API for IC streamer. More...

#include "mh5base.h"
#include "mh5stream.h"
#include "mh5program.h"
#include "mherrors.h"

Enumerations
enum	MHEG5StreamerEventType { MHEG5_STREAMER_EVENT_HTTP_HEADERS_DONE, MHEG5_STREAMER_EVENT_HTTP_DOWNLOAD_DONE, MHEG5_STREAMER_EVENT_MSP_DOWNLOAD_DONE, MHEG5_STREAMER_EVENT_TASK_STREAM_UNDERFLOW, MHEG5_STREAMER_EVENT_TASK_STREAM_UNDERFLOW_RESUME, MHEG5_STREAMER_EVENT_TASK_STREAM_PLAYING, MHEG5_STREAMER_EVENT_TASK_STREAM_STOPPED, MHEG5_STREAMER_EVENT_CONTENT_AVAILABLE, MHEG5_STREAMER_EVENT_COUNTER_TRIGGER }

Functions
E_MhegErr	MHEG5StreamerOpen (void *buffer, U32BIT size, U32BIT taskPriority)
	Open the IC streaming module. More...

void	MHEG5StreamerReset (void)
	Reset the IC streaming module. More...

void	MHEG5StreamerPrepare (MHEG5Stream *stream)
	Prepare for retrieval of a stream from the IP connection. More...

S32BIT	MHEG5StreamerGetCounterPosition (MHEG5Stream *stream)
	Return the current counter position (in units of 188 bytes). More...

void	MHEG5StreamerSetCounterPosition (MHEG5Stream *stream)
	Set the counter position of a stream in the streamer. This function uses the counter position as set in the stream object. More...

void	MHEG5StreamerSetCounterEndPosition (MHEG5Stream *stream)
	Set the counter end position of a stream in the streamer. This function uses the counter end position as set in the stream object. More...

S32BIT	MHEG5StreamerGetCounterMaxPosition (MHEG5Stream *stream)
	Return the counter maximum position (content length in units of 188 bytes). More...

void	MHEG5StreamerSetCounterTrigger (MHEG5Stream *stream, S32BIT triggerId, S32BIT newValue)
	Add, remove or update a counter trigger for the stream. If the trigger does not exist, it will be added. If it already exists it will be updated if the new value is non-negative, otherwise it will be removed. More...

void	MHEG5StreamerRun (MHEG5Stream *stream)
	Start streaming IP content for a prepared request. More...

void	MHEG5StreamerStop (MHEG5Stream *stream)
	Stop streaming IP content. More...

void	MHEG5StreamerPause (MHEG5Stream *stream)
	Pause IP content streaming. More...

void	MHEG5StreamerResume (MHEG5Stream *stream)
	Resume IP content streaming after it was paused by MHEG5StreamerPause. More...

BOOLEAN	MHEG5StreamerIsRunable (MHEG5Stream *stream)
	Check that stream is runable (i.e. MHEG5StreamerPrepare has been called for it) More...

void	MHEG5StreamerRemove (MHEG5Stream *stream)
	Remove streaming IP request. More...

void	MHEG5StreamerNotifyStreamStarted (MHEG5Stream *stream)
	Notify that a stream has started. This notification comes from the audio/video deocder. More...

void	MHEG5StreamerNotifyStreamStopped (MHEG5Stream *stream)
	Notify that a stream has stopped. This notification comes from the audio/video deocder. More...

void	MHEG5StreamerMeasurePerformance (MHEG5String url, MHEG5Int maxBytes, MHEG5Program program)
	Measure streaming performance (bytes per second). The result is returned to the resident program. More...

void	MHEG5StreamerAbortMeasurement (MHEG5Program *program)
	Abort streaming performance measurement. More...

void	MHEG5StreamerSetActiveState (BOOLEAN activeState)
	Set the active state of the streamer. When it is not active, it is allowed to buffer data but not to send it to the external application. More...

void	MHEG5StreamerClose (void)
	Close the IC streaming module. More...

void	MHEG5streamerNotifyStreamingReady (void)
	Handle notification that the external application is ready to handle IP stream data. More...

void	MHEG5StreamerRefresh (void)
	Refresh any running IC streams - called when user preferences have changed. More...

Detailed Description

API for IC streamer.

Date: 21/10/2010

Author: Omri Barel

Function Documentation

void MHEG5StreamerAbortMeasurement ( MHEG5Program * program )

Abort streaming performance measurement.

Parameters

program Running program object

Returns: Nothing

void MHEG5StreamerClose ( void )

Close the IC streaming module.

Returns: void

S32BIT MHEG5StreamerGetCounterMaxPosition ( MHEG5Stream * stream )

Return the counter maximum position (content length in units of 188 bytes).

Parameters

stream Stream object to use

Returns: Counter max position, -1 if unknown

S32BIT MHEG5StreamerGetCounterPosition ( MHEG5Stream * stream )

Return the current counter position (in units of 188 bytes).

Parameters

stream Stream object to use

Returns: Current counter position

BOOLEAN MHEG5StreamerIsRunable ( MHEG5Stream * stream )

Check that stream is runable (i.e. MHEG5StreamerPrepare has been called for it)

Parameters

stream Stream object to use

Returns: TRUE if stream is known to Streamer module

void MHEG5StreamerMeasurePerformance	(	MHEG5String *	url,
		MHEG5Int	maxBytes,
		MHEG5Program *	program
	)

Measure streaming performance (bytes per second). The result is returned to the resident program.

Parameters

url	URL to use for performance estimates
maxBytes	Maximum number of bytes to fetch
program	Program object to receive the measured speed

Returns: Nothing

void MHEG5streamerNotifyStreamingReady ( void )

Handle notification that the external application is ready to handle IP stream data.

Returns: Nothing

void MHEG5StreamerNotifyStreamStarted ( MHEG5Stream * stream )

Notify that a stream has started. This notification comes from the audio/video deocder.

Parameters

stream Stream object

Returns: void

void MHEG5StreamerNotifyStreamStopped ( MHEG5Stream * stream )

Notify that a stream has stopped. This notification comes from the audio/video deocder.

Parameters

stream Stream object

Returns: void

E_MhegErr MHEG5StreamerOpen	(	void *	buffer,
		U32BIT	size,
		U32BIT	taskPriority
	)

Open the IC streaming module.

Parameters

buffer	Buffer to use for content buffering
size	Size of buffer in bytes
taskPriority	Streamer task priority

Returns: void

void MHEG5StreamerPause ( MHEG5Stream * stream )

Pause IP content streaming.

Parameters

stream Stream object to pause

Returns: void

void MHEG5StreamerPrepare ( MHEG5Stream * stream )

Prepare for retrieval of a stream from the IP connection.

Parameters

stream Stream object to prepare

Returns: Nothing

void MHEG5StreamerRefresh ( void )

Refresh any running IC streams - called when user preferences have changed.

Returns: void

void MHEG5StreamerRemove ( MHEG5Stream * stream )

Remove streaming IP request.

Parameters

stream Stream object to remove

Returns: void

void MHEG5StreamerReset ( void )

Reset the IC streaming module.

Returns: None.

void MHEG5StreamerResume ( MHEG5Stream * stream )

Resume IP content streaming after it was paused by MHEG5StreamerPause.

Parameters

stream Stream object to resume

Returns: void

void MHEG5StreamerRun ( MHEG5Stream * stream )

Start streaming IP content for a prepared request.

Parameters

stream Stream object to run

Returns: void

void MHEG5StreamerSetActiveState ( BOOLEAN activeState )

Set the active state of the streamer. When it is not active, it is allowed to buffer data but not to send it to the external application.

Parameters

activeState Active state (TRUE=active, FALSE=inactive)

Returns: void

void MHEG5StreamerSetCounterEndPosition ( MHEG5Stream * stream )

Set the counter end position of a stream in the streamer. This function uses the counter end position as set in the stream object.

Parameters

stream Stream object to use

Returns: Nothing

void MHEG5StreamerSetCounterPosition ( MHEG5Stream * stream )

Set the counter position of a stream in the streamer. This function uses the counter position as set in the stream object.

Parameters

stream Stream object to use

Returns: Nothing

void MHEG5StreamerSetCounterTrigger	(	MHEG5Stream *	stream,
		S32BIT	triggerId,
		S32BIT	newValue
	)

Add, remove or update a counter trigger for the stream. If the trigger does not exist, it will be added. If it already exists it will be updated if the new value is non-negative, otherwise it will be removed.

Parameters

stream	Stream object to use
triggerId	Counter trigger identifier
newValue	New trigger value, negative to remove the trigger

Returns: Nothing

void MHEG5StreamerStop ( MHEG5Stream * stream )

Stop streaming IP content.

Parameters

stream Stream object to stop

Returns: void

Enumerations

Functions

Detailed Description

Function Documentation