readme_videoinedgedetection_bf533.txt

这个是balckfin533/561的视频输入和输出的源代码

Project Name: VideoInEdgeDetection_BF533.dpj

Project Type:
    ADSP-BF533 [X]
    ADSP-BF537 [ ]
    ADSP-BF561 [ ]

Hardware Used:

    **************************************
    **************************************
    ***  PLEASE READ THE RELEASE NOTE  ***
    ***  FOR SPECIFIC HARDWARE AND     ***
    ***  SOFTWARE CONFIGURATIONS       ***
    ***  SUPPORTED BY THIS APPLICATION ***
    **************************************
    **************************************

    ADSP-BF533 EZ-Kit Lite
    Analog Devices VisualDSP++ 4.5
    VisualDSP++ Emulator
    Video monitor with ITU-656 NTSC/PAL AV input
    DVD player with ITU-656 NTSC/PAL Output

System Services Components Used:
    DMA Manager                         [X]   Deferred Callback Manager   [X]
    Interrupt Manager                   [X]   Timer Module                [X]
    Power Management Module             [X]   Flag Module                 [X]
    External Bus Interface Unit Module  [X]   Port Module                 [X]

OVERVIEW
=========

    This application can capture a video frame from a video stream, perform
    edge detection on the captured video frame and render the edge detected output
    to a video monitor.

    Pressing and releasing button SW4 on the Ez-Kit captures a new video frame,
    Pressing and releasing button SW6 on the Ez-Kit toggles the display between
    captured video frame and edge detected output of the captured frame.

    Any changes to video input mode (ITU656 NTSC to PAL or vice-versa) will be
    automatically updated during next frame capture.

Supported Video inputs:
-----------------------
    ITU-656 NTSC Interlaced
    ITU-656 PAL Interlaced

Edge detection algorithms used:
--------------------------------
    SOBEL Method

Supported Video In/Out combinations:
------------------------------------
    ITU656 NTSC Input, Captured Frame/Edge Detected output in ITU656 NTSC format (rendered to TV monitor)
    ITU656 PAL  Input, Captured Frame/Edge Detected output in ITU656 PAL format (rendered to TV monitor)

Slide-Show Mode MACRO
---------------------
    This application can perform continuous frame capture (slide-show mode).
    The slide-show mode can be enabled by rebuilding the application with conditional
    compilation macro 'VIDEO_IN_SLIDE_SHOW' defined in preprocessor definitions
    section under 'VideoInEdgeDetection_BF533.dpj' project options.
    (Project -> Project Options
                - Project - Compile - Preprocessor - Preprocessor definitions)

    Frame capture button (SW4) is not used in slide-show mode. Button SW6 can be used
    to switch the display between original video frame/edge detected output

    By default, this application builds for Button-press frame capture (i.e, slide-show mode disabled by default)

RUNNING THE APPLICATION
========================

1. Hardware settings
--------------------
Video interface with ADSP-BF533 EZ-KIT Lite codecs
--------------------------------------------------

-- BF533 Ez Kit --

SW1:    1-OFF  2-OFF  3-OFF  4-OFF  5-OFF  6-OFF
SW2:    1-OFF  2-OFF  3-OFF  4-OFF  5-OFF  6-OFF
SW3:    1-OFF  2-OFF  3-OFF  4-OFF  5-OFF  6-ON
SW9:    1-ON   2-ON   3-ON   4-ON   5-OFF  6-OFF
SW10:    1-ON   2-ON
SW11:     1-OFF  2-ON
SW12:     1-ON   2-ON   3-ON  4-ON

2. ADSP-BF533 EZ-KIT Lite - Push Button functions
-------------------------------------------------

Push Button 1 (SW4): Captures a new ITU656 video frame (not used in slide-show mode)
Push Button 2 (SW5): Not used
Push Button 3 (SW6): Toggles display between captured frame and edge detected output on captured frame
Push Button 4 (SW7): Terminates Application

3. External connections
-----------------------
Connect a monitor to the EZ-Kit video-out connector and a video source
to the EZ-Kit video-in. The video connectors are the bank of 6 RCA-style jacks

Video interface with onboard video codecs in ADSP-BF533 EZ-Kit Lite

RCA-style jacks labeled J8
                                                J8
    +---------------------------------------------------+
    |          O          O < Video Out  O              |       (White)
    |          O          O              O < Video In   |       (Red)
    +---------------------------------------------------+

4. Operational Description
---------------------------

- Open the "VideoInEdgeDetection_BF533.dpg" project in the VisualDSP
  Integrated Development Environment (IDDE).

- Build the project by selecting "rebuild all" from the project menu.
  The project gets automatically loaded in to DSP

- Connect a video display monitor (Television) to the video output jack
  (white coloured RCA-style jack)

- Connect an ITU656 NTSC/PAL video source (DVD player) to video input jack
  (red coloured RCA-style jack)

- Run the executables by pressing "run" (F5) on the toolbar.
  Edge detected output of a captured frame will be displayed in the video monitor

- Use Push Buttons on ADSP-BF533 EZ-KIT Lite to switch functionality

REFERENCES
==========
Multiformat SDTV Video Decoder ADV7183B Reference Manual
ADV7171 Video Encoder Reference Manual
ADSP-BF533 Hardware Reference Manual
ADSP-BF533 EZ-Kit Lite Evaluation system manual
David J.Katz, Rick Gentile, "Embedded Media Processing", 2d ed. New York:Elsevier Inc., 2006, ISBN:0750679123

SOFTWARE HIERARCHY
==================

This application consists of the following files:

\---BlackfinSDK
    |
    +---Algorithms
    |   |
    |   +---EdgeDetection
    |   |   |
    |   |   +---include
    |   |   |       sobel.h
    |   |   |
    |   |   +---src
    |   |           sobel_fast.asm
    |   |
    +---BFinUtils
    |   |   adi_itu656.c
    |   |   SDK-ezkitutilities.c
    |   |
    +---Include
    |   |   adi_itu656.h
    |   |   SDK-ezkitutilities.h
    |   |
    +---Multimedia
        |
        +---VideoInEdgeDetection
            |   VideoInEdgeDetection.h
            |   VideoInEdgeDetection_Buffers.c
            |   VideoInEdgeDetection_Callbacks.c
            |   VideoInEdgeDetection_System.c
            |   VideoInEdgeDetection_System.h
            |
            +---ADSP-BF533
                    Readme_VideoInEdgeDetection_BF533.txt
                    VideoInEdgeDetection_BF533.dpj
                    VideoInEdgeDetection_BF533.ldf
                    VideoInEdgeDetection_BF533_basiccrt.s
                    VideoInEdgeDetection_BF533_heaptab.c
                    VideoInEdgeDetection_BF533_main.c

Device Drivers:

\---VisualDSP 4.5
    |
    +---Blackfin
        |
        +---lib
            |
            +---src
                |
                +---drivers
                    |   adi_dev.c
                    |
                    +---decoder
                    |       adi_adv7183.c
                    |
                    +---deviceaccess
                    |       adi_device_access.c
                    |       adi_device_access_twi.c
                    |
                    +---encoder
                    |       adi_adv7171.c
                    |       adi_adv717x.c
                    |
                    +---ppi
                    |       adi_ppi.c
                    |
                    +---twi
                            adi_twi.c
                            adi_twi_pseudo.c