Texas Instruments DM6467, User Manual

Page: 53 / 78

API Reference
4-17
4.2.1.11 IVIDENC1_DynamicParams
║ Description
This structure defines the run-time parameters for an algorithm instance
object.
║ Fields
Field Datatype Input/
Output Description
size XDAS_Int32 Input Size of the basic or extended (if being used) data
structure in bytes.
inputHeight XDAS_Int32 Input Height of input frame in pixels
Minimum Height Supported: 288
Note: Only resolutions that are multiples of 2are
supported.
inputWidth XDAS_Int32 Input Width of input frame in pixels.
Minimum Width Supported: 352
Note: Only resolutions that are multiples of 2 are
supported.
refFrameRate XDAS_Int32 Input Reference or input frame rate in fps * 1000. For
example, if the frame rate is 30, set this field to
30000.
Default : 30000
targetFrameRate XDAS_Int32 Input Target frame rate in fps * 1000. For example, if
the frame rate is 30, set this field to 30000.
Default: 30000
targetBitRate XDAS_Int32 Input Target bit-rate in bits per second. For example, if
the bit-rate is 2 Mbps, set this field to 2097152.
Default: 1000000
intraFrameInterval XDAS_Int32 Input Interval between two consecutive intra frames.
‰
0 - Only the first frame is intra and the rest of
all the encoded frames are inter frames
‰
1 - No inter frames (all intra frames)
‰
n - Intra frame after 'n-1 inter frames
generateHeader XDAS_Int32 Input Encode entire access unit or only header. See
XDM_EncMode
enumeration for details.
Default:
XDM_ENCODE_AU
captureWidth XDAS_Int32
Input If the field is set to:
‰
0 - Encoded image width is used as pitch.
‰
Any non-zero value, capture width is used
as pitch (if capture width is greater than
image width).
Default: 0
Not supported in this version of H264 Encoder.