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/*
* Copyright (C) 2009 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 HTTP_DATASOURCE_H_
#define HTTP_DATASOURCE_H_
#include <media/stagefright/DataSource.h>
#include <utils/String8.h>
namespace android {
class HTTPStream;
class HTTPDataSource : public DataSource {
public:
HTTPDataSource(
const char *host, int port, const char *path,
const KeyedVector<String8, String8> *headers = NULL);
HTTPDataSource(
const char *uri,
const KeyedVector<String8, String8> *headers = NULL);
virtual status_t initCheck() const;
virtual ssize_t readAt(off_t offset, void *data, size_t size);
virtual status_t getSize(off_t *size);
virtual uint32_t flags() {
return kWantsPrefetching;
}
protected:
virtual ~HTTPDataSource();
private:
enum {
kBufferSize = 64 * 1024
};
String8 mHeaders;
HTTPStream *mHttp;
char *mHost;
int mPort;
char *mPath;
void *mBuffer;
size_t mBufferLength;
off_t mBufferOffset;
bool mFirstRequest;
bool mContentLengthValid;
unsigned long long mContentLength;
status_t mInitCheck;
void init(
const char *_host, int port, const char *_path,
const KeyedVector<String8, String8> *headers);
ssize_t sendRangeRequest(size_t offset);
void initHeaders(const KeyedVector<String8, String8> *overrides);
HTTPDataSource(const HTTPDataSource &);
HTTPDataSource &operator=(const HTTPDataSource &);
};
} // namespace android
#endif // HTTP_DATASOURCE_H_
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