[ci] move homebrew packages to travis addons, skip brew update

diff --git a/.travis.yml b/.travis.yml
index 0473ba7..b799ce2 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -62,15 +62,17 @@ addons:
     - libfftw3-dev
     - sox
     - lcov
+  homebrew:
+    packages:
+    - sox
+    - ffmpeg
+    - libsndfile
+    - lcov
+    #update: true
 
 before_install:
    - |
      if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
-       brew update
-       brew install sox
-       brew install ffmpeg
-       brew install libsndfile
-       brew install lcov
        export PATH="$HOME/Library/Python/2.7/bin/:$PATH"
      fi;