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| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2024-06-24 11:52:54 +0200 |
|---|---|---|
| committer | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2024-06-28 08:00:28 +0200 |
| commit | 50e2eba54d0d865cbb7a4e03fd721d5b396083d1 (patch) | |
| tree | 50055c898a409e5b63ed3546dbab5dafc282af20 | |
| parent | media: Documentation: vivid.rst: fix confusing section refs (diff) | |
| download | linux-50e2eba54d0d865cbb7a4e03fd721d5b396083d1.tar.xz linux-50e2eba54d0d865cbb7a4e03fd721d5b396083d1.zip | |
media: Documentation: vivid.rst: drop "Video, VBI and RDS Looping"
Drop the "Video, VBI and RDS Looping" section, instead moving the
Video/VBI info to section "Video and Sliced VBI looping" and the
RDS info to section "Radio & RDS Looping".
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
| -rw-r--r-- | Documentation/admin-guide/media/vivid.rst | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/Documentation/admin-guide/media/vivid.rst b/Documentation/admin-guide/media/vivid.rst index 04de7b69c817..d7d5a01f4e59 100644 --- a/Documentation/admin-guide/media/vivid.rst +++ b/Documentation/admin-guide/media/vivid.rst @@ -1130,26 +1130,19 @@ Metadata Capture Controls if set, then the generated metadata stream contains Source Clock information. -Video, VBI and RDS Looping --------------------------- -The vivid driver supports looping of video output to video input, VBI output -to VBI input and RDS output to RDS input. For video/VBI looping this emulates -as if a cable was hooked up between the output and input connector. So video -and VBI looping is only supported between S-Video and HDMI inputs and outputs. -VBI is only valid for S-Video as it makes no sense for HDMI. +Video and Sliced VBI Looping +---------------------------- -Since radio is wireless this looping always happens if the radio receiver -frequency is close to the radio transmitter frequency. In that case the radio -transmitter will 'override' the emulated radio stations. +The vivid driver supports looping of video output to video input, and VBI +output to VBI input. For video/VBI looping this emulates as if a cable was +hooked up between the output and input connector. So video and VBI looping +is only supported between S-Video and HDMI inputs and outputs. +VBI is only valid for S-Video as it makes no sense for HDMI. Looping is currently supported only between devices created by the same vivid driver instance. - -Video and Sliced VBI looping -~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - The way to enable video/VBI looping is currently fairly crude. A 'Loop Video' control is available in the "Vivid" control class of the video capture and VBI capture devices. When checked the video looping will be enabled. @@ -1198,7 +1191,16 @@ and WSS (50 Hz formats) VBI data is looped. Teletext VBI data is not looped. Radio & RDS Looping -~~~~~~~~~~~~~~~~~~~ +------------------- + +The vivid driver supports looping of RDS output to RDS input. + +Since radio is wireless this looping always happens if the radio receiver +frequency is close to the radio transmitter frequency. In that case the radio +transmitter will 'override' the emulated radio stations. + +RDS looping is currently supported only between devices created by the same +vivid driver instance. As mentioned in the "Radio Receiver" section, the radio receiver emulates stations at regular frequency intervals. Depending on the frequency of the |