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• How to cut mp4 video, preserving fragmentation and segmentation ?

  8 mai 2023, par Volodymyr Kryachko

  I need to cut a video in mp4 format the way, preserving frames encoding and preserving video fragmentation and segmentation. I mean, the video contains 'moof' movie fragment boxes, 'sidx' segment index box. I'd like to cut from video a part from 'start time' to 'end time', but preserving 'moof', 'sidx' and rest of fragmentation/segmentation stuff. The 'major brand' of video is 'dash'.
ffmpeg can be used for this, but by default it wipes out all the fragmentation from the video and stores it into a single media data block.
The solution might be even simpler : cut from the video segments (or fragments) from m to n inclusively.

  


  I tried
ffmpeg.exe -ss 00:00:00 -to 00:45:00 -i video1.mp4 -c copy video2.mp4
but it doesn't preserve fragmentation.

  


• Skipping extractors execution since zero extractors were registered (Use `node —trace-warnings ...` to show where the warning was created)

  28 septembre 2023, par Parkster00

  I'm following a Discord Music Bot tutorial that uses ffmpeg, here is index.js

  


  require("dotenv").config();

const { REST } = require("@discordjs/rest");
const { Routes } = require("discord-api-types/v9");
const { Client, Collection, Intents } = require('discord.js');
const { Player } = require("discord-player");

const fs = require("node:fs");
const path = require("node:path");

const client = new Client({
    intents: ["Guilds", "GuildMessages", "GuildVoiceStates"]
});

// Set up our commands into an array
const commands = [];
client.commands = new Collection();

const commandsPath = path.join(__dirname, "commands");
const commandFiles = fs.readdirSync(commandsPath).filter(file => file.endsWith(".js"));

for (const file of commandFiles) {
    console.log(`${file}`)
    console.log(`${commandsPath}`)
    const filePath = path.join(commandsPath, file);
    console.log(`${filePath}`)
    const command = require(filePath);

    client.commands.set(command.data.name, command);
    commands.push(command.data.toJSON());
}

// Create the player, highest quality audio
client.player = new Player(client, {
    ytdlOptions: {
        quality: "highestaudio",
        highWaterMark: 1 << 25
    }
});

// Commands are registered
client.on("ready", () => {
    const guild_ids = client.guilds.cache.map(guild => guild.id);

    const rest = new REST({ version: "9" }).setToken(process.env.TOKEN);
    for (const guildId of guild_ids) {
        rest.put(Routes.applicationGuildCommands(process.env.CLIENT_ID, guildId), {
            body: commands
        })
            .then(() => console.log(`Added commands to ${guildId}`))
            .catch(console.error);
    }

});

client.on("interactionCreate", async interaction => {
    if (!interaction.isCommand()) return;

    const command = client.commands.get(interaction.commandName);
    if (!command) return;

    try {
        await command.execute({ client, interaction });
    }
    catch (err) {
        console.error(err);
        await interaction.reply("An error occured while executing that command.");
    }
});

console.log(process.env.TOKEN);
client.login(process.env.TOKEN);


  


  And here is play.js where I think the error originates :

  


  const { SlashCommandBuilder } = require("@discordjs/builders");
const { EmbedBuilder } = require("discord.js");
const { QueryType } = require('discord-player');


module.exports = {
    data: new SlashCommandBuilder()
        .setName("play")
        .setDescription("Plays a song.")
        .addSubcommand(subcommand => {
            return subcommand
                .setName("search")
                .setDescription("Searches for a song.")
                .addStringOption(option => {
                    return option
                        .setName("searchterms")
                        .setDescription("search keywords")
                        .setRequired(true);
                })
        })
        .addSubcommand(subcommand => {
            return subcommand
                .setName("playlist")
                .setDescription("Plays playlist from YT")
                .addStringOption(option => {
                    return option
                        .setName("url")
                        .setDescription("playlist url")
                        .setRequired(true);

                })
        })
        .addSubcommand(subcommand => {
            return subcommand
                .setName("song")
                .setDescription("Plays song from YT")
                .addStringOption(option => {
                    return option
                        .setName("url")
                        .setDescription("url of song")
                        .setRequired(true);

                })
        }),
    execute: async ({ client, interaction }) => {

        if (!interaction.member.voice.channel) {
            await interaction.reply("You must be in a voice channel to use this command.");
            return;
        }

        const queue = await client.player.nodes.create(interaction.guild);

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

        let embed = new EmbedBuilder();
        if (interaction.options.getSubcommand() === "song") {
            let url = interaction.options.getString('url');

            const result = await client.player.search(url, {
                requestedBy: interaction.user,
                searchEngine: QueryType.YOUTUBE_VIDEO
            });

            console.log(result.tracks);

            if (result.tracks.length === 0) {
                await interaction.reply("no results found");
                return
            }

            const song = result.tracks[0];
            await queue.addTrack(song);

            embed
                .setDescription(`Added **[${song.title}](${song.url})** to the queue.`)
                .setThumbnail(song.thumbnail)
                .setFooter({ text: `Duration: ${song.duration}` });
        }

        else if (interaction.options.getSubcommand() === "playlist") {
            let url = interaction.options.getString('url');

            const result = await client.player.search(url, {
                requestedBy: interaction.SlashCommandBuilder,
                searchEngine: QueryType.YOUTUBE_PLAYLIST,
            });

            if (result.tracks.length === 0) {
                await interaction.reply("no playlist found");
                return
            }

            const playlist = result.playlist;
            await queue.addTracks(playlist);

            embed
                .setDescription(`Added **[${playlist.title}](${playlist.url})** to the queue.`)
                .setThumbnail(playlist.thumbnail)
                .setFooter({ text: `Duration: ${playlist.duration}` });
        }

        else if (interaction.options.getSubcommand() === "search") {
            let url = interaction.options.getString('searchterms');

            const result = await client.player.search(url, {
                requestedBy: interaction.SlashCommandBuilder,
                searchEngine: QueryType.AUTO,
            });

            if (result.tracks.length === 0) {
                await interaction.reply("no results found");
                return
            }

            const song = result.tracks[0]
            await queue.addTrack(song);

            embed
                .setDescription(`Added **[${song.title}](${song.url})** to the queue.`)
                .setThumbnail(song.thumbnail)
                .setFooter({ text: `Duration: ${song.duration}` });
        }

        if (!queue.playing) await queue.play();

        await interaction.reply({
            embeds: [embed]
        })
    }
}


  


  Is ffmpeg called differently now ? Am I doing something wrong ?

  


  I've tried different installs of Ffmpeg and none seem to work, so I'd imagine it originates somewhere in my code.

  


• doc/APIchanges : update hashes and dates after last two commits.

  4 septembre 2013, par Clément Bœsch

  doc/APIchanges : update hashes and dates after last two commits.
  Sorry, I’m too lazy to fix the rest.
  

  • [DH] doc/APIchanges