/* * 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 NUPLAYER_SOURCE_H_ #define NUPLAYER_SOURCE_H_ #include "NuPlayer.h" #include <media/stagefright/foundation/AMessage.h> namespace android { struct ABuffer; struct MetaData; struct NuPlayer::Source : public AHandler { enum Flags { FLAG_CAN_PAUSE = 1, FLAG_CAN_SEEK_BACKWARD = 2, // the "10 sec back button" FLAG_CAN_SEEK_FORWARD = 4, // the "10 sec forward button" FLAG_CAN_SEEK = 8, // the "seek bar" FLAG_DYNAMIC_DURATION = 16, }; enum { kWhatPrepared, kWhatFlagsChanged, kWhatVideoSizeChanged, kWhatBufferingStart, kWhatBufferingEnd, }; // The provides message is used to notify the player about various // events. Source(const sp<AMessage> ¬ify) : mNotify(notify) { } virtual void prepareAsync() = 0; virtual void start() = 0; virtual void stop() {} virtual void pause() {} virtual void resume() {} // Returns OK iff more data was available, // an error or ERROR_END_OF_STREAM if not. virtual status_t feedMoreTSData() = 0; virtual sp<AMessage> getFormat(bool audio); virtual status_t dequeueAccessUnit( bool audio, sp<ABuffer> *accessUnit) = 0; virtual status_t getDuration(int64_t *durationUs) { return INVALID_OPERATION; } virtual status_t seekTo(int64_t seekTimeUs) { return INVALID_OPERATION; } virtual bool isRealTime() const { return false; } protected: virtual ~Source() {} virtual void onMessageReceived(const sp<AMessage> &msg); virtual sp<MetaData> getFormatMeta(bool audio) { return NULL; } sp<AMessage> dupNotify() const { return mNotify->dup(); } void notifyFlagsChanged(uint32_t flags); void notifyVideoSizeChanged(int32_t width, int32_t height); void notifyPrepared(status_t err = OK); private: sp<AMessage> mNotify; DISALLOW_EVIL_CONSTRUCTORS(Source); }; } // namespace android #endif // NUPLAYER_SOURCE_H_