Functions |
IMGDEC_Handle | IMGDEC_create (Engine_Handle e, String name, IMGDEC_Params *params) |
| Create an instance of an image decoder algorithm.
|
Int32 | IMGDEC_process (IMGDEC_Handle handle, XDM_BufDesc *inBufs, XDM_BufDesc *outBufs, IMGDEC_InArgs *inArgs, IMGDEC_OutArgs *outArgs) |
| Execute the process() method in this instance of a image decoder algorithm.
|
Int32 | IMGDEC_control (IMGDEC_Handle handle, IMGDEC_Cmd id, IMGDEC_DynamicParams *params, IMGDEC_Status *status) |
| Execute the control() method in this instance of an image decoder algorithm.
|
Void | IMGDEC_delete (IMGDEC_Handle handle) |
| Delete the instance of a image decoder algorithm.
|
XDAS_Int32 | IMGDEC_processAsync (IMGDEC_Handle handle, XDM_BufDesc *inBufs, XDM_BufDesc *outBufs, IMGDEC_InArgs *inArgs, IMGDEC_OutArgs *outArgs) |
| Perform asynchronous submission to this instance of an image decoder algorithm.
|
XDAS_Int32 | IMGDEC_processWait (IMGDEC_Handle handle, XDM_BufDesc *inBufs, XDM_BufDesc *outBufs, IMGDEC_InArgs *inArgs, IMGDEC_OutArgs *outArgs, UInt timeout) |
| Wait for a return message from a previous invocation of IMGDEC_processAsync() in this instance of an image decoder algorithm.
|
Detailed Description
This is the IMGDEC image decoder interface. Several of the data types in this API are specified by the XDM interface; please see the XDM documentation for those details.
Macro Definition Documentation
Special value for timeout parameter indicating never timeout.
#define IMGDEC_VISATYPE "ti.sdo.ce.image.IIMGDEC" |
#define IMGDEC_STUBSNAME "IMGDEC_STUBS" |
Name of stub functions. Use this name when registering the IMGDEC_STUBS functions with Engine_addStubFxns.
- See also:
- Engine_addStubFxns
Typedef Documentation
Defines instance status parameters (read-only).
@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.
Opaque handle to a IMGDEC codec.
This structure defines the parameters necessary to create an instance of a image decoder object.
Defines the input arguments for all IIMGDEC instance process() function.
@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.
Defines the run time output arguments for all IIMGDEC 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.
This structure defines the codec parameters that can be modified after creation via control() calls.
@remarks It is not necessary that 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.
Function Documentation
Create an instance of an image decoder algorithm.
Instance handles must not be concurrently accessed by multiple threads;
each thread must either obtain its own handle (via IMGDEC_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 image decoder.
to create.
@param[in] params Creation parameters.
@retval NULL An error has occurred.
@retval non-NULL The handle to the newly created image 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 image
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>.
Execute the process() method in this instance of a image decoder algorithm.
- Parameters:
-
[in] | handle | Handle to a created image decoder instance. |
[in] | inBufs | A buffer descriptor containing input buffers. |
[out] | outBufs | A buffer descriptor containing output buffers. |
[in] | inArgs | Input Arguments. |
[out] | outArgs | Output Arguments. |
- Precondition:
handle
is a valid (non-NULL) image decoder handle and the image decoder is in the created state.
- Return values:
-
- See also:
- IMGDEC_create()
-
IMGDEC_delete()
-
IMGDEC_control()
-
IMGDEC_processAsync()
-
IMGDEC_processWait()
-
IIMGDEC_Fxns::process() - the reflected algorithm interface, which may contain further usage details.
Execute the control() method in this instance of an image decoder algorithm.
- Parameters:
-
[in] | handle | Handle to a created image decoder instance. |
[in] | id | Command id for XDM control operation. |
[in] | params | Runtime control parameters used for decoding. |
[out] | status | Status info upon completion of decode operation. |
- Precondition:
handle
is a valid (non-NULL) image decoder handle and the image decoder is in the created state.
- Return values:
-
- See also:
- IMGDEC_create()
-
IMGDEC_delete()
-
IIMGDEC_Fxns::control()
Delete the instance of a image decoder algorithm.
- Parameters:
-
[in] | handle | Handle to a created image decoder instance. |
- Precondition:
handle
is a valid (non-NULL) handle which is in the created state.
- Postcondition:
- All resources allocated as part of the IMGDEC_create() operation (memory, DMA channels, etc.) are freed.
- See also:
- IMGDEC_create()
Perform asynchronous submission to this instance of an image decoder algorithm.
- Parameters:
-
[in] | handle | Handle to a created image decoder instance. |
[in] | inBufs | A buffer descriptor containing input buffers. |
[out] | outBufs | A buffer descriptor containing output buffers. |
[in] | inArgs | Input Arguments. |
[out] | outArgs | Output Arguments. |
- Precondition:
handle
is a valid (non-NULL) image decoder handle and the image decoder is in the created state.
- Return values:
-
- See also:
- IMGDEC_create()
-
IMGDEC_delete()
-
IMGDEC_control()
-
IMGDEC_process()
-
IMGDEC_processWait()
-
IIMGDEC_Fxns::process()
Wait for a return message from a previous invocation of IMGDEC_processAsync() in this instance of an image decoder algorithm.
- Parameters:
-
[in] | handle | Handle to a created image decoder instance. |
[in] | inBufs | A buffer descriptor containing input buffers. |
[out] | outBufs | A buffer descriptor containing output buffers. |
[in] | inArgs | Input Arguments. |
[out] | outArgs | Output Arguments. |
[in] | timeout | Amount of "time" to wait (from 0 -> IMGDEC_FOREVER) |
- Precondition:
handle
is a valid (non-NULL) image decoder handle and the image decoder is in the created state.
- Return values:
-
- See also:
- IMGDEC_create()
-
IMGDEC_delete()
-
IMGDEC_control()
-
IMGDEC_process()
-
IMGDEC_processAsync()