--- media/base/media_switches.cc.orig	2024-08-26 12:06:38 UTC
+++ media/base/media_switches.cc
@@ -21,7 +21,7 @@
 #include "ui/gl/gl_features.h"
 #include "ui/gl/gl_utils.h"
 
-#if BUILDFLAG(IS_LINUX)
+#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_BSD)
 #include "base/cpu.h"
 #endif
 
@@ -368,8 +368,8 @@ BASE_FEATURE(kMacLoopbackAudioForScreenShare,
              "MacLoopbackAudioForScreenShare",
              base::FEATURE_DISABLED_BY_DEFAULT);
 #endif  // BUILDFLAG(IS_MAC)
-
-#if BUILDFLAG(IS_LINUX)
+ 
+#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_BSD)
 // Enables system audio mirroring using pulseaudio.
 BASE_FEATURE(kPulseaudioLoopbackForCast,
              "PulseaudioLoopbackForCast",
@@ -379,6 +379,28 @@ BASE_FEATURE(kPulseaudioLoopbackForCast,
 BASE_FEATURE(kPulseaudioLoopbackForScreenShare,
              "PulseaudioLoopbackForScreenShare",
              base::FEATURE_DISABLED_BY_DEFAULT);
+
+BASE_FEATURE(kAudioBackend,
+             "AudioBackend",
+             base::FEATURE_ENABLED_BY_DEFAULT);
+
+constexpr base::FeatureParam<AudioBackend>::Option
+    kAudioBackendOptions[] = {
+        {AudioBackend::kAuto,
+         "auto"},
+        {AudioBackend::kPulseAudio, "pulseaudio"},
+        {AudioBackend::kSndio, "sndio"},
+        {AudioBackend::kAlsa, "alsa"}};
+
+const base::FeatureParam<AudioBackend>
+    kAudioBackendParam{
+        &kAudioBackend, "audio-backend",
+#if BUILDFLAG(IS_OPENBSD)
+        AudioBackend::kSndio,
+#elif BUILDFLAG(IS_FREEBSD)
+        AudioBackend::kAuto,
+#endif
+        &kAudioBackendOptions};
 #endif  // BUILDFLAG(IS_LINUX)
 
 // When enabled, MediaCapabilities will check with GPU Video Accelerator
@@ -676,7 +698,7 @@ BASE_FEATURE(kFeatureManagementLiveTranslateCrOS,
 // Show toolbar button that opens dialog for controlling media sessions.
 BASE_FEATURE(kGlobalMediaControls,
              "GlobalMediaControls",
-#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX)
+#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_BSD)
              base::FEATURE_ENABLED_BY_DEFAULT
 #else
              base::FEATURE_DISABLED_BY_DEFAULT
@@ -704,7 +726,7 @@ BASE_FEATURE(kGlobalMediaControlsUpdatedUI,
 // If enabled, users can request Media Remoting without fullscreen-in-tab.
 BASE_FEATURE(kMediaRemotingWithoutFullscreen,
              "MediaRemotingWithoutFullscreen",
-#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX)
+#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_BSD)
              base::FEATURE_ENABLED_BY_DEFAULT
 #else
              base::FEATURE_DISABLED_BY_DEFAULT
@@ -716,7 +738,7 @@ BASE_FEATURE(kMediaRemotingWithoutFullscreen,
 BASE_FEATURE(kGlobalMediaControlsPictureInPicture,
              "GlobalMediaControlsPictureInPicture",
 #if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX) || \
-    BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_CHROMEOS_LACROS)
+    BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_CHROMEOS_LACROS) || BUILDFLAG(IS_BSD)
              base::FEATURE_ENABLED_BY_DEFAULT
 #else
              base::FEATURE_DISABLED_BY_DEFAULT
@@ -745,7 +767,7 @@ BASE_FEATURE(kUnifiedAutoplay,
              "UnifiedAutoplay",
              base::FEATURE_ENABLED_BY_DEFAULT);
 
-#if BUILDFLAG(IS_LINUX)
+#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_BSD)
 // Enable vaapi video decoding on linux. This is already enabled by default on
 // chromeos, but needs an experiment on linux.
 BASE_FEATURE(kVaapiVideoDecodeLinux,
@@ -836,7 +858,7 @@ BASE_FEATURE(kVaapiVp9SModeHWEncoding,
              "VaapiVp9SModeHWEncoding",
              base::FEATURE_ENABLED_BY_DEFAULT);
 #endif  // defined(ARCH_CPU_X86_FAMILY) && BUILDFLAG(IS_CHROMEOS)
-#if BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_LINUX)
+#if BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_BSD)
 // Enables the new V4L2StatefulVideoDecoder instead of V4L2VideoDecoder.
 // Owners: frkoenig@chromium.org, mcasas@chromium.org
 // Expiry: When the |V4L2FlatVideoDecoder| flag handles stateful decoding on
@@ -963,7 +985,7 @@ BASE_FEATURE(kLiveCaptionUseWaitK,
 // Live Caption can be used in multiple languages, as opposed to just English.
 BASE_FEATURE(kLiveCaptionMultiLanguage,
              "LiveCaptionMultiLanguage",
-#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX)
+#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_BSD)
              base::FEATURE_ENABLED_BY_DEFAULT
 #else
              base::FEATURE_DISABLED_BY_DEFAULT
@@ -993,7 +1015,7 @@ BASE_FEATURE(kLiveCaptionWebAudio,
 // Live Translate translates captions generated by Live Caption.
 BASE_FEATURE(kLiveTranslate,
              "LiveTranslate",
-#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX)
+#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_BSD)
              base::FEATURE_ENABLED_BY_DEFAULT
 #else
              base::FEATURE_DISABLED_BY_DEFAULT
@@ -1468,7 +1490,7 @@ BASE_FEATURE(kUseGTFOOutOfProcessVideoDecoding,
              base::FEATURE_DISABLED_BY_DEFAULT);
 #endif  // BUILDFLAG(ALLOW_OOP_VIDEO_DECODER)
 
-#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
+#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_BSD)
 // Spawn utility processes to perform hardware encode acceleration instead of
 // using the GPU process.
 BASE_FEATURE(kUseOutOfProcessVideoEncoding,
@@ -1548,7 +1570,7 @@ BASE_FEATURE(kRecordWebAudioEngagement,
              "RecordWebAudioEngagement",
              base::FEATURE_ENABLED_BY_DEFAULT);
 
-#if BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_LINUX)
+#if BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_BSD)
 // Reduces the number of buffers needed in the output video frame pool to
 // populate the Renderer pipeline for hardware accelerated VideoDecoder in
 // non-low latency scenarios.