546 lines
21 KiB
Lua
546 lines
21 KiB
Lua
--[[
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UltraHDR storage for darktable
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copyright (c) 2024 Krzysztof Kotowicz
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darktable 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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darktable 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 darktable. If not, see <http://www.gnu.org/licenses/>.
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]] --[[
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ULTRAHDR
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Add a new storage option to generate UltraHDR JPG images.
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https://developer.android.com/media/platform/hdr-image-format
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Of all exported files, the storage detects pairs of files generated from the same source image,
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assuming the first one encountered is the base SDR image, and the second one is the gainmap
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(alternatively, you can tag the gainmaps with a "gainmap" tag).
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The images are merged using libultrahdr example application (ultrahdr_app).
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ADDITIONAL SOFTWARE NEEDED FOR THIS SCRIPT
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* ultrahdr_app (built using https://github.com/google/libultrahdr/blob/main/docs/building.md instructions)
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* exiftool
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* ffmpeg
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USAGE
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* require this file from your main luarc config file
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* set binary tool paths
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]] local dt = require "darktable"
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local du = require "lib/dtutils"
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local df = require "lib/dtutils.file"
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local log = require "lib/dtutils.log"
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local dtsys = require "lib/dtutils.system"
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local dd = require "lib/dtutils.debug"
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local gettext = dt.gettext.gettext
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local namespace = "module_ultrahdr"
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-- works with darktable API version from 5.0.0 on
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du.check_min_api_version("7.0.0", "ultrahdr")
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dt.gettext.bindtextdomain(namespace, dt.configuration.config_dir .. "/lua/locale/")
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local function _(msgid)
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return gettext(msgid)
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end
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local job
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local GUI = {
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optionwidgets = {
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settings_label = {},
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encoding_variant_combo = {},
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encoding_settings_box = {},
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output_settings_label = {},
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output_settings_box = {},
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use_original_directory = {},
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output_directory_widget = {},
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copy_exif = {},
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import_to_darktable = {},
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metadata_path_label = {},
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metadata_path_widget = {},
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metadata_path_box = {},
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edit_executables_button = {},
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executable_path_widget = {}
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},
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options = {},
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run = {}
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}
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local flags = {}
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flags.event_registered = false -- keep track of whether we've added an event callback or not
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flags.module_installed = false -- keep track of whether the module is module_installed
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local script_data = {}
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script_data.metadata = {
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name = "ultrahdr",
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purpose = _("generate UltraHDR images"),
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author = "Krzysztof Kotowicz"
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}
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local PS = dt.configuration.running_os == "windows" and "\\" or "/"
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local ENCODING_VARIANT_SDR_AND_GAINMAP = 1
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local ENCODING_VARIANT_SDR_AND_HDR = 2
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local function save_preferences()
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dt.preferences.write(namespace, "encoding_variant", "integer", GUI.optionwidgets.encoding_variant_combo.selected)
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if GUI.optionwidgets.metadata_path_widget.value then
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dt.preferences.write(namespace, "metadata_path", "string", GUI.optionwidgets.metadata_path_widget.value)
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end
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dt.preferences.write(namespace, "use_original_directory", "bool", GUI.optionwidgets.use_original_directory.value)
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dt.preferences.write(namespace, "output_directory", "string", GUI.optionwidgets.output_directory_widget.value)
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dt.preferences.write(namespace, "import_to_darktable", "bool", GUI.optionwidgets.import_to_darktable.value)
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dt.preferences.write(namespace, "copy_exif", "bool", GUI.optionwidgets.copy_exif.value)
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end
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local function load_preferences()
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GUI.optionwidgets.encoding_variant_combo.selected = dt.preferences.read(namespace, "encoding_variant", "integer") or
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ENCODING_VARIANT_SDR_AND_GAINMAP
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GUI.optionwidgets.metadata_path_widget.value = dt.preferences.read(namespace, "metadata_path", "string")
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GUI.optionwidgets.use_original_directory.value = dt.preferences.read(namespace, "use_original_directory", "bool")
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GUI.optionwidgets.output_directory_widget.value = dt.preferences.read(namespace, "output_directory", "string")
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GUI.optionwidgets.import_to_darktable.value = dt.preferences.read(namespace, "import_to_darktable", "bool")
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GUI.optionwidgets.copy_exif.value = dt.preferences.read(namespace, "copy_exif", "bool")
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end
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local function get_encoding_variant()
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return GUI.optionwidgets.encoding_variant_combo.selected
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end
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local function assert_settings_correct(encoding_variant)
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local settings = {
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bin = {
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ultrahdr_app = df.check_if_bin_exists("ultrahdr_app"),
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exiftool = df.check_if_bin_exists("exiftool"),
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ffmpeg = df.check_if_bin_exists("ffmpeg")
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},
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output = GUI.optionwidgets.output_directory_widget.value,
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use_original_dir = GUI.optionwidgets.use_original_directory.value,
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import_to_darktable = GUI.optionwidgets.import_to_darktable.value,
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copy_exif = GUI.optionwidgets.copy_exif.value,
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metadata = GUI.optionwidgets.metadata_path_widget.value,
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tmpdir = dt.configuration.tmp_dir
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}
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if not settings.use_original_dir and not df.check_if_file_exists(settings.output) then
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dt.print(string.format(_("output directory (%s) not found, did you set the correct path?"), settings.output))
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return
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end
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for k, v in pairs(settings.bin) do
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if not v then
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dt.print(string.format(_("%s is not found, did you set the path?"), k))
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return
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end
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end
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if encoding_variant == ENCODING_VARIANT_SDR_AND_GAINMAP then
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if not df.check_if_file_exists(settings.metadata) then
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dt.print(_("metadata file not found, did you set the correct path?"))
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log.msg(log.error, "metadata file not found.")
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return
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end
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end
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return settings
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end
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local function get_stacks(images, encoding_variant)
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local stacks = {}
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local extra_image_content_type, extra_image_extension
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if encoding_variant == ENCODING_VARIANT_SDR_AND_GAINMAP then
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extra_image_content_type = "gainmap"
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elseif encoding_variant == ENCODING_VARIANT_SDR_AND_HDR then
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extra_image_extension = "jxl"
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extra_image_content_type = "hdr"
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end
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local tags = nil
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-- Group images into sdr, extra pairs based on their original filename, ignoring the extension
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-- Assume that the first encountered image from each filename is an sdr one, unless it has a tag matching the expected extra_image_type, or has the expected extension
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for k, v in pairs(images) do
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local is_extra = false
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tags = dt.tags.get_tags(v)
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for ignore, tag in pairs(tags) do
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if tag.name == extra_image_content_type then
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is_extra = true
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end
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end
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if extra_image_extension and df.get_filetype(v.filename) == extra_image_extension then
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is_extra = true
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end
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-- we assume every image in the stack is generated from the same source image file
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local key = df.chop_filetype(v.path .. PS .. v.filename)
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if stacks[key] == nil then
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stacks[key] = {}
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end
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if stacks[key]["sdr"] or is_extra then
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stacks[key][extra_image_content_type] = v
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else
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stacks[key]["sdr"] = v
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end
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end
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-- remove invalid stacks
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local count = 0
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for k, v in pairs(stacks) do
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if not v["sdr"] or not v[extra_image_content_type] then
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stacks[k] = nil
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elseif (v["sdr"].final_width ~= v[extra_image_content_type].final_width) or
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(v["sdr"].final_height ~= v[extra_image_content_type].final_height) then
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stacks[k] = nil
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elseif extra_image_extension and df.get_filetype(v[extra_image_content_type].filename) ~= extra_image_extension then
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stacks[k] = nil
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else
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count = count + 1
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end
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end
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return stacks, count
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end
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local function stop_job(job)
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job.valid = false
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end
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local function execute_cmd(cmd)
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log.msg(log.debug, cmd)
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return dtsys.external_command(cmd)
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end
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local function generate_ultrahdr(encoding_variant, images, settings, step, total_steps)
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local total_substeps
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local substep = 0
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local uhdr
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function update_job_progress()
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substep = substep + 1
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if substep > total_substeps then
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log.msg(log.debug,
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string.format("total_substeps count is too low for encoding_variant %d", encoding_variant))
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end
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job.percent = (total_substeps * step + substep) / (total_steps * total_substeps)
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end
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if encoding_variant == ENCODING_VARIANT_SDR_AND_GAINMAP then
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total_substeps = 6
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-- Export both SDR and gainmap to JPEGs
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local exporter = dt.new_format("jpeg")
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exporter.quality = 95
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local sdr = df.create_unique_filename(settings.tmpdir .. PS .. df.chop_filetype(images["sdr"].filename) ..
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".jpg")
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exporter:write_image(images["sdr"], sdr)
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local gainmap = df.create_unique_filename(settings.tmpdir .. PS .. images["gainmap"].filename .. "_gainmap.jpg")
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exporter:write_image(images["gainmap"], gainmap)
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log.msg(log.debug, string.format(_("Exported files: %s, %s"), sdr, gainmap))
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update_job_progress()
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-- Strip EXIFs
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execute_cmd(settings.bin.exiftool .. " -all= " .. df.sanitize_filename(sdr) .. " -o " ..
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df.sanitize_filename(sdr .. ".noexif"))
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execute_cmd(settings.bin.exiftool .. " -all= " .. df.sanitize_filename(gainmap) .. " -overwrite_original")
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update_job_progress()
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-- Merge files
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uhdr = df.chop_filetype(sdr) .. "_ultrahdr.jpg"
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execute_cmd(settings.bin.ultrahdr_app .. " -m 0 -M 0 -i " .. df.sanitize_filename(sdr .. ".noexif") .. " -g " ..
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df.sanitize_filename(gainmap) .. " -f " .. df.sanitize_filename(settings.metadata) .. " -z " ..
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df.sanitize_filename(uhdr))
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update_job_progress()
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-- Copy SDR's EXIF to UltraHDR file
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if settings.copy_exif then
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execute_cmd(settings.bin.exiftool .. " -tagsfromfile " .. df.sanitize_filename(sdr) .. " -all>all " ..
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df.sanitize_filename(uhdr) .. " -overwrite_original -preserve")
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end
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update_job_progress()
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-- Cleanup
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os.remove(sdr)
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os.remove(sdr .. ".noexif")
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os.remove(gainmap)
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update_job_progress()
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elseif encoding_variant == ENCODING_VARIANT_SDR_AND_HDR then
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total_substeps = 5
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-- https://discuss.pixls.us/t/manual-creation-of-ultrahdr-images/45004/20
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-- Step 1: Export SDR to PNG (HDR is already a JPEG-XL)
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local exporter = dt.new_format("png")
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exporter.bpp = 8
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local sdr = df.create_unique_filename(settings.tmpdir .. PS .. df.chop_filetype(images["sdr"].filename) ..
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".png")
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exporter:write_image(images["sdr"], sdr)
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uhdr = df.chop_filetype(sdr) .. "_ultrahdr.jpg"
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update_job_progress()
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local extra = df.create_unique_filename(settings.tmpdir .. PS .. images["hdr"].filename .. ".raw")
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-- Step 3: Generate libultrahdr RAW images
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execute_cmd(settings.bin.ffmpeg .. " -i " .. df.sanitize_filename(sdr) .. " -pix_fmt rgba -f rawvideo " ..
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df.sanitize_filename(sdr .. ".raw"))
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execute_cmd(settings.bin.ffmpeg .. " -i " ..
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df.sanitize_filename(images["hdr"].path .. PS .. images["hdr"].filename) ..
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" -pix_fmt p010le -f rawvideo " .. df.sanitize_filename(extra))
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update_job_progress()
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execute_cmd(settings.bin.ultrahdr_app .. " -m 0 -y " .. df.sanitize_filename(sdr .. ".raw") .. " -p " ..
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df.sanitize_filename(extra) .. " -a 0 -b 3 -c 1 -C 1 -t 2 -M 1 -s 1 -q 95 -Q 95 -D 1 " ..
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" -w " .. tostring(images["sdr"].final_width) .. " -h " .. tostring(images["sdr"].final_height) ..
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" -z " .. df.sanitize_filename(uhdr))
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update_job_progress()
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if settings.copy_exif then
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execute_cmd(settings.bin.exiftool .. " -tagsfromfile " .. df.sanitize_filename(sdr) .. " -all>all " ..
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df.sanitize_filename(uhdr) .. " -overwrite_original -preserve")
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end
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-- Cleanup
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os.remove(sdr)
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os.remove(sdr .. ".raw")
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os.remove(extra)
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update_job_progress()
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end
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local output_dir = settings.use_original_dir and images["sdr"].path or settings.output
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local output_file = df.create_unique_filename(output_dir .. PS .. df.get_filename(uhdr))
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df.file_move(uhdr, output_file)
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if settings.import_to_darktable then
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local img = dt.database.import(output_file)
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-- Add "ultrahdr" tag to the imported image
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local tagnr = dt.tags.find("ultrahdr")
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if tagnr == nil then
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dt.tags.create("ultrahdr")
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tagnr = dt.tags.find("ultrahdr")
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end
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dt.tags.attach(tagnr, img)
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end
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local msg = string.format(_("Generated %s."), df.get_filename(output_file))
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log.msg(log.info, msg)
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dt.print(msg)
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update_job_progress()
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end
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local function main()
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local saved_log_level = log.log_level()
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log.log_level(log.info)
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save_preferences()
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local encoding_variant = get_encoding_variant()
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log.msg(log.info, string.format("using encoding variant %d", encoding_variant))
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local settings = assert_settings_correct(encoding_variant)
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if not settings then
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dt.print(_("Export settings are incorrect, exiting..."))
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log.log_level(saved_log_level)
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return
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end
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local images = dt.gui.selection() -- get selected images
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if #images < 2 then
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dt.print(_("Select at least 2 images to generate UltraHDR image"))
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log.log_level(saved_log_level)
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return
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end
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local stacks, stack_count = get_stacks(images, encoding_variant)
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dt.print(string.format(_("Detected %d image stack(s)"), stack_count))
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if stack_count == 0 then
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log.log_level(saved_log_level)
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return
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end
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job = dt.gui.create_job(_("Generating UltraHDR images"), true, stop_job)
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local count = 0
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for i, v in pairs(stacks) do
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generate_ultrahdr(encoding_variant, v, settings, count, stack_count)
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count = count + 1
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-- sleep for a short moment to give stop_job callback function a chance to run
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dt.control.sleep(10)
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end
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-- stop job and remove progress_bar from ui, but only if not alreay canceled
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if (job.valid) then
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job.valid = false
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end
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local msg = string.format(_("Generated %d UltraHDR image(s)."), count)
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log.msg(log.info, msg)
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dt.print(msg)
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log.log_level(saved_log_level)
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end
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GUI.optionwidgets.settings_label = dt.new_widget("section_label") {
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label = _("UltraHDR settings")
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}
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GUI.optionwidgets.output_settings_label = dt.new_widget("section_label") {
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label = _("Output")
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}
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GUI.optionwidgets.output_directory_widget = dt.new_widget("file_chooser_button") {
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title = _("Select directory to write UltraHDR image files to"),
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is_directory = true
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}
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GUI.optionwidgets.use_original_directory = dt.new_widget("check_button") {
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label = _("Export to original directory"),
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tooltip = _("Write UltraHDR images to the same directory as their original images"),
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clicked_callback = function(self)
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GUI.optionwidgets.output_directory_widget.sensitive = not self.value
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end
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}
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GUI.optionwidgets.import_to_darktable = dt.new_widget("check_button") {
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label = _("Import UltraHDRs to Darktable"),
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tooltip = _("Import UltraHDR images to Darktable library after generating, with an 'ultrahdr' tag attached.")
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}
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GUI.optionwidgets.copy_exif = dt.new_widget("check_button") {
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label = _("Copy EXIF data from SDR file(s)"),
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tooltip = _("Copy EXIF data into UltraHDR file(s) from their SDR sources.")
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}
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GUI.optionwidgets.output_settings_box = dt.new_widget("box") {
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orientation = "vertical",
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GUI.optionwidgets.output_settings_label,
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GUI.optionwidgets.use_original_directory,
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GUI.optionwidgets.output_directory_widget,
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GUI.optionwidgets.import_to_darktable,
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GUI.optionwidgets.copy_exif
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}
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GUI.optionwidgets.metadata_path_label = dt.new_widget("label") {
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label = _("ultrahdr_app metadata.cfg file")
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}
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GUI.optionwidgets.metadata_path_widget = dt.new_widget("file_chooser_button") {
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title = "select libultrahdr metadata path",
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is_directory = false
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}
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GUI.optionwidgets.metadata_path_box = dt.new_widget("box") {
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orientation = "vertical",
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GUI.optionwidgets.metadata_path_label,
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GUI.optionwidgets.metadata_path_widget
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}
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GUI.optionwidgets.encoding_variant_combo = dt.new_widget("combobox") {
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label = _("Source images"),
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tooltip = string.format(_([[Select types of images in the selection.
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%s: SDR image paired with a monochromatic gain map image
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%s: SDR image paired with a JPEG-XL HDR image (10-bit, 'PQ P3 RGB' profile recommended)
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UltraHDR image will be created for each pair of images that:
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- have the same underlying image path + filename (ignoring file extension)
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- have the same dimensions
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It is assumed that the first image in a pair is the SDR , unless it has a "hdr" / "gainmap" tag.
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]]), _("SDR + monochrome gainmap"), _("SDR + JPEG-XL HDR")),
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selected = 0,
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changed_callback = function(self)
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if self.selected == ENCODING_VARIANT_SDR_AND_GAINMAP then
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GUI.optionwidgets.metadata_path_box.visible = true
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else
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GUI.optionwidgets.metadata_path_box.visible = false
|
|
end
|
|
end,
|
|
_("SDR + monochrome gainmap"), -- ENCODING_VARIANT_SDR_AND_GAINMAP,
|
|
_("SDR + JPEG-XL HDR") -- ENCODING_VARIANT_SDR_AND_HDR,
|
|
}
|
|
|
|
GUI.optionwidgets.encoding_settings_box = dt.new_widget("box") {
|
|
orientation = "vertical",
|
|
GUI.optionwidgets.encoding_variant_combo,
|
|
GUI.optionwidgets.metadata_path_box
|
|
}
|
|
|
|
GUI.optionwidgets.executable_path_widget = df.executable_path_widget({"ultrahdr_app", "exiftool", "ffmpeg"})
|
|
GUI.optionwidgets.executable_path_widget.visible = false
|
|
|
|
GUI.optionwidgets.edit_executables_button = dt.new_widget("button") {
|
|
label = _("Show / hide executables"),
|
|
tooltip = _("Show / hide settings for executable files required for the plugin functionality"),
|
|
clicked_callback = function()
|
|
GUI.optionwidgets.executable_path_widget.visible = not GUI.optionwidgets.executable_path_widget.visible
|
|
end
|
|
}
|
|
|
|
GUI.options = dt.new_widget("box") {
|
|
orientation = "vertical",
|
|
GUI.optionwidgets.settings_label,
|
|
GUI.optionwidgets.encoding_settings_box,
|
|
GUI.optionwidgets.edit_executables_button,
|
|
GUI.optionwidgets.executable_path_widget,
|
|
GUI.optionwidgets.output_settings_box
|
|
}
|
|
|
|
GUI.run = dt.new_widget("button") {
|
|
label = _("Generate UltraHDR"),
|
|
tooltip = _([[Generate UltraHDR image(s) from selection
|
|
|
|
Global options in the export module apply to the SDR image. Make sure that a proper color 'profile' setting is used (e.g. Display P3)
|
|
]]),
|
|
clicked_callback = main
|
|
}
|
|
|
|
load_preferences()
|
|
|
|
local function install_module()
|
|
if flags.module_installed then
|
|
return
|
|
end
|
|
dt.register_lib( -- register module
|
|
namespace, -- Module name
|
|
_("UltraHDR"), -- name
|
|
true, -- expandable
|
|
true, -- resetable
|
|
{
|
|
[dt.gui.views.lighttable] = {"DT_UI_CONTAINER_PANEL_RIGHT_CENTER", 99}
|
|
}, -- containers
|
|
dt.new_widget("box") {
|
|
orientation = "vertical",
|
|
GUI.options,
|
|
GUI.run
|
|
}, nil, -- view_enter
|
|
nil -- view_leave
|
|
)
|
|
end
|
|
|
|
local function destroy()
|
|
dt.gui.libs[namespace].visible = false
|
|
end
|
|
|
|
local function restart()
|
|
dt.gui.libs[namespace].visible = true
|
|
end
|
|
|
|
if dt.gui.current_view().id == "lighttable" then -- make sure we are in lighttable view
|
|
install_module() -- register the lib
|
|
else
|
|
if not flags.event_registered then -- if we are not in lighttable view then register an event to signal when we might be
|
|
-- https://www.darktable.org/lua-api/index.html#darktable_register_event
|
|
dt.register_event(namespace, "view-changed", -- we want to be informed when the view changes
|
|
function(event, old_view, new_view)
|
|
if new_view.name == "lighttable" and old_view.name == "darkroom" then -- if the view changes from darkroom to lighttable
|
|
install_module() -- register the lib
|
|
end
|
|
end)
|
|
flags.event_registered = true -- keep track of whether we have an event handler installed
|
|
end
|
|
end
|
|
|
|
script_data.destroy = destroy
|
|
script_data.restart = restart
|
|
script_data.destroy_method = "hide"
|
|
script_data.show = restart
|
|
|
|
return script_data
|