diff options
Diffstat (limited to 'media/libstagefright/include/HTTPBase.h')
-rw-r--r-- | media/libstagefright/include/HTTPBase.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/media/libstagefright/include/HTTPBase.h b/media/libstagefright/include/HTTPBase.h new file mode 100644 index 0000000..b8e10f7 --- /dev/null +++ b/media/libstagefright/include/HTTPBase.h @@ -0,0 +1,92 @@ +/* + * 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 HTTP_BASE_H_ + +#define HTTP_BASE_H_ + +#include <media/stagefright/foundation/ABase.h> +#include <media/stagefright/DataSource.h> +#include <media/stagefright/MediaErrors.h> +#include <utils/threads.h> + +namespace android { + +struct HTTPBase : public DataSource { + enum Flags { + // Don't log any URLs. + kFlagIncognito = 1 + }; + + HTTPBase(); + + virtual status_t connect( + const char *uri, + const KeyedVector<String8, String8> *headers = NULL, + off64_t offset = 0) = 0; + + virtual void disconnect() = 0; + + // Returns true if bandwidth could successfully be estimated, + // false otherwise. + virtual bool estimateBandwidth(int32_t *bandwidth_bps); + + virtual status_t getEstimatedBandwidthKbps(int32_t *kbps); + + virtual status_t setBandwidthStatCollectFreq(int32_t freqMs); + + void setUID(uid_t uid); + bool getUID(uid_t *uid) const; + + static sp<HTTPBase> Create(uint32_t flags = 0); + + static void RegisterSocketUserTag(int sockfd, uid_t uid, uint32_t kTag); + static void UnRegisterSocketUserTag(int sockfd); + +protected: + void addBandwidthMeasurement(size_t numBytes, int64_t delayUs); + +private: + struct BandwidthEntry { + int64_t mDelayUs; + size_t mNumBytes; + }; + + Mutex mLock; + + List<BandwidthEntry> mBandwidthHistory; + size_t mNumBandwidthHistoryItems; + int64_t mTotalTransferTimeUs; + size_t mTotalTransferBytes; + + enum { + kMinBandwidthCollectFreqMs = 1000, // 1 second + kMaxBandwidthCollectFreqMs = 60000, // one minute + }; + + int64_t mPrevBandwidthMeasureTimeUs; + int32_t mPrevEstimatedBandWidthKbps; + int32_t mBandWidthCollectFreqMs; + + bool mUIDValid; + uid_t mUID; + + DISALLOW_EVIL_CONSTRUCTORS(HTTPBase); +}; + +} // namespace android + +#endif // HTTP_BASE_H_ |