Move test applications to src/apps/
The cam and qcam test application share code, currently through a crude hack that references the cam source files directly from the qcam meson.build file. To prepare for the introduction of hosting that code in a static library, move all applications to src/apps/. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Laurent Pinchart
parent
daf3f4b59f
commit
84ad104499
350 changed files with 7 additions and 4 deletions
535
src/apps/cam/capture_script.cpp
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535
src/apps/cam/capture_script.cpp
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2022, Ideas on Board Oy
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*
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* capture_script.cpp - Capture session configuration script
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*/
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#include "capture_script.h"
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#include <iostream>
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#include <stdio.h>
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#include <stdlib.h>
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using namespace libcamera;
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CaptureScript::CaptureScript(std::shared_ptr<Camera> camera,
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const std::string &fileName)
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: camera_(camera), loop_(0), valid_(false)
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{
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FILE *fh = fopen(fileName.c_str(), "r");
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if (!fh) {
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int ret = -errno;
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std::cerr << "Failed to open capture script " << fileName
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<< ": " << strerror(-ret) << std::endl;
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return;
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}
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/*
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* Map the camera's controls to their name so that they can be
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* easily identified when parsing the script file.
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*/
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for (const auto &[control, info] : camera_->controls())
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controls_[control->name()] = control;
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int ret = parseScript(fh);
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fclose(fh);
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if (ret)
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return;
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valid_ = true;
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}
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/* Retrieve the control list associated with a frame number. */
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const ControlList &CaptureScript::frameControls(unsigned int frame)
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{
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static ControlList controls{};
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unsigned int idx = frame;
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/* If we loop, repeat the controls every 'loop_' frames. */
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if (loop_)
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idx = frame % loop_;
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auto it = frameControls_.find(idx);
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if (it == frameControls_.end())
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return controls;
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return it->second;
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}
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CaptureScript::EventPtr CaptureScript::nextEvent(yaml_event_type_t expectedType)
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{
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EventPtr event(new yaml_event_t);
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if (!yaml_parser_parse(&parser_, event.get()))
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return nullptr;
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if (expectedType != YAML_NO_EVENT && !checkEvent(event, expectedType))
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return nullptr;
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return event;
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}
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bool CaptureScript::checkEvent(const EventPtr &event, yaml_event_type_t expectedType) const
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{
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if (event->type != expectedType) {
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std::cerr << "Capture script error on line " << event->start_mark.line
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<< " column " << event->start_mark.column << ": "
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<< "Expected " << eventTypeName(expectedType)
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<< " event, got " << eventTypeName(event->type)
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<< std::endl;
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return false;
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}
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return true;
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}
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std::string CaptureScript::eventScalarValue(const EventPtr &event)
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{
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return std::string(reinterpret_cast<char *>(event->data.scalar.value),
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event->data.scalar.length);
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}
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std::string CaptureScript::eventTypeName(yaml_event_type_t type)
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{
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static const std::map<yaml_event_type_t, std::string> typeNames = {
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{ YAML_STREAM_START_EVENT, "stream-start" },
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{ YAML_STREAM_END_EVENT, "stream-end" },
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{ YAML_DOCUMENT_START_EVENT, "document-start" },
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{ YAML_DOCUMENT_END_EVENT, "document-end" },
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{ YAML_ALIAS_EVENT, "alias" },
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{ YAML_SCALAR_EVENT, "scalar" },
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{ YAML_SEQUENCE_START_EVENT, "sequence-start" },
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{ YAML_SEQUENCE_END_EVENT, "sequence-end" },
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{ YAML_MAPPING_START_EVENT, "mapping-start" },
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{ YAML_MAPPING_END_EVENT, "mapping-end" },
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};
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auto it = typeNames.find(type);
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if (it == typeNames.end())
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return "[type " + std::to_string(type) + "]";
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return it->second;
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}
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int CaptureScript::parseScript(FILE *script)
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{
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int ret = yaml_parser_initialize(&parser_);
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if (!ret) {
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std::cerr << "Failed to initialize yaml parser" << std::endl;
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return ret;
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}
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/* Delete the parser upon function exit. */
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struct ParserDeleter {
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ParserDeleter(yaml_parser_t *parser) : parser_(parser) { }
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~ParserDeleter() { yaml_parser_delete(parser_); }
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yaml_parser_t *parser_;
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} deleter(&parser_);
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yaml_parser_set_input_file(&parser_, script);
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EventPtr event = nextEvent(YAML_STREAM_START_EVENT);
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if (!event)
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return -EINVAL;
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event = nextEvent(YAML_DOCUMENT_START_EVENT);
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if (!event)
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return -EINVAL;
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event = nextEvent(YAML_MAPPING_START_EVENT);
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if (!event)
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return -EINVAL;
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while (1) {
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event = nextEvent();
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if (!event)
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return -EINVAL;
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if (event->type == YAML_MAPPING_END_EVENT)
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return 0;
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if (!checkEvent(event, YAML_SCALAR_EVENT))
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return -EINVAL;
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std::string section = eventScalarValue(event);
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if (section == "properties") {
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ret = parseProperties();
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if (ret)
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return ret;
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} else if (section == "frames") {
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ret = parseFrames();
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if (ret)
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return ret;
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} else {
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std::cerr << "Unsupported section '" << section << "'"
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<< std::endl;
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return -EINVAL;
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}
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}
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}
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int CaptureScript::parseProperty()
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{
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EventPtr event = nextEvent(YAML_MAPPING_START_EVENT);
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if (!event)
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return -EINVAL;
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std::string prop = parseScalar();
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if (prop.empty())
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return -EINVAL;
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if (prop == "loop") {
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event = nextEvent();
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if (!event)
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return -EINVAL;
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std::string value = eventScalarValue(event);
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if (value.empty())
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return -EINVAL;
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loop_ = atoi(value.c_str());
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if (!loop_) {
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std::cerr << "Invalid loop limit '" << loop_ << "'"
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<< std::endl;
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return -EINVAL;
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}
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} else {
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std::cerr << "Unsupported property '" << prop << "'" << std::endl;
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return -EINVAL;
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}
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event = nextEvent(YAML_MAPPING_END_EVENT);
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if (!event)
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return -EINVAL;
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return 0;
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}
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int CaptureScript::parseProperties()
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{
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EventPtr event = nextEvent(YAML_SEQUENCE_START_EVENT);
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if (!event)
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return -EINVAL;
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while (1) {
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if (event->type == YAML_SEQUENCE_END_EVENT)
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return 0;
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int ret = parseProperty();
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if (ret)
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return ret;
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event = nextEvent();
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if (!event)
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return -EINVAL;
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}
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return 0;
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}
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int CaptureScript::parseFrames()
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{
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EventPtr event = nextEvent(YAML_SEQUENCE_START_EVENT);
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if (!event)
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return -EINVAL;
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while (1) {
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event = nextEvent();
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if (!event)
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return -EINVAL;
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if (event->type == YAML_SEQUENCE_END_EVENT)
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return 0;
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int ret = parseFrame(std::move(event));
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if (ret)
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return ret;
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}
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}
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int CaptureScript::parseFrame(EventPtr event)
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{
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if (!checkEvent(event, YAML_MAPPING_START_EVENT))
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return -EINVAL;
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std::string key = parseScalar();
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if (key.empty())
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return -EINVAL;
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unsigned int frameId = atoi(key.c_str());
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if (loop_ && frameId >= loop_) {
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std::cerr
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<< "Frame id (" << frameId << ") shall be smaller than"
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<< "loop limit (" << loop_ << ")" << std::endl;
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return -EINVAL;
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}
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event = nextEvent(YAML_MAPPING_START_EVENT);
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if (!event)
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return -EINVAL;
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ControlList controls{};
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while (1) {
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event = nextEvent();
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if (!event)
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return -EINVAL;
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if (event->type == YAML_MAPPING_END_EVENT)
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break;
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int ret = parseControl(std::move(event), controls);
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if (ret)
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return ret;
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}
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frameControls_[frameId] = std::move(controls);
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event = nextEvent(YAML_MAPPING_END_EVENT);
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if (!event)
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return -EINVAL;
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return 0;
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}
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int CaptureScript::parseControl(EventPtr event, ControlList &controls)
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{
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/* We expect a value after a key. */
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std::string name = eventScalarValue(event);
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if (name.empty())
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return -EINVAL;
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/* If the camera does not support the control just ignore it. */
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auto it = controls_.find(name);
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if (it == controls_.end()) {
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std::cerr << "Unsupported control '" << name << "'" << std::endl;
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return -EINVAL;
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}
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const ControlId *controlId = it->second;
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ControlValue val = unpackControl(controlId);
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if (val.isNone()) {
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std::cerr << "Error unpacking control '" << name << "'"
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<< std::endl;
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return -EINVAL;
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}
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controls.set(controlId->id(), val);
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return 0;
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}
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std::string CaptureScript::parseScalar()
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{
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EventPtr event = nextEvent(YAML_SCALAR_EVENT);
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if (!event)
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return "";
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return eventScalarValue(event);
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}
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ControlValue CaptureScript::parseRectangles()
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{
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std::vector<libcamera::Rectangle> rectangles;
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std::vector<std::vector<std::string>> arrays = parseArrays();
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if (arrays.empty())
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return {};
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for (const std::vector<std::string> &values : arrays) {
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if (values.size() != 4) {
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std::cerr << "Error parsing Rectangle: expected "
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<< "array with 4 parameters" << std::endl;
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return {};
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}
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Rectangle rect = unpackRectangle(values);
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rectangles.push_back(rect);
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}
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ControlValue controlValue;
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controlValue.set(Span<const Rectangle>(rectangles));
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return controlValue;
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}
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std::vector<std::vector<std::string>> CaptureScript::parseArrays()
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{
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EventPtr event = nextEvent(YAML_SEQUENCE_START_EVENT);
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if (!event)
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return {};
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event = nextEvent();
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if (!event)
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return {};
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std::vector<std::vector<std::string>> valueArrays;
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/* Parse single array. */
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if (event->type == YAML_SCALAR_EVENT) {
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std::string firstValue = eventScalarValue(event);
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if (firstValue.empty())
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return {};
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std::vector<std::string> remaining = parseSingleArray();
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std::vector<std::string> values = { firstValue };
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values.insert(std::end(values),
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std::begin(remaining), std::end(remaining));
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valueArrays.push_back(values);
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return valueArrays;
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}
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/* Parse array of arrays. */
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while (1) {
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switch (event->type) {
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case YAML_SEQUENCE_START_EVENT: {
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std::vector<std::string> values = parseSingleArray();
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valueArrays.push_back(values);
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break;
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}
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case YAML_SEQUENCE_END_EVENT:
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return valueArrays;
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default:
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return {};
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}
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event = nextEvent();
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if (!event)
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return {};
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}
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}
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std::vector<std::string> CaptureScript::parseSingleArray()
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{
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std::vector<std::string> values;
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while (1) {
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EventPtr event = nextEvent();
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if (!event)
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return {};
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switch (event->type) {
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case YAML_SCALAR_EVENT: {
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std::string value = eventScalarValue(event);
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if (value.empty())
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return {};
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values.push_back(value);
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break;
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}
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case YAML_SEQUENCE_END_EVENT:
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return values;
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default:
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return {};
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}
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}
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}
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void CaptureScript::unpackFailure(const ControlId *id, const std::string &repr)
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{
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static const std::map<unsigned int, const char *> typeNames = {
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{ ControlTypeNone, "none" },
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{ ControlTypeBool, "bool" },
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{ ControlTypeByte, "byte" },
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{ ControlTypeInteger32, "int32" },
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{ ControlTypeInteger64, "int64" },
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{ ControlTypeFloat, "float" },
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{ ControlTypeString, "string" },
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{ ControlTypeRectangle, "Rectangle" },
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{ ControlTypeSize, "Size" },
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};
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const char *typeName;
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auto it = typeNames.find(id->type());
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if (it != typeNames.end())
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typeName = it->second;
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else
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typeName = "unknown";
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std::cerr << "Unsupported control '" << repr << "' for "
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<< typeName << " control " << id->name() << std::endl;
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}
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ControlValue CaptureScript::unpackControl(const ControlId *id)
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{
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/* Parse complex types. */
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switch (id->type()) {
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case ControlTypeRectangle:
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return parseRectangles();
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case ControlTypeSize:
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/* \todo Parse Sizes. */
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return {};
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default:
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break;
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}
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/* Parse basic types represented by a single scalar. */
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const std::string repr = parseScalar();
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if (repr.empty())
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return {};
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ControlValue value{};
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switch (id->type()) {
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case ControlTypeNone:
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break;
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case ControlTypeBool: {
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bool val;
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if (repr == "true") {
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val = true;
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} else if (repr == "false") {
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val = false;
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} else {
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unpackFailure(id, repr);
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return value;
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}
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value.set<bool>(val);
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break;
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}
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case ControlTypeByte: {
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uint8_t val = strtol(repr.c_str(), NULL, 10);
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value.set<uint8_t>(val);
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break;
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}
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case ControlTypeInteger32: {
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int32_t val = strtol(repr.c_str(), NULL, 10);
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value.set<int32_t>(val);
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break;
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}
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case ControlTypeInteger64: {
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int64_t val = strtoll(repr.c_str(), NULL, 10);
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value.set<int64_t>(val);
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break;
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}
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case ControlTypeFloat: {
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float val = strtof(repr.c_str(), NULL);
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value.set<float>(val);
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break;
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}
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case ControlTypeString: {
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value.set<std::string>(repr);
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break;
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}
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default:
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std::cerr << "Unsupported control type" << std::endl;
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break;
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}
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return value;
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}
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libcamera::Rectangle CaptureScript::unpackRectangle(const std::vector<std::string> &strVec)
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{
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int x = strtol(strVec[0].c_str(), NULL, 10);
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int y = strtol(strVec[1].c_str(), NULL, 10);
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unsigned int width = strtoul(strVec[2].c_str(), NULL, 10);
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unsigned int height = strtoul(strVec[3].c_str(), NULL, 10);
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return Rectangle(x, y, width, height);
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}
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