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• Change Audio Pitch with Audio Speed Ffmpeg

  22 juin 2021, par Vivek Thummar

  i'm using Ffmpeg to change Audio Pitch and Speed and here's some command i'm trying :

  


  


  1. ffmpeg -i audioPath -filter:a atempo=audioSpeed,asetrate=audioPitch -ar sampleRate -b:a xValue(k) output.mp3

     


  


  2. ffmpeg -i audioPath -filter:a atempo=(audioSpeed / audioPitch),asetrate=(sampleRate * audioPitch),aresample=sampleRate

     


  


  


  and i tried some more commands also with little bit of changes.

  


  (here audioSpeed and audioPitch are in range of 0.5 to 2.0, sampleRate is between 8000 to 48000 and bitRate is between range of 96k to 320k)

  


  Now let's talk about the problem, if we only use atempo, it will change audio speed and if we use asetrate, it will change audio pitch along with speed and looks like it will ignore audioPitch value if we do something like - samplerate * audioPitch (if i use sampleRate = 8000 audio speed will decrease with thick voice and if sampleRate = 48000 audio speed will increase with thin voice(with means audioPitch will adjust according to sampleRate, as of i experienced from output audios))

  


  What i want is if i change audioSpeed to 0.5 and audioPitch to 2.0, then in output file speed will decrease and pitch will be also applied plus i have to change frequency(sample rate) and bitrate..

  


  Any help will be appreciated, Thank you..

  


• Discord.py music_cog, bot joins channel but plays no sound

  20 juin 2021, par Ozzy

  I have started using python a week ago or so. I have watched all the related videos on YT and checked google pages etc. But still no luck. My bot perfectly joins to the voice channel and when i use play it downloads and presumebly starts the play function but there is no sound or anything, it just joins and waits 1-2 mins then leaves with timeout error.

  


  from discord.ext import commands
import logging

from youtube_dl import YoutubeDL

logging.basicConfig(level=logging.INFO)


class music_cog(commands.Cog):
    def __init__(self, bot):
        self.bot = bot

        # all the music related stuff
        self.is_playing = False

        # 2d array containing [song, channel]
        self.music_queue = []
        self.YDL_OPTIONS = {'format': 'bestaudio', 'noplaylist': 'True', 'no_warnings': 'False'}
        self.FFMPEG_OPTIONS = {'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5',
                               'options': '-vn'}

        self.vc = ""

    # searching the item on youtube
    def search_yt(self, item):
        with YoutubeDL(self.YDL_OPTIONS) as ydl:
            try:
                info = ydl.extract_info("ytsearch:%s" % item, download=False)['entries'][0]
            except Exception:
                return False

        return {'source': info['formats'][0]['url'], 'title': info['title']}

    def play_next(self):
        if len(self.music_queue) > 0:
            self.is_playing = True

            # get the first url
            m_url = self.music_queue[0][0]['source']

            # remove the first element as you are currently playing it
            self.music_queue.pop(0)

            self.vc.play(discord.FFmpegPCMAudio(m_url, **self.FFMPEG_OPTIONS), after=lambda e: self.play_next())
        else:
            self.is_playing = False

    # infinite loop checking
    async def play_music(self):
        if len(self.music_queue) > 0:
            self.is_playing = True

            m_url = self.music_queue[0][0]['source']

            # try to connect to voice channel if you are not already connected

            if self.vc == "" or not self.vc.is_connected() or self.vc == None:
                self.vc = await self.music_queue[0][1].channel.connect()
            else:
                await self.vc.move_to(self.music_queue[0][1])

            print(self.music_queue)
            # remove the first element as you are currently playing it
            self.music_queue.pop(0)

            self.vc.play(discord.FFmpegPCMAudio(m_url, **self.FFMPEG_OPTIONS), after=lambda e: self.play_next())
        else:
            self.is_playing = False

    @commands.command(name="play", help="Plays a selected song from youtube")
    async def p(self, ctx, *args):
        query = " ".join(args)

        voice_channel = ctx.author.voice
        if voice_channel is None:
            # you need to be connected so that the bot knows where to go
            await ctx.send("Connect to a voice channel!")
        else:
            song = self.search_yt(query)
            if type(song) == type(True):
                await ctx.send(
                    "Could not download the song. Incorrect format try another keyword. This could be due to playlist or a livestream format.")
            else:
                await ctx.send("Song added to the queue")
                self.music_queue.append([song, voice_channel])

                if self.is_playing == False:
                    await self.play_music()

    @commands.command(name="queue", help="Displays the current songs in queue")
    async def q(self, ctx):
        retval = ""
        for i in range(0, len(self.music_queue)):
            retval += self.music_queue[i][0]['title'] + "\n"

        print(retval)
        if retval != "":
            await ctx.send(retval)
        else:
            await ctx.send("No music in queue")

    @commands.command(name="skip", help="Skips the current song being played")
    async def skip(self, ctx):
        if self.vc != "" and self.vc:
            self.vc.stop()
            await ctx.send("Stopped!")
            # try to play next in the queue if it exists
            await self.play_music()
            await ctx.send("Skipped!")


def setup(bot):
    bot.add_cog(music_cog(bot))


  


  I enabled logs to be sure, when it connects there's just that info :

  


  INFO:discord.voice_client:Connecting to voice... | INFO:discord.voice_client:Starting voice handshake... (connection attempt 1)

  


  I have also checked FFMPEG and its Path, tried different codes and methods but even though they work there is no sound. Also I installed discord.py[voice] too.

  


  I appreciate help already, thanks.

  


• RTMP server - without watermarks everything works fine --- with watermark one stream will not work nginx ffmpeg overlay watermark

  10 juin 2021, par Ashley Taylor

  okay so i used the below config and everything works great both youtube and facebook work .

  


  rtmp {
    server {
        listen 1935;
        chunk_size 8192;
        application live {
        record off;
        live on;
        push rtmp://a.rtmp.youtube.com/live2/djfghjkdfhgkjsdfglsjdfhj;
                push rtmp://127.0.0.1:19350/rtmp/453uy4uty8ryt85ty85yt8; (facbook)
                    }
    
        }
    

    }


  


  Now i have tried 2 seprate way to add a water mark (Youtube works fine Every time)
Facebook does not stream at all let alone with a watermark

  


  examples i have tried below

  


  rtmp {
server {
    listen 1935;
    chunk_size 8192;
    application live {
    record off;
    live on;
            exec /bin/ffmpeg  -i rtmp://127.0.0.1:1935/live/$name
             -vf "movie=/etc/nginx/images/logo.png[logo];[0][logo]overlay=0:300"
             -c:v libx264 -f flv rtmp://127.0.0.1:1935/push/$name;
              }

    application push {
    live on;
    push rtmp://a.rtmp.youtube.com/live2/djfghjkdfhgkjsdfglsjdfhj;
            }
   }
}


  


  and another

  


  rtmp {
server {
    listen 1935;
    chunk_size 8192;
    application live {
    record off;
    live on;
            exec /bin/ffmpeg  -i rtmp://127.0.0.1:1935/live/$name
             -vf "movie=/etc/nginx/images/logo.png[logo];[0][logo]overlay=0:300"
             -c:v libx264 -f flv rtmp://127.0.0.1:1935/push/$name;
    
                    exec /bin/ffmpeg  -i rtmp://127.0.0.1:1935/live/$name
             -vf "movie=/etc/nginx/images/logo.png[logo];[0][logo]overlay=0:300"
             -c:v libx264 -f flv rtmp://127.0.0.1:1935/pushh/$name;
            }

    application push {
    live on;
    push rtmp://a.rtmp.youtube.com/live2/djfghjkdfhgkjsdfglsjdfhj;
            }

            application pushh {
            live on;
            push rtmp://127.0.0.1:19350/rtmp/453uy4uty8ryt85ty85yt8;
            }
   }
}


  


  Now for the life of me i just cannot get my brain to work.
i am very new to rtmp and have tried a dozen other ways before coming here for help.

  


  i know this is going to be something i where i am making such a simple mistake

  


  but on the other hand paying over $49 for restream.io for a shoddy service i just have to learn this for my own servers