FileStreamerGM Class Reference
[GraphManager]

#include <FileStreamerGM.h>

Inheritance diagram for FileStreamerGM:

[legend]Collaboration diagram for FileStreamerGM:

[legend]List of all members.

Public Member Functions
	FileStreamerGM (GMUser *user, MNSelector &sel, bool useDummyLayerSource=false, RTSP::TransportTypes requested_transport=RTSP::RTP_AVP_UDP)
virtual	~FileStreamerGM ()
virtual void	init (int idx)
virtual void	uninit ()
virtual u_int32	getSsrc ()
virtual void	start ()
virtual void	set_hostnames (const MNString &client, const MNString &server)
virtual void	set_ports (int idx, MNSocket *locDownRtp, MNSocket *locDownRtcp, int distDown, MNSocket *locUpRtp, MNSocket *locUpRtcp, int distUp)
virtual bool	graphManNotify (int idx, SH::Base *caller, SH::Notification attribute, void *msg)
virtual int	open_file (int idx, const char *name, int rtp_pt, SDP::PayloadTypes int_pt, u_int32 bw, SDP::RetransTypes int_rt, int packetsize)
virtual int	play (int startp, int stopp)
virtual int	stop ()
virtual int	pause ()
virtual int	jump (long pos)
virtual long	getFilePos ()
void	send_forced (size_t timeout, size_t packetsize)
void	stop_forced ()
void	recv_forced ()
virtual bool	synchronousGet (GetValue what, u_int32 &outVar)
	overloads SHGraphManager::synchronousGet
void	set_repeat_times (u_int32)

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Constructor & Destructor Documentation

FileStreamerGM::FileStreamerGM (  GMUser *  user, MNSelector &  sel, bool  useDummyLayerSource = false, RTSP::TransportTypes  requested_transport = RTSP::RTP_AVP_UDP )

Create a new FileStreamer graph manager to send data from a file to an RTP session. The creation includes the instantiation of a sequence of MNFileSourceSH, MNRTPEncoderSH and MNRTPSinkSH. The SHs are not initialized yet. Parameters: user  A pointer to the entity that wants to receive callbacks from this stream handlers when necessary. sel  The selector of the main thread, to be passed to the base class. useDummyLayerSource  If this parameter is true, the source stream handler will not be a file but a dummy source that releases packets which consist of a sequence number and a priority but that contain no data.

virtual FileStreamerGM::~FileStreamerGM (   )  [virtual]

Delete the three stream handlers that comprise this graph manager.

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Member Function Documentation

virtual long FileStreamerGM::getFilePos (   )  [virtual]

Reimplemented from ServerGM.

virtual u_int32 FileStreamerGM::getSsrc (   )  [virtual]

virtual bool FileStreamerGM::graphManNotify (  int  idx, SH::Base *  caller, SH::Notification  attribute, void *  msg )  [virtual]

Implements SHGraphManager.

virtual void FileStreamerGM::init (  int  idx  )  [virtual]

Retrieve the payload type table from the GMUser object. (this approach must be revised!). Set this payload type table in the MNRTPEncoderSH using the attribute interface. Initialize all stream handlers. Implements ServerGM.

virtual int FileStreamerGM::jump (  long  pos  )  [virtual]

Implements ServerGM.

virtual int FileStreamerGM::open_file (  int  idx, const char *  name, int  rtp_pt, SDP::PayloadTypes  int_pt, u_int32  bw, SDP::RetransTypes  int_rt, int  packetsize )  [virtual]

Parameters: name  The filename rtp_pt  The payload type that must be used in the RTP packet. It is either identical to int_pt or the SDP description that was negotiated between client and server maps it to the int_pt value. int_pt  The actual internal payload type. It is used to select the appropriate encoder. int_rt  The retransmission method type. It is used to select the correct RT method in the SHs. bw  Bandwidth ... packetsize  Requested packetsize ... Returns: 0 in case of successful initialization of the file and encoder stream handlers, -1 in case of a match or initialization failure.

virtual int FileStreamerGM::pause (   )  [virtual]

Implements ServerGM.

virtual int FileStreamerGM::play (  int  startp, int  stopp )  [virtual]

Implements ServerGM.

void FileStreamerGM::recv_forced (   )

NOT SUPPORTED right now. For more see send_forced

void FileStreamerGM::send_forced (  size_t  timeout, size_t  packetsize )

The forced functions were introduced into the old Streamer classes (before the GM/SH architecture). They implement a command path that is separate from the regular play/stop path. Here, the caller determines the packet sizes and the interpacket times instead of the codec. It is a function for faking and testing. It is NOT SUPPORTED right now. Parameters: timeout  Microseconds between two consecutive packets. packetsize  Size of packets in bytes.

virtual void FileStreamerGM::set_hostnames (  const MNString &  client, const MNString &  server )  [virtual]

Set the hostnames that this graph manager connects. Parameters: client  The hostname of the client that this GM will send data to. The hostname may be a dotted decimal address, also a multicast address. server  Must be an empty string (not NULL). Implements ServerGM.

virtual void FileStreamerGM::set_ports (  int  idx, MNSocket *  locDownRtp, MNSocket *  locDownRtcp, int  distDown, MNSocket *  locUpRtp, MNSocket *  locUpRtcp, int  distUp )  [virtual]

Implements ServerGM.

void FileStreamerGM::set_repeat_times (  u_int32   )  [inline]

Allows the GMUser to define the maximum number of times that an LC-RTP sender can try to complete the loss list before giving up. Currently a dummy.

virtual void FileStreamerGM::start (   )  [virtual]

If the graph manager is in state stopped, start all stream handlers. If it is in state paused, only the encoder stream handler has been paused before and must be restarted now. Implements ServerGM.

virtual int FileStreamerGM::stop (   )  [virtual]

Implements ServerGM.

void FileStreamerGM::stop_forced (   )

NOT SUPPORTED right now. For more see send_forced

virtual bool FileStreamerGM::synchronousGet (  GetValue  what, u_int32 &  outVar )  [virtual]

overloads SHGraphManager::synchronousGet Reimplemented from SHGraphManager.

virtual void FileStreamerGM::uninit (   )  [virtual]

Uninitialize all stream handlers. Implements ServerGM.

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The documentation for this class was generated from the following file:

• FileStreamerGM.h

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