libmfx is only for i686

packages/ffmpeg.rb

@@ -31,8 +31,7 @@ class Ffmpeg < Package
   depends_on 'freetype'
   depends_on 'fribidi'
   depends_on 'gsm'
-  depends_on 'intel_media_driver' if ARCH == 'x86_64' && `grep -c 'GenuineIntel' /proc/cpuinfo`.to_i.positive?
-  depends_on 'intel_media_sdk' if ARCH == 'x86_64' && `grep -c 'GenuineIntel' /proc/cpuinfo`.to_i.positive?
+  depends_on 'intel_media_sdk' if ARCH == 'x86_64' && `grep -c 'GenuineIntel' /proc/cpuinfo`.to_i.positive? # This provides libmfx for x86_64
   depends_on 'jack'
   depends_on 'ladspa'
   depends_on 'libaom'
@@ -44,7 +43,7 @@ class Ffmpeg < Package
   depends_on 'libfdk_aac'
   depends_on 'libfrei0r'
   depends_on 'libiec61883'
-  depends_on 'libmfx' if ARCH == 'i686' || ARCH == 'x86_64'
+  depends_on 'libmfx' if ARCH == 'i686' && `grep -c 'GenuineIntel' /proc/cpuinfo`.to_i.positive?
   depends_on 'libmodplug'
   depends_on 'libmp3lame'
   depends_on 'libopencoreamr'

packages/libmfx.rb

@@ -4,9 +4,9 @@ class Libmfx < Package
   description 'Intel Media SDK dispatcher library'
   homepage 'https://github.com/lu-zero/mfx_dispatch/'
   version '1.25'
-  compatibility 'x86_64 i686'
+  compatibility 'i686'
   case ARCH
-  when 'i686', 'x86_64'
+  when 'i686'
     source_url 'https://github.com/lu-zero/mfx_dispatch/archive/1.25.tar.gz'
     source_sha256 '853c4555c800a262fedacc580d06c234c520a919e4497b50e555291d87579a42'
     depends_on 'libva'
@@ -14,11 +14,9 @@ class Libmfx < Package
 
   binary_url({
     i686: 'https://dl.bintray.com/chromebrew/chromebrew/libmfx-1.25-chromeos-i686.tar.xz',
-  x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/libmfx-1.25-chromeos-x86_64.tar.xz'
   })
   binary_sha256({
     i686: '3eab119d8be510a2786d31419c20c551a0629f3b8d8d4fa58a2fb31b3f66a960',
-  x86_64: '65246a1f81384d7b241800f406013a7e13920c82d9d136beb74a4edfd924dd59'
   })
 
   def self.build