StagefrightRecorder.cpp revision 9c075bca0b75093ca0514a3c8f74d73c8e9e83fd 
1/*
2 * Copyright (C) 2009 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//#define LOG_NDEBUG 0
18#define LOG_TAG "StagefrightRecorder"
19#include <utils/Log.h>
20
21#include "StagefrightRecorder.h"
22
23#include <binder/IPCThreadState.h>
24#include <media/stagefright/AudioSource.h>
25#include <media/stagefright/AMRWriter.h>
26#include <media/stagefright/CameraSource.h>
27#include <media/stagefright/CameraSourceTimeLapse.h>
28#include <media/stagefright/MediaSourceSplitter.h>
29#include <media/stagefright/MPEG4Writer.h>
30#include <media/stagefright/MediaDebug.h>
31#include <media/stagefright/MediaDefs.h>
32#include <media/stagefright/MetaData.h>
33#include <media/stagefright/OMXClient.h>
34#include <media/stagefright/OMXCodec.h>
35#include <media/MediaProfiles.h>
36#include <camera/ICamera.h>
37#include <camera/Camera.h>
38#include <camera/CameraParameters.h>
39#include <surfaceflinger/Surface.h>
40#include <utils/Errors.h>
41#include <sys/types.h>
42#include <ctype.h>
43#include <unistd.h>
44
45#include "ARTPWriter.h"
46
47namespace android {
48
49StagefrightRecorder::StagefrightRecorder()
50    : mWriter(NULL), mWriterAux(NULL),
51      mOutputFd(-1), mOutputFdAux(-1) {
52
53    LOGV("Constructor");
54    reset();
55}
56
57StagefrightRecorder::~StagefrightRecorder() {
58    LOGV("Destructor");
59    stop();
60}
61
62status_t StagefrightRecorder::init() {
63    LOGV("init");
64    return OK;
65}
66
67status_t StagefrightRecorder::setAudioSource(audio_source as) {
68    LOGV("setAudioSource: %d", as);
69    if (as < AUDIO_SOURCE_DEFAULT ||
70        as >= AUDIO_SOURCE_LIST_END) {
71        LOGE("Invalid audio source: %d", as);
72        return BAD_VALUE;
73    }
74
75    if (as == AUDIO_SOURCE_DEFAULT) {
76        mAudioSource = AUDIO_SOURCE_MIC;
77    } else {
78        mAudioSource = as;
79    }
80
81    return OK;
82}
83
84status_t StagefrightRecorder::setVideoSource(video_source vs) {
85    LOGV("setVideoSource: %d", vs);
86    if (vs < VIDEO_SOURCE_DEFAULT ||
87        vs >= VIDEO_SOURCE_LIST_END) {
88        LOGE("Invalid video source: %d", vs);
89        return BAD_VALUE;
90    }
91
92    if (vs == VIDEO_SOURCE_DEFAULT) {
93        mVideoSource = VIDEO_SOURCE_CAMERA;
94    } else {
95        mVideoSource = vs;
96    }
97
98    return OK;
99}
100
101status_t StagefrightRecorder::setOutputFormat(output_format of) {
102    LOGV("setOutputFormat: %d", of);
103    if (of < OUTPUT_FORMAT_DEFAULT ||
104        of >= OUTPUT_FORMAT_LIST_END) {
105        LOGE("Invalid output format: %d", of);
106        return BAD_VALUE;
107    }
108
109    if (of == OUTPUT_FORMAT_DEFAULT) {
110        mOutputFormat = OUTPUT_FORMAT_THREE_GPP;
111    } else {
112        mOutputFormat = of;
113    }
114
115    return OK;
116}
117
118status_t StagefrightRecorder::setAudioEncoder(audio_encoder ae) {
119    LOGV("setAudioEncoder: %d", ae);
120    if (ae < AUDIO_ENCODER_DEFAULT ||
121        ae >= AUDIO_ENCODER_LIST_END) {
122        LOGE("Invalid audio encoder: %d", ae);
123        return BAD_VALUE;
124    }
125
126    if (ae == AUDIO_ENCODER_DEFAULT) {
127        mAudioEncoder = AUDIO_ENCODER_AMR_NB;
128    } else {
129        mAudioEncoder = ae;
130    }
131
132    return OK;
133}
134
135status_t StagefrightRecorder::setVideoEncoder(video_encoder ve) {
136    LOGV("setVideoEncoder: %d", ve);
137    if (ve < VIDEO_ENCODER_DEFAULT ||
138        ve >= VIDEO_ENCODER_LIST_END) {
139        LOGE("Invalid video encoder: %d", ve);
140        return BAD_VALUE;
141    }
142
143    if (ve == VIDEO_ENCODER_DEFAULT) {
144        mVideoEncoder = VIDEO_ENCODER_H263;
145    } else {
146        mVideoEncoder = ve;
147    }
148
149    return OK;
150}
151
152status_t StagefrightRecorder::setVideoSize(int width, int height) {
153    LOGV("setVideoSize: %dx%d", width, height);
154    if (width <= 0 || height <= 0) {
155        LOGE("Invalid video size: %dx%d", width, height);
156        return BAD_VALUE;
157    }
158
159    // Additional check on the dimension will be performed later
160    mVideoWidth = width;
161    mVideoHeight = height;
162
163    return OK;
164}
165
166status_t StagefrightRecorder::setVideoFrameRate(int frames_per_second) {
167    LOGV("setVideoFrameRate: %d", frames_per_second);
168    if (frames_per_second <= 0 || frames_per_second > 30) {
169        LOGE("Invalid video frame rate: %d", frames_per_second);
170        return BAD_VALUE;
171    }
172
173    // Additional check on the frame rate will be performed later
174    mFrameRate = frames_per_second;
175
176    return OK;
177}
178
179status_t StagefrightRecorder::setCamera(const sp<ICamera> &camera) {
180    LOGV("setCamera");
181    if (camera == 0) {
182        LOGE("camera is NULL");
183        return BAD_VALUE;
184    }
185
186    int64_t token = IPCThreadState::self()->clearCallingIdentity();
187    mFlags &= ~FLAGS_HOT_CAMERA;
188    mCamera = Camera::create(camera);
189    if (mCamera == 0) {
190        LOGE("Unable to connect to camera");
191        IPCThreadState::self()->restoreCallingIdentity(token);
192        return -EBUSY;
193    }
194
195    LOGV("Connected to camera");
196    if (mCamera->previewEnabled()) {
197        LOGV("camera is hot");
198        mFlags |= FLAGS_HOT_CAMERA;
199    }
200    IPCThreadState::self()->restoreCallingIdentity(token);
201
202    return OK;
203}
204
205status_t StagefrightRecorder::setPreviewSurface(const sp<Surface> &surface) {
206    LOGV("setPreviewSurface: %p", surface.get());
207    mPreviewSurface = surface;
208
209    return OK;
210}
211
212status_t StagefrightRecorder::setOutputFile(const char *path) {
213    LOGE("setOutputFile(const char*) must not be called");
214    // We don't actually support this at all, as the media_server process
215    // no longer has permissions to create files.
216
217    return -EPERM;
218}
219
220status_t StagefrightRecorder::setOutputFile(int fd, int64_t offset, int64_t length) {
221    LOGV("setOutputFile: %d, %lld, %lld", fd, offset, length);
222    // These don't make any sense, do they?
223    CHECK_EQ(offset, 0);
224    CHECK_EQ(length, 0);
225
226    if (fd < 0) {
227        LOGE("Invalid file descriptor: %d", fd);
228        return -EBADF;
229    }
230
231    if (mOutputFd >= 0) {
232        ::close(mOutputFd);
233    }
234    mOutputFd = dup(fd);
235
236    return OK;
237}
238
239status_t StagefrightRecorder::setOutputFileAuxiliary(int fd) {
240    LOGV("setOutputFileAuxiliary: %d", fd);
241
242    if (fd < 0) {
243        LOGE("Invalid file descriptor: %d", fd);
244        return -EBADF;
245    }
246
247    mCaptureAuxVideo = true;
248
249    if (mOutputFdAux >= 0) {
250        ::close(mOutputFdAux);
251    }
252    mOutputFdAux = dup(fd);
253
254    return OK;
255}
256
257// Attempt to parse an int64 literal optionally surrounded by whitespace,
258// returns true on success, false otherwise.
259static bool safe_strtoi64(const char *s, int64_t *val) {
260    char *end;
261    *val = strtoll(s, &end, 10);
262
263    if (end == s || errno == ERANGE) {
264        return false;
265    }
266
267    // Skip trailing whitespace
268    while (isspace(*end)) {
269        ++end;
270    }
271
272    // For a successful return, the string must contain nothing but a valid
273    // int64 literal optionally surrounded by whitespace.
274
275    return *end == '\0';
276}
277
278// Return true if the value is in [0, 0x007FFFFFFF]
279static bool safe_strtoi32(const char *s, int32_t *val) {
280    int64_t temp;
281    if (safe_strtoi64(s, &temp)) {
282        if (temp >= 0 && temp <= 0x007FFFFFFF) {
283            *val = static_cast<int32_t>(temp);
284            return true;
285        }
286    }
287    return false;
288}
289
290// Trim both leading and trailing whitespace from the given string.
291static void TrimString(String8 *s) {
292    size_t num_bytes = s->bytes();
293    const char *data = s->string();
294
295    size_t leading_space = 0;
296    while (leading_space < num_bytes && isspace(data[leading_space])) {
297        ++leading_space;
298    }
299
300    size_t i = num_bytes;
301    while (i > leading_space && isspace(data[i - 1])) {
302        --i;
303    }
304
305    s->setTo(String8(&data[leading_space], i - leading_space));
306}
307
308status_t StagefrightRecorder::setParamAudioSamplingRate(int32_t sampleRate) {
309    LOGV("setParamAudioSamplingRate: %d", sampleRate);
310    if (sampleRate <= 0) {
311        LOGE("Invalid audio sampling rate: %d", sampleRate);
312        return BAD_VALUE;
313    }
314
315    // Additional check on the sample rate will be performed later.
316    mSampleRate = sampleRate;
317    return OK;
318}
319
320status_t StagefrightRecorder::setParamAudioNumberOfChannels(int32_t channels) {
321    LOGV("setParamAudioNumberOfChannels: %d", channels);
322    if (channels <= 0 || channels >= 3) {
323        LOGE("Invalid number of audio channels: %d", channels);
324        return BAD_VALUE;
325    }
326
327    // Additional check on the number of channels will be performed later.
328    mAudioChannels = channels;
329    return OK;
330}
331
332status_t StagefrightRecorder::setParamAudioEncodingBitRate(int32_t bitRate) {
333    LOGV("setParamAudioEncodingBitRate: %d", bitRate);
334    if (bitRate <= 0) {
335        LOGE("Invalid audio encoding bit rate: %d", bitRate);
336        return BAD_VALUE;
337    }
338
339    // The target bit rate may not be exactly the same as the requested.
340    // It depends on many factors, such as rate control, and the bit rate
341    // range that a specific encoder supports. The mismatch between the
342    // the target and requested bit rate will NOT be treated as an error.
343    mAudioBitRate = bitRate;
344    return OK;
345}
346
347status_t StagefrightRecorder::setParamVideoEncodingBitRate(int32_t bitRate) {
348    LOGV("setParamVideoEncodingBitRate: %d", bitRate);
349    if (bitRate <= 0) {
350        LOGE("Invalid video encoding bit rate: %d", bitRate);
351        return BAD_VALUE;
352    }
353
354    // The target bit rate may not be exactly the same as the requested.
355    // It depends on many factors, such as rate control, and the bit rate
356    // range that a specific encoder supports. The mismatch between the
357    // the target and requested bit rate will NOT be treated as an error.
358    mVideoBitRate = bitRate;
359    return OK;
360}
361
362status_t StagefrightRecorder::setParamMaxFileDurationUs(int64_t timeUs) {
363    LOGV("setParamMaxFileDurationUs: %lld us", timeUs);
364    if (timeUs <= 0) {
365        LOGW("Max file duration is not positive: %lld us. Disabling duration limit.", timeUs);
366        timeUs = 0; // Disable the duration limit for zero or negative values.
367    } else if (timeUs <= 100000LL) {  // XXX: 100 milli-seconds
368        LOGE("Max file duration is too short: %lld us", timeUs);
369        return BAD_VALUE;
370    }
371
372    mMaxFileDurationUs = timeUs;
373    return OK;
374}
375
376status_t StagefrightRecorder::setParamMaxFileSizeBytes(int64_t bytes) {
377    LOGV("setParamMaxFileSizeBytes: %lld bytes", bytes);
378    if (bytes <= 1024) {  // XXX: 1 kB
379        LOGE("Max file size is too small: %lld bytes", bytes);
380        return BAD_VALUE;
381    }
382    mMaxFileSizeBytes = bytes;
383    return OK;
384}
385
386status_t StagefrightRecorder::setParamInterleaveDuration(int32_t durationUs) {
387    LOGV("setParamInterleaveDuration: %d", durationUs);
388    if (durationUs <= 500000) {           //  500 ms
389        // If interleave duration is too small, it is very inefficient to do
390        // interleaving since the metadata overhead will count for a significant
391        // portion of the saved contents
392        LOGE("Audio/video interleave duration is too small: %d us", durationUs);
393        return BAD_VALUE;
394    } else if (durationUs >= 10000000) {  // 10 seconds
395        // If interleaving duration is too large, it can cause the recording
396        // session to use too much memory since we have to save the output
397        // data before we write them out
398        LOGE("Audio/video interleave duration is too large: %d us", durationUs);
399        return BAD_VALUE;
400    }
401    mInterleaveDurationUs = durationUs;
402    return OK;
403}
404
405// If seconds <  0, only the first frame is I frame, and rest are all P frames
406// If seconds == 0, all frames are encoded as I frames. No P frames
407// If seconds >  0, it is the time spacing (seconds) between 2 neighboring I frames
408status_t StagefrightRecorder::setParamVideoIFramesInterval(int32_t seconds) {
409    LOGV("setParamVideoIFramesInterval: %d seconds", seconds);
410    mIFramesIntervalSec = seconds;
411    return OK;
412}
413
414status_t StagefrightRecorder::setParam64BitFileOffset(bool use64Bit) {
415    LOGV("setParam64BitFileOffset: %s",
416        use64Bit? "use 64 bit file offset": "use 32 bit file offset");
417    mUse64BitFileOffset = use64Bit;
418    return OK;
419}
420
421status_t StagefrightRecorder::setParamVideoCameraId(int32_t cameraId) {
422    LOGV("setParamVideoCameraId: %d", cameraId);
423    if (cameraId < 0) {
424        return BAD_VALUE;
425    }
426    mCameraId = cameraId;
427    return OK;
428}
429
430status_t StagefrightRecorder::setParamTrackTimeStatus(int64_t timeDurationUs) {
431    LOGV("setParamTrackTimeStatus: %lld", timeDurationUs);
432    if (timeDurationUs < 20000) {  // Infeasible if shorter than 20 ms?
433        LOGE("Tracking time duration too short: %lld us", timeDurationUs);
434        return BAD_VALUE;
435    }
436    mTrackEveryTimeDurationUs = timeDurationUs;
437    return OK;
438}
439
440status_t StagefrightRecorder::setParamVideoEncoderProfile(int32_t profile) {
441    LOGV("setParamVideoEncoderProfile: %d", profile);
442
443    // Additional check will be done later when we load the encoder.
444    // For now, we are accepting values defined in OpenMAX IL.
445    mVideoEncoderProfile = profile;
446    return OK;
447}
448
449status_t StagefrightRecorder::setParamVideoEncoderLevel(int32_t level) {
450    LOGV("setParamVideoEncoderLevel: %d", level);
451
452    // Additional check will be done later when we load the encoder.
453    // For now, we are accepting values defined in OpenMAX IL.
454    mVideoEncoderLevel = level;
455    return OK;
456}
457
458status_t StagefrightRecorder::setParamMovieTimeScale(int32_t timeScale) {
459    LOGV("setParamMovieTimeScale: %d", timeScale);
460
461    // The range is set to be the same as the audio's time scale range
462    // since audio's time scale has a wider range.
463    if (timeScale < 600 || timeScale > 96000) {
464        LOGE("Time scale (%d) for movie is out of range [600, 96000]", timeScale);
465        return BAD_VALUE;
466    }
467    mMovieTimeScale = timeScale;
468    return OK;
469}
470
471status_t StagefrightRecorder::setParamVideoTimeScale(int32_t timeScale) {
472    LOGV("setParamVideoTimeScale: %d", timeScale);
473
474    // 60000 is chosen to make sure that each video frame from a 60-fps
475    // video has 1000 ticks.
476    if (timeScale < 600 || timeScale > 60000) {
477        LOGE("Time scale (%d) for video is out of range [600, 60000]", timeScale);
478        return BAD_VALUE;
479    }
480    mVideoTimeScale = timeScale;
481    return OK;
482}
483
484status_t StagefrightRecorder::setParamAudioTimeScale(int32_t timeScale) {
485    LOGV("setParamAudioTimeScale: %d", timeScale);
486
487    // 96000 Hz is the highest sampling rate support in AAC.
488    if (timeScale < 600 || timeScale > 96000) {
489        LOGE("Time scale (%d) for audio is out of range [600, 96000]", timeScale);
490        return BAD_VALUE;
491    }
492    mAudioTimeScale = timeScale;
493    return OK;
494}
495
496status_t StagefrightRecorder::setParamTimeLapseEnable(int32_t timeLapseEnable) {
497    LOGV("setParamTimeLapseEnable: %d", timeLapseEnable);
498
499    if(timeLapseEnable == 0) {
500        mCaptureTimeLapse = false;
501    } else if (timeLapseEnable == 1) {
502        mCaptureTimeLapse = true;
503    } else {
504        return BAD_VALUE;
505    }
506    return OK;
507}
508
509status_t StagefrightRecorder::setParamUseStillCameraForTimeLapse(int32_t useStillCamera) {
510    LOGV("setParamUseStillCameraForTimeLapse: %d", useStillCamera);
511
512    if(useStillCamera == 0) {
513        mUseStillCameraForTimeLapse= false;
514    } else if (useStillCamera == 1) {
515        mUseStillCameraForTimeLapse= true;
516    } else {
517        return BAD_VALUE;
518    }
519    return OK;
520}
521
522status_t StagefrightRecorder::setParamTimeBetweenTimeLapseFrameCapture(int64_t timeUs) {
523    LOGV("setParamTimeBetweenTimeLapseFrameCapture: %lld us", timeUs);
524
525    // Not allowing time more than a day
526    if (timeUs <= 0 || timeUs > 86400*1E6) {
527        LOGE("Time between time lapse frame capture (%lld) is out of range [0, 1 Day]", timeUs);
528        return BAD_VALUE;
529    }
530
531    mTimeBetweenTimeLapseFrameCaptureUs = timeUs;
532    return OK;
533}
534
535status_t StagefrightRecorder::setParameter(
536        const String8 &key, const String8 &value) {
537    LOGV("setParameter: key (%s) => value (%s)", key.string(), value.string());
538    if (key == "max-duration") {
539        int64_t max_duration_ms;
540        if (safe_strtoi64(value.string(), &max_duration_ms)) {
541            return setParamMaxFileDurationUs(1000LL * max_duration_ms);
542        }
543    } else if (key == "max-filesize") {
544        int64_t max_filesize_bytes;
545        if (safe_strtoi64(value.string(), &max_filesize_bytes)) {
546            return setParamMaxFileSizeBytes(max_filesize_bytes);
547        }
548    } else if (key == "interleave-duration-us") {
549        int32_t durationUs;
550        if (safe_strtoi32(value.string(), &durationUs)) {
551            return setParamInterleaveDuration(durationUs);
552        }
553    } else if (key == "param-movie-time-scale") {
554        int32_t timeScale;
555        if (safe_strtoi32(value.string(), &timeScale)) {
556            return setParamMovieTimeScale(timeScale);
557        }
558    } else if (key == "param-use-64bit-offset") {
559        int32_t use64BitOffset;
560        if (safe_strtoi32(value.string(), &use64BitOffset)) {
561            return setParam64BitFileOffset(use64BitOffset != 0);
562        }
563    } else if (key == "param-track-time-status") {
564        int64_t timeDurationUs;
565        if (safe_strtoi64(value.string(), &timeDurationUs)) {
566            return setParamTrackTimeStatus(timeDurationUs);
567        }
568    } else if (key == "audio-param-sampling-rate") {
569        int32_t sampling_rate;
570        if (safe_strtoi32(value.string(), &sampling_rate)) {
571            return setParamAudioSamplingRate(sampling_rate);
572        }
573    } else if (key == "audio-param-number-of-channels") {
574        int32_t number_of_channels;
575        if (safe_strtoi32(value.string(), &number_of_channels)) {
576            return setParamAudioNumberOfChannels(number_of_channels);
577        }
578    } else if (key == "audio-param-encoding-bitrate") {
579        int32_t audio_bitrate;
580        if (safe_strtoi32(value.string(), &audio_bitrate)) {
581            return setParamAudioEncodingBitRate(audio_bitrate);
582        }
583    } else if (key == "audio-param-time-scale") {
584        int32_t timeScale;
585        if (safe_strtoi32(value.string(), &timeScale)) {
586            return setParamAudioTimeScale(timeScale);
587        }
588    } else if (key == "video-param-encoding-bitrate") {
589        int32_t video_bitrate;
590        if (safe_strtoi32(value.string(), &video_bitrate)) {
591            return setParamVideoEncodingBitRate(video_bitrate);
592        }
593    } else if (key == "video-param-i-frames-interval") {
594        int32_t seconds;
595        if (safe_strtoi32(value.string(), &seconds)) {
596            return setParamVideoIFramesInterval(seconds);
597        }
598    } else if (key == "video-param-encoder-profile") {
599        int32_t profile;
600        if (safe_strtoi32(value.string(), &profile)) {
601            return setParamVideoEncoderProfile(profile);
602        }
603    } else if (key == "video-param-encoder-level") {
604        int32_t level;
605        if (safe_strtoi32(value.string(), &level)) {
606            return setParamVideoEncoderLevel(level);
607        }
608    } else if (key == "video-param-camera-id") {
609        int32_t cameraId;
610        if (safe_strtoi32(value.string(), &cameraId)) {
611            return setParamVideoCameraId(cameraId);
612        }
613    } else if (key == "video-param-time-scale") {
614        int32_t timeScale;
615        if (safe_strtoi32(value.string(), &timeScale)) {
616            return setParamVideoTimeScale(timeScale);
617        }
618    } else if (key == "time-lapse-enable") {
619        int32_t timeLapseEnable;
620        if (safe_strtoi32(value.string(), &timeLapseEnable)) {
621            return setParamTimeLapseEnable(timeLapseEnable);
622        }
623    } else if (key == "use-still-camera-for-time-lapse") {
624        int32_t useStillCamera;
625        if (safe_strtoi32(value.string(), &useStillCamera)) {
626            return setParamUseStillCameraForTimeLapse(useStillCamera);
627        }
628    } else if (key == "time-between-time-lapse-frame-capture") {
629        int64_t timeBetweenTimeLapseFrameCaptureMs;
630        if (safe_strtoi64(value.string(), &timeBetweenTimeLapseFrameCaptureMs)) {
631            return setParamTimeBetweenTimeLapseFrameCapture(
632                    1000LL * timeBetweenTimeLapseFrameCaptureMs);
633        }
634    } else {
635        LOGE("setParameter: failed to find key %s", key.string());
636    }
637    return BAD_VALUE;
638}
639
640status_t StagefrightRecorder::setParameters(const String8 &params) {
641    LOGV("setParameters: %s", params.string());
642    const char *cparams = params.string();
643    const char *key_start = cparams;
644    for (;;) {
645        const char *equal_pos = strchr(key_start, '=');
646        if (equal_pos == NULL) {
647            LOGE("Parameters %s miss a value", cparams);
648            return BAD_VALUE;
649        }
650        String8 key(key_start, equal_pos - key_start);
651        TrimString(&key);
652        if (key.length() == 0) {
653            LOGE("Parameters %s contains an empty key", cparams);
654            return BAD_VALUE;
655        }
656        const char *value_start = equal_pos + 1;
657        const char *semicolon_pos = strchr(value_start, ';');
658        String8 value;
659        if (semicolon_pos == NULL) {
660            value.setTo(value_start);
661        } else {
662            value.setTo(value_start, semicolon_pos - value_start);
663        }
664        if (setParameter(key, value) != OK) {
665            return BAD_VALUE;
666        }
667        if (semicolon_pos == NULL) {
668            break;  // Reaches the end
669        }
670        key_start = semicolon_pos + 1;
671    }
672    return OK;
673}
674
675status_t StagefrightRecorder::setListener(const sp<IMediaRecorderClient> &listener) {
676    mListener = listener;
677
678    return OK;
679}
680
681status_t StagefrightRecorder::prepare() {
682    return OK;
683}
684
685status_t StagefrightRecorder::start() {
686    CHECK(mOutputFd >= 0);
687
688    if (mWriter != NULL) {
689        LOGE("File writer is not avaialble");
690        return UNKNOWN_ERROR;
691    }
692
693    switch (mOutputFormat) {
694        case OUTPUT_FORMAT_DEFAULT:
695        case OUTPUT_FORMAT_THREE_GPP:
696        case OUTPUT_FORMAT_MPEG_4:
697            return startMPEG4Recording();
698
699        case OUTPUT_FORMAT_AMR_NB:
700        case OUTPUT_FORMAT_AMR_WB:
701            return startAMRRecording();
702
703        case OUTPUT_FORMAT_AAC_ADIF:
704        case OUTPUT_FORMAT_AAC_ADTS:
705            return startAACRecording();
706
707        case OUTPUT_FORMAT_RTP_AVP:
708            return startRTPRecording();
709
710        default:
711            LOGE("Unsupported output file format: %d", mOutputFormat);
712            return UNKNOWN_ERROR;
713    }
714}
715
716sp<MediaSource> StagefrightRecorder::createAudioSource() {
717    sp<AudioSource> audioSource =
718        new AudioSource(
719                mAudioSource,
720                mSampleRate,
721                mAudioChannels);
722
723    status_t err = audioSource->initCheck();
724
725    if (err != OK) {
726        LOGE("audio source is not initialized");
727        return NULL;
728    }
729
730    sp<MetaData> encMeta = new MetaData;
731    const char *mime;
732    switch (mAudioEncoder) {
733        case AUDIO_ENCODER_AMR_NB:
734        case AUDIO_ENCODER_DEFAULT:
735            mime = MEDIA_MIMETYPE_AUDIO_AMR_NB;
736            break;
737        case AUDIO_ENCODER_AMR_WB:
738            mime = MEDIA_MIMETYPE_AUDIO_AMR_WB;
739            break;
740        case AUDIO_ENCODER_AAC:
741            mime = MEDIA_MIMETYPE_AUDIO_AAC;
742            break;
743        default:
744            LOGE("Unknown audio encoder: %d", mAudioEncoder);
745            return NULL;
746    }
747    encMeta->setCString(kKeyMIMEType, mime);
748
749    int32_t maxInputSize;
750    CHECK(audioSource->getFormat()->findInt32(
751                kKeyMaxInputSize, &maxInputSize));
752
753    encMeta->setInt32(kKeyMaxInputSize, maxInputSize);
754    encMeta->setInt32(kKeyChannelCount, mAudioChannels);
755    encMeta->setInt32(kKeySampleRate, mSampleRate);
756    encMeta->setInt32(kKeyBitRate, mAudioBitRate);
757    if (mAudioTimeScale > 0) {
758        encMeta->setInt32(kKeyTimeScale, mAudioTimeScale);
759    }
760
761    OMXClient client;
762    CHECK_EQ(client.connect(), OK);
763
764    sp<MediaSource> audioEncoder =
765        OMXCodec::Create(client.interface(), encMeta,
766                         true /* createEncoder */, audioSource);
767    mAudioSourceNode = audioSource;
768
769    return audioEncoder;
770}
771
772status_t StagefrightRecorder::startAACRecording() {
773    CHECK(mOutputFormat == OUTPUT_FORMAT_AAC_ADIF ||
774          mOutputFormat == OUTPUT_FORMAT_AAC_ADTS);
775
776    CHECK(mAudioEncoder == AUDIO_ENCODER_AAC);
777    CHECK(mAudioSource != AUDIO_SOURCE_LIST_END);
778
779    CHECK(0 == "AACWriter is not implemented yet");
780
781    return OK;
782}
783
784status_t StagefrightRecorder::startAMRRecording() {
785    CHECK(mOutputFormat == OUTPUT_FORMAT_AMR_NB ||
786          mOutputFormat == OUTPUT_FORMAT_AMR_WB);
787
788    if (mOutputFormat == OUTPUT_FORMAT_AMR_NB) {
789        if (mAudioEncoder != AUDIO_ENCODER_DEFAULT &&
790            mAudioEncoder != AUDIO_ENCODER_AMR_NB) {
791            LOGE("Invalid encoder %d used for AMRNB recording",
792                    mAudioEncoder);
793            return BAD_VALUE;
794        }
795        if (mSampleRate != 8000) {
796            LOGE("Invalid sampling rate %d used for AMRNB recording",
797                    mSampleRate);
798            return BAD_VALUE;
799        }
800    } else {  // mOutputFormat must be OUTPUT_FORMAT_AMR_WB
801        if (mAudioEncoder != AUDIO_ENCODER_AMR_WB) {
802            LOGE("Invlaid encoder %d used for AMRWB recording",
803                    mAudioEncoder);
804            return BAD_VALUE;
805        }
806        if (mSampleRate != 16000) {
807            LOGE("Invalid sample rate %d used for AMRWB recording",
808                    mSampleRate);
809            return BAD_VALUE;
810        }
811    }
812    if (mAudioChannels != 1) {
813        LOGE("Invalid number of audio channels %d used for amr recording",
814                mAudioChannels);
815        return BAD_VALUE;
816    }
817
818    if (mAudioSource >= AUDIO_SOURCE_LIST_END) {
819        LOGE("Invalid audio source: %d", mAudioSource);
820        return BAD_VALUE;
821    }
822
823    sp<MediaSource> audioEncoder = createAudioSource();
824
825    if (audioEncoder == NULL) {
826        return UNKNOWN_ERROR;
827    }
828
829    mWriter = new AMRWriter(dup(mOutputFd));
830    mWriter->addSource(audioEncoder);
831
832    if (mMaxFileDurationUs != 0) {
833        mWriter->setMaxFileDuration(mMaxFileDurationUs);
834    }
835    if (mMaxFileSizeBytes != 0) {
836        mWriter->setMaxFileSize(mMaxFileSizeBytes);
837    }
838    mWriter->setListener(mListener);
839    mWriter->start();
840
841    return OK;
842}
843
844status_t StagefrightRecorder::startRTPRecording() {
845    CHECK_EQ(mOutputFormat, OUTPUT_FORMAT_RTP_AVP);
846
847    if ((mAudioSource != AUDIO_SOURCE_LIST_END
848                && mVideoSource != VIDEO_SOURCE_LIST_END)
849            || (mAudioSource == AUDIO_SOURCE_LIST_END
850                && mVideoSource == VIDEO_SOURCE_LIST_END)) {
851        // Must have exactly one source.
852        return BAD_VALUE;
853    }
854
855    if (mOutputFd < 0) {
856        return BAD_VALUE;
857    }
858
859    sp<MediaSource> source;
860
861    if (mAudioSource != AUDIO_SOURCE_LIST_END) {
862        source = createAudioSource();
863    } else {
864
865        sp<CameraSource> cameraSource;
866        status_t err = setupCameraSource(&cameraSource);
867        if (err != OK) {
868            return err;
869        }
870
871        err = setupVideoEncoder(cameraSource, mVideoBitRate, &source);
872        if (err != OK) {
873            return err;
874        }
875    }
876
877    mWriter = new ARTPWriter(dup(mOutputFd));
878    mWriter->addSource(source);
879    mWriter->setListener(mListener);
880
881    return mWriter->start();
882}
883
884void StagefrightRecorder::clipVideoFrameRate() {
885    LOGV("clipVideoFrameRate: encoder %d", mVideoEncoder);
886    int minFrameRate = mEncoderProfiles->getVideoEncoderParamByName(
887                        "enc.vid.fps.min", mVideoEncoder);
888    int maxFrameRate = mEncoderProfiles->getVideoEncoderParamByName(
889                        "enc.vid.fps.max", mVideoEncoder);
890    if (mFrameRate < minFrameRate) {
891        LOGW("Intended video encoding frame rate (%d fps) is too small"
892             " and will be set to (%d fps)", mFrameRate, minFrameRate);
893        mFrameRate = minFrameRate;
894    } else if (mFrameRate > maxFrameRate) {
895        LOGW("Intended video encoding frame rate (%d fps) is too large"
896             " and will be set to (%d fps)", mFrameRate, maxFrameRate);
897        mFrameRate = maxFrameRate;
898    }
899}
900
901void StagefrightRecorder::clipVideoBitRate() {
902    LOGV("clipVideoBitRate: encoder %d", mVideoEncoder);
903    int minBitRate = mEncoderProfiles->getVideoEncoderParamByName(
904                        "enc.vid.bps.min", mVideoEncoder);
905    int maxBitRate = mEncoderProfiles->getVideoEncoderParamByName(
906                        "enc.vid.bps.max", mVideoEncoder);
907    if (mVideoBitRate < minBitRate) {
908        LOGW("Intended video encoding bit rate (%d bps) is too small"
909             " and will be set to (%d bps)", mVideoBitRate, minBitRate);
910        mVideoBitRate = minBitRate;
911    } else if (mVideoBitRate > maxBitRate) {
912        LOGW("Intended video encoding bit rate (%d bps) is too large"
913             " and will be set to (%d bps)", mVideoBitRate, maxBitRate);
914        mVideoBitRate = maxBitRate;
915    }
916}
917
918void StagefrightRecorder::clipVideoFrameWidth() {
919    LOGV("clipVideoFrameWidth: encoder %d", mVideoEncoder);
920    int minFrameWidth = mEncoderProfiles->getVideoEncoderParamByName(
921                        "enc.vid.width.min", mVideoEncoder);
922    int maxFrameWidth = mEncoderProfiles->getVideoEncoderParamByName(
923                        "enc.vid.width.max", mVideoEncoder);
924    if (mVideoWidth < minFrameWidth) {
925        LOGW("Intended video encoding frame width (%d) is too small"
926             " and will be set to (%d)", mVideoWidth, minFrameWidth);
927        mVideoWidth = minFrameWidth;
928    } else if (mVideoWidth > maxFrameWidth) {
929        LOGW("Intended video encoding frame width (%d) is too large"
930             " and will be set to (%d)", mVideoWidth, maxFrameWidth);
931        mVideoWidth = maxFrameWidth;
932    }
933}
934
935status_t StagefrightRecorder::setupCamera() {
936    if (!mCaptureTimeLapse) {
937        // Dont clip for time lapse capture as encoder will have enough
938        // time to encode because of slow capture rate of time lapse.
939        clipVideoBitRate();
940        clipVideoFrameRate();
941        clipVideoFrameWidth();
942        clipVideoFrameHeight();
943    }
944
945    int64_t token = IPCThreadState::self()->clearCallingIdentity();
946    if (mCamera == 0) {
947        mCamera = Camera::connect(mCameraId);
948        if (mCamera == 0) {
949            LOGE("Camera connection could not be established.");
950            return -EBUSY;
951        }
952        mFlags &= ~FLAGS_HOT_CAMERA;
953        mCamera->lock();
954    }
955
956    // Set the actual video recording frame size
957    CameraParameters params(mCamera->getParameters());
958
959    // dont change the preview size when using still camera for time lapse
960    // as mVideoWidth, mVideoHeight may correspond to HD resolution not
961    // supported by the video camera.
962    if (!(mCaptureTimeLapse && mUseStillCameraForTimeLapse)) {
963        params.setPreviewSize(mVideoWidth, mVideoHeight);
964    }
965
966    params.setPreviewFrameRate(mFrameRate);
967    String8 s = params.flatten();
968    if (OK != mCamera->setParameters(s)) {
969        LOGE("Could not change settings."
970             " Someone else is using camera %d?", mCameraId);
971        return -EBUSY;
972    }
973    CameraParameters newCameraParams(mCamera->getParameters());
974
975    // Check on video frame size
976    int frameWidth = 0, frameHeight = 0;
977    newCameraParams.getPreviewSize(&frameWidth, &frameHeight);
978    if (!(mCaptureTimeLapse && mUseStillCameraForTimeLapse) &&
979        (frameWidth  < 0 || frameWidth  != mVideoWidth ||
980        frameHeight < 0 || frameHeight != mVideoHeight)) {
981        LOGE("Failed to set the video frame size to %dx%d",
982                mVideoWidth, mVideoHeight);
983        IPCThreadState::self()->restoreCallingIdentity(token);
984        return UNKNOWN_ERROR;
985    }
986
987    // Check on video frame rate
988    int frameRate = newCameraParams.getPreviewFrameRate();
989    if (frameRate < 0 || (frameRate - mFrameRate) != 0) {
990        LOGE("Failed to set frame rate to %d fps. The actual "
991             "frame rate is %d", mFrameRate, frameRate);
992    }
993
994    // This CHECK is good, since we just passed the lock/unlock
995    // check earlier by calling mCamera->setParameters().
996    CHECK_EQ(OK, mCamera->setPreviewDisplay(mPreviewSurface));
997    IPCThreadState::self()->restoreCallingIdentity(token);
998    return OK;
999}
1000
1001void StagefrightRecorder::clipVideoFrameHeight() {
1002    LOGV("clipVideoFrameHeight: encoder %d", mVideoEncoder);
1003    int minFrameHeight = mEncoderProfiles->getVideoEncoderParamByName(
1004                        "enc.vid.height.min", mVideoEncoder);
1005    int maxFrameHeight = mEncoderProfiles->getVideoEncoderParamByName(
1006                        "enc.vid.height.max", mVideoEncoder);
1007    if (mVideoHeight < minFrameHeight) {
1008        LOGW("Intended video encoding frame height (%d) is too small"
1009             " and will be set to (%d)", mVideoHeight, minFrameHeight);
1010        mVideoHeight = minFrameHeight;
1011    } else if (mVideoHeight > maxFrameHeight) {
1012        LOGW("Intended video encoding frame height (%d) is too large"
1013             " and will be set to (%d)", mVideoHeight, maxFrameHeight);
1014        mVideoHeight = maxFrameHeight;
1015    }
1016}
1017
1018status_t StagefrightRecorder::setupCameraSource(sp<CameraSource> *cameraSource) {
1019    status_t err = setupCamera();
1020    if (err != OK) return err;
1021
1022    *cameraSource = (mCaptureTimeLapse) ?
1023        CameraSourceTimeLapse::CreateFromCamera(mCamera, mUseStillCameraForTimeLapse,
1024                mTimeBetweenTimeLapseFrameCaptureUs, mVideoWidth, mVideoHeight, mFrameRate):
1025        CameraSource::CreateFromCamera(mCamera);
1026    CHECK(*cameraSource != NULL);
1027
1028    return OK;
1029}
1030
1031status_t StagefrightRecorder::setupVideoEncoder(
1032        sp<MediaSource> cameraSource,
1033        int32_t videoBitRate,
1034        sp<MediaSource> *source) {
1035    source->clear();
1036
1037    sp<MetaData> enc_meta = new MetaData;
1038    enc_meta->setInt32(kKeyBitRate, videoBitRate);
1039    enc_meta->setInt32(kKeySampleRate, mFrameRate);
1040
1041    switch (mVideoEncoder) {
1042        case VIDEO_ENCODER_H263:
1043            enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
1044            break;
1045
1046        case VIDEO_ENCODER_MPEG_4_SP:
1047            enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
1048            break;
1049
1050        case VIDEO_ENCODER_H264:
1051            enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
1052            break;
1053
1054        default:
1055            CHECK(!"Should not be here, unsupported video encoding.");
1056            break;
1057    }
1058
1059    sp<MetaData> meta = cameraSource->getFormat();
1060
1061    int32_t width, height, stride, sliceHeight, colorFormat;
1062    CHECK(meta->findInt32(kKeyWidth, &width));
1063    CHECK(meta->findInt32(kKeyHeight, &height));
1064    CHECK(meta->findInt32(kKeyStride, &stride));
1065    CHECK(meta->findInt32(kKeySliceHeight, &sliceHeight));
1066    CHECK(meta->findInt32(kKeyColorFormat, &colorFormat));
1067
1068    enc_meta->setInt32(kKeyWidth, width);
1069    enc_meta->setInt32(kKeyHeight, height);
1070    enc_meta->setInt32(kKeyIFramesInterval, mIFramesIntervalSec);
1071    enc_meta->setInt32(kKeyStride, stride);
1072    enc_meta->setInt32(kKeySliceHeight, sliceHeight);
1073    enc_meta->setInt32(kKeyColorFormat, colorFormat);
1074    if (mVideoTimeScale > 0) {
1075        enc_meta->setInt32(kKeyTimeScale, mVideoTimeScale);
1076    }
1077    if (mVideoEncoderProfile != -1) {
1078        enc_meta->setInt32(kKeyVideoProfile, mVideoEncoderProfile);
1079    }
1080    if (mVideoEncoderLevel != -1) {
1081        enc_meta->setInt32(kKeyVideoLevel, mVideoEncoderLevel);
1082    }
1083
1084    OMXClient client;
1085    CHECK_EQ(client.connect(), OK);
1086
1087    // Use software codec for time lapse
1088    uint32_t encoder_flags = (mCaptureTimeLapse) ? OMXCodec::kPreferSoftwareCodecs : 0;
1089    sp<MediaSource> encoder = OMXCodec::Create(
1090            client.interface(), enc_meta,
1091            true /* createEncoder */, cameraSource,
1092            NULL, encoder_flags);
1093    if (encoder == NULL) {
1094        return UNKNOWN_ERROR;
1095    }
1096
1097    *source = encoder;
1098
1099    return OK;
1100}
1101
1102status_t StagefrightRecorder::setupAudioEncoder(const sp<MediaWriter>& writer) {
1103    sp<MediaSource> audioEncoder;
1104    switch(mAudioEncoder) {
1105        case AUDIO_ENCODER_AMR_NB:
1106        case AUDIO_ENCODER_AMR_WB:
1107        case AUDIO_ENCODER_AAC:
1108            audioEncoder = createAudioSource();
1109            break;
1110        default:
1111            LOGE("Unsupported audio encoder: %d", mAudioEncoder);
1112            return UNKNOWN_ERROR;
1113    }
1114
1115    if (audioEncoder == NULL) {
1116        return UNKNOWN_ERROR;
1117    }
1118
1119    writer->addSource(audioEncoder);
1120    return OK;
1121}
1122
1123status_t StagefrightRecorder::setupMPEG4Recording(
1124        bool useSplitCameraSource,
1125        int outputFd, int32_t audioBitRate, int32_t videoBitRate,
1126        int32_t *totalBitRate,
1127        sp<MediaWriter> *mediaWriter) {
1128    mediaWriter->clear();
1129    *totalBitRate = 0;
1130    status_t err = OK;
1131    sp<MediaWriter> writer = new MPEG4Writer(dup(outputFd));
1132
1133    // Add audio source first if it exists
1134    if (!mCaptureTimeLapse && (mAudioSource != AUDIO_SOURCE_LIST_END)) {
1135        err = setupAudioEncoder(writer);
1136        if (err != OK) return err;
1137        *totalBitRate += audioBitRate;
1138    }
1139    if (mVideoSource == VIDEO_SOURCE_DEFAULT
1140            || mVideoSource == VIDEO_SOURCE_CAMERA) {
1141
1142        sp<MediaSource> cameraMediaSource;
1143        if (useSplitCameraSource) {
1144            LOGV("Using Split camera source");
1145            cameraMediaSource = mCameraSourceSplitter->createClient();
1146        } else {
1147            sp<CameraSource> cameraSource;
1148            err = setupCameraSource(&cameraSource);
1149            cameraMediaSource = cameraSource;
1150        }
1151        if (err != OK) {
1152            return err;
1153        }
1154
1155        sp<MediaSource> encoder;
1156        err = setupVideoEncoder(cameraMediaSource, videoBitRate, &encoder);
1157        if (err != OK) {
1158            return err;
1159        }
1160
1161        writer->addSource(encoder);
1162        *totalBitRate += videoBitRate;
1163    }
1164
1165    if (mInterleaveDurationUs > 0) {
1166        reinterpret_cast<MPEG4Writer *>(writer.get())->
1167            setInterleaveDuration(mInterleaveDurationUs);
1168    }
1169    if (mMaxFileDurationUs != 0) {
1170        writer->setMaxFileDuration(mMaxFileDurationUs);
1171    }
1172    if (mMaxFileSizeBytes != 0) {
1173        writer->setMaxFileSize(mMaxFileSizeBytes);
1174    }
1175
1176    writer->setListener(mListener);
1177    *mediaWriter = writer;
1178    return OK;
1179}
1180
1181void StagefrightRecorder::setupMPEG4MetaData(int64_t startTimeUs, int32_t totalBitRate,
1182        sp<MetaData> *meta) {
1183    (*meta)->setInt64(kKeyTime, startTimeUs);
1184    (*meta)->setInt32(kKeyFileType, mOutputFormat);
1185    (*meta)->setInt32(kKeyBitRate, totalBitRate);
1186    (*meta)->setInt32(kKey64BitFileOffset, mUse64BitFileOffset);
1187    if (mMovieTimeScale > 0) {
1188        (*meta)->setInt32(kKeyTimeScale, mMovieTimeScale);
1189    }
1190    if (mTrackEveryTimeDurationUs > 0) {
1191        (*meta)->setInt64(kKeyTrackTimeStatus, mTrackEveryTimeDurationUs);
1192    }
1193}
1194
1195status_t StagefrightRecorder::startMPEG4Recording() {
1196    if (mCaptureAuxVideo) {
1197        LOGV("Creating MediaSourceSplitter");
1198        sp<CameraSource> cameraSource;
1199        status_t err = setupCameraSource(&cameraSource);
1200        if (err != OK) {
1201            return err;
1202        }
1203        mCameraSourceSplitter = new MediaSourceSplitter(cameraSource);
1204    } else {
1205        mCameraSourceSplitter = NULL;
1206    }
1207
1208    int32_t totalBitRate;
1209    status_t err = setupMPEG4Recording(mCaptureAuxVideo,
1210            mOutputFd, mAudioBitRate, mVideoBitRate, &totalBitRate, &mWriter);
1211    if (err != OK) {
1212        return err;
1213    }
1214
1215    int64_t startTimeUs = systemTime() / 1000;
1216    sp<MetaData> meta = new MetaData;
1217    setupMPEG4MetaData(startTimeUs, totalBitRate, &meta);
1218
1219    err = mWriter->start(meta.get());
1220    if (err != OK) {
1221        return err;
1222    }
1223
1224    if (mCaptureAuxVideo) {
1225        CHECK(mOutputFdAux >= 0);
1226        if (mWriterAux != NULL) {
1227            LOGE("Auxiliary File writer is not avaialble");
1228            return UNKNOWN_ERROR;
1229        }
1230
1231        int32_t totalBitrateAux;
1232        err = setupMPEG4Recording(mCaptureAuxVideo,
1233                mOutputFdAux, mAudioBitRateAux, mVideoBitRateAux, &totalBitrateAux, &mWriterAux);
1234        if (err != OK) {
1235            return err;
1236        }
1237
1238        sp<MetaData> metaAux = new MetaData;
1239        setupMPEG4MetaData(startTimeUs, totalBitrateAux, &metaAux);
1240
1241        return mWriterAux->start(metaAux.get());
1242    }
1243
1244    return OK;
1245}
1246
1247status_t StagefrightRecorder::pause() {
1248    LOGV("pause");
1249    if (mWriter == NULL) {
1250        return UNKNOWN_ERROR;
1251    }
1252    mWriter->pause();
1253
1254    if (mCaptureAuxVideo) {
1255        if (mWriterAux == NULL) {
1256            return UNKNOWN_ERROR;
1257        }
1258        mWriterAux->pause();
1259    }
1260
1261    return OK;
1262}
1263
1264status_t StagefrightRecorder::stop() {
1265    LOGV("stop");
1266    status_t err = OK;
1267
1268    if (mCaptureAuxVideo) {
1269        if (mWriterAux != NULL) {
1270            mWriterAux->stop();
1271            mWriterAux.clear();
1272        }
1273    }
1274
1275    if (mWriter != NULL) {
1276        err = mWriter->stop();
1277        mWriter.clear();
1278    }
1279
1280    if (mCamera != 0) {
1281        LOGV("Disconnect camera");
1282        int64_t token = IPCThreadState::self()->clearCallingIdentity();
1283        if ((mFlags & FLAGS_HOT_CAMERA) == 0) {
1284            LOGV("Camera was cold when we started, stopping preview");
1285            mCamera->stopPreview();
1286        }
1287        mCamera->unlock();
1288        mCamera.clear();
1289        IPCThreadState::self()->restoreCallingIdentity(token);
1290        mFlags = 0;
1291    }
1292
1293    if (mOutputFd >= 0) {
1294        ::close(mOutputFd);
1295        mOutputFd = -1;
1296    }
1297
1298    if (mCaptureAuxVideo) {
1299        if (mOutputFdAux >= 0) {
1300            ::close(mOutputFdAux);
1301            mOutputFdAux = -1;
1302        }
1303    }
1304
1305    return err;
1306}
1307
1308status_t StagefrightRecorder::close() {
1309    LOGV("close");
1310    stop();
1311
1312    return OK;
1313}
1314
1315status_t StagefrightRecorder::reset() {
1316    LOGV("reset");
1317    stop();
1318
1319    // No audio or video source by default
1320    mAudioSource = AUDIO_SOURCE_LIST_END;
1321    mVideoSource = VIDEO_SOURCE_LIST_END;
1322
1323    // Default parameters
1324    mOutputFormat  = OUTPUT_FORMAT_THREE_GPP;
1325    mAudioEncoder  = AUDIO_ENCODER_AMR_NB;
1326    mVideoEncoder  = VIDEO_ENCODER_H263;
1327    mVideoWidth    = 176;
1328    mVideoHeight   = 144;
1329    mFrameRate     = 20;
1330    mVideoBitRate  = 192000;
1331    mVideoBitRateAux = 20000000;
1332    mSampleRate    = 8000;
1333    mAudioChannels = 1;
1334    mAudioBitRate  = 12200;
1335    mAudioBitRateAux  = 12200;
1336    mInterleaveDurationUs = 0;
1337    mIFramesIntervalSec = 1;
1338    mAudioSourceNode = 0;
1339    mUse64BitFileOffset = false;
1340    mMovieTimeScale  = -1;
1341    mAudioTimeScale  = -1;
1342    mVideoTimeScale  = -1;
1343    mCameraId        = 0;
1344    mVideoEncoderProfile = -1;
1345    mVideoEncoderLevel   = -1;
1346    mMaxFileDurationUs = 0;
1347    mMaxFileSizeBytes = 0;
1348    mTrackEveryTimeDurationUs = 0;
1349    mCaptureTimeLapse = false;
1350    mUseStillCameraForTimeLapse = true;
1351    mTimeBetweenTimeLapseFrameCaptureUs = -1;
1352    mCaptureAuxVideo = false;
1353    mCameraSourceSplitter = NULL;
1354    mEncoderProfiles = MediaProfiles::getInstance();
1355
1356    mOutputFd = -1;
1357    mOutputFdAux = -1;
1358    mFlags = 0;
1359
1360    return OK;
1361}
1362
1363status_t StagefrightRecorder::getMaxAmplitude(int *max) {
1364    LOGV("getMaxAmplitude");
1365
1366    if (max == NULL) {
1367        LOGE("Null pointer argument");
1368        return BAD_VALUE;
1369    }
1370
1371    if (mAudioSourceNode != 0) {
1372        *max = mAudioSourceNode->getMaxAmplitude();
1373    } else {
1374        *max = 0;
1375    }
1376
1377    return OK;
1378}
1379
1380status_t StagefrightRecorder::dump(
1381        int fd, const Vector<String16>& args) const {
1382    LOGV("dump");
1383    const size_t SIZE = 256;
1384    char buffer[SIZE];
1385    String8 result;
1386    if (mWriter != 0) {
1387        mWriter->dump(fd, args);
1388    } else {
1389        snprintf(buffer, SIZE, "   No file writer\n");
1390        result.append(buffer);
1391    }
1392    snprintf(buffer, SIZE, "   Recorder: %p\n", this);
1393    snprintf(buffer, SIZE, "   Output file (fd %d):\n", mOutputFd);
1394    result.append(buffer);
1395    snprintf(buffer, SIZE, "   Output file Auxiliary (fd %d):\n", mOutputFdAux);
1396    result.append(buffer);
1397    snprintf(buffer, SIZE, "     File format: %d\n", mOutputFormat);
1398    result.append(buffer);
1399    snprintf(buffer, SIZE, "     Max file size (bytes): %lld\n", mMaxFileSizeBytes);
1400    result.append(buffer);
1401    snprintf(buffer, SIZE, "     Max file duration (us): %lld\n", mMaxFileDurationUs);
1402    result.append(buffer);
1403    snprintf(buffer, SIZE, "     File offset length (bits): %d\n", mUse64BitFileOffset? 64: 32);
1404    result.append(buffer);
1405    snprintf(buffer, SIZE, "     Interleave duration (us): %d\n", mInterleaveDurationUs);
1406    result.append(buffer);
1407    snprintf(buffer, SIZE, "     Progress notification: %lld us\n", mTrackEveryTimeDurationUs);
1408    result.append(buffer);
1409    snprintf(buffer, SIZE, "   Audio\n");
1410    result.append(buffer);
1411    snprintf(buffer, SIZE, "     Source: %d\n", mAudioSource);
1412    result.append(buffer);
1413    snprintf(buffer, SIZE, "     Encoder: %d\n", mAudioEncoder);
1414    result.append(buffer);
1415    snprintf(buffer, SIZE, "     Bit rate (bps): %d\n", mAudioBitRate);
1416    result.append(buffer);
1417    snprintf(buffer, SIZE, "     Bit rate auxiliary (bps): %d\n", mAudioBitRateAux);
1418    result.append(buffer);
1419    snprintf(buffer, SIZE, "     Sampling rate (hz): %d\n", mSampleRate);
1420    result.append(buffer);
1421    snprintf(buffer, SIZE, "     Number of channels: %d\n", mAudioChannels);
1422    result.append(buffer);
1423    snprintf(buffer, SIZE, "     Max amplitude: %d\n", mAudioSourceNode == 0? 0: mAudioSourceNode->getMaxAmplitude());
1424    result.append(buffer);
1425    snprintf(buffer, SIZE, "   Video\n");
1426    result.append(buffer);
1427    snprintf(buffer, SIZE, "     Source: %d\n", mVideoSource);
1428    result.append(buffer);
1429    snprintf(buffer, SIZE, "     Camera Id: %d\n", mCameraId);
1430    result.append(buffer);
1431    snprintf(buffer, SIZE, "     Camera flags: %d\n", mFlags);
1432    result.append(buffer);
1433    snprintf(buffer, SIZE, "     Encoder: %d\n", mVideoEncoder);
1434    result.append(buffer);
1435    snprintf(buffer, SIZE, "     Encoder profile: %d\n", mVideoEncoderProfile);
1436    result.append(buffer);
1437    snprintf(buffer, SIZE, "     Encoder level: %d\n", mVideoEncoderLevel);
1438    result.append(buffer);
1439    snprintf(buffer, SIZE, "     I frames interval (s): %d\n", mIFramesIntervalSec);
1440    result.append(buffer);
1441    snprintf(buffer, SIZE, "     Frame size (pixels): %dx%d\n", mVideoWidth, mVideoHeight);
1442    result.append(buffer);
1443    snprintf(buffer, SIZE, "     Frame rate (fps): %d\n", mFrameRate);
1444    result.append(buffer);
1445    snprintf(buffer, SIZE, "     Bit rate (bps): %d\n", mVideoBitRate);
1446    result.append(buffer);
1447    snprintf(buffer, SIZE, "     Bit rate Auxiliary (bps): %d\n", mVideoBitRateAux);
1448    result.append(buffer);
1449    ::write(fd, result.string(), result.size());
1450    return OK;
1451}
1452}  // namespace android
1453