NuPlayerSource.h revision 1713460104b86f6be3a5d9993d9ace864d889b2d
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef NUPLAYER_SOURCE_H_ 18 19#define NUPLAYER_SOURCE_H_ 20 21#include "NuPlayer.h" 22 23#include <media/stagefright/foundation/AMessage.h> 24#include <media/stagefright/MetaData.h> 25#include <media/mediaplayer.h> 26#include <utils/Vector.h> 27 28namespace android { 29 30struct ABuffer; 31struct MetaData; 32struct MediaBuffer; 33 34struct NuPlayer::Source : public AHandler { 35 enum Flags { 36 FLAG_CAN_PAUSE = 1, 37 FLAG_CAN_SEEK_BACKWARD = 2, // the "10 sec back button" 38 FLAG_CAN_SEEK_FORWARD = 4, // the "10 sec forward button" 39 FLAG_CAN_SEEK = 8, // the "seek bar" 40 FLAG_DYNAMIC_DURATION = 16, 41 FLAG_SECURE = 32, 42 FLAG_PROTECTED = 64, 43 }; 44 45 enum { 46 kWhatPrepared, 47 kWhatFlagsChanged, 48 kWhatVideoSizeChanged, 49 kWhatBufferingUpdate, 50 kWhatBufferingStart, 51 kWhatBufferingEnd, 52 kWhatSubtitleData, 53 kWhatTimedTextData, 54 kWhatQueueDecoderShutdown, 55 kWhatDrmNoLicense, 56 }; 57 58 // The provides message is used to notify the player about various 59 // events. 60 Source(const sp<AMessage> ¬ify) 61 : mNotify(notify) { 62 } 63 64 virtual void prepareAsync() = 0; 65 66 virtual void start() = 0; 67 virtual void stop() {} 68 virtual void pause() {} 69 virtual void resume() {} 70 71 // Explicitly disconnect the underling data source 72 virtual void disconnect() {} 73 74 // Returns OK iff more data was available, 75 // an error or ERROR_END_OF_STREAM if not. 76 virtual status_t feedMoreTSData() = 0; 77 78 virtual sp<AMessage> getFormat(bool audio); 79 virtual sp<MetaData> getFormatMeta(bool /* audio */) { return NULL; } 80 virtual sp<MetaData> getFileFormatMeta() const { return NULL; } 81 82 virtual status_t dequeueAccessUnit( 83 bool audio, sp<ABuffer> *accessUnit) = 0; 84 85 virtual status_t getDuration(int64_t * /* durationUs */) { 86 return INVALID_OPERATION; 87 } 88 89 virtual size_t getTrackCount() const { 90 return 0; 91 } 92 93 virtual sp<AMessage> getTrackInfo(size_t /* trackIndex */) const { 94 return NULL; 95 } 96 97 virtual ssize_t getSelectedTrack(media_track_type /* type */) const { 98 return INVALID_OPERATION; 99 } 100 101 virtual status_t selectTrack(size_t /* trackIndex */, bool /* select */, int64_t /* timeUs*/) { 102 return INVALID_OPERATION; 103 } 104 105 virtual status_t seekTo(int64_t /* seekTimeUs */) { 106 return INVALID_OPERATION; 107 } 108 109 virtual status_t setBuffers(bool /* audio */, Vector<MediaBuffer *> &/* buffers */) { 110 return INVALID_OPERATION; 111 } 112 113 virtual bool isRealTime() const { 114 return false; 115 } 116 117protected: 118 virtual ~Source() {} 119 120 virtual void onMessageReceived(const sp<AMessage> &msg); 121 122 sp<AMessage> dupNotify() const { return mNotify->dup(); } 123 124 void notifyFlagsChanged(uint32_t flags); 125 void notifyVideoSizeChanged(const sp<AMessage> &format = NULL); 126 void notifyPrepared(status_t err = OK); 127 128private: 129 sp<AMessage> mNotify; 130 131 DISALLOW_EVIL_CONSTRUCTORS(Source); 132}; 133 134} // namespace android 135 136#endif // NUPLAYER_SOURCE_H_ 137 138