Sur d’autres sites (6988)

• How do i fix the error "ffmpeg was not found." in my discord bot ?

  4 janvier 2023, par Anton Abboud

  I am currently trying to make my discord bot play a youtube audio from a URL. However, I can't pass the error "ffmpeg was not found". I have tried to use different solutions but nothing has worked. My code currently looks like this :

  


  import discord
import asyncio
from discord import FFmpegPCMAudio
from discord.utils import get
from discord.ext import commands
from youtube_dl import YoutubeDL

@bot.command(brief="Plays a single video, from a youtube URL")
async def play(ctx, url):
    if not ctx.message.author.voice:
        await ctx.send("{} is not connected to a voice channel".format(ctx.message.author.name))
        return
    else:
        global channel_player
        channel_player = ctx.message.author.voice.channel
    await channel_player.connect()
    YDL_OPTIONS = {'format': 'bestaudio', 'noplaylist':'True'}
    FFMPEG_OPTIONS = {'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5', 'options': '-vn'}
    voice = get(bot.voice_clients, guild=ctx.guild)

    if not voice.is_playing():
        with YoutubeDL(YDL_OPTIONS) as ydl:
            info = ydl.extract_info(url, download=False)
        URL = info['url']
        voice.play(FFmpegPCMAudio(URL, **FFMPEG_OPTIONS))
        voice.is_playing()
    else:
        await ctx.send("Already playing song")
        return


  


  I am relatively new to coding so if you have any other suggestions on top of (hopefully) the solution to the problem, feel free !

  


  I am relatively new to coding so if you have any other suggestions on top of (hopefully) the solution to the problem, feel free !

  


  I have as I said tried a few different other approaches but nothing has worked. The one that seemed to almost work was to download ffmpeg through libx264 and create files that python could be directed to.

  


  I also tried downloadeing the most recent version of ffmpeg and 7zip to extract it.

  


• How to add an album cover to an mp3 stream using FFmpeg ?

  29 décembre 2022, par Daniel LAPIDES

  I'm having a bit of an issue and I'd really appreciate it if I could get some insights.

  



  What I am trying to do is to add an album cover to the mp3 file that will be downloaded from the front-end.

  



  Context

  



  I'm downloading a video stream from YouTube and converting it to mp3 using fluent-ffmpeg.
  
To get the video I use the ytdl npm module.

  



  I then pipe this stream to the front-end.

  



  What I've found

  



  fluent-ffmpeg offers either pipe() or saveToFile().

  



  What I figured is that when I use the saveToFile() function and actually save my stream into an mp3 file, it works, I do get the album cover.

  



  But when I pipe the stream to front-end or even into a file, the song is saved properly into a file but without the album cover.

  



  Here is my code

  



  Back-end (NodeJS)

  



  let video = ytdl(`http://youtube.com/watch?v=${videoId}`, {
  filter: (format) => format.container === 'mp4' && format.audioEncoding,
  quality: 'lowest'
});

let stream = new FFmpeg()
  .input(video)
  .addInput(`https://i.ytimg.com/vi/${videoId}/default.jpg`)
  .outputOptions([
      '-map 0:1',
      '-map 1:0',
      '-c copy',
      '-c:a libmp3lame',
      '-id3v2_version 3',
      '-metadata:s:v title="Album cover"',
      '-metadata:s:v comment="Cover (front)"'
  ])
  .format('mp3');


  



  And then piping it to my front-end.

  



  stream.pipe(res);
stream
  .on('end', () => {
    console.log('******* Stream end *******');
    res.end.bind(res);
  })
  .on('error', (err) => {
    console.log('ERR', err);
    res.status(500).end.bind(res);
  });


  



  Front-end (React)

  



  axios.get(url)
  .then(res => {
    axios(`${url}/download`, {
      method: 'GET',
      responseType: 'blob'
    })
      .then(stream => {
        const file = new Blob(
          [stream.data],
          { type: 'audio/mpeg' });
        //Build a URL from the file
        const fileURL = URL.createObjectURL(file);
      })
      .catch(err => {
        console.log('ERROR', err);
      });
    })
    .catch(err => {
      console.log('ERROR', err);
    });


  


• How to speed up ffmpeg video conversion

  22 avril 2018, par user2993497

  ffmpeg -i video.mp4 -c:v libvpx-vp9 -keyint_min 150 -g 150 -tile-columns 4 -frame-parallel 1  -f webm -dash 1 -an -vf scale=160:190 -b:v 250k -dash 1 video_160x90_250k.webm -an -vf scale=320:180 -b:v 500k -dash 1 video_320x180_500k.webm -an -vf scale=640:360 -b:v 750k -dash 1 video_640x360_750k.webm -an -vf scale=640:360 -b:v 1000k -dash 1 video_640x360_1000k.webm -an -vf scale=1280:720 -b:v 1500k -dash 1 video_1280x720_1500k.webm

  I’m converting a single video into multiple videos at different resolutions. But it’s painfully slow. how can I speed this up ?