update ffmpeg

+Pod::Spec.new do |s|
+  s.name         = "FFmpeg4ijkplayer-ios-bin"
+
+  # <ijkplayer-tag> - rev.<revision> - <FFmpeg hash>
+  s.version      = "0.3.1-build-20150915"
+  s.summary      = "FFmpeg n2.7 build for ijkplayer on iOS platform."
+  s.homepage     = "https://github.com/Bilibili/FFmpeg4ijkplayer-ios-bin"
+
+  # license file extension must be txt
+  s.license      = { :type => 'LGPLv2.1+', :file => 'COPYING.LGPLv2.1.txt' }
+  s.author       = { "Zhang Rui" => "bbcallen@gmail.com" }
+
+  s.platform     = :ios, '6.0'
+
+  s.source       = { :git => "https://github.com/boxfish-project/FFmpeg4ijkplayer-ios-bin.git", :tag => s.version }
+
+  s.requires_arc = false
+  s.libraries    = 'z', 'bz2'
+
+  s.subspec 'ffmpeg' do |ss|
+    ss.source_files         = 'include/**/*.h'
+    ss.public_header_files  = 'include/**/*.h'
+    ss.header_mappings_dir  = 'include'
+    ss.vendored_libraries   = 'lib/**/*.a'
+  end
+
+end

@@ -91,7 +91,7 @@ end
 end
 
   s.subspec 'ijksdl' do |ss|
-    ss.dependency 'FFmpeg4ijkplayer-ios-bin', '0.3.1-build-20150911'
+    ss.dependency 'FFmpeg4ijkplayer-ios-bin', '0.3.1-build-20150915'
 
     ss.source_files         = 'ijkmedia/ijksdl/**/*.{c,h}'
     ss.private_header_files = 'ijkmedia/ijksdl/**/*.h'