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fix(video): only list video devices with video capture capability

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This change adds a check for the V4L2_CAP_VIDEO_CAPTURE capability of
the video device found on devfs. This will filter out 'metadata' device
nodes that may be present on devfs at some  /dev/videoN path.

Fixes #6276
This commit is contained in:
Jamie Westell 2021-02-27 16:19:30 -08:00
parent cfe6250d9d
commit 98a818cbea
1 changed files with 2 additions and 1 deletions
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3
src/platform/camera/v4l2.cpp
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@ -206,7 +206,8 @@ QVector<QPair<QString, QString>> v4l2::getDeviceList()
ioctl(fd, VIDIOC_QUERYCAP, &caps);
close(fd);
devices += {file, reinterpret_cast<const char*>(caps.card)};
if (caps.device_caps & V4L2_CAP_VIDEO_CAPTURE)
devices += {file, reinterpret_cast<const char*>(caps.card)};
}
return devices;
}