How to set bit rate of audio and video
I want to set the bit rate of audio and video (48,96.128 kbps) at the time of live streaming . i m not using the flash media live encoder because i have to make it as web applicaton. can any one tell me how to set bit rate.
When you're using Flash Player to capture and encode video, your only control is Camera.setQuality():
http://help.adobe.com/en_US/AS3LCR/Flash_10.0/flash/media/Camera.html#setQuality()
Jody
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Hey
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Welcome to Discussions.
There could be several reasons.
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Hi everyone!
I've tried to make one of the processors, processor1, control the other processor, processor2, with processor1.addController(processor2) but I get a
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In JMF API Guide I've read:
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How are you supposed to sync audio and video if not with as above ?camelstrike wrote:
Hi everyone!
I've tried to make one of the processors, processor1, control the other processor, processor2, with processor1.addController(processor2) but I get a
javax.media.IncompatibleTimeBaseException. I need to synchronize audio and video rtp-streams because they are sometimes completely out of sync.
In JMF API Guide I've read:
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Player objects. Not all Player objects can assume a new time base.
For example, if one of the Player objects you want to synchronize has
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drive the other Player objects."
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How can I restore the audio and video codecs which are installed by default on my Satellite A80 with XP Home edition?
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Message was edited by: roelHave investigated in the forum and found this different codecs:
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Well, if the system restore does't work try to install one or several codecs from this list.
Have found it in this posting:
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I am working on a video chat project. I need to capture audio and video from mic and webcam and create rtp stream for them. How can I proceed for this. Any source code help will be highly appreciated. Otherwise just guide me how to do this and point to any good resource which is directly related to my need.
Thanx.t.b.m
As mentioned by you, i am doing exactly like that . I have coded transmitter class. But at the receiver side it is unable to play the stream. I am posting my code . Can you please help with me with any mistake i m making in my code ?? Or with way I should receive stream at receiver side. Plz see my code. I am streaming to ip address 172.31.80.67.
package heyram;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.media.control.*;
import javax.media.protocol.*;
import javax.media.format.*;
import java.io.IOException;
import java.util.Vector;
import java.net.InetAddress;
import java.awt.*;
import java.io.*;
import java.net.InetAddress;
import javax.media.*;
import javax.media.protocol.*;
import javax.media.protocol.DataSource;
import javax.media.format.*;
import javax.media.control.TrackControl;
import javax.media.control.QualityControl;
import javax.media.rtp.*;
import javax.media.rtp.rtcp.*;
import com.sun.media.rtp.*;
import java.lang.Thread.*;
public class HEYRAM{
Format[] format=new Format[2];
Vector[] devices=new Vector[2];
CaptureDeviceInfo[] di=new CaptureDeviceInfo[2];
SessionManager rtpsm = new com.sun.media.rtp.RTPSessionMgr();
Processor p=null;
Processor p1=null;
boolean result;
public HEYRAM(String address,int port,int ttl){
try{
InetAddress destaddr = InetAddress.getByName(address);
SessionAddress sessaddr = new SessionAddress(destaddr,
port,
destaddr,
port + 1);
String cname = rtpsm.generateCNAME();
String username = null;
try {
username = System.getProperty("user.name");
} catch (SecurityException e){
username = "jmf-user";
// create our local Session Address
SessionAddress localaddr = new SessionAddress();
SourceDescription[] userdesclist= new SourceDescription[]
new SourceDescription(SourceDescription
.SOURCE_DESC_EMAIL,
"[email protected]",
1,
false),
new SourceDescription(SourceDescription
.SOURCE_DESC_CNAME,
cname,
1,
false),
new SourceDescription(SourceDescription
.SOURCE_DESC_TOOL,
"JMF RTP Player v2.0",
1,
false)
rtpsm.initSession(localaddr,
userdesclist,
0.05,
0.25);
rtpsm.startSession(sessaddr,ttl,null);
} catch (Exception e) {
System.err.println(e.getMessage());
//return null;
// rtpsm.initSession(localAddress, defaultUserDesc, rtcp_bw_fraction, rtcp_sender_bw_fraction);
// rtpsm.startSession(...);
public void createVideoSession()
format[1] = new VideoFormat(VideoFormat.YUV);
devices[1]= CaptureDeviceManager.getDeviceList( format[1]);
di[1]= null;
if (devices[1].size() > 0) {
di[1] = (CaptureDeviceInfo)devices[1].elementAt(0);
System.out.println(di[1].toString());
else {
// exit if we could not find the relevant capture device.
System.out.println("1234jjfjsajfjasf1");
System.exit(-1);
// Create a processor for this capture device & exit if we
// cannot create it
try {
p1 = Manager.createProcessor(di[1].getLocator());
} catch (IOException e) {
System.out.println("1234jjfjsajfjasf2");
System.exit(-1);
} catch (NoProcessorException e) {
System.out.println("1234jjfjsajfjasf3");
System.exit(-1);
// at this point, we have succesfully created the processor.
// Realize it and block until it is configured.
// p1.configure();
result = waitForState(p1, Processor.Configured);
if (result == false)
System.out.println("Couldn't realize processor");
p1.setContentDescriptor(new ContentDescriptor( ContentDescriptor.RAW_RTP));
// block until it has been configured
TrackControl track[] = p1.getTrackControls();
boolean encodingOk = false;
// Go through the tracks and try to program one of them to
// output ULAW_RTP data.
for (int i = 0; i < track.length; i++) {
if (!encodingOk && track[i] instanceof FormatControl) {
if (((FormatControl)track).
setFormat( new VideoFormat(VideoFormat.YUV)) == null) {
track[i].setEnabled(false);
else {
encodingOk = true;
else {
// we could not set this track to gsm, so disable it
track[i].setEnabled(false);
// Realize it and block until it is realized.
p1.realize();
result = waitForState(p1, Processor.Realized);
if (result == false)
System.out.println("Couldn't realize processor");
// block until realized.
// get the output datasource of the processor and exit
// if we fail
DataSource ds = null;
try {
ds = p1.getDataOutput();
} catch (NotRealizedError e){
//System.exit(-1);
System.out.println("1234jjfjsajfjasf4");
// Create a SessionManager and hand over the
// datasource for SendStream creation.
// The session manager then needs to be initialized and started:
// rtpsm.initSession(...);
// rtpsm.startSession(...);
try {
(rtpsm.createSendStream(ds, 0)).start();
} catch (IOException e){
System.out.println("1234jjfjsajfjasf6");
e.printStackTrace();
} catch( UnsupportedFormatException e) {
System.out.println("1234jjfjsajfjasf7");
e.printStackTrace();
public void createAudioSession(){
format[0] = new AudioFormat("linear",8000,8,1);
devices[0]= CaptureDeviceManager.getDeviceList( format[0]); -
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