Issue #1376 - add option to manually disable full mux rx.

It appears this mode can cause problems on some systems, particulary
related to USB tuners. Can cause high CPU load.

src/dvb/dvb.h

@@ -212,6 +212,7 @@ typedef struct th_dvb_adapter {
   uint32_t tda_diseqc_version;
   uint32_t tda_diseqc_repeats;
   uint32_t tda_disable_pmt_monitor;
+  uint32_t tda_disable_full_mux_rx;
   char *tda_displayname;
 
   char *tda_fe_path;
@@ -363,6 +364,8 @@ void dvb_adapter_set_diseqc_repeats(th_dvb_adapter_t *tda,
 
 void dvb_adapter_set_disable_pmt_monitor(th_dvb_adapter_t *tda, int on);
 
+void dvb_adapter_set_disable_full_mux_rx(th_dvb_adapter_t *tda, int on);
+
 void dvb_adapter_clone(th_dvb_adapter_t *dst, th_dvb_adapter_t *src);
 
 void dvb_adapter_clean(th_dvb_adapter_t *tda);

src/dvb/dvb_adapter.c

@@ -94,6 +94,7 @@ tda_save(th_dvb_adapter_t *tda)
   htsmsg_add_u32(m, "extrapriority", tda->tda_extrapriority);
   htsmsg_add_u32(m, "skip_initialscan", tda->tda_skip_initialscan);
   htsmsg_add_u32(m, "disable_pmt_monitor", tda->tda_disable_pmt_monitor);
+  htsmsg_add_u32(m, "disable_full_mux_rx", tda->tda_disable_full_mux_rx);
   hts_settings_save(m, "dvbadapters/%s", tda->tda_identifier);
   htsmsg_destroy(m);
 }
@@ -364,6 +365,25 @@ dvb_adapter_set_disable_pmt_monitor(th_dvb_adapter_t *tda, int on)
 }
 
 
+/**
+ *
+ */
+void
+dvb_adapter_set_disable_full_mux_rx(th_dvb_adapter_t *tda, int on)
+{
+  if(tda->tda_disable_full_mux_rx == on)
+    return;
+
+  lock_assert(&global_lock);
+
+  tvhlog(LOG_NOTICE, "dvb", "Adapter \"%s\" disabled full MUX receive set to: %s",
+	 tda->tda_displayname, on ? "On" : "Off");
+
+  tda->tda_disable_full_mux_rx = on;
+  tda_save(tda);
+}
+
+
 /**
  *
  */
@@ -388,6 +408,9 @@ check_full_stream(th_dvb_adapter_t *tda)
   struct dmx_pes_filter_params dmx_param;
   int r;
 
+  if(tda->tda_disable_full_mux_rx)
+    return 0;
+
   if(tda->tda_hostconnection == HOSTCONNECTION_USB12)
     return 0; // Don't even bother, device <-> host interface is too slow
 
@@ -658,6 +681,7 @@ dvb_adapter_init(uint32_t adapter_mask, const char *rawfile)
       htsmsg_get_u32(c, "extrapriority", &tda->tda_extrapriority);
       htsmsg_get_u32(c, "skip_initialscan", &tda->tda_skip_initialscan);
       htsmsg_get_u32(c, "disable_pmt_monitor", &tda->tda_disable_pmt_monitor);
+      htsmsg_get_u32(c, "disable_full_mux_rx", &tda->tda_disable_full_mux_rx);
     }
     htsmsg_destroy(l);
   }

src/webui/extjs_dvb.c

@@ -157,6 +157,7 @@ extjs_dvbadapter(http_connection_t *hc, const char *remain, void *opaque)
     htsmsg_add_u32(r, "sidtochan", tda->tda_sidtochan);
     htsmsg_add_u32(r, "nitoid", tda->tda_nitoid);
     htsmsg_add_u32(r, "disable_pmt_monitor", tda->tda_disable_pmt_monitor);
+    htsmsg_add_u32(r, "disable_full_mux_rx", tda->tda_disable_full_mux_rx);
     htsmsg_add_str(r, "diseqcversion", 
 		   ((const char *[]){"DiSEqC 1.0 / 2.0",
 				       "DiSEqC 1.1 / 2.1"})
@@ -199,6 +200,9 @@ extjs_dvbadapter(http_connection_t *hc, const char *remain, void *opaque)
     s = http_arg_get(&hc->hc_req_args, "disable_pmt_monitor");
     dvb_adapter_set_disable_pmt_monitor(tda, !!s);
 
+    s = http_arg_get(&hc->hc_req_args, "disable_full_mux_rx");
+    dvb_adapter_set_disable_full_mux_rx(tda, !!s);
+
     if((s = http_arg_get(&hc->hc_req_args, "nitoid")) != NULL)
       dvb_adapter_set_nitoid(tda, atoi(s));
 

src/webui/static/app/dvb.js

@@ -1089,7 +1089,7 @@ tvheadend.dvb_adapter_general = function(adapterData, satConfStore) {
 	}, [ 'name', 'automux', 'skip_initialscan', 'idlescan', 'diseqcversion',
 		'diseqcrepeats', 'qmon', 'skip_checksubscr', 
 		'poweroff', 'sidtochan', 'nitoid', 'extrapriority',
-		,'disable_pmt_monitor', 'idleclose' ]);
+		,'disable_pmt_monitor', 'disable_full_mux_rx', 'idleclose' ]);
 
 	function saveConfForm() {
 		confform.getForm().submit({
@@ -1135,6 +1135,10 @@ tvheadend.dvb_adapter_general = function(adapterData, satConfStore) {
 			fieldLabel : 'Monitor signal quality',
 			name : 'qmon'
 		}),
+		new Ext.form.Checkbox({
+			fieldLabel : 'Disable full MUX reception',
+			name : 'disable_full_mux_rx'
+		}),
 		new Ext.form.Checkbox({
 			fieldLabel : 'Disable PMT monitoring',
 			name : 'disable_pmt_monitor'