Texas Instruments DM6467, User Manual

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API Reference
4-19
the padding.
For example, the input width and height is 720x480. The application
should allocate the buffer for 736x480 resolution. Then the encoder
rounds off the width to 736 and sets the cropping flags in the
bitstream to crop 16 pixels along the right side of the image.
‰ For resolutions whose
inputHeight
is not a multiple of 16, the
encoder internally rounds the
inputHeight
to the next multiple of
16. The encoder internally pads along the height of the image to
make it a multiple of 16.In the bitstream the frame cropping flags are
set by the encoder to not display the padded pixels. The application
should have allocated an input buffer enough to perform the
padding.
For example, the input width and height is 1920x1080.The
application should allocate the buffer for 1920x1088 resolution.Then
the encoder rounds off the height to 1088 and sets the cropping flags
in the bitstream to crop 8 lines at the bottom of the image.
4.2.1.12 IVIDENC1_InArgs
║
Description
This structure defines the run-time input arguments 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.
inputID XDAS_Int32
Input Identifier to attach with the corresponding encoded
bit-stream frames.
topFieldFirs
tFlag XDAS_Int32 Input Flag to indicate the field order in interlaced content.
Not supported in this version of H264 Encoder.
4.2.1.13 IVIDENC1_Status
║
Description
This structure defines parameters that describe the status of 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.