NuCachedSource2.h revision 9d2f386dd2885eaffa11fd494ae258bb09fe6397
15994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber/* 25994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber * Copyright (C) 2010 The Android Open Source Project 35994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber * 45994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 55994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber * you may not use this file except in compliance with the License. 65994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber * You may obtain a copy of the License at 75994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber * 85994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 95994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber * 105994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber * Unless required by applicable law or agreed to in writing, software 115994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 125994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 135994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber * See the License for the specific language governing permissions and 145994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber * limitations under the License. 155994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber */ 165994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 175994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber#ifndef NU_CACHED_SOURCE_2_H_ 185994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 195994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber#define NU_CACHED_SOURCE_2_H_ 205994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 215994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber#include <media/stagefright/foundation/ABase.h> 225994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber#include <media/stagefright/foundation/AHandlerReflector.h> 235994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber#include <media/stagefright/DataSource.h> 245994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 255994b4798b01f3dd340577c9ea9657f09093a770Andreas Hubernamespace android { 265994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 275994b4798b01f3dd340577c9ea9657f09093a770Andreas Huberstruct ALooper; 285994b4798b01f3dd340577c9ea9657f09093a770Andreas Huberstruct PageCache; 295994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 305994b4798b01f3dd340577c9ea9657f09093a770Andreas Huberstruct NuCachedSource2 : public DataSource { 3149c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber NuCachedSource2( 3249c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber const sp<DataSource> &source, 3349c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber const char *cacheConfig = NULL, 3449c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber bool disconnectAtHighwatermark = false); 355994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 365994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber virtual status_t initCheck() const; 375994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 38c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong virtual ssize_t readAt(off64_t offset, void *data, size_t size); 395994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 40c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong virtual status_t getSize(off64_t *size); 415994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber virtual uint32_t flags(); 425994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 439d2f386dd2885eaffa11fd494ae258bb09fe6397James Dong virtual sp<DecryptHandle> DrmInitialization(const char* mime); 44b5ce361d19e69fe156f7188c9ee0f4734b259874Gloria Wang virtual void getDrmInfo(sp<DecryptHandle> &handle, DrmManagerClient **client); 45771b85d9245a24273497792a2515d88d31c99e1eGloria Wang virtual String8 getUri(); 466511c9755c3a3360ba869772600c7aae048a7ffcAndreas Huber 476511c9755c3a3360ba869772600c7aae048a7ffcAndreas Huber virtual String8 getMIMEType() const; 486511c9755c3a3360ba869772600c7aae048a7ffcAndreas Huber 495994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber //////////////////////////////////////////////////////////////////////////// 505994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 515994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber size_t cachedSize(); 521bd233ce7e1aa7730bc18d46ffd57791391738cdBryan Mawhinney size_t approxDataRemaining(status_t *finalStatus); 535994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 5434ef0f32c8fc0186236a27e07405328cc1f7c56dAndreas Huber void resumeFetchingIfNecessary(); 55b33d2ac90cfce0fe6db8c3e979e7ae2bbfc28163James Dong 56b33d2ac90cfce0fe6db8c3e979e7ae2bbfc28163James Dong // The following methods are supported only if the 57b33d2ac90cfce0fe6db8c3e979e7ae2bbfc28163James Dong // data source is HTTP-based; otherwise, ERROR_UNSUPPORTED 58b33d2ac90cfce0fe6db8c3e979e7ae2bbfc28163James Dong // is returned. 595b1b8a93a07326f1cbc627f09e02988375189e0aJames Dong status_t getEstimatedBandwidthKbps(int32_t *kbps); 60b33d2ac90cfce0fe6db8c3e979e7ae2bbfc28163James Dong status_t setCacheStatCollectFreq(int32_t freqMs); 6134ef0f32c8fc0186236a27e07405328cc1f7c56dAndreas Huber 6249c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber static void RemoveCacheSpecificHeaders( 6349c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber KeyedVector<String8, String8> *headers, 6449c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber String8 *cacheConfig, 6549c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber bool *disconnectAtHighwatermark); 6649c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber 675994b4798b01f3dd340577c9ea9657f09093a770Andreas Huberprotected: 685994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber virtual ~NuCachedSource2(); 695994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 705994b4798b01f3dd340577c9ea9657f09093a770Andreas Huberprivate: 715994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber friend struct AHandlerReflector<NuCachedSource2>; 725994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 735994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber enum { 74a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber kPageSize = 65536, 75a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber kDefaultHighWaterThreshold = 20 * 1024 * 1024, 76a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber kDefaultLowWaterThreshold = 4 * 1024 * 1024, 77a5273ebd1746368662a597643d6701a5046d5c7bAndreas Huber 78a5273ebd1746368662a597643d6701a5046d5c7bAndreas Huber // Read data after a 15 sec timeout whether we're actively 79a5273ebd1746368662a597643d6701a5046d5c7bAndreas Huber // fetching or not. 80a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber kDefaultKeepAliveIntervalUs = 15000000, 815994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber }; 825994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 835994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber enum { 845994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber kWhatFetchMore = 'fetc', 855994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber kWhatRead = 'read', 865994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber }; 875994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 880683eba6b35c396c21f10e926709f2f8fc05f090Andreas Huber enum { 890683eba6b35c396c21f10e926709f2f8fc05f090Andreas Huber kMaxNumRetries = 10, 900683eba6b35c396c21f10e926709f2f8fc05f090Andreas Huber }; 910683eba6b35c396c21f10e926709f2f8fc05f090Andreas Huber 925994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber sp<DataSource> mSource; 935994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber sp<AHandlerReflector<NuCachedSource2> > mReflector; 945994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber sp<ALooper> mLooper; 955994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 965994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber Mutex mSerializer; 975994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber Mutex mLock; 985994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber Condition mCondition; 995994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 1005994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber PageCache *mCache; 101c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mCacheOffset; 1025994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber status_t mFinalStatus; 103c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mLastAccessPos; 1045994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber sp<AMessage> mAsyncResult; 1055994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber bool mFetching; 106a5273ebd1746368662a597643d6701a5046d5c7bAndreas Huber int64_t mLastFetchTimeUs; 1075994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 1080683eba6b35c396c21f10e926709f2f8fc05f090Andreas Huber int32_t mNumRetriesLeft; 1090683eba6b35c396c21f10e926709f2f8fc05f090Andreas Huber 110a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber size_t mHighwaterThresholdBytes; 111a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber size_t mLowwaterThresholdBytes; 112a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber 113a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber // If the keep-alive interval is 0, keep-alives are disabled. 114a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber int64_t mKeepAliveIntervalUs; 115a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber 11649c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber bool mDisconnectAtHighwatermark; 11749c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber 1185994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber void onMessageReceived(const sp<AMessage> &msg); 1195994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber void onFetch(); 1205994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber void onRead(const sp<AMessage> &msg); 1215994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 1225994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber void fetchInternal(); 123c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong ssize_t readInternal(off64_t offset, void *data, size_t size); 124c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong status_t seekInternal_l(off64_t offset); 1255994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 1261bd233ce7e1aa7730bc18d46ffd57791391738cdBryan Mawhinney size_t approxDataRemaining_l(status_t *finalStatus); 1277bf8413f91fc072452f315a91618aeef2574d420Andreas Huber 1287bf8413f91fc072452f315a91618aeef2574d420Andreas Huber void restartPrefetcherIfNecessary_l( 1297bf8413f91fc072452f315a91618aeef2574d420Andreas Huber bool ignoreLowWaterThreshold = false, bool force = false); 1305994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 131a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber void updateCacheParamsFromSystemProperty(); 132a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber void updateCacheParamsFromString(const char *s); 133a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber 1345994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(NuCachedSource2); 1355994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber}; 1365994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 1375994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber} // namespace android 1385994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 1395994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber#endif // NU_CACHED_SOURCE_2_H_ 140