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Diffstat (limited to 'multimedia/zvbi/README')
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diff --git a/multimedia/zvbi/README b/multimedia/zvbi/README new file mode 100644 index 0000000000..18f1efda76 --- /dev/null +++ b/multimedia/zvbi/README @@ -0,0 +1,12 @@ +The Zapping VBI library, in short ZVBI, provides functions to capture and +decode VBI data. It is written in plain ANSI C with few dependencies on other +tools and libraries, licensed under GPL. + +The vertical blanking interval (VBI) is an interval in a television signal +that temporarily suspends transmission of the signal for the electron gun to +move back up to the first line of the television screen to trace the next +screen field. + +The vertical blanking interval can be used to carry data, since anything sent +during the VBI would naturally not be displayed; various test signals, closed +captioning, and other digital data can be sent during this time period. |