Adding getParameters/setParameters APIs to RtpReceiver.

webrtc/api/java/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 2009 matching lines @@
 JOW(jlong, RtpSender_nativeGetTrack)(JNIEnv* jni,
                                   jclass,
                                   jlong j_rtp_sender_pointer,
                                   jlong j_track_pointer) {
   return jlongFromPointer(
       reinterpret_cast<RtpSenderInterface*>(j_rtp_sender_pointer)
           ->track()
           .release());
 }
 
-static bool JavaEncodingToJsepRtpEncodingParameters(
+static void JavaRtpParametersToJsepRtpParameters(
     JNIEnv* jni,
-    jobject j_encodings,
-    std::vector<webrtc::RtpEncodingParameters>* encodings) {
+    jobject j_parameters,
+    webrtc::RtpParameters* parameters) {
+  RTC_CHECK(parameters != nullptr);
+  jclass parameters_class = jni->FindClass("org/webrtc/RtpParameters");
+  jfieldID encodings_id =
+      GetFieldID(jni, parameters_class, "encodings", "Ljava/util/LinkedList;");
+  jfieldID codecs_id =
+      GetFieldID(jni, parameters_class, "codecs", "Ljava/util/LinkedList;");
+
+  // 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;");
   jclass j_integer_class = jni->FindClass("java/lang/Integer");
   jmethodID int_value_id = GetMethodID(jni, j_integer_class, "intValue", "()I");
 
   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;
     }
-    encodings->push_back(encoding);
+    parameters->encodings.push_back(encoding);
   }
-  return true;
-}
 
-static bool JavaCodecToJsepRtpCodecParameters(
-    JNIEnv* jni,
-    jobject j_codecs,
-    std::vector<webrtc::RtpCodecParameters>* codecs) {
+  // 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");
   jfieldID channels_id = GetFieldID(jni, codec_class, "channels", "I");
 
   for (jobject j_codec : Iterable(jni, j_codecs)) {
     webrtc::RtpCodecParameters codec;
     codec.payload_type = GetIntField(jni, j_codec, payload_type_id);
     codec.mime_type =
         JavaToStdString(jni, GetStringField(jni, j_codec, mime_type_id));
     codec.clock_rate = GetIntField(jni, j_codec, clock_rate_id);
     codec.channels = GetIntField(jni, j_codec, channels_id);
-    codecs->push_back(codec);
+    parameters->codecs.push_back(codec);
   }
-  return true;
 }
 
-JOW(jboolean, RtpSender_nativeSetParameters)
-(JNIEnv* jni, jclass, jlong j_rtp_sender_pointer, jobject j_parameters) {
-  if (IsNull(jni, j_parameters)) {
-    return false;
-  }
-  jclass parameters_class = jni->FindClass("org/webrtc/RtpParameters");
-  jclass encoding_class = jni->FindClass("org/webrtc/RtpParameters$Encoding");
-  jfieldID encodings_id =
-      GetFieldID(jni, parameters_class, "encodings", "Ljava/util/LinkedList;");
-  jfieldID codecs_id =
-      GetFieldID(jni, parameters_class, "codecs", "Ljava/util/LinkedList;");
-
-  jobject j_encodings = GetObjectField(jni, j_parameters, encodings_id);
-  jobject j_codecs = GetObjectField(jni, j_parameters, codecs_id);
-  webrtc::RtpParameters parameters;
-  JavaEncodingToJsepRtpEncodingParameters(jni, j_encodings,
-                                          &parameters.encodings);
-  JavaCodecToJsepRtpCodecParameters(jni, j_codecs, &parameters.codecs);
-  return reinterpret_cast<RtpSenderInterface*>(j_rtp_sender_pointer)
-      ->SetParameters(parameters);
-}
-
-JOW(jobject, RtpSender_nativeGetParameters)
-(JNIEnv* jni, jclass, jlong j_rtp_sender_pointer) {
-  webrtc::RtpParameters parameters =
-      reinterpret_cast<RtpSenderInterface*>(j_rtp_sender_pointer)
-          ->GetParameters();
-
+static jobject JsepRtpParametersToJavaRtpParameters(
+    JNIEnv* jni,
+    const webrtc::RtpParameters& parameters) {
   jclass parameters_class = jni->FindClass("org/webrtc/RtpParameters");
   jmethodID parameters_ctor =
       GetMethodID(jni, parameters_class, "<init>", "()V");
   jobject j_parameters = jni->NewObject(parameters_class, parameters_ctor);
   CHECK_EXCEPTION(jni) << "error during NewObject";
 
+  // Add encodings.
   jclass encoding_class = jni->FindClass("org/webrtc/RtpParameters$Encoding");
   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 =
@@ skipping 14 matching lines @@
       CHECK_EXCEPTION(jni) << "error during NewObject";
       jni->SetObjectField(j_encoding_parameters, bitrate_id, j_bitrate_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 =
       GetFieldID(jni, parameters_class, "codecs", "Ljava/util/LinkedList;");
   jobject j_codecs = GetObjectField(jni, j_parameters, codecs_id);
   jmethodID codecs_add = GetMethodID(jni, GetObjectClass(jni, j_codecs),
                                      "add", "(Ljava/lang/Object;)Z");
   jfieldID payload_type_id = GetFieldID(jni, codec_class, "payloadType", "I");
   jfieldID mime_type_id =
       GetFieldID(jni, codec_class, "mimeType", "Ljava/lang/String;");
@@ skipping 13 matching lines @@
     jni->SetIntField(j_codec, channels_id, codec.channels);
     CHECK_EXCEPTION(jni) << "error during SetIntField";
     jboolean added = jni->CallBooleanMethod(j_codecs, codecs_add, j_codec);
     CHECK_EXCEPTION(jni) << "error during CallBooleanMethod";
     RTC_CHECK(added);
   }
 
   return j_parameters;
 }
 
+JOW(jboolean, RtpSender_nativeSetParameters)
+(JNIEnv* jni, jclass, jlong j_rtp_sender_pointer, jobject j_parameters) {
+  if (IsNull(jni, j_parameters)) {
+    return false;
+  }
+  webrtc::RtpParameters parameters;
+  JavaRtpParametersToJsepRtpParameters(jni, j_parameters, &parameters);
+  return reinterpret_cast<RtpSenderInterface*>(j_rtp_sender_pointer)
+      ->SetParameters(parameters);
+}
+
+JOW(jobject, RtpSender_nativeGetParameters)
+(JNIEnv* jni, jclass, jlong j_rtp_sender_pointer) {
+  webrtc::RtpParameters parameters =
+      reinterpret_cast<RtpSenderInterface*>(j_rtp_sender_pointer)
+          ->GetParameters();
+  return JsepRtpParametersToJavaRtpParameters(jni, parameters);
+}
+
 JOW(jstring, RtpSender_nativeId)(
     JNIEnv* jni, jclass, jlong j_rtp_sender_pointer) {
   return JavaStringFromStdString(
       jni, reinterpret_cast<RtpSenderInterface*>(j_rtp_sender_pointer)->id());
 }
 
 JOW(void, RtpSender_free)(JNIEnv* jni, jclass, jlong j_rtp_sender_pointer) {
   reinterpret_cast<RtpSenderInterface*>(j_rtp_sender_pointer)->Release();
 }
 
 JOW(jlong, RtpReceiver_nativeGetTrack)(JNIEnv* jni,
                                     jclass,
                                     jlong j_rtp_receiver_pointer,
                                     jlong j_track_pointer) {
   return jlongFromPointer(
       reinterpret_cast<RtpReceiverInterface*>(j_rtp_receiver_pointer)
           ->track()
           .release());
 }
 
+JOW(jboolean, RtpReceiver_nativeSetParameters)
+(JNIEnv* jni, jclass, jlong j_rtp_sender_pointer, jobject j_parameters) {
+  if (IsNull(jni, j_parameters)) {
+    return false;
+  }
+  webrtc::RtpParameters parameters;
+  JavaRtpParametersToJsepRtpParameters(jni, j_parameters, &parameters);
+  return reinterpret_cast<RtpReceiverInterface*>(j_rtp_sender_pointer)
+      ->SetParameters(parameters);
+}
+
+JOW(jobject, RtpReceiver_nativeGetParameters)
+(JNIEnv* jni, jclass, jlong j_rtp_sender_pointer) {
+  webrtc::RtpParameters parameters =
+      reinterpret_cast<RtpReceiverInterface*>(j_rtp_sender_pointer)
+          ->GetParameters();
+  return JsepRtpParametersToJavaRtpParameters(jni, parameters);
+}
+
 JOW(jstring, RtpReceiver_nativeId)(
     JNIEnv* jni, jclass, jlong j_rtp_receiver_pointer) {
   return JavaStringFromStdString(
       jni,
       reinterpret_cast<RtpReceiverInterface*>(j_rtp_receiver_pointer)->id());
 }
 
 JOW(void, RtpReceiver_free)(JNIEnv* jni, jclass, jlong j_rtp_receiver_pointer) {
   reinterpret_cast<RtpReceiverInterface*>(j_rtp_receiver_pointer)->Release();
 }
 
 }  // namespace webrtc_jni