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• Play ogg file using ffplay / ffmpeg on .NET

  12 juillet 2021, par Rchrd

  I'm trying to play an Ogg file in VB.NET using ffplay.exe but I don't know exactly how.
This is my code :

  


  Private Sub ButtonIR_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonIR.Click
    If IsNotNothing(TextBoxSource.text) Then
        TextBoxDETALLES.Clear()
        Try
            Dim CONVERSOR As New Process

            CONVERSOR.StartInfo.FileName = "C:\ffplay.exe"
            CONVERSOR.StartInfo.Arguments = TextBoxSource.Text 
            CONVERSOR.StartInfo.UseShellExecute = False 
            CONVERSOR.StartInfo.RedirectStandardOutput = True 
            CONVERSOR.StartInfo.RedirectStandardError = True 
            CONVERSOR.StartInfo.CreateNoWindow = True 

            CONVERSOR.Start() 

            While Not CONVERSOR.StandardError.EndOfStream
                TextBoxDETALLES.AppendText(CONVERSOR.StandardError.ReadLine & vbCrLf) 

                Application.DoEvents()
            End While

            MsgBox("HECHO") 
        Catch ex As Exception
            MsgBox(ex.Message)
        End Try
    Else
        MsgBox("Error")
    End If
End Sub


  


  I'm not trying to convert it, I'm trying to play it.

  


• Discord.py music bot doesn't play next song in queue

  10 mai 2019, par Lewis H

  This is my code for the bot I’m trying to create, it plays the music fine.

  ytdl_options = {
  
      'format': 'bestaudio/best',
  
      'restrictfilenames': True,
  
      'noplaylist': True,
  
      'nocheckcertificate': True,
  
      'quiet':True,
  
      'ignoreerrors': False,
  
      'logtostderr': False,
  
      'no_warnings': True,
  
      'default_search': 'auto',
  
      'source_address': '0.0.0.0' # using ipv4 since ipv6 addresses causes issues sometimes
  
      }
  
  
  
  
  
          # ffmpeg options
  
  ffmpeg_options= {
  
      'options': '-vn'
  
      }
  
  
  
  
  
  
  
  @bot.command()
  
  async def play(ctx, url:str = None): 
  
      queue = {} 
  
  
  
      channel = ctx.author.voice.channel    
  
      if ctx.voice_client is not None:  
  
          await ctx.voice_client.move_to(channel)
  
      elif ctx.author.voice and ctx.author.voice.channel:       
  
          await channel.connect()
  
  
  
      if not url:
  
          await ctx.send("Try adding a URL. e.g. !play https://youtube.com/watch?v=XXXXXXXXX")
  
  
  
      if ctx.voice_client is not None:
  
          vc = ctx.voice_client #vc = voice client, retrieving it
  
          ytdl = youtube_dl.YoutubeDL(ytdl_options)
  
  
  
  
  
          loop = asyncio.get_event_loop()
  
          data = await loop.run_in_executor(None, lambda: ytdl.extract_info(url))
  
  
  
          if 'entries' in data:
  
              data = data['entries'][0] 
  
          svr_id = ctx.guild.id
  
          if svr_id in queue:
  
              queue[svr_id].append(data)
  
  
  
          else:
  
              queue[svr_id] = [data]
  
          await ctx.send(data.get('title') + " added to queue")
  
  
  
          source = ytdl.prepare_filename(queue[svr_id][0])
  
          def pop_queue():
  
              if queue[svr_id] != []:
  
                  queue[svr_id].pop(0)
  
                  data = queue[svr_id][0]
  
              else:
  
                  vc.stop()
  
  
  
          if not vc.is_playing():
  
              vc.play(discord.FFmpegPCMAudio(source, **ffmpeg_options), after=lambda: pop_queue())

  The next song downloads and queues it fine, but once the first song finishes, it doesn’t play the next one. I can’t figure out how to make it play after the first song has commenced. I have the after= set to remove the top item of the queue, but how do I get it to play again ? Thanks

• How to play random part of mp4 file with vlc or something else ?

  13 septembre 2011, par pprzemek

  I have random part (99,9% somewhere in the middle) of the mp4 file. Problem is that it's not in any container or anything just a binary piece of the file in random offset and send to me... it will keep growing but it'll take a while and I need to play content right away.

  I can get all necessary metadata information for that file from other source before I even start receiving those binary data, but :

  1. How to do this ? I mean what headers do I need and how to get them ?
     and
  2. How to later tell vlc (or maybe some other player) that this moov atom (or some other data) that it should use for this part of the file and start playing it ?