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• ffmpeg volumn not work in complex filter

  6 février 2018, par rick lee

  "volumn" filter not work in complex filter.
  the audio that converted volumn is not affected.

  env : Mac OS 10.12.6

  ffmpeg -i /path/bg.mp3 -y -filter_complex [0:0]volume=0[output] -map 
  
  [output] -acodec libmp3lame -write_xing 0 /path/mixed.mp3

  full log =====================================================================

  liqideMacBook-Pro:pinyin-api work$ ffmpeg -i 
  
  /Users/work/dev/codebase/pinyin/pinyin-api/test/resources/bg_audio2.mp3 
  
  -y -filter_complex [0:0]volume=0.1[output] -map [output] -acodec 
  
  libmp3lame -f mp3 -write_xing 0 /Users/work/dev/codebase/pinyin/pinyin-
  
  api/test/resources/mixed3.mp3
  
  ffmpeg version 3.4.1 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4.1 --enable-
  
  shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --
  
  enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-
  
  gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-
  
  opencl --enable-videotoolbox --disable-lzma
  
    libavutil      55. 78.100 / 55. 78.100
  
    libavcodec     57.107.100 / 57.107.100
  
    libavformat    57. 83.100 / 57. 83.100
  
    libavdevice    57. 10.100 / 57. 10.100
  
    libavfilter     6.107.100 /  6.107.100
  
    libavresample   3.  7.  0 /  3.  7.  0
  
    libswscale      4.  8.100 /  4.  8.100
  
    libswresample   2.  9.100 /  2.  9.100
  
    libpostproc    54.  7.100 / 54.  7.100
  
  Input #0, mp3, from '/Users/work/dev/codebase/pinyin/pinyin-
  
  api/test/resources/bg_audio2.mp3':
  
    Metadata:
  
      title           : 喜洋洋
  
      album           : 贺岁新年音乐会
  
      encoder         : Lavf56.4.101
  
    Duration: 00:02:43.58, start: 0.025057, bitrate: 128 kb/s
  
      Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s
  
  Stream mapping:
  
    Stream #0:0 (mp3) -> volume
  
    volume -> Stream #0:0 (libmp3lame)
  
  Press [q] to stop, [?] for help
  
  Output #0, mp3, to '/Users/work/dev/codebase/pinyin/pinyin-
  
  api/test/resources/mixed3.mp3':
  
    Metadata:
  
      TIT2            : 喜洋洋
  
      TALB            : 贺岁新年音乐会
  
      TSSE            : Lavf57.83.100
  
      Stream #0:0: Audio: mp3 (libmp3lame), 44100 Hz, stereo, fltp
  
      Metadata:
  
        encoder         : Lavc57.107.100 libmp3lame
  
  [libmp3lame @ 0x7fad80001a00] Trying to remove 1152 samples, but the 
  
  queue is empty
  
  size=    2556kB time=00:02:43.57 bitrate= 128.0kbits/s speed=51.7x
  
  video:0kB audio:2556kB subtitle:0kB other streams:0kB global 
  
  headers:0kB muxing overhead: 0.003782%
  
  liqideMacBook-Pro:pinyin-api work$

  =====================================================================

• How to fix out of bounds error in to_soundarray in moviepy ?

  16 décembre 2019, par Rad0n

  The code works with the default youtube_dl name but not outtmpl name that I put in ydl_opts

  the solution given here - https://www.reddit.com/r/moviepy/comments/dwc27w/to_sound_array_issue/
  doesnt seem to work

  here is the code -

  import numpy as np
  
  import matplotlib.pyplot as plt
  
  %matplotlib inline
  
  import moviepy.editor as mpy
  
  !pip install youtube_dl
  
  import youtube_dl
  
  
  
  
  
  url = 'https://www.youtube.com/watch?v=5pIpVK3Gecg' 
  
  start_ts = 170
  
  end_ts = 180
  
  
  
  ydl_opts = {
  
    'format': 'bestaudio/best',
  
    'postprocessors': [{
  
        'key': 'FFmpegExtractAudio',
  
        'preferredcodec': 'wav',
  
        'preferredquality': '192',
  
    }],
  
    'outtmpl': 'original.wav',
  
  
  
  }
  
  
  
  with youtube_dl.YoutubeDL(ydl_opts) as ydl:
  
    ydl.download([url])
  
  
  
  
  
  from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip
  
  
  
  ffmpeg_extract_subclip('original.wav' ,170, 180, targetname='clipped.wav')
  
  
  
  talk = mpy.AudioFileClip('clipped.wav')
  
  
  
  
  
  plt.axis('off')
  
  
  
  sample_rate = talk.fps
  
  
  
  NFFT = sample_rate /25
  
  audio_data = talk.to_soundarray()
  
  
  
  fig, ax = plt.subplots(nrows=1, ncols=1, figsize=(2.44, 2.44), dpi=100.)
  
  
  
  ax.axis('off')
  
  spectrum, freqs, time, im = ax.specgram(audio_data.mean(axis=1), NFFT=NFFT, pad_to=4096, Fs=sample_rate, 
  
                                          noverlap=512, mode='magnitude', )

  and here is the error -

  [youtube] 5pIpVK3Gecg: Downloading webpage
  
  [youtube] 5pIpVK3Gecg: Downloading video info webpage
  
  [download] original.wav has already been downloaded
  
  [download] 100% of 48.12MiB
  
  [ffmpeg] Correcting container in "original.wav"
  
  [ffmpeg] Post-process file original.wav exists, skipping
  
  
  
  [MoviePy] Running:
  
  >>> /root/.imageio/ffmpeg/ffmpeg-linux64-v3.3.1 -y -i original.wav -ss 170.00 -t 10.00 -vcodec copy -acodec copy clipped.wav
  
  ... command successful.
  
  
  
  ---------------------------------------------------------------------------
  
  
  
  IndexError                                Traceback (most recent call last)
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/audio/io/readers.py in get_frame(self, tt)
  
      189                     indices = indices - (self.buffersize // 2 - len(self.buffer) + 1)
  
  --> 190                 result[in_time] = self.buffer[indices]
  
      191                 return result
  
  
  
  IndexError: index -59041 is out of bounds for axis 0 with size 40960
  
  
  
  
  
  During handling of the above exception, another exception occurred:
  
  
  
  IndexError                                Traceback (most recent call last)
  
  
  
  10 frames
  
  
  
   in <module>()
  
       30 
  
       31 NFFT = sample_rate /25
  
  ---> 32 audio_data = talk.to_soundarray()
  
       33 
  
       34 fig, ax = plt.subplots(nrows=1, ncols=1, figsize=(2.44, 2.44), dpi=100.)
  
  
  
  local/lib/python3.6/dist-packages/decorator.py:decorator-gen-194> in to_soundarray(self, tt, fps, quantize, nbytes, buffersize)
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/decorators.py in requires_duration(f, clip, *a, **k)
  
       52         raise ValueError("Attribute 'duration' not set")
  
       53     else:
  
  ---> 54         return f(clip, *a, **k)
  
       55 
  
       56 
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/audio/AudioClip.py in to_soundarray(self, tt, fps, quantize, nbytes, buffersize)
  
      115             if self.duration > max_duration:
  
      116                 return stacker(self.iter_chunks(fps=fps, quantize=quantize,
  
  --> 117                                                 nbytes=2, chunksize=buffersize))
  
      118             else:
  
      119                 tt = np.arange(0, self.duration, 1.0/fps)
  
  
  
  &lt;__array_function__ internals> in vstack(*args, **kwargs)
  
  
  
  /usr/local/lib/python3.6/dist-packages/numpy/core/shape_base.py in vstack(tup)
  
      277         # raise warning if necessary
  
      278         _arrays_for_stack_dispatcher(tup, stacklevel=2)
  
  --> 279     arrs = atleast_2d(*tup)
  
      280     if not isinstance(arrs, list):
  
      281         arrs = [arrs]
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/audio/AudioClip.py in generator()
  
       82                 tt = (1.0/fps)*np.arange(pospos[i], pospos[i+1])
  
       83                 yield self.to_soundarray(tt, nbytes=nbytes, quantize=quantize,
  
  ---> 84                                          fps=fps, buffersize=chunksize)
  
       85 
  
       86         if progress_bar:
  
  
  
  local/lib/python3.6/dist-packages/decorator.py:decorator-gen-194> in to_soundarray(self, tt, fps, quantize, nbytes, buffersize)
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/decorators.py in requires_duration(f, clip, *a, **k)
  
       52         raise ValueError("Attribute 'duration' not set")
  
       53     else:
  
  ---> 54         return f(clip, *a, **k)
  
       55 
  
       56 
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/audio/AudioClip.py in to_soundarray(self, tt, fps, quantize, nbytes, buffersize)
  
      128         #print tt.max() - tt.min(), tt.min(), tt.max()
  
      129 
  
  --> 130         snd_array = self.get_frame(tt)
  
      131 
  
      132         if quantize:
  
  
  
  local/lib/python3.6/dist-packages/decorator.py:decorator-gen-132> in get_frame(self, t)
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/decorators.py in wrapper(f, *a, **kw)
  
       87         new_kw = {k: fun(v) if k in varnames else v
  
       88                  for (k,v) in kw.items()}
  
  ---> 89         return f(*new_a, **new_kw)
  
       90     return decorator.decorator(wrapper)
  
       91 
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/Clip.py in get_frame(self, t)
  
       92                 return frame
  
       93         else:
  
  ---> 94             return self.make_frame(t)
  
       95 
  
       96     def fl(self, fun, apply_to=None, keep_duration=True):
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/audio/io/AudioFileClip.py in <lambda>(t)
  
       76         self.buffersize = self.reader.buffersize
  
       77 
  
  ---> 78         self.make_frame = lambda t: self.reader.get_frame(t)
  
       79         self.nchannels = self.reader.nchannels
  
       80 
  
  
  
  /usr/local/lib/python3.6/dist-packages/moviepy/audio/io/readers.py in get_frame(self, tt)
  
      200                 # repeat the last frame instead
  
      201                 indices[indices>=len(self.buffer)] = len(self.buffer) -1
  
  --> 202                 result[in_time] = self.buffer[indices]
  
      203                 return result
  
      204 
  
  
  
  IndexError: index -59041 is out of bounds for axis 0 with size 40960
  
  
  
  </lambda></module>

  it seems to work when I don’t set outtmpl option in ydl_opts and manually enter the name that ydl auto assigns to ffmpeg_extract_subclip

  import matplotlib.pyplot as plt
  
  %matplotlib inline
  
  import moviepy.editor as mpy
  
  !pip install youtube_dl
  
  import youtube_dl
  
  
  
  ydl_opts = {
  
      'format': 'bestaudio/best',
  
      'postprocessors': [{
  
          'key': 'FFmpegExtractAudio',
  
          'preferredcodec': 'wav',
  
          'preferredquality': '192',
  
      }],
  
  }
  
  with youtube_dl.YoutubeDL(ydl_opts) as ydl:
  
      ydl.download(['https://www.youtube.com/watch?v=5pIpVK3Gecg'])
  
  
  
  #Tyler, The Creator - 'IGOR,' Odd Future and Scoring a Number 1 Album _ Apple Music-5pIpVK3Gecg.wav is the name
  
  #that youtube_dl auto assigns. I got it from the output of ydl.download command
  
  
  
  from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip
  
  ffmpeg_extract_subclip("Tyler, The Creator - 'IGOR,' Odd Future and Scoring a Number 1 Album _ Apple Music-5pIpVK3Gecg.wav", 170, 180, targetname="talk.wav")
  
  
  
  
  
  talk = mpy.AudioFileClip('talk.wav')
  
  
  
  
  
  sample_rate = talk.fps
  
  NFFT = sample_rate /25
  
  audio_data = talk.to_soundarray()

• 2023-04-18 18:25:05 INFO discord.player ffmpeg process ##### successfully terminated with return code of 0

  19 avril 2023, par I_am_thing

  I am making a discord music bot with discord.py and ctx, it uses Spotify

  


  I am using FFmpeg for my music feature. This is my !play code

  


  client_id = ''
client_secret = ''
client_credentials_manager = SpotifyClientCredentials(client_id=client_id, client_secret=client_secret)
sp = spotipy.Spotify(client_credentials_manager=client_credentials_manager)

bot.volume = 0.5 # initial volume of the bot (can be changed)

@bot.command()
async def play(ctx, *, track_query):
    # check if the query is a valid Spotify link
    if 'open.spotify.com/track/' in track_query:
        track_id = track_query.split('/')[-1] # extract the track ID from the link
    else:
        # search for tracks with the given name
        track_results = sp.search(q=track_query, type='track', limit=1)
        if len(track_results['tracks']['items']) == 0:
            await ctx.send(f'Sorry, I could not find any track with the name "{track_query}".')
            return
        track_id = track_results['tracks']['items'][0]['id'] # get the track ID for the first search result
    track_info = sp.track(track_id) # get the track information for the given ID
    track_name = track_info['name']
    track_artist = track_info['artists'][0]['name']
    track_duration = time.strftime('%M:%S', time.gmtime(track_info['duration_ms']//1000))
    track_preview_url = track_info['preview_url'] # get the preview URL for the track
    if track_preview_url is None:
        await ctx.send(f'Sorry, the track "{track_name}" by {track_artist} cannot be played.')
        return
    voice_channel = ctx.author.voice.channel
    if voice_channel is None:
        await ctx.send('Please join a voice channel first.')
        return
    voice_client = await voice_channel.connect()
    audio_source = discord.FFmpegPCMAudio(track_preview_url, options="-b:a 128k -bufsize 512k")
    voice_client.play(audio_source, after=lambda e: print('Player error: %s' % e) if e else None)
    voice_client.source = discord.PCMVolumeTransformer(voice_client.source)
    voice_client.source.volume = bot.volume

    # format the embed message
    embed = discord.Embed(title=track_name, description=track_artist, color=0xff8c00)
    embed.add_field(name='Duration', value=track_duration, inline=True)
    embed.set_thumbnail(url=track_info['album']['images'][0]['url'])
    embed.set_footer(text='This music is from https://www.spotify.com/')
    await ctx.send(embed=embed)

    while voice_client.is_playing():
        await asyncio.sleep(1)
    await voice_client.disconnect()


  


  I joined the unofficial ffmpeg discord server no one could find a fix I searched for ages and I couldn't fix it