Minor ObjC API tweaks.

talk/build/build_ios_libs.sh

 #!/bin/bash
 #
 # libjingle
 # Copyright 2015 Google Inc.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
 #
 #  1. Redistributions of source code must retain the above copyright notice,
 #     this list of conditions and the following disclaimer.
@@ skipping 55 matching lines @@
 
 function build_webrtc {
   OUTPUT_DIR=$1
   FLAVOR=$2
   TARGET_ARCH=$3
   if [[ ${TARGET_ARCH} = 'arm' || ${TARGET_ARCH} = 'arm64' ]]; then
     FLAVOR="${FLAVOR}-iphoneos"
   else
     FLAVOR="${FLAVOR}-iphonesimulator"
   fi
-  export GYP_DEFINES="OS=ios target_arch=${TARGET_ARCH} clang_xcode=1"
+  export GYP_DEFINES="OS=ios target_arch=${TARGET_ARCH} use_objc_h264=1 \
+clang_xcode=1"
   export GYP_GENERATORS="ninja"
   export GYP_GENERATOR_FLAGS="output_dir=${OUTPUT_DIR}"
   webrtc/build/gyp_webrtc talk/build/merge_ios_libs.gyp
   if [[ ${USE_LEGACY_API} -eq 1 ]]; then
     ninja -C ${OUTPUT_DIR}/${FLAVOR} libjingle_peerconnection_objc_no_op
   else
     ninja -C ${OUTPUT_DIR}/${FLAVOR} webrtc_api_objc_no_op
   fi
   mkdir -p ${LIBRARY_BASE_DIR}/${TARGET_ARCH}
   mv ${OUTPUT_DIR}/${FLAVOR}/*.a ${LIBRARY_BASE_DIR}/${TARGET_ARCH}
 }
 
 # Build all the common architectures.
 build_webrtc "out_ios_arm" "Release" "arm"
 build_webrtc "out_ios_arm64" "Release" "arm64"
 build_webrtc "out_ios_ia32" "Release" "ia32"
 build_webrtc "out_ios_x86_64" "Release" "x64"
 
 popd
 
 # Export header files.
 ${EXPORT_HEADERS_SCRIPT} ${WEBRTC_BASE_DIR}/${LIBRARY_BASE_DIR} \
     ${USE_LEGACY_API}
 
 # Merge the libraries together.
 ${MERGE_SCRIPT} ${WEBRTC_BASE_DIR}/${LIBRARY_BASE_DIR}