Video and Image Processing Up Conversion Example Design

Video and Image Processing Up Conversion Example Design
Simulate the Data Path Component in DSP Builder
The simulation of video systems is a computationally expensive task, and
can take several hours to perform a gate level simulation of a frame of
high resolution video. However, DSP Builder can accelerate simulation of
the Video and Image Processing Suite MegaCore functions (by a factor of
approximately 30) using transaction level simulation.
This increase opens the door to rapid prototyping and experimentation
leading to higher image quality. This section describes how to simulate
the design using both fast functional simulation and traditional cycle
accurate simulation.
For convenience, the example design contains pre-generated sample
input and output video files in .avi format. The vip_car_out.avi file
contains several frames of simulated video. To view the image input and
output files, open the .avi files in Windows Media Player.
You can change a parameter for any of the MegaCore functions described
in the previous section by double-clicking the appropriate block in DSP
Builder to display the MegaWizard interface. The associated files are
regenerated with the new parameters when you click Finish in the
MegaWizard interface.
Fast Functional Simulation
The example model contains a Simulation Accelerator block. When this
block displays Bit-accurate simulation (faster), all Video and
Image Processing Suite blocks are simulated at the transaction level,
resulting in significant simulation acceleration compared to traditional
cycle-accurate simulation (Figure 31).
Figure 31. Simulation Accelerator Block set for Bit-Accurate Simulation
f For more information about fast functional simulation, refer to the Using
the Simulation Accelerator chapter in the DSP Builder User Guide.
algebraic_loop_cut_dil Block
This block is used to prevent Simulink from detecting an algebraic loop
between the Deinterlacer and the two Avalon-MM master interfaces.
30 Altera Corporation
Preliminary