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AudioServer: Add a "main mix volume" and a simple program to get/set it

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Give the mixer a main volume value (percent) that we scale all the
outgoing samples by (before clipping.)

Also add a simple "avol" program for querying and setting the volume:

- "avol" prints the current volume.
- "avol 200" sets the main mix volume to 200%
This commit is contained in:
Andreas Kling 2019-07-29 19:06:58 +02:00
parent 2feddc58bb
commit 15afc88ffe
8 changed files with 72 additions and 0 deletions
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14
Servers/AudioServer/ASClientConnection.cpp
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@ -60,6 +60,20 @@ bool ASClientConnection::handle_message(const ASAPI_ClientMessage& message, cons
post_message(reply);
break;
}
case ASAPI_ClientMessage::Type::GetMainMixVolume: {
ASAPI_ServerMessage reply;
reply.type = ASAPI_ServerMessage::Type::DidGetMainMixVolume;
reply.value = m_mixer.main_volume();
post_message(reply);
break;
}
case ASAPI_ClientMessage::Type::SetMainMixVolume: {
ASAPI_ServerMessage reply;
reply.type = ASAPI_ServerMessage::Type::DidSetMainMixVolume;
m_mixer.set_main_volume(message.value);
post_message(reply);
break;
}
case ASAPI_ClientMessage::Type::Invalid:
default:
dbgprintf("ASClientConnection: Unexpected message ID %d\n", int(message.type));