From a269462b5554501f0736727ef1b908114566f63d Mon Sep 17 00:00:00 2001
From: f4exb <f4exb06@gmail.com>
Date: Mon, 18 Feb 2019 07:57:03 +0100
Subject: [PATCH] Copy audio to UDP/RTP: Opus implementation (1)

---
 sdrbase/audio/audionetsink.cpp | 9 +++++++++
 sdrbase/audio/audionetsink.h   | 3 ++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/sdrbase/audio/audionetsink.cpp b/sdrbase/audio/audionetsink.cpp
index 8410faa07..0d7e3a3b7 100644
--- a/sdrbase/audio/audionetsink.cpp
+++ b/sdrbase/audio/audionetsink.cpp
@@ -206,6 +206,10 @@ void AudioNetSink::write(qint16 isample)
                 m_udpSocket->writeDatagram((const char*) m_data, (qint64 ) m_udpBlockSize, m_address, m_port);
                 m_bufferIndex = 0;
             }
+        }
+        else if (m_codec == CodecOpus)
+        {
+
         }
         else
         {
@@ -242,6 +246,11 @@ void AudioNetSink::write(qint16 isample)
             if (m_bufferIndex == 2*m_udpBlockSize) {
                 m_g722.encode((uint8_t *) m_data, (const int16_t*) &m_data[m_udpBlockSize], 2*m_udpBlockSize);
             }
+        }
+            break;
+        case CodecOpus:
+        {
+
         }
             break;
         case CodecL16:
diff --git a/sdrbase/audio/audionetsink.h b/sdrbase/audio/audionetsink.h
index 97b283b4d..0d173352d 100644
--- a/sdrbase/audio/audionetsink.h
+++ b/sdrbase/audio/audionetsink.h
@@ -71,7 +71,7 @@ public:
     static const int m_udpBlockSize;
     static const int m_dataBlockSize = 65536; // room for G722 conversion (64000 = 12800*5 largest to date)
     static const int m_g722BlockSize = 12800; // number of resulting G722 bytes (80*20ms frames)
-    static const int m_opusBlockSize = 960*4; // provision for 20ms of 2 int16 channels at 48 kS/s
+    static const int m_opusBlockSize = 960*2; // provision for 20ms of 2 int16 channels at 48 kS/s
 
 protected:
     void setDecimationFilters();
@@ -87,6 +87,7 @@ protected:
     uint32_t m_decimation;
     uint32_t m_decimationCount;
     char m_data[m_dataBlockSize];
+    uint16_t m_opusIn[m_opusBlockSize];
     unsigned int m_bufferIndex;
     QHostAddress m_address;
     unsigned int m_port;