Class RTPH264Packetizer
Hierarchy
java.lang.Object
com.smartdevicelink.streaming.AbstractPacketizer
- Package
- com.smartdevicelink.streaming.video
- All Implemented Interfaces
- com.smartdevicelink.streaming.video.IVideoStreamListener, java.lang.Runnable
Overview
This class receives H.264 byte stream (in Annex-B format), parses it, construct RTP packets from it based on RFC 6184, then frame the packets based on RFC 4571. The primary purpose of using RTP is to carry timestamp information along with the data.Quick Jump
- Constructors
- Methods
Fields
Inherited Fields
| From Class | Fields |
|---|---|
| com.smartdevicelink.streaming.AbstractPacketizer | _streamListener, _rpcSessionID, _serviceType, _session, is, bufferSize, buffer, _request, _wiproVersion |
Constructors
RTPH264Packetizer( IStreamListener streamListener, SessionType serviceType, byte sessionID, SdlSession session )
Constructor
public RTPH264Packetizer(IStreamListener streamListener,SessionType serviceType,byte sessionID,SdlSession session)
Constructor Parameters
- streamListener
- The listener which this packetizer outputs SDL frames to
- serviceType
- The value of "Service Type" field in SDL frames
- sessionID
- The value of "Session ID" field in SDL frames
- session
- The SdlSession instance that this packetizer belongs to
Methods
setPayloadType( byte type )
Sets the Payload Type (PT) of RTP header field.
Use this method if PT needs to be specified. The value should be between 0 and 127. Otherwise, a default value (96) is used.
public void setPayloadType(byte type)
Method Parameters
- type
- A value indicating the Payload Type
setSSRC( int ssrc )
Sets the SSRC of RTP header field.
Use this method if SSRC needs to be specified. Otherwise, a random value is generated and used.
public void setSSRC(int ssrc)
Method Parameters
- ssrc
- An integer value representing SSRC
start()
Starts this packetizer.
It is recommended that the video encoder is started after the packetizer is started.
public void start() throws java.io.IOException
Throws
- java.io.IOException
stop()
Stops this packetizer.
It is recommended that the video encoder is stopped prior to the packetizer.
public void stop()
pause()
Pauses this packetizer.
This pauses the packetizer but does not pause the video encoder.
public void pause()
resume()
Resumes this packetizer.
public void resume()
run()
The thread routine.
public void run()
sendFrame( byte[] data, int offset, int length, long presentationTimeUs )
Called by the app and encoder.
public void sendFrame(byte[] data,int offset,int length,long presentationTimeUs) throws java.lang.ArrayIndexOutOfBoundsException
Method Parameters
- data
- offset
- length
- presentationTimeUs
Throws
- java.lang.ArrayIndexOutOfBoundsException
sendFrame( ByteBuffer data, long presentationTimeUs )
Called by the app and encoder.
public void sendFrame(ByteBuffer data,long presentationTimeUs)
Method Parameters
- data
- presentationTimeUs
Inherited Methods
| From Class | Methods |
|---|---|
| com.smartdevicelink.streaming.AbstractPacketizer | start, stop, pause, resume |
| java.lang.Object | getClass, hashCode, equals, clone, toString, notify, notifyAll, wait, wait, wait, finalize |