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# -*- coding: utf-8 -*-
from __future__ import unicode_literals
import os
import subprocess
from .ffmpeg import FFmpegPostProcessor
from ..utils import (
check_executable,
encodeFilename,
PostProcessingError,
prepend_extension,
shell_quote
)
class EmbedThumbnailPPError(PostProcessingError):
pass
class EmbedThumbnailPP(FFmpegPostProcessor):
def __init__(self, downloader=None, already_have_thumbnail=False):
super(EmbedThumbnailPP, self).__init__(downloader)
self._already_have_thumbnail = already_have_thumbnail
def run(self, info):
filename = info['filepath']
temp_filename = prepend_extension(filename, 'temp')
if not info.get('thumbnails'):
raise EmbedThumbnailPPError('Thumbnail was not found. Nothing to do.')
thumbnail_filename = info['thumbnails'][-1]['filename']
if info['ext'] == 'mp3':
options = [
'-c', 'copy', '-map', '0', '-map', '1',
'-metadata:s:v', 'title="Album cover"', '-metadata:s:v', 'comment="Cover (Front)"']
self._downloader.to_screen('[ffmpeg] Adding thumbnail to "%s"' % filename)
self.run_ffmpeg_multiple_files([filename, thumbnail_filename], temp_filename, options)
if not self._already_have_thumbnail:
os.remove(encodeFilename(thumbnail_filename))
os.remove(encodeFilename(filename))
os.rename(encodeFilename(temp_filename), encodeFilename(filename))
elif info['ext'] == 'm4a':
if not check_executable('AtomicParsley', ['-v']):
raise EmbedThumbnailPPError('AtomicParsley was not found. Please install.')
cmd = ['AtomicParsley', filename, '--artwork', thumbnail_filename, '-o', temp_filename]
self._downloader.to_screen('[atomicparsley] Adding thumbnail to "%s"' % filename)
if self._downloader.params.get('verbose', False):
self._downloader.to_screen('[debug] AtomicParsley command line: %s' % shell_quote(cmd))
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = p.communicate()
if p.returncode != 0:
msg = stderr.decode('utf-8', 'replace').strip()
raise EmbedThumbnailPPError(msg)
if not self._already_have_thumbnail:
os.remove(encodeFilename(thumbnail_filename))
# for formats that don't support thumbnails (like 3gp) AtomicParsley
# won't create to the temporary file
if b'No changes' in stdout:
self._downloader.report_warning('The file format doesn\'t support embedding a thumbnail')
else:
os.remove(encodeFilename(filename))
os.rename(encodeFilename(temp_filename), encodeFilename(filename))
else:
raise EmbedThumbnailPPError('Only mp3 and m4a are supported for thumbnail embedding for now.')
return [], info
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