public void start() {
mRunning = true;
mSession.setTimestampClock(
new TimestampClock() {
public int getCurrentTimestamp() {
return getCurTs();
}
});
try {
mPlayer =
Manager.createPlayer(
new DataSource(null) {
SourceStream[] mStream = {mInput};
public void connect() throws IOException {
sLogger.info("connect data source");
}
public void disconnect() {
sLogger.info("disconnect data source");
}
public String getContentType() {
return "audio/amr";
}
public SourceStream[] getStreams() {
return mStream;
}
public void start() throws IOException {
sLogger.info("start data source");
}
public void stop() throws IOException {
sLogger.info("start data source");
}
public Control getControl(String controlType) {
return null;
}
public Control[] getControls() {
return null;
}
});
mPlayer.addPlayerListener(this);
mPlayer.realize();
AudioPathControl lPathCtr =
(AudioPathControl)
mPlayer.getControl("net.rim.device.api.media.control.AudioPathControl");
lPathCtr.setAudioPath(AudioPathControl.AUDIO_PATH_HANDSET);
mPlayer.prefetch();
// if ( DeviceInfo.isSimulator() == false) { //only start player on real device
mPlayer.start();
if (sLogger.isLevelEnabled(Logger.Info)) sLogger.info("Player is started .");
// }
} catch (Throwable e) {
sLogger.error("player error:", e);
}
}
/* (non-Javadoc)
* @see java.io.InputStream#read(byte[], int, int)
*/
public int read(byte[] b, int offset, int length) throws IOException {
int bytesToReturn = sSilentAmr.length;
if (mBuffering) {
bytesToReturn = sSilentAmr.length * 8;
}
try {
if (!priority_set && Thread.currentThread().getPriority() != Thread.MAX_PRIORITY) {
Thread.currentThread().setPriority(Thread.MAX_PRIORITY);
priority_set = true;
}
// if (sLogger.isLevelEnabled(Logger.Info) && ((mPlayer.getMediaTime()<<3) % 1000 ==
// 0))sLogger.info("Player media time ["+mPlayer.getMediaTime()+"]");
int lWrittenLenth = 0;
while (lWrittenLenth <= bytesToReturn && mRunning) {
long ts = getCurTs();
if (mPlayerTs == -1) {
mPlayerTs = ts;
sLogger.info("Initializing timestamp to [" + mPlayerTs + "]");
}
RtpPacket packet = null;
try {
long diff;
while ((diff = (ts - mPlayerTs)) >= 0) {
if (diff > 800) {
mPlayerTs = ts - 800;
sLogger.warn("Too late, skipping " + ((diff - 800) / 8) + " ms...");
}
packet = mSession.recvPacket((int) mPlayerTs);
if (packet != null) {
mReturnedMs += 20;
if (mFirstRead) {
String lAmrHeader = "#!AMR\n";
lWrittenLenth = lAmrHeader.length();
System.arraycopy(
lAmrHeader.getBytes("US-ASCII"), 0, b, offset, lWrittenLenth);
length = length - lWrittenLenth;
offset += lWrittenLenth;
mFirstRead = false;
}
if ((length < sSilentAmr.length)) {
// special case for end of buffer
System.arraycopy(
packet.getBytes(), packet.getDataOffset() + 1, b, offset, length);
lWrittenLenth += length;
mTroncatedPacketSize = length;
mTroncatedPacket = packet;
if (sLogger.isLevelEnabled(Logger.Warn))
sLogger.warn("End of buffer, [" + lWrittenLenth + "] bytes returned");
return lWrittenLenth;
} else {
if (mTroncatedPacket != null) {
// special case for troncated packet
int remain =
mTroncatedPacket.getRealLength()
- mTroncatedPacket.getDataOffset()
- 1
- mTroncatedPacketSize;
System.arraycopy(
mTroncatedPacket.getBytes(),
mTroncatedPacket.getDataOffset() + 1 + mTroncatedPacketSize,
b,
offset,
remain);
lWrittenLenth += remain;
mTroncatedPacketSize = 0;
mTroncatedPacket = null;
offset += remain;
length -= remain;
}
// +1 because we need to skip the CMR bytes
int datalen = packet.getRealLength() - packet.getDataOffset() - 1;
System.arraycopy(
packet.getBytes(), packet.getDataOffset() + 1, b, offset, datalen);
lWrittenLenth += datalen;
length -= datalen;
offset += datalen;
}
}
mPlayerTs += 160;
}
} catch (RtpException e) {
sLogger.error("Bad RTP packet", e);
}
if (packet == null) Thread.sleep(20);
}
if (!mRunning) {
// to notify end of stream.
return -1;
}
if (sLogger.isLevelEnabled(Logger.Debug))
sLogger.debug("[" + lWrittenLenth + "] bytes returned");
return lWrittenLenth;
} catch (Throwable e) {
sLogger.error("Exiting player input stream", e);
return -1;
} finally {
if (bytesToReturn > sSilentAmr.length) {
// we were buffering, so now it's ok resetting value
mBuffering = false;
}
}
}
