diff --git a/media/libstagefright/moz.build b/media/libstagefright/moz.build
index 4362580fea7..2e0d2e428a9 100644
--- a/media/libstagefright/moz.build
+++ b/media/libstagefright/moz.build
@@ -21,6 +21,12 @@ elif CONFIG['OS_TARGET'] == 'Darwin':
     DEFINES['HAVE_SYS_UIO_H'] = True
     DEFINES['off64_t'] = 'off_t'
     LOCAL_INCLUDES += [ 'ports/darwin/include' ]
+elif CONFIG['OS_TARGET'] in ('DragonFly', 'FreeBSD', 'OpenBSD', 'NetBSD'):
+    if not CONFIG['OS_TARGET'] == 'NetBSD':
+        DEFINES['ENODATA'] = '-0x80000003'
+    DEFINES['HAVE_SYS_UIO_H'] = True
+    DEFINES['off64_t'] = 'off_t'
+    LOCAL_INCLUDES += [ 'ports/bsd/include' ]
 else:
     DEFINES['HAVE_SYS_UIO_H'] = True
     if CONFIG['OS_TARGET'] == 'Linux':
diff --git a/media/libstagefright/ports/bsd/include/byteswap.h b/media/libstagefright/ports/bsd/include/byteswap.h
new file mode 100644
index 00000000000..5bd379a8cfd
--- /dev/null
+++ b/media/libstagefright/ports/bsd/include/byteswap.h
@@ -0,0 +1,15 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+#ifndef BYTESWAP_H_
+#define BYTESWAP_H_
+
+#include <sys/endian.h>
+
+#ifdef __OpenBSD__
+#define bswap_16(x)	swap16(x)
+#else
+#define bswap_16(x)	bswap16(x)
+#endif
+
+#endif