-x, --extract-audio Convert video files to audio-only files (requires ffmpeg and ffprobe) --audio-format FORMAT Format to convert the audio to when -x is used. (currently supported: best (default), aac, alac, flac, m4a, mp3, opus, vorbis, wav). You can specify multiple rules using similar syntax as --remux-video --audio-quality QUALITY Specify ffmpeg audio quality to use when converting the audio with -x. Insert a value between 0 (best) and 10 (worst) for VBR or a specific bitrate like 128K (default 5) --remux-video FORMAT Remux the video into another container if necessary (currently supported: avi, flv, gif, mkv, mov, mp4, webm, aac, aiff, alac, flac, m4a, mka, mp3, ogg, opus, vorbis, wav). If target container does not support the video/audio codec, remuxing will fail. You can specify multiple rules; e.g. "aac>m4a/mov>mp4/mkv" will remux aac to m4a, mov to mp4 and anything else to mkv --recode-video FORMAT Re-encode the video into another format if necessary. The syntax and supported formats are the same as --remux-video --postprocessor-args NAME:ARGS 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 PP are: Merger, ModifyChapters, SplitChapters, ExtractAudio, VideoRemuxer, VideoConvertor, Metadata, EmbedSubtitle, EmbedThumbnail, SubtitlesConvertor, ThumbnailsConvertor, FixupStretched, FixupM4a, FixupM3u8, FixupTimestamp and FixupDuration. The supported executables are: AtomicParsley, FFmpeg and FFprobe. 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, e.g. --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 after post-processing --no-keep-video Delete the intermediate video file after post-processing (default) --post-overwrites Overwrite post-processed files (default) --no-post-overwrites Do not overwrite post-processed files --embed-subs Embed subtitles in the video (only for mp4, webm and mkv videos) --no-embed-subs Do not embed subtitles (default) --embed-thumbnail Embed thumbnail in the video as cover art --no-embed-thumbnail Do not embed thumbnail (default) --embed-metadata Embed metadata to the video file. Also embeds chapters/infojson if present unless --no-embed-chapters/--no-embed-info-json are used (Alias: --add-metadata) --no-embed-metadata Do not add metadata to file (default) (Alias: --no-add-metadata) --embed-chapters Add chapter markers to the video file (Alias: --add-chapters) --no-embed-chapters Do not add chapter markers (default) (Alias: --no-add-chapters) --embed-info-json Embed the infojson as an attachment to mkv/mka video files --no-embed-info-json Do not embed the infojson as an attachment to the video file --parse-metadata FROM:TO Parse additional metadata like title/artist from other fields; see "MODIFYING METADATA" for details --replace-in-metadata FIELDS REGEX REPLACE Replace text in a metadata field using the given regex. This option can be used multiple times --xattrs Write metadata to the video file's xattrs (using dublin core and xdg standards) --concat-playlist POLICY Concatenate videos in a playlist. One of "never", "always", or "multi_video" (default; only when the videos form a single show). All the video files must have same codecs and number of streams to be concatable. The "pl_video:" prefix can be used with "--paths" and "--output" to set the output filename for the concatenated files. See "OUTPUT TEMPLATE" for details --fixup POLICY Automatically correct known faults of the file. One of never (do nothing), warn (only emit a warning), detect_or_warn (the default; fix file if we can, warn otherwise), force (try fixing even if file already exists) --ffmpeg-location PATH Location of the ffmpeg binary; either the path to the binary or its containing directory --exec [WHEN:]CMD Execute a command, optionally prefixed with when to execute it (after_move if unspecified), separated by a ":". Supported values of "WHEN" are the same as that of --use-postprocessor. Same syntax as the output template can be used to pass any field as arguments to the command. After download, an additional field "filepath" that contains the final path of the downloaded file is also available, and if no fields are passed, %(filepath)q is appended to the end of the command. This option can be used multiple times --no-exec Remove any previously defined --exec --convert-subs FORMAT Convert the subtitles to another format (currently supported: ass, lrc, srt, vtt) (Alias: --convert-subtitles) --convert-thumbnails FORMAT Convert the thumbnails to another format (currently supported: jpg, png, webp). You can specify multiple rules using similar syntax as --remux-video --split-chapters Split video into multiple files based on internal chapters. The "chapter:" prefix can be used with "--paths" and "--output" to set the output filename for the split files. See "OUTPUT TEMPLATE" for details --no-split-chapters Do not split video based on chapters (default) --remove-chapters REGEX Remove chapters whose title matches the given regular expression. The syntax is the same as --download-sections. This option can be used multiple times --no-remove-chapters Do not remove any chapters from the file (default) --force-keyframes-at-cuts Force keyframes at cuts when downloading/splitting/removing sections. This is slow due to needing a re-encode, but the resulting video may have fewer artifacts around the cuts --no-force-keyframes-at-cuts Do not force keyframes around the chapters when cutting/splitting (default) --use-postprocessor NAME[:ARGS] The (case sensitive) name of plugin postprocessors to be enabled, and (optionally) arguments to be passed to it, separated by a colon ":". ARGS are a semicolon ";" delimited list of NAME=VALUE. The "when" argument determines when the postprocessor is invoked. It can be one of "pre_process" (after video extraction), "after_filter" (after video passes filter), "before_dl" (before each video download), "post_process" (after each video download; default), "after_move" (after moving video file to it's final locations), "after_video" (after downloading and processing all formats of a video), or "playlist" (at end of playlist). This option can be used multiple times to add different postprocessors

                                    import json import yt_dlp URL = 'https://www.youtube.com/watch?v=BaW_jenozKc' # ℹ️ See help(yt_dlp.YoutubeDL) for a list of available options and public functions ydl_opts = {} with yt_dlp.YoutubeDL(ydl_opts) as ydl: info = ydl.extract_info(URL, download=False) # ℹ️ ydl.sanitize_info makes the info json-serializable print(json.dumps(ydl.sanitize_info(info)))
import yt_dlp INFO_FILE = 'path/to/video.info.json' with yt_dlp.YoutubeDL() as ydl: error_code = ydl.download_with_info_file(INFO_FILE) print('Some videos failed to download' if error_code else 'All videos successfully downloaded')
import yt_dlp URLS = ['https://www.youtube.com/watch?v=BaW_jenozKc'] ydl_opts = { 'format': 'm4a/bestaudio/best', # ℹ️ See help(yt_dlp.postprocessor) for a list of available Postprocessors and their arguments 'postprocessors': [{ # Extract audio using ffmpeg 'key': 'FFmpegExtractAudio', 'preferredcodec': 'm4a', }] } with yt_dlp.YoutubeDL(ydl_opts) as ydl: error_code = ydl.download(URLS)
import yt_dlp URLS = ['https://www.youtube.com/watch?v=BaW_jenozKc'] def longer_than_a_minute(info, *, incomplete): """Download only videos longer than a minute (or with unknown duration)""" duration = info.get('duration') if duration and duration < 60: return 'The video is too short' ydl_opts = { 'match_filter': longer_than_a_minute, } with yt_dlp.YoutubeDL(ydl_opts) as ydl: error_code = ydl.download(URLS)
import yt_dlp URLS = ['https://www.youtube.com/watch?v=BaW_jenozKc'] class MyLogger: def debug(self, msg): # For compatibility with youtube-dl, both debug and info are passed into debug # You can distinguish them by the prefix '[debug] ' if msg.startswith('[debug] '): pass else: self.info(msg) def info(self, msg): pass def warning(self, msg): pass def error(self, msg): print(msg) # ℹ️ See "progress_hooks" in help(yt_dlp.YoutubeDL) def my_hook(d): if d['status'] == 'finished': print('Done downloading, now post-processing ...') ydl_opts = { 'logger': MyLogger(), 'progress_hooks': [my_hook], } with yt_dlp.YoutubeDL(ydl_opts) as ydl: ydl.download(URLS)
import yt_dlp URLS = ['https://www.youtube.com/watch?v=BaW_jenozKc'] # ℹ️ See help(yt_dlp.postprocessor.PostProcessor) class MyCustomPP(yt_dlp.postprocessor.PostProcessor): def run(self, info): self.to_screen('Doing stuff') return [], info with yt_dlp.YoutubeDL() as ydl: # ℹ️ "when" can take any value in yt_dlp.utils.POSTPROCESS_WHEN ydl.add_post_processor(MyCustomPP(), when='pre_process') ydl.download(URLS)
import yt_dlp URL = ['https://www.youtube.com/watch?v=BaW_jenozKc'] def format_selector(ctx): """ Select the best video and the best audio that won't result in an mkv. NOTE: This is just an example and does not handle all cases """ # formats are already sorted worst to best formats = ctx.get('formats')[::-1] # acodec='none' means there is no audio best_video = next(f for f in formats if f['vcodec'] != 'none' and f['acodec'] == 'none') # find compatible audio extension audio_ext = {'mp4': 'm4a', 'webm': 'webm'}[best_video['ext']] # vcodec='none' means there is no video best_audio = next(f for f in formats if ( f['acodec'] != 'none' and f['vcodec'] == 'none' and f['ext'] == audio_ext)) # These are the minimum required fields for a merged format yield { 'format_id': f'{best_video["format_id"]}+{best_audio["format_id"]}', 'ext': best_video['ext'], 'requested_formats': [best_video, best_audio], # Must be + separated list of protocols 'protocol': f'{best_video["protocol"]}+{best_audio["protocol"]}' } ydl_opts = { 'format': format_selector, } with yt_dlp.YoutubeDL(ydl_opts) as ydl: ydl.download(URLS)

                                    # Download and merge the best video-only format and the best audio-only format, # or download the best combined format if video-only format is not available $ yt-dlp -f "bv+ba/b" # Download best format that contains video, # and if it doesn't already have an audio stream, merge it with best audio-only format $ yt-dlp -f "bv*+ba/b" # Same as above $ yt-dlp # Download the best video-only format and the best audio-only format without merging them # For this case, an output template should be used since # by default, bestvideo and bestaudio will have the same file name. $ yt-dlp -f "bv,ba" -o "%(title)s.f%(format_id)s.%(ext)s" # Download and merge the best format that has a video stream, # and all audio-only formats into one file $ yt-dlp -f "bv*+mergeall[vcodec=none]" --audio-multistreams # Download and merge the best format that has a video stream, # and the best 2 audio-only formats into one file $ yt-dlp -f "bv*+ba+ba.2" --audio-multistreams # The following examples show the old method (without -S) of format selection # and how to use -S to achieve a similar but (generally) better result # Download the worst video available (old method) $ yt-dlp -f "wv*+wa/w" # Download the best video available but with the smallest resolution $ yt-dlp -S "+res" # Download the smallest video available $ yt-dlp -S "+size,+br" # Download the best mp4 video available, or the best video if no mp4 available $ yt-dlp -f "bv*[ext=mp4]+ba[ext=m4a]/b[ext=mp4] / bv*+ba/b" # Download the best video with the best extension # (For video, mp4 > mov > webm > flv. For audio, m4a > aac > mp3 ...) $ yt-dlp -S "ext" # Download the best video available but no better than 480p, # or the worst video if there is no video under 480p $ yt-dlp -f "bv*[height<=480]+ba/b[height<=480] / wv*+ba/w" # Download the best video available with the largest height but no better than 480p, # or the best video with the smallest resolution if there is no video under 480p $ yt-dlp -S "height:480" # Download the best video available with the largest resolution but no better than 480p, # or the best video with the smallest resolution if there is no video under 480p # Resolution is determined by using the smallest dimension. # So this works correctly for vertical videos as well $ yt-dlp -S "res:480" # Download the best video (that also has audio) but no bigger than 50 MB, # or the worst video (that also has audio) if there is no video under 50 MB $ yt-dlp -f "b[filesize<50M] / w" # Download largest video (that also has audio) but no bigger than 50 MB, # or the smallest video (that also has audio) if there is no video under 50 MB $ yt-dlp -f "b" -S "filesize:50M" # Download best video (that also has audio) that is closest in size to 50 MB $ yt-dlp -f "b" -S "filesize~50M" # Download best video available via direct link over HTTP/HTTPS protocol, # or the best video available via any protocol if there is no such video $ yt-dlp -f "(bv*+ba/b)[protocol^=http][protocol!*=dash] / (bv*+ba/b)" # Download best video available via the best protocol # (https/ftps > http/ftp > m3u8_native > m3u8 > http_dash_segments ...) $ yt-dlp -S "proto" # Download the best video with either h264 or h265 codec, # or the best video if there is no such video $ yt-dlp -f "(bv*[vcodec~='^((he|a)vc|h26[45])']+ba) / (bv*+ba/b)" # Download the best video with best codec no better than h264, # or the best video with worst codec if there is no such video $ yt-dlp -S "codec:h264" # Download the best video with worst codec no worse than h264, # or the best video with best codec if there is no such video $ yt-dlp -S "+codec:h264" # More complex examples # Download the best video no better than 720p preferring framerate greater than 30, # or the worst video (still preferring framerate greater than 30) if there is no such video $ yt-dlp -f "((bv*[fps>30]/bv*)[height<=720]/(wv*[fps>30]/wv*)) + ba / (b[fps>30]/b)[height<=720]/(w[fps>30]/w)" # Download the video with the largest resolution no better than 720p, # or the video with the smallest resolution available if there is no such video, # preferring larger framerate for formats with the same resolution $ yt-dlp -S "res:720,fps" # Download the video with smallest resolution no worse than 480p, # or the video with the largest resolution available if there is no such video, # preferring better codec and then larger total bitrate for the same resolution $ yt-dlp -S "+res:480,codec,br"

from yt_dlp import YoutubeDL

with YoutubeDL() as ydl: 
  info_dict = ydl.extract_info('https://youtu.be/0KFSuoHEYm0', download=False)
  video_url = info_dict.get("url", None)
  video_id = info_dict.get("id", None)
  video_title = info_dict.get('title', None)
  print("Title: " + video_title) # <= Here, you got the video title

#[youtube] 0KFSuoHEYm0: Downloading webpage
#[youtube] 0KFSuoHEYm0: Downloading android player API JSON
#Title: TJ Watt gets his 4th sack of the game vs. Browns

import yt_dlp as youtube_dl
from yt_dlp.utils import DownloadError


url = "https://www.twitch.tv/videos/1410795876"

class loggerOutputs:
    def error(msg):
        print("Captured Error: "+msg)
    def warning(msg):
        print("Captured Warning: "+msg)
    def debug(msg):
        print("Captured Log: "+msg)


options = {
    "quiet": True,
    "format": "bestaudio/worst",
    "logger": loggerOutputs,
}

with youtube_dl.YoutubeDL(options) as ydl:
    try:
        info = ydl.extract_info(url, download=False)
    except DownloadError:
        print("An exception has been caught")
 

from subprocess import Popen, PIPE, DEVNULL
import threading
import time

COPY_BUFSIZE = 65424

playlist = [
    {
        # 15 second video
        "url": "https://youtube.com/watch?v=QiInzFHIDp4"
    },
    {
        # 15 second video
        "url": "https://youtube.com/watch?v=QiInzFHIDp4"
    },
    {
        # 15 second video
        "url": "https://youtube.com/watch?v=QiInzFHIDp4"
    },
]



# Writer thread (read from yt-dlp and write to FFmpeg in chunks of COPY_BUFSIZE bytes).
def writer(yt_dlp_proc, encoder_proc):
    while True:
        yt_dlp_buf = yt_dlp_proc.stdout.read(COPY_BUFSIZE)
        print("READ: yt_dlp")
        if not yt_dlp_buf:
            print("yt-dlp buffer empty")
            break

        written = encoder_proc.stdin.write(yt_dlp_buf)
        print("WRITE: encoder. Bytes: " + str(written))
    
    encoder_proc.stdin.close()  # Close stdin pipe (closing stdin "pushes" the remaining data to stdout).
    encoder_proc.wait()  # Wait for sub-process finish execution.


if __name__ == "__main__":
    rtmp_url = "rtmp://127.0.0.1/live/H1P_x5WPF"

    ffplay_cmd = ['ffplay', '-listen', '1', '-i', rtmp_url] # Start the TCP server first, before the sending client.    
    ffplay_process = Popen(ffplay_cmd, stderr=DEVNULL)  # Use FFplay sub-process for receiving the RTMP video.

    stream_cmd = [
        "ffmpeg", "-loglevel", "error",
        "-hide_banner", "-re", "-i", "-",
        "-c:v", "libx264",
        "-f", "flv",
        "-b:v", "3000k", "-minrate", "3000k",
        "-maxrate", "3000k", "-bufsize", "3000k",
        "-r", "25", "-pix_fmt", "yuv420p",
        rtmp_url #"rtmp://127.0.0.1/live/H1P_x5WPF"
    ]
    print(f'Stream command:\n"{" ".join(stream_cmd)}"')

    encoder_cmd = [
        "ffmpeg", "-re", "-i", "-", "-f", "mpegts",
        "-c", "copy", "-"
    ]
    print(f'Encoder command:\n"{" ".join(encoder_cmd)}"')

    stream_p = Popen(stream_cmd, stdin=PIPE, stderr=DEVNULL)

    for video in playlist:
        yt_dlp_cmd = [
            "yt-dlp", "-q",
            video["url"],
            "-o", "-"
        ]

        print("Now playing: " + video["url"])

        with Popen(yt_dlp_cmd, stdout=PIPE) as yt_dlp_p:
            with Popen(encoder_cmd, stdin=PIPE, stdout=PIPE, stderr=DEVNULL) as encoder_p:

                thread = threading.Thread(target=writer, args=(yt_dlp_p, encoder_p))
                thread.start()  # Start writer thread.

                while True:
                    encoder_buf = encoder_p.stdout.read(COPY_BUFSIZE)

                    if not encoder_buf:
                        print("encoder_buf empty")
                        break

                    print("READ: encoder")

                    stream_bytes_written = stream_p.stdin.write(encoder_buf)
                    print("WRITE: stream, Bytes: " + str(stream_bytes_written))

        thread.join()  # Wait for writer thread to end.
        yt_dlp_p.wait()

    stream_p.stdin.close()  # Close stdin pipe (closing stdin "pushes" the remaining data to stdout).
    stream_p.wait()  # Wait for sub-process finish execution.


    time.sleep(3)  # Wait 3 seconds before closing FFplay
    ffplay_process.kill()  # Forcefully close FFplay sub-process

from pytube import YouTube
from subprocess import Popen, run, PIPE, DEVNULL
import time

playlist = [
    {
        # 15 second video
        "url": "https://youtube.com/watch?v=QiInzFHIDp4"
    },
    {
        # 15 second video
        "url": "https://youtube.com/watch?v=QiInzFHIDp4"
    },
    {
        # 15 second video
        "url": "https://youtube.com/watch?v=QiInzFHIDp4"
    },
]

n = len(playlist)

# Build string for concat demuxer https://video.stackexchange.com/a/18256/18277
filter_complex_str = ''
for i in range(n):
    filter_complex_str += f'[{i}:v]setpts=PTS-STARTPTS[v{i}];[{i}:a]asetpts=PTS-STARTPTS[a{i}];'   # "[0:v]setpts=PTS-STARTPTS[v0];[0:a]asetpts=PTS-STARTPTS[a0];[1:v]setpts=PTS-STARTPTS[v1];[1:a]asetpts=PTS-STARTPTS[a1];[2:v]setpts=PTS-STARTPTS[v2];[2:a]asetpts=PTS-STARTPTS[a2]"
for i in range(n):
    filter_complex_str += f'[v{i}][a{i}]'  # ";[v0][a0][v1][a1][v2][a2]"
filter_complex_str += f'concat=n={n}:v=1:a=1[v][a]'

# Get the video stream URL of every YouTube HTTP URL.
# Add -i before each URL (to be used as FFmpeg input).
playlist_url = []
for video in playlist:
    yt = YouTube(video["url"])
    # https://github.com/pytube/pytube/issues/301
    stream_url = yt.streams[0].url  # Get the URL of the video stream
    playlist_url.append('-i')
    playlist_url.append(stream_url)


rtmp_url = "rtmp://127.0.0.1/live/H1P_x5WPF"

ffplay_cmd = ['ffplay', '-listen', '1', '-i', rtmp_url]  # Start the TCP server first, before the sending client.
ffplay_process = Popen(ffplay_cmd, stderr=DEVNULL)  # Use FFplay sub-process for receiving the RTMP video.

stream_cmd = [
    "ffmpeg", "-loglevel", "error",
    "-hide_banner", "-re"] + playlist_url + ["-filter_complex",
    filter_complex_str,  # '[0:v][0:a][1:v][1:a][2:v][2:a]concat=n=3:v=1:a=1[v][a]'
    "-map", "[v]", "-map", "[a]",
    "-c:v", "libx264",
    "-f", "flv",
    "-b:v", "3000k", "-minrate", "3000k",
    "-maxrate", "3000k", "-bufsize", "3000k",
    "-r", "25", "-pix_fmt", "yuv420p",
    rtmp_url]

run(stream_cmd)

time.sleep(60)  # Wait 60 seconds before closing FFplay
ffplay_process.kill()  # Forcefully close FFplay sub-process

'C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe & {yt-dlp https://www.youtube.com/watch?v=jtjnnykvnh4}'

ydl_opts = {
        'ratelimit': 500000
    }

with yt_dlp.YoutubeDL(params=ydl_opts) as ydl:
    ydl.download([link]) 

'ffmpeg_location': './FFMPEG_CONFIG/ffmpeg.exe',

heroku buildpacks:set heroku/python
heroku buildpacks:add --index 1 https://github.com/FFmpeg/FFmpeg.git