ladybird/Userland/Libraries/LibAudio/ClientConnection.cpp
kleines Filmröllchen 152ec28da0 Audio: Change how volume works
Across the entire audio system, audio now works in 0-1 terms instead of
0-100 as before. Therefore, volume is now a double instead of an int.
The master volume of the AudioServer changes smoothly through a
FadingProperty, preventing clicks. Finally, volume computations are done
with logarithmic scaling, which is more natural for the human ear.

Note that this could be 4-5 different commits, but as they change each
other's code all the time, it makes no sense to split them up.
2021-09-12 23:38:57 +02:00

57 lines
1.4 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibAudio/Buffer.h>
#include <LibAudio/ClientConnection.h>
namespace Audio {
ClientConnection::ClientConnection()
: IPC::ServerConnection<AudioClientEndpoint, AudioServerEndpoint>(*this, "/tmp/portal/audio")
{
}
void ClientConnection::enqueue(Buffer const& buffer)
{
for (;;) {
auto success = enqueue_buffer(buffer.anonymous_buffer(), buffer.id(), buffer.sample_count());
if (success)
break;
// FIXME: We don't know what is a good value for this.
// For now, decrease it to enable better real-time audio.
usleep(10000);
}
}
void ClientConnection::async_enqueue(Buffer const& buffer)
{
async_enqueue_buffer(buffer.anonymous_buffer(), buffer.id(), buffer.sample_count());
}
bool ClientConnection::try_enqueue(Buffer const& buffer)
{
return enqueue_buffer(buffer.anonymous_buffer(), buffer.id(), buffer.sample_count());
}
void ClientConnection::finished_playing_buffer(i32 buffer_id)
{
if (on_finish_playing_buffer)
on_finish_playing_buffer(buffer_id);
}
void ClientConnection::muted_state_changed(bool muted)
{
if (on_muted_state_change)
on_muted_state_change(muted);
}
void ClientConnection::main_mix_volume_changed(double volume)
{
if (on_main_mix_volume_change)
on_main_mix_volume_change(volume);
}
}