_ Git - youtube-dl/blob - 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 ..compat import (
  11     compat_urlretrieve,
  12 )
  13 from ..utils import (
  14     determine_ext,
  15     check_executable,
  16     encodeFilename,
  17     PostProcessingError,
  18     prepend_extension,
  19     shell_quote
  20 )
  21
  22
  23 class EmbedThumbnailPPError(PostProcessingError):
  24     pass
  25
  26
  27 class EmbedThumbnailPP(FFmpegPostProcessor):
  28     def run(self, info):
  29         filename = info['filepath']
  30         temp_filename = prepend_extension(filename, 'temp')
  31         temp_thumbnail = filename + '.' + determine_ext(info['thumbnail'])
  32
  33         if not info.get('thumbnail'):
  34             raise EmbedThumbnailPPError('Thumbnail was not found. Nothing to do.')
  35
  36         compat_urlretrieve(info['thumbnail'], temp_thumbnail)
  37
  38         if info['ext'] == 'mp3':
  39             options = [
  40                 '-i', temp_thumbnail, '-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(filename, temp_filename, options)
  46
  47             os.remove(encodeFilename(temp_thumbnail))
  48             os.remove(encodeFilename(filename))
  49             os.rename(encodeFilename(temp_filename), encodeFilename(filename))
  50
  51         elif info['ext'] == 'm4a':
  52             if not check_executable('AtomicParsley', ['-v']):
  53                 raise EmbedThumbnailPPError('AtomicParsley was not found. Please install.')
  54
  55             cmd = ['AtomicParsley', filename, '--artwork', temp_thumbnail, '-o', temp_filename]
  56
  57             self._downloader.to_screen('[atomicparsley] Adding thumbnail to "%s"' % filename)
  58
  59             if self._downloader.params.get('verbose', False):
  60                 self._downloader.to_screen('[debug] AtomicParsley command line: %s' % shell_quote(cmd))
  61
  62             p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  63             stdout, stderr = p.communicate()
  64
  65             if p.returncode != 0:
  66                 msg = stderr.decode('utf-8', 'replace').strip()
  67                 raise EmbedThumbnailPPError(msg)
  68
  69             os.remove(encodeFilename(temp_thumbnail))
  70             # for formats that don't support thumbnails (like 3gp) AtomicParsley
  71             # won't create to the temporary file
  72             if b'No changes' in stdout:
  73                 self._downloader.report_warning('The file format doesn\'t support embedding a thumbnail')
  74             else:
  75                 os.remove(encodeFilename(filename))
  76                 os.rename(encodeFilename(temp_filename), encodeFilename(filename))
  77         else:
  78             raise EmbedThumbnailPPError('Only mp3 and m4a are supported for thumbnail embedding for now.')
  79
  80         return [], info