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[doc] Minor improvements
[yt-dlp.git] / yt_dlp / postprocessor / embedthumbnail.py
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95131b21 1import base64
2import imghdr
ddbed364 3import os
06167fbb 4import re
f8271158 5import subprocess
06167fbb 6
8326b00a 7from .common import PostProcessor
f8271158 8from .ffmpeg import FFmpegPostProcessor, FFmpegThumbnailsConvertorPP
9b8ee23b 9from ..dependencies import mutagen
ddbed364 10from ..utils import (
f8271158 11 Popen,
12 PostProcessingError,
ddbed364 13 check_executable,
2cc6d135 14 encodeArgument,
ddbed364 15 encodeFilename,
06167fbb 16 error_to_compat_str,
ddbed364 17 prepend_extension,
f5b1bca9 18 shell_quote,
ddbed364 19)
20
9b8ee23b 21if mutagen:
22 from mutagen.flac import FLAC, Picture
23 from mutagen.mp4 import MP4, MP4Cover
24 from mutagen.oggopus import OggOpus
25 from mutagen.oggvorbis import OggVorbis
26
ddbed364 27
28class EmbedThumbnailPPError(PostProcessingError):
29 pass
30
31
31fd9c76 32class EmbedThumbnailPP(FFmpegPostProcessor):
1b77b347 33
8e595397 34 def __init__(self, downloader=None, already_have_thumbnail=False):
8fa43c73 35 FFmpegPostProcessor.__init__(self, downloader)
8e595397
YCH
36 self._already_have_thumbnail = already_have_thumbnail
37
95131b21 38 def _get_thumbnail_resolution(self, filename, thumbnail_dict):
39 def guess():
40 width, height = thumbnail_dict.get('width'), thumbnail_dict.get('height')
41 if width and height:
42 return width, height
43
44 try:
45 size_regex = r',\s*(?P<w>\d+)x(?P<h>\d+)\s*[,\[]'
00034c14 46 size_result = self.run_ffmpeg(filename, None, ['-hide_banner'], expected_retcodes=(1,))
95131b21 47 mobj = re.search(size_regex, size_result)
48 if mobj is None:
49 return guess()
50 except PostProcessingError as err:
51 self.report_warning('unable to find the thumbnail resolution; %s' % error_to_compat_str(err))
52 return guess()
53 return int(mobj.group('w')), int(mobj.group('h'))
54
acdecdfa 55 def _report_run(self, exe, filename):
86e5f3ed 56 self.to_screen(f'{exe}: Adding thumbnail to "{filename}"')
acdecdfa 57
8326b00a 58 @PostProcessor._restrict_to(images=False)
ddbed364 59 def run(self, info):
60 filename = info['filepath']
61 temp_filename = prepend_extension(filename, 'temp')
ddbed364 62
8e595397 63 if not info.get('thumbnails'):
1b77b347 64 self.to_screen('There aren\'t any thumbnails to embed')
b5cbe3d6 65 return [], info
ddbed364 66
337e0c62 67 idx = next((-i for i, t in enumerate(info['thumbnails'][::-1], 1) if t.get('filepath')), None)
885cc0b7 68 if idx is None:
69 self.to_screen('There are no thumbnails on disk')
70 return [], info
71 thumbnail_filename = info['thumbnails'][idx]['filepath']
c33a8639 72 if not os.path.exists(encodeFilename(thumbnail_filename)):
f446cc66 73 self.report_warning('Skipping embedding the thumbnail because the file is missing.')
c33a8639
YCH
74 return [], info
75
bff857a8 76 # Correct extension for WebP file with wrong extension (see #25687, #25717)
8fa43c73 77 convertor = FFmpegThumbnailsConvertorPP(self._downloader)
885cc0b7 78 convertor.fixup_webp(info, idx)
8fa43c73 79
885cc0b7 80 original_thumbnail = thumbnail_filename = info['thumbnails'][idx]['filepath']
bff857a8 81
4d224a30 82 thumbnail_ext = os.path.splitext(thumbnail_filename)[1][1:]
7774db5b
ES
83 # Convert unsupported thumbnail formats (see #25687, #25717)
84 # PNG is preferred since JPEG is lossy
85 if info['ext'] not in ('mkv', 'mka') and thumbnail_ext not in ('jpg', 'jpeg', 'png'):
a927acb1 86 thumbnail_filename = convertor.convert_thumbnail(thumbnail_filename, 'png')
87 thumbnail_ext = 'png'
777d5a45 88
ca879745 89 mtime = os.stat(encodeFilename(filename)).st_mtime
90
67002a5a 91 success = True
8e2915d7 92 if info['ext'] == 'mp3':
92995e62 93 options = [
f8942946 94 '-c', 'copy', '-map', '0:0', '-map', '1:0', '-write_id3v1', '1', '-id3v2_version', '3',
e51f368c 95 '-metadata:s:v', 'title="Album cover"', '-metadata:s:v', 'comment="Cover (front)"']
ddbed364 96
acdecdfa 97 self._report_run('ffmpeg', filename)
bb8ca1d1 98 self.run_ffmpeg_multiple_files([filename, thumbnail_filename], temp_filename, options)
ddbed364 99
06167fbb 100 elif info['ext'] in ['mkv', 'mka']:
397235c5 101 options = list(self.stream_copy_opts())
ddbed364 102
7774db5b 103 mimetype = 'image/%s' % ('jpeg' if thumbnail_ext in ('jpg', 'jpeg') else thumbnail_ext)
06167fbb 104 old_stream, new_stream = self.get_stream_number(
105 filename, ('tags', 'mimetype'), mimetype)
106 if old_stream is not None:
107 options.extend(['-map', '-0:%d' % old_stream])
108 new_stream -= 1
109 options.extend([
110 '-attach', thumbnail_filename,
111 '-metadata:s:%d' % new_stream, 'mimetype=%s' % mimetype,
112 '-metadata:s:%d' % new_stream, 'filename=cover.%s' % thumbnail_ext])
ddbed364 113
acdecdfa 114 self._report_run('ffmpeg', filename)
06167fbb 115 self.run_ffmpeg(filename, temp_filename, options)
116
117 elif info['ext'] in ['m4a', 'mp4', 'mov']:
e858a9d6 118 prefer_atomicparsley = 'embed-thumbnail-atomicparsley' in self.get_param('compat_opts', [])
acdecdfa 119 # Method 1: Use mutagen
9b8ee23b 120 if not mutagen or prefer_atomicparsley:
acdecdfa 121 success = False
122 else:
123 try:
124 self._report_run('mutagen', filename)
125 meta = MP4(filename)
126 # NOTE: the 'covr' atom is a non-standard MPEG-4 atom,
127 # Apple iTunes 'M4A' files include the 'moov.udta.meta.ilst' atom.
f17c7022 128 f = {'jpeg': MP4Cover.FORMAT_JPEG, 'png': MP4Cover.FORMAT_PNG}[imghdr.what(thumbnail_filename)]
acdecdfa 129 with open(thumbnail_filename, 'rb') as thumbfile:
130 thumb_data = thumbfile.read()
131 meta.tags['covr'] = [MP4Cover(data=thumb_data, imageformat=f)]
132 meta.save()
133 temp_filename = filename
134 except Exception as err:
135 self.report_warning('unable to embed using mutagen; %s' % error_to_compat_str(err))
136 success = False
06167fbb 137
77cee0f1 138 # Method 2: Use AtomicParsley
139 if not success:
140 success = True
141 atomicparsley = next((
142 x for x in ['AtomicParsley', 'atomicparsley']
143 if check_executable(x, ['-v'])), None)
144 if atomicparsley is None:
145 self.to_screen('Neither mutagen nor AtomicParsley was found. Falling back to ffmpeg')
146 success = False
147 else:
148 if not prefer_atomicparsley:
149 self.to_screen('mutagen was not found. Falling back to AtomicParsley')
150 cmd = [encodeFilename(atomicparsley, True),
151 encodeFilename(filename, True),
152 encodeArgument('--artwork'),
153 encodeFilename(thumbnail_filename, True),
154 encodeArgument('-o'),
155 encodeFilename(temp_filename, True)]
156 cmd += [encodeArgument(o) for o in self._configuration_args('AtomicParsley')]
157
158 self._report_run('atomicparsley', filename)
159 self.write_debug('AtomicParsley command line: %s' % shell_quote(cmd))
160 p = Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
161 stdout, stderr = p.communicate_or_kill()
162 if p.returncode != 0:
163 msg = stderr.decode('utf-8', 'replace').strip()
164 self.report_warning(f'Unable to embed thumbnails using AtomicParsley; {msg}')
165 # for formats that don't support thumbnails (like 3gp) AtomicParsley
166 # won't create to the temporary file
167 if b'No changes' in stdout:
168 self.report_warning('The file format doesn\'t support embedding a thumbnail')
169 success = False
170
171 # Method 3: Use ffmpeg+ffprobe
172 # Thumbnails attached using this method doesn't show up as cover in some cases
173 # See https://github.com/yt-dlp/yt-dlp/issues/2125, https://github.com/yt-dlp/yt-dlp/issues/411
174 if not success:
acdecdfa 175 success = True
176 try:
397235c5 177 options = [*self.stream_copy_opts(), '-map', '1']
acdecdfa 178
179 old_stream, new_stream = self.get_stream_number(
180 filename, ('disposition', 'attached_pic'), 1)
181 if old_stream is not None:
182 options.extend(['-map', '-0:%d' % old_stream])
183 new_stream -= 1
184 options.extend(['-disposition:%s' % new_stream, 'attached_pic'])
185
186 self._report_run('ffmpeg', filename)
187 self.run_ffmpeg_multiple_files([filename, thumbnail_filename], temp_filename, options)
188 except PostProcessingError as err:
06167fbb 189 success = False
77cee0f1 190 raise EmbedThumbnailPPError(f'Unable to embed using ffprobe & ffmpeg; {err}')
06167fbb 191
95131b21 192 elif info['ext'] in ['ogg', 'opus', 'flac']:
9b8ee23b 193 if not mutagen:
e38df8f9 194 raise EmbedThumbnailPPError('module mutagen was not found. Please install using `python -m pip install mutagen`')
06167fbb 195
acdecdfa 196 self._report_run('mutagen', filename)
95131b21 197 f = {'opus': OggOpus, 'flac': FLAC, 'ogg': OggVorbis}[info['ext']](filename)
198
199 pic = Picture()
200 pic.mime = 'image/%s' % imghdr.what(thumbnail_filename)
201 with open(thumbnail_filename, 'rb') as thumbfile:
202 pic.data = thumbfile.read()
203 pic.type = 3 # front cover
885cc0b7 204 res = self._get_thumbnail_resolution(thumbnail_filename, info['thumbnails'][idx])
95131b21 205 if res is not None:
206 pic.width, pic.height = res
207
208 if info['ext'] == 'flac':
209 f.add_picture(pic)
210 else:
211 # https://wiki.xiph.org/VorbisComment#METADATA_BLOCK_PICTURE
212 f['METADATA_BLOCK_PICTURE'] = base64.b64encode(pic.write()).decode('ascii')
06167fbb 213 f.save()
acdecdfa 214 temp_filename = filename
67002a5a 215
ddbed364 216 else:
95131b21 217 raise EmbedThumbnailPPError('Supported filetypes for thumbnail embedding are: mp3, mkv/mka, ogg/opus/flac, m4a/mp4/mov')
ddbed364 218
06167fbb 219 if success and temp_filename != filename:
d75201a8 220 os.replace(temp_filename, filename)
2e339f59 221
ca879745 222 self.try_utime(filename, mtime, mtime)
223
2e339f59 224 files_to_delete = [thumbnail_filename]
de6000d9 225 if self._already_have_thumbnail:
2e339f59 226 if original_thumbnail == thumbnail_filename:
227 files_to_delete = []
0e004051 228 elif original_thumbnail != thumbnail_filename:
229 files_to_delete.append(original_thumbnail)
67002a5a 230 return files_to_delete, info