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• FFmpeg dosn't listen on RTP port in debian

  26 juin 2021, par MSS

  I compose a command to encode my HLS audio stream to a mp3 stream :

  


  ffmpeg -re -i "http://cdn1.live.irib.ir:1935/channel-live/smil:r-payam/chunklist_b307200_slFa.m3u8" -acodec libmp3lame   -f rtp rtp://127.0.0.1:9434/


  


  When I run the command on windows 10 machine FFmpeg start to listen on port 9434 and works perfectly :

  


  

  


  But when I run it on my Debian machine it doesn't bind to specified port and also any of bind ports doesn't work :

  


  

  


  Running out put :

  


  

  


  FFmpeg version info :

  


  ffmpeg version N-57736-ga501d55905-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2021 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libfribidi --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libxml2 --enable-libxvid --enable-libzimg
libavutil      57.  0.100 / 57.  0.100
libavcodec     59.  1.101 / 59.  1.101
libavformat    59.  3.100 / 59.  3.100
libavdevice    59.  0.100 / 59.  0.100
libavfilter     8.  0.102 /  8.  0.102
libswscale      6.  0.100 /  6.  0.100
libswresample   4.  0.100 /  4.  0.100
libpostproc    56.  0.100 / 56.  0.100


  


  Does any body knows the correct way of stream rtp on debian ?

  


• How to use ffmpeg to record video from SDP ?

  17 août 2024, par Thomas Carlton

  I'm running Ubuntu 18.04 and I have the following SDP Offer from Kurento Media Server. The offer is saved to the file a.sdp :

  


      v=0
    o=- 3831476180 3831476180 IN IP4 172.31.46.122
    s=Kurento Media Server
    c=IN IP4 172.31.46.122
    t=0 0
    m=audio 28460 RTP/AVPF 96 0 97
    a=setup:actpass
    a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
    a=rtpmap:96 opus/48000/2
    a=rtpmap:97 AMR/8000
    a=rtcp:28461
    a=sendrecv
    a=mid:audio0
    a=ssrc:1797155263 cname:user1913428254@host-e7ab0454
    m=video 18122 RTP/AVPF 102 103
    a=setup:actpass
    a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
    a=rtpmap:102 VP8/90000
    a=rtpmap:103 H264/90000
    a=fmtp:103 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f
    a=rtcp:18123
    a=sendrecv
    a=mid:video0
    a=rtcp-fb:102 nack
    a=rtcp-fb:102 nack pli
    a=rtcp-fb:102 goog-remb
    a=rtcp-fb:102 ccm fir
    a=rtcp-fb:103 nack
    a=rtcp-fb:103 nack pli
    a=rtcp-fb:103 ccm fir
    a=ssrc:2822275190 cname:user1913428254@host-e7ab0454


  


  Then, I'm calling ffmpeg to record this flow to a file :

  


  ffmpeg -max_delay 5000 -reorder_queue_size 16384 -protocol_whitelist file,crypto,udp,rtp -re -i a.sdp -vcodec copy -acodec aac -y output.mp4


  


  172.31.46.122 is the local IP adress and I'm running ffmpeg from the same machine as SDP offer. So ffmpeg has access to this IP address.

  


  I'm getting the error :

  


  


  bind failed : Address already in use.

  


  a.sdp : Invalid data found when processing input

  


  


  How can I solve that ?

  


• How To Make A Music Command Discord.py

  14 juin 2021, par Coder999

  I'm trying to make a music bot, but it just doesn't seem to work. Here's what I have so far.

  


  import asyncio
import functools
import itertools
import math
import random
from keep_alive import keep_alive
import discord
import nacl
import youtube_dl
from async_timeout import timeout
from discord.ext import commands
import os

bot = commands.Bot(command_prefix='+')

@bot.event
async def on_ready():
    print('Logged in as:\n{0.user.name}\n{0.user.id}'.format(bot))

youtube_dl.utils.bug_reports_message = lambda: ''

ytdl_format_options = {
    'format': 'bestaudio/best',
    'restrictfilenames': True,
    'noplaylist': True,
    'nocheckcertificate': True,
    'ignoreerrors': False,
    'logtostderr': False,
    'quiet': True,
    'no_warnings': True,
    'default_search': 'auto',
    'source_address': '0.0.0.0' # bind to ipv4 since ipv6 addresses cause issues sometimes
}

ffmpeg_options = {
    'options': '-vn'
}

ytdl = youtube_dl.YoutubeDL(ytdl_format_options)

class YTDLSource(discord.PCMVolumeTransformer):
    def __init__(self, source, *, data, volume=0.5):
        super().__init__(source, volume)
        self.data = data
        self.title = data.get('title')
        self.url = ""

    @classmethod
    async def from_url(cls, url, *, loop=None, stream=False):
        loop = loop or asyncio.get_event_loop()
        data = await loop.run_in_executor(None, lambda: ytdl.extract_info(url, download=not stream))
        if 'entries' in data:
            # take first item from a playlist
            data = data['entries'][0]
        filename = data['title'] if stream else ytdl.prepare_filename(data)
        return filename

@bot.command(name='join', help='Tells the bot to join the voice channel')
async def join(ctx):
    if not ctx.message.author.voice:
        await ctx.send("{} is not connected to a voice channel".format(ctx.message.author.name))
        return
    else:
        channel = ctx.message.author.voice.channel
        await channel.connect()
        await ctx.send(f'Joined channel `{channel}`')

@bot.command(name='leave', help='To make the bot leave the voice channel')
async def leave(ctx):
    voice_client = ctx.message.guild.voice_client
    if voice_client.is_connected():
        channel = ctx.message.author.voice.channel
        await voice_client.disconnect()
        await ctx.send(f'Left channel `{channel}`')
    else:
        await ctx.send("The bot is not connected to a voice channel.")

@bot.command(name='play', help='To play song')
async def play(ctx,url):
    try :
        server = ctx.message.guild
        voice_channel = server.voice_client

        async with ctx.typing():
            filename = await YTDLSource.from_url(url, loop=bot.loop)
            voice_channel.play(discord.FFmpegPCMAudio(executable="ffmpeg.exe", source=filename))
        await ctx.send('**Now playing:** {}'.format(filename))
    except:
        await ctx.send("The bot is not connected to a voice channel.")


  


  I have installed PyNaCl and all that stuff and my leave and join commands are working but my play command isnt. It says that it's not connected to a channel but it clearly is.