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• Recording Video and Voice at the same time to .mp4 on raspbarry pi

  18 juin 2014, par SunBae Yim

  I tried for 3 months, But can’t resolved it.
  on Raspberry Pi.

  I want to recording video and voice to mp4, And Realtime streaming(Mjpeg) no delay.

  Of course, It has Pi Camera Module.
  And I installed a soundcard as below.

  pi@raspberrypi ~ $ aplay -l
  
  **** List of PLAYBACK Hardware Devices ****
  
  card 0: sndrpiproto [snd_rpi_proto], device 0: WM8731 HiFi wm8731-hifi-0 []
  
    Subdevices: 1/1
  
    Subdevice #0: subdevice #0

  First Goal is :

  Recording voice(aac or mp3) and video(h264) at the same time to .mp4.
  h264 and aac are combined into mp4 container.
  I failed make it using ffmpeg. too difficult.

  Sencond Goal is :

  Realtime Streaming for MJPEG.
  I receive stream using Safari, Chrome, FireFox, Explorer on Windows & Android.
  And using IP CAM VIEWER of Android App.

  I tried various solution,
  But most solutions are only video no voice.

  Third Goal is :

  Above Functions are run at the same time on Raspberry Pi.
  Maybe I will make Python and Shell Scripts files for run above solution at the same time.

  Please Help me !

  Thanks,
  SB YIM

• how to cancel voice audio echo with ffmpeg ? [closed]

  29 novembre 2012, par user1861979

  when using ffmpeg to live streaming audio from desktop, voice echo happends. Is there an AEC filter in ffmpeg ?

• My discord bot (python) isn't connecting to voice channel

  24 juin 2023, par BeanieYi

  My discord bot for some reason is not connecting to my voice channel when I type
 !play some url ... My bot is running because I've ran other tests on it. No error messages show up, so I'm lost as to why it's not working. This is the part of the code where it commands to bot to connect

  


      async def play_song(self, ctx):
        """
        Function plays music. Checks if user in voice channel
        """
        if len(self.queue) > 0:
            self.play = True
            url = self.queue[0][0]["source"]

            if self.vc is None or not self.vc.is_connected():   # If not in voice channel
                self.vc = await self.queue[0][1].connect()  # Wait until user joins channel
                if self.vc == None: # If user doesn't join channel, quit
                    await ctx.send("Could not connect D:")
                    return  
            else:
                await self.vc.move_to(self.queue[0][1]) # Moves bot to channel user is in

            self.queue.pop(0) 
            self.vc.play(discord.FfmpegPCMAudio(url, **self.ffmpeg_options), after=lambda e: self.next_song()) 
        else:
            self.play = False


  


  I added the following code below because this was the "new" method for cog, but it didn't yield any results for me. I also made sure my bot had permission on Discord to join channels and talk.

  


  async def setup(bot):
    await bot.add_cog(Event(bot))