Initial checkin of preliminary rtsp support for stagefright.

Change-Id: I0722aa888098c0c1361c97a4c1b123d910afc207

1 files changed, 97 insertions, 0 deletions

diff --git a/media/libstagefright/rtsp/ARTSPConnection.h b/media/libstagefright/rtsp/ARTSPConnection.h
new file mode 100644
index 0000000..3577a2f
--- /dev/null
+++ b/media/libstagefright/rtsp/ARTSPConnection.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef A_RTSP_CONNECTION_H_
+
+#define A_RTSP_CONNECTION_H_
+
+#include <media/stagefright/foundation/AHandler.h>
+#include <media/stagefright/foundation/AString.h>
+
+namespace android {
+
+struct ABuffer;
+
+struct ARTSPResponse : public RefBase {
+    unsigned long mStatusCode;
+    AString mStatusLine;
+    KeyedVector<AString,AString> mHeaders;
+    sp<ABuffer> mContent;
+};
+
+struct ARTSPConnection : public AHandler {
+    ARTSPConnection();
+
+    void connect(const char *url, const sp<AMessage> &reply);
+    void disconnect(const sp<AMessage> &reply);
+
+    void sendRequest(const char *request, const sp<AMessage> &reply);
+
+protected:
+    virtual ~ARTSPConnection();
+    virtual void onMessageReceived(const sp<AMessage> &msg);
+
+private:
+    enum State {
+        DISCONNECTED,
+        CONNECTING,
+        CONNECTED,
+    };
+
+    enum {
+        kWhatConnect            = 'conn',
+        kWhatDisconnect         = 'disc',
+        kWhatCompleteConnection = 'comc',
+        kWhatSendRequest        = 'sreq',
+        kWhatReceiveResponse    = 'rres',
+    };
+
+    static const int64_t kSelectTimeoutUs;
+
+    State mState;
+    int mSocket;
+    int32_t mConnectionID;
+    int32_t mNextCSeq;
+    bool mReceiveResponseEventPending;
+
+    KeyedVector<int32_t, sp<AMessage> > mPendingRequests;
+
+    void onConnect(const sp<AMessage> &msg);
+    void onDisconnect(const sp<AMessage> &msg);
+    void onCompleteConnection(const sp<AMessage> &msg);
+    void onSendRequest(const sp<AMessage> &msg);
+    void onReceiveResponse();
+
+    void flushPendingRequests();
+    void postReceiveReponseEvent();
+
+    // Return false iff something went unrecoverably wrong.
+    bool receiveRTSPReponse();
+    bool receiveLine(AString *line);
+    bool notifyResponseListener(const sp<ARTSPResponse> &response);
+
+    static bool ParseURL(
+            const char *url, AString *host, unsigned *port, AString *path);
+
+    static bool ParseSingleUnsignedLong(
+            const char *from, unsigned long *x);
+
+    DISALLOW_EVIL_CONSTRUCTORS(ARTSPConnection);
+};
+
+}  // namespace android
+
+#endif  // A_RTSP_CONNECTION_H_