SDI Technologies iH30 Spezifikationen PDF herunterladen (Seite 3)

Quadro SDI Output PG-03776-001_v06 | iii

TABLE OF CONTENTS

1 Getting Started ..................................................................... 1

2 Device Control APIs ..................................................................... 2

2.1 Windows .................................................................................. 2

2.2 Linux ...................................................................................... 2

3 OpenGL Extensions ..................................................................... 4

4 Device Setup and Control ..................................................................... 5

4.1 Initialize NVAPI .......................................................................... 5

4.2 Determining Video Capabilites ........................................................ 6

4.3 Opening the Video Device ............................................................. 7

4.4 Configuring the Video Device ......................................................... 8

5 Data Transfer .................................................................... 12

5.1 GPU Selection .......................................................................... 12

5.2 Buffer Object Initialization ........................................................... 13

5.3 Pbuffer Initialization .................................................................. 16

5.4 Starting Video Transfers .............................................................. 23

5.5 Sending FBO Data ...................................................................... 23

5.6 Sending Pbuffer Data .................................................................. 26

5.7 Stopping Video Transfers and Closing the Video Device ......................... 28

6 Ancillary Data .................................................................... 30

6.1 Getting Started ......................................................................... 30

6.2 Basics .................................................................................... 31

6.3 Time Code .............................................................................. 32

6.4 Audio .................................................................................... 33

6.4.1 SMPTE 272M – Standard Definition Audio ......................................... 34

6.4.2 SMPTE 299M – High Definition Audio ............................................... 35

6.4.3 Determining the Number of Audio Samples per Frame ......................... 37

6.4.4 Specifying Audio Data ............................................................... 37

6.5 Custom Data ............................................................................ 40

6.6 Clean Up ................................................................................ 41

7 Video Compositing .................................................................... 42

7.1 Alpha Compositing ..................................................................... 42

7.2 Chroma-Keying ......................................................................... 43

7.3 Luma-Keying ............................................................................ 45

8 Changing the Video Device Configuration ............................................... 46

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SDI Technologies iH30 Spezifikationen Seite 3