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pipeline: raspberrypi: Only enable embedded stream when available

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The pipeline handler would enable and use the Unicam embedded data stream
even if the sensor did not support it. This was to allow a means to
pass exposure and gain values for the frame to the IPA in a synchronised
way.

The recent changes to get the pipeline handler to pass a ControlList
with exposure and gain values means this is no longer required. Disable
the use of the embedded data stream when a sensor does not support it.

This change also removes the mappedEmbeddedBuffers_ map as it is no
longer used.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Naushir Patuck
2021-03-02 15:11:10 +00:00
committed by Laurent Pinchart
parent 9d4431d621
commit a52eebed20
1 changed files with 72 additions and 42 deletions
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114
src/libcamera/pipeline/raspberrypi/raspberrypi.cpp
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@@ -177,12 +177,6 @@ public:
/* Stores the ids of the buffers mapped in the IPA. */
std::unordered_set<unsigned int> ipaBuffers_;
/*
* Map of (internal) mmaped embedded data buffers, to avoid having to
* map/unmap on every frame.
*/
std::map<unsigned int, MappedFrameBuffer> mappedEmbeddedBuffers_;
/* DMAHEAP allocation helper. */
RPi::DmaHeap dmaHeap_;
FileDescriptor lsTable_;
@@ -636,14 +630,7 @@ int PipelineHandlerRPi::configure(Camera *camera, CameraConfiguration *config)
if (isRaw(cfg.pixelFormat)) {
cfg.setStream(&data->unicam_[Unicam::Image]);
/*
* We must set both Unicam streams as external, even
* though the application may only request RAW frames.
* This is because we match timestamps on both streams
* to synchronise buffers.
*/
data->unicam_[Unicam::Image].setExternal(true);
data->unicam_[Unicam::Embedded].setExternal(true);
continue;
}
@@ -715,17 +702,6 @@ int PipelineHandlerRPi::configure(Camera *camera, CameraConfiguration *config)
return ret;
}
/* Unicam embedded data output format. */
format = {};
format.fourcc = V4L2PixelFormat(V4L2_META_FMT_SENSOR_DATA);
LOG(RPI, Debug) << "Setting embedded data format.";
ret = data->unicam_[Unicam::Embedded].dev()->setFormat(&format);
if (ret) {
LOG(RPI, Error) << "Failed to set format on Unicam embedded: "
<< format.toString();
return ret;
}
/* Figure out the smallest selection the ISP will allow. */
Rectangle testCrop(0, 0, 1, 1);
data->isp_[Isp::Input].dev()->setSelection(V4L2_SEL_TGT_CROP, &testCrop);
@@ -742,6 +718,41 @@ int PipelineHandlerRPi::configure(Camera *camera, CameraConfiguration *config)
if (ret)
LOG(RPI, Error) << "Failed to configure the IPA: " << ret;
/*
* The IPA will set data->sensorMetadata_ to true if embedded data is
* supported on this sensor. If so, open the Unicam embedded data
* node and configure the output format.
*/
if (data->sensorMetadata_) {
format = {};
format.fourcc = V4L2PixelFormat(V4L2_META_FMT_SENSOR_DATA);
LOG(RPI, Debug) << "Setting embedded data format.";
data->unicam_[Unicam::Embedded].dev()->open();
ret = data->unicam_[Unicam::Embedded].dev()->setFormat(&format);
if (ret) {
LOG(RPI, Error) << "Failed to set format on Unicam embedded: "
<< format.toString();
return ret;
}
/*
* If a RAW/Bayer stream has been requested by the application,
* we must set both Unicam streams as external, even though the
* application may only request RAW frames. This is because we
* match timestamps on both streams to synchronise buffers.
*/
if (rawStream)
data->unicam_[Unicam::Embedded].setExternal(true);
} else {
/*
* No embedded data present, so we do not want to iterate over
* the embedded data stream when starting and stopping.
*/
data->streams_.erase(std::remove(data->streams_.begin(), data->streams_.end(),
&data->unicam_[Unicam::Embedded]),
data->streams_.end());
}
/*
* Update the ScalerCropMaximum to the correct value for this camera mode.
* For us, it's the same as the "analogue crop".
@@ -949,10 +960,16 @@ bool PipelineHandlerRPi::match(DeviceEnumerator *enumerator)
for (auto &stream : data->isp_)
data->streams_.push_back(&stream);
/* Open all Unicam and ISP streams. */
/*
* Open all Unicam and ISP streams. The exception is the embedded data
* stream, which only gets opened if the IPA reports that the sensor
* supports embedded data. This happens in RPiCameraData::configureIPA().
*/
for (auto const stream : data->streams_) {
if (stream->dev()->open())
return false;
if (stream != &data->unicam_[Unicam::Embedded]) {
if (stream->dev()->open())
return false;
}
}
/* Wire up all the buffer connections. */
@@ -1109,19 +1126,14 @@ int PipelineHandlerRPi::prepareBuffers(Camera *camera)
return ret;
}
if (!data->sensorMetadata_) {
for (auto const &it : data->unicam_[Unicam::Embedded].getBuffers()) {
MappedFrameBuffer fb(it.second, PROT_READ | PROT_WRITE);
data->mappedEmbeddedBuffers_.emplace(it.first, std::move(fb));
}
}
/*
* Pass the stats and embedded data buffers to the IPA. No other
* buffers need to be passed.
*/
mapBuffers(camera, data->isp_[Isp::Stats].getBuffers(), ipa::RPi::MaskStats);
mapBuffers(camera, data->unicam_[Unicam::Embedded].getBuffers(), ipa::RPi::MaskEmbeddedData);
if (data->sensorMetadata_)
mapBuffers(camera, data->unicam_[Unicam::Embedded].getBuffers(),
ipa::RPi::MaskEmbeddedData);
return 0;
}
@@ -1154,7 +1166,6 @@ void PipelineHandlerRPi::freeBuffers(Camera *camera)
std::vector<unsigned int> ipaBuffers(data->ipaBuffers_.begin(), data->ipaBuffers_.end());
data->ipa_->unmapBuffers(ipaBuffers);
data->ipaBuffers_.clear();
data->mappedEmbeddedBuffers_.clear();
for (auto const stream : data->streams_)
stream->releaseBuffers();
@@ -1653,7 +1664,7 @@ void RPiCameraData::tryRunPipeline()
/* If any of our request or buffer queues are empty, we cannot proceed. */
if (state_ != State::Idle || requestQueue_.empty() ||
bayerQueue_.empty() || embeddedQueue_.empty())
bayerQueue_.empty() || (embeddedQueue_.empty() && sensorMetadata_))
return;
if (!findMatchingBuffers(bayerFrame, embeddedBuffer))
@@ -1676,17 +1687,24 @@ void RPiCameraData::tryRunPipeline()
state_ = State::Busy;
unsigned int bayerId = unicam_[Unicam::Image].getBufferId(bayerFrame.buffer);
unsigned int embeddedId = unicam_[Unicam::Embedded].getBufferId(embeddedBuffer);
LOG(RPI, Debug) << "Signalling signalIspPrepare:"
<< " Bayer buffer id: " << bayerId
<< " Embedded buffer id: " << embeddedId;
<< " Bayer buffer id: " << bayerId;
ipa::RPi::ISPConfig ispPrepare;
ispPrepare.embeddedBufferId = ipa::RPi::MaskEmbeddedData | embeddedId;
ispPrepare.bayerBufferId = ipa::RPi::MaskBayerData | bayerId;
ispPrepare.embeddedBufferPresent = sensorMetadata_;
ispPrepare.controls = std::move(bayerFrame.controls);
if (embeddedBuffer) {
unsigned int embeddedId = unicam_[Unicam::Embedded].getBufferId(embeddedBuffer);
ispPrepare.embeddedBufferId = ipa::RPi::MaskEmbeddedData | embeddedId;
ispPrepare.embeddedBufferPresent = true;
LOG(RPI, Debug) << "Signalling signalIspPrepare:"
<< " Bayer buffer id: " << embeddedId;
}
ipa_->signalIspPrepare(ispPrepare);
}
@@ -1728,6 +1746,18 @@ bool RPiCameraData::findMatchingBuffers(BayerFrame &bayerFrame, FrameBuffer *&em
LOG(RPI, Debug) << "Could not find matching embedded buffer";
if (!sensorMetadata_) {
/*
* If there is no sensor metadata, simply return the
* first bayer frame in the queue.
*/
LOG(RPI, Debug) << "Returning bayer frame without a match";
bayerFrame = std::move(bayerQueue_.front());
bayerQueue_.pop();
embeddedBuffer = nullptr;
return true;
}
if (!embeddedQueue_.empty()) {
/*
* Not found a matching embedded buffer for the bayer buffer in