Altera Video and Image Processing Suite - Manual (Page 297)

Table A-14: Method Calls for c_av_st_video_sink_bfm_’SINK Class
This class does not have additional members to those of the base class.
Method Call Description
function new(mailbox#(c_av_st_video_item)m_
vid);
Constructor.
task start;
The start method simply waits until the reset
of the Avalon-ST sink BFM goes inactive, then
calls the
receive_video()
task.
task receive_video;
The
receive_video
task continually drives
the Avalon-ST sink BFM’s ready signal in
accordance with the probability settings in the
base class. It also continually captures
signal_
received_transaction
events from the
Avalon-ST sink BFM and uses the Avalon-ST
sink BFM API to read bus data.
Bus data is decoded according to the Avalon-
ST video specification and data is packed into
an object of the appropriate type (video,
control or, user). The object is then put into
the mailbox.
c_av_st_video_source_bfm_’SOURCE
The declaration for the c_av_st_video_source_bfm_’SOURCE class:
‘define CLASSNAME c_av_st_video_source_bfm_’SOURCE
class ‘CLASSNAME extends c_av_st_video_source_sink_base;
Table A-15: Method Calls for c_av_st_video_source_bfm_’SOURCE Class
This class does not have additional members to those of the base class.
Method Call Description
function new(mailbox#(c_av_st_video_item)m_
vid)
Constructor.
task start;
The start method simply waits until the reset
of the Avalon-ST source BFM goes inactive,
then continually calls the
send_video()
task.
UG-VIPSUITE
2015.05.04
c_av_st_video_source_bfm_’SOURCE A-29
Avalon-ST Video Verification IP Suite Altera Corporation
Send Feedback