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Ladybird+LibWeb+WebContent: Create a platform plugin for playing audio

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This creates (and installs upon WebContent startup) a platform plugin to
play audio data.

On Serenity, we use AudioServer to play audio over IPC. Unfortunately,
AudioServer is currently coupled with Serenity's audio devices, and thus
cannot be used in Ladybird on Lagom. Instead, we use a Qt audio device
to play the audio, which requires the Qt multimedia package.

While we use Qt to play the audio, note that we can still use LibAudio
to decode the audio data and retrieve samples - we simply send Qt the
raw PCM signals.
This commit is contained in:
Timothy Flynn 2023-06-12 13:44:10 -04:00 • committed by Andreas Kling
parent ee48d7514f
commit a34e369252
15 changed files with 317 additions and 9 deletions
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3
Ladybird/WebContent/CMakeLists.txt
View file

@ -6,6 +6,7 @@ set(WEBCONTENT_SOURCES
${WEBCONTENT_SOURCE_DIR}/PageHost.cpp
${WEBCONTENT_SOURCE_DIR}/WebContentConsoleClient.cpp
${WEBCONTENT_SOURCE_DIR}/WebDriverConnection.cpp
../AudioCodecPluginLadybird.cpp
../EventLoopImplementationQt.cpp
../FontPluginQt.cpp
../ImageCodecPluginLadybird.cpp
@ -25,4 +26,4 @@ qt_add_executable(WebContent ${WEBCONTENT_SOURCES})
target_include_directories(WebContent PRIVATE ${SERENITY_SOURCE_DIR}/Userland/Services/)
target_include_directories(WebContent PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/..)
target_link_libraries(WebContent PRIVATE Qt::Core Qt::Gui Qt::Network LibCore LibFileSystem LibGfx LibIPC LibJS LibMain LibWeb LibWebSocket)
target_link_libraries(WebContent PRIVATE Qt::Core Qt::Gui Qt::Network Qt::Multimedia LibAudio LibCore LibFileSystem LibGfx LibIPC LibJS LibMain LibWeb LibWebSocket)

5
Ladybird/WebContent/main.cpp
View file

@ -4,6 +4,7 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "../AudioCodecPluginLadybird.h"
#include "../EventLoopImplementationQt.h"
#include "../FontPluginQt.h"
#include "../ImageCodecPluginLadybird.h"
@ -57,6 +58,10 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
Web::Platform::EventLoopPlugin::install(*new Web::Platform::EventLoopPluginSerenity);
Web::Platform::ImageCodecPlugin::install(*new Ladybird::ImageCodecPluginLadybird);
Web::Platform::AudioCodecPlugin::install_creation_hook([] {
return Ladybird::AudioCodecPluginLadybird::create();
});
Web::ResourceLoader::initialize(RequestManagerQt::create());
Web::WebSockets::WebSocketClientManager::initialize(Ladybird::WebSocketClientManagerLadybird::create());