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• How to create music video using ffmpeg ?

  17 juin 2020, par Pierre Dunn

  How can I join together flac or wav file with a cover image (not only as a thumbnail, but also as a static image for all video duration) ?

  



  How to achieve the best audio quality ? Should I use 48 kHz or 44.1 kHz frequencies for my audio ?

  



  Should I tag my audio files before converting them to WebM ?

  


• Problem when adding background music to video without sound

  27 avril 2020, par Nguyễn Trọng

  I am trying to cut a piece of background music and loop them into a video and change the speed of the video with the command below.

  



   String[] cmd = {"-y", "-i", input, "-i", shortsound,
            "-filter_complex",
            "[0:v]trim=0:120,setpts=1/2*(PTS-STARTPTS)[v1]," +
                    "[0:v]trim=120:240,setpts=1/2*(PTS-STARTPTS)[v2];" +
                    "[1:a]atrim=0:6,asetpts=PTS-STARTPTS," +
                    "asetrate=44100,aloop=-1:2e+09," +
                    "aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=stereo,volume=1.0[bg];" +
                    "[0:a]atrim=0:120,asetpts=PTS-STARTPTS,atempo=2.0" +
                    ",aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=stereo[a1]," +
                    "[0:a]atrim=120:240,asetpts=PTS-STARTPTS,atempo=2.0," +
                    "aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=stereo[a2];" +
                    "[v1][a1][v2][a2]concat=n=2:v=1:a=1[video][audio];[audio]volume=0.5[avolume];" +
                    "[avolume][bg]amerge=2,pan=stereo|c0code>

  



  Everything was fine until I tried with a video without sound, it didn't work.
How when input is a video without sound ?

  


• Discord js music player bot suddenly leaves

  29 janvier 2024, par ImK

  So I made a music bot for discord js that uses discord player package. The command runs perfectly but in the middle song suddenly stops I tried searching everywhere nothing works and i think its an issue for ffmpeg but im not so sure

  


  bot.player = new Player(bot, {
    ytdlOptions: {
        quality: 'lowestaudio',
        highWaterMark: 1 >> 25
    },
})

const player = bot.player;

//play command 


bot.on('interactionCreate', async interaction =>{
    if(interaction.commandName === 'play') {

        const song = interaction.options.get('song').value;
        const res = await player.search(song, {
            searchEngine: QueryType.SPOTIFY_SONG
        });


        if (!res || !res.tracks.length) return interaction.reply({ content: `No results found ${interaction.member}... try again ? ❌`, ephemeral: true });

        const queue = await player.createQueue(interaction.guild)

        if (!queue.connection) await queue.connect(interaction.member.voice.channel);


        await interaction.channel.send({ content:`Loading your ${res.playlist ? 'playlist' : 'track'}... 🎧`});

        const track = await res.tracks[0]

        console.log(track)
        if(!track)  return interaction.channel.send({content: 'No song found'});

        queue.addTrack(track)

        queue.play();

    }
})


  


  After leaving the channel, other commands and bot work fine