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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 info['ext'] == 'mp3':
39 options = [
40 '-c', 'copy', '-map', '0', '-map', '1',
41 '-metadata:s:v', 'title="Album cover"', '-metadata:s:v', 'comment="Cover (Front)"']
42
43 self._downloader.to_screen('[ffmpeg] Adding thumbnail to "%s"' % filename)
44
45 self.run_ffmpeg_multiple_files([filename, thumbnail_filename], temp_filename, options)
46
47 if not self._already_have_thumbnail:
48 os.remove(encodeFilename(thumbnail_filename))
49 os.remove(encodeFilename(filename))
50 os.rename(encodeFilename(temp_filename), encodeFilename(filename))
51
52 elif info['ext'] == 'm4a':
53 if not check_executable('AtomicParsley', ['-v']):
54 raise EmbedThumbnailPPError('AtomicParsley was not found. Please install.')
55
56 cmd = [encodeFilename('AtomicParsley', True),
57 encodeFilename(filename, True),
58 encodeArgument('--artwork'),
59 encodeFilename(thumbnail_filename, True),
60 encodeArgument('-o'),
61 encodeFilename(temp_filename, True)]
62
63 self._downloader.to_screen('[atomicparsley] Adding thumbnail to "%s"' % filename)
64
65 if self._downloader.params.get('verbose', False):
66 self._downloader.to_screen('[debug] AtomicParsley command line: %s' % shell_quote(cmd))
67
68 p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
69 stdout, stderr = p.communicate()
70
71 if p.returncode != 0:
72 msg = stderr.decode('utf-8', 'replace').strip()
73 raise EmbedThumbnailPPError(msg)
74
75 if not self._already_have_thumbnail:
76 os.remove(encodeFilename(thumbnail_filename))
77 # for formats that don't support thumbnails (like 3gp) AtomicParsley
78 # won't create to the temporary file
79 if b'No changes' in stdout:
80 self._downloader.report_warning('The file format doesn\'t support embedding a thumbnail')
81 else:
82 os.remove(encodeFilename(filename))
83 os.rename(encodeFilename(temp_filename), encodeFilename(filename))
84 else:
85 raise EmbedThumbnailPPError('Only mp3 and m4a are supported for thumbnail embedding for now.')
86
87 return [], info