From c6881a425fb82b9f3c41897df813b1e2211efa10 Mon Sep 17 00:00:00 2001
From: SNMetamorph <25657591+SNMetamorph@users.noreply.github.com>
Date: Mon, 15 Aug 2022 11:40:55 +0400
Subject: [PATCH] engine: client: added support for variable voice chat quality

---
 engine/client/cl_main.c |  2 +-
 engine/client/voice.c   | 30 +++++++++++++++++++++++++++++-
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/engine/client/cl_main.c b/engine/client/cl_main.c
index 53b35734..f65166f1 100644
--- a/engine/client/cl_main.c
+++ b/engine/client/cl_main.c
@@ -3085,7 +3085,7 @@ void CL_Init( void )
 
 	VID_Init();	// init video
 	S_Init();	// init sound
-	Voice_Init( "opus", 0 ); // init voice
+	Voice_Init( "opus", 3 ); // init voice
 
 	// unreliable buffer. unsed for unreliable commands and voice stream
 	MSG_Init( &cls.datagram, "cls.datagram", cls.datagram_buf, sizeof( cls.datagram_buf ));
diff --git a/engine/client/voice.c b/engine/client/voice.c
index 9eb63cba..e06e47fb 100644
--- a/engine/client/voice.c
+++ b/engine/client/voice.c
@@ -79,9 +79,37 @@ qboolean Voice_Init( const char *pszCodecName, int quality )
 	}
 
 	voice.encoder = opus_encoder_create( voice.samplerate, voice.channels, OPUS_APPLICATION_VOIP, &err );
+
+	if( err != OPUS_OK )
+		return false;
+
 	voice.decoder = opus_decoder_create( voice.samplerate, voice.channels, &err );
 
-	return true;
+	switch( quality )
+	{
+	case 1: // 4800 bits per second, <4 kHz bandwidth
+		opus_encoder_ctl( voice.encoder, OPUS_SET_BITRATE( 4800 ));
+		opus_encoder_ctl( voice.encoder, OPUS_SET_BANDWIDTH( OPUS_BANDWIDTH_NARROWBAND ));
+		break;
+	case 2: // 12000 bits per second, <6 kHz bandwidth
+		opus_encoder_ctl( voice.encoder, OPUS_SET_BITRATE( 12000 ));
+		opus_encoder_ctl( voice.encoder, OPUS_SET_BANDWIDTH( OPUS_BANDWIDTH_MEDIUMBAND ));
+		break;
+	case 4: // automatic bitrate, full band (20 kHz)
+		opus_encoder_ctl( voice.encoder, OPUS_SET_BITRATE( OPUS_AUTO ));
+		opus_encoder_ctl( voice.encoder, OPUS_SET_BANDWIDTH( OPUS_BANDWIDTH_FULLBAND ));
+		break;
+	case 5: // maximum bitrate, full band (20 kHz)
+		opus_encoder_ctl( voice.encoder, OPUS_SET_BITRATE( OPUS_BITRATE_MAX ));
+		opus_encoder_ctl( voice.encoder, OPUS_SET_BANDWIDTH( OPUS_BANDWIDTH_FULLBAND ));
+		break;
+	default: // 36000 bits per second, <12 kHz bandwidth
+		opus_encoder_ctl( voice.encoder, OPUS_SET_BITRATE( 36000 ));
+		opus_encoder_ctl( voice.encoder, OPUS_SET_BANDWIDTH( OPUS_BANDWIDTH_SUPERWIDEBAND ));
+		break;
+	}
+
+	return err == OPUS_OK;
 }
 
 void Voice_DeInit( void )