From 19c15e2e908ce8c554a928b71c3cc6505331b1f6 Mon Sep 17 00:00:00 2001
From: Arun Raghavan <arun@asymptotic.io>
Date: Thu, 9 Jan 2025 15:28:53 -0500
Subject: [PATCH] meson: Correctly use fallback for webrtc-audio-processing

If system deps are not found, we need to fallback to
webrtc-audio-processing-2, not webrtc-audio-processing (i.e. 0.3).

Fixes: https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/4493
---
 meson.build | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/meson.build b/meson.build
index fe3efb5f8..5de0d53fc 100644
--- a/meson.build
+++ b/meson.build
@@ -449,9 +449,18 @@ else
     else
       webrtc_dep = dependency('webrtc-audio-processing',
         version : ['>= 0.2', '< 1.0'],
-        required : get_option('echo-cancel-webrtc'))
+        required : false)
       cdata.set('HAVE_WEBRTC', webrtc_dep.found())
-      summary({'WebRTC Echo Canceling < 1.0': webrtc_dep.found()}, bool_yn: true, section: 'Misc dependencies')
+      if webrtc_dep.found()
+        summary({'WebRTC Echo Canceling < 1.0': webrtc_dep.found()}, bool_yn: true, section: 'Misc dependencies')
+      else
+        # If deps are not found on the system but it's enabled, try to fallback to the subproject
+        webrtc_dep = dependency('webrtc-audio-processing-2',
+          version : ['>= 2.0' ],
+          required : get_option('echo-cancel-webrtc'))
+        cdata.set('HAVE_WEBRTC2', webrtc_dep.found())
+        summary({'WebRTC Echo Canceling > 2.0': webrtc_dep.found()}, bool_yn: true, section: 'Misc dependencies')
+      endif
     endif
   endif
 endif