/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2020, Google Inc. * * delayed_controls.cpp - libcamera delayed controls test */ #include <iostream> #include "libcamera/internal/delayed_controls.h" #include "libcamera/internal/device_enumerator.h" #include "libcamera/internal/media_device.h" #include "libcamera/internal/v4l2_videodevice.h" #include "test.h" using namespace std; using namespace libcamera; class DelayedControlsTest : public Test { public: DelayedControlsTest() { } protected: int init() override { enumerator_ = DeviceEnumerator::create(); if (!enumerator_) { cerr << "Failed to create device enumerator" << endl; return TestFail; } if (enumerator_->enumerate()) { cerr << "Failed to enumerate media devices" << endl; return TestFail; } DeviceMatch dm("vivid"); dm.add("vivid-000-vid-cap"); media_ = enumerator_->search(dm); if (!media_) { cerr << "vivid video device found" << endl; return TestSkip; } dev_ = V4L2VideoDevice::fromEntityName(media_.get(), "vivid-000-vid-cap"); if (dev_->open()) { cerr << "Failed to open video device" << endl; return TestFail; } const ControlInfoMap &infoMap = dev_->controls(); /* Make sure the controls we require are present. */ if (infoMap.empty()) { cerr << "Failed to enumerate controls" << endl; return TestFail; } if (infoMap.find(V4L2_CID_BRIGHTNESS) == infoMap.end() || infoMap.find(V4L2_CID_CONTRAST) == infoMap.end()) { cerr << "Missing controls" << endl; return TestFail; } return TestPass; } int singleControlNoDelay() { std::unordered_map<uint32_t, DelayedControls::ControlParams> delays = { { V4L2_CID_BRIGHTNESS, { 0, false } }, }; std::unique_ptr<DelayedControls> delayed = std::make_unique<DelayedControls>(dev_.get(), delays); ControlList ctrls; /* Reset control to value not used in test. */ ctrls.set(V4L2_CID_BRIGHTNESS, 1); dev_->setControls(&ctrls); delayed->reset(); /* Trigger the first frame start event */ delayed->applyControls(0); /* Test control without delay are set at once. */ for (unsigned int i = 1; i < 100; i++) { int32_t value = 100 + i; ctrls.set(V4L2_CID_BRIGHTNESS, value); delayed->push(ctrls); delayed->applyControls(i); ControlList result = delayed->get(i); int32_t brightness = result.get(V4L2_CID_BRIGHTNESS).get<int32_t>(); if (brightness != value) { cerr << "Failed single control without delay" << " frame " << i << " expected " << value << " got " << brightness << endl; return TestFail; } } return TestPass; } int singleControlWithDelay() { std::unordered_map<uint32_t, DelayedControls::ControlParams> delays = { { V4L2_CID_BRIGHTNESS, { 1, false } }, }; std::unique_ptr<DelayedControls> delayed = std::make_unique<DelayedControls>(dev_.get(), delays); ControlList ctrls; /* Reset control to value that will be first in test. */ int32_t expected = 4; ctrls.set(V4L2_CID_BRIGHTNESS, expected); dev_->setControls(&ctrls); delayed->reset(); /* Trigger the first frame start event */ delayed->applyControls(0); /* Test single control with delay. */ for (unsigned int i = 1; i < 100; i++) { int32_t value = 10 + i; ctrls.set(V4L2_CID_BRIGHTNESS, value); delayed->push(ctrls); delayed->applyControls(i); ControlList result = delayed->get(i); int32_t brightness = result.get(V4L2_CID_BRIGHTNESS).get<int32_t>(); if (brightness != expected) { cerr << "Failed single control with delay" << " frame " << i << " expected " << expected << " got " << brightness << endl; return TestFail; } expected = value; } return TestPass; } int dualControlsWithDelay() { static const unsigned int maxDelay = 2; std::unordered_map<uint32_t, DelayedControls::ControlParams> delays = { { V4L2_CID_BRIGHTNESS, { 1, false } }, { V4L2_CID_CONTRAST, { maxDelay, false } }, }; std::unique_ptr<DelayedControls> delayed = std::make_unique<DelayedControls>(dev_.get(), delays); ControlList ctrls; /* Reset control to value that will be first two frames in test. */ int32_t expected = 200; ctrls.set(V4L2_CID_BRIGHTNESS, expected); ctrls.set(V4L2_CID_CONTRAST, expected + 1); dev_->setControls(&ctrls); delayed->reset(); /* Trigger the first frame start event */ delayed->applyControls(0); /* Test dual control with delay. */ for (unsigned int i = 1; i < 100; i++) { int32_t value = 10 + i; ctrls.set(V4L2_CID_BRIGHTNESS, value); ctrls.set(V4L2_CID_CONTRAST, value + 1); delayed->push(ctrls); delayed->applyControls(i); ControlList result = delayed->get(i); int32_t brightness = result.get(V4L2_CID_BRIGHTNESS).get<int32_t>(); int32_t contrast = result.get(V4L2_CID_CONTRAST).get<int32_t>(); if (brightness != expected || contrast != expected + 1) { cerr << "Failed dual controls" << " frame " << i << " brightness " << brightness << " contrast " << contrast << " expected " << expected << endl; return TestFail; } expected = i < maxDelay ? expected : value - 1; } return TestPass; } int dualControlsMultiQueue() { static const unsigned int maxDelay = 2; std::unordered_map<uint32_t, DelayedControls::ControlParams> delays = { { V4L2_CID_BRIGHTNESS, { 1, false } }, { V4L2_CID_CONTRAST, { maxDelay, false } } }; std::unique_ptr<DelayedControls> delayed = std::make_unique<DelayedControls>(dev_.get(), delays); ControlList ctrls; /* Reset control to value that will be first two frames in test. */ int32_t expected = 100; ctrls.set(V4L2_CID_BRIGHTNESS, expected); ctrls.set(V4L2_CID_CONTRAST, expected); dev_->setControls(&ctrls); delayed->reset(); /* Trigger the first frame start event */ delayed->applyControls(0); /* * Queue all controls before any fake frame start. Note we * can't queue up more then the delayed controls history size * which is 16. Where one spot is used by the reset control. */ for (unsigned int i = 0; i < 15; i++) { int32_t value = 10 + i; ctrls.set(V4L2_CID_BRIGHTNESS, value); ctrls.set(V4L2_CID_CONTRAST, value); delayed->push(ctrls); } /* Process all queued controls. */ for (unsigned int i = 1; i < 16; i++) { int32_t value = 10 + i - 1; delayed->applyControls(i); ControlList result = delayed->get(i); int32_t brightness = result.get(V4L2_CID_BRIGHTNESS).get<int32_t>(); int32_t contrast = result.get(V4L2_CID_CONTRAST).get<int32_t>(); if (brightness != expected || contrast != expected) { cerr << "Failed multi queue" << " frame " << i << " brightness " << brightness << " contrast " << contrast << " expected " << expected << endl; return TestFail; } expected = i < maxDelay ? expected : value - 1; } return TestPass; } int run() override { int ret; /* Test single control without delay. */ ret = singleControlNoDelay(); if (ret) return ret; /* Test single control with delay. */ ret = singleControlWithDelay(); if (ret) return ret; /* Test dual controls with different delays. */ ret = dualControlsWithDelay(); if (ret) return ret; /* Test control values produced faster than consumed. */ ret = dualControlsMultiQueue(); if (ret) return ret; return TestPass; } private: std::unique_ptr<DeviceEnumerator> enumerator_; std::shared_ptr<MediaDevice> media_; std::unique_ptr<V4L2VideoDevice> dev_; }; TEST_REGISTER(DelayedControlsTest)