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• UDP Streaming with ffmpeg - overrun_nonfatal option

  21 octobre 2022, par Julien Greard

  I'm working on a software which uses FFMPEG C++ libs to make an acquisition from an UDP streaming.

  



  FFMPEG (1.2) is implemented and running but I get some errors (acquisition crashes and restarts). The log displays the following message :

  



  *Circular buffer overrun. To avoid, increase fifo_size URL option. To survive in such case, use overrun_nonfatal option*

  



  I searched online for documentation about how to use this option, but I only got informations about how to use when running directly ffmpeg executable.

  



  Would someone know how to set the correct option in my C++ code to :
- increase fifo_size
- use overrun_nonfatal option

  



  Thanks

  


• Use of library with GPL license on Android - ffmpeg

  7 septembre 2016, par Carlos

  I am using some libraries in my android application and all of these are with Apache 2.0 license.
  Only one has GPLv3 license :
  https://github.com/WritingMinds/ffmpeg-android-java

  So, if I use this library I must share my application complete code online ? can I solve my problem differently ?

  Thanks

• Hosting music bot on heroku

  2 mars 2021, par itsmaxplayz

  I have made a discord bot on discord.py rewrite which plays music in a voice channel. The code is as follows :

  


  def search(query):

    with ytdl:
        try:
            requests.get(query)
        except:
            info = ytdl.extract_info(f"ytsearch:{query}", download=False)['entries'][0]
        else:
            info = ytdl.extract_info(query, download=False)
    return info, info['formats'][0]['url']

ydl_opts = {
    'format': 'bestaudio/best',
    'quiet': True,
    'postprocessors': [{
        'key': 'FFmpegExtractAudio',
        'preferredcodec': 'mp3',
        'preferredquality': '192',
    }],

}

ytdl = youtube_dl.YoutubeDL(ydl_opts)

FFMPEG_OPTS = {'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5', 'options': '-vn'}

@client.command(aliases=['p'])
async def play(ctx, *, url):
    channel = ctx.message.author.voice.channel
    voice = get(client.voice_clients, guild=ctx.guild)
    if voice and voice.is_connected():
        pass
    else:
        voice = await channel.connect()
        await ctx.send(f'Successfully joined `{channel}`')

    if voice.is_playing():
        await ctx.send('Already playing a song. Try using -q or -queue to queue a song 
    :thumbsup:')
    else:
        await ctx.send(f'Searching for: `{url}` :mag_right:')
        video, source = search(url)
        voice.play(FFmpegPCMAudio(source, **FFMPEG_OPTS))
        voice.is_playing()
        await ctx.send(f'Playing: :notes: `{video["title"]}` - Now!')


  


  It works locally but when I upload the code to heroku (I use github to push the code to heroku), the bot does not come online.
These are the libraries that I imported in the code :

  


  import discord
import json
import random
import youtube_dl
import requests
import os
from discord.ext import commands
from discord.utils import get
from discord import FFmpegPCMAudio
import ctypes
import ctypes.util


  


  I have installed the ffmpeg buildpacks as I saw in another post on this website but the bot doesn't come online.

  


  Contents of my requirement file :

  


  discord.py,
discord.py[voice],
ffmpeg,
PyNaCl,
youtube_dl,
requests,
discord.py[FFmpegPCMAudio],
colorlog.