From 525d90ce40a78393c3f257e27a5cc207972bbd42 Mon Sep 17 00:00:00 2001
From: cnderrauber <zengjie9004@gmail.com>
Date: Thu, 2 Nov 2023 22:07:21 +0800
Subject: [PATCH] Round start bitrate for svc (#920)

---
 .changeset/tricky-grapes-cheer.md |  5 +++++
 src/room/PCTransport.ts           | 10 ++++++----
 2 files changed, 11 insertions(+), 4 deletions(-)
 create mode 100644 .changeset/tricky-grapes-cheer.md

diff --git a/.changeset/tricky-grapes-cheer.md b/.changeset/tricky-grapes-cheer.md
new file mode 100644
index 0000000000..fc8ad6ce8a
--- /dev/null
+++ b/.changeset/tricky-grapes-cheer.md
@@ -0,0 +1,5 @@
+---
+'livekit-client': patch
+---
+
+Round start bitrate for svc
diff --git a/src/room/PCTransport.ts b/src/room/PCTransport.ts
index e6fb95ad95..4e6be9aecb 100644
--- a/src/room/PCTransport.ts
+++ b/src/room/PCTransport.ts
@@ -256,7 +256,9 @@ export default class PCTransport extends EventEmitter {
           for (const fmtp of media.fmtp) {
             if (fmtp.payload === codecPayload) {
               if (!fmtp.config.includes('x-google-start-bitrate')) {
-                fmtp.config += `;x-google-start-bitrate=${trackbr.maxbr * startBitrateForSVC}`;
+                fmtp.config += `;x-google-start-bitrate=${Math.round(
+                  trackbr.maxbr * startBitrateForSVC,
+                )}`;
               }
               if (!fmtp.config.includes('x-google-max-bitrate')) {
                 fmtp.config += `;x-google-max-bitrate=${trackbr.maxbr}`;
@@ -269,9 +271,9 @@ export default class PCTransport extends EventEmitter {
           if (!fmtpFound) {
             media.fmtp.push({
               payload: codecPayload,
-              config: `x-google-start-bitrate=${
-                trackbr.maxbr * startBitrateForSVC
-              };x-google-max-bitrate=${trackbr.maxbr}`,
+              config: `x-google-start-bitrate=${Math.round(
+                trackbr.maxbr * startBitrateForSVC,
+              )};x-google-max-bitrate=${trackbr.maxbr}`,
             });
           }