e40d476168
Embedding thumbnails inside ID3v2 tags is done by FFmpeg quite nicely, there's no need to depend on the external dependency. Also, FFmpeg already used for many post-processing and conversion work.
83 lines
2.9 KiB
Python
83 lines
2.9 KiB
Python
# coding: utf-8
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from __future__ import unicode_literals
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import os
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try:
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import imghdr
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from mutagen.mp4 import MP4, MP4Cover, MP4MetadataError
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except ImportError:
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raise Exception('[embedthumbnail] Mutagen isn\'t found, install from PyPI.')
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from .ffmpeg import FFmpegPostProcessor
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from ..utils import (
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prepend_extension,
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encodeFilename,
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PostProcessingError
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)
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class EmbedThumbnailPPError(PostProcessingError):
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pass
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class EmbedThumbnailPP(FFmpegPostProcessor):
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def __init__(self, downloader=None, already_have_thumbnail=False):
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super(EmbedThumbnailPP, self).__init__(downloader)
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self._already_have_thumbnail = already_have_thumbnail
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def run(self, info):
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filename = info['filepath']
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temp_filename = prepend_extension(filename, 'temp')
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if not info.get('thumbnails'):
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self._downloader.to_screen('[embedthumbnail] There aren\'t any thumbnails to embed')
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return [], info
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thumbnail_filename = info['thumbnails'][-1]['filename']
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if not os.path.exists(encodeFilename(thumbnail_filename)):
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self._downloader.report_warning(
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'Skipping embedding the thumbnail because the file is missing.')
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return [], info
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if info['ext'] == 'mp3':
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options = [
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'-c', 'copy', '-map', '0', '-map', '1',
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'-metadata:s:v', 'title="Album cover"', '-metadata:s:v', 'comment="Cover (Front)"']
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self._downloader.to_screen('[ffmpeg] Adding thumbnail to "%s"' % filename)
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self.run_ffmpeg_multiple_files([filename, thumbnail_filename], temp_filename, options)
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if not self._already_have_thumbnail:
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os.remove(encodeFilename(thumbnail_filename))
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os.remove(encodeFilename(filename))
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os.rename(encodeFilename(temp_filename), encodeFilename(filename))
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elif info['ext'] in ['m4a', 'mp4']:
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try:
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meta = MP4(filename)
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except MP4MetadataError:
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raise EmbedThumbnailPPError("MPEG-4 file's atomic structure for embedding isn't correct!")
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# NOTE: the 'covr' atom is a non-standard MPEG-4 atom,
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# Apple iTunes 'M4A' files include the 'moov.udta.meta.ilst' atom.
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meta.tags['covr'] = [MP4Cover(
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data=open(thumbnail_filename, 'rb').read(),
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imageformat=MP4Cover.FORMAT_JPEG if
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imghdr.what(thumbnail_filename) == 'jpeg'
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else MP4Cover.FORMAT_PNG)]
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meta.save()
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self._downloader.to_screen('[mutagen.mp4] Merged thumbnail to "%s"' % filename)
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if not self._already_have_thumbnail:
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os.remove(encodeFilename(thumbnail_filename))
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else:
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raise EmbedThumbnailPPError('Only mp3, m4a/mp4 are supported for thumbnail embedding for now.')
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return [], info
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