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SPHDEC1 - Speech Decoder Interface

Macros

#define SPHDEC1_EOK   ISPHDEC1_EOK
 
#define SPHDEC1_EFAIL   ISPHDEC1_EFAIL
 
#define SPHDEC1_EUNSUPPORTED   ISPHDEC1_EUNSUPPORTED
 
#define SPHDEC1_ETIMEOUT   VISA_ETIMEOUT
 Timeout occurred.
#define SPHDEC1_FOREVER   VISA_FOREVER
 Special value for timeout parameter indicating never timeout.
#define SPHDEC1_VISATYPE   "ti.sdo.ce.speech1.ISPHDEC1"
 The VISA type.
#define SPHDEC1_STUBSNAME   "SPHDEC1_STUBS"
 Name of stub functions. Use this name when registering the SPHDEC1_STUBS functions with Engine_addStubFxns.

Typedefs

typedef VISA_Handle SPHDEC1_Handle
 Opaque handle to a SPHDEC1 codec.
typedef ISPHDEC1_Params SPHDEC1_Params
 Defines the creation time parameters for all ISPHDEC1 instance objects.
typedef ISPHDEC1_InArgs SPHDEC1_InArgs
 Defines the input arguments for all ISPHDEC1 instance process function.
typedef ISPHDEC1_OutArgs SPHDEC1_OutArgs
 Defines the run time output arguments for all ISPHDEC1 instance objects.
typedef ISPHDEC1_Cmd SPHDEC1_Cmd
 Defines the control commands for the ISPHDEC1 module.
typedef ISPHDEC1_DynamicParams SPHDEC1_DynamicParams
 This structure defines the codec parameters that can be modified after creation via ISPHDEC1_Fxns.control().
typedef ISPHDEC1_Status SPHDEC1_Status
 Defines instance status parameters.

Functions

Int32 SPHDEC1_control (SPHDEC1_Handle handle, SPHDEC1_Cmd id, SPHDEC1_DynamicParams *params, SPHDEC1_Status *status)
 Execute the control() method in this instance of a speech decoder algorithm.
SPHDEC1_Handle SPHDEC1_create (Engine_Handle e, String name, SPHDEC1_Params *params)
 Create an instance of a speech decoder algorithm.
Void SPHDEC1_delete (SPHDEC1_Handle handle)
 Delete the instance of a speech decoder algorithm.
Int32 SPHDEC1_process (SPHDEC1_Handle handle, XDM1_SingleBufDesc *inBuf, XDM1_SingleBufDesc *outBuf, SPHDEC1_InArgs *inArgs, SPHDEC1_OutArgs *outArgs)
 Execute the process() method in this instance of a speech decoder algorithm.
XDAS_Int32 SPHDEC1_processAsync (SPHDEC1_Handle handle, XDM1_SingleBufDesc *inBuf, XDM1_SingleBufDesc *outBuf, SPHDEC1_InArgs *inArgs, SPHDEC1_OutArgs *outArgs)
 Perform asynchronous submission to this instance of a speech decoder algorithm.
XDAS_Int32 SPHDEC1_processWait (SPHDEC1_Handle handle, XDM1_SingleBufDesc *inBuf, XDM1_SingleBufDesc *outBuf, SPHDEC1_InArgs *inArgs, SPHDEC1_OutArgs *outArgs, UInt timeout)
 Wait for a return message from a previous invocation of SPHDEC1_processAsync() in this instance of an speech decoder algorithm.

Detailed Description

This is the SPHDEC1 speech decoder interface. Several of the data types in this API are specified by the XDM ISPHDEC1 interface; please see the XDM documentation for those details.


Macro Definition Documentation

#define SPHDEC1_EOK   ISPHDEC1_EOK

Success.

#define SPHDEC1_EFAIL   ISPHDEC1_EFAIL

General failure.

#define SPHDEC1_EUNSUPPORTED   ISPHDEC1_EUNSUPPORTED

Request is unsupported.

#define SPHDEC1_ETIMEOUT   VISA_ETIMEOUT

Timeout occurred.

#define SPHDEC1_FOREVER   VISA_FOREVER

Special value for timeout parameter indicating never timeout.

#define SPHDEC1_VISATYPE   "ti.sdo.ce.speech1.ISPHDEC1"

The VISA type.

#define SPHDEC1_STUBSNAME   "SPHDEC1_STUBS"

Name of stub functions. Use this name when registering the SPHDEC1_STUBS functions with Engine_addStubFxns.

See also:
Engine_addStubFxns

Typedef Documentation

Opaque handle to a SPHDEC1 codec.

Defines the creation time parameters for all ISPHDEC1 instance objects.

@remarks    Some of the fields in this structure are optional and depend
            on the class of speech decoder you're creating.

@remarks This structure may be extended by individual codec implementations allowing customization with vendor specific parameters.  The presence of vendor specific extensions will be detected by the value of the @c size parameter.
Remarks:
The size field must be correctly set by the caller. See https://processors.wiki.ti.com/index.php/Extending_data_structures_in_XDM for more details.

Defines the input arguments for all ISPHDEC1 instance process function.

Defines the run time output arguments for all ISPHDEC1 instance objects.

@remarks This structure may be extended by individual codec implementations allowing customization with vendor specific parameters.  The presence of vendor specific extensions will be detected by the value of the @c size parameter.
Remarks:
The size field must be correctly set by the caller. See https://processors.wiki.ti.com/index.php/Extending_data_structures_in_XDM for more details.
@sa         ISPHDEC1_Fxns::process()

Defines the control commands for the ISPHDEC1 module.

Remarks:
This ID can be extended in IMOD interface for additional control commands.
See also:
XDM_CmdId
ISPHDEC1_Fxns::control()

This structure defines the codec parameters that can be modified after creation via ISPHDEC1_Fxns.control().

@remarks    It is not necessary that a given implementation support all
            dynamic parameters to be configurable at run time.  If a
            particular algorithm does not support run-time updates to
            a parameter that the application is attempting to change
            at runtime, it may indicate this as an error.

@remarks This structure may be extended by individual codec implementations allowing customization with vendor specific parameters.  The presence of vendor specific extensions will be detected by the value of the @c size parameter.
Remarks:
The size field must be correctly set by the caller. See https://processors.wiki.ti.com/index.php/Extending_data_structures_in_XDM for more details.
@sa         ISPHDEC1_Fxns::control()

Defines instance status parameters.

@remarks This structure may be extended by individual codec implementations allowing customization with vendor specific parameters.  The presence of vendor specific extensions will be detected by the value of the @c size parameter.
Remarks:
The size field must be correctly set by the caller. See https://processors.wiki.ti.com/index.php/Extending_data_structures_in_XDM for more details.
@sa         ISPHDEC1_Fxns::control()


Function Documentation

Int32 SPHDEC1_control ( SPHDEC1_Handle  handle,
SPHDEC1_Cmd  id,
SPHDEC1_DynamicParams params,
SPHDEC1_Status status 
)

Execute the control() method in this instance of a speech decoder algorithm.

Parameters:
[in]handleHandle to a created speech decoder instance.
[in]idCommand id for XDM control operation.
[in]paramsRuntime control parameters used for decoding.
[out]statusStatus info upon completion of decode operation.
Precondition:
handle is a valid (non-NULL) speech decoder handle and the speech decoder is in the created state.
Return values:
SPHDEC1_EOKSuccess.
SPHDEC1_EFAILFailure.
SPHDEC1_EUNSUPPORTEDUnsupported request.
Remarks:
This is a blocking call, and will return after the control command has been executed.
See also:
SPHDEC1_create()
SPHDEC1_delete()
ISPHDEC1_Fxns.control()
SPHDEC1_Handle SPHDEC1_create ( Engine_Handle  e,
String  name,
SPHDEC1_Params params 
)

Create an instance of a speech decoder algorithm.

Instance handles must not be concurrently accessed by multiple threads;
each thread must either obtain its own handle (via SPHDEC1_create()) or
explicitly serialize access to a shared handle.

@param[in]  e       Handle to an opened engine.
@param[in]  name    String identifier of the type of speech decoder
                    to create.
@param[in]  params  Creation parameters.

@retval     NULL            An error has occurred.
@retval     non-NULL        The handle to the newly created speech decoder
                            instance.

@remarks    @c params is optional.  If it's not supplied, codec-specific
            default params will be used.

@remark     Depending on the configuration of the engine opened, this
            call may create a local or remote instance of the speech1
            decoder.

@remarks In general, @c name is the name of the codec configured by the system integrator. However, an optional "argument string" may be appended to the codec name, to allow the codec's configured priority and/or the heaps where its memory will be allocated, to be overridden.  This optional argument string is of the form <b>":priority"</b>, <b>":priority:flag"</b>, or <b>"::flag"</b>.
Remarks:
priority is the new priority to create the codec with.
The flag must be either 0 or 1, and if 1, all memory allocated for the codec will be in the heap that corresponds to IALG_EXTERNAL. If flag is 0, the memory for the codec will be allocated from the heaps it has requested. For example, if a codec named "mp3" has been configured into the system, setting name to "mp3:4" would cause the codec to be created at priority 4, instead of whatever priority was configured. This feature is useful if more than one instance of the codec are to be created at different priorities.
The flag can be used to prevent the codec from using any internal memory, for example, if it is to be run at the same time as another codec that must use internal memory, and there is insufficient internal memory for both.
@sa         Engine_open()
@sa         SPHDEC1_delete()
Void SPHDEC1_delete ( SPHDEC1_Handle  handle)

Delete the instance of a speech decoder algorithm.

Parameters:
[in]handleHandle to a created speech decoder instance.
Remarks:
Depending on the configuration of the engine opened, this call may delete a local or remote instance of the speech decoder.
Precondition:
handle is a valid (non-NULL) handle which is in the created state.
Postcondition:
All resources allocated as part of the SPHDEC1_create() operation (memory, DMA channels, etc.) are freed.
See also:
SPHDEC1_create()
Int32 SPHDEC1_process ( SPHDEC1_Handle  handle,
XDM1_SingleBufDesc inBuf,
XDM1_SingleBufDesc outBuf,
SPHDEC1_InArgs inArgs,
SPHDEC1_OutArgs outArgs 
)

Execute the process() method in this instance of a speech decoder algorithm.

Parameters:
[in]handleHandle to a created speech decoder instance.
[in]inBufA buffer descriptor containing an input buffer.
[out]outBufA buffer descriptor containing an output buffer.
[in]inArgsInput Arguments.
[out]outArgsOutput Arguments.
Precondition:
handle is a valid (non-NULL) speech decoder handle and the speech decoder is in the created state.
Return values:
SPHDEC1_EOKSuccess.
SPHDEC1_EFAILFailure.
SPHDEC1_EUNSUPPORTEDUnsupported request.
Remarks:
Since the SPHDEC1 decoder contains support for asynchronous buffer submission and retrieval, this API becomes known as synchronous in nature.
This is a blocking call, and will return after the data has been decoded.
The buffers supplied to SPHDEC1_process() may have constraints put on them. For example, in dual-processor, shared memory architectures, where the codec is running on a remote processor, the buffers may need to be physically contiguous. Additionally, the remote processor may place restrictions on buffer alignment.
See also:
SPHDEC1_create()
SPHDEC1_delete()
SPHDEC1_control()
SPHDEC1_processAsync()
SPHDEC1_processWait()
ISPHDEC1_Fxns.process()
XDAS_Int32 SPHDEC1_processAsync ( SPHDEC1_Handle  handle,
XDM1_SingleBufDesc inBuf,
XDM1_SingleBufDesc outBuf,
SPHDEC1_InArgs inArgs,
SPHDEC1_OutArgs outArgs 
)

Perform asynchronous submission to this instance of a speech decoder algorithm.

Parameters:
[in]handleHandle to a created speech decoder instance.
[in]inBufA buffer descriptor containing the input buffer.
[out]outBufA buffer descriptor containing the output buffer.
[in]inArgsInput Arguments.
[out]outArgsOutput Arguments.
Precondition:
handle is a valid (non-NULL) speech decoder handle and the speech decoder is in the created state.
Return values:
SPHDEC1_EOKSuccess.
SPHDEC1_EFAILFailure.
SPHDEC1_EUNSUPPORTEDUnsupported request.
Remarks:
This API is the asynchronous counterpart to the process() method. It allows for buffer and argument submission without waiting for retrieval. A response is retrieved using the SPHDEC1_processWait() API.
The buffers supplied to SPHDEC1_processAsync() may have constraints put on them. For example, in dual-processor, shared memory architectures, where the codec is running on a remote processor, the buffers may need to be physically contiguous. Additionally, the remote processor may place restrictions on buffer alignment.
See also:
SPHDEC1_create()
SPHDEC1_delete()
SPHDEC1_control()
SPHDEC1_process()
SPHDEC1_processWait()
ISPHDEC1_Fxns.process()
XDAS_Int32 SPHDEC1_processWait ( SPHDEC1_Handle  handle,
XDM1_SingleBufDesc inBuf,
XDM1_SingleBufDesc outBuf,
SPHDEC1_InArgs inArgs,
SPHDEC1_OutArgs outArgs,
UInt  timeout 
)

Wait for a return message from a previous invocation of SPHDEC1_processAsync() in this instance of an speech decoder algorithm.

Parameters:
[in]handleHandle to a created speech decoder instance.
[in]inBufA buffer descriptor containing the input buffer.
[out]outBufA buffer descriptor containing the output buffer.
[in]inArgsInput Arguments.
[out]outArgsOutput Arguments.
[in]timeoutAmount of "time" to wait (from 0 -> SPHDEC1_FOREVER)
Precondition:
handle is a valid (non-NULL) speech decoder handle and the speech decoder is in the created state.
Return values:
SPHDEC1_EOKSuccess.
SPHDEC1_EFAILFailure.
SPHDEC1_EUNSUPPORTEDUnsupported request.
SPHDEC1_ETIMEOUTOperation timed out.
Remarks:
This is a blocking call, and will return after the data has been decoded.
"Polling" is supported by using a timeout of 0. Waiting forever is supported by using a timeout of SPHDEC1_FOREVER.
There must have previously been an invocation of the SPHDEC1_processAsync() API.
The buffers supplied to SPHDEC1_processAsync() may have constraints put on them. For example, in dual-processor, shared memory architectures, where the codec is running on a remote processor, the buffers may need to be physically contiguous. Additionally, the remote processor may place restrictions on buffer alignment.
See also:
SPHDEC1_create()
SPHDEC1_delete()
SPHDEC1_control()
SPHDEC1_process()
SPHDEC1_processAsync()
Copyright 2013, Texas Instruments Incorporated