Merge remote-tracking branch 'upstream/master' into osx_fixes

.travis.yml

@@ -0,0 +1,34 @@
+sudo: required
+language: generic
+dist: xenial 
+
+addons:
+  apt:
+    packages:
+      libc6-i386
+      libspeexdsp-dev
+      libsamplerate0-dev
+      sox
+      git
+
+install:
+    - export CODEC2DIR=${PWD}/codec2
+    - export LPCNETDIR=${PWD}
+    - export BUILDDIR=${PWD}/build_linux
+
+script:
+    # First build and install vanilla codec2 as we need -lcodec2 to build LPCNet
+    - git clone https://github.com/drowe67/codec2.git
+    - cd codec2 && git checkout brad-2020
+    - mkdir build_linux && cd build_linux && cmake .. && make VERBOSE=1 codec2
+    # OK, build and test LPCNet
+    - cd $LPCNETDIR && mkdir -p $BUILDDIR && cd $BUILDDIR 
+    - cmake -DCODEC2_BUILD_DIR=$CODEC2DIR/build_linux .. && make VERBOSE=1
+    - cd src && sox ../../wav/wia.wav -t raw -r 16000 - | ./lpcnet_enc -s | ./lpcnet_dec -s > /dev/null
+    # Re-build codec2 with LPCNet and test FreeDV 2020 support
+    - cd $CODEC2DIR/build_linux
+    - make clean
+    - cmake -DLPCNET_BUILD_DIR=$BUILDDIR ..
+    - make VERBOSE=1
+    - cd src
+    - ./freedv_tx 2020 $LPCNETDIR/wav/wia.wav - | ./freedv_rx 2020 - /dev/null