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media: vivid: loopback based on 'Connected To' controls

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Instead of using hardwired video loopback limited to a single vivid
instance, use the new 'Connected To' controls to only loopback if an
HDMI or S-Video input is connected to another output, which can be
in another vivid instance. Effectively this emulates connecting and
disconnecting an HDMI/S-Video cable.

The Loop Video control is dropped since it has now been replaced by
the new 'Connected To' controls. The Display Present has also been
dropped since it no longer fits.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Co-developed-by: Dorcas Anono Litunya <anonolitunya@gmail.com>
Signed-off-by: Dorcas Anono Litunya <anonolitunya@gmail.com>
This commit is contained in:
Hans Verkuil
2024-06-24 12:53:04 +03:00
parent d7c969f375
commit 4c4dacb052
12 changed files with 364 additions and 284 deletions
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5
Documentation/admin-guide/media/vivid.rst
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@@ -1020,11 +1020,6 @@ Digital Video Controls
affects the reported colorspace since DVI_D outputs will always use
sRGB.
- Display Present:
sets the presence of a "display" on the HDMI output. This affects
the tx_edid_present, tx_hotplug and tx_rxsense controls.
FM Radio Receiver Controls
~~~~~~~~~~~~~~~~~~~~~~~~~~