libobs: Fix for monitoring deduplication edge case

When an 'Audio Capture Source' device is also used for monitoring, the
deduplication logic is applied: all monitored sources are silenced.
But this should not silence the 'Audio Capture Source' if for some
reason, it is being monitored (the user will get echoes, but hey, it's
their choice). So we exclude the 'Audio Capture Source' from the
silenced sources.

Signed-off-by: pkv <[email protected]>

libobs/obs-audio.c

@@ -544,7 +544,8 @@ static inline bool should_silence_monitored_source(obs_source_t *source, struct
 	bool output_capture_unmuted = !audio->monitoring_duplicating_source->user_muted;
 
 	if (audio->prevent_monitoring_duplication && output_capture_unmuted) {
-		if (source->monitoring_type == OBS_MONITORING_TYPE_MONITOR_AND_OUTPUT) {
+		if (source->monitoring_type == OBS_MONITORING_TYPE_MONITOR_AND_OUTPUT &&
+		    source != audio->monitoring_duplicating_source) {
 			return true;
 		}
 	}