├── .editorconfig ├── .gitignore ├── LICENSE-APACHE ├── LICENSE-MIT ├── LICENSE-THIRD-PARTY ├── README.md ├── RELEASING.md ├── build.gradle ├── copy-webrtc.sh ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── libs ├── arm64-v8a │ └── libjingle_peerconnection_so.so ├── armeabi-v7a │ └── libjingle_peerconnection_so.so ├── libwebrtc.jar ├── x86 │ └── libjingle_peerconnection_so.so └── x86_64 │ └── libjingle_peerconnection_so.so ├── settings.gradle └── src └── main ├── AndroidManifest.xml └── java └── ch └── threema └── webrtc └── NothingToSeeHere.java /.editorconfig: -------------------------------------------------------------------------------- 1 | # editorconfig.org 2 | 3 | root = true 4 | 5 | [*] 6 | end_of_line = lf 7 | insert_final_newline = true 8 | trim_trailing_whitespace = true 9 | 10 | [*.java] 11 | charset = utf-8 12 | indent_style = space 13 | indent_size = 4 14 | 15 | [*.yml] 16 | indent_style = space 17 | indent_size = 2 18 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Vim 2 | *.swp 3 | 4 | # IntelliJ 5 | *.iml 6 | .idea 7 | 8 | # Gradle 9 | .gradle 10 | local.properties 11 | 12 | # Java 13 | build/ 14 | -------------------------------------------------------------------------------- /LICENSE-APACHE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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All rights reserved. 14 | 15 | Redistribution and use in source and binary forms, with or without 16 | modification, are permitted provided that the following conditions are 17 | met: 18 | 19 | * Redistributions of source code must retain the above copyright 20 | notice, this list of conditions and the following disclaimer. 21 | 22 | * Redistributions in binary form must reproduce the above copyright 23 | notice, this list of conditions and the following disclaimer in 24 | the documentation and/or other materials provided with the 25 | distribution. 26 | 27 | * Neither the name of Google nor the names of its contributors may 28 | be used to endorse or promote products derived from this software 29 | without specific prior written permission. 30 | 31 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 34 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 | HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 36 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 37 | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 38 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 39 | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 40 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 41 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 42 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # WebRTC Build for Android 2 | 3 | [![License](https://img.shields.io/badge/license-MIT%20%2F%20Apache%202.0-blue.svg)](https://github.com/threema-ch/webrtc-android) 4 | 5 | This is a WebRTC build with Java bindings packaged for Android. 6 | 7 | > :warning: **Warning:** This build of WebRTC contains [patches specific to 8 | > Threema][patches] (see section "Patches / Build config" below). Certain 9 | > aspects (for example audio codecs, RTP header extensions or ciphersuite 10 | > selection) may behave differently than stock WebRTC and you might run into 11 | > compatibility issues in some cases. We offer no support for this package 12 | > outside of Threema. If you need help with WebRTC, try asking in the 13 | > [discuss-webrtc mailing list][discuss-webrtc] or on StackOverflow. 14 | 15 | [patches]: https://github.com/threema-ch/webrtc-build-docker/tree/master/patches 16 | [discuss-webrtc]: https://groups.google.com/g/discuss-webrtc 17 | 18 | 19 | ## Installing 20 | 21 | This package is available on Maven Central (starting with version 91.0.1). It 22 | includes the WebRTC PeerConnection build for ARM and x86, both 32 and 64 bit 23 | builds. 24 | 25 | Gradle: 26 | 27 | ```groovy 28 | compile 'ch.threema:webrtc-android:134.0.0' 29 | ``` 30 | 31 | Maven: 32 | 33 | ```xml 34 | 35 | ch.threema 36 | webrtc-android 37 | 134.0.0 38 | pom 39 | 40 | ``` 41 | 42 | 43 | ## Target Commits 44 | 45 | These are the target commits for the releases: 46 | 47 | - v134.0.0 [`8d78f5de6c27b2c793039989ea381f1428fb0100`](https://webrtc.googlesource.com/src.git/+/8d78f5de6c27b2c793039989ea381f1428fb0100) 48 | - v123.0.0 [`41b1493ddb5d98e9125d5cb002fd57ce76ebd8a7`](https://webrtc.googlesource.com/src.git/+/41b1493ddb5d98e9125d5cb002fd57ce76ebd8a7) 49 | - v120.0.0 [`b0cc68e61205fd11a7256a6e85307ec17ad95790`](https://webrtc.googlesource.com/src.git/+/b0cc68e61205fd11a7256a6e85307ec17ad95790) 50 | - v114.0.0 [`a624ee1be7a11e795a849edb2a27dc1137d2b63d`](https://webrtc.googlesource.com/src.git/+/a624ee1be7a11e795a849edb2a27dc1137d2b63d) 51 | - v110.0.0 [`218b56e516386cd57c7513197528c3124bcd7ef3`](https://webrtc.googlesource.com/src.git/+/218b56e516386cd57c7513197528c3124bcd7ef3) 52 | - v108.0.0 [`93081d594f7efff72958a79251f53731b99e902b`](https://webrtc.googlesource.com/src.git/+/93081d594f7efff72958a79251f53731b99e902b) 53 | - v100.0.0 [`ffd9187dc0d9211ad52173bf0daa5001ca7d45ee`](https://webrtc.googlesource.com/src.git/+/ffd9187dc0d9211ad52173bf0daa5001ca7d45ee) 54 | - v91.0.1 [`3e0c60ba4ef28a9f26fe991e5eec3150402c7dd3`](https://webrtc.googlesource.com/src.git/+/3e0c60ba4ef28a9f26fe991e5eec3150402c7dd3) 55 | - v91.0.0 [`3e0c60ba4ef28a9f26fe991e5eec3150402c7dd3`](https://webrtc.googlesource.com/src.git/+/3e0c60ba4ef28a9f26fe991e5eec3150402c7dd3) 56 | - v84.2.1 [`963cc1ef1336b52ca27742beb28bfbc211ed54d0`](https://webrtc.googlesource.com/src.git/+/963cc1ef1336b52ca27742beb28bfbc211ed54d0) 57 | - v84.2.0 [`963cc1ef1336b52ca27742beb28bfbc211ed54d0`](https://webrtc.googlesource.com/src.git/+/963cc1ef1336b52ca27742beb28bfbc211ed54d0) 58 | - v84.1.1 [`963cc1ef1336b52ca27742beb28bfbc211ed54d0`](https://webrtc.googlesource.com/src.git/+/963cc1ef1336b52ca27742beb28bfbc211ed54d0) 59 | - v84.1.0 [`a740523c6bb2630114937449cc97b844891cebaf`](https://webrtc.googlesource.com/src.git/+/a740523c6bb2630114937449cc97b844891cebaf) 60 | - v84.0.0 [`a740523c6bb2630114937449cc97b844891cebaf`](https://webrtc.googlesource.com/src.git/+/a740523c6bb2630114937449cc97b844891cebaf) 61 | - v83.1.1 [`e2ad989961f3de12e2c352521fcfdad6e66b6359`](https://webrtc.googlesource.com/src.git/+/e2ad989961f3de12e2c352521fcfdad6e66b6359) 62 | - v83.1.0 [`e2ad989961f3de12e2c352521fcfdad6e66b6359`](https://webrtc.googlesource.com/src.git/+/e2ad989961f3de12e2c352521fcfdad6e66b6359) 63 | - v83.0.0 [`e2ad989961f3de12e2c352521fcfdad6e66b6359`](https://webrtc.googlesource.com/src.git/+/e2ad989961f3de12e2c352521fcfdad6e66b6359) 64 | - v81.1.0 [`76725a6a631c4f21db1f5560eece2feb78b20aca`](https://webrtc.googlesource.com/src.git/+/76725a6a631c4f21db1f5560eece2feb78b20aca) 65 | - v81.0.0 [`64649176f542fb919628e4f2149ccd1946769786`](https://webrtc.googlesource.com/src.git/+/64649176f542fb919628e4f2149ccd1946769786) 66 | - v80.0.0 [`7a0e44c1a84fb4ed57a6701cfc8093756c37af6f`](https://webrtc.googlesource.com/src.git/+/7a0e44c1a84fb4ed57a6701cfc8093756c37af6f) 67 | - v79.0.0 [`b484ec0082948ae086c2ba4142b4d2bf8bc4dd4b`](https://webrtc.googlesource.com/src.git/+/b484ec0082948ae086c2ba4142b4d2bf8bc4dd4b) 68 | - v78.0.0 [`0b2302e5e0418b6716fbc0b3927874fd3a842caf`](https://webrtc.googlesource.com/src.git/+/0b2302e5e0418b6716fbc0b3927874fd3a842caf) 69 | - v77.0.0 [`ad73985e75684cb4ac4dadb9d3d86ad0d66612a0`](https://webrtc.googlesource.com/src.git/+/ad73985e75684cb4ac4dadb9d3d86ad0d66612a0) 70 | - v76.0.0 [`9863f3d246e2da7a2e1f42bbc5757f6af5ec5682`](https://webrtc.googlesource.com/src.git/+/9863f3d246e2da7a2e1f42bbc5757f6af5ec5682) 71 | 72 | 73 | ## Patches / Build config 74 | 75 | The builds are created using [webrtc-build-docker](https://github.com/threema-ch/webrtc-build-docker). 76 | 77 | **v134.0.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1 debuggable_apks=false enable_libaom=false rtc_enable_protobuf=false rtc_include_dav1d_in_internal_decoder_factory=false`): 78 | 79 | 6261 2025-03-19 20:51 /patches/disable-dtmf-and-comfort-noise.patch 80 | 9723 2025-03-19 20:52 /patches/disable-unused-audio-codecs.patch 81 | 850 2025-03-19 20:54 /patches/dont-leak-video-orientation.patch 82 | 909 2025-03-19 20:55 /patches/dtls-cipher-suites.patch 83 | 942 2025-03-19 20:56 /patches/enable-cbr-by-default.patch 84 | 9209 2025-03-19 21:11 /patches/expose-certificate-fingerprint.patch 85 | 8365 2025-03-19 21:22 /patches/expose-crypto-option-aes-128-sha1-80.patch 86 | 3164 2025-03-19 21:23 /patches/expose-video-capturer-state.patch 87 | 103096 2025-03-20 17:05 /patches/group-call-frame-crypto.patch 88 | 2454 2025-03-19 21:28 /patches/only-resolve-uuid-mdns-hostnames.patch 89 | 2574 2025-03-19 21:32 /patches/srtp-cipher-suites.patch 90 | 91 | **v123.0.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false rtc_include_dav1d_in_internal_decoder_factory=false rtc_include_ilbc=false`): 92 | 93 | 6002 2024-03-18 19:39 /patches/disable-dtmf-and-comfort-noise.patch 94 | 11843 2024-03-18 15:24 /patches/disable-unused-audio-codecs.patch 95 | 850 2024-03-18 15:25 /patches/dont-leak-video-orientation.patch 96 | 909 2024-03-18 19:39 /patches/dtls-cipher-suites.patch 97 | 942 2024-03-18 15:26 /patches/enable-cbr-by-default.patch 98 | 9564 2024-03-18 15:26 /patches/expose-certificate-fingerprint.patch 99 | 8477 2024-03-18 15:27 /patches/expose-crypto-option-aes-128-sha1-80.patch 100 | 3164 2024-03-18 15:27 /patches/expose-video-capturer-state.patch 101 | 101862 2024-03-18 19:39 /patches/group-call-frame-crypto.patch 102 | 2456 2024-03-18 19:39 /patches/only-resolve-uuid-mdns-hostnames.patch 103 | 2574 2024-03-18 19:39 /patches/srtp-cipher-suites.patch 104 | 105 | **v120.0.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false rtc_include_dav1d_in_internal_decoder_factory=false rtc_include_ilbc=false`): 106 | 107 | 6002 2023-12-14 16:31 /patches/disable-dtmf-and-comfort-noise.patch 108 | 11843 2023-06-01 15:41 /patches/disable-unused-audio-codecs.patch 109 | 850 2023-12-14 16:31 /patches/dont-leak-video-orientation.patch 110 | 909 2023-12-14 16:31 /patches/dtls-cipher-suites.patch 111 | 942 2023-06-01 15:41 /patches/enable-cbr-by-default.patch 112 | 9564 2023-12-14 16:31 /patches/expose-certificate-fingerprint.patch 113 | 8477 2023-12-14 16:31 /patches/expose-crypto-option-aes-128-sha1-80.patch 114 | 3164 2023-12-14 16:31 /patches/expose-video-capturer-state.patch 115 | 1752 2023-12-14 16:31 /patches/force-dtls-1_2.patch 116 | 01870 2023-12-14 16:31 /patches/group-call-frame-crypto.patch 117 | 2456 2023-12-14 16:31 /patches/only-resolve-uuid-mdns-hostnames.patch 118 | 2574 2023-12-14 16:31 /patches/srtp-cipher-suites.patch 119 | 120 | **v114.0.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false rtc_include_dav1d_in_internal_decoder_factory=false rtc_include_ilbc=false`): 121 | 122 | 6024 2023-06-27 09:24 /patches/disable-dtmf-and-comfort-noise.patch 123 | 11843 2023-06-27 09:24 /patches/disable-unused-audio-codecs.patch 124 | 850 2023-06-27 09:24 /patches/dont-leak-video-orientation.patch 125 | 909 2023-06-27 09:24 /patches/dtls-cipher-suites.patch 126 | 942 2023-06-27 09:24 /patches/enable-cbr-by-default.patch 127 | 9564 2023-06-27 09:24 /patches/expose-certificate-fingerprint.patch 128 | 8477 2023-06-27 09:24 /patches/expose-crypto-option-aes-128-sha1-80.patch 129 | 3628 2023-06-27 09:24 /patches/expose-video-capturer-state.patch 130 | 1752 2023-06-27 09:24 /patches/force-dtls-1_2.patch 131 | 101860 2023-06-27 09:24 /patches/group-call-frame-crypto.patch 132 | 2456 2023-06-27 09:24 /patches/only-resolve-uuid-mdns-hostnames.patch 133 | 2574 2023-06-27 09:24 /patches/srtp-cipher-suites.patch 134 | 135 | **v110.0.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false rtc_include_dav1d_in_internal_decoder_factory=false rtc_include_ilbc=false`): 136 | 137 | 6024 2023-02-21 19:59 /patches/disable-dtmf-and-comfort-noise.patch 138 | 11835 2023-02-21 19:59 /patches/disable-unused-audio-codecs.patch 139 | 815 2021-04-08 19:16 /patches/dont-leak-video-orientation.patch 140 | 687 2022-08-08 09:22 /patches/dtls-cipher-suites.patch 141 | 818 2021-04-08 19:16 /patches/enable-cbr-by-default.patch 142 | 8831 2021-04-08 19:16 /patches/expose-crypto-option-aes-128-sha1-80.patch 143 | 3628 2021-04-12 13:32 /patches/expose-video-capturer-state.patch 144 | 1750 2021-04-08 19:16 /patches/force-dtls-1_2.patch 145 | 80250 2023-02-21 19:59 /patches/group-call-frame-crypto.patch 146 | 2461 2022-12-15 22:49 /patches/only-resolve-uuid-mdns-hostnames.patch 147 | 2574 2022-03-30 21:26 /patches/srtp-cipher-suites.patch 148 | 149 | **v108.0.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false`): 150 | 151 | 5872 2022-12-15 22:49 /patches/disable-dtmf-and-comfort-noise.patch 152 | 16587 2022-12-15 22:49 /patches/disable-unused-audio-codecs.patch 153 | 815 2021-04-08 19:16 /patches/dont-leak-video-orientation.patch 154 | 687 2022-08-08 09:22 /patches/dtls-cipher-suites.patch 155 | 818 2021-04-08 19:16 /patches/enable-cbr-by-default.patch 156 | 8831 2021-04-08 19:16 /patches/expose-crypto-option-aes-128-sha1-80.patch 157 | 3628 2021-04-12 13:32 /patches/expose-video-capturer-state.patch 158 | 1750 2021-04-08 19:16 /patches/force-dtls-1_2.patch 159 | 80867 2022-12-15 22:49 /patches/group-call-frame-crypto.patch 160 | 2461 2022-12-15 22:49 /patches/only-resolve-uuid-mdns-hostnames.patch 161 | 2574 2022-03-30 21:26 /patches/srtp-cipher-suites.patch 162 | 163 | **v100.0.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false`): 164 | 165 | 5934 2022-04-07 04:42 patches/disable-dtmf-and-comfort-noise.patch 166 | 16331 2022-04-07 04:42 patches/disable-unused-audio-codecs.patch 167 | 815 2022-04-06 13:45 patches/dont-leak-video-orientation.patch 168 | 687 2022-04-07 04:42 patches/dtls-cipher-suites.patch 169 | 818 2022-04-06 13:45 patches/enable-cbr-by-default.patch 170 | 8831 2022-04-06 13:45 patches/expose-crypto-option-aes-128-sha1-80.patch 171 | 3628 2022-04-06 13:45 patches/expose-video-capturer-state.patch 172 | 1750 2022-04-06 13:45 patches/force-dtls-1_2.patch 173 | 2453 2022-04-06 13:45 patches/only-resolve-uuid-mdns-hostnames.patch 174 | 2574 2022-04-06 13:45 patches/srtp-cipher-suites.patch 175 | 176 | **v94.0.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false`): 177 | 178 | 5162 2021-04-09 13:22 patches/disable-dtmf-and-comfort-noise.patch 179 | 15479 2021-04-09 13:00 patches/disable-unused-audio-codecs.patch 180 | 815 2021-04-09 13:00 patches/dont-leak-video-orientation.patch 181 | 743 2021-04-09 13:00 patches/dtls-cipher-suites.patch 182 | 818 2021-04-09 13:00 patches/enable-cbr-by-default.patch 183 | 8831 2021-04-09 13:00 patches/expose-crypto-option-aes-128-sha1-80.patch 184 | 3628 2021-04-09 13:00 patches/expose-video-capturer-state.patch 185 | 1750 2021-04-09 13:00 patches/force-dtls-1_2.patch 186 | 2453 2021-10-04 09:20 patches/only-resolve-uuid-mdns-hostnames.patch 187 | 2574 2021-10-04 09:31 patches/srtp-cipher-suites.patch 188 | 2156 2021-10-04 09:48 patches/unreachable-code-warnings.patch 189 | 190 | **v91.0.1** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false`): 191 | 192 | Like v91.0.0, but packaging was upgraded to Gradle 6.8 and the maven-publish plugin. 193 | Starting with this release, the library will only be published to Maven Central. 194 | 195 | **v91.0.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false`): 196 | 197 | 5162 2021-04-09 13:22 patches/disable-dtmf-and-comfort-noise.patch 198 | 15479 2021-04-09 13:00 patches/disable-unused-audio-codecs.patch 199 | 815 2021-04-09 13:00 patches/dont-leak-video-orientation.patch 200 | 743 2021-04-09 13:00 patches/dtls-cipher-suites.patch 201 | 818 2021-04-09 13:00 patches/enable-cbr-by-default.patch 202 | 8831 2021-04-09 13:00 patches/expose-crypto-option-aes-128-sha1-80.patch 203 | 3628 2021-04-09 13:00 patches/expose-video-capturer-state.patch 204 | 49010 2021-04-09 13:00 patches/fix-rtp-header-extension-encryption.patch 205 | 1750 2021-04-09 13:00 patches/force-dtls-1_2.patch 206 | 2439 2021-04-09 13:00 patches/only-resolve-uuid-mdns-hostnames.patch 207 | 2615 2021-04-09 13:00 patches/srtp-cipher-suites.patch 208 | 209 | **v84.2.1** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false`): 210 | 211 | Like v84.2.0, but released to Maven Central for easier backwards compatibility. 212 | 213 | **v84.2.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false`): 214 | 215 | Like v84.1.0, but with the following additional patch: 216 | 217 | 3636 Nov 10 16:37 patches/expose-video-capturer-state.patch 218 | 219 | **v84.1.1** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false`): 220 | 221 | Like v84.1.0, but based on commit `963cc1ef1336b52ca27742beb28bfbc211ed54d0`. 222 | 223 | **v84.1.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false`): 224 | 225 | Like v84.0.0, but with the following additional patch: 226 | 227 | 12394 Jun 22 15:23 patches/fix-data-channel-message-integrity.patch 228 | 229 | **v84.0.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false`): 230 | 231 | 3603 May 26 13:53 patches/disable-dtmf-and-comfort-noise.patch 232 | 15479 May 26 13:53 patches/disable-unused-audio-codecs.patch 233 | 815 May 26 13:53 patches/dont-leak-video-orientation.patch 234 | 743 May 7 15:55 patches/dtls-cipher-suites.patch 235 | 818 May 26 13:53 patches/enable-cbr-by-default.patch 236 | 8831 Jun 15 15:18 patches/expose-crypto-option-aes-128-sha1-80.patch 237 | 4718 Jun 15 15:17 patches/expose-offer-extmap-allow-mixed.patch 238 | 34276 May 26 13:53 patches/fix-rtp-header-extension-encryption.patch 239 | 1750 May 26 13:53 patches/force-dtls-1_2.patch 240 | 614 May 26 16:02 patches/libsrtp-two-byte-rtp-header-extension-crypto.patch 241 | 2439 May 26 13:53 patches/only-resolve-uuid-mdns-hostnames.patch 242 | 2615 May 28 10:26 patches/srtp-cipher-suites.patch 243 | 244 | **v83.1.1** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false`): 245 | 246 | 3.6K May 26 13:53 patches/disable-dtmf-and-comfort-noise.patch 247 | 16K May 26 13:53 patches/disable-unused-audio-codecs.patch 248 | 815 May 26 13:53 patches/dont-leak-video-orientation.patch 249 | 743 May 7 15:55 patches/dtls-cipher-suites.patch 250 | 818 May 26 13:53 patches/enable-cbr-by-default.patch 251 | 5.0K May 7 15:55 patches/expose-crypto-option-aes-128-sha1-80.patch 252 | 2.3K May 7 15:55 patches/expose-offer-extmap-allow-mixed.patch 253 | 34K May 26 13:53 patches/fix-rtp-header-extension-encryption.patch 254 | 1.8K May 26 13:53 patches/force-dtls-1_2.patch 255 | 614 May 26 16:02 patches/libsrtp-two-byte-rtp-header-extension-crypto.patch 256 | 864 May 26 15:39 patches/objc-rtcstats-export.patch 257 | 2.4K May 26 13:53 patches/only-resolve-uuid-mdns-hostnames.patch 258 | 2.6K May 28 10:26 patches/srtp-cipher-suites.patch 259 | 260 | **v83.1.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false`): 261 | 262 | 3.6K May 26 13:53 patches/disable-dtmf-and-comfort-noise.patch 263 | 16K May 26 13:53 patches/disable-unused-audio-codecs.patch 264 | 815 May 26 13:53 patches/dont-leak-video-orientation.patch 265 | 743 May 7 15:55 patches/dtls-cipher-suites.patch 266 | 818 May 26 13:53 patches/enable-cbr-by-default.patch 267 | 5.0K May 7 15:55 patches/expose-crypto-option-aes-128-sha1-80.patch 268 | 2.3K May 7 15:55 patches/expose-offer-extmap-allow-mixed.patch 269 | 34K May 26 13:53 patches/fix-rtp-header-extension-encryption.patch 270 | 1.8K May 26 13:53 patches/force-dtls-1_2.patch 271 | 614 May 26 16:02 patches/libsrtp-two-byte-rtp-header-extension-crypto.patch 272 | 864 May 26 15:39 patches/objc-rtcstats-export.patch 273 | 2.4K May 26 13:53 patches/only-resolve-uuid-mdns-hostnames.patch 274 | 817 May 13 10:23 patches/srtp-cipher-suites.patch 275 | 276 | **v83.0.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1`) 277 | 278 | - `dtls-cipher-suites.patch` 279 | - `expose-crypto-option-aes-128-sha1-80.patch` 280 | - `expose-offer-extmap-allow-mixed.patch` 281 | - `srtp-cipher-suites.patch` 282 | 283 | **v81.1.0** (`WEBRTC_COMPILE_ARGS: symbol_level=1 enable_libaom=false`) 284 | 285 | 12392 Jun 23 09:01 patches/fix-data-channel-message-integrity.patch 286 | 8201 Jun 23 09:01 patches/fix-sctp-pointer-leak.patch 287 | 288 | 289 | ## Signatures 290 | 291 | Releases to Maven Central are signed with the following PGP key: 292 | 293 | pub rsa4096 2016-09-06 [SC] [expires: 2026-09-04] 294 | E7AD D991 4E26 0E8B 35DF B506 65FD E935 573A CDA6 295 | uid Threema Signing Key 296 | 297 | 298 | ## Local testing 299 | 300 | Create a local publication (usually at `$HOME/.m2/repository/`): 301 | 302 | ./gradlew publishToMavenLocal 303 | 304 | Include it in your project like this: 305 | 306 | repositories { 307 | ... 308 | mavenLocal() 309 | } 310 | 311 | 312 | ## License 313 | 314 | Copyright (c) 2019-2024 Threema GmbH 315 | 316 | Licensed under the Apache License, Version 2.0, 317 | or the MIT license , at your option. This file may not be 318 | copied, modified, or distributed except according to those terms. 319 | -------------------------------------------------------------------------------- /RELEASING.md: -------------------------------------------------------------------------------- 1 | # Releasing 2 | 3 | Set variables: 4 | 5 | export VERSION=X.Y.Z 6 | export GPG_KEY=E7ADD9914E260E8B35DFB50665FDE935573ACDA6 7 | 8 | Ensure that `ossrhUsername` and `ossrhPassword` are defined in your 9 | `~/.gradle/gradle.properties` file. This **must not** be the OSSRH username but 10 | a generated access token (confusingly also having a username)! 11 | 12 | Align SDK versions and bump versions: 13 | 14 | vim -p build.gradle README.md 15 | 16 | Build: 17 | 18 | ./gradlew clean build 19 | 20 | Add and commit: 21 | 22 | git commit -S${GPG_KEY} -m "Release v${VERSION}" 23 | 24 | Publish the library to Sonatype OSS / Maven Central: 25 | 26 | ./gradlew publish 27 | 28 | Afterwards, go to and: 29 | 30 | - Close the repository 31 | - Release the repository 32 | 33 | *Note: It may take a while until the release is visible!* 34 | 35 | Tag and push: 36 | 37 | git tag -s -u ${GPG_KEY} v${VERSION} -m "Version ${VERSION}" 38 | git push && git push --tags 39 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | buildscript { 2 | repositories { 3 | google() 4 | } 5 | 6 | dependencies { 7 | classpath 'com.android.tools.build:gradle:8.9.0' 8 | } 9 | } 10 | 11 | plugins { 12 | id 'maven-publish' 13 | id 'signing' 14 | } 15 | 16 | ext { 17 | groupId = 'ch.threema' 18 | webrtcVersion = '134' 19 | libraryVersion = '134.0.0' 20 | } 21 | 22 | apply plugin: 'com.android.library' 23 | 24 | android { 25 | namespace = 'ch.threema.webrtc' 26 | 27 | compileSdkVersion 35 28 | buildToolsVersion '35.0.0' 29 | 30 | defaultConfig { 31 | minSdkVersion 21 32 | } 33 | 34 | buildTypes { 35 | release { 36 | minifyEnabled false 37 | } 38 | } 39 | 40 | sourceSets { 41 | main { 42 | jniLibs.srcDirs = ['libs'] 43 | } 44 | } 45 | 46 | packagingOptions { 47 | exclude 'META-INF/NOTICE' 48 | exclude 'META-INF/LICENSE' 49 | } 50 | 51 | compileOptions { 52 | sourceCompatibility JavaVersion.VERSION_11 53 | targetCompatibility JavaVersion.VERSION_11 54 | } 55 | 56 | publishing { 57 | singleVariant('release') 58 | } 59 | } 60 | 61 | repositories { 62 | google() 63 | mavenCentral() 64 | } 65 | 66 | dependencies { 67 | implementation files('libs/libwebrtc.jar') 68 | } 69 | 70 | afterEvaluate { 71 | publishing { 72 | publications { 73 | release(MavenPublication) { 74 | from components.findByName('release') 75 | 76 | groupId = project.ext.groupId 77 | artifactId = project.name 78 | version = project.ext.libraryVersion 79 | 80 | pom { 81 | name = 'WebRTC for Android' 82 | description = "WebRTC m${project.ext.webrtcVersion} builds for Android, with some custom patches applied" 83 | url = 'https://github.com/threema-ch/webrtc-android' 84 | 85 | scm { 86 | url = 'https://github.com/threema-ch/webrtc-android' 87 | } 88 | 89 | licenses { 90 | license { 91 | name = 'The Apache License, Version 2.0' 92 | url = 'LICENSE-APACHE' 93 | } 94 | license { 95 | name = 'The MIT License' 96 | url = 'LICENSE-MIT' 97 | } 98 | } 99 | 100 | developers { 101 | developer { 102 | id = 'db' 103 | name = 'Danilo Bargen' 104 | email = 'danilo.bargen@threema.ch' 105 | } 106 | } 107 | } 108 | } 109 | } 110 | 111 | repositories { 112 | maven { 113 | def releasesRepoUrl = 'https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/' 114 | def snapshotsRepoUrl = 'https://s01.oss.sonatype.org/content/repositories/snapshots' 115 | url = version.endsWith('SNAPSHOT') ? snapshotsRepoUrl : releasesRepoUrl 116 | if (project.hasProperty('ossrhUsername') && project.hasProperty('ossrhPassword')) { 117 | credentials { 118 | username = ossrhUsername 119 | password = ossrhPassword 120 | } 121 | } 122 | } 123 | } 124 | } 125 | 126 | signing { 127 | useGpgCmd() // Use gpg-agent. For config options, see `gradle.properties`. 128 | sign publishing.publications.release 129 | } 130 | } 131 | -------------------------------------------------------------------------------- /copy-webrtc.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | set -euo pipefail 3 | 4 | if [ "$#" -ne 1 ]; then 5 | echo "Usage: $0 " 6 | exit 1 7 | fi 8 | 9 | source=${1%/} 10 | destination=./libs 11 | architectures=("arm:armeabi-v7a" "arm64:arm64-v8a" "x86:x86" "x64:x86_64") 12 | 13 | echo "Copying..." 14 | mkdir -p "$destination" 15 | cp -v "$source/libwebrtc.jar" "$destination/" 16 | for architecture in "${architectures[@]}"; do 17 | IFS=: read -ra parts <<< "$architecture" 18 | mkdir -p "$destination/${parts[1]}" 19 | cp -v "$source/${parts[0]}/libjingle_peerconnection_so.so" "$destination/${parts[1]}/libjingle_peerconnection_so.so" 20 | done 21 | 22 | echo "Done." 23 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8 2 | android.useAndroidX=true 3 | android.nonTransitiveRClass=true 4 | 5 | # GnuPG config for signing 6 | signing.gnupg.keyName=E7ADD9914E260E8B35DFB50665FDE935573ACDA6 7 | signing.gnupg.useLegacyGpg=false 8 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/threema-ch/webrtc-android/802e935f0636337747e5f6058773441f41ab55d4/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionBase=GRADLE_USER_HOME 2 | distributionPath=wrapper/dists 3 | zipStoreBase=GRADLE_USER_HOME 4 | zipStorePath=wrapper/dists 5 | distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-all.zip 6 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | # 4 | # Copyright 2015 the original author or authors. 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # https://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | 19 | ############################################################################## 20 | ## 21 | ## Gradle start up script for UN*X 22 | ## 23 | ############################################################################## 24 | 25 | # Attempt to set APP_HOME 26 | # Resolve links: $0 may be a link 27 | PRG="$0" 28 | # Need this for relative symlinks. 29 | while [ -h "$PRG" ] ; do 30 | ls=`ls -ld "$PRG"` 31 | link=`expr "$ls" : '.*-> \(.*\)$'` 32 | if expr "$link" : '/.*' > /dev/null; then 33 | PRG="$link" 34 | else 35 | PRG=`dirname "$PRG"`"/$link" 36 | fi 37 | done 38 | SAVED="`pwd`" 39 | cd "`dirname \"$PRG\"`/" >/dev/null 40 | APP_HOME="`pwd -P`" 41 | cd "$SAVED" >/dev/null 42 | 43 | APP_NAME="Gradle" 44 | APP_BASE_NAME=`basename "$0"` 45 | 46 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 47 | DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' 48 | 49 | # Use the maximum available, or set MAX_FD != -1 to use that value. 50 | MAX_FD="maximum" 51 | 52 | warn () { 53 | echo "$*" 54 | } 55 | 56 | die () { 57 | echo 58 | echo "$*" 59 | echo 60 | exit 1 61 | } 62 | 63 | # OS specific support (must be 'true' or 'false'). 64 | cygwin=false 65 | msys=false 66 | darwin=false 67 | nonstop=false 68 | case "`uname`" in 69 | CYGWIN* ) 70 | cygwin=true 71 | ;; 72 | Darwin* ) 73 | darwin=true 74 | ;; 75 | MINGW* ) 76 | msys=true 77 | ;; 78 | NONSTOP* ) 79 | nonstop=true 80 | ;; 81 | esac 82 | 83 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 84 | 85 | 86 | # Determine the Java command to use to start the JVM. 87 | if [ -n "$JAVA_HOME" ] ; then 88 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 89 | # IBM's JDK on AIX uses strange locations for the executables 90 | JAVACMD="$JAVA_HOME/jre/sh/java" 91 | else 92 | JAVACMD="$JAVA_HOME/bin/java" 93 | fi 94 | if [ ! -x "$JAVACMD" ] ; then 95 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 96 | 97 | Please set the JAVA_HOME variable in your environment to match the 98 | location of your Java installation." 99 | fi 100 | else 101 | JAVACMD="java" 102 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 103 | 104 | Please set the JAVA_HOME variable in your environment to match the 105 | location of your Java installation." 106 | fi 107 | 108 | # Increase the maximum file descriptors if we can. 109 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 110 | MAX_FD_LIMIT=`ulimit -H -n` 111 | if [ $? -eq 0 ] ; then 112 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 113 | MAX_FD="$MAX_FD_LIMIT" 114 | fi 115 | ulimit -n $MAX_FD 116 | if [ $? -ne 0 ] ; then 117 | warn "Could not set maximum file descriptor limit: $MAX_FD" 118 | fi 119 | else 120 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 121 | fi 122 | fi 123 | 124 | # For Darwin, add options to specify how the application appears in the dock 125 | if $darwin; then 126 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 127 | fi 128 | 129 | # For Cygwin or MSYS, switch paths to Windows format before running java 130 | if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then 131 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 132 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 133 | 134 | JAVACMD=`cygpath --unix "$JAVACMD"` 135 | 136 | # We build the pattern for arguments to be converted via cygpath 137 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 138 | SEP="" 139 | for dir in $ROOTDIRSRAW ; do 140 | ROOTDIRS="$ROOTDIRS$SEP$dir" 141 | SEP="|" 142 | done 143 | OURCYGPATTERN="(^($ROOTDIRS))" 144 | # Add a user-defined pattern to the cygpath arguments 145 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 146 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 147 | fi 148 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 149 | i=0 150 | for arg in "$@" ; do 151 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 152 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 153 | 154 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 155 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 156 | else 157 | eval `echo args$i`="\"$arg\"" 158 | fi 159 | i=`expr $i + 1` 160 | done 161 | case $i in 162 | 0) set -- ;; 163 | 1) set -- "$args0" ;; 164 | 2) set -- "$args0" "$args1" ;; 165 | 3) set -- "$args0" "$args1" "$args2" ;; 166 | 4) set -- "$args0" "$args1" "$args2" "$args3" ;; 167 | 5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 168 | 6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 169 | 7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 170 | 8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 171 | 9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 172 | esac 173 | fi 174 | 175 | # Escape application args 176 | save () { 177 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 178 | echo " " 179 | } 180 | APP_ARGS=`save "$@"` 181 | 182 | # Collect all arguments for the java command, following the shell quoting and substitution rules 183 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 184 | 185 | exec "$JAVACMD" "$@" 186 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @rem 2 | @rem Copyright 2015 the original author or authors. 3 | @rem 4 | @rem Licensed under the Apache License, Version 2.0 (the "License"); 5 | @rem you may not use this file except in compliance with the License. 6 | @rem You may obtain a copy of the License at 7 | @rem 8 | @rem https://www.apache.org/licenses/LICENSE-2.0 9 | @rem 10 | @rem Unless required by applicable law or agreed to in writing, software 11 | @rem distributed under the License is distributed on an "AS IS" BASIS, 12 | @rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | @rem See the License for the specific language governing permissions and 14 | @rem limitations under the License. 15 | @rem 16 | 17 | @if "%DEBUG%" == "" @echo off 18 | @rem ########################################################################## 19 | @rem 20 | @rem Gradle startup script for Windows 21 | @rem 22 | @rem ########################################################################## 23 | 24 | @rem Set local scope for the variables with windows NT shell 25 | if "%OS%"=="Windows_NT" setlocal 26 | 27 | set DIRNAME=%~dp0 28 | if "%DIRNAME%" == "" set DIRNAME=. 29 | set APP_BASE_NAME=%~n0 30 | set APP_HOME=%DIRNAME% 31 | 32 | @rem Resolve any "." and ".." in APP_HOME to make it shorter. 33 | for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi 34 | 35 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 36 | set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" 37 | 38 | @rem Find java.exe 39 | if defined JAVA_HOME goto findJavaFromJavaHome 40 | 41 | set JAVA_EXE=java.exe 42 | %JAVA_EXE% -version >NUL 2>&1 43 | if "%ERRORLEVEL%" == "0" goto execute 44 | 45 | echo. 46 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 47 | echo. 48 | echo Please set the JAVA_HOME variable in your environment to match the 49 | echo location of your Java installation. 50 | 51 | goto fail 52 | 53 | :findJavaFromJavaHome 54 | set JAVA_HOME=%JAVA_HOME:"=% 55 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 56 | 57 | if exist "%JAVA_EXE%" goto execute 58 | 59 | echo. 60 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 61 | echo. 62 | echo Please set the JAVA_HOME variable in your environment to match the 63 | echo location of your Java installation. 64 | 65 | goto fail 66 | 67 | :execute 68 | @rem Setup the command line 69 | 70 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 71 | 72 | 73 | @rem Execute Gradle 74 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* 75 | 76 | :end 77 | @rem End local scope for the variables with windows NT shell 78 | if "%ERRORLEVEL%"=="0" goto mainEnd 79 | 80 | :fail 81 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 82 | rem the _cmd.exe /c_ return code! 83 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 84 | exit /b 1 85 | 86 | :mainEnd 87 | if "%OS%"=="Windows_NT" endlocal 88 | 89 | :omega 90 | -------------------------------------------------------------------------------- /libs/arm64-v8a/libjingle_peerconnection_so.so: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/threema-ch/webrtc-android/802e935f0636337747e5f6058773441f41ab55d4/libs/arm64-v8a/libjingle_peerconnection_so.so -------------------------------------------------------------------------------- /libs/armeabi-v7a/libjingle_peerconnection_so.so: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/threema-ch/webrtc-android/802e935f0636337747e5f6058773441f41ab55d4/libs/armeabi-v7a/libjingle_peerconnection_so.so -------------------------------------------------------------------------------- /libs/libwebrtc.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/threema-ch/webrtc-android/802e935f0636337747e5f6058773441f41ab55d4/libs/libwebrtc.jar -------------------------------------------------------------------------------- /libs/x86/libjingle_peerconnection_so.so: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/threema-ch/webrtc-android/802e935f0636337747e5f6058773441f41ab55d4/libs/x86/libjingle_peerconnection_so.so -------------------------------------------------------------------------------- /libs/x86_64/libjingle_peerconnection_so.so: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/threema-ch/webrtc-android/802e935f0636337747e5f6058773441f41ab55d4/libs/x86_64/libjingle_peerconnection_so.so -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | rootProject.name = 'webrtc-android' 2 | -------------------------------------------------------------------------------- /src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | -------------------------------------------------------------------------------- /src/main/java/ch/threema/webrtc/NothingToSeeHere.java: -------------------------------------------------------------------------------- 1 | package ch.threema.webrtc; 2 | 3 | /** 4 | * Empty class, just so that this Java library is not empty. 5 | * This library only has the purpose of packaging the WebRTC build. 6 | */ 7 | public class NothingToSeeHere { } 8 | --------------------------------------------------------------------------------