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[youtubedl] / youtube_dl / postprocessor / embedthumbnail.py
1 # coding: utf-8
2 from __future__ import unicode_literals
3
4
5 import os
6 import subprocess
7
8 from .ffmpeg import FFmpegPostProcessor
9
10 from ..utils import (
11 check_executable,
12 encodeArgument,
13 encodeFilename,
14 PostProcessingError,
15 prepend_extension,
16 shell_quote
17 )
18
19
20 class EmbedThumbnailPPError(PostProcessingError):
21 pass
22
23
24 class EmbedThumbnailPP(FFmpegPostProcessor):
25 def __init__(self, downloader=None, already_have_thumbnail=False):
26 super(EmbedThumbnailPP, self).__init__(downloader)
27 self._already_have_thumbnail = already_have_thumbnail
28
29 def run(self, info):
30 filename = info['filepath']
31 temp_filename = prepend_extension(filename, 'temp')
32
33 if not info.get('thumbnails'):
34 raise EmbedThumbnailPPError('Thumbnail was not found. Nothing to do.')
35
36 thumbnail_filename = info['thumbnails'][-1]['filename']
37
38 if not os.path.exists(encodeFilename(thumbnail_filename)):
39 self._downloader.report_warning(
40 'Skipping embedding the thumbnail because the file is missing.')
41 return [], info
42
43 if info['ext'] == 'mp3':
44 options = [
45 '-c', 'copy', '-map', '0', '-map', '1',
46 '-metadata:s:v', 'title="Album cover"', '-metadata:s:v', 'comment="Cover (Front)"']
47
48 self._downloader.to_screen('[ffmpeg] Adding thumbnail to "%s"' % filename)
49
50 self.run_ffmpeg_multiple_files([filename, thumbnail_filename], temp_filename, options)
51
52 if not self._already_have_thumbnail:
53 os.remove(encodeFilename(thumbnail_filename))
54 os.remove(encodeFilename(filename))
55 os.rename(encodeFilename(temp_filename), encodeFilename(filename))
56
57 elif info['ext'] in ['m4a', 'mp4']:
58 if not check_executable('AtomicParsley', ['-v']):
59 raise EmbedThumbnailPPError('AtomicParsley was not found. Please install.')
60
61 cmd = [encodeFilename('AtomicParsley', True),
62 encodeFilename(filename, True),
63 encodeArgument('--artwork'),
64 encodeFilename(thumbnail_filename, True),
65 encodeArgument('-o'),
66 encodeFilename(temp_filename, True)]
67
68 self._downloader.to_screen('[atomicparsley] Adding thumbnail to "%s"' % filename)
69
70 if self._downloader.params.get('verbose', False):
71 self._downloader.to_screen('[debug] AtomicParsley command line: %s' % shell_quote(cmd))
72
73 p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
74 stdout, stderr = p.communicate()
75
76 if p.returncode != 0:
77 msg = stderr.decode('utf-8', 'replace').strip()
78 raise EmbedThumbnailPPError(msg)
79
80 if not self._already_have_thumbnail:
81 os.remove(encodeFilename(thumbnail_filename))
82 # for formats that don't support thumbnails (like 3gp) AtomicParsley
83 # won't create to the temporary file
84 if b'No changes' in stdout:
85 self._downloader.report_warning('The file format doesn\'t support embedding a thumbnail')
86 else:
87 os.remove(encodeFilename(filename))
88 os.rename(encodeFilename(temp_filename), encodeFilename(filename))
89 else:
90 raise EmbedThumbnailPPError('Only mp3 and m4a/mp4 are supported for thumbnail embedding for now.')
91
92 return [], info