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Diffstat (limited to 'yt_dlp/postprocessor/embedthumbnail.py')
| -rw-r--r-- | yt_dlp/postprocessor/embedthumbnail.py | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/yt_dlp/postprocessor/embedthumbnail.py b/yt_dlp/postprocessor/embedthumbnail.py new file mode 100644 index 000000000..3139a6338 --- /dev/null +++ b/yt_dlp/postprocessor/embedthumbnail.py @@ -0,0 +1,235 @@ +# coding: utf-8 +from __future__ import unicode_literals + +import base64 +import imghdr +import os +import subprocess +import re + +try: + from mutagen.flac import Picture, FLAC + from mutagen.mp4 import MP4, MP4Cover + from mutagen.oggopus import OggOpus + from mutagen.oggvorbis import OggVorbis + has_mutagen = True +except ImportError: + has_mutagen = False + +from .common import PostProcessor +from .ffmpeg import ( + FFmpegPostProcessor, + FFmpegThumbnailsConvertorPP, +) +from ..utils import ( + check_executable, + encodeArgument, + encodeFilename, + error_to_compat_str, + PostProcessingError, + prepend_extension, + process_communicate_or_kill, + shell_quote, +) + + +class EmbedThumbnailPPError(PostProcessingError): + pass + + +class EmbedThumbnailPP(FFmpegPostProcessor): + + def __init__(self, downloader=None, already_have_thumbnail=False): + FFmpegPostProcessor.__init__(self, downloader) + self._already_have_thumbnail = already_have_thumbnail + + def _get_thumbnail_resolution(self, filename, thumbnail_dict): + def guess(): + width, height = thumbnail_dict.get('width'), thumbnail_dict.get('height') + if width and height: + return width, height + + try: + size_regex = r',\s*(?P<w>\d+)x(?P<h>\d+)\s*[,\[]' + size_result = self.run_ffmpeg(filename, None, ['-hide_banner'], expected_retcodes=(1,)) + mobj = re.search(size_regex, size_result) + if mobj is None: + return guess() + except PostProcessingError as err: + self.report_warning('unable to find the thumbnail resolution; %s' % error_to_compat_str(err)) + return guess() + return int(mobj.group('w')), int(mobj.group('h')) + + def _report_run(self, exe, filename): + self.to_screen('%s: Adding thumbnail to "%s"' % (exe, filename)) + + @PostProcessor._restrict_to(images=False) + def run(self, info): + filename = info['filepath'] + temp_filename = prepend_extension(filename, 'temp') + + if not info.get('thumbnails'): + self.to_screen('There aren\'t any thumbnails to embed') + return [], info + + idx = next((-i for i, t in enumerate(info['thumbnails'][::-1], 1) if t.get('filepath')), None) + if idx is None: + self.to_screen('There are no thumbnails on disk') + return [], info + thumbnail_filename = info['thumbnails'][idx]['filepath'] + if not os.path.exists(encodeFilename(thumbnail_filename)): + self.report_warning('Skipping embedding the thumbnail because the file is missing.') + return [], info + + # Correct extension for WebP file with wrong extension (see #25687, #25717) + convertor = FFmpegThumbnailsConvertorPP(self._downloader) + convertor.fixup_webp(info, idx) + + original_thumbnail = thumbnail_filename = info['thumbnails'][idx]['filepath'] + + # Convert unsupported thumbnail formats to PNG (see #25687, #25717) + # Original behavior was to convert to JPG, but since JPG is a lossy + # format, there will be some additional data loss. + # PNG, on the other hand, is lossless. + thumbnail_ext = os.path.splitext(thumbnail_filename)[1][1:] + if thumbnail_ext not in ('jpg', 'jpeg', 'png'): + thumbnail_filename = convertor.convert_thumbnail(thumbnail_filename, 'png') + thumbnail_ext = 'png' + + mtime = os.stat(encodeFilename(filename)).st_mtime + + success = True + if info['ext'] == 'mp3': + options = [ + '-c', 'copy', '-map', '0:0', '-map', '1:0', '-id3v2_version', '3', + '-metadata:s:v', 'title="Album cover"', '-metadata:s:v', 'comment="Cover (front)"'] + + self._report_run('ffmpeg', filename) + self.run_ffmpeg_multiple_files([filename, thumbnail_filename], temp_filename, options) + + elif info['ext'] in ['mkv', 'mka']: + options = ['-c', 'copy', '-map', '0', '-dn'] + + mimetype = 'image/%s' % ('png' if thumbnail_ext == 'png' else 'jpeg') + old_stream, new_stream = self.get_stream_number( + filename, ('tags', 'mimetype'), mimetype) + if old_stream is not None: + options.extend(['-map', '-0:%d' % old_stream]) + new_stream -= 1 + options.extend([ + '-attach', thumbnail_filename, + '-metadata:s:%d' % new_stream, 'mimetype=%s' % mimetype, + '-metadata:s:%d' % new_stream, 'filename=cover.%s' % thumbnail_ext]) + + self._report_run('ffmpeg', filename) + self.run_ffmpeg(filename, temp_filename, options) + + elif info['ext'] in ['m4a', 'mp4', 'mov']: + prefer_atomicparsley = 'embed-thumbnail-atomicparsley' in self.get_param('compat_opts', []) + # Method 1: Use mutagen + if not has_mutagen or prefer_atomicparsley: + success = False + else: + try: + self._report_run('mutagen', filename) + meta = MP4(filename) + # NOTE: the 'covr' atom is a non-standard MPEG-4 atom, + # Apple iTunes 'M4A' files include the 'moov.udta.meta.ilst' atom. + f = {'jpeg': MP4Cover.FORMAT_JPEG, 'png': MP4Cover.FORMAT_PNG}[imghdr.what(thumbnail_filename)] + with open(thumbnail_filename, 'rb') as thumbfile: + thumb_data = thumbfile.read() + meta.tags['covr'] = [MP4Cover(data=thumb_data, imageformat=f)] + meta.save() + temp_filename = filename + except Exception as err: + self.report_warning('unable to embed using mutagen; %s' % error_to_compat_str(err)) + success = False + + # Method 2: Use ffmpeg+ffprobe + if not success and not prefer_atomicparsley: + success = True + try: + options = ['-c', 'copy', '-map', '0', '-dn', '-map', '1'] + + old_stream, new_stream = self.get_stream_number( + filename, ('disposition', 'attached_pic'), 1) + if old_stream is not None: + options.extend(['-map', '-0:%d' % old_stream]) + new_stream -= 1 + options.extend(['-disposition:%s' % new_stream, 'attached_pic']) + + self._report_run('ffmpeg', filename) + self.run_ffmpeg_multiple_files([filename, thumbnail_filename], temp_filename, options) + except PostProcessingError as err: + self.report_warning('unable to embed using ffprobe & ffmpeg; %s' % error_to_compat_str(err)) + success = False + + # Method 3: Use AtomicParsley + if not success: + success = True + atomicparsley = next(( + x for x in ['AtomicParsley', 'atomicparsley'] + if check_executable(x, ['-v'])), None) + if atomicparsley is None: + raise EmbedThumbnailPPError('AtomicParsley was not found. Please install') + + cmd = [encodeFilename(atomicparsley, True), + encodeFilename(filename, True), + encodeArgument('--artwork'), + encodeFilename(thumbnail_filename, True), + encodeArgument('-o'), + encodeFilename(temp_filename, True)] + cmd += [encodeArgument(o) for o in self._configuration_args('AtomicParsley')] + + self._report_run('atomicparsley', filename) + self.write_debug('AtomicParsley command line: %s' % shell_quote(cmd)) + p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) + stdout, stderr = process_communicate_or_kill(p) + if p.returncode != 0: + msg = stderr.decode('utf-8', 'replace').strip() + raise EmbedThumbnailPPError(msg) + # for formats that don't support thumbnails (like 3gp) AtomicParsley + # won't create to the temporary file + if b'No changes' in stdout: + self.report_warning('The file format doesn\'t support embedding a thumbnail') + success = False + + elif info['ext'] in ['ogg', 'opus', 'flac']: + if not has_mutagen: + raise EmbedThumbnailPPError('module mutagen was not found. Please install using `python -m pip install mutagen`') + + self._report_run('mutagen', filename) + f = {'opus': OggOpus, 'flac': FLAC, 'ogg': OggVorbis}[info['ext']](filename) + + pic = Picture() + pic.mime = 'image/%s' % imghdr.what(thumbnail_filename) + with open(thumbnail_filename, 'rb') as thumbfile: + pic.data = thumbfile.read() + pic.type = 3 # front cover + res = self._get_thumbnail_resolution(thumbnail_filename, info['thumbnails'][idx]) + if res is not None: + pic.width, pic.height = res + + if info['ext'] == 'flac': + f.add_picture(pic) + else: + # https://wiki.xiph.org/VorbisComment#METADATA_BLOCK_PICTURE + f['METADATA_BLOCK_PICTURE'] = base64.b64encode(pic.write()).decode('ascii') + f.save() + temp_filename = filename + + else: + raise EmbedThumbnailPPError('Supported filetypes for thumbnail embedding are: mp3, mkv/mka, ogg/opus/flac, m4a/mp4/mov') + + if success and temp_filename != filename: + os.replace(temp_filename, filename) + + self.try_utime(filename, mtime, mtime) + + files_to_delete = [thumbnail_filename] + if self._already_have_thumbnail: + if original_thumbnail == thumbnail_filename: + files_to_delete = [] + elif original_thumbnail != thumbnail_filename: + files_to_delete.append(original_thumbnail) + return files_to_delete, info |