119 lines
4.1 KiB
Lua
119 lines
4.1 KiB
Lua
--[[
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Copyright (C) 2015 Till Theato <theato@ttill.de>.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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]]
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--[[
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cr2hdr Magic Lantern Dual ISO processing.
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This script automates the steps involved to process an image created
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with the Magic Lantern Dual ISO module. Upon invoking the script with a
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shortcut "cr2hdr" provided by Magic Lantern is run on the selected
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images. The processed files are imported. They are also made group
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leaders to hide the original files.
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ADDITIONAL SOFTWARE NEEDED FOR THIS SCRIPT
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* cr2hdr (sources can be obtained through the Magic Lantern repository)
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USAGE
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* require this script from your main lua file
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* trigger conversion on selected/hovered images by shortcut (set shortcut in settings dialog)
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* it is also possible to have the script run after importing a collection (optin, since it is not that fast)
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]]
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local darktable = require "darktable"
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local du = require "lib/dtutils"
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-- Tested with darktable 2.0.1
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du.check_min_api_version("2.0.0", "cr2hdr")
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local CURR_API_STRING = darktable.configuration.api_version_string
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local queue = {}
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local processed_files = {}
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local job
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local function file_imported(event, image)
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local filename = image.path .. "/" .. image.filename
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if processed_files[filename] then
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image.make_group_leader(image)
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processed_files[filename] = false
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else
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if darktable.preferences.read("cr2hdr", "onimport", "bool") then
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table.insert(queue, image)
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end
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end
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end
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local function stop_conversion(job)
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job.valid = false
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end
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local function convert_image(image)
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if string.sub(image.filename, -3) == "CR2" then
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local filename = image.path .. "/" .. image.filename
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local result = darktable.control.execute( "cr2hdr " .. filename)
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local out_filename = string.gsub(filename, ".CR2", ".DNG")
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local file = io.open(out_filename)
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if file then
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file:close()
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processed_files[out_filename] = true
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darktable.database.import(out_filename)
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else
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darktable.print_error(filename .. ": cr2hdr failed.")
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end
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else
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darktable.print_error(image.filename .. " is not a Canon RAW.")
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end
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end
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local function convert_images()
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if next(queue) == nil then return end
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job = darktable.gui.create_job("Dual ISO conversion", true, stop_conversion)
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for key,image in pairs(queue) do
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if job.valid then
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job.percent = (key-1)/#queue
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convert_image(image)
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else
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break
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end
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end
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local success_count = 0
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for _ in pairs(processed_files) do success_count = success_count + 1 end
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darktable.print("Dual ISO conversion successful on " .. success_count .. "/" .. #queue .. " images.")
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job.valid = false
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processed_files = {}
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queue = {}
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end
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local function film_imported(event, film)
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if darktable.preferences.read("cr2hdr", "onimport", "bool") then
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convert_images()
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end
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end
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local function convert_action_images(shortcut)
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queue = darktable.gui.action_images
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convert_images()
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end
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darktable.register_event("shortcut",
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convert_action_images, "Run cr2hdr (Magic Lantern DualISO converter) on selected images")
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darktable.register_event("post-import-image",
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file_imported)
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darktable.register_event("post-import-film",
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film_imported)
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darktable.preferences.register("cr2hdr", "onimport", "bool", "Invoke on import", "If true then cr2hdr will try to proccess every file during importing. Warning: cr2hdr is quite slow even in figuring out on whether the file is Dual ISO or not.", false)
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