_ 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 .common import PostProcessor
   9 from ..compat import (
  10     compat_urlretrieve,
  11 )
  12 from ..utils import (
  13     check_executable,
  14     encodeFilename,
  15     PostProcessingError,
  16     prepend_extension,
  17     shell_quote
  18 )
  19
  20
  21 class EmbedThumbnailPPError(PostProcessingError):
  22     pass
  23
  24
  25 class EmbedThumbnailPP(PostProcessor):
  26     def run(self, info):
  27         filename = info['filepath']
  28         temp_filename = prepend_extension(filename, 'temp')
  29         temp_thumbnail = prepend_extension(filename, 'thumb')
  30
  31         if not info.get('thumbnail'):
  32             raise EmbedThumbnailPPError('Thumbnail was not found. Nothing to do.')
  33
  34         compat_urlretrieve(info['thumbnail'], temp_thumbnail)
  35
  36         if info['ext'] == 'mp3':
  37             if not check_executable('ffmpeg', ['-version']):
  38                 raise AtomicParsleyPPError('FFmpeg was not found. Please install.')
  39
  40             cmd = ['ffmpeg', '-i', filename, '-i', temp_thumbnail, '-c', 'copy', '-map', '0', '-map', '1', '-metadata:s:v', 'title="Album cover"', '-metadata:s:v', 'comment="Cover (Front)"', temp_filename]
  41
  42             self._downloader.to_screen('[ffmpeg] Adding thumbnail to "%s"' % filename)
  43
  44             if self._downloader.params.get('verbose', False):
  45                 self._downloader.to_screen('[debug] FFmpeg command line: %s' % shell_quote(cmd))
  46
  47             p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  48             stdout, stderr = p.communicate()
  49
  50             if p.returncode != 0:
  51                 msg = stderr.decode('utf-8', 'replace').strip()
  52                 raise EmbedThumbnailPPError(msg)
  53
  54             os.remove(encodeFilename(temp_thumbnail))
  55             os.remove(encodeFilename(filename))
  56             os.rename(encodeFilename(temp_filename), encodeFilename(filename))
  57
  58         elif info['ext'] == 'm4a':
  59             if not check_executable('AtomicParsley', ['-v']):
  60                 raise EmbedThumbnailPPError('AtomicParsley was not found. Please install.')
  61
  62             cmd = ['AtomicParsley', filename, '--artwork', temp_thumbnail, '-o', temp_filename]
  63
  64             self._downloader.to_screen('[atomicparsley] Adding thumbnail to "%s"' % filename)
  65
  66             if self._downloader.params.get('verbose', False):
  67                 self._downloader.to_screen('[debug] AtomicParsley command line: %s' % shell_quote(cmd))
  68
  69             p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  70             stdout, stderr = p.communicate()
  71
  72             if p.returncode != 0:
  73                 msg = stderr.decode('utf-8', 'replace').strip()
  74                 raise EmbedThumbnailPPError(msg)
  75
  76             os.remove(encodeFilename(temp_thumbnail))
  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