| /* |
| * Copyright (C) 2010 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 WVM_EXTRACTOR_H_ |
| |
| #define WVM_EXTRACTOR_H_ |
| |
| #include <media/stagefright/DataSource.h> |
| #include <media/stagefright/MediaExtractor.h> |
| #include <utils/Errors.h> |
| |
| namespace android { |
| |
| class DataSource; |
| |
| class WVMLoadableExtractor : public MediaExtractor { |
| public: |
| WVMLoadableExtractor() {} |
| virtual ~WVMLoadableExtractor() {} |
| |
| virtual int64_t getCachedDurationUs(status_t *finalStatus) = 0; |
| virtual void setAdaptiveStreamingMode(bool adaptive) = 0; |
| }; |
| |
| class WVMExtractor : public MediaExtractor { |
| public: |
| WVMExtractor(const sp<DataSource> &source); |
| |
| virtual size_t countTracks(); |
| virtual sp<MediaSource> getTrack(size_t index); |
| virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags); |
| virtual sp<MetaData> getMetaData(); |
| |
| // Return the amount of data cached from the current |
| // playback positiion (in us). |
| // While more data is still being fetched *finalStatus == OK, |
| // Once fetching is completed (no more data available), *finalStatus != OK |
| // If fetching completed normally (i.e. reached EOS instead of IO error) |
| // *finalStatus == ERROR_END_OF_STREAM |
| int64_t getCachedDurationUs(status_t *finalStatus); |
| |
| // Set to use adaptive streaming mode by the WV component. |
| // If adaptive == true, adaptive streaming mode will be used. |
| // Default mode is non-adaptive streaming mode. |
| // Should set to use adaptive streaming mode only if widevine:// protocol |
| // is used. |
| void setAdaptiveStreamingMode(bool adaptive); |
| |
| protected: |
| virtual ~WVMExtractor(); |
| |
| private: |
| sp<DataSource> mDataSource; |
| sp<WVMLoadableExtractor> mImpl; |
| |
| WVMExtractor(const WVMExtractor &); |
| WVMExtractor &operator=(const WVMExtractor &); |
| |
| static Mutex sMutex; |
| static uint32_t sActiveExtractors; |
| static void *sVendorLibHandle; |
| }; |
| |
| } // namespace android |
| |
| #endif // DRM_EXTRACTOR_H_ |
| |