NuCachedSource2.h revision 48296b792a8d68358de74141fa80bd5bd84d0307
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 4048296b792a8d68358de74141fa80bd5bd84d0307Chong Zhang virtual void disconnect(); 4148296b792a8d68358de74141fa80bd5bd84d0307Chong Zhang 42c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong virtual status_t getSize(off64_t *size); 435994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber virtual uint32_t flags(); 445994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 459d2f386dd2885eaffa11fd494ae258bb09fe6397James Dong virtual sp<DecryptHandle> DrmInitialization(const char* mime); 46b5ce361d19e69fe156f7188c9ee0f4734b259874Gloria Wang virtual void getDrmInfo(sp<DecryptHandle> &handle, DrmManagerClient **client); 47771b85d9245a24273497792a2515d88d31c99e1eGloria Wang virtual String8 getUri(); 486511c9755c3a3360ba869772600c7aae048a7ffcAndreas Huber 496511c9755c3a3360ba869772600c7aae048a7ffcAndreas Huber virtual String8 getMIMEType() const; 506511c9755c3a3360ba869772600c7aae048a7ffcAndreas Huber 515994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber //////////////////////////////////////////////////////////////////////////// 525994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 535994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber size_t cachedSize(); 54a53d87c7b1428fe02f535c31dafd64cb1362fde9Andreas Huber size_t approxDataRemaining(status_t *finalStatus) const; 555994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 5634ef0f32c8fc0186236a27e07405328cc1f7c56dAndreas Huber void resumeFetchingIfNecessary(); 57b33d2ac90cfce0fe6db8c3e979e7ae2bbfc28163James Dong 58b33d2ac90cfce0fe6db8c3e979e7ae2bbfc28163James Dong // The following methods are supported only if the 59b33d2ac90cfce0fe6db8c3e979e7ae2bbfc28163James Dong // data source is HTTP-based; otherwise, ERROR_UNSUPPORTED 60b33d2ac90cfce0fe6db8c3e979e7ae2bbfc28163James Dong // is returned. 615b1b8a93a07326f1cbc627f09e02988375189e0aJames Dong status_t getEstimatedBandwidthKbps(int32_t *kbps); 62b33d2ac90cfce0fe6db8c3e979e7ae2bbfc28163James Dong status_t setCacheStatCollectFreq(int32_t freqMs); 6334ef0f32c8fc0186236a27e07405328cc1f7c56dAndreas Huber 6449c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber static void RemoveCacheSpecificHeaders( 6549c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber KeyedVector<String8, String8> *headers, 6649c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber String8 *cacheConfig, 6749c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber bool *disconnectAtHighwatermark); 6849c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber 695994b4798b01f3dd340577c9ea9657f09093a770Andreas Huberprotected: 705994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber virtual ~NuCachedSource2(); 715994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 725994b4798b01f3dd340577c9ea9657f09093a770Andreas Huberprivate: 735994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber friend struct AHandlerReflector<NuCachedSource2>; 745994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 755994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber enum { 76a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber kPageSize = 65536, 77a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber kDefaultHighWaterThreshold = 20 * 1024 * 1024, 78a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber kDefaultLowWaterThreshold = 4 * 1024 * 1024, 79a5273ebd1746368662a597643d6701a5046d5c7bAndreas Huber 80a5273ebd1746368662a597643d6701a5046d5c7bAndreas Huber // Read data after a 15 sec timeout whether we're actively 81a5273ebd1746368662a597643d6701a5046d5c7bAndreas Huber // fetching or not. 82a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber kDefaultKeepAliveIntervalUs = 15000000, 835994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber }; 845994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 855994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber enum { 865994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber kWhatFetchMore = 'fetc', 875994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber kWhatRead = 'read', 885994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber }; 895994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 900683eba6b35c396c21f10e926709f2f8fc05f090Andreas Huber enum { 910683eba6b35c396c21f10e926709f2f8fc05f090Andreas Huber kMaxNumRetries = 10, 920683eba6b35c396c21f10e926709f2f8fc05f090Andreas Huber }; 930683eba6b35c396c21f10e926709f2f8fc05f090Andreas Huber 945994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber sp<DataSource> mSource; 955994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber sp<AHandlerReflector<NuCachedSource2> > mReflector; 965994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber sp<ALooper> mLooper; 975994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 985994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber Mutex mSerializer; 99a53d87c7b1428fe02f535c31dafd64cb1362fde9Andreas Huber mutable Mutex mLock; 1005994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber Condition mCondition; 1015994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 1025994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber PageCache *mCache; 103c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mCacheOffset; 1045994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber status_t mFinalStatus; 105c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mLastAccessPos; 1065994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber sp<AMessage> mAsyncResult; 1075994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber bool mFetching; 10848296b792a8d68358de74141fa80bd5bd84d0307Chong Zhang bool mDisconnecting; 109a5273ebd1746368662a597643d6701a5046d5c7bAndreas Huber int64_t mLastFetchTimeUs; 1105994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 1110683eba6b35c396c21f10e926709f2f8fc05f090Andreas Huber int32_t mNumRetriesLeft; 1120683eba6b35c396c21f10e926709f2f8fc05f090Andreas Huber 113a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber size_t mHighwaterThresholdBytes; 114a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber size_t mLowwaterThresholdBytes; 115a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber 116a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber // If the keep-alive interval is 0, keep-alives are disabled. 117a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber int64_t mKeepAliveIntervalUs; 118a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber 11949c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber bool mDisconnectAtHighwatermark; 12049c59815369616b0fd5451ccabd377e8fe1dc3faAndreas Huber 1215994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber void onMessageReceived(const sp<AMessage> &msg); 1225994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber void onFetch(); 1235994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber void onRead(const sp<AMessage> &msg); 1245994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 1255994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber void fetchInternal(); 126c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong ssize_t readInternal(off64_t offset, void *data, size_t size); 127c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong status_t seekInternal_l(off64_t offset); 1285994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 129a53d87c7b1428fe02f535c31dafd64cb1362fde9Andreas Huber size_t approxDataRemaining_l(status_t *finalStatus) const; 1307bf8413f91fc072452f315a91618aeef2574d420Andreas Huber 1317bf8413f91fc072452f315a91618aeef2574d420Andreas Huber void restartPrefetcherIfNecessary_l( 1327bf8413f91fc072452f315a91618aeef2574d420Andreas Huber bool ignoreLowWaterThreshold = false, bool force = false); 1335994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 134a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber void updateCacheParamsFromSystemProperty(); 135a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber void updateCacheParamsFromString(const char *s); 136a045cb0e77097120e86e367e1cab5494ce2a5d5eAndreas Huber 1375994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(NuCachedSource2); 1385994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber}; 1395994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 1405994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber} // namespace android 1415994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber 1425994b4798b01f3dd340577c9ea9657f09093a770Andreas Huber#endif // NU_CACHED_SOURCE_2_H_ 143