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/*
* 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 sp<DecryptHandle> DrmInitialization();
virtual void getDrmInfo(sp<DecryptHandle> &handle, DrmManagerClient **client);
virtual String8 getUri();
virtual String8 getMIMEType() const;
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;
String8 mContentType;
List<BandwidthEntry> mBandwidthHistory;
size_t mNumBandwidthHistoryItems;
int64_t mTotalTransferTimeUs;
size_t mTotalTransferBytes;
sp<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, const char *contentType);
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_
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