PawletOS/external_libcamera
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

libcamera: camera_sensor: Add support for embedded data

Browse Source 
Some sensors support producing and transmitting embedded data over a
stream separate from the image stream. Add support for this feature in
the CameraSensor interface, and implement it for the CameraSensorRaw
class. The CameraSensorLegacy uses the default stub implementation, as
the corresponding kernel drivers don't support embedded data.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Laurent Pinchart
2024-02-29 02:21:15 +02:00
committed by Jacopo Mondi
parent a09c7f212c
commit 3feb4df755
3 changed files with 144 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

72
src/libcamera/sensor/camera_sensor_raw.cpp
View File

@@ -85,6 +85,11 @@ public:
Transform transform = Transform::Identity,
V4L2SubdeviceFormat *sensorFormat = nullptr) override;
V4L2Subdevice::Stream imageStream() const override;
std::optional<V4L2Subdevice::Stream> embeddedDataStream() const override;
V4L2SubdeviceFormat embeddedDataFormat() const override;
int setEmbeddedDataEnabled(bool enable) override;
const ControlList &properties() const override { return properties_; }
int sensorInfo(IPACameraSensorInfo *info) const override;
Transform computeTransform(Orientation *orientation) const override;
@@ -908,6 +913,73 @@ int CameraSensorRaw::applyConfiguration(const SensorConfiguration &config,
return 0;
}
V4L2Subdevice::Stream CameraSensorRaw::imageStream() const
{
return streams_.image.source;
}
std::optional<V4L2Subdevice::Stream> CameraSensorRaw::embeddedDataStream() const
{
if (!streams_.edata)
return {};
return { streams_.edata->source };
}
V4L2SubdeviceFormat CameraSensorRaw::embeddedDataFormat() const
{
if (!streams_.edata)
return {};
V4L2SubdeviceFormat format;
int ret = subdev_->getFormat(streams_.edata->source, &format);
if (ret)
return {};
return format;
}
int CameraSensorRaw::setEmbeddedDataEnabled(bool enable)
{
if (!streams_.edata)
return enable ? -ENOSTR : 0;
V4L2Subdevice::Routing routing{ 2 };
routing[0].sink = streams_.image.sink;
routing[0].source = streams_.image.source;
routing[0].flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE;
routing[1].sink = streams_.edata->sink;
routing[1].source = streams_.edata->source;
routing[1].flags = enable ? V4L2_SUBDEV_ROUTE_FL_ACTIVE : 0;
int ret = subdev_->setRouting(&routing);
if (ret)
return ret;
/*
* Check if the embedded data stream has been enabled or disabled
* correctly. Assume at least one route will match the embedded data
* source stream, as there would be something seriously wrong
* otherwise.
*/
bool enabled = false;
for (const V4L2Subdevice::Route &route : routing) {
if (route.source != streams_.edata->source)
continue;
enabled = route.flags & V4L2_SUBDEV_ROUTE_FL_ACTIVE;
break;
}
if (enabled != enable)
return enabled ? -EISCONN : -ENOSTR;
return 0;
}
int CameraSensorRaw::sensorInfo(IPACameraSensorInfo *info) const
{
info->model = model();