SAMPLE: AVI Playback (Streaming) onto DirectDraw Surface

 Last reviewed: September 5, 1997
Article ID: Q154789
4.00 WINDOWS kbmm kbfile

The information in this article applies to:

  • Microsoft Video For Windows Development Kit

SUMMARY

The AVIDD95 sample demonstrates streaming of video data from an Audio- Video Interleaved (.AVI) file onto a full screen DirectDraw surface (Mode X). It plays the video as fast as possible. The maximum video size supported by the sample is 320x240 and the bit depth is dithered down to 8-bit regardless of the current video mode. This sample includes all source code and supporting files (.mak, .mdp, etc.) as the sample was developed using Microsoft's Visual C++ 4.x Developer Studio. In order to build the sample, the development environment must include the DirectX 2 SDK.

MORE INFORMATION

AVIDD95 uses the following steps to stream the video onto the DirectDraw surface:

  1. Opens the video stream from an .AVI file via AVIStreamOpenFromFile.

  2. Reads the source video stream format via AVIStreamReadFormat.

  3. Reads a frame from the video stream via AVIStreamRead.

  4. Converts the frame from the source format to the target format.

  5. Draws the decompressed frame via standard DirectDraw calls.

  6. Repeats steps 3-5 for every frame (found by AVIStreamLength).

In AVIDD95, Mode X is utilized exclusively, requiring the video stream to be decompressed and dithered down from the native format, such as 16-bit or 24-bit, to 8-bit RGB. Decompression and dithering is accomplished by calling ICDecompress before passing the frame on to the drawing routine. 

You can find AVIDD95.EXE (size: 23579 bytes) 
                        , a self-extracting file, on these services:
  • Microsoft's World Wide Web site on the Internet 

          On the www.microsoft.com home page, click the Support icon
      Click Knowledge Base, and select the product

          Enter kbfile AVIDD95.EXE (size: 23579 bytes) 
                              , and click GO!
      Open the article, and click the button to download the file


  • Internet (anonymous FTP)

          ftp ftp.microsoft.com
      Change to the Softlib/Mslfiles folder
      Get AVIDD95.EXE (size: 23579 bytes) 

    
- Microsoft Download Service (MSDL)

          Dial (206) 936-6735 to connect to MSDL
      Download AVIDD95.EXE (size: 23579 bytes) 


    For additional information about downloading, please see the following
article in the Microsoft Knowledge Base:

    

       ARTICLE-ID: Q119591
   TITLE     : How to Obtain Microsoft Support Files from Online Services

    

	    
	
    		• 
	
    

    

    






    

    

	
    


    


KBCategory: kbmm kbfile
    
KBSubcategory: mmvideo
    
Additional reference words: 4.00 DD kbdsd Win95 multimedia
    
Keywords          : MMVideo kbfile kbmm
    
Technology        : kbDirectXSDK
    
Version           : 4.00
    
Platform          : WINDOWS
    

    
    

    

    
THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.  MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO
EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.  SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
SO THE FOREGOING LIMITATION MAY NOT APPLY.

    

    

    
	
	Last reviewed:  September 5, 1997
	
    
	© 1998 Microsoft Corporation. All rights reserved. Terms of Use.