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110 lines
3.1 KiB
Python
110 lines
3.1 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Picard, the next-generation MusicBrainz tagger
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#
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# Copyright (C) 2024 Giorgio Fontanive
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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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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#
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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, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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from copy import copy
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from enum import IntEnum
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from PyQt6.QtCore import QBuffer
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from PyQt6.QtGui import QImage
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from picard.plugin import ExtensionPoint
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from picard.util import imageinfo
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ext_point_cover_art_processors = ExtensionPoint(label='cover_art_processors')
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class CoverArtProcessingError(Exception):
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pass
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class CoverArtEncodingError(CoverArtProcessingError):
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pass
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class ProcessingTarget(IntEnum):
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TAGS = 0
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FILE = 1
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BOTH = 2
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class ProcessingImage:
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def __init__(self, image, info=None):
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self.set_result(image)
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if info is None and not isinstance(image, QImage):
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self.info = imageinfo.identify(image)
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else:
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self.info = info
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def copy(self):
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return ProcessingImage(self._qimage.copy(), copy(self.info))
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def set_result(self, image):
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if isinstance(image, QImage):
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self._qimage = image
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else:
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self._qimage = QImage.fromData(image)
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def get_result(self, image_format=None, default_format=False, quality=90):
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if image_format is None:
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if not default_format:
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return self._qimage
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else:
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image_format = self.info.format
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buffer = QBuffer()
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if not self._qimage.save(buffer, image_format, quality=quality):
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raise CoverArtEncodingError(f"Failed to encode into {image_format}")
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qbytearray = buffer.data()
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return qbytearray.data()
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class ImageProcessor:
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def save_to_tags(self):
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return False
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def save_to_file(self):
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return False
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def same_processing(self):
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return False
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def run(self, image, target):
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pass
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def get_cover_art_processors():
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queue_both, queue_tags, queue_file = [], [], []
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for processor in ext_point_cover_art_processors:
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if processor.same_processing():
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queue_both.append(processor)
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else:
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if processor.save_to_tags():
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queue_tags.append(processor)
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if processor.save_to_file():
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queue_file.append(processor)
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return queue_both, queue_tags, queue_file
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def register_cover_art_processor(cover_art_processor):
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instance = cover_art_processor()
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ext_point_cover_art_processors.register(cover_art_processor.__module__, instance)
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