Changeset 4622

Timestamp:

02/18/10 19:56:49 (3 years ago)

Author:

soohyunc

Message:

We don't need to send AoA (Ack of Ack) on every data packet. Specially, the data
packets are triggered within the encoding loop, we do not want to send AoA
because it will increase the whole Tx time, which will eventually dealy the
whole encoding process.

Therefore, if the data packets are triggered within the encoding loop, we only
send AoA in the first data packet transmission, omitting to send AoA for the
rest of the data packets (in the encoding loop).

Location:

vic/branches/cc/rtp

Files:

• session.cpp (modified) (1 diff)
• session.h (modified) (1 diff)
• transmitter.cpp (modified) (2 diffs)
• transmitter.h (modified) (1 diff)

vic/branches/cc/rtp/session.cpp

@@ -476 +476 @@
 }
 
+void SessionManager::tx_data_only(pktbuf* pb) 
+{
+        if (pb->layer < loop_layer_) {
+                Network* n = dh_[pb->layer].net();
+                if (n != 0)
+                        n->send(pb);
+        }
+}
+
 // sending ack of ack packet (RTCP XR report packet)
 void CtrlHandler::send_aoa()

vic/branches/cc/rtp/session.h

@@ -161 +161 @@
         virtual int check_format(int fmt) const = 0;
         virtual void transmit(pktbuf* pb);
+        virtual void tx_data_only(pktbuf* pb);
         void send_report(int bye);
         void send_ECNXreport(CtrlHandler* ch, u_int8_t tos, u_int16_t begin_seq);

vic/branches/cc/rtp/transmitter.cpp

@@ -321 +321 @@
                 head_ = pb->next;
 
-                // call Transmitter::output(pb)
-                output(pb);
+                // call Transmitter::output_data_only(pb)
+                output_data_only(pb);
         }
 //      fprintf(stderr,"\t^                                          ^\n");
@@ -452 +452 @@
 }
 
+void Transmitter::output_data_only(pktbuf* pb) 
+{
+        tx_data_only(pb);
+        loopback(pb);
+}
+
 /*void Transmitter::release(pktbuf* pb)
 {

vic/branches/cc/rtp/transmitter.h

@@ -114 +114 @@
         void loopback(pktbuf*);
         void output(pktbuf* pb);
+        void output_data_only(pktbuf* pb);
         virtual void transmit(pktbuf* pb) = 0;
+        virtual void tx_data_only(pktbuf* pb) = 0;
         double gettimeofday_secs() const;
         double txtime(pktbuf* pb);