@bililive-tools/douyin-recorder
Version:
@bililive-tools douyin recorder implemention
360 lines (359 loc) • 11.4 kB
JavaScript
import path from "node:path";
import mitt from "mitt";
import { defaultFromJSON, defaultToJSON, genRecorderUUID, genRecordUUID, FFMPEGRecorder, } from "@bililive-tools/manager";
import { getInfo, getStream } from "./stream.js";
import { ensureFolderExist, singleton } from "./utils.js";
import { resolveShortURL } from "./douyin_api.js";
import DouYinDanmaClient from "douyin-danma-listener";
function createRecorder(opts) {
// 内部实现时，应该只有 proxy 包裹的那一层会使用这个 recorder 标识符，不应该有直接通过
// 此标志来操作这个对象的地方，不然会跳过 proxy 的拦截。
const recorder = {
id: opts.id ?? genRecorderUUID(),
extra: opts.extra ?? {},
// @ts-ignore
...mitt(),
...opts,
availableStreams: [],
availableSources: [],
qualityMaxRetry: opts.qualityRetry ?? 0,
qualityRetry: opts.qualityRetry ?? 0,
state: "idle",
getChannelURL() {
return `https://live.douyin.com/${this.channelId}`;
},
checkLiveStatusAndRecord: singleton(checkLiveStatusAndRecord),
toJSON() {
return defaultToJSON(provider, this);
},
async getLiveInfo() {
const channelId = this.channelId;
const info = await getInfo(channelId);
return {
channelId,
...info,
};
},
async getStream() {
const res = await getStream({
channelId: this.channelId,
quality: this.quality,
streamPriorities: this.streamPriorities,
sourcePriorities: this.sourcePriorities,
});
return res.currentStream;
},
};
const recorderWithSupportUpdatedEvent = new Proxy(recorder, {
set(obj, prop, value) {
Reflect.set(obj, prop, value);
if (typeof prop === "string") {
obj.emit("Updated", [prop]);
}
return true;
},
});
return recorderWithSupportUpdatedEvent;
}
const ffmpegOutputOptions = [
"-c",
"copy",
"-movflags",
"faststart+frag_keyframe+empty_moov",
"-min_frag_duration",
"10000000",
];
const ffmpegInputOptions = [
"-reconnect",
"1",
"-reconnect_streamed",
"1",
"-reconnect_delay_max",
"10",
"-rw_timeout",
"15000000",
];
const checkLiveStatusAndRecord = async function ({ getSavePath, banLiveId, isManualStart, }) {
if (this.recordHandle != null)
return this.recordHandle;
const liveInfo = await getInfo(this.channelId);
const { living, owner, title } = liveInfo;
this.liveInfo = liveInfo;
if (liveInfo.liveId === banLiveId) {
this.tempStopIntervalCheck = true;
}
else {
this.tempStopIntervalCheck = false;
}
if (this.tempStopIntervalCheck)
return null;
if (!living)
return null;
let res;
try {
let strictQuality = false;
if (this.qualityRetry > 0) {
strictQuality = true;
}
if (this.qualityMaxRetry < 0) {
strictQuality = true;
}
if (isManualStart) {
strictQuality = false;
}
res = await getStream({
channelId: this.channelId,
quality: this.quality,
streamPriorities: this.streamPriorities,
sourcePriorities: this.sourcePriorities,
strictQuality: strictQuality,
cookie: this.auth,
formatPriorities: this.formatPriorities,
doubleScreen: this.doubleScreen,
});
}
catch (err) {
this.state = "idle";
throw err;
}
this.state = "recording";
const { currentStream: stream, sources: availableSources, streams: availableStreams } = res;
this.availableStreams = availableStreams.map((s) => s.desc);
this.availableSources = availableSources.map((s) => s.name);
this.usedStream = stream.name;
this.usedSource = stream.source;
// TODO: emit update event
let isEnded = false;
let isCutting = false;
const onEnd = (...args) => {
if (isCutting) {
isCutting = false;
return;
}
if (isEnded)
return;
isEnded = true;
this.emit("DebugLog", {
type: "common",
text: `ffmpeg end, reason: ${JSON.stringify(args, (_, v) => (v instanceof Error ? v.stack : v))}`,
});
const reason = args[0] instanceof Error ? args[0].message : String(args[0]);
this.recordHandle?.stop(reason);
};
const recorder = new FFMPEGRecorder({
url: stream.url,
outputOptions: ffmpegOutputOptions,
inputOptions: ffmpegInputOptions,
segment: this.segment ?? 0,
getSavePath: (opts) => getSavePath({ owner, title: opts.title ?? title, startTime: opts.startTime }),
disableDanma: this.disableProvideCommentsWhenRecording,
videoFormat: this.videoFormat ?? "auto",
headers: {
Cookie: this.auth,
},
}, onEnd, async () => {
const info = await getInfo(this.channelId);
return info;
});
const savePath = getSavePath({
owner,
title,
});
try {
ensureFolderExist(savePath);
}
catch (err) {
this.state = "idle";
throw err;
}
const handleVideoCreated = async ({ filename, title, cover }) => {
this.emit("videoFileCreated", { filename, cover });
if (title && this?.liveInfo) {
this.liveInfo.title = title;
}
if (cover && this?.liveInfo) {
this.liveInfo.cover = cover;
}
const extraDataController = recorder.getExtraDataController();
extraDataController?.setMeta({
room_id: this.channelId,
platform: provider?.id,
// liveStartTimestamp: liveInfo.startTime?.getTime(),
recordStopTimestamp: Date.now(),
title: title,
user_name: owner,
});
};
recorder.on("videoFileCreated", handleVideoCreated);
recorder.on("videoFileCompleted", ({ filename }) => {
this.emit("videoFileCompleted", { filename });
});
recorder.on("DebugLog", (data) => {
this.emit("DebugLog", data);
});
recorder.on("progress", (progress) => {
if (this.recordHandle) {
this.recordHandle.progress = progress;
}
this.emit("progress", progress);
});
const client = new DouYinDanmaClient(liveInfo.liveId, {
cookie: this.auth,
});
client.on("chat", (msg) => {
const extraDataController = recorder.getExtraDataController();
if (!extraDataController)
return;
const comment = {
type: "comment",
timestamp: Number(msg.eventTime) * 1000,
text: msg.content,
color: "#ffffff",
sender: {
uid: msg.user.id,
name: msg.user.nickName,
// avatar: msg.user.AvatarThumb.urlListList[0],
// extra: {
// level: msg.level,
// },
},
};
this.emit("Message", comment);
extraDataController.addMessage(comment);
});
client.on("gift", (msg) => {
const extraDataController = recorder.getExtraDataController();
if (!extraDataController)
return;
if (this.saveGiftDanma === false)
return;
const gift = {
type: "give_gift",
timestamp: Number(msg.common.createTime) > 9999999999
? Number(msg.common.createTime)
: Number(msg.common.createTime) * 1000,
name: msg.gift.name,
price: 1,
count: Number(msg.totalCount ?? 1),
color: "#ffffff",
sender: {
uid: msg.user.id,
name: msg.user.nickName,
// avatar: msg.ic,
// extra: {
// level: msg.level,
// },
},
};
this.emit("Message", gift);
extraDataController.addMessage(gift);
});
client.on("reconnect", (attempts) => {
this.emit("DebugLog", {
type: "common",
text: `danma has reconnect ${attempts}`,
});
});
// client.on("open", () => {
// console.log("open");
// });
// client.on("close", () => {
// console.log("close");
// });
// client.on("error", (err) => {
// console.log("error", err);
// });
// client.on("heartbeat", () => {
// // console.log("heartbeat");
// });
if (!this.disableProvideCommentsWhenRecording) {
client.connect();
}
const ffmpegArgs = recorder.getArguments();
recorder.run();
const cut = singleton(async () => {
if (!this.recordHandle)
return;
if (isCutting)
return;
isCutting = true;
await recorder.stop();
recorder.createCommand();
recorder.run();
});
const stop = singleton(async (reason) => {
if (!this.recordHandle)
return;
this.state = "stopping-record";
client.close();
try {
await recorder.stop();
}
catch (err) {
this.emit("DebugLog", {
type: "common",
text: `stop ffmpeg error: ${String(err)}`,
});
}
this.usedStream = undefined;
this.usedSource = undefined;
this.emit("RecordStop", { recordHandle: this.recordHandle, reason });
this.recordHandle = undefined;
this.liveInfo = undefined;
this.state = "idle";
});
this.recordHandle = {
id: genRecordUUID(),
stream: stream.name,
source: stream.source,
url: stream.url,
ffmpegArgs,
savePath: savePath,
stop,
cut,
};
this.emit("RecordStart", this.recordHandle);
return this.recordHandle;
};
export const provider = {
id: "DouYin",
name: "抖音",
siteURL: "https://live.douyin.com/",
matchURL(channelURL) {
// 支持 v.douyin.com 和 live.douyin.com
return /https?:\/\/(live|v)\.douyin\.com\//.test(channelURL);
},
async resolveChannelInfoFromURL(channelURL) {
if (!this.matchURL(channelURL))
return null;
let id;
if (channelURL.includes("v.douyin.com")) {
// 处理短链接
try {
id = await resolveShortURL(channelURL);
}
catch (err) {
throw new Error(`解析抖音短链接失败: ${err?.message}`);
}
}
else {
// 处理常规直播链接
id = path.basename(new URL(channelURL).pathname);
}
const info = await getInfo(id);
return {
id: info.roomId,
title: info.title,
owner: info.owner,
};
},
createRecorder(opts) {
return createRecorder({ providerId: provider.id, ...opts });
},
fromJSON(recorder) {
return defaultFromJSON(this, recorder);
},
setFFMPEGOutputArgs(args) {
ffmpegOutputOptions.splice(0, ffmpegOutputOptions.length, ...args);
},
};