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Add option `--convert-thumbnails`

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Closes: https://github.com/yt-dlp/yt-dlp/issues/99 https://github.com/yt-dlp/yt-dlp/issues/102
pull/241/head
pukkandan 4 years ago
parent 56d868dbb7
commit 8fa43c73d8
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GPG Key ID: 0F00D95A001F4698
6 changed files with 124 additions and 60 deletions
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38
README.md
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@ -639,24 +639,24 @@ Then simply run `make`. You can also run `make yt-dlp` instead to compile only t
Specify the postprocessor/executable name
and the arguments separated by a colon ":"
to give the argument to the specified
postprocessor/executable. Supported
postprocessors are: SponSkrub,
ExtractAudio, VideoRemuxer, VideoConvertor,
EmbedSubtitle, Metadata, Merger,
FixupStretched, FixupM4a, FixupM3u8,
SubtitlesConvertor, EmbedThumbnail and
SplitChapters. The supported executables
are: SponSkrub, FFmpeg, FFprobe, and
AtomicParsley. You can also specify
"PP+EXE:ARGS" to give the arguments to the
specified executable only when being used
by the specified postprocessor.
Additionally, for ffmpeg/ffprobe, "_i"/"_o"
can be appended to the prefix optionally
followed by a number to pass the argument
before the specified input/output file. Eg:
--ppa "Merger+ffmpeg_i1:-v quiet". You can
use this option multiple times to give
postprocessor/executable. Supported PP are:
Merger, ExtractAudio, SplitChapters,
Metadata, EmbedSubtitle, EmbedThumbnail,
SubtitlesConvertor, ThumbnailsConvertor,
VideoRemuxer, VideoConvertor, SponSkrub,
FixupStretched, FixupM4a and FixupM3u8. The
supported executables are: AtomicParsley,
FFmpeg, FFprobe, and SponSkrub. You can
also specify "PP+EXE:ARGS" to give the
arguments to the specified executable only
when being used by the specified
postprocessor. Additionally, for
ffmpeg/ffprobe, "_i"/"_o" can be appended
to the prefix optionally followed by a
number to pass the argument before the
specified input/output file. Eg: --ppa
"Merger+ffmpeg_i1:-v quiet". You can use
this option multiple times to give
different arguments to different
postprocessors. (Alias: --ppa)
-k, --keep-video Keep the intermediate video file on disk
@ -697,6 +697,8 @@ Then simply run `make`. You can also run `make yt-dlp` instead to compile only t
--convert-subs FORMAT Convert the subtitles to another format
(currently supported: srt|ass|vtt|lrc)
(Alias: --convert-subtitles)
--convert-thumbnails FORMAT Convert the thumbnails to another format
(currently supported: jpg)
--split-chapters Split video into multiple files based on
internal chapters. The "chapter:" prefix
can be used with "--paths" and "--output"

10
yt_dlp/__init__.py
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@ -230,6 +230,9 @@ def _real_main(argv=None):
if opts.convertsubtitles is not None:
if opts.convertsubtitles not in ('srt', 'vtt', 'ass', 'lrc'):
parser.error('invalid subtitle format specified')
if opts.convertthumbnails is not None:
if opts.convertthumbnails not in ('jpg', ):
parser.error('invalid thumbnail format specified')
if opts.date is not None:
date = DateRange.day(opts.date)
@ -332,6 +335,13 @@ def _real_main(argv=None):
# Run this before the actual video download
'when': 'before_dl'
})
if opts.convertthumbnails:
postprocessors.append({
'key': 'FFmpegThumbnailsConvertor',
'format': opts.convertthumbnails,
# Run this before the actual video download
'when': 'before_dl'
})
if opts.extractaudio:
postprocessors.append({
'key': 'FFmpegExtractAudio',

13
yt_dlp/options.py
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@ -1109,10 +1109,11 @@ def parseOpts(overrideArguments=None):
help=(
'Give these arguments to the postprocessors. '
'Specify the postprocessor/executable name and the arguments separated by a colon ":" '
'to give the argument to the specified postprocessor/executable. Supported postprocessors are: '
'SponSkrub, ExtractAudio, VideoRemuxer, VideoConvertor, EmbedSubtitle, Metadata, Merger, '
'FixupStretched, FixupM4a, FixupM3u8, SubtitlesConvertor, EmbedThumbnail and SplitChapters. '
'The supported executables are: SponSkrub, FFmpeg, FFprobe, and AtomicParsley. '
'to give the argument to the specified postprocessor/executable. Supported PP are: '
'Merger, ExtractAudio, SplitChapters, Metadata, EmbedSubtitle, EmbedThumbnail, '
'SubtitlesConvertor, ThumbnailsConvertor, VideoRemuxer, VideoConvertor, '
'SponSkrub, FixupStretched, FixupM4a and FixupM3u8. '
'The supported executables are: AtomicParsley, FFmpeg, FFprobe, and SponSkrub. '
'You can also specify "PP+EXE:ARGS" to give the arguments to the specified executable '
'only when being used by the specified postprocessor. Additionally, for ffmpeg/ffprobe, '
'"_i"/"_o" can be appended to the prefix optionally followed by a number to pass the argument '
@ -1204,6 +1205,10 @@ def parseOpts(overrideArguments=None):
'--convert-subs', '--convert-sub', '--convert-subtitles',
metavar='FORMAT', dest='convertsubtitles', default=None,
help='Convert the subtitles to another format (currently supported: srt|ass|vtt|lrc) (Alias: --convert-subtitles)')
postproc.add_option(
'--convert-thumbnails',
metavar='FORMAT', dest='convertthumbnails', default=None,
help='Convert the thumbnails to another format (currently supported: jpg)')
postproc.add_option(
'--split-chapters', '--split-tracks',
dest='split_chapters', action='store_true', default=False,

2
yt_dlp/postprocessor/__init__.py
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@ -13,6 +13,7 @@ from .ffmpeg import (
FFmpegVideoConvertorPP,
FFmpegVideoRemuxerPP,
FFmpegSubtitlesConvertorPP,
FFmpegThumbnailsConvertorPP,
FFmpegSplitChaptersPP,
)
from .xattrpp import XAttrMetadataPP
@ -40,6 +41,7 @@ __all__ = [
'FFmpegMetadataPP',
'FFmpegPostProcessor',
'FFmpegSubtitlesConvertorPP',
'FFmpegThumbnailsConvertorPP',
'FFmpegVideoConvertorPP',
'FFmpegVideoRemuxerPP',
'MetadataFromFieldPP',

51
yt_dlp/postprocessor/embedthumbnail.py
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@ -13,8 +13,10 @@ try:
except ImportError:
has_mutagen = False
from .ffmpeg import FFmpegPostProcessor
from .ffmpeg import (
FFmpegPostProcessor,
FFmpegThumbnailsConvertorPP,
)
from ..utils import (
check_executable,
encodeArgument,
@ -23,7 +25,6 @@ from ..utils import (
PostProcessingError,
prepend_extension,
process_communicate_or_kill,
replace_extension,
shell_quote,
)
@ -35,7 +36,7 @@ class EmbedThumbnailPPError(PostProcessingError):
class EmbedThumbnailPP(FFmpegPostProcessor):
def __init__(self, downloader=None, already_have_thumbnail=False):
super(EmbedThumbnailPP, self).__init__(downloader)
FFmpegPostProcessor.__init__(self, downloader)
self._already_have_thumbnail = already_have_thumbnail
def run(self, info):
@ -46,44 +47,21 @@ class EmbedThumbnailPP(FFmpegPostProcessor):
self.to_screen('There aren\'t any thumbnails to embed')
return [], info
initial_thumbnail = original_thumbnail = thumbnail_filename = info['thumbnails'][-1]['filepath']
thumbnail_filename = info['thumbnails'][-1]['filepath']
if not os.path.exists(encodeFilename(thumbnail_filename)):
self.report_warning('Skipping embedding the thumbnail because the file is missing.')
return [], info
def is_webp(path):
with open(encodeFilename(path), 'rb') as f:
b = f.read(12)
return b[0:4] == b'RIFF' and b[8:] == b'WEBP'
# Correct extension for WebP file with wrong extension (see #25687, #25717)
_, thumbnail_ext = os.path.splitext(thumbnail_filename)
if thumbnail_ext:
thumbnail_ext = thumbnail_ext[1:].lower()
if thumbnail_ext != 'webp' and is_webp(thumbnail_filename):
self.to_screen('Correcting extension to webp and escaping path for thumbnail "%s"' % thumbnail_filename)
thumbnail_webp_filename = replace_extension(thumbnail_filename, 'webp')
if os.path.exists(thumbnail_webp_filename):
os.remove(thumbnail_webp_filename)
os.rename(encodeFilename(thumbnail_filename), encodeFilename(thumbnail_webp_filename))
original_thumbnail = thumbnail_filename = thumbnail_webp_filename
thumbnail_ext = 'webp'
convertor = FFmpegThumbnailsConvertorPP(self._downloader)
convertor.fixup_webp(info, -1)
original_thumbnail = thumbnail_filename = info['thumbnails'][-1]['filepath']
# Convert unsupported thumbnail formats to JPEG (see #25687, #25717)
if thumbnail_ext not in ['jpg', 'png']:
# NB: % is supposed to be escaped with %% but this does not work
# for input files so working around with standard substitution
escaped_thumbnail_filename = thumbnail_filename.replace('%', '#')
os.rename(encodeFilename(thumbnail_filename), encodeFilename(escaped_thumbnail_filename))
escaped_thumbnail_jpg_filename = replace_extension(escaped_thumbnail_filename, 'jpg')
self.to_screen('Converting thumbnail "%s" to JPEG' % escaped_thumbnail_filename)
self.run_ffmpeg(escaped_thumbnail_filename, escaped_thumbnail_jpg_filename, ['-bsf:v', 'mjpeg2jpeg'])
thumbnail_jpg_filename = replace_extension(thumbnail_filename, 'jpg')
# Rename back to unescaped for further processing
os.rename(encodeFilename(escaped_thumbnail_filename), encodeFilename(thumbnail_filename))
os.rename(encodeFilename(escaped_thumbnail_jpg_filename), encodeFilename(thumbnail_jpg_filename))
thumbnail_filename = thumbnail_jpg_filename
_, thumbnail_ext = os.path.splitext(thumbnail_filename)
if thumbnail_ext not in ('jpg', 'png'):
thumbnail_filename = convertor.convert_thumbnail(thumbnail_filename, 'jpg')
thumbnail_ext = 'jpg'
mtime = os.stat(encodeFilename(filename)).st_mtime
@ -194,9 +172,6 @@ class EmbedThumbnailPP(FFmpegPostProcessor):
files_to_delete = [thumbnail_filename]
if self._already_have_thumbnail:
info['__files_to_move'][original_thumbnail] = replace_extension(
info['__files_to_move'][initial_thumbnail],
os.path.splitext(original_thumbnail)[1][1:])
if original_thumbnail == thumbnail_filename:
files_to_delete = []
elif original_thumbnail != thumbnail_filename:

70
yt_dlp/postprocessor/ffmpeg.py
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@ -816,3 +816,73 @@ class FFmpegSplitChaptersPP(FFmpegPostProcessor):
destination, opts = self._ffmpeg_args_for_chapter(idx + 1, chapter, info)
self.real_run_ffmpeg([(info['filepath'], opts)], [(destination, ['-c', 'copy'])])
return [], info
class FFmpegThumbnailsConvertorPP(FFmpegPostProcessor):
def __init__(self, downloader=None, format=None):
super(FFmpegThumbnailsConvertorPP, self).__init__(downloader)
self.format = format
@staticmethod
def is_webp(path):
with open(encodeFilename(path), 'rb') as f:
b = f.read(12)
return b[0:4] == b'RIFF' and b[8:] == b'WEBP'
def fixup_webp(self, info, idx=-1):
thumbnail_filename = info['thumbnails'][idx]['filepath']
_, thumbnail_ext = os.path.splitext(thumbnail_filename)
if thumbnail_ext:
thumbnail_ext = thumbnail_ext[1:].lower()
if thumbnail_ext != 'webp' and self.is_webp(thumbnail_filename):
self.to_screen('Correcting thumbnail "%s" extension to webp' % thumbnail_filename)
webp_filename = replace_extension(thumbnail_filename, 'webp')
if os.path.exists(webp_filename):
os.remove(webp_filename)
os.rename(encodeFilename(thumbnail_filename), encodeFilename(webp_filename))
info['thumbnails'][idx]['filepath'] = webp_filename
info['__files_to_move'][webp_filename] = replace_extension(
info['__files_to_move'].pop(thumbnail_filename), 'webp')
def convert_thumbnail(self, thumbnail_filename, ext):
if ext != 'jpg':
raise FFmpegPostProcessorError('Only conversion to jpg is currently supported')
# NB: % is supposed to be escaped with %% but this does not work
# for input files so working around with standard substitution
escaped_thumbnail_filename = thumbnail_filename.replace('%', '#')
os.rename(encodeFilename(thumbnail_filename), encodeFilename(escaped_thumbnail_filename))
escaped_thumbnail_jpg_filename = replace_extension(escaped_thumbnail_filename, 'jpg')
self.to_screen('Converting thumbnail "%s" to JPEG' % escaped_thumbnail_filename)
self.run_ffmpeg(escaped_thumbnail_filename, escaped_thumbnail_jpg_filename, ['-bsf:v', 'mjpeg2jpeg'])
thumbnail_jpg_filename = replace_extension(thumbnail_filename, 'jpg')
# Rename back to unescaped
os.rename(encodeFilename(escaped_thumbnail_filename), encodeFilename(thumbnail_filename))
os.rename(encodeFilename(escaped_thumbnail_jpg_filename), encodeFilename(thumbnail_jpg_filename))
return thumbnail_jpg_filename
def run(self, info):
if self.format != 'jpg':
raise FFmpegPostProcessorError('Only conversion to jpg is currently supported')
files_to_delete = []
has_thumbnail = False
for idx, thumbnail_dict in enumerate(info['thumbnails']):
if 'filepath' not in thumbnail_dict:
continue
has_thumbnail = True
self.fixup_webp(info, idx)
original_thumbnail = thumbnail_dict['filepath']
_, thumbnail_ext = os.path.splitext(original_thumbnail)
if thumbnail_ext:
thumbnail_ext = thumbnail_ext[1:].lower()
if thumbnail_ext == self.format:
self.to_screen('Thumbnail "%s" is already in the requested format' % original_thumbnail)
continue
thumbnail_dict['filepath'] = self.convert_thumbnail(original_thumbnail, self.format)
files_to_delete.append(original_thumbnail)
info['__files_to_move'][thumbnail_dict['filepath']] = replace_extension(
info['__files_to_move'][original_thumbnail], self.format)
if not has_thumbnail:
self.to_screen('There aren\'t any thumbnails to convert')
return files_to_delete, info

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