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• python3.6 ffmpeg call MacOSX

  8 avril 2017, par Awazleon

  I’m using Python 3.6 on MacOSX. I would like to use FFmpeg as Python sub-process. Everything works fine when using the OSX embedded Python 2.7 but using 3.6, this doesn’t work.
  I’ve got an error message because it doesn’t find FFmepg.

  raise FFExecutableNotFoundError("Executable ’0’ not found".format(self.executable))
  ffmpy.FFExecutableNotFoundError : Executable ’ffmpeg’ not found

  As you can se I tried with ffmpy but I also got the same result by invoking FFmpeg directly

  from subprocess import call
  call(["ffmpeg"])
  Traceback (most recent call last) :
  File "", line 1, in
  call(["ffmpeg"])
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/subprocess.py", line 267, in call
  with Popen(*popenargs, **kwargs) as p :
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/subprocess.py", line 707, in init
  restore_signals, start_new_session)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/subprocess.py", line 1326, in _execute_child
  raise child_exception_type(errno_num, err_msg)
  FileNotFoundError : [Errno 2] No such file or directory : ’ffmpeg’

  I installed the FFmpeg lib. by using Brew through Terminal. It was well installed but only visible by Python 2.7, not 3.6.

  Calling it from terminal is working :

  iMac-de-xxxxx : utilisateur$ ffmpeg

  ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
  built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
  configuration : —prefix=/usr/local/Cellar/ffmpeg/3.2.4 —enable-shared —enable-pthreads —enable-gpl —enable-version3 —enable-hardcoded-tables —enable-avresample —cc=clang —host-cflags= —host-ldflags= —enable-libmp3lame —enable-libx264 —enable-libxvid —enable-opencl —disable-lzma —enable-vda

  I’m not (yet) a Linux specialist but I think that a path is missing for 3.6 to find FFmpeg.
  Any clue to solve this annoying issue ?

• ffmpeg - How to convert massive amounts of files in parallel ?

  15 juillet 2019, par Forivin

  I need to convert about 1.5TiB or audio files which are in either flac or wav format. They need to be converted into mp3 files, keeping important meta data and the cover art etc. and the bitrate needs to be 320k.

  This alone is easy :

  ffmpeg -i "$flacFile" -ab 320k -map_metadata 0 -id3v2_version 3 -vsync 2 "$mp3File" < /dev/null

  But the problem is making it faster. The command from above only uses 12.5% of the CPU. I’d much rather use like 80%. So I played around with the threads flag, but it doesn’t make it faster or slower :

  ffmpeg -i "$flacFile" -ab 320k -map_metadata 0 -id3v2_version 3 -vsync 2 -threads 4 "$mp3File" < /dev/null

  But it only utilizes my CPU by 13%. I think it only uses one thread. My CPU has 8 physical cores btw (+ hyperthreading).

  So my idea now is to somehow have multiple instances of ffmpeg running at the same time, but I have no clue how to do that properly.

  This is my current script to take all flac/wav files from one directory (recursively) and convert them to mp3 files in a new directory with the exact same structure :

  #!/bin/bash
  
  
  
  SOURCE_DIR="/home/fedora/audiodata_flac"
  
  TARGET_DIR="/home/fedora/audiodata_mp3"
  
  
  
  echo "FLAC/WAV files will be read from '$SOURCE_DIR' and MP3 files will be written to '$TARGET_DIR'!"
  
  read -p "Are you sure? (y/N)" -n 1 -r
  
  echo    # (optional) move to a new line
  
  if [[ $REPLY =~ ^[Yy]$ ]] ; then # Continue if user enters "y"
  
  
  
      # Find all flac/wav files in the given SOURCE_DIR and iterate over them:
  
      find "${SOURCE_DIR}" -type f \( -iname "*.flac" -or -iname "*.wav" \) -print0 | while IFS= read -r -d '' flacFile; do
  
          if [[ "$(basename "${flacFile}")" != ._* ]] ; then # Skip files starting with "._"
  
              tmpVar="${flacFile%.*}.mp3"
  
              mp3File="${tmpVar/$SOURCE_DIR/$TARGET_DIR}"
  
              mp3FilePath=$(dirname "${mp3File}")
  
              mkdir -p "${mp3FilePath}"
  
              if [ ! -f "$mp3File" ]; then # If the mp3 file doesn't exist already
  
                  echo "Input: $flacFile"
  
                  echo "Output: $mp3File"
  
                  ffmpeg -i "$flacFile" -ab 320k -map_metadata 0 -id3v2_version 3 -vsync 2 "$mp3File" < /dev/null
  
              fi
  
          fi
  
      done
  
  fi

  I mean I guess I could append an & to the ffmpeg command, but that would cause throusands of ffmpeg instances to run at the same time, which is too much.

• music bot stopping music entirely instead of skipping one song discord.py

  26 septembre 2018, par Y4h L

  When i use my skip command, my program stops playing music, instead of skipping a song.
  Here’s the code :

  queues = {}
  
  players = {}
  
  opts = {
  
              'default_search': 'auto',
  
              'quiet': True,
  
          }
  
  voice_states = {}
  
  
  
  class voice:
  
      def __init__(self, client):
  
          self.client = client
  
  
  
      @commands.command(pass_context=True)
  
      async def skip(self, ctx):
  
          id = ctx.message.server.id
  
          players[id].stop()
  
  
  
      @commands.command(
  
          pass_context=True
  
      )
  
      async def play(self, ctx, url):
  
          server = ctx.message.server
  
          channel = ctx.message.author.voice.voice_channel
  
          try:
  
              await self.client.join_voice_channel(channel)
  
          except:
  
              print(" ")
  
          if server.id not in players or players[server.id].is_done():
  
              server = ctx.message.server
  
              voice_client = self.client.voice_client_in(server)
  
              player = await voice_client.create_ytdl_player(url, after=lambda: queue(server.id), ytdl_options=opts)
  
              players[server.id] = player
  
              await self.client.say('Now Playing ' )
  
              player.start()
  
          else:
  
              server = ctx.message.server
  
              voice_client = self.client.voice_client_in(server)
  
              player = await voice_client.create_ytdl_player(url, after=lambda: queue(server.id),  ytdl_options=opts)
  
  
  
              if server.id in queues:
  
                  queues[server.id].append(player)
  
              else:
  
                  queues[server.id] = [player]
  
              await self.client.say('Now Playing ' )
  
              await self.client.say('Video queued.')
  
  
  
      def queue(self, id):
  
          if queues[id] != []:
  
              player = queues[id].pop(0)
  
              players[id] = player
  
              player.start()
  
  
  
  def setup(client):
  
      client.add_cog(voice(client))

  i receive no error codes,
  just no queue.
  Fixes to my code or own solutions are appreciated.
  Sorry, for long code, but you need all the context