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Format selector mergeall to download and merge all formats
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pukkandan
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2 changed files with 81 additions and 65 deletions
16
README.md
16
README.md
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@ -979,8 +979,9 @@ # FORMAT SELECTION
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You can also use special names to select particular edge case formats:
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- `all`: Select all formats
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- `b*`, `best*`: Select the best quality format irrespective of whether it contains video or audio.
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- `w*`, `worst*`: Select the worst quality format irrespective of whether it contains video or audio.
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- `mergeall`: Select and merge all formats (Must be used with `--audio-multistreams`, `--video-multistreams` or both)
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- `b*`, `best*`: Select the best quality format irrespective of whether it contains video or audio
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- `w*`, `worst*`: Select the worst quality format irrespective of whether it contains video or audio
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- `b`, `best`: Select the best quality format that contains both video and audio. Equivalent to `best*[vcodec!=none][acodec!=none]`
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- `w`, `worst`: Select the worst quality format that contains both video and audio. Equivalent to `worst*[vcodec!=none][acodec!=none]`
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- `bv`, `bestvideo`: Select the best quality video-only format. Equivalent to `best*[acodec=none]`
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@ -1094,10 +1095,17 @@ # For this case, an output template should be used since
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# by default, bestvideo and bestaudio will have the same file name.
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$ yt-dlp -f 'bv,ba' -o '%(title)s.f%(format_id)s.%(ext)s'
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# Download and merge the best format that has a video stream,
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# and all audio-only formats into one file
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$ yt-dlp -f 'bv*+mergeall[vcodec=none]' --audio-multistreams
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# Download and merge the best format that has a video stream,
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# and the best 2 audio-only formats into one file
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$ yt-dlp -f 'bv*+ba+ba.2' --audio-multistreams
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# The following examples show the old method (without -S) of format selection
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# and how to use -S to achieve a similar but better result
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# and how to use -S to achieve a similar but (generally) better result
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# Download the worst video available (old method)
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$ yt-dlp -f 'wv*+wa/w'
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@ -1178,7 +1186,7 @@ # or the worst video (still prefering framerate greater than 30) if there is no
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$ yt-dlp -f '((bv*[fps>30]/bv*)[height<=720]/(wv*[fps>30]/wv*)) + ba / (b[fps>30]/b)[height<=720]/(w[fps>30]/w)'
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# Download the video with the largest resolution no better than 720p,
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# or the video with the smallest resolution available if there is no such video,
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# or the video with the smallest resolution available if there is no such video,
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# prefering larger framerate for formats with the same resolution
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$ yt-dlp -S 'res:720,fps'
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@ -1541,6 +1541,66 @@ def _parse_format_selection(tokens, inside_merge=False, inside_choice=False, ins
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selectors.append(current_selector)
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return selectors
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def _merge(formats_pair):
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format_1, format_2 = formats_pair
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formats_info = []
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formats_info.extend(format_1.get('requested_formats', (format_1,)))
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formats_info.extend(format_2.get('requested_formats', (format_2,)))
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if not allow_multiple_streams['video'] or not allow_multiple_streams['audio']:
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get_no_more = {"video": False, "audio": False}
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for (i, fmt_info) in enumerate(formats_info):
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for aud_vid in ["audio", "video"]:
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if not allow_multiple_streams[aud_vid] and fmt_info.get(aud_vid[0] + 'codec') != 'none':
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if get_no_more[aud_vid]:
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formats_info.pop(i)
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get_no_more[aud_vid] = True
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if len(formats_info) == 1:
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return formats_info[0]
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video_fmts = [fmt_info for fmt_info in formats_info if fmt_info.get('vcodec') != 'none']
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audio_fmts = [fmt_info for fmt_info in formats_info if fmt_info.get('acodec') != 'none']
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the_only_video = video_fmts[0] if len(video_fmts) == 1 else None
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the_only_audio = audio_fmts[0] if len(audio_fmts) == 1 else None
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output_ext = self.params.get('merge_output_format')
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if not output_ext:
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if the_only_video:
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output_ext = the_only_video['ext']
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elif the_only_audio and not video_fmts:
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output_ext = the_only_audio['ext']
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else:
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output_ext = 'mkv'
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new_dict = {
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'requested_formats': formats_info,
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'format': '+'.join(fmt_info.get('format') for fmt_info in formats_info),
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'format_id': '+'.join(fmt_info.get('format_id') for fmt_info in formats_info),
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'ext': output_ext,
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}
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if the_only_video:
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new_dict.update({
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'width': the_only_video.get('width'),
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'height': the_only_video.get('height'),
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'resolution': the_only_video.get('resolution') or self.format_resolution(the_only_video),
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'fps': the_only_video.get('fps'),
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'vcodec': the_only_video.get('vcodec'),
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'vbr': the_only_video.get('vbr'),
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'stretched_ratio': the_only_video.get('stretched_ratio'),
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})
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if the_only_audio:
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new_dict.update({
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'acodec': the_only_audio.get('acodec'),
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'abr': the_only_audio.get('abr'),
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})
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return new_dict
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def _build_selector_function(selector):
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if isinstance(selector, list): # ,
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fs = [_build_selector_function(s) for s in selector]
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@ -1565,14 +1625,22 @@ def selector_function(ctx):
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return []
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elif selector.type == SINGLE: # atom
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format_spec = selector.selector if selector.selector is not None else 'best'
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format_spec = (selector.selector if selector.selector is not None else 'best').lower()
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# TODO: Add allvideo, allaudio etc by generalizing the code with best/worst selector
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if format_spec == 'all':
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def selector_function(ctx):
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formats = list(ctx['formats'])
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if formats:
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for f in formats:
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yield f
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elif format_spec == 'mergeall':
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def selector_function(ctx):
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formats = list(ctx['formats'])
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merged_format = formats[0]
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for f in formats[1:]:
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merged_format = _merge((merged_format, f))
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yield merged_format
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else:
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format_fallback = False
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@ -1618,66 +1686,6 @@ def selector_function(ctx):
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yield formats[format_idx]
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elif selector.type == MERGE: # +
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def _merge(formats_pair):
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format_1, format_2 = formats_pair
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formats_info = []
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formats_info.extend(format_1.get('requested_formats', (format_1,)))
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formats_info.extend(format_2.get('requested_formats', (format_2,)))
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if not allow_multiple_streams['video'] or not allow_multiple_streams['audio']:
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get_no_more = {"video": False, "audio": False}
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for (i, fmt_info) in enumerate(formats_info):
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for aud_vid in ["audio", "video"]:
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if not allow_multiple_streams[aud_vid] and fmt_info.get(aud_vid[0] + 'codec') != 'none':
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if get_no_more[aud_vid]:
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formats_info.pop(i)
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get_no_more[aud_vid] = True
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if len(formats_info) == 1:
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return formats_info[0]
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video_fmts = [fmt_info for fmt_info in formats_info if fmt_info.get('vcodec') != 'none']
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audio_fmts = [fmt_info for fmt_info in formats_info if fmt_info.get('acodec') != 'none']
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the_only_video = video_fmts[0] if len(video_fmts) == 1 else None
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the_only_audio = audio_fmts[0] if len(audio_fmts) == 1 else None
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output_ext = self.params.get('merge_output_format')
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if not output_ext:
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if the_only_video:
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output_ext = the_only_video['ext']
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elif the_only_audio and not video_fmts:
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output_ext = the_only_audio['ext']
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else:
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output_ext = 'mkv'
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new_dict = {
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'requested_formats': formats_info,
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'format': '+'.join(fmt_info.get('format') for fmt_info in formats_info),
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'format_id': '+'.join(fmt_info.get('format_id') for fmt_info in formats_info),
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'ext': output_ext,
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}
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if the_only_video:
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new_dict.update({
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'width': the_only_video.get('width'),
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'height': the_only_video.get('height'),
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'resolution': the_only_video.get('resolution') or self.format_resolution(the_only_video),
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'fps': the_only_video.get('fps'),
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'vcodec': the_only_video.get('vcodec'),
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'vbr': the_only_video.get('vbr'),
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'stretched_ratio': the_only_video.get('stretched_ratio'),
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})
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if the_only_audio:
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new_dict.update({
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'acodec': the_only_audio.get('acodec'),
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'abr': the_only_audio.get('abr'),
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})
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return new_dict
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selector_1, selector_2 = map(_build_selector_function, selector.selector)
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def selector_function(ctx):
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