97227ebed3
Adapt the PipelineHandler::acquireMediaDevice() support function to return a shared pointer instead of the underlying raw pointer. Propagate this update to all pipeline handlers that use the MediaDevice and store a std::shared_ptr<MediaDevice> accordingly. This is required to support media devices that are potentially shared among multiple pipeline handlers, like a dewarper implemented as v4l2 m2m device. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
96 lines
2.1 KiB
C++
96 lines
2.1 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2020, Google Inc.
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*
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* A provider of external buffers, suitable for use in tests.
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*/
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#include "buffer_source.h"
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#include <iostream>
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#include <memory>
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#include "libcamera/internal/device_enumerator.h"
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#include "test.h"
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using namespace libcamera;
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BufferSource::BufferSource()
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{
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}
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BufferSource::~BufferSource()
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{
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if (media_)
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media_->release();
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}
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int BufferSource::allocate(const StreamConfiguration &config)
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{
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/* Locate and open the video device. */
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std::string videoDeviceName = "vivid-000-vid-out";
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std::unique_ptr<DeviceEnumerator> enumerator =
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DeviceEnumerator::create();
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if (!enumerator) {
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std::cout << "Failed to create device enumerator" << std::endl;
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return TestFail;
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}
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if (enumerator->enumerate()) {
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std::cout << "Failed to enumerate media devices" << std::endl;
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return TestFail;
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}
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DeviceMatch dm("vivid");
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dm.add(videoDeviceName);
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media_ = enumerator->search(dm);
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if (!media_) {
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std::cout << "No vivid output device available" << std::endl;
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return TestSkip;
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}
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std::unique_ptr<V4L2VideoDevice> video = V4L2VideoDevice::fromEntityName(media_.get(),
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videoDeviceName);
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if (!video) {
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std::cout << "Failed to get video device from entity "
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<< videoDeviceName << std::endl;
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return TestFail;
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}
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if (video->open()) {
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std::cout << "Unable to open " << videoDeviceName << std::endl;
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return TestFail;
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}
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/* Configure the format. */
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V4L2DeviceFormat format;
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if (video->getFormat(&format)) {
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std::cout << "Failed to get format on output device" << std::endl;
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return TestFail;
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}
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format.size = config.size;
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format.fourcc = video->toV4L2PixelFormat(config.pixelFormat);
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if (video->setFormat(&format)) {
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std::cout << "Failed to set format on output device" << std::endl;
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return TestFail;
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}
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if (video->allocateBuffers(config.bufferCount, &buffers_) < 0) {
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std::cout << "Failed to allocate buffers" << std::endl;
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return TestFail;
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}
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video->close();
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return TestPass;
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}
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const std::vector<std::unique_ptr<FrameBuffer>> &BufferSource::buffers()
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{
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return buffers_;
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}
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