From 4beafa38d546ab6c0bb423c12762f0c4568aa5ce Mon Sep 17 00:00:00 2001
From: Jan Grulich <grulja@gmail.com>
Date: Fri, 14 Apr 2023 13:11:25 +0200
Subject: [PATCH] PipeWire video capture: set device unique ID during
 initialization

This is what Firefox implementation relies on and I can see that also
the V4L2 implementation is doing the same.

Bug: webrtc:15087
Change-Id: I641062ba879b6ef83e31af79ecc9d06fdae54adb
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/301320
Commit-Queue: Jan Grulich <grulja@gmail.com>
Reviewed-by: Alexander Cooper <alcooper@chromium.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#39869}
---
 modules/video_capture/linux/video_capture_pipewire.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/modules/video_capture/linux/video_capture_pipewire.cc b/modules/video_capture/linux/video_capture_pipewire.cc
index c1e6aae5ea..99109e00e6 100644
--- a/modules/video_capture/linux/video_capture_pipewire.cc
+++ b/modules/video_capture/linux/video_capture_pipewire.cc
@@ -62,6 +62,10 @@ int32_t VideoCaptureModulePipeWire::Init(const char* deviceUniqueId) {
 
   node_id_ = id.value();
 
+  const int len = strlen(deviceUniqueId);
+  _deviceUniqueId = new (std::nothrow) char[len + 1];
+  memcpy(_deviceUniqueId, deviceUniqueId, len + 1);
+
   return 0;
 }