mediaplayer.h revision 7a8b0ed6419e57dd8b41d3806893d63d3df91aab
1/* 2 * Copyright (C) 2007 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 ANDROID_MEDIAPLAYER_H 18#define ANDROID_MEDIAPLAYER_H 19 20#include <binder/IMemory.h> 21#include <media/IMediaPlayerClient.h> 22#include <media/IMediaPlayer.h> 23#include <media/IMediaDeathNotifier.h> 24#include <media/IStreamSource.h> 25 26#include <utils/KeyedVector.h> 27#include <utils/String8.h> 28 29class ANativeWindow; 30 31namespace android { 32 33class Surface; 34class ISurfaceTexture; 35 36enum media_event_type { 37 MEDIA_NOP = 0, // interface test message 38 MEDIA_PREPARED = 1, 39 MEDIA_PLAYBACK_COMPLETE = 2, 40 MEDIA_BUFFERING_UPDATE = 3, 41 MEDIA_SEEK_COMPLETE = 4, 42 MEDIA_SET_VIDEO_SIZE = 5, 43 MEDIA_TIMED_TEXT = 99, 44 MEDIA_ERROR = 100, 45 MEDIA_INFO = 200, 46}; 47 48// Generic error codes for the media player framework. Errors are fatal, the 49// playback must abort. 50// 51// Errors are communicated back to the client using the 52// MediaPlayerListener::notify method defined below. 53// In this situation, 'notify' is invoked with the following: 54// 'msg' is set to MEDIA_ERROR. 55// 'ext1' should be a value from the enum media_error_type. 56// 'ext2' contains an implementation dependant error code to provide 57// more details. Should default to 0 when not used. 58// 59// The codes are distributed as follow: 60// 0xx: Reserved 61// 1xx: Android Player errors. Something went wrong inside the MediaPlayer. 62// 2xx: Media errors (e.g Codec not supported). There is a problem with the 63// media itself. 64// 3xx: Runtime errors. Some extraordinary condition arose making the playback 65// impossible. 66// 67enum media_error_type { 68 // 0xx 69 MEDIA_ERROR_UNKNOWN = 1, 70 // 1xx 71 MEDIA_ERROR_SERVER_DIED = 100, 72 // 2xx 73 MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK = 200, 74 // 3xx 75}; 76 77 78// Info and warning codes for the media player framework. These are non fatal, 79// the playback is going on but there might be some user visible issues. 80// 81// Info and warning messages are communicated back to the client using the 82// MediaPlayerListener::notify method defined below. In this situation, 83// 'notify' is invoked with the following: 84// 'msg' is set to MEDIA_INFO. 85// 'ext1' should be a value from the enum media_info_type. 86// 'ext2' contains an implementation dependant info code to provide 87// more details. Should default to 0 when not used. 88// 89// The codes are distributed as follow: 90// 0xx: Reserved 91// 7xx: Android Player info/warning (e.g player lagging behind.) 92// 8xx: Media info/warning (e.g media badly interleaved.) 93// 94enum media_info_type { 95 // 0xx 96 MEDIA_INFO_UNKNOWN = 1, 97 // 7xx 98 // The video is too complex for the decoder: it can't decode frames fast 99 // enough. Possibly only the audio plays fine at this stage. 100 MEDIA_INFO_VIDEO_TRACK_LAGGING = 700, 101 // MediaPlayer is temporarily pausing playback internally in order to 102 // buffer more data. 103 MEDIA_INFO_BUFFERING_START = 701, 104 // MediaPlayer is resuming playback after filling buffers. 105 MEDIA_INFO_BUFFERING_END = 702, 106 // Bandwidth in recent past 107 MEDIA_INFO_NETWORK_BANDWIDTH = 703, 108 109 // 8xx 110 // Bad interleaving means that a media has been improperly interleaved or not 111 // interleaved at all, e.g has all the video samples first then all the audio 112 // ones. Video is playing but a lot of disk seek may be happening. 113 MEDIA_INFO_BAD_INTERLEAVING = 800, 114 // The media is not seekable (e.g live stream). 115 MEDIA_INFO_NOT_SEEKABLE = 801, 116 // New media metadata is available. 117 MEDIA_INFO_METADATA_UPDATE = 802, 118}; 119 120 121 122enum media_player_states { 123 MEDIA_PLAYER_STATE_ERROR = 0, 124 MEDIA_PLAYER_IDLE = 1 << 0, 125 MEDIA_PLAYER_INITIALIZED = 1 << 1, 126 MEDIA_PLAYER_PREPARING = 1 << 2, 127 MEDIA_PLAYER_PREPARED = 1 << 3, 128 MEDIA_PLAYER_STARTED = 1 << 4, 129 MEDIA_PLAYER_PAUSED = 1 << 5, 130 MEDIA_PLAYER_STOPPED = 1 << 6, 131 MEDIA_PLAYER_PLAYBACK_COMPLETE = 1 << 7 132}; 133 134// Keep KEY_PARAMETER_* in sync with MediaPlayer.java. 135// The same enum space is used for both set and get, in case there are future keys that 136// can be both set and get. But as of now, all parameters are either set only or get only. 137enum media_parameter_keys { 138 KEY_PARAMETER_TIMED_TEXT_TRACK_INDEX = 1000, // set only 139 KEY_PARAMETER_TIMED_TEXT_ADD_OUT_OF_BAND_SOURCE = 1001, // set only 140 141 // Streaming/buffering parameters 142 KEY_PARAMETER_CACHE_STAT_COLLECT_FREQ_MS = 1100, // set only 143 144 // Return a Parcel containing a single int, which is the channel count of the 145 // audio track, or zero for error (e.g. no audio track) or unknown. 146 KEY_PARAMETER_AUDIO_CHANNEL_COUNT = 1200, // get only 147 148 // Playback rate expressed in permille (1000 is normal speed), saved as int32_t, with negative 149 // values used for rewinding or reverse playback. 150 KEY_PARAMETER_PLAYBACK_RATE_PERMILLE = 1300, // set only 151}; 152 153// ---------------------------------------------------------------------------- 154// ref-counted object for callbacks 155class MediaPlayerListener: virtual public RefBase 156{ 157public: 158 virtual void notify(int msg, int ext1, int ext2, const Parcel *obj) = 0; 159}; 160 161class MediaPlayer : public BnMediaPlayerClient, 162 public virtual IMediaDeathNotifier 163{ 164public: 165 MediaPlayer(); 166 ~MediaPlayer(); 167 void died(); 168 void disconnect(); 169 170 status_t setDataSource( 171 const char *url, 172 const KeyedVector<String8, String8> *headers); 173 174 status_t setDataSource(int fd, int64_t offset, int64_t length); 175 status_t setDataSource(const sp<IStreamSource> &source); 176 status_t setVideoSurfaceTexture( 177 const sp<ISurfaceTexture>& surfaceTexture); 178 status_t setListener(const sp<MediaPlayerListener>& listener); 179 status_t prepare(); 180 status_t prepareAsync(); 181 status_t start(); 182 status_t stop(); 183 status_t pause(); 184 bool isPlaying(); 185 status_t getVideoWidth(int *w); 186 status_t getVideoHeight(int *h); 187 status_t seekTo(int msec); 188 status_t getCurrentPosition(int *msec); 189 status_t getDuration(int *msec); 190 status_t reset(); 191 status_t setAudioStreamType(audio_stream_type_t type); 192 status_t setLooping(int loop); 193 bool isLooping(); 194 status_t setVolume(float leftVolume, float rightVolume); 195 void notify(int msg, int ext1, int ext2, const Parcel *obj = NULL); 196 static sp<IMemory> decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat); 197 static sp<IMemory> decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat); 198 status_t invoke(const Parcel& request, Parcel *reply); 199 status_t setMetadataFilter(const Parcel& filter); 200 status_t getMetadata(bool update_only, bool apply_filter, Parcel *metadata); 201 status_t setAudioSessionId(int sessionId); 202 int getAudioSessionId(); 203 status_t setAuxEffectSendLevel(float level); 204 status_t attachAuxEffect(int effectId); 205 status_t setParameter(int key, const Parcel& request); 206 status_t getParameter(int key, Parcel* reply); 207 208private: 209 void clear_l(); 210 status_t seekTo_l(int msec); 211 status_t prepareAsync_l(); 212 status_t getDuration_l(int *msec); 213 status_t attachNewPlayer(const sp<IMediaPlayer>& player); 214 status_t reset_l(); 215 216 sp<IMediaPlayer> mPlayer; 217 thread_id_t mLockThreadId; 218 Mutex mLock; 219 Mutex mNotifyLock; 220 Condition mSignal; 221 sp<MediaPlayerListener> mListener; 222 void* mCookie; 223 media_player_states mCurrentState; 224 int mDuration; 225 int mCurrentPosition; 226 int mSeekPosition; 227 bool mPrepareSync; 228 status_t mPrepareStatus; 229 audio_stream_type_t mStreamType; 230 bool mLoop; 231 float mLeftVolume; 232 float mRightVolume; 233 int mVideoWidth; 234 int mVideoHeight; 235 int mAudioSessionId; 236 float mSendLevel; 237}; 238 239}; // namespace android 240 241#endif // ANDROID_MEDIAPLAYER_H 242