Bahamut Anime Downloader is a library designed to fetch low-quality anime episodes from Bahamut Anime.

This package is used by baha-anime-skip internally, which adds "skip" buttons for anime openings and endings on the Bahamut Anime.

Simply provide the sn (serial number) of the desired anime, and the tool will seamlessly:

• Fetch and Parse: Download the meta-m3u8 and m3u8 playlist files, then parse them for you.
• Download and Decrypt: Acquire the TS (Transport Stream) files and automatically decrypt them.

Note: This tool stops short of merging the downloaded TS files into a single MP4 file. If you require this functionality, you can easily extend it with the merge function available in the baha-anime-dl-ext package.

The package is platform-agnostic. You can plug in any custom implementations for fetch and subtle as needed.

import fs from "node:fs";
import path from "node:path";
import { Downloader } from "baha-anime-dl";

const SN = 34886;
const dir = "tmp";

if (!fs.existsSync(dir)) {
    fs.mkdirSync(dir);
}

main();

async function main() {
    const downloader = new Downloader();
    const download = downloader.download(SN);

    const meta = await download.meta;
    fs.writeFileSync(path.join(dir, "meta.m3u8"), meta);

    const playlist = await download.playlist;
    fs.writeFileSync(path.join(dir, "playlist.m3u8"), playlist);

    for (let i = 0; i < download.segments.length; i++) {
        const segment = download.segments[i];
        segment.content.then((content) => {
            fs.writeFileSync(path.join(dir, segment.filename), Buffer.from(content));
        });
    }
}

import fs from "node:fs";
import { Downloader } from "baha-anime-dl";
import { merge } from "baha-anime-dl-ext";

const SN = 34886;

main();

async function main() {
    const downloader = new Downloader();
    const download = downloader.download(SN);

    const mp4 = await merge(download);
    fs.writeFileSync(`${SN}.mp4`, mp4);
}

My use case is for audio analysis, particularly to identify opening and ending songs in anime episodes. Here are some additional ideas:

• Conducting audio analysis for various purposes.
• Training a video upscaler model, though this could require additional authorization steps.

Feel free to dive in and explore the potential of Bahamut Anime Downloader!