1 files changed, 77 insertions, 0 deletions
diff --git a/media/libstagefright/rtsp/ARTPAssembler.cpp b/media/libstagefright/rtsp/ARTPAssembler.cpp
new file mode 100644
index 0000000..a897c10
--- /dev/null
+++ b/media/libstagefright/rtsp/ARTPAssembler.cpp
@@ -0,0 +1,77 @@
+/*
+ * 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.
+ */
+
+#include "ARTPAssembler.h"
+
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AMessage.h>
+
+#include <stdint.h>
+
+namespace android {
+
+static int64_t getNowUs() {
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+
+    return (int64_t)tv.tv_usec + tv.tv_sec * 1000000ll;
+}
+
+ARTPAssembler::ARTPAssembler()
+    : mFirstFailureTimeUs(-1) {
+}
+
+void ARTPAssembler::onPacketReceived(const sp<ARTPSource> &source) {
+    AssemblyStatus status;
+    for (;;) {
+        status = assembleMore(source);
+
+        if (status == WRONG_SEQUENCE_NUMBER) {
+            if (mFirstFailureTimeUs >= 0) {
+                if (getNowUs() - mFirstFailureTimeUs > 10000ll) {
+                    mFirstFailureTimeUs = -1;
+
+                    // LOG(VERBOSE) << "waited too long for packet.";
+                    packetLost();
+                    continue;
+                }
+            } else {
+                mFirstFailureTimeUs = getNowUs();
+            }
+            break;
+        } else {
+            mFirstFailureTimeUs = -1;
+
+            if (status == NOT_ENOUGH_DATA) {
+                break;
+            }
+        }
+    }
+}
+
+// static
+void ARTPAssembler::CopyTimes(const sp<ABuffer> &to, const sp<ABuffer> &from) {
+    uint32_t rtpTime;
+    CHECK(from->meta()->findInt32("rtp-time", (int32_t *)&rtpTime));
+
+    to->meta()->setInt32("rtp-time", rtpTime);
+
+    // Copy the seq number.
+    to->setInt32Data(from->int32Data());
+}
+
+}  // namespace android