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Split video by chapters (#158)

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* New options `--split-chapters` and `--no-split-chapters`
* The output/path of the split files can be given using the key `chapter`
* Additional keys `section_title`, `section_number`, `section_start`, `section_end` are available in the output template
* Alias `--split-tracks` for parity with animelover/youtube-dl
* `--sponskrub-cut` and `--split-chapter` cannot work together

Closes:
https://github.com/blackjack4494/yt-dlc/issues/277
https://github.com/ytdl-org/youtube-dl/issues/28438
https://github.com/ytdl-org/youtube-dl/issues/12907
https://github.com/ytdl-org/youtube-dl/issues/6480
https://github.com/ytdl-org/youtube-dl/pull/25005

Rewritten from the implementation by: femaref and Wattux
https://github.com/Wattux/youtube-dl/tree/split-at-timestamps
https://github.com/ytdl-org/youtube-dl/pull/25005
https://github.com/femaref/youtube-dl/tree/split-track
This commit is contained in:
pukkandan
2021-03-15 04:32:13 +05:30
committed by GitHub
parent a1c5d2ca64
commit 7275535116
6 changed files with 79 additions and 6 deletions
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38
yt_dlp/postprocessor/ffmpeg.py
View File

@ -10,6 +10,7 @@ import json
from .common import AudioConversionError, PostProcessor
from ..compat import compat_str
from ..utils import (
encodeArgument,
encodeFilename,
@ -769,3 +770,40 @@ class FFmpegSubtitlesConvertorPP(FFmpegPostProcessor):
}
return sub_filenames, info
class FFmpegSplitChaptersPP(FFmpegPostProcessor):
def _prepare_filename(self, number, chapter, info):
info = info.copy()
info.update({
'section_number': number,
'section_title': chapter.get('title'),
'section_start': chapter.get('start_time'),
'section_end': chapter.get('end_time'),
})
return self._downloader.prepare_filename(info, 'chapter')
def _ffmpeg_args_for_chapter(self, number, chapter, info):
destination = self._prepare_filename(number, chapter, info)
if not self._downloader._ensure_dir_exists(encodeFilename(destination)):
return
chapter['_filename'] = destination
self.to_screen('Chapter %03d; Destination: %s' % (number, destination))
return (
destination,
['-ss', compat_str(chapter['start_time']),
'-to', compat_str(chapter['end_time'])])
def run(self, info):
chapters = info.get('chapters') or []
if not chapters:
self.report_warning('There are no tracks to extract')
return [], info
self.to_screen('Splitting video by chapters; %d chapters found' % len(chapters))
for idx, chapter in enumerate(chapters):
destination, opts = self._ffmpeg_args_for_chapter(idx + 1, chapter, info)
self.real_run_ffmpeg([(info['filepath'], opts)], [(destination, ['-c', 'copy'])])
return [], info