youtube_dl/postprocessor/atomicparsley.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 AtomicParsleyPPError(PostProcessingError):
  22     pass
  23
  24
  25 class AtomicParsleyPP(PostProcessor):
  26     def run(self, info):
  27         if not check_executable('AtomicParsley', ['-v']):
  28             raise AtomicParsleyPPError('AtomicParsley was not found. Please install.')
  29
  30         filename = info['filepath']
  31         temp_filename = prepend_extension(filename, 'temp')
  32         temp_thumbnail = prepend_extension(filename, 'thumb')
  33
  34         if not info.get('thumbnail'):
  35             raise AtomicParsleyPPError('Thumbnail was not found. Nothing to do.')
  36
  37         compat_urlretrieve(info['thumbnail'], temp_thumbnail)
  38
  39         cmd = ['AtomicParsley', filename, '--artwork', temp_thumbnail, '-o', temp_filename]
  40
  41         self._downloader.to_screen('[atomicparsley] Adding thumbnail to "%s"' % filename)
  42
  43         if self._downloader.params.get('verbose', False):
  44             self._downloader.to_screen('[debug] AtomicParsley command line: %s' % shell_quote(cmd))
  45
  46         p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  47         stdout, stderr = p.communicate()
  48
  49         if p.returncode != 0:
  50             msg = stderr.decode('utf-8', 'replace').strip()
  51             raise AtomicParsleyPPError(msg)
  52
  53         os.remove(encodeFilename(temp_thumbnail))
  54         # for formats that don't support thumbnails (like 3gp) AtomicParsley
  55         # won't create to the temporary file
  56         if b'No changes' in stdout:
  57             self._downloader.report_warning('The file format doesn\'t support embedding a thumbnail')
  58         else:
  59             os.remove(encodeFilename(filename))
  60             os.rename(encodeFilename(temp_filename), encodeFilename(filename))
  61
  62         return True, info