Retired Document
Important: Apple recommends that developers explore QTKit and Core Video for new development in this technology area. See QTKit Framework Reference and Core Video Programming Guide for more information.
QTSS Constants
QTSS_AttrDataType
Each QTSS attribute has an associated data type. The QTSS_AttrDataType enumeration defines
values for attribute data types. Having an attribute’s data type
helps the server and modules handle an attribute value without having
specific knowledge about the attribute.
typedef UInt32 QTSS_AttrDataType;
enum
{
qtssAttrDataTypeUnknown = 0,
qtssAttrDataTypeCharArray = 1,
qtssAttrDataTypeBool16 = 2,
qtssAttrDataTypeSInt16 = 3,
qtssAttrDataTypeUInt16 = 4,
qtssAttrDataTypeSInt32 = 5,
qtssAttrDataTypeUInt32 = 6,
qtssAttrDataTypeSInt64 = 7,
qtssAttrDataTypeUInt64 = 8,
qtssAttrDataTypeQTSS_Object = 9,
qtssAttrDataTypeQTSS_StreamRef= 10,
qtssAttrDataTypeFloat32 = 11,
qtssAttrDataTypeFloat64 = 12,
qtssAttrDataTypeVoidPointer = 13,
qtssAttrDataTypeTimeVal = 14,
qtssAttrDataTypeNumTypes = 15
};
Constants
qtssAttrDataTypeUnknownqtssAttrDataTypeCharArrayqtssAttrDataTypeBool16qtssAttrDataTypeSInt16qtssAttrDataTypeUInt16qtssAttrDataTypeSInt32qtssAttrDataTypeUInt32qtssAttrDataTypeSInt64qtssAttrDataTypeQTSS_ObjectqtssAttrDataTypeQTSS_StreamRefqtssAttrDataTypeFloat32qtssAttrDataTypeFloat64qtssAttrDataTypeVoidPointerqtssAttrDataTypeTimeValqtssAttrDataTypeNumTypes
QTSS_AttrPermission
The QTSS_AttrPermission data
type is an enumeration that defines values used to indicate whether
an attribute is readable, writable, or preemptive safe. The data
type of the qtssAttrPermissions attribute
of the QTSS_AttrInfoObject object
type is of type QTSS_AttrPermission.
typedef UInt32 QTSS_AttrPermission;
enum
{
qtssAttrModeRead = 1,
qtssAttrModeWrite = 2,
qtssAttrModePreempSafe= 4
};
Constants
qtssAttrModeReadqtssAttrModeWriteqtssAttrModePrempSafe
Discussion
Once set, attribute permissions cannot be changed.
QTSS_AddStreamFlags
The QTSS_AddStreamFlags enumeration
defines flags that specify stream options when adding RTP streams.
enum
{
qtssASFlagsAllowDestination = 0x00000001,
qtssASFlagsForceInterleave = 0x00000002
};
typedef UInt32 QTSS_AddStreamFlags;
Constants
qtssASFlagsAllowDestinationqtssASFlagsForceInterleave
QTSS_CliSesTeardownReason
The QTSS_CliSesTeardownReason enumeration
defines values that describe why a session is closing. The QTSS_RTPSessionState enumeration
is defined as
enum
{
qtssCliSesTearDownClientRequest = 0,
qtssCliSesTearDownUnsupportedMedia = 1,
qtssCliSesTearDownServerShutdown = 2,
qtssCliSesTearDownServerInternalErr = 3
};
typedef UInt32 QTSS_CliSesTeardownReason;
Constants
qtssCliSesTearDownClientRequestqtssCliSesTearDownUnsupportedMediaqtssCliSesTearDownServerShutdownqtssCliSesTearDownServerInternalErr
QTSS_EventType
A QTSS_EventType is
an unsigned 32-bit integer whose value uniquely identifies stream
I/O events.
enum
{
QTSS_ReadableEvent = 1,
QTSS_WriteableEvent = 2
};
typedef UInt32 QTSS_EventType;
Constants
QTSS_ReadableEventQTSS_WriteableEvent
QTSS_OpenFileFlags
A QTSS_OpenFileFlags is
an unsigned 32-bit integer whose value describes how a file is to be
opened.
enum
{
qtssOpenFileNoFlags = 0,
qtssOpenFileAsync = 1,
qtssOpenFileReadAhead= 2
};
typedef UInt32 QTSS_OpenFileFlags;
Constants
qtssOpenFileNoFlagsqtssOpenFileAsyncqtssOpenReadAhead
QTSS_RTPPayloadType
The QTSS_RTPPayloadType enumeration
defines values that a module uses to specify the stream’s payload
type when it adds an RTP stream to a client session. The enumeration
is defined as
enum
{
qtssUnknownPayloadType = 0,
qtssVideoPayloadType = 1,
qtssAudioPayloadType = 2
};
typedef UInt32 QTSS_RTPPayloadType;
Constants
qtssUnknownPayloadTypeqtssVideoPayloadTypeqtssAudioPayloadType
QTSS_RTPNetworkMode
The QTSS_RTPNetworkMode enumeration
defines values that describe the RTP network mode. These values
are set as the value of the qtssRTPStrNetworkMode
and qtssRTSPReqNetworkMode attributes
of objects of type qtssRTPStreamObjectType and qtssRTSPRequestObjectType,
respectively. The QTSS_RTPNetworkMode enumeration
is defined as
enum
{
qtssRTPNetworkModeDefault = 0,
qtssRTPNetworkModeMulticast = 1,
qtssRTPNetworkModeUnicast= 2
};
typedef UInt32 QTSS_RTPNetworkModes;
Constants
qtssRTPNetworkModeDefaultqtssRTPNetworkModeMulticastqtssRTPNetworkModeUnicast
QTSS_RTPSessionState
The QTSS_RTPSessionState enumeration
defines values that identify the state of an RTP session. The QTSS_RTPSessionState enumeration
is defined as
enum
{
qtssPausedState = 0,
qtssPlayingState = 1
};
typedef UInt32 QTSS_RTPSessionState;
Constants
qtssPausedStateqtssPlayingState
QTSS_RTPTransportType
The QTSS_RTPTransportType enumeration
defines values for RTP transports. The enumeration is defined as
enum
{
qtssRTPTransportTypeUDP = 0,
qtssRTPTransportTypeReliableUDP= 1,
qtssRTPTransportTypeTCP = 2
};
typedef UInt32 QTSS_RTPTransportType;
Constants
qtssRTPTransportTypeUDPqtssRTPTransportTypeReliableUDPqtssRTPTransportTypeTCP
QTSS_RTSPSessionType
The QTSS_RTSPSessionType enumeration
defines values that specify RTSP session types. The enumeration
is defined as
enum
{
qtssRTSPSession = 0,
qtssRTSPHTTPSession = 1,
qtssRTSPHTTPInputSession= 2
};
typedef UInt32 QTSS_RTSPSessionType;
Constants
qtssRTSPSessionqtssRTSPHTTPSessionqtssRTSPHTTPInputSession
Discussion
These session types are usually very short lived.
QTSS_ServerState
The QTSS_ServerState enumeration
defines values that describe the server’s state. Modules can set
the server’s state by setting the value of the qtssSvrState attribute
in the QTSS_ServerObject object.
The enumeration is defined as
enum
{
qtssStartingUpState = 0,
qtssRunningState = 1,
qtssRefusingConnectionsState= 2,
qtssFatalErrorState = 3,
qtssShuttingDownState = 4,
qtssIdleState = 5
};
typedef UInt32 QTSS_ServerState;
Constants
qtssStartingUpStateqtssRunningStateqtssRefusingConnectionsStateqtssFatalErrorStateqtssShuttingDownStateqtssIdleState
Copyright © 2002, 2009 Apple Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2009-06-01