Defines all of the operations on IVIDDEC3 objects.
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#include <ividdec3.h>
Detailed Description
Defines all of the operations on IVIDDEC3 objects.
Field Documentation
XDAIS algorithm interface.
- See also:
- IALG_Fxns
Basic video decoding call.
- Parameters:
-
[in] | handle | Handle to an algorithm instance. |
[in,out] | inBufs | Input buffer descriptors. |
[in,out] | outBufs | Output buffer descriptors. The algorithm may modify the output buffer pointers. |
[in] | inArgs | Input arguments. This is a required parameter. |
[out] | outArgs | Ouput results. This is a required parameter. |
- Precondition:
inArgs
must not be NULL, and must point to a valid IVIDDEC3_InArgs structure.
-
outArgs
must not be NULL, and must point to a valid IVIDDEC3_OutArgs structure.
-
inBufs
must not be NULL, and must point to a valid XDM2_BufDesc structure.
-
When operating in "fullframe mode" (e.g. not in data sync mode),
inBufs->descs
[0].buf must not be NULL, and must point to a valid buffer of data that is at least inBufs->descs
[0].bufSize bytes in length.
-
When created with .inputDataMode (for
inBufs
) or .outputDataMode (for outBufs
) set to operate in "subframe mode" (e.g. data sync mode), the appropriate .descs[].usageMode field(s)'s XDM_MEMUSAGE_DATASYNC bit must be set. See XDM_MemoryUsageMode for more details.
-
outBufs
must not be NULL, and must point to a valid XDM2_BufDesc structure.
-
When operating in "fullframe mode" (e.g. not in data sync mode),
outBufs->buf
[0] must not be NULL, and must point to a valid buffer of data that is at least outBufs->bufSizes
[0] bytes in length.
-
Unless used in data sync mode, the buffers in
inBufs
and outBufs
are physically contiguous and owned by the calling application.
- Postcondition:
- The algorithm must not modify the contents of
inArgs
.
-
The algorithm must not modify the contents of
inBufs
, with the exception of inBufs.bufDesc
[].accessMask. That is, the data and buffers pointed to by these parameters must be treated as read-only.
-
The algorithm must modify the contents of
inBufs->descs
[].accessMask and appropriately indicate the mode in which each of the buffers in inBufs
were read. For example, if the algorithm only read from inBufs.descs
[0].buf using the algorithm processor, it could utilize XDM_SETACCESSMODE_READ to update the appropriate accessMask
fields. The application may utilize these returned values to appropriately manage cache.
-
The buffers in
inBufs
are owned by the calling application.
- Return values:
-
| IVIDDEC3_EOK | Success. |
| IVIDDEC3_EFAIL | General failure. See IVIDDEC3_Status::extendedError for more detailed further error conditions. |
| IVIDDEC3_EUNSUPPORTED | Request is unsupported. |
Control behavior of an algorithm.
- Parameters:
-
[in] | handle | Handle to an algorithm instance. |
[in] | id | Command id. See XDM_CmdId. |
[in] | params | Dynamic parameters. This is a required parameter. |
[out] | status | Output results. This is a required parameter. |
- Precondition:
handle
must be a valid algorithm instance handle.
-
params
must not be NULL, and must point to a valid IVIDDEC3_DynamicParams structure.
-
status
must not be NULL, and must point to a valid IVIDDEC3_Status structure.
-
If a buffer is provided in the
status->data
field, it must be physically contiguous and owned by the calling application.
- Postcondition:
- The algorithm must not modify the contents of
params
. That is, the data pointed to by this parameter must be treated as read-only.
-
If a buffer was provided in the
status->data
field, it is owned by the calling application.
- Return values:
-
| IVIDDEC3_EOK | Success. |
| IVIDDEC3_EFAIL | General failure. See IVIDDEC3_Status::extendedError for more detailed further error conditions. |
| IVIDDEC3_EUNSUPPORTED | Request is unsupported. |
The documentation for this struct was generated from the following file: