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Use Opus for VoIP

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Server/client VoIP protocol is handled by adding new cvars
cl_voipProtocol and sv_voipProtocol, sv_voip and cl_voip
are used to auto set/clear them. All users need to touch
are cl/sv_voip as 0 or 1 just like before.

Old Speex VoIP packets in demos are skipped.
New VoIP packets are skipped in demos if sv_voipProtocol
doesn't match cl_voipProtocol.

Notable difference between usage of speex and opus codecs,
when using Speex client would be sent 80ms at a time.
Using Opus, 60ms is sent at a time. This was changed because
the Opus codec supports encoding up to 60ms at a time.
(Simpler to send only one codec frame in a packet.)
This commit is contained in:
Zack Middleton 2013-12-10 21:14:13 -06:00
parent fe619680f8
commit 615b73288f
13 changed files with 167 additions and 240 deletions
Download patch file Download diff file Expand all files Collapse all files

8
code/client/snd_openal.c
View file

@ -2681,16 +2681,12 @@ qboolean S_AL_Init( soundInterface_t *si )
s_alAvailableInputDevices = Cvar_Get("s_alAvailableInputDevices", inputdevicenames, CVAR_ROM | CVAR_NORESTART);
// !!! FIXME: 8000Hz is what Speex narrowband mode needs, but we
// !!! FIXME: should probably open the capture device after
// !!! FIXME: initializing Speex so we can change to wideband
// !!! FIXME: if we like.
Com_Printf("OpenAL default capture device is '%s'\n", defaultinputdevice ? defaultinputdevice : "none");
alCaptureDevice = qalcCaptureOpenDevice(inputdevice, 8000, AL_FORMAT_MONO16, 4096);
alCaptureDevice = qalcCaptureOpenDevice(inputdevice, 48000, AL_FORMAT_MONO16, VOIP_MAX_PACKET_SAMPLES*4);
if( !alCaptureDevice && inputdevice )
{
Com_Printf( "Failed to open OpenAL Input device '%s', trying default.\n", inputdevice );
alCaptureDevice = qalcCaptureOpenDevice(NULL, 8000, AL_FORMAT_MONO16, 4096);
alCaptureDevice = qalcCaptureOpenDevice(NULL, 48000, AL_FORMAT_MONO16, VOIP_MAX_PACKET_SAMPLES*4);
}
Com_Printf( "OpenAL capture device %s.\n",
(alCaptureDevice == NULL) ? "failed to open" : "opened");