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1 /*
2  ** Copyright (C) 2008 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  **
15  ** limitations under the License.
16  */
17 
18 #ifndef ANDROID_MEDIARECORDER_H
19 #define ANDROID_MEDIARECORDER_H
20 
21 #include <utils/Log.h>
22 #include <utils/threads.h>
23 #include <utils/List.h>
24 #include <utils/Errors.h>
25 #include <media/IMediaRecorderClient.h>
26 #include <media/IMediaDeathNotifier.h>
27 
28 namespace android {
29 
30 class Surface;
31 class IMediaRecorder;
32 class ICamera;
33 class ICameraRecordingProxy;
34 class IGraphicBufferProducer;
35 class Surface;
36 
37 typedef void (*media_completion_f)(status_t status, void *cookie);
38 
39 enum video_source {
40     VIDEO_SOURCE_DEFAULT = 0,
41     VIDEO_SOURCE_CAMERA = 1,
42     VIDEO_SOURCE_SURFACE = 2,
43 
44     VIDEO_SOURCE_LIST_END  // must be last - used to validate audio source type
45 };
46 
47 //Please update media/java/android/media/MediaRecorder.java if the following is updated.
48 enum output_format {
49     OUTPUT_FORMAT_DEFAULT = 0,
50     OUTPUT_FORMAT_THREE_GPP = 1,
51     OUTPUT_FORMAT_MPEG_4 = 2,
52 
53 
54     OUTPUT_FORMAT_AUDIO_ONLY_START = 3, // Used in validating the output format.  Should be the
55                                         //  at the start of the audio only output formats.
56 
57     /* These are audio only file formats */
58     OUTPUT_FORMAT_RAW_AMR = 3, //to be backward compatible
59     OUTPUT_FORMAT_AMR_NB = 3,
60     OUTPUT_FORMAT_AMR_WB = 4,
61     OUTPUT_FORMAT_AAC_ADIF = 5,
62     OUTPUT_FORMAT_AAC_ADTS = 6,
63 
64     OUTPUT_FORMAT_AUDIO_ONLY_END = 7, // Used in validating the output format.  Should be the
65                                       //  at the end of the audio only output formats.
66 
67     /* Stream over a socket, limited to a single stream */
68     OUTPUT_FORMAT_RTP_AVP = 7,
69 
70     /* H.264/AAC data encapsulated in MPEG2/TS */
71     OUTPUT_FORMAT_MPEG2TS = 8,
72 
73     /* VP8/VORBIS data in a WEBM container */
74     OUTPUT_FORMAT_WEBM = 9,
75 
76     OUTPUT_FORMAT_LIST_END // must be last - used to validate format type
77 };
78 
79 enum audio_encoder {
80     AUDIO_ENCODER_DEFAULT = 0,
81     AUDIO_ENCODER_AMR_NB = 1,
82     AUDIO_ENCODER_AMR_WB = 2,
83     AUDIO_ENCODER_AAC = 3,
84     AUDIO_ENCODER_HE_AAC = 4,
85     AUDIO_ENCODER_AAC_ELD = 5,
86     AUDIO_ENCODER_VORBIS = 6,
87 
88     AUDIO_ENCODER_LIST_END // must be the last - used to validate the audio encoder type
89 };
90 
91 enum video_encoder {
92     VIDEO_ENCODER_DEFAULT = 0,
93     VIDEO_ENCODER_H263 = 1,
94     VIDEO_ENCODER_H264 = 2,
95     VIDEO_ENCODER_MPEG_4_SP = 3,
96     VIDEO_ENCODER_VP8 = 4,
97 
98     VIDEO_ENCODER_LIST_END // must be the last - used to validate the video encoder type
99 };
100 
101 /*
102  * The state machine of the media_recorder.
103  */
104 enum media_recorder_states {
105     // Error state.
106     MEDIA_RECORDER_ERROR                 =      0,
107 
108     // Recorder was just created.
109     MEDIA_RECORDER_IDLE                  = 1 << 0,
110 
111     // Recorder has been initialized.
112     MEDIA_RECORDER_INITIALIZED           = 1 << 1,
113 
114     // Configuration of the recorder has been completed.
115     MEDIA_RECORDER_DATASOURCE_CONFIGURED = 1 << 2,
116 
117     // Recorder is ready to start.
118     MEDIA_RECORDER_PREPARED              = 1 << 3,
119 
120     // Recording is in progress.
121     MEDIA_RECORDER_RECORDING             = 1 << 4,
122 };
123 
124 // The "msg" code passed to the listener in notify.
125 enum media_recorder_event_type {
126     MEDIA_RECORDER_EVENT_LIST_START               = 1,
127     MEDIA_RECORDER_EVENT_ERROR                    = 1,
128     MEDIA_RECORDER_EVENT_INFO                     = 2,
129     MEDIA_RECORDER_EVENT_LIST_END                 = 99,
130 
131     // Track related event types
132     MEDIA_RECORDER_TRACK_EVENT_LIST_START         = 100,
133     MEDIA_RECORDER_TRACK_EVENT_ERROR              = 100,
134     MEDIA_RECORDER_TRACK_EVENT_INFO               = 101,
135     MEDIA_RECORDER_TRACK_EVENT_LIST_END           = 1000,
136 };
137 
138 /*
139  * The (part of) "what" code passed to the listener in notify.
140  * When the error or info type is track specific, the what has
141  * the following layout:
142  * the left-most 16-bit is meant for error or info type.
143  * the right-most 4-bit is meant for track id.
144  * the rest is reserved.
145  *
146  * | track id | reserved |     error or info type     |
147  * 31         28         16                           0
148  *
149  */
150 enum media_recorder_error_type {
151     MEDIA_RECORDER_ERROR_UNKNOWN                   = 1,
152 
153     // Track related error type
154     MEDIA_RECORDER_TRACK_ERROR_LIST_START          = 100,
155     MEDIA_RECORDER_TRACK_ERROR_GENERAL             = 100,
156     MEDIA_RECORDER_ERROR_VIDEO_NO_SYNC_FRAME       = 200,
157     MEDIA_RECORDER_TRACK_ERROR_LIST_END            = 1000,
158 };
159 
160 // The codes are distributed as follow:
161 //   0xx: Reserved
162 //   8xx: General info/warning
163 //
164 enum media_recorder_info_type {
165     MEDIA_RECORDER_INFO_UNKNOWN                   = 1,
166 
167     MEDIA_RECORDER_INFO_MAX_DURATION_REACHED      = 800,
168     MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED      = 801,
169 
170     // All track related informtional events start here
171     MEDIA_RECORDER_TRACK_INFO_LIST_START           = 1000,
172     MEDIA_RECORDER_TRACK_INFO_COMPLETION_STATUS    = 1000,
173     MEDIA_RECORDER_TRACK_INFO_PROGRESS_IN_TIME     = 1001,
174     MEDIA_RECORDER_TRACK_INFO_TYPE                 = 1002,
175     MEDIA_RECORDER_TRACK_INFO_DURATION_MS          = 1003,
176 
177     // The time to measure the max chunk duration
178     MEDIA_RECORDER_TRACK_INFO_MAX_CHUNK_DUR_MS     = 1004,
179 
180     MEDIA_RECORDER_TRACK_INFO_ENCODED_FRAMES       = 1005,
181 
182     // The time to measure how well the audio and video
183     // track data is interleaved.
184     MEDIA_RECORDER_TRACK_INTER_CHUNK_TIME_MS       = 1006,
185 
186     // The time to measure system response. Note that
187     // the delay does not include the intentional delay
188     // we use to eliminate the recording sound.
189     MEDIA_RECORDER_TRACK_INFO_INITIAL_DELAY_MS     = 1007,
190 
191     // The time used to compensate for initial A/V sync.
192     MEDIA_RECORDER_TRACK_INFO_START_OFFSET_MS      = 1008,
193 
194     // Total number of bytes of the media data.
195     MEDIA_RECORDER_TRACK_INFO_DATA_KBYTES          = 1009,
196 
197     MEDIA_RECORDER_TRACK_INFO_LIST_END             = 2000,
198 };
199 
200 // ----------------------------------------------------------------------------
201 // ref-counted object for callbacks
202 class MediaRecorderListener: virtual public RefBase
203 {
204 public:
205     virtual void notify(int msg, int ext1, int ext2) = 0;
206 };
207 
208 class MediaRecorder : public BnMediaRecorderClient,
209                       public virtual IMediaDeathNotifier
210 {
211 public:
212     MediaRecorder();
213     ~MediaRecorder();
214 
215     void        died();
216     status_t    initCheck();
217     status_t    setCamera(const sp<ICamera>& camera, const sp<ICameraRecordingProxy>& proxy);
218     status_t    setPreviewSurface(const sp<IGraphicBufferProducer>& surface);
219     status_t    setVideoSource(int vs);
220     status_t    setAudioSource(int as);
221     status_t    setOutputFormat(int of);
222     status_t    setVideoEncoder(int ve);
223     status_t    setAudioEncoder(int ae);
224     status_t    setOutputFile(const char* path);
225     status_t    setOutputFile(int fd, int64_t offset, int64_t length);
226     status_t    setVideoSize(int width, int height);
227     status_t    setVideoFrameRate(int frames_per_second);
228     status_t    setParameters(const String8& params);
229     status_t    setListener(const sp<MediaRecorderListener>& listener);
230     status_t    setClientName(const String16& clientName);
231     status_t    prepare();
232     status_t    getMaxAmplitude(int* max);
233     status_t    start();
234     status_t    stop();
235     status_t    reset();
236     status_t    init();
237     status_t    close();
238     status_t    release();
239     void        notify(int msg, int ext1, int ext2);
240     sp<IGraphicBufferProducer>     querySurfaceMediaSourceFromMediaServer();
241 
242 private:
243     void                    doCleanUp();
244     status_t                doReset();
245 
246     sp<IMediaRecorder>          mMediaRecorder;
247     sp<MediaRecorderListener>   mListener;
248 
249     // Reference to IGraphicBufferProducer
250     // for encoding GL Frames. That is useful only when the
251     // video source is set to VIDEO_SOURCE_GRALLOC_BUFFER
252     sp<IGraphicBufferProducer>  mSurfaceMediaSource;
253 
254     media_recorder_states       mCurrentState;
255     bool                        mIsAudioSourceSet;
256     bool                        mIsVideoSourceSet;
257     bool                        mIsAudioEncoderSet;
258     bool                        mIsVideoEncoderSet;
259     bool                        mIsOutputFileSet;
260     Mutex                       mLock;
261     Mutex                       mNotifyLock;
262 };
263 
264 };  // namespace android
265 
266 #endif // ANDROID_MEDIARECORDER_H
267