_ 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     check_executable,
  15     encodeFilename,
  16     PostProcessingError,
  17     prepend_extension,
  18     shell_quote
  19 )
  20
  21
  22 class EmbedThumbnailPPError(PostProcessingError):
  23     pass
  24
  25
  26 class EmbedThumbnailPP(FFmpegPostProcessor):
  27     def run(self, info):
  28         filename = info['filepath']
  29         temp_filename = prepend_extension(filename, 'temp')
  30         temp_thumbnail = prepend_extension(filename, 'thumb')
  31
  32         if not info.get('thumbnail'):
  33             raise EmbedThumbnailPPError('Thumbnail was not found. Nothing to do.')
  34
  35         compat_urlretrieve(info['thumbnail'], temp_thumbnail)
  36
  37         if info['ext'] == 'mp3':
  38             options = [
  39                 '-i', temp_thumbnail, '-c', 'copy', '-map', '0', '-map', '1',
  40                 '-metadata:s:v', 'title="Album cover"', '-metadata:s:v', 'comment="Cover (Front)"']
  41
  42             self._downloader.to_screen('[ffmpeg] Adding thumbnail to "%s"' % filename)
  43
  44             self.run_ffmpeg(filename, temp_filename, options)
  45
  46             os.remove(encodeFilename(temp_thumbnail))
  47             os.remove(encodeFilename(filename))
  48             os.rename(encodeFilename(temp_filename), encodeFilename(filename))
  49
  50         elif info['ext'] == 'm4a':
  51             if not check_executable('AtomicParsley', ['-v']):
  52                 raise EmbedThumbnailPPError('AtomicParsley was not found. Please install.')
  53
  54             cmd = ['AtomicParsley', filename, '--artwork', temp_thumbnail, '-o', temp_filename]
  55
  56             self._downloader.to_screen('[atomicparsley] Adding thumbnail to "%s"' % filename)
  57
  58             if self._downloader.params.get('verbose', False):
  59                 self._downloader.to_screen('[debug] AtomicParsley command line: %s' % shell_quote(cmd))
  60
  61             p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  62             stdout, stderr = p.communicate()
  63
  64             if p.returncode != 0:
  65                 msg = stderr.decode('utf-8', 'replace').strip()
  66                 raise EmbedThumbnailPPError(msg)
  67
  68             os.remove(encodeFilename(temp_thumbnail))
  69             # for formats that don't support thumbnails (like 3gp) AtomicParsley
  70             # won't create to the temporary file
  71             if b'No changes' in stdout:
  72                 self._downloader.report_warning('The file format doesn\'t support embedding a thumbnail')
  73             else:
  74                 os.remove(encodeFilename(filename))
  75                 os.rename(encodeFilename(temp_filename), encodeFilename(filename))
  76         else:
  77             raise EmbedThumbnailPPError('Only mp3 and m4a are supported for thumbnail embedding for now.')
  78
  79         return [], info