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rebroadcast: fix bug where packet length was parsed as signed integer.

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This commit is contained in:
Koushik Dutta
2022-03-02 10:33:33 -08:00
parent 2782d8cc4d
commit e217b315c2
6 changed files with 36 additions and 9 deletions
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8
plugins/prebuffer-mixin/src/main.ts
View File

@@ -7,7 +7,7 @@ import { handleRebroadcasterClient, ParserOptions, ParserSession, startParserSes
import { createMpegTsParser, createFragmentedMp4Parser, StreamChunk, StreamParser } from '@scrypted/common/src/stream-parser';
import { AutoenableMixinProvider } from '@scrypted/common/src/autoenable-mixin-provider';
import { listenZeroSingleClient } from '@scrypted/common/src/listen-cluster';
import { parsePayloadTypes } from '@scrypted/common/src/sdp-utils';
import { parsePayloadTypes, parseTrackIds } from '@scrypted/common/src/sdp-utils';
import { createRtspParser, RtspClient, RtspServer } from '@scrypted/common/src/rtsp-server';
import { Duplex } from 'stream';
import net from 'net';
@@ -446,8 +446,10 @@ class PrebufferSession {
const sdpResponse = await rtspClient.describe();
const sdp = sdpResponse.body.toString().trim();
this.sdp = Promise.resolve(sdp);
await rtspClient.setup(0, '/audio');
await rtspClient.setup(2, '/video');
const { audio, video } = parseTrackIds(sdp);
// handle no audio?
await rtspClient.setup(0, audio);
await rtspClient.setup(2, video);
const socket = await rtspClient.play();
session = await startRFC4571Parser(socket, sdp, ffmpegInput.mediaStreamOptions, true, rbo);
}

4
plugins/prebuffer-mixin/src/rfc4571.ts
View File

@@ -70,11 +70,11 @@ export async function startRFC4571Parser(socket: net.Socket, sdp: string, mediaS
let length: number;
if (hasRstpPrefix) {
header = await readLength(socket, 4);
length = header.readInt16BE(2);
length = header.readUInt16BE(2);
}
else {
header = await readLength(socket, 2);
length = header.readInt16BE(0);
length = header.readUInt16BE(0);
}
const data = await readLength(socket, length);