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Implement more robust broadcast chunk header detection (#10006)

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This commit is contained in:
Michael Weimann
2023-01-31 09:48:30 +01:00
committed by GitHub
parent e9d723269f
commit 269d1622b9
2 changed files with 43 additions and 13 deletions
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test/voice-broadcast/audio/VoiceBroadcastRecorder-test.ts
+14 -4
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@@ -67,8 +67,10 @@ describe("VoiceBroadcastRecorder", () => {
describe("instance", () => {
const chunkLength = 30;
const headers1 = new Uint8Array([1, 2]);
const headers2 = new Uint8Array([3, 4]);
// 0... OpusHead
const headers1 = new Uint8Array([...Array(28).fill(0), 79, 112, 117, 115, 72, 101, 97, 100]);
// 0... OpusTags
const headers2 = new Uint8Array([...Array(28).fill(0), 79, 112, 117, 115, 84, 97, 103, 115]);
const chunk1 = new Uint8Array([5, 6]);
const chunk2a = new Uint8Array([7, 8]);
const chunk2b = new Uint8Array([9, 10]);
@@ -79,12 +81,16 @@ describe("VoiceBroadcastRecorder", () => {
let onChunkRecorded: (chunk: ChunkRecordedPayload) => void;
const simulateFirstChunk = (): void => {
// send headers in wrong order and multiple times to test robustness for that
voiceRecording.onDataAvailable(headers2);
voiceRecording.onDataAvailable(headers1);
voiceRecording.onDataAvailable(headers1);
voiceRecording.onDataAvailable(headers2);
// set recorder seconds to something greater than the test chunk length of 30
// @ts-ignore
voiceRecording.recorderSeconds = 42;
voiceRecording.onDataAvailable(chunk1);
voiceRecording.onDataAvailable(headers1);
};
const expectOnFirstChunkRecorded = (): void => {
@@ -155,7 +161,7 @@ describe("VoiceBroadcastRecorder", () => {
expect(voiceBroadcastRecorder.contentType).toBe(contentType);
});
describe("when the first page from recorder has been received", () => {
describe("when the first header from recorder has been received", () => {
beforeEach(() => {
voiceRecording.onDataAvailable(headers1);
});
@@ -163,7 +169,7 @@ describe("VoiceBroadcastRecorder", () => {
itShouldNotEmitAChunkRecordedEvent();
});
describe("when a second page from recorder has been received", () => {
describe("when the second header from recorder has been received", () => {
beforeEach(() => {
voiceRecording.onDataAvailable(headers1);
voiceRecording.onDataAvailable(headers2);
@@ -229,6 +235,10 @@ describe("VoiceBroadcastRecorder", () => {
// simulate a second chunk
voiceRecording.onDataAvailable(chunk2a);
// send headers again to test robustness for that
voiceRecording.onDataAvailable(headers2);
// add another 30 seconds for the next chunk
// @ts-ignore
voiceRecording.recorderSeconds = 72;