ! autoaudiosink
Java代码客户端
// Display RTSP streaming of video
// (c) 2011 enthusiasticgeek
// This code is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE
// Leave Credits intact
package video2; //replace this with your package
import java.awt.BorderLayout;
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
//import org.gstreamer.Caps;
import org.gstreamer.Element;
import org.gstreamer.ElementFactory;
import org.gstreamer.Gst;
import org.gstreamer.Pad;
import org.gstreamer.PadDirection;
import org.gstreamer.Pipeline;
import org.gstreamer.swing.VideoComponent;
/**
* A Simple videotest example.
*/
public class Main {
public Main() {
}
private static Pipeline pipe;
public static void main(String[] args) {
// Quartz is abysmally slow at scaling video for some reason, so turn it off.
System.setProperty("apple.awt.graphics.UseQuartz", "false");
args = Gst.init("SwingVideoTest", args);
pipe = new Pipeline("pipeline");
/*
final Element videosrc = ElementFactory.make("videotestsrc", "source");
final Element videofilter = ElementFactory.make("capsfilter", "flt");
videofilter.setCaps(Caps.fromString("video/x-raw-yuv, width=720, height=576"
+ ", bpp=32, depth=32, framerate=25/1"));
*/
pipe.getBus().connect(new Bus.ERROR() {
public void errorMessage(GstObject source, int code, String message) {
System.out.println("Error occurred: " + message);
Gst.quit();
}
});
pipe.getBus().connect(new Bus.STATE_CHANGED() {
public void stateChanged(GstObject source, State old, State current, State pending) {
if (source == pipe) {
System.out.println("Pipeline state changed from " + old + " to " + current);
}
}
});
pipe.getBus().connect(new Bus.EOS() {
public void endOfStream(GstObject source) {
System.out.println("Finished playing file");
Gst.quit();
}
});
pipe.getBus().connect(new Bus.TAG() {
public void tagsFound(GstObject source, TagList tagList) {
for (String tag : tagList.getTagNames()) {
System.out.println("Found tag " + tag + " = "
+ tagList.getValue(tag, 0));
}
}
});
final Element source = ElementFactory.make("rtspsrc", "Source");
final Element demux = ElementFactory.make("rtpmp4vdepay", "Depay");
final Element decoder=ElementFactory.make("ffdec_mpeg4", "Decoder");
final Element colorspace = ElementFactory.make("ffmpegcolorspace", "Colorspace");
//final Element sink = ElementFactory.make ("autovideosink", "Output");
SwingUtilities.invokeLater(new Runnable() {
public void run() {
// Create the video component and link it in
VideoComponent videoComponent = new VideoComponent();
Element videosink = videoComponent.getElement();
source.connect(new Element.PAD_ADDED() {
public void padAdded(Element element, Pad pad) {
pad.link(demux.getStaticPad("sink"));
}
});
Pad p = new Pad(null, PadDirection.SRC);
source.addPad(p);
source.set("location","rtsp://<user>:<pass>@<ip>/mpeg4/1/media.amp"); //replace this with your source
pipe.addMany(source, demux, decoder, colorspace, videosink);
Element.linkMany(demux, decoder, colorspace, videosink);
// Now create a JFrame to display the video output
JFrame frame = new JFrame("Swing Video Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(videoComponent, BorderLayout.CENTER);
videoComponent.setPreferredSize(new Dimension(720, 576));
frame.pack();
frame.setVisible(true);
// Start the pipeline processing
pipe.play();
}
});
}
}