Merge pull request #2503 from b95505017/rtmp_client

Rtmp client

extensions/rtmp/README.md

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+# ExoPlayer RTMP Extension #
+
+## Description ##
+
+The RTMP Extension is an [DataSource][] implementation for playing [RTMP][] streaming using
+[Librtmp Client for Android].
+
+## Using the extension ##
+
+When building [MediaSource][], inject `RtmpDataSourceFactory` like this:
+
+```java
+private MediaSource buildMediaSource(Uri uri, String overrideExtension) {
+  int type = TextUtils.isEmpty(overrideExtension) ? Util.inferContentType(uri)
+      : Util.inferContentType("." + overrideExtension);
+  switch (type) {
+
+    // ... other types cases
+
+    case C.TYPE_OTHER:
+      DataSource.Factory factory = uri.getScheme().equals("rtmp") ? new RtmpDataSourceFactory() : mediaDataSourceFactory;
+      return new ExtractorMediaSource(uri, factory, new DefaultExtractorsFactory(), mainHandler, eventLogger);
+    default: {
+      throw new IllegalStateException("Unsupported type: " + type);
+    }
+  }
+}
+```
+
+
+[DataSource]: https://google.github.io/ExoPlayer/doc/reference/com/google/android/exoplayer2/upstream/DataSource.html
+[RTMP]: https://en.wikipedia.org/wiki/Real-Time_Messaging_Protocol
+[Librtmp Client for Android]: https://github.com/ant-media/LibRtmp-Client-for-Android
+[MediaSource]: https://google.github.io/ExoPlayer/doc/reference/com/google/android/exoplayer2/source/MediaSource.html

extensions/rtmp/build.gradle

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+// Copyright (C) 2016 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion project.ext.compileSdkVersion
+    buildToolsVersion project.ext.buildToolsVersion
+
+    defaultConfig {
+        minSdkVersion 16
+        targetSdkVersion project.ext.targetSdkVersion
+    }
+}
+
+dependencies {
+    compile project(':library-core')
+    compile 'net.butterflytv.utils:rtmp-client:0.2.6.1'
+}

extensions/rtmp/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<manifest package="com.google.android.exoplayer2.ext.rtmp"/>

extensions/rtmp/src/main/java/com/google/android/exoplayer2/ext/rtmp/RtmpDataSource.java

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+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.android.exoplayer2.ext.rtmp;
+
+import android.net.Uri;
+
+import com.google.android.exoplayer2.C;
+import com.google.android.exoplayer2.upstream.DataSource;
+import com.google.android.exoplayer2.upstream.DataSpec;
+
+import net.butterflytv.rtmp_client.RtmpClient;
+
+import java.io.IOException;
+
+/**
+ * A Real-Time Messaging Protocol (RTMP) {@link DataSource}.
+ */
+public final class RtmpDataSource implements DataSource {
+  private final RtmpClient rtmpClient;
+  private Uri uri;
+
+  public RtmpDataSource() {
+    rtmpClient = new RtmpClient();
+  }
+
+  @Override
+  public Uri getUri() {
+    return uri;
+  }
+
+  @Override
+  public long open(DataSpec dataSpec) throws IOException {
+    uri = dataSpec.uri;
+    int result = rtmpClient.open(dataSpec.uri.toString(), false);
+    if (result < 0) {
+      return 0;
+    }
+    return C.LENGTH_UNSET;
+  }
+
+  @Override
+  public void close() throws IOException {
+    rtmpClient.close();
+  }
+
+  @Override
+  public int read(byte[] buffer, int offset, int readLength) throws IOException {
+    return rtmpClient.read(buffer, offset, readLength);
+  }
+
+  public final static class RtmpDataSourceFactory implements DataSource.Factory {
+    @Override
+    public DataSource createDataSource() {
+      return new RtmpDataSource();
+    }
+  }
+}