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Java Source Code / Java Documentation » 6.0 JDK Modules » Java Advanced Imaging » javax.sdp

Source Cross Reference

Class Diagram

Java Document (Java Doc)

javax.sdp .MediaDescription

MediaDescription
public interface MediaDescription extends Serializable,Cloneable(Code)
	A MediaDescription identifies the set of medias that may be received on a specific port or set of ports. It includes: a mediaType (e.g., audio, video, etc.) a port number (or set of ports) a protocol to be used (e.g., RTP/AVP) a set of media formats which correspond to Attributes associated with the media description. The following is an example m=audio 60000 RTP/AVP 0 a=rtpmap:0 PCMU/8000 This example identifies that the client can receive audio on port 60000 in format 0 which corresponds to PCMU/8000. Please refer to IETF RFC 2327 for a description of SDP. author: deruelle version: 1.0

Method Summary
public void	addAttribute(AttributeField at)
public void	addDynamicPayloads(Vector payloadNames, Vector payloadValues) Adds dynamic media types to the description.
public String	getAttribute(String name) Returns the value of the specified attribute.
public Vector	getAttributes(boolean create) Returns the set of attributes for this Description as a Vector of Attribute objects in the order they were parsed.
public int	getBandwidth(String name) Returns the integer value of the specified bandwidth name.
public Vector	getBandwidths(boolean create) Returns the Bandwidth of the specified type.
public Connection	getConnection() Returns the connection information associated with this object.
public Info	getInfo() Returns value of the info field (i=) of this object.
public Key	getKey() Returns the key data.
public Media	getMedia() Return the Media field of the description.
public Vector	getMimeParameters() Returns a Vector containing a string of parameters for each of the codecs in this description. A parameter string is computed for each codec. The parameter string is computed in the following fashion. The rate is extracted from the rtpmap or static data. The number of channels is extracted from the rtpmap or static data. The ptime is extracted from the ptime attribute. The maxptime is extracted from the maxptime attribute. Any additional parameters are extracted from the ftmp attribute. throws: SdpException - if there is a problem extracting the parameters.
public Vector	getMimeTypes() Returns a Vector containing a string indicating the MIME type for each of the codecs in this description. A MIME value is computed for each codec in the media description. The MIME type is computed in the following fashion: The type is the mediaType from the media field. The subType is determined by the protocol. The result is computed as the string of the form: type + '/' + subType The subType portion is computed in the following fashion. RTP/AVP the subType is returned as the codec name.
public Vector	getPreconditionFields()
public void	removeAttribute(String name) Removes the attribute specified by the value parameter.
public void	removeBandwidth(String name) Removes the specified bandwidth type.
public void	setAttribute(String name, String value)
public void	setAttributes(Vector Attributes) Adds the specified Attribute to this Description object.
public void	setBandwidth(String name, int value) Sets the value of the specified bandwidth type.
public void	setBandwidths(Vector bandwidths)
public void	setConnection(Connection conn)
public void	setInfo(Info i) Sets the i= field of this object.
public void	setKey(Key key) Sets encryption key information.
public void	setMedia(Media media) Set the Media field of the description.
public void	setPreconditionFields(Vector segPrecondition)
public void	setPreconditions(PreconditionFields segPrecondition)

Method Detail

addAttribute
public void addAttribute(AttributeField at)(Code)
	Add Media Attribute based on an AttributeField value issued by Miguel Freitas (IT) PTInovacao Parameters: at - AttributeField

addDynamicPayloads
public void addDynamicPayloads(Vector payloadNames, Vector payloadValues) throws SdpException(Code)
	Adds dynamic media types to the description. Parameters: payloadNames - a Vector of String - each one the name of a dynamic payload to be added (usually an integer largerthan SdpConstants.AVP_DYNAMIC_MIN). Parameters: payloadValues - a Vector of String - each contains the value describing the correlated dynamic payloads to be added throws: SdpException - if either vector is null or empty.if the vector sizes are unequal.

getAttribute
public String getAttribute(String name) throws SdpParseException(Code)
	Returns the value of the specified attribute. Parameters: name - the name of the attribute. throws: SdpParseException - the value of the named attribute

getAttributes
public Vector getAttributes(boolean create)(Code)
	Returns the set of attributes for this Description as a Vector of Attribute objects in the order they were parsed. Parameters: create - specifies whether to return null or a new empty Vector in case no attributes exists for this Description attributes for this Description

getBandwidth
public int getBandwidth(String name) throws SdpParseException(Code)
	Returns the integer value of the specified bandwidth name. Parameters: name - the name of the bandwidth type. throws: SdpParseException - the value of the named bandwidth

getBandwidths
public Vector getBandwidths(boolean create)(Code)
	Returns the Bandwidth of the specified type. Parameters: create - type of the Bandwidth to return the Bandwidth or null if undefined

getConnection
public Connection getConnection()(Code)
	Returns the connection information associated with this object. This may be null for SessionDescriptions if all Media objects have a connection object and may be null for Media objects if the corresponding session connection is non-null. connection

getInfo
public Info getInfo()(Code)
	Returns value of the info field (i=) of this object. value of the info field (i=) of this object.

getKey
public Key getKey()(Code)
	Returns the key data. the key data.

getMedia
public Media getMedia()(Code)
	Return the Media field of the description. the Media field of the description.

getMimeParameters
public Vector getMimeParameters() throws SdpException(Code)
	Returns a Vector containing a string of parameters for each of the codecs in this description. A parameter string is computed for each codec. The parameter string is computed in the following fashion. The rate is extracted from the rtpmap or static data. The number of channels is extracted from the rtpmap or static data. The ptime is extracted from the ptime attribute. The maxptime is extracted from the maxptime attribute. Any additional parameters are extracted from the ftmp attribute. throws: SdpException - if there is a problem extracting the parameters. a Vector containing a string of parameters for each of the codecs in this description.

getMimeTypes
public Vector getMimeTypes() throws SdpException(Code)
	Returns a Vector containing a string indicating the MIME type for each of the codecs in this description. A MIME value is computed for each codec in the media description. The MIME type is computed in the following fashion: The type is the mediaType from the media field. The subType is determined by the protocol. The result is computed as the string of the form: type + '/' + subType The subType portion is computed in the following fashion. RTP/AVP the subType is returned as the codec name. This will either be extracted from the rtpmap attribute or computed. other the protocol is returned as the subType. If the protocol is RTP/AVP and the rtpmap attribute for a codec is absent, then the codec name will be computed in the following fashion. String indexed in table SdpConstants.avpTypeNames if the value is an int greater than or equal to 0 and less than AVP_DEFINED_STATIC_MAX, and has been assigned a value. SdpConstant.RESERVED if the value is an int greater than or equal to 0 and less than AVP_DEFINED_STATIC_MAX, and has not been assigned a value. SdpConstant.UNASSIGNED An int greater than or equal to AVP_DEFINED_STATIC_MAX and less than AVP_DYNAMIC_MIN - currently unassigned. SdpConstant.DYNAMIC Any int less than 0 or greater than or equal to AVP_DYNAMIC_MIN throws: SdpException - if there is a problem extracting the parameters. a Vector containing a string indicating the MIME type for each of the codecs in this description

getPreconditionFields
public Vector getPreconditionFields()(Code)
	Get all Precondition Fields in the Media Descritpion issued by Miguel Freitas (IT) PTInovacao Vector precondition fields

removeAttribute
public void removeAttribute(String name)(Code)
	Removes the attribute specified by the value parameter. Parameters: name - the name of the attribute.

removeBandwidth
public void removeBandwidth(String name)(Code)
	Removes the specified bandwidth type. Parameters: name - the name of the bandwidth type.

setAttribute
public void setAttribute(String name, String value) throws SdpException(Code)
	Sets the value of the specified attribute Parameters: name - the name of the attribute. Parameters: value - the value of the named attribute. throws: SdpException - if the parameters are null

setAttributes
public void setAttributes(Vector Attributes) throws SdpException(Code)
	Adds the specified Attribute to this Description object. Parameters: Attributes - the attribute to add throws: SdpException - if the attribute is null

setBandwidth
public void setBandwidth(String name, int value) throws SdpException(Code)
	Sets the value of the specified bandwidth type. Parameters: name - the name of the bandwidth type. Parameters: value - the value of the named bandwidth type. throws: SdpException - if the name is null

setBandwidths
public void setBandwidths(Vector bandwidths) throws SdpException(Code)
	set the value of the Bandwidth with the specified type Parameters: bandwidths - type of the Bandwidth object whose value is requested throws: SdpException - if vector is null

setConnection
public void setConnection(Connection conn) throws SdpException(Code)
	Set the connection data for this entity Parameters: conn - to set throws: SdpException - if the connexion is null

setInfo
public void setInfo(Info i) throws SdpException(Code)
	Sets the i= field of this object. Parameters: i - to set throws: SdpException - if the info is null

setKey
public void setKey(Key key) throws SdpException(Code)
	Sets encryption key information. This consists of a method and an encryption key included inline. Parameters: key - the encryption key data; depending on method may be null throws: SdpException - if the key is null

setMedia
public void setMedia(Media media) throws SdpException(Code)
	Set the Media field of the description. Parameters: media - to set throws: SdpException - if the media field is null

setPreconditionFields
public void setPreconditionFields(Vector segPrecondition) throws SdpException(Code)
	Set PreconditionFields for the Media Description issued by Miguel Freitas (IT) PTInovacao Parameters: segPrecondition - Vector with values to ser throws: SdpException -

setPreconditions
public void setPreconditions(PreconditionFields segPrecondition)(Code)
	Set PreconditionFields for the Media Description issued by Miguel Freitas (IT) PTInovacao Parameters: segPrecondition - PreconditionFields with values to set

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