1 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. 2 # 3 # Use of this source code is governed by a BSD-style license 4 # that can be found in the LICENSE file in the root of the source 5 # tree. An additional intellectual property rights grant can be found 6 # in the file PATENTS. All contributing project authors may 7 # be found in the AUTHORS file in the root of the source tree. 8 9 import("//build/config/arm.gni") 10 import("//build/config/mips.gni") 11 import("//build_overrides/webrtc.gni") 12 13 declare_args() { 14 build_with_libjingle = true 15 16 # Disable this to avoid building the Opus audio codec. 17 rtc_include_opus = true 18 19 # Used to specify an external Jsoncpp include path when not compiling the 20 # library that comes with WebRTC (i.e. rtc_build_json == 0). 21 rtc_jsoncpp_root = "//third_party/jsoncpp/source/include" 22 23 # Used to specify an external OpenSSL include path when not compiling the 24 # library that comes with WebRTC (i.e. rtc_build_ssl == 0). 25 rtc_ssl_root = "" 26 27 # Selects fixed-point code where possible. 28 rtc_prefer_fixed_point = false 29 30 # Enable data logging. Produces text files with data logged within engines 31 # which can be easily parsed for offline processing. 32 rtc_enable_data_logging = false 33 34 # Enables the use of protocol buffers for debug recordings. 35 rtc_enable_protobuf = true 36 37 # Disable these to not build components which can be externally provided. 38 rtc_build_expat = true 39 rtc_build_json = true 40 rtc_build_libjpeg = true 41 rtc_build_libvpx = true 42 rtc_build_libyuv = true 43 rtc_build_openmax_dl = true 44 rtc_build_opus = true 45 rtc_build_ssl = true 46 47 # Disable by default. 48 rtc_have_dbus_glib = false 49 50 # Enable to use the Mozilla internal settings. 51 build_with_mozilla = false 52 53 rtc_enable_android_opensl = false 54 55 # Link-Time Optimizations. 56 # Executes code generation at link-time instead of compile-time. 57 # https://gcc.gnu.org/wiki/LinkTimeOptimization 58 rtc_use_lto = false 59 60 if (build_with_libjingle) { 61 rtc_include_tests = false 62 rtc_restrict_logging = true 63 } else { 64 rtc_include_tests = true 65 rtc_restrict_logging = false 66 } 67 68 if (is_ios) { 69 rtc_build_libjpeg = false 70 rtc_enable_protobuf = false 71 } 72 73 if (current_cpu == "arm") { 74 rtc_prefer_fixed_point = true 75 } 76 77 # TODO(ljubomir): Unset rtc_use_openmax_dl for mips64el once mips64el gets 78 # supported in GN (since openmax_dl is not supported for mips64el). 79 if (!is_ios && (current_cpu != "arm" || arm_version >= 7)) { 80 rtc_use_openmax_dl = true 81 } else { 82 rtc_use_openmax_dl = false 83 } 84 85 # Determines whether NEON code will be built. 86 rtc_build_with_neon = 87 (current_cpu == "arm" && (arm_use_neon || arm_optionally_use_neon)) || 88 current_cpu == "arm64" 89 90 # Enable this to use HW H.264 encoder/decoder on iOS PeerConnections. 91 # Enabling this may break interop with Android clients that support H264. 92 rtc_use_objc_h264 = false 93 94 # Enable this to build H.264 encoder/decoder using third party libraries. 95 # Encoding uses OpenH264 and decoding uses FFmpeg. Because of this, OpenH264 96 # and FFmpeg have to be correctly enabled separately. 97 # - use_openh264=true is required for OpenH264 targets to be defined. 98 # - ffmpeg_branding="Chrome" is one way to support H.264 decoding in FFmpeg. 99 # FFmpeg can be built with/without H.264 support, see 'ffmpeg_branding'. 100 # Without it, it compiles but H264DecoderImpl fails to initialize. 101 # CHECK THE OPENH264, FFMPEG AND H.264 LICENSES/PATENTS BEFORE BUILDING. 102 # http://www.openh264.org, https://www.ffmpeg.org/ 103 use_third_party_h264 = false # TODO(hbos): To be used in follow-up CL(s). 104 } 105 106 # Make it possible to provide custom locations for some libraries (move these 107 # up into declare_args should we need to actually use them for the GN build). 108 rtc_libvpx_dir = "//third_party/libvpx_new" 109 rtc_libyuv_dir = "//third_party/libyuv" 110 rtc_opus_dir = "//third_party/opus" 111
