1 files changed, 121 insertions, 0 deletions
diff --git a/media/libstagefright/wifi-display/rtp/RTPSender.h b/media/libstagefright/wifi-display/rtp/RTPSender.h
new file mode 100644
index 0000000..fefcab7
--- /dev/null
+++ b/media/libstagefright/wifi-display/rtp/RTPSender.h
@@ -0,0 +1,121 @@
+/*
+ * Copyright 2013, 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 RTP_SENDER_H_
+
+#define RTP_SENDER_H_
+
+#include "RTPBase.h"
+
+#include <media/stagefright/foundation/AHandler.h>
+
+namespace android {
+
+struct ABuffer;
+struct ANetworkSession;
+
+// An object of this class facilitates sending of media data over an RTP
+// channel. The channel is established over a UDP or TCP connection depending
+// on which "TransportMode" was chosen. In addition different RTP packetization
+// schemes are supported such as "Transport Stream Packets over RTP",
+// or "AVC/H.264 encapsulation as specified in RFC 3984 (non-interleaved mode)"
+struct RTPSender : public RTPBase, public AHandler {
+    enum {
+        kWhatInitDone,
+        kWhatError,
+        kWhatNetworkStall,
+        kWhatInformSender,
+    };
+    RTPSender(
+            const sp<ANetworkSession> &netSession,
+            const sp<AMessage> &notify);
+
+    status_t initAsync(
+              const char *remoteHost,
+              int32_t remoteRTPPort,
+              TransportMode rtpMode,
+              int32_t remoteRTCPPort,
+              TransportMode rtcpMode,
+              int32_t *outLocalRTPPort);
+
+    status_t queueBuffer(
+            const sp<ABuffer> &buffer,
+            uint8_t packetType,
+            PacketizationMode mode);
+
+protected:
+    virtual ~RTPSender();
+    virtual void onMessageReceived(const sp<AMessage> &msg);
+
+private:
+    enum {
+        kWhatRTPNotify,
+        kWhatRTCPNotify,
+    };
+
+    enum {
+        kMaxNumTSPacketsPerRTPPacket = (kMaxUDPPacketSize - 12) / 188,
+        kMaxHistorySize              = 1024,
+        kSourceID                    = 0xdeadbeef,
+    };
+
+    sp<ANetworkSession> mNetSession;
+    sp<AMessage> mNotify;
+    TransportMode mRTPMode;
+    TransportMode mRTCPMode;
+    int32_t mRTPSessionID;
+    int32_t mRTCPSessionID;
+    bool mRTPConnected;
+    bool mRTCPConnected;
+
+    uint64_t mLastNTPTime;
+    uint32_t mLastRTPTime;
+    uint32_t mNumRTPSent;
+    uint32_t mNumRTPOctetsSent;
+    uint32_t mNumSRsSent;
+
+    uint32_t mRTPSeqNo;
+
+    List<sp<ABuffer> > mHistory;
+    size_t mHistorySize;
+
+    static uint64_t GetNowNTP();
+
+    status_t queueRawPacket(const sp<ABuffer> &tsPackets, uint8_t packetType);
+    status_t queueTSPackets(const sp<ABuffer> &tsPackets, uint8_t packetType);
+    status_t queueAVCBuffer(const sp<ABuffer> &accessUnit, uint8_t packetType);
+
+    status_t sendRTPPacket(
+            const sp<ABuffer> &packet, bool storeInHistory,
+            bool timeValid = false, int64_t timeUs = -1ll);
+
+    void onNetNotify(bool isRTP, const sp<AMessage> &msg);
+
+    status_t onRTCPData(const sp<ABuffer> &data);
+    status_t parseReceiverReport(const uint8_t *data, size_t size);
+    status_t parseTSFB(const uint8_t *data, size_t size);
+    status_t parseAPP(const uint8_t *data, size_t size);
+
+    void notifyInitDone(status_t err);
+    void notifyError(status_t err);
+    void notifyNetworkStall(size_t numBytesQueued);
+
+    DISALLOW_EVIL_CONSTRUCTORS(RTPSender);
+};
+
+}  // namespace android
+
+#endif  // RTP_SENDER_H_