An HTTP datasource for stagefright using the chromium code.

Use of this new datasource is now the default unless overwritten by

adb shell setprop media.stagefright.use-chromium false

Change-Id: I156a8eb9a1fff1cb537b4aec6cf3e8e6052be81e

1 files changed, 127 insertions, 0 deletions

diff --git a/media/libstagefright/include/ChromiumHTTPDataSource.h b/media/libstagefright/include/ChromiumHTTPDataSource.h
new file mode 100644
index 0000000..ee8fcda
--- /dev/null
+++ b/media/libstagefright/include/ChromiumHTTPDataSource.h
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2011 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 CHROME_HTTP_DATA_SOURCE_H_
+
+#define CHROME_HTTP_DATA_SOURCE_H_
+
+#include <media/stagefright/foundation/AString.h>
+#include <utils/threads.h>
+
+#include "HTTPBase.h"
+
+namespace android {
+
+struct SfDelegate;
+
+struct ChromiumHTTPDataSource : public HTTPBase {
+    ChromiumHTTPDataSource(uint32_t flags = 0);
+
+    virtual status_t connect(
+            const char *uri,
+            const KeyedVector<String8, String8> *headers = NULL,
+            off64_t offset = 0);
+
+    virtual void disconnect();
+
+    virtual status_t initCheck() const;
+
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size);
+    virtual status_t getSize(off64_t *size);
+    virtual uint32_t flags();
+
+    virtual bool estimateBandwidth(int32_t *bandwidth_bps);
+
+    virtual DecryptHandle *DrmInitialization();
+
+    virtual void getDrmInfo(DecryptHandle **handle, DrmManagerClient **client);
+
+    virtual String8 getUri();
+
+protected:
+    virtual ~ChromiumHTTPDataSource();
+
+private:
+    friend struct SfDelegate;
+
+    enum State {
+        DISCONNECTED,
+        CONNECTING,
+        CONNECTED,
+        READING,
+        DISCONNECTING
+    };
+
+    struct BandwidthEntry {
+        int64_t mDelayUs;
+        size_t mNumBytes;
+    };
+
+    const uint32_t mFlags;
+
+    mutable Mutex mLock;
+    Condition mCondition;
+
+    State mState;
+
+    SfDelegate *mDelegate;
+
+    AString mURI;
+    KeyedVector<String8, String8> mHeaders;
+
+    off64_t mCurrentOffset;
+
+    // Any connection error or the result of a read operation
+    // (for the lattter this is the number of bytes read, if successful).
+    ssize_t mIOResult;
+
+    int64_t mContentSize;
+
+    List<BandwidthEntry> mBandwidthHistory;
+    size_t mNumBandwidthHistoryItems;
+    int64_t mTotalTransferTimeUs;
+    size_t mTotalTransferBytes;
+
+    DecryptHandle *mDecryptHandle;
+    DrmManagerClient *mDrmManagerClient;
+
+    void disconnect_l();
+
+    status_t connect_l(
+            const char *uri,
+            const KeyedVector<String8, String8> *headers,
+            off64_t offset);
+
+    static void InitiateRead(
+            ChromiumHTTPDataSource *me, void *data, size_t size);
+
+    void initiateRead(void *data, size_t size);
+
+    void onConnectionEstablished(int64_t contentSize);
+    void onConnectionFailed(status_t err);
+    void onReadCompleted(ssize_t size);
+    void onDisconnectComplete();
+
+    void addBandwidthMeasurement_l(size_t numBytes, int64_t delayUs);
+
+    void clearDRMState_l();
+
+    DISALLOW_EVIL_CONSTRUCTORS(ChromiumHTTPDataSource);
+};
+
+}  // namespace android
+
+#endif  // CHROME_HTTP_DATA_SOURCE_H_