@bililive-tools/douyu-recorder
Version:
bililive-tools douyu recorder implemention
413 lines (412 loc) • 14.6 kB
JavaScript
import mitt from "mitt";
import { defaultFromJSON, defaultToJSON, genRecorderUUID, genRecordUUID, utils, createDownloader, } from "@bililive-tools/manager";
import { live } from "douyu-api";
import { getInfo, getStream } from "./stream.js";
import { getRoomInfo } from "./dy_api.js";
import { ensureFolderExist } from "./utils.js";
import { createDYClient } from "./dy_client/index.js";
import { giftMap, colorTab } from "./danma.js";
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,
cache: null,
availableStreams: [],
availableSources: [],
qualityRetry: opts.qualityRetry ?? 0,
useServerTimestamp: opts.useServerTimestamp ?? true,
state: "idle",
getChannelURL() {
return `https://www.douyu.com/${this.channelId}`;
},
checkLiveStatusAndRecord: utils.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,
});
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 = [];
const checkLiveStatusAndRecord = async function ({ getSavePath, banLiveId, isManualStart, }) {
// 如果已经在录制中，只在需要检查标题关键词时才获取最新信息
if (this.recordHandle != null) {
const shouldStop = await utils.checkTitleKeywordsWhileRecording(this, isManualStart, getInfo);
if (shouldStop) {
return null;
}
// 已经在录制中，直接返回
return this.recordHandle;
}
// 获取直播间信息
try {
const liveInfo = await getInfo(this.channelId);
this.liveInfo = liveInfo;
this.state = "idle";
}
catch (error) {
this.state = "check-error";
throw error;
}
const { living, owner, title, liveStartTime, recordStartTime } = this.liveInfo;
if (this.liveInfo.liveId === banLiveId) {
this.tempStopIntervalCheck = true;
}
else {
this.tempStopIntervalCheck = false;
}
if (this.tempStopIntervalCheck)
return null;
if (!living)
return null;
// 检查标题是否包含关键词
if (utils.checkTitleKeywordsBeforeRecord(title, this, isManualStart))
return null;
const qualityRetryLeft = (await this.cache.get("qualityRetryLeft")) ?? this.qualityRetry;
const strictQuality = utils.shouldUseStrictQuality(qualityRetryLeft, this.qualityRetry, isManualStart);
let res;
try {
res = await getStream({
channelId: this.channelId,
quality: this.quality,
source: this.source,
strictQuality,
onlyAudio: this.onlyAudio,
avoidEdgeCDN: true,
});
}
catch (err) {
if (qualityRetryLeft > 0)
await this.cache.set("qualityRetryLeft", qualityRetryLeft - 1);
this.state = "check-error";
throw err;
}
this.state = "recording";
const { currentStream: stream, sources: availableSources, streams: availableStreams } = res;
this.availableStreams = availableStreams.map((s) => s.name);
this.availableSources = availableSources.map((s) => s.name);
this.usedStream = stream.name;
this.usedSource = stream.source;
const onEnd = (...args) => {
if (isEnded)
return;
isEnded = true;
this.emit("DebugLog", {
type: "common",
text: `record 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);
};
let isEnded = false;
const downloader = createDownloader(this.recorderType, {
url: stream.url,
// @ts-ignore
outputOptions: ffmpegOutputOptions,
segment: this.segment ?? 0,
getSavePath: (opts) => getSavePath({
owner,
title: opts.title ?? title,
startTime: opts.startTime,
liveStartTime,
recordStartTime,
}),
disableDanma: this.disableProvideCommentsWhenRecording,
videoFormat: this.videoFormat ?? "auto",
debugLevel: this.debugLevel ?? "none",
onlyAudio: stream.onlyAudio,
}, onEnd, async () => {
const info = await getInfo(this.channelId);
return info;
});
const savePath = getSavePath({
owner,
title,
startTime: Date.now(),
liveStartTime,
recordStartTime,
});
try {
ensureFolderExist(savePath);
}
catch (err) {
this.state = "idle";
throw err;
}
const handleVideoCreated = async ({ filename, title, cover, rawFilename }) => {
this.emit("videoFileCreated", { filename, cover, rawFilename });
if (title && this?.liveInfo) {
this.liveInfo.title = title;
}
if (cover && this?.liveInfo) {
this.liveInfo.cover = cover;
}
const extraDataController = downloader.getExtraDataController();
extraDataController?.setMeta({
room_id: this.channelId,
platform: provider?.id,
liveStartTimestamp: this?.liveInfo?.liveStartTime?.getTime(),
// recordStopTimestamp: Date.now(),
title: title,
user_name: owner,
});
};
downloader.on("videoFileCreated", handleVideoCreated);
downloader.on("videoFileCompleted", ({ filename }) => {
this.emit("videoFileCompleted", { filename });
});
downloader.on("DebugLog", (data) => {
this.emit("DebugLog", data);
});
downloader.on("progress", (progress) => {
if (this.recordHandle) {
this.recordHandle.progress = progress;
}
this.emit("progress", progress);
});
const client = createDYClient(Number(this.channelId), {
notAutoStart: true,
});
client.on("message", (msg) => {
const extraDataController = downloader.getExtraDataController();
if (!extraDataController)
return;
switch (msg.type) {
case "chatmsg": {
// 某些情况下cst不存在，可能是其他平台发送的弹幕？
const timestamp = this.useServerTimestamp && msg.cst ? Number(msg.cst) : Date.now();
const comment = {
type: "comment",
timestamp: timestamp,
text: msg.txt,
color: colorTab[msg.col] ?? "#ffffff",
sender: {
uid: msg.uid,
name: msg.nn,
avatar: msg.ic,
extra: {
level: msg.level,
},
},
};
this.emit("Message", comment);
extraDataController.addMessage(comment);
break;
}
case "dgb": {
if (this.saveGiftDanma === false)
return;
const gift = {
type: "give_gift",
timestamp: Date.now(),
name: giftMap[msg.gfid]?.name ?? msg.gfn,
price: (giftMap[msg.gfid]?.pc ?? 0) / 100,
count: Number(msg.gfcnt),
color: "#ffffff",
sender: {
uid: msg.uid,
name: msg.nn,
avatar: msg.ic,
extra: {
level: msg.level,
},
},
extra: {
hits: Number(msg.hits),
},
};
this.emit("Message", gift);
extraDataController.addMessage(gift);
break;
}
// 开通钻粉
case "odfbc": {
if (this.saveGiftDanma === false)
return;
const gift = {
type: "give_gift",
timestamp: Date.now(),
name: "钻粉",
price: Number(msg.price) / 100,
count: 1,
color: "#ffffff",
sender: {
uid: msg.uid,
name: msg.nick,
// avatar: msg.ic,
// extra: {
// level: msg.level,
// },
},
// extra: {
// hits: Number(msg.hits),
// },
};
this.emit("Message", gift);
extraDataController.addMessage(gift);
break;
}
// 续费钻粉
case "rndfbc": {
if (this.saveGiftDanma === false)
return;
const gift = {
type: "give_gift",
timestamp: Date.now(),
name: "钻粉",
price: Number(msg.price) / 100,
count: 1,
color: "#ffffff",
sender: {
uid: msg.uid,
name: msg.nick,
// avatar: msg.ic,
// extra: {
// level: msg.level,
// },
},
// extra: {
// hits: Number(msg.hits),
// },
};
this.emit("Message", gift);
extraDataController.addMessage(gift);
break;
}
case "comm_chatmsg": {
if (this.saveSCDanma === false)
return;
switch (msg.btype) {
case "voiceDanmu": {
const comment = {
type: "super_chat",
timestamp: Date.now(),
text: msg?.chatmsg?.txt,
price: Number(msg.cprice) / 100,
sender: {
uid: msg.uid,
name: msg?.chatmsg?.nn,
avatar: msg?.chatmsg?.ic,
extra: {
level: msg?.chatmsg?.level,
},
},
};
this.emit("Message", comment);
extraDataController.addMessage(comment);
break;
}
}
break;
}
}
});
client.on("error", (err) => {
this.emit("DebugLog", { type: "common", text: String(err) });
});
if (!this.disableProvideCommentsWhenRecording) {
client.start();
}
const downloaderArgs = downloader.getArguments();
downloader.run();
// TODO: 需要一个机制防止空录制，比如检查文件的大小变化、ffmpeg 的输出、直播状态等
const cut = utils.singleton(async () => {
if (!this.recordHandle)
return;
downloader.cut();
});
const stop = utils.singleton(async (reason) => {
if (!this.recordHandle)
return;
this.state = "stopping-record";
try {
client.stop();
await downloader.stop();
}
catch (err) {
this.emit("DebugLog", {
type: "common",
text: `stop record 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.cache.set("qualityRetryLeft", this.qualityRetry);
});
this.recordHandle = {
id: genRecordUUID(),
stream: stream.name,
source: stream.source,
recorderType: downloader.type,
url: stream.url,
downloaderArgs,
savePath: savePath,
stop,
cut,
};
this.emit("RecordStart", this.recordHandle);
return this.recordHandle;
};
export const provider = {
id: "DouYu",
name: "斗鱼",
siteURL: "https://douyu.com/",
matchURL(channelURL) {
return /https?:\/\/(?:.*?\.)?douyu.com\//.test(channelURL);
},
async resolveChannelInfoFromURL(channelURL) {
if (!this.matchURL(channelURL))
return null;
const roomId = await live.parseRoomId(channelURL);
if (!roomId)
return null;
const roomInfo = await getRoomInfo(Number(roomId));
return {
id: roomId,
title: roomInfo.room.room_name,
owner: roomInfo.room.nickname,
avatar: roomInfo.room.avatar?.big,
};
},
createRecorder(opts) {
return createRecorder({ providerId: provider.id, ...opts });
},
fromJSON(recorder) {
return defaultFromJSON(this, recorder);
},
setFFMPEGOutputArgs(args) {
ffmpegOutputOptions.splice(0, ffmpegOutputOptions.length, ...args);
},
};