--- media/base/media_switches.h.orig	2024-10-16 21:31:33 UTC
+++ media/base/media_switches.h
@@ -331,13 +331,25 @@ MEDIA_EXPORT BASE_DECLARE_FEATURE(kPreloadMetadataSusp
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kPlaybackSpeedButton);
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kPreloadMediaEngagementData);
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kPreloadMetadataSuspend);
-#if BUILDFLAG(IS_LINUX)
+#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_BSD)
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kPulseaudioLoopbackForCast);
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kPulseaudioLoopbackForScreenShare);
+
+enum class AudioBackend {
+  kAuto,
+  kPulseAudio,
+  kSndio,
+  kAlsa
+};
+
+MEDIA_EXPORT BASE_DECLARE_FEATURE(kAudioBackend);
+MEDIA_EXPORT extern const base::FeatureParam<
+    AudioBackend>
+    kAudioBackendParam;
 #endif  // BUILDFLAG(IS_LINUX)
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kRecordMediaEngagementScores);
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kRecordWebAudioEngagement);
-#if BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_LINUX)
+#if BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_BSD)
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kReduceHardwareVideoDecoderBuffers);
 #endif  // BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_LINUX)
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kResumeBackgroundVideo);
@@ -352,7 +364,7 @@ MEDIA_EXPORT BASE_DECLARE_FEATURE(kUseFakeDeviceForMed
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kUseAndroidOverlayForSecureOnly);
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kUseDecoderStreamForWebRTC);
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kUseFakeDeviceForMediaStream);
-#if BUILDFLAG(IS_LINUX)
+#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_BSD)
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kVaapiVideoDecodeLinux);
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kVaapiVideoDecodeLinuxGL);
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kVaapiVideoEncodeLinux);
@@ -373,7 +385,7 @@ MEDIA_EXPORT BASE_DECLARE_FEATURE(kVSyncMjpegDecoding)
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kVaapiVp9SModeHWEncoding);
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kVSyncMjpegDecoding);
 #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)
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kV4L2FlatStatefulVideoDecoder);
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kV4L2H264TemporalLayerHWEncoding);
 #endif  // BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_LINUX)
@@ -513,7 +525,7 @@ MEDIA_EXPORT BASE_DECLARE_FEATURE(kUseGTFOOutOfProcess
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kUseGTFOOutOfProcessVideoDecoding);
 #endif  // BUILDFLAG(ALLOW_OOP_VIDEO_DECODER)
 
-#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
+#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_BSD)
 MEDIA_EXPORT BASE_DECLARE_FEATURE(kUseOutOfProcessVideoEncoding);
 #endif  // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)