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• FFmpeg audio spectrum visualizer

  10 décembre 2018, par Simone Sole

  I’m actually working to a project for music video generation using ffmpeg.
  I’d like to know if it’s possibile to use ffmpeg itself or a combination of command line component under windows environment to make a visualization of audio spectrum (ahistogram ?) over a static background image like the one I found on the web and could see here (image attachment).

  Any ideas or coding tips ?

  Thank you in advance
  Simo

• ffmpeg transcode ONLY if downsampling

  22 avril 2020, par Shurov

  I'm using Airsonic as a home music server. It has ffmpeg transcoding capabilities. I'd like to transcode audio ONLY IF input stream has higher parameters (any of kb/s, bit, kHz). And leave native quality if file has lower params (so not to UPscale). Is it possible using some of the ffmpeg options ?

  



  P.S. Airsonic has some Downsample field, but it doesn't seem to work at all.

  


• How to make a bot to search song automatically on YouTube after input some words of the song ?

  30 juin 2021, par SOHAM DAS BISWAS.

  I had made a discord bot using python which plays YouTube songs. It takes the link to play a song I want to make it short. I want to give some words of the song and it will search automatically the song on YouTube and play it for me.

  


  My Code :-

  


  import discord,requests, sys, webbrowser, bs4
import youtube_dl
import os
from dotenv import load_dotenv
import ffmpeg
from discord.ext import *
from discord.ext import commands
from discord.ext.commands import Bot
from discord.voice_client import VoiceClient
import asyncio
@client.command(pass_context=True)                      #====================================Join
async def join(ctx):
    channel = ctx.author.voice.channel
    await channel.connect()
@client.command()                                         #===================================Play
async def play(ctx, url:str):
    song_there = os.path.isfile("song.mp3")
    try:
        if song_there:
            os.remove("song.mp3")
            player.clear()
    except PermissionError:
        await ctx.send("Wait for the current playing music end or use the 'stop' command...")
        return
    await ctx.send("Getting everything ready, playing audio soon, depends on your internet speed...")
    print("Someone wants to play music let me get that ready for them...")
    voice = discord.utils.get(client.voice_clients, guild=ctx.guild)
    ydl_opts = {
        'format': 'bestaudio/best',
            'postprocessors': [{
            'key': 'FFmpegExtractAudio',
            'preferredcodec': 'mp3',
            'preferredquality': '192',
        }],
    }
    with youtube_dl.YoutubeDL(ydl_opts) as ydl:
        ydl.download([url])
    for file in os.listdir("./"):
        if file.endswith(".mp3"):
            os.rename(file, 'song.mp3')
    voice.play(discord.FFmpegPCMAudio("song.mp3"))
    
    voice.volume = 100


  


  Please help me to solve this.