User`s manual

ii Table of Contents
5 Programming Guide ......................................................... 41
5.1 DirectShow Application Programming Introduction........... 41
5.2 Descriptions of Filters ........................................................ 42
Source Filter .................................................................42
Video Renderer Filter .................................................... 44
MPEG4 AVI Mux Filter ..................................................45
MPEG4 File Writer ........................................................ 45
CrossBar Filter .............................................................. 46
5.3 Example Graphs ................................................................ 46
ADLink Bt878 Video Capture filter ................................47
ADLink Bt878 Crossbar filter ........................................ 48
ADLINK Hardware MPEG4 Device ...............................48
Preview .........................................................................50
Capture .........................................................................50
5.4 Controlling Driver ............................................................... 51
Preview .........................................................................51
Capture .........................................................................53
6 Reference Manual ............................................................. 55
6.1 Preview .............................................................................. 55
GPIO Access ................................................................ 55
Bt878 GPIO PIN Definition ........................................... 58
EEPROM Access .......................................................... 59
6.2 Capture .............................................................................. 62
WDM Streaming Capture Filter .....................................62
Media Types ................................................................. 63
Data Structures ............................................................. 64
Enumerations ................................................................95
Filter Interfaces ........................................................... 104
IOSD Interfaces .......................................................... 132
Pin Interfaces .............................................................. 134
6.3 OSD Programming........................................................... 134
Introduction to OSD .................................................... 134
Context .......................................................................135
OSD Font Bitmaps ...................................................... 135
OSD Fonts Display ..................................................... 135
OSD Frame ................................................................. 136
OSD Algorithm ............................................................ 136
Bitmap Stored in SDRAM ........................................... 137
OSD Pixel Color (4-bit OSD Data) .............................. 137