Texas Instruments H.264 High Profile Encoder, User Manual

Page: 78 / 139

API Reference
4-34
4.2.1.6 IVIDENC2_Fxns
║ Description
This structure contains pointers to all the XDAIS and XDM interface functions.
║ Fields
Field Data Type Input/
Output Description
ialg IALG_Fxns
Input Structure containing pointers to all the XDAIS
interface functions.
For more details, see
TMS320 DSP Algorithm
Standard API Reference (literature number
SPRU360).
*process XDAS_Int32
Input Pointer to the
process()
function. See section 4.4
for more information
*control XDAS_Int32
Input Pointer to the
control()
function. See section 4.4
for more information
4.2.1.7 IVIDENC2_Params
║ Description
This structure defines the creation parameters for an algorithm instance object. Set this data
structure to
NULL
, if you are not sure of the values to be specified for these parameters. For the
default and supported values, see Table 4-5 .
║
Fields
Field Data Type Input/
Output Description
Size XDAS_Int32
Input Size of the base or extended (if being used)
data structure in bytes.
Supported Values:
sizeof(IVIDENC2_Params)
sizeof(IH264HPVENC_Params)
encodingPreset XDAS_Int32
Input Preset to control encoder quality. See
XDM_EncodingPreset
enumeration in
Table 4-1 for more details.
rateControlPreset XDAS_Int32
Input Preset to control rate control selection. See
IVIDEO_RateControlPreset
enumeration in Table 4-1 for more details.
maxHeight XDAS_Int32
Input Maximum video height to be supported in
pixels.