obs-webrtc: Add WHIP output & service

This adds a WHIP output & associated service.
- Code inspiration from DDRBoxman
- Implemented by Sean DuBois & tt2468
- Various fixes and contributions by pkv.

Co-authored-by: tt2468 <tt2468@irltoolkit.com>
Co-authored-by: DDRBoxman <colin@recursivepenguin.com>
Co-authored-by: pkv <pkv@obsproject.com>
Signed-off-by: pkv <pkv@obsproject.com>

CI/linux/02_build_obs.sh

@@ -59,6 +59,7 @@ _configure_obs() {
         -DLINUX_PORTABLE=${PORTABLE_BUILD:-OFF} \
         -DENABLE_AJA=OFF \
         -DENABLE_NEW_MPEGTS_OUTPUT=OFF \
+        -DENABLE_WEBRTC=OFF \
         ${PIPEWIRE_OPTION} \
         ${YOUTUBE_OPTIONS} \
         ${TWITCH_OPTIONS} \

plugins/CMakeLists.txt

@@ -76,6 +76,7 @@ if(OBS_CMAKE_VERSION VERSION_GREATER_EQUAL 3.0.0)
      OR OS_LINUX)
     add_subdirectory(obs-vst)
   endif()
+  add_subdirectory(obs-webrtc)
   check_obs_websocket()
   add_subdirectory(obs-x264)
   add_subdirectory(rtmp-services)
@@ -191,3 +192,4 @@ add_subdirectory(obs-transitions)
 add_subdirectory(rtmp-services)
 add_subdirectory(text-freetype2)
 add_subdirectory(aja)
+add_subdirectory(obs-webrtc)

plugins/obs-webrtc/CMakeLists.txt

@@ -0,0 +1,21 @@
+cmake_minimum_required(VERSION 3.16...3.25)
+
+legacy_check()
+
+option(ENABLE_WEBRTC "Enable WebRTC Output support" ON)
+if(NOT ENABLE_WEBRTC)
+  message(STATUS "OBS:  DISABLED   obs-webrtc")
+  return()
+endif()
+
+find_package(LibDataChannel REQUIRED)
+find_package(CURL REQUIRED)
+
+add_library(obs-webrtc MODULE)
+add_library(OBS::webrtc ALIAS obs-webrtc)
+
+target_sources(obs-webrtc PRIVATE obs-webrtc.cpp whip-output.cpp whip-output.h whip-service.cpp whip-service.h)
+
+target_link_libraries(obs-webrtc PRIVATE OBS::libobs LibDataChannel::LibDataChannel CURL::libcurl)
+
+set_target_properties_obs(obs-webrtc PROPERTIES FOLDER plugins PREFIX "")

plugins/obs-webrtc/cmake/legacy.cmake

@@ -0,0 +1,21 @@
+project(obs-webrtc)
+
+option(ENABLE_WEBRTC "Enable WebRTC Output support" ON)
+if(NOT ENABLE_WEBRTC)
+  obs_status(DISABLED, "obs-webrtc")
+  return()
+endif()
+
+find_package(LibDataChannel REQUIRED)
+find_package(CURL REQUIRED)
+
+add_library(obs-webrtc MODULE)
+add_library(OBS::webrtc ALIAS obs-webrtc)
+
+target_sources(obs-webrtc PRIVATE obs-webrtc.cpp whip-output.cpp whip-output.h whip-service.cpp whip-service.h)
+
+target_link_libraries(obs-webrtc PRIVATE OBS::libobs LibDataChannel::LibDataChannel CURL::libcurl)
+
+set_target_properties(obs-webrtc PROPERTIES FOLDER "plugins")
+
+setup_plugin_target(obs-webrtc)

plugins/obs-webrtc/cmake/macos/Info.plist.in

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleName</key>
+	<string>obs-webrtc</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.obsproject.obs-webrtc</string>
+	<key>CFBundleVersion</key>
+	<string>${MACOSX_BUNDLE_BUNDLE_VERSION}</string>
+	<key>CFBundleShortVersionString</key>
+	<string>${MACOSX_BUNDLE_SHORT_VERSION_STRING}</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleExecutable</key>
+	<string>obs-webrtc</string>
+	<key>CFBundlePackageType</key>
+	<string>BNDL</string>
+	<key>CFBundleSupportedPlatforms</key>
+	<array>
+		<string>MacOSX</string>
+	</array>
+	<key>LSMinimumSystemVersion</key>
+	<string>${CMAKE_OSX_DEPLOYMENT_TARGET}</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>(c) 2012-${CURRENT_YEAR} Hugh Bailey</string>
+</dict>
+</plist>

plugins/obs-webrtc/cmake/windows/obs-module.rc.in

@@ -0,0 +1,24 @@
+1 VERSIONINFO
+FILEVERSION ${OBS_VERSION_MAJOR},${OBS_VERSION_MINOR},${OBS_VERSION_PATCH},0
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "040904B0"
+    BEGIN
+      VALUE "CompanyName", "${OBS_COMPANY_NAME}"
+      VALUE "FileDescription", "OBS output module"
+      VALUE "FileVersion", "${OBS_VERSION_CANONICAL}"
+      VALUE "ProductName", "${OBS_PRODUCT_NAME}"
+      VALUE "ProductVersion", "${OBS_VERSION_CANONICAL}"
+      VALUE "Comments", "${OBS_COMMENTS}"
+      VALUE "LegalCopyright", "${OBS_LEGAL_COPYRIGHT}"
+      VALUE "InternalName", "obs-webrtc"
+      VALUE "OriginalFilename", "obs-webrtc"
+    END
+  END
+
+  BLOCK "VarFileInfo"
+  BEGIN
+    VALUE "Translation", 0x0409, 0x04B0
+  END
+END

plugins/obs-webrtc/data/locale/en-US.ini

@@ -0,0 +1,3 @@
+Output.Name="WHIP Output"
+Service.Name="WHIP Service"
+Service.BearerToken="Bearer Token"

plugins/obs-webrtc/obs-webrtc.cpp

@@ -0,0 +1,19 @@
+#include <obs-module.h>
+
+#include "whip-output.h"
+#include "whip-service.h"
+
+OBS_DECLARE_MODULE()
+OBS_MODULE_USE_DEFAULT_LOCALE("obs-webrtc", "en-US")
+MODULE_EXPORT const char *obs_module_description(void)
+{
+	return "OBS WebRTC module";
+}
+
+bool obs_module_load()
+{
+	register_whip_output();
+	register_whip_service();
+
+	return true;
+}