Zapping VBI library 0.2.24 review

License: GPL (GNU General Public License) File size: 0K Developer: Michael H Schimek

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Zapping VBI library provides routines to read from raw Vertical Blanking Interval capture devices, to demodulate raw to sliced VBI data, and to interpret the data of several popular services.

Basically, it offers all the functionality needed by a VBI application except for the UI.

Here are some key features of "Zapping VBI library":
Captures raw VBI samples from V4L, V4L2 (Linux 2.6) and FreeBSD BKTR devices, sliced VBI data from Linux DVB devices
Implements a VBI Proxy to share one VBI device between multiple applications
Has a robust and versatile bit slicer which handles a wide range of data services
Functions to capture multiple data services at once, such as Closed Caption (both NTSC and PAL), Teletext, VPS, WSS, XDS
Level 3.5 Teletext decoder with support for all Teletext character sets, graphics, 4096 colors, with built-in page cache including search functions
Closed Caption decoder which supports roll-up, pop-up and paint-on style caption, color, expanded character set, text attributes and free text placement
Renders Teletext and Caption pages, can export to HTML, PNG and other formats
Can determine network names
Can find Teletext subtitle and program pages
Functions to extract data transmissions in Teletext streams (currently Page Format Clear and Independent Data Line Format A)

Requirements:
libpng (optional)

What's New in This Release:
This version fixes a bug in the zvbi-ntsc-cc tool which may cause a segfault on reception errors.