Adding Java and Obj-C bindings for RtpEncodingParameters.ssrc.

webrtc/sdk/android/src/jni/peerconnection_jni.cc

 /*
  *  Copyright 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 2249 matching lines @@
 
   // Convert encodings.
   jobject j_encodings = GetObjectField(jni, j_parameters, encodings_id);
   const int kBitrateUnlimited = -1;
   jclass j_encoding_parameters_class =
       jni->FindClass("org/webrtc/RtpParameters$Encoding");
   jfieldID active_id =
       GetFieldID(jni, j_encoding_parameters_class, "active", "Z");
   jfieldID bitrate_id = GetFieldID(jni, j_encoding_parameters_class,
                                    "maxBitrateBps", "Ljava/lang/Integer;");
+  jfieldID ssrc_id =
+      GetFieldID(jni, j_encoding_parameters_class, "ssrc", "Ljava/lang/Long;");
   jclass j_integer_class = jni->FindClass("java/lang/Integer");
+  jclass j_long_class = jni->FindClass("java/lang/Long");
   jmethodID int_value_id = GetMethodID(jni, j_integer_class, "intValue", "()I");
+  jmethodID long_value_id = GetMethodID(jni, j_long_class, "longValue", "()J");
 
   for (jobject j_encoding_parameters : Iterable(jni, j_encodings)) {
     webrtc::RtpEncodingParameters encoding;
     encoding.active = GetBooleanField(jni, j_encoding_parameters, active_id);
     jobject j_bitrate =
         GetNullableObjectField(jni, j_encoding_parameters, bitrate_id);
     if (!IsNull(jni, j_bitrate)) {
       int bitrate_value = jni->CallIntMethod(j_bitrate, int_value_id);
       CHECK_EXCEPTION(jni) << "error during CallIntMethod";
       encoding.max_bitrate_bps = bitrate_value;
     } else {
       encoding.max_bitrate_bps = kBitrateUnlimited;
     }
+    jobject j_ssrc =
+        GetNullableObjectField(jni, j_encoding_parameters, ssrc_id);
+    if (!IsNull(jni, j_ssrc)) {
+      jlong ssrc_value = jni->CallLongMethod(j_ssrc, long_value_id);
+      CHECK_EXCEPTION(jni) << "error during CallLongMethod";
+      encoding.ssrc = rtc::Optional<uint32_t>(ssrc_value);
+    }
     parameters->encodings.push_back(encoding);
   }
 
   // Convert codecs.
   jobject j_codecs = GetObjectField(jni, j_parameters, codecs_id);
   jclass codec_class = jni->FindClass("org/webrtc/RtpParameters$Codec");
   jfieldID payload_type_id = GetFieldID(jni, codec_class, "payloadType", "I");
   jfieldID mime_type_id =
       GetFieldID(jni, codec_class, "mimeType", "Ljava/lang/String;");
   jfieldID clock_rate_id = GetFieldID(jni, codec_class, "clockRate", "I");
@@ skipping 24 matching lines @@
   jmethodID encoding_ctor = GetMethodID(jni, encoding_class, "<init>", "()V");
   jfieldID encodings_id =
       GetFieldID(jni, parameters_class, "encodings", "Ljava/util/LinkedList;");
   jobject j_encodings = GetObjectField(jni, j_parameters, encodings_id);
   jmethodID encodings_add = GetMethodID(jni, GetObjectClass(jni, j_encodings),
                                         "add", "(Ljava/lang/Object;)Z");
   jfieldID active_id =
       GetFieldID(jni, encoding_class, "active", "Z");
   jfieldID bitrate_id =
       GetFieldID(jni, encoding_class, "maxBitrateBps", "Ljava/lang/Integer;");
+  jfieldID ssrc_id =
+      GetFieldID(jni, encoding_class, "ssrc", "Ljava/lang/Long;");
 
   jclass integer_class = jni->FindClass("java/lang/Integer");
+  jclass long_class = jni->FindClass("java/lang/Long");
   jmethodID integer_ctor = GetMethodID(jni, integer_class, "<init>", "(I)V");
+  jmethodID long_ctor = GetMethodID(jni, long_class, "<init>", "(J)V");
 
   for (const webrtc::RtpEncodingParameters& encoding : parameters.encodings) {
     jobject j_encoding_parameters =
         jni->NewObject(encoding_class, encoding_ctor);
     CHECK_EXCEPTION(jni) << "error during NewObject";
     jni->SetBooleanField(j_encoding_parameters, active_id, encoding.active);
     CHECK_EXCEPTION(jni) << "error during SetBooleanField";
     if (encoding.max_bitrate_bps > 0) {
       jobject j_bitrate_value =
           jni->NewObject(integer_class, integer_ctor, encoding.max_bitrate_bps);
       CHECK_EXCEPTION(jni) << "error during NewObject";
       jni->SetObjectField(j_encoding_parameters, bitrate_id, j_bitrate_value);
       CHECK_EXCEPTION(jni) << "error during SetObjectField";
     }
+    if (encoding.ssrc) {
+      jobject j_ssrc_value = jni->NewObject(long_class, long_ctor,
+                                            static_cast<jlong>(*encoding.ssrc));
+      CHECK_EXCEPTION(jni) << "error during NewObject";
+      jni->SetObjectField(j_encoding_parameters, ssrc_id, j_ssrc_value);
+      CHECK_EXCEPTION(jni) << "error during SetObjectField";
+    }
     jboolean added = jni->CallBooleanMethod(j_encodings, encodings_add,
                                             j_encoding_parameters);
     CHECK_EXCEPTION(jni) << "error during CallBooleanMethod";
     RTC_CHECK(added);
   }
 
   // Add codecs.
   jclass codec_class = jni->FindClass("org/webrtc/RtpParameters$Codec");
   jmethodID codec_ctor = GetMethodID(jni, codec_class, "<init>", "()V");
   jfieldID codecs_id =
@@ skipping 111 matching lines @@
   reinterpret_cast<RtpReceiverInterface*>(j_rtp_receiver_pointer)
       ->SetObserver(nullptr);
   RtpReceiverObserver* observer =
       reinterpret_cast<RtpReceiverObserver*>(j_observer_pointer);
   if (observer) {
     delete observer;
   }
 }
 
 }  // namespace webrtc_jni