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/* rtp_audio_routing.cpp
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "rtp_audio_routing.h"
AudioRouting::AudioRouting(bool muted, audio_routing_channel_t channel):
muted_(muted),
channel_(channel)
{
}
char const *AudioRouting::formatAudioRoutingToString()
{
if (muted_) {
return "Muted";
} else {
switch (channel_) {
case channel_any:
// Should not happen ever
return "ERR";
case channel_mono:
return "Play";
case channel_stereo_left:
return "L";
case channel_stereo_right:
return "R";
case channel_stereo_both:
return "L+R";
}
}
// Should not happen ever
return "ERR";
}
AudioRouting AudioRouting::getNextChannel(bool stereo_available)
{
if (stereo_available) {
// Stereo
if (muted_) {
return AudioRouting(AUDIO_UNMUTED, channel_stereo_left);
} else {
switch (channel_) {
case channel_stereo_left:
return AudioRouting(AUDIO_UNMUTED, channel_stereo_both);
case channel_stereo_both:
return AudioRouting(AUDIO_UNMUTED, channel_stereo_right);
case channel_stereo_right:
return AudioRouting(AUDIO_MUTED, channel_stereo_right);
default:
return AudioRouting(AUDIO_UNMUTED, channel_stereo_left);
}
}
} else {
// Mono
if (muted_) {
return AudioRouting(AUDIO_UNMUTED, channel_mono);
} else {
return AudioRouting(AUDIO_MUTED, channel_mono);
}
}
}
AudioRouting AudioRouting::convert(bool stereo_available)
{
// Muting is not touched by conversion
if (stereo_available) {
switch (channel_) {
case channel_mono:
// Mono -> Stereo
return AudioRouting(muted_, channel_stereo_both);
case channel_any:
// Unknown -> Unknown
return AudioRouting(muted_, channel_any);
default:
// Stereo -> Stereo
return AudioRouting(muted_, channel_);
}
} else {
switch (channel_) {
case channel_mono:
// Mono -> Mono
return AudioRouting(muted_, channel_mono);
case channel_any:
// Unknown -> Unknown
return AudioRouting(muted_, channel_any);
default:
// Stereo -> Mono
return AudioRouting(muted_, channel_mono);
}
}
}
void AudioRouting::mergeAudioRouting(AudioRouting new_audio_routing)
{
if (new_audio_routing.getChannel() == channel_any) {
muted_ = new_audio_routing.isMuted();
} else {
muted_ = new_audio_routing.isMuted();
channel_ = new_audio_routing.getChannel();
}
}
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