Wait for dc buffer status low for all published packets (livekit#1691)

Author: lukasIO

.changeset/cuddly-ties-tease.md

@@ -0,0 +1,5 @@
+---
+"livekit-client": patch
+---
+
+Wait for dc buffer status low for all published packets

src/room/RTCEngine.ts

@@ -1251,7 +1251,6 @@ export default class RTCEngine extends (EventEmitter as new () => TypedEventEmit
         }),
       },
     });
-
     await this.sendDataPacket(packet, DataPacket_Kind.RELIABLE);
   }
 
@@ -1282,6 +1281,8 @@ export default class RTCEngine extends (EventEmitter as new () => TypedEventEmit
 
     const msg = packet.toBinary();
 
+    await this.waitForBufferStatusLow(kind);
+
     const dc = this.dataChannelForKind(kind);
     if (dc) {
       if (kind === DataPacket_Kind.RELIABLE) {

src/room/data-stream/outgoing/OutgoingDataStreamManager.ts

@@ -146,7 +146,6 @@ export default class OutgoingDataStreamManager {
       // Implement the sink
       async write(text) {
         for (const textByteChunk of splitUtf8(text, STREAM_CHUNK_SIZE)) {
-          await engine.waitForBufferStatusLow(DataPacket_Kind.RELIABLE);
           const chunk = new DataStream_Chunk({
             content: textByteChunk,
             streamId,
@@ -278,7 +277,6 @@ export default class OutgoingDataStreamManager {
         try {
           while (byteOffset < chunk.byteLength) {
             const subChunk = chunk.slice(byteOffset, byteOffset + STREAM_CHUNK_SIZE);
-            await engine.waitForBufferStatusLow(DataPacket_Kind.RELIABLE);
             const chunkPacket = new DataPacket({
               destinationIdentities,
               value: {