From: stransky <stransky@redhat.com>
Date: Tue, 29 Aug 2023 12:43:00 +0000
Subject: Bug 1821629 [Pipewire/DMABuf] Don't create dmabuf backend if it's
 disabled r=ng,webrtc-reviewers

Depends on D172224

Differential Revision: https://phabricator.services.mozilla.com/D172229
Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/237d19fe96dd7d25b6a817415ee4e6854678d648
---
 .../desktop_capture/linux/wayland/shared_screencast_stream.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/modules/desktop_capture/linux/wayland/shared_screencast_stream.cc b/modules/desktop_capture/linux/wayland/shared_screencast_stream.cc
index 5e6a22175f..d1cd46ed1a 100644
--- a/modules/desktop_capture/linux/wayland/shared_screencast_stream.cc
+++ b/modules/desktop_capture/linux/wayland/shared_screencast_stream.cc
@@ -488,7 +488,7 @@ bool SharedScreenCastStreamPrivate::StartScreenCastStream(
     RTC_LOG(LS_ERROR) << "Unable to open PipeWire library";
     return false;
   }
-  if (!egl_dmabuf_) {
+  if (!egl_dmabuf_ && mozilla::gfx::IsDMABufEnabled()) {
     egl_dmabuf_ = EglDmaBuf::CreateDefault();
   }
 
@@ -1060,7 +1060,7 @@ bool SharedScreenCastStreamPrivate::ProcessDMABuffer(
 
   const uint n_planes = spa_buffer->n_datas;
 
-  if (!n_planes) {
+  if (!n_planes || !egl_dmabuf_) {
     return false;
   }