fix travis timeout

.travis.yml

@@ -14,5 +14,5 @@ install:
   - cd -
 
 script:
-  - xmake l ./scripts/test.lua
+  - travis_wait 60 xmake l ./scripts/test.lua
 

packages/f/ffmpeg/xmake.lua

@@ -20,7 +20,7 @@ package("ffmpeg")
     if is_plat("macosx") then
         add_frameworks("CoreFoundation", "Foundation", "CoreVideo", "CoreMedia", "AudioToolbox", "VideoToolbox", "Security")
     end
- 
+  
     on_install("linux", "macosx", function (package)
         local configs = {"--disable-ffmpeg", 
                          "--disable-ffplay",