StagefrightRecorder.cpp revision 59d9e31c503e5c2f49448362a0d3a8f1150fb6c2 
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/VideoSourceDownSampler.h>
28#include <media/stagefright/CameraSourceTimeLapse.h>
29#include <media/stagefright/MediaSourceSplitter.h>
30#include <media/stagefright/MPEG4Writer.h>
31#include <media/stagefright/MediaDebug.h>
32#include <media/stagefright/MediaDefs.h>
33#include <media/stagefright/MetaData.h>
34#include <media/stagefright/OMXClient.h>
35#include <media/stagefright/OMXCodec.h>
36#include <media/MediaProfiles.h>
37#include <camera/ICamera.h>
38#include <camera/Camera.h>
39#include <camera/CameraParameters.h>
40#include <surfaceflinger/Surface.h>
41#include <utils/Errors.h>
42#include <sys/types.h>
43#include <ctype.h>
44#include <unistd.h>
45
46#include "ARTPWriter.h"
47
48namespace android {
49
50StagefrightRecorder::StagefrightRecorder()
51    : mWriter(NULL), mWriterAux(NULL),
52      mOutputFd(-1), mOutputFdAux(-1) {
53
54    LOGV("Constructor");
55    reset();
56}
57
58StagefrightRecorder::~StagefrightRecorder() {
59    LOGV("Destructor");
60    stop();
61}
62
63status_t StagefrightRecorder::init() {
64    LOGV("init");
65    return OK;
66}
67
68status_t StagefrightRecorder::setAudioSource(audio_source as) {
69    LOGV("setAudioSource: %d", as);
70    if (as < AUDIO_SOURCE_DEFAULT ||
71        as >= AUDIO_SOURCE_LIST_END) {
72        LOGE("Invalid audio source: %d", as);
73        return BAD_VALUE;
74    }
75
76    if (as == AUDIO_SOURCE_DEFAULT) {
77        mAudioSource = AUDIO_SOURCE_MIC;
78    } else {
79        mAudioSource = as;
80    }
81
82    return OK;
83}
84
85status_t StagefrightRecorder::setVideoSource(video_source vs) {
86    LOGV("setVideoSource: %d", vs);
87    if (vs < VIDEO_SOURCE_DEFAULT ||
88        vs >= VIDEO_SOURCE_LIST_END) {
89        LOGE("Invalid video source: %d", vs);
90        return BAD_VALUE;
91    }
92
93    if (vs == VIDEO_SOURCE_DEFAULT) {
94        mVideoSource = VIDEO_SOURCE_CAMERA;
95    } else {
96        mVideoSource = vs;
97    }
98
99    return OK;
100}
101
102status_t StagefrightRecorder::setOutputFormat(output_format of) {
103    LOGV("setOutputFormat: %d", of);
104    if (of < OUTPUT_FORMAT_DEFAULT ||
105        of >= OUTPUT_FORMAT_LIST_END) {
106        LOGE("Invalid output format: %d", of);
107        return BAD_VALUE;
108    }
109
110    if (of == OUTPUT_FORMAT_DEFAULT) {
111        mOutputFormat = OUTPUT_FORMAT_THREE_GPP;
112    } else {
113        mOutputFormat = of;
114    }
115
116    return OK;
117}
118
119status_t StagefrightRecorder::setAudioEncoder(audio_encoder ae) {
120    LOGV("setAudioEncoder: %d", ae);
121    if (ae < AUDIO_ENCODER_DEFAULT ||
122        ae >= AUDIO_ENCODER_LIST_END) {
123        LOGE("Invalid audio encoder: %d", ae);
124        return BAD_VALUE;
125    }
126
127    if (ae == AUDIO_ENCODER_DEFAULT) {
128        mAudioEncoder = AUDIO_ENCODER_AMR_NB;
129    } else {
130        mAudioEncoder = ae;
131    }
132
133    return OK;
134}
135
136status_t StagefrightRecorder::setVideoEncoder(video_encoder ve) {
137    LOGV("setVideoEncoder: %d", ve);
138    if (ve < VIDEO_ENCODER_DEFAULT ||
139        ve >= VIDEO_ENCODER_LIST_END) {
140        LOGE("Invalid video encoder: %d", ve);
141        return BAD_VALUE;
142    }
143
144    if (ve == VIDEO_ENCODER_DEFAULT) {
145        mVideoEncoder = VIDEO_ENCODER_H263;
146    } else {
147        mVideoEncoder = ve;
148    }
149
150    return OK;
151}
152
153status_t StagefrightRecorder::setVideoSize(int width, int height) {
154    LOGV("setVideoSize: %dx%d", width, height);
155    if (width <= 0 || height <= 0) {
156        LOGE("Invalid video size: %dx%d", width, height);
157        return BAD_VALUE;
158    }
159
160    // Additional check on the dimension will be performed later
161    mVideoWidth = width;
162    mVideoHeight = height;
163
164    return OK;
165}
166
167status_t StagefrightRecorder::setVideoFrameRate(int frames_per_second) {
168    LOGV("setVideoFrameRate: %d", frames_per_second);
169    if (frames_per_second <= 0 || frames_per_second > 30) {
170        LOGE("Invalid video frame rate: %d", frames_per_second);
171        return BAD_VALUE;
172    }
173
174    // Additional check on the frame rate will be performed later
175    mFrameRate = frames_per_second;
176
177    return OK;
178}
179
180status_t StagefrightRecorder::setCamera(const sp<ICamera> &camera) {
181    LOGV("setCamera");
182    if (camera == 0) {
183        LOGE("camera is NULL");
184        return BAD_VALUE;
185    }
186
187    int64_t token = IPCThreadState::self()->clearCallingIdentity();
188    mFlags &= ~FLAGS_HOT_CAMERA;
189    mCamera = Camera::create(camera);
190    if (mCamera == 0) {
191        LOGE("Unable to connect to camera");
192        IPCThreadState::self()->restoreCallingIdentity(token);
193        return -EBUSY;
194    }
195
196    LOGV("Connected to camera");
197    if (mCamera->previewEnabled()) {
198        LOGV("camera is hot");
199        mFlags |= FLAGS_HOT_CAMERA;
200    }
201    IPCThreadState::self()->restoreCallingIdentity(token);
202
203    return OK;
204}
205
206status_t StagefrightRecorder::setPreviewSurface(const sp<Surface> &surface) {
207    LOGV("setPreviewSurface: %p", surface.get());
208    mPreviewSurface = surface;
209
210    return OK;
211}
212
213status_t StagefrightRecorder::setOutputFile(const char *path) {
214    LOGE("setOutputFile(const char*) must not be called");
215    // We don't actually support this at all, as the media_server process
216    // no longer has permissions to create files.
217
218    return -EPERM;
219}
220
221status_t StagefrightRecorder::setOutputFile(int fd, int64_t offset, int64_t length) {
222    LOGV("setOutputFile: %d, %lld, %lld", fd, offset, length);
223    // These don't make any sense, do they?
224    CHECK_EQ(offset, 0);
225    CHECK_EQ(length, 0);
226
227    if (fd < 0) {
228        LOGE("Invalid file descriptor: %d", fd);
229        return -EBADF;
230    }
231
232    if (mOutputFd >= 0) {
233        ::close(mOutputFd);
234    }
235    mOutputFd = dup(fd);
236
237    return OK;
238}
239
240status_t StagefrightRecorder::setOutputFileAuxiliary(int fd) {
241    LOGV("setOutputFileAuxiliary: %d", fd);
242
243    if (fd < 0) {
244        LOGE("Invalid file descriptor: %d", fd);
245        return -EBADF;
246    }
247
248    mCaptureAuxVideo = true;
249
250    if (mOutputFdAux >= 0) {
251        ::close(mOutputFdAux);
252    }
253    mOutputFdAux = dup(fd);
254
255    return OK;
256}
257
258// Attempt to parse an int64 literal optionally surrounded by whitespace,
259// returns true on success, false otherwise.
260static bool safe_strtoi64(const char *s, int64_t *val) {
261    char *end;
262    *val = strtoll(s, &end, 10);
263
264    if (end == s || errno == ERANGE) {
265        return false;
266    }
267
268    // Skip trailing whitespace
269    while (isspace(*end)) {
270        ++end;
271    }
272
273    // For a successful return, the string must contain nothing but a valid
274    // int64 literal optionally surrounded by whitespace.
275
276    return *end == '\0';
277}
278
279// Return true if the value is in [0, 0x007FFFFFFF]
280static bool safe_strtoi32(const char *s, int32_t *val) {
281    int64_t temp;
282    if (safe_strtoi64(s, &temp)) {
283        if (temp >= 0 && temp <= 0x007FFFFFFF) {
284            *val = static_cast<int32_t>(temp);
285            return true;
286        }
287    }
288    return false;
289}
290
291// Trim both leading and trailing whitespace from the given string.
292static void TrimString(String8 *s) {
293    size_t num_bytes = s->bytes();
294    const char *data = s->string();
295
296    size_t leading_space = 0;
297    while (leading_space < num_bytes && isspace(data[leading_space])) {
298        ++leading_space;
299    }
300
301    size_t i = num_bytes;
302    while (i > leading_space && isspace(data[i - 1])) {
303        --i;
304    }
305
306    s->setTo(String8(&data[leading_space], i - leading_space));
307}
308
309status_t StagefrightRecorder::setParamAudioSamplingRate(int32_t sampleRate) {
310    LOGV("setParamAudioSamplingRate: %d", sampleRate);
311    if (sampleRate <= 0) {
312        LOGE("Invalid audio sampling rate: %d", sampleRate);
313        return BAD_VALUE;
314    }
315
316    // Additional check on the sample rate will be performed later.
317    mSampleRate = sampleRate;
318    return OK;
319}
320
321status_t StagefrightRecorder::setParamAudioNumberOfChannels(int32_t channels) {
322    LOGV("setParamAudioNumberOfChannels: %d", channels);
323    if (channels <= 0 || channels >= 3) {
324        LOGE("Invalid number of audio channels: %d", channels);
325        return BAD_VALUE;
326    }
327
328    // Additional check on the number of channels will be performed later.
329    mAudioChannels = channels;
330    return OK;
331}
332
333status_t StagefrightRecorder::setParamAudioEncodingBitRate(int32_t bitRate) {
334    LOGV("setParamAudioEncodingBitRate: %d", bitRate);
335    if (bitRate <= 0) {
336        LOGE("Invalid audio encoding bit rate: %d", bitRate);
337        return BAD_VALUE;
338    }
339
340    // The target bit rate may not be exactly the same as the requested.
341    // It depends on many factors, such as rate control, and the bit rate
342    // range that a specific encoder supports. The mismatch between the
343    // the target and requested bit rate will NOT be treated as an error.
344    mAudioBitRate = bitRate;
345    return OK;
346}
347
348status_t StagefrightRecorder::setParamVideoEncodingBitRate(int32_t bitRate) {
349    LOGV("setParamVideoEncodingBitRate: %d", bitRate);
350    if (bitRate <= 0) {
351        LOGE("Invalid video encoding bit rate: %d", bitRate);
352        return BAD_VALUE;
353    }
354
355    // The target bit rate may not be exactly the same as the requested.
356    // It depends on many factors, such as rate control, and the bit rate
357    // range that a specific encoder supports. The mismatch between the
358    // the target and requested bit rate will NOT be treated as an error.
359    mVideoBitRate = bitRate;
360    return OK;
361}
362
363status_t StagefrightRecorder::setParamMaxFileDurationUs(int64_t timeUs) {
364    LOGV("setParamMaxFileDurationUs: %lld us", timeUs);
365    if (timeUs <= 0) {
366        LOGW("Max file duration is not positive: %lld us. Disabling duration limit.", timeUs);
367        timeUs = 0; // Disable the duration limit for zero or negative values.
368    } else if (timeUs <= 100000LL) {  // XXX: 100 milli-seconds
369        LOGE("Max file duration is too short: %lld us", timeUs);
370        return BAD_VALUE;
371    }
372
373    mMaxFileDurationUs = timeUs;
374    return OK;
375}
376
377status_t StagefrightRecorder::setParamMaxFileSizeBytes(int64_t bytes) {
378    LOGV("setParamMaxFileSizeBytes: %lld bytes", bytes);
379    if (bytes <= 1024) {  // XXX: 1 kB
380        LOGE("Max file size is too small: %lld bytes", bytes);
381        return BAD_VALUE;
382    }
383    mMaxFileSizeBytes = bytes;
384    return OK;
385}
386
387status_t StagefrightRecorder::setParamInterleaveDuration(int32_t durationUs) {
388    LOGV("setParamInterleaveDuration: %d", durationUs);
389    if (durationUs <= 500000) {           //  500 ms
390        // If interleave duration is too small, it is very inefficient to do
391        // interleaving since the metadata overhead will count for a significant
392        // portion of the saved contents
393        LOGE("Audio/video interleave duration is too small: %d us", durationUs);
394        return BAD_VALUE;
395    } else if (durationUs >= 10000000) {  // 10 seconds
396        // If interleaving duration is too large, it can cause the recording
397        // session to use too much memory since we have to save the output
398        // data before we write them out
399        LOGE("Audio/video interleave duration is too large: %d us", durationUs);
400        return BAD_VALUE;
401    }
402    mInterleaveDurationUs = durationUs;
403    return OK;
404}
405
406// If seconds <  0, only the first frame is I frame, and rest are all P frames
407// If seconds == 0, all frames are encoded as I frames. No P frames
408// If seconds >  0, it is the time spacing (seconds) between 2 neighboring I frames
409status_t StagefrightRecorder::setParamVideoIFramesInterval(int32_t seconds) {
410    LOGV("setParamVideoIFramesInterval: %d seconds", seconds);
411    mIFramesIntervalSec = seconds;
412    return OK;
413}
414
415status_t StagefrightRecorder::setParam64BitFileOffset(bool use64Bit) {
416    LOGV("setParam64BitFileOffset: %s",
417        use64Bit? "use 64 bit file offset": "use 32 bit file offset");
418    mUse64BitFileOffset = use64Bit;
419    return OK;
420}
421
422status_t StagefrightRecorder::setParamVideoCameraId(int32_t cameraId) {
423    LOGV("setParamVideoCameraId: %d", cameraId);
424    if (cameraId < 0) {
425        return BAD_VALUE;
426    }
427    mCameraId = cameraId;
428    return OK;
429}
430
431status_t StagefrightRecorder::setParamTrackTimeStatus(int64_t timeDurationUs) {
432    LOGV("setParamTrackTimeStatus: %lld", timeDurationUs);
433    if (timeDurationUs < 20000) {  // Infeasible if shorter than 20 ms?
434        LOGE("Tracking time duration too short: %lld us", timeDurationUs);
435        return BAD_VALUE;
436    }
437    mTrackEveryTimeDurationUs = timeDurationUs;
438    return OK;
439}
440
441status_t StagefrightRecorder::setParamVideoEncoderProfile(int32_t profile) {
442    LOGV("setParamVideoEncoderProfile: %d", profile);
443
444    // Additional check will be done later when we load the encoder.
445    // For now, we are accepting values defined in OpenMAX IL.
446    mVideoEncoderProfile = profile;
447    return OK;
448}
449
450status_t StagefrightRecorder::setParamVideoEncoderLevel(int32_t level) {
451    LOGV("setParamVideoEncoderLevel: %d", level);
452
453    // Additional check will be done later when we load the encoder.
454    // For now, we are accepting values defined in OpenMAX IL.
455    mVideoEncoderLevel = level;
456    return OK;
457}
458
459status_t StagefrightRecorder::setParamMovieTimeScale(int32_t timeScale) {
460    LOGV("setParamMovieTimeScale: %d", timeScale);
461
462    // The range is set to be the same as the audio's time scale range
463    // since audio's time scale has a wider range.
464    if (timeScale < 600 || timeScale > 96000) {
465        LOGE("Time scale (%d) for movie is out of range [600, 96000]", timeScale);
466        return BAD_VALUE;
467    }
468    mMovieTimeScale = timeScale;
469    return OK;
470}
471
472status_t StagefrightRecorder::setParamVideoTimeScale(int32_t timeScale) {
473    LOGV("setParamVideoTimeScale: %d", timeScale);
474
475    // 60000 is chosen to make sure that each video frame from a 60-fps
476    // video has 1000 ticks.
477    if (timeScale < 600 || timeScale > 60000) {
478        LOGE("Time scale (%d) for video is out of range [600, 60000]", timeScale);
479        return BAD_VALUE;
480    }
481    mVideoTimeScale = timeScale;
482    return OK;
483}
484
485status_t StagefrightRecorder::setParamAudioTimeScale(int32_t timeScale) {
486    LOGV("setParamAudioTimeScale: %d", timeScale);
487
488    // 96000 Hz is the highest sampling rate support in AAC.
489    if (timeScale < 600 || timeScale > 96000) {
490        LOGE("Time scale (%d) for audio is out of range [600, 96000]", timeScale);
491        return BAD_VALUE;
492    }
493    mAudioTimeScale = timeScale;
494    return OK;
495}
496
497status_t StagefrightRecorder::setParamTimeLapseEnable(int32_t timeLapseEnable) {
498    LOGV("setParamTimeLapseEnable: %d", timeLapseEnable);
499
500    if(timeLapseEnable == 0) {
501        mCaptureTimeLapse = false;
502    } else if (timeLapseEnable == 1) {
503        mCaptureTimeLapse = true;
504    } else {
505        return BAD_VALUE;
506    }
507    return OK;
508}
509
510status_t StagefrightRecorder::setParamTimeBetweenTimeLapseFrameCapture(int64_t timeUs) {
511    LOGV("setParamTimeBetweenTimeLapseFrameCapture: %lld us", timeUs);
512
513    // Not allowing time more than a day
514    if (timeUs <= 0 || timeUs > 86400*1E6) {
515        LOGE("Time between time lapse frame capture (%lld) is out of range [0, 1 Day]", timeUs);
516        return BAD_VALUE;
517    }
518
519    mTimeBetweenTimeLapseFrameCaptureUs = timeUs;
520    return OK;
521}
522
523status_t StagefrightRecorder::setParamAuxVideoWidth(int32_t width) {
524    LOGV("setParamAuxVideoWidth : %d", width);
525
526    if (width <= 0) {
527        LOGE("Width (%d) is not positive", width);
528        return BAD_VALUE;
529    }
530
531    mAuxVideoWidth = width;
532    return OK;
533}
534
535status_t StagefrightRecorder::setParamAuxVideoHeight(int32_t height) {
536    LOGV("setParamAuxVideoHeight : %d", height);
537
538    if (height <= 0) {
539        LOGE("Height (%d) is not positive", height);
540        return BAD_VALUE;
541    }
542
543    mAuxVideoHeight = height;
544    return OK;
545}
546
547status_t StagefrightRecorder::setParamAuxVideoEncodingBitRate(int32_t bitRate) {
548    LOGV("StagefrightRecorder::setParamAuxVideoEncodingBitRate: %d", bitRate);
549
550    if (bitRate <= 0) {
551        LOGE("Invalid video encoding bit rate: %d", bitRate);
552        return BAD_VALUE;
553    }
554
555    mAuxVideoBitRate = bitRate;
556    return OK;
557}
558
559status_t StagefrightRecorder::setParameter(
560        const String8 &key, const String8 &value) {
561    LOGV("setParameter: key (%s) => value (%s)", key.string(), value.string());
562    if (key == "max-duration") {
563        int64_t max_duration_ms;
564        if (safe_strtoi64(value.string(), &max_duration_ms)) {
565            return setParamMaxFileDurationUs(1000LL * max_duration_ms);
566        }
567    } else if (key == "max-filesize") {
568        int64_t max_filesize_bytes;
569        if (safe_strtoi64(value.string(), &max_filesize_bytes)) {
570            return setParamMaxFileSizeBytes(max_filesize_bytes);
571        }
572    } else if (key == "interleave-duration-us") {
573        int32_t durationUs;
574        if (safe_strtoi32(value.string(), &durationUs)) {
575            return setParamInterleaveDuration(durationUs);
576        }
577    } else if (key == "param-movie-time-scale") {
578        int32_t timeScale;
579        if (safe_strtoi32(value.string(), &timeScale)) {
580            return setParamMovieTimeScale(timeScale);
581        }
582    } else if (key == "param-use-64bit-offset") {
583        int32_t use64BitOffset;
584        if (safe_strtoi32(value.string(), &use64BitOffset)) {
585            return setParam64BitFileOffset(use64BitOffset != 0);
586        }
587    } else if (key == "param-track-time-status") {
588        int64_t timeDurationUs;
589        if (safe_strtoi64(value.string(), &timeDurationUs)) {
590            return setParamTrackTimeStatus(timeDurationUs);
591        }
592    } else if (key == "audio-param-sampling-rate") {
593        int32_t sampling_rate;
594        if (safe_strtoi32(value.string(), &sampling_rate)) {
595            return setParamAudioSamplingRate(sampling_rate);
596        }
597    } else if (key == "audio-param-number-of-channels") {
598        int32_t number_of_channels;
599        if (safe_strtoi32(value.string(), &number_of_channels)) {
600            return setParamAudioNumberOfChannels(number_of_channels);
601        }
602    } else if (key == "audio-param-encoding-bitrate") {
603        int32_t audio_bitrate;
604        if (safe_strtoi32(value.string(), &audio_bitrate)) {
605            return setParamAudioEncodingBitRate(audio_bitrate);
606        }
607    } else if (key == "audio-param-time-scale") {
608        int32_t timeScale;
609        if (safe_strtoi32(value.string(), &timeScale)) {
610            return setParamAudioTimeScale(timeScale);
611        }
612    } else if (key == "video-param-encoding-bitrate") {
613        int32_t video_bitrate;
614        if (safe_strtoi32(value.string(), &video_bitrate)) {
615            return setParamVideoEncodingBitRate(video_bitrate);
616        }
617    } else if (key == "video-param-i-frames-interval") {
618        int32_t seconds;
619        if (safe_strtoi32(value.string(), &seconds)) {
620            return setParamVideoIFramesInterval(seconds);
621        }
622    } else if (key == "video-param-encoder-profile") {
623        int32_t profile;
624        if (safe_strtoi32(value.string(), &profile)) {
625            return setParamVideoEncoderProfile(profile);
626        }
627    } else if (key == "video-param-encoder-level") {
628        int32_t level;
629        if (safe_strtoi32(value.string(), &level)) {
630            return setParamVideoEncoderLevel(level);
631        }
632    } else if (key == "video-param-camera-id") {
633        int32_t cameraId;
634        if (safe_strtoi32(value.string(), &cameraId)) {
635            return setParamVideoCameraId(cameraId);
636        }
637    } else if (key == "video-param-time-scale") {
638        int32_t timeScale;
639        if (safe_strtoi32(value.string(), &timeScale)) {
640            return setParamVideoTimeScale(timeScale);
641        }
642    } else if (key == "time-lapse-enable") {
643        int32_t timeLapseEnable;
644        if (safe_strtoi32(value.string(), &timeLapseEnable)) {
645            return setParamTimeLapseEnable(timeLapseEnable);
646        }
647    } else if (key == "time-between-time-lapse-frame-capture") {
648        int64_t timeBetweenTimeLapseFrameCaptureMs;
649        if (safe_strtoi64(value.string(), &timeBetweenTimeLapseFrameCaptureMs)) {
650            return setParamTimeBetweenTimeLapseFrameCapture(
651                    1000LL * timeBetweenTimeLapseFrameCaptureMs);
652        }
653    } else if (key == "video-aux-param-width") {
654        int32_t auxWidth;
655        if (safe_strtoi32(value.string(), &auxWidth)) {
656            return setParamAuxVideoWidth(auxWidth);
657        }
658    } else if (key == "video-aux-param-height") {
659        int32_t auxHeight;
660        if (safe_strtoi32(value.string(), &auxHeight)) {
661            return setParamAuxVideoHeight(auxHeight);
662        }
663    } else if (key == "video-aux-param-encoding-bitrate") {
664        int32_t auxVideoBitRate;
665        if (safe_strtoi32(value.string(), &auxVideoBitRate)) {
666            return setParamAuxVideoEncodingBitRate(auxVideoBitRate);
667        }
668    } else {
669        LOGE("setParameter: failed to find key %s", key.string());
670    }
671    return BAD_VALUE;
672}
673
674status_t StagefrightRecorder::setParameters(const String8 &params) {
675    LOGV("setParameters: %s", params.string());
676    const char *cparams = params.string();
677    const char *key_start = cparams;
678    for (;;) {
679        const char *equal_pos = strchr(key_start, '=');
680        if (equal_pos == NULL) {
681            LOGE("Parameters %s miss a value", cparams);
682            return BAD_VALUE;
683        }
684        String8 key(key_start, equal_pos - key_start);
685        TrimString(&key);
686        if (key.length() == 0) {
687            LOGE("Parameters %s contains an empty key", cparams);
688            return BAD_VALUE;
689        }
690        const char *value_start = equal_pos + 1;
691        const char *semicolon_pos = strchr(value_start, ';');
692        String8 value;
693        if (semicolon_pos == NULL) {
694            value.setTo(value_start);
695        } else {
696            value.setTo(value_start, semicolon_pos - value_start);
697        }
698        if (setParameter(key, value) != OK) {
699            return BAD_VALUE;
700        }
701        if (semicolon_pos == NULL) {
702            break;  // Reaches the end
703        }
704        key_start = semicolon_pos + 1;
705    }
706    return OK;
707}
708
709status_t StagefrightRecorder::setListener(const sp<IMediaRecorderClient> &listener) {
710    mListener = listener;
711
712    return OK;
713}
714
715status_t StagefrightRecorder::prepare() {
716    return OK;
717}
718
719status_t StagefrightRecorder::start() {
720    CHECK(mOutputFd >= 0);
721
722    if (mWriter != NULL) {
723        LOGE("File writer is not avaialble");
724        return UNKNOWN_ERROR;
725    }
726
727    switch (mOutputFormat) {
728        case OUTPUT_FORMAT_DEFAULT:
729        case OUTPUT_FORMAT_THREE_GPP:
730        case OUTPUT_FORMAT_MPEG_4:
731            return startMPEG4Recording();
732
733        case OUTPUT_FORMAT_AMR_NB:
734        case OUTPUT_FORMAT_AMR_WB:
735            return startAMRRecording();
736
737        case OUTPUT_FORMAT_AAC_ADIF:
738        case OUTPUT_FORMAT_AAC_ADTS:
739            return startAACRecording();
740
741        case OUTPUT_FORMAT_RTP_AVP:
742            return startRTPRecording();
743
744        default:
745            LOGE("Unsupported output file format: %d", mOutputFormat);
746            return UNKNOWN_ERROR;
747    }
748}
749
750sp<MediaSource> StagefrightRecorder::createAudioSource() {
751    sp<AudioSource> audioSource =
752        new AudioSource(
753                mAudioSource,
754                mSampleRate,
755                mAudioChannels);
756
757    status_t err = audioSource->initCheck();
758
759    if (err != OK) {
760        LOGE("audio source is not initialized");
761        return NULL;
762    }
763
764    sp<MetaData> encMeta = new MetaData;
765    const char *mime;
766    switch (mAudioEncoder) {
767        case AUDIO_ENCODER_AMR_NB:
768        case AUDIO_ENCODER_DEFAULT:
769            mime = MEDIA_MIMETYPE_AUDIO_AMR_NB;
770            break;
771        case AUDIO_ENCODER_AMR_WB:
772            mime = MEDIA_MIMETYPE_AUDIO_AMR_WB;
773            break;
774        case AUDIO_ENCODER_AAC:
775            mime = MEDIA_MIMETYPE_AUDIO_AAC;
776            break;
777        default:
778            LOGE("Unknown audio encoder: %d", mAudioEncoder);
779            return NULL;
780    }
781    encMeta->setCString(kKeyMIMEType, mime);
782
783    int32_t maxInputSize;
784    CHECK(audioSource->getFormat()->findInt32(
785                kKeyMaxInputSize, &maxInputSize));
786
787    encMeta->setInt32(kKeyMaxInputSize, maxInputSize);
788    encMeta->setInt32(kKeyChannelCount, mAudioChannels);
789    encMeta->setInt32(kKeySampleRate, mSampleRate);
790    encMeta->setInt32(kKeyBitRate, mAudioBitRate);
791    if (mAudioTimeScale > 0) {
792        encMeta->setInt32(kKeyTimeScale, mAudioTimeScale);
793    }
794
795    OMXClient client;
796    CHECK_EQ(client.connect(), OK);
797
798    sp<MediaSource> audioEncoder =
799        OMXCodec::Create(client.interface(), encMeta,
800                         true /* createEncoder */, audioSource);
801    mAudioSourceNode = audioSource;
802
803    return audioEncoder;
804}
805
806status_t StagefrightRecorder::startAACRecording() {
807    CHECK(mOutputFormat == OUTPUT_FORMAT_AAC_ADIF ||
808          mOutputFormat == OUTPUT_FORMAT_AAC_ADTS);
809
810    CHECK(mAudioEncoder == AUDIO_ENCODER_AAC);
811    CHECK(mAudioSource != AUDIO_SOURCE_LIST_END);
812
813    CHECK(0 == "AACWriter is not implemented yet");
814
815    return OK;
816}
817
818status_t StagefrightRecorder::startAMRRecording() {
819    CHECK(mOutputFormat == OUTPUT_FORMAT_AMR_NB ||
820          mOutputFormat == OUTPUT_FORMAT_AMR_WB);
821
822    if (mOutputFormat == OUTPUT_FORMAT_AMR_NB) {
823        if (mAudioEncoder != AUDIO_ENCODER_DEFAULT &&
824            mAudioEncoder != AUDIO_ENCODER_AMR_NB) {
825            LOGE("Invalid encoder %d used for AMRNB recording",
826                    mAudioEncoder);
827            return BAD_VALUE;
828        }
829        if (mSampleRate != 8000) {
830            LOGE("Invalid sampling rate %d used for AMRNB recording",
831                    mSampleRate);
832            return BAD_VALUE;
833        }
834    } else {  // mOutputFormat must be OUTPUT_FORMAT_AMR_WB
835        if (mAudioEncoder != AUDIO_ENCODER_AMR_WB) {
836            LOGE("Invlaid encoder %d used for AMRWB recording",
837                    mAudioEncoder);
838            return BAD_VALUE;
839        }
840        if (mSampleRate != 16000) {
841            LOGE("Invalid sample rate %d used for AMRWB recording",
842                    mSampleRate);
843            return BAD_VALUE;
844        }
845    }
846    if (mAudioChannels != 1) {
847        LOGE("Invalid number of audio channels %d used for amr recording",
848                mAudioChannels);
849        return BAD_VALUE;
850    }
851
852    if (mAudioSource >= AUDIO_SOURCE_LIST_END) {
853        LOGE("Invalid audio source: %d", mAudioSource);
854        return BAD_VALUE;
855    }
856
857    sp<MediaSource> audioEncoder = createAudioSource();
858
859    if (audioEncoder == NULL) {
860        return UNKNOWN_ERROR;
861    }
862
863    mWriter = new AMRWriter(dup(mOutputFd));
864    mWriter->addSource(audioEncoder);
865
866    if (mMaxFileDurationUs != 0) {
867        mWriter->setMaxFileDuration(mMaxFileDurationUs);
868    }
869    if (mMaxFileSizeBytes != 0) {
870        mWriter->setMaxFileSize(mMaxFileSizeBytes);
871    }
872    mWriter->setListener(mListener);
873    mWriter->start();
874
875    return OK;
876}
877
878status_t StagefrightRecorder::startRTPRecording() {
879    CHECK_EQ(mOutputFormat, OUTPUT_FORMAT_RTP_AVP);
880
881    if ((mAudioSource != AUDIO_SOURCE_LIST_END
882                && mVideoSource != VIDEO_SOURCE_LIST_END)
883            || (mAudioSource == AUDIO_SOURCE_LIST_END
884                && mVideoSource == VIDEO_SOURCE_LIST_END)) {
885        // Must have exactly one source.
886        return BAD_VALUE;
887    }
888
889    if (mOutputFd < 0) {
890        return BAD_VALUE;
891    }
892
893    sp<MediaSource> source;
894
895    if (mAudioSource != AUDIO_SOURCE_LIST_END) {
896        source = createAudioSource();
897    } else {
898
899        sp<CameraSource> cameraSource;
900        status_t err = setupCameraSource(&cameraSource);
901        if (err != OK) {
902            return err;
903        }
904
905        err = setupVideoEncoder(cameraSource, mVideoBitRate, &source);
906        if (err != OK) {
907            return err;
908        }
909    }
910
911    mWriter = new ARTPWriter(dup(mOutputFd));
912    mWriter->addSource(source);
913    mWriter->setListener(mListener);
914
915    return mWriter->start();
916}
917
918void StagefrightRecorder::clipVideoFrameRate() {
919    LOGV("clipVideoFrameRate: encoder %d", mVideoEncoder);
920    int minFrameRate = mEncoderProfiles->getVideoEncoderParamByName(
921                        "enc.vid.fps.min", mVideoEncoder);
922    int maxFrameRate = mEncoderProfiles->getVideoEncoderParamByName(
923                        "enc.vid.fps.max", mVideoEncoder);
924    if (mFrameRate < minFrameRate) {
925        LOGW("Intended video encoding frame rate (%d fps) is too small"
926             " and will be set to (%d fps)", mFrameRate, minFrameRate);
927        mFrameRate = minFrameRate;
928    } else if (mFrameRate > maxFrameRate) {
929        LOGW("Intended video encoding frame rate (%d fps) is too large"
930             " and will be set to (%d fps)", mFrameRate, maxFrameRate);
931        mFrameRate = maxFrameRate;
932    }
933}
934
935void StagefrightRecorder::clipVideoBitRate() {
936    LOGV("clipVideoBitRate: encoder %d", mVideoEncoder);
937    int minBitRate = mEncoderProfiles->getVideoEncoderParamByName(
938                        "enc.vid.bps.min", mVideoEncoder);
939    int maxBitRate = mEncoderProfiles->getVideoEncoderParamByName(
940                        "enc.vid.bps.max", mVideoEncoder);
941    if (mVideoBitRate < minBitRate) {
942        LOGW("Intended video encoding bit rate (%d bps) is too small"
943             " and will be set to (%d bps)", mVideoBitRate, minBitRate);
944        mVideoBitRate = minBitRate;
945    } else if (mVideoBitRate > maxBitRate) {
946        LOGW("Intended video encoding bit rate (%d bps) is too large"
947             " and will be set to (%d bps)", mVideoBitRate, maxBitRate);
948        mVideoBitRate = maxBitRate;
949    }
950}
951
952void StagefrightRecorder::clipVideoFrameWidth() {
953    LOGV("clipVideoFrameWidth: encoder %d", mVideoEncoder);
954    int minFrameWidth = mEncoderProfiles->getVideoEncoderParamByName(
955                        "enc.vid.width.min", mVideoEncoder);
956    int maxFrameWidth = mEncoderProfiles->getVideoEncoderParamByName(
957                        "enc.vid.width.max", mVideoEncoder);
958    if (mVideoWidth < minFrameWidth) {
959        LOGW("Intended video encoding frame width (%d) is too small"
960             " and will be set to (%d)", mVideoWidth, minFrameWidth);
961        mVideoWidth = minFrameWidth;
962    } else if (mVideoWidth > maxFrameWidth) {
963        LOGW("Intended video encoding frame width (%d) is too large"
964             " and will be set to (%d)", mVideoWidth, maxFrameWidth);
965        mVideoWidth = maxFrameWidth;
966    }
967}
968
969status_t StagefrightRecorder::setupCamera() {
970    if (!mCaptureTimeLapse) {
971        // Dont clip for time lapse capture as encoder will have enough
972        // time to encode because of slow capture rate of time lapse.
973        clipVideoBitRate();
974        clipVideoFrameRate();
975        clipVideoFrameWidth();
976        clipVideoFrameHeight();
977    }
978
979    int64_t token = IPCThreadState::self()->clearCallingIdentity();
980    if (mCamera == 0) {
981        mCamera = Camera::connect(mCameraId);
982        if (mCamera == 0) {
983            LOGE("Camera connection could not be established.");
984            return -EBUSY;
985        }
986        mFlags &= ~FLAGS_HOT_CAMERA;
987        mCamera->lock();
988    }
989
990    // Set the actual video recording frame size
991    CameraParameters params(mCamera->getParameters());
992
993    // dont change the preview size because time lapse may be using still camera
994    // as mVideoWidth, mVideoHeight may correspond to HD resolution not
995    // supported by the video camera.
996    if (!mCaptureTimeLapse) {
997        params.setPreviewSize(mVideoWidth, mVideoHeight);
998    }
999
1000    params.setPreviewFrameRate(mFrameRate);
1001    String8 s = params.flatten();
1002    if (OK != mCamera->setParameters(s)) {
1003        LOGE("Could not change settings."
1004             " Someone else is using camera %d?", mCameraId);
1005        return -EBUSY;
1006    }
1007    CameraParameters newCameraParams(mCamera->getParameters());
1008
1009    // Check on video frame size
1010    int frameWidth = 0, frameHeight = 0;
1011    newCameraParams.getPreviewSize(&frameWidth, &frameHeight);
1012    if (!mCaptureTimeLapse &&
1013        (frameWidth  < 0 || frameWidth  != mVideoWidth ||
1014        frameHeight < 0 || frameHeight != mVideoHeight)) {
1015        LOGE("Failed to set the video frame size to %dx%d",
1016                mVideoWidth, mVideoHeight);
1017        IPCThreadState::self()->restoreCallingIdentity(token);
1018        return UNKNOWN_ERROR;
1019    }
1020
1021    // Check on video frame rate
1022    int frameRate = newCameraParams.getPreviewFrameRate();
1023    if (frameRate < 0 || (frameRate - mFrameRate) != 0) {
1024        LOGE("Failed to set frame rate to %d fps. The actual "
1025             "frame rate is %d", mFrameRate, frameRate);
1026    }
1027
1028    // This CHECK is good, since we just passed the lock/unlock
1029    // check earlier by calling mCamera->setParameters().
1030    CHECK_EQ(OK, mCamera->setPreviewDisplay(mPreviewSurface));
1031    IPCThreadState::self()->restoreCallingIdentity(token);
1032    return OK;
1033}
1034
1035void StagefrightRecorder::clipVideoFrameHeight() {
1036    LOGV("clipVideoFrameHeight: encoder %d", mVideoEncoder);
1037    int minFrameHeight = mEncoderProfiles->getVideoEncoderParamByName(
1038                        "enc.vid.height.min", mVideoEncoder);
1039    int maxFrameHeight = mEncoderProfiles->getVideoEncoderParamByName(
1040                        "enc.vid.height.max", mVideoEncoder);
1041    if (mVideoHeight < minFrameHeight) {
1042        LOGW("Intended video encoding frame height (%d) is too small"
1043             " and will be set to (%d)", mVideoHeight, minFrameHeight);
1044        mVideoHeight = minFrameHeight;
1045    } else if (mVideoHeight > maxFrameHeight) {
1046        LOGW("Intended video encoding frame height (%d) is too large"
1047             " and will be set to (%d)", mVideoHeight, maxFrameHeight);
1048        mVideoHeight = maxFrameHeight;
1049    }
1050}
1051
1052status_t StagefrightRecorder::setupCameraSource(sp<CameraSource> *cameraSource) {
1053    status_t err = setupCamera();
1054    if (err != OK) return err;
1055
1056    *cameraSource = (mCaptureTimeLapse) ?
1057        CameraSourceTimeLapse::CreateFromCamera(mCamera,
1058                mTimeBetweenTimeLapseFrameCaptureUs, mVideoWidth, mVideoHeight, mFrameRate):
1059        CameraSource::CreateFromCamera(mCamera);
1060    CHECK(*cameraSource != NULL);
1061
1062    return OK;
1063}
1064
1065status_t StagefrightRecorder::setupVideoEncoder(
1066        sp<MediaSource> cameraSource,
1067        int32_t videoBitRate,
1068        sp<MediaSource> *source) {
1069    source->clear();
1070
1071    sp<MetaData> enc_meta = new MetaData;
1072    enc_meta->setInt32(kKeyBitRate, videoBitRate);
1073    enc_meta->setInt32(kKeySampleRate, mFrameRate);
1074
1075    switch (mVideoEncoder) {
1076        case VIDEO_ENCODER_H263:
1077            enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_H263);
1078            break;
1079
1080        case VIDEO_ENCODER_MPEG_4_SP:
1081            enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4);
1082            break;
1083
1084        case VIDEO_ENCODER_H264:
1085            enc_meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
1086            break;
1087
1088        default:
1089            CHECK(!"Should not be here, unsupported video encoding.");
1090            break;
1091    }
1092
1093    sp<MetaData> meta = cameraSource->getFormat();
1094
1095    int32_t width, height, stride, sliceHeight, colorFormat;
1096    CHECK(meta->findInt32(kKeyWidth, &width));
1097    CHECK(meta->findInt32(kKeyHeight, &height));
1098    CHECK(meta->findInt32(kKeyStride, &stride));
1099    CHECK(meta->findInt32(kKeySliceHeight, &sliceHeight));
1100    CHECK(meta->findInt32(kKeyColorFormat, &colorFormat));
1101
1102    enc_meta->setInt32(kKeyWidth, width);
1103    enc_meta->setInt32(kKeyHeight, height);
1104    enc_meta->setInt32(kKeyIFramesInterval, mIFramesIntervalSec);
1105    enc_meta->setInt32(kKeyStride, stride);
1106    enc_meta->setInt32(kKeySliceHeight, sliceHeight);
1107    enc_meta->setInt32(kKeyColorFormat, colorFormat);
1108    if (mVideoTimeScale > 0) {
1109        enc_meta->setInt32(kKeyTimeScale, mVideoTimeScale);
1110    }
1111    if (mVideoEncoderProfile != -1) {
1112        enc_meta->setInt32(kKeyVideoProfile, mVideoEncoderProfile);
1113    }
1114    if (mVideoEncoderLevel != -1) {
1115        enc_meta->setInt32(kKeyVideoLevel, mVideoEncoderLevel);
1116    } else if (mCaptureTimeLapse) {
1117        // Check if we are using high resolution and/or high bitrate and
1118        // set appropriate level for the software AVCEncoder.
1119        if ((width * height >= 921600) // 720p
1120                || (videoBitRate >= 20000000)) {
1121            enc_meta->setInt32(kKeyVideoLevel, 50);
1122        }
1123    }
1124
1125    OMXClient client;
1126    CHECK_EQ(client.connect(), OK);
1127
1128    // Use software codec for time lapse
1129    uint32_t encoder_flags = (mCaptureTimeLapse) ? OMXCodec::kPreferSoftwareCodecs : 0;
1130    sp<MediaSource> encoder = OMXCodec::Create(
1131            client.interface(), enc_meta,
1132            true /* createEncoder */, cameraSource,
1133            NULL, encoder_flags);
1134    if (encoder == NULL) {
1135        return UNKNOWN_ERROR;
1136    }
1137
1138    *source = encoder;
1139
1140    return OK;
1141}
1142
1143status_t StagefrightRecorder::setupAudioEncoder(const sp<MediaWriter>& writer) {
1144    sp<MediaSource> audioEncoder;
1145    switch(mAudioEncoder) {
1146        case AUDIO_ENCODER_AMR_NB:
1147        case AUDIO_ENCODER_AMR_WB:
1148        case AUDIO_ENCODER_AAC:
1149            audioEncoder = createAudioSource();
1150            break;
1151        default:
1152            LOGE("Unsupported audio encoder: %d", mAudioEncoder);
1153            return UNKNOWN_ERROR;
1154    }
1155
1156    if (audioEncoder == NULL) {
1157        return UNKNOWN_ERROR;
1158    }
1159
1160    writer->addSource(audioEncoder);
1161    return OK;
1162}
1163
1164status_t StagefrightRecorder::setupMPEG4Recording(
1165        bool useSplitCameraSource,
1166        int outputFd,
1167        int32_t videoWidth, int32_t videoHeight,
1168        int32_t videoBitRate,
1169        int32_t *totalBitRate,
1170        sp<MediaWriter> *mediaWriter) {
1171    mediaWriter->clear();
1172    *totalBitRate = 0;
1173    status_t err = OK;
1174    sp<MediaWriter> writer = new MPEG4Writer(dup(outputFd));
1175
1176    // Add audio source first if it exists
1177    if (!mCaptureTimeLapse && (mAudioSource != AUDIO_SOURCE_LIST_END)) {
1178        err = setupAudioEncoder(writer);
1179        if (err != OK) return err;
1180        *totalBitRate += mAudioBitRate;
1181    }
1182    if (mVideoSource == VIDEO_SOURCE_DEFAULT
1183            || mVideoSource == VIDEO_SOURCE_CAMERA) {
1184
1185        sp<MediaSource> cameraMediaSource;
1186        if (useSplitCameraSource) {
1187            LOGV("Using Split camera source");
1188            cameraMediaSource = mCameraSourceSplitter->createClient();
1189        } else {
1190            sp<CameraSource> cameraSource;
1191            err = setupCameraSource(&cameraSource);
1192            cameraMediaSource = cameraSource;
1193        }
1194        if ((videoWidth != mVideoWidth) || (videoHeight != mVideoHeight)) {
1195            // Use downsampling from the original source.
1196            cameraMediaSource =
1197                new VideoSourceDownSampler(cameraMediaSource, videoWidth, videoHeight);
1198        }
1199        if (err != OK) {
1200            return err;
1201        }
1202
1203        sp<MediaSource> encoder;
1204        err = setupVideoEncoder(cameraMediaSource, videoBitRate, &encoder);
1205        if (err != OK) {
1206            return err;
1207        }
1208
1209        writer->addSource(encoder);
1210        *totalBitRate += videoBitRate;
1211    }
1212
1213    if (mInterleaveDurationUs > 0) {
1214        reinterpret_cast<MPEG4Writer *>(writer.get())->
1215            setInterleaveDuration(mInterleaveDurationUs);
1216    }
1217    if (mMaxFileDurationUs != 0) {
1218        writer->setMaxFileDuration(mMaxFileDurationUs);
1219    }
1220    if (mMaxFileSizeBytes != 0) {
1221        writer->setMaxFileSize(mMaxFileSizeBytes);
1222    }
1223
1224    writer->setListener(mListener);
1225    *mediaWriter = writer;
1226    return OK;
1227}
1228
1229void StagefrightRecorder::setupMPEG4MetaData(int64_t startTimeUs, int32_t totalBitRate,
1230        sp<MetaData> *meta) {
1231    (*meta)->setInt64(kKeyTime, startTimeUs);
1232    (*meta)->setInt32(kKeyFileType, mOutputFormat);
1233    (*meta)->setInt32(kKeyBitRate, totalBitRate);
1234    (*meta)->setInt32(kKey64BitFileOffset, mUse64BitFileOffset);
1235    if (mMovieTimeScale > 0) {
1236        (*meta)->setInt32(kKeyTimeScale, mMovieTimeScale);
1237    }
1238    if (mTrackEveryTimeDurationUs > 0) {
1239        (*meta)->setInt64(kKeyTrackTimeStatus, mTrackEveryTimeDurationUs);
1240    }
1241}
1242
1243status_t StagefrightRecorder::startMPEG4Recording() {
1244    if (mCaptureAuxVideo) {
1245        if (!mCaptureTimeLapse) {
1246            LOGE("Auxiliary video can be captured only in time lapse mode");
1247            return UNKNOWN_ERROR;
1248        }
1249        LOGV("Creating MediaSourceSplitter");
1250        sp<CameraSource> cameraSource;
1251        status_t err = setupCameraSource(&cameraSource);
1252        if (err != OK) {
1253            return err;
1254        }
1255        mCameraSourceSplitter = new MediaSourceSplitter(cameraSource);
1256    } else {
1257        mCameraSourceSplitter = NULL;
1258    }
1259
1260    int32_t totalBitRate;
1261    status_t err = setupMPEG4Recording(mCaptureAuxVideo,
1262            mOutputFd, mVideoWidth, mVideoHeight,
1263            mVideoBitRate, &totalBitRate, &mWriter);
1264    if (err != OK) {
1265        return err;
1266    }
1267
1268    int64_t startTimeUs = systemTime() / 1000;
1269    sp<MetaData> meta = new MetaData;
1270    setupMPEG4MetaData(startTimeUs, totalBitRate, &meta);
1271
1272    err = mWriter->start(meta.get());
1273    if (err != OK) {
1274        return err;
1275    }
1276
1277    if (mCaptureAuxVideo) {
1278        CHECK(mOutputFdAux >= 0);
1279        if (mWriterAux != NULL) {
1280            LOGE("Auxiliary File writer is not avaialble");
1281            return UNKNOWN_ERROR;
1282        }
1283        if ((mAuxVideoWidth > mVideoWidth) || (mAuxVideoHeight > mVideoHeight) ||
1284                ((mAuxVideoWidth == mVideoWidth) && mAuxVideoHeight == mVideoHeight)) {
1285            LOGE("Auxiliary video size (%d x %d) same or larger than the main video size (%d x %d)",
1286                    mAuxVideoWidth, mAuxVideoHeight, mVideoWidth, mVideoHeight);
1287            return UNKNOWN_ERROR;
1288        }
1289
1290        int32_t totalBitrateAux;
1291        err = setupMPEG4Recording(mCaptureAuxVideo,
1292                mOutputFdAux, mAuxVideoWidth, mAuxVideoHeight,
1293                mAuxVideoBitRate, &totalBitrateAux, &mWriterAux);
1294        if (err != OK) {
1295            return err;
1296        }
1297
1298        sp<MetaData> metaAux = new MetaData;
1299        setupMPEG4MetaData(startTimeUs, totalBitrateAux, &metaAux);
1300
1301        return mWriterAux->start(metaAux.get());
1302    }
1303
1304    return OK;
1305}
1306
1307status_t StagefrightRecorder::pause() {
1308    LOGV("pause");
1309    if (mWriter == NULL) {
1310        return UNKNOWN_ERROR;
1311    }
1312    mWriter->pause();
1313
1314    if (mCaptureAuxVideo) {
1315        if (mWriterAux == NULL) {
1316            return UNKNOWN_ERROR;
1317        }
1318        mWriterAux->pause();
1319    }
1320
1321    return OK;
1322}
1323
1324status_t StagefrightRecorder::stop() {
1325    LOGV("stop");
1326    status_t err = OK;
1327
1328    if (mCaptureAuxVideo) {
1329        if (mWriterAux != NULL) {
1330            mWriterAux->stop();
1331            mWriterAux.clear();
1332        }
1333    }
1334
1335    if (mWriter != NULL) {
1336        err = mWriter->stop();
1337        mWriter.clear();
1338    }
1339
1340    if (mCamera != 0) {
1341        LOGV("Disconnect camera");
1342        int64_t token = IPCThreadState::self()->clearCallingIdentity();
1343        if ((mFlags & FLAGS_HOT_CAMERA) == 0) {
1344            LOGV("Camera was cold when we started, stopping preview");
1345            mCamera->stopPreview();
1346        }
1347        mCamera->unlock();
1348        mCamera.clear();
1349        IPCThreadState::self()->restoreCallingIdentity(token);
1350        mFlags = 0;
1351    }
1352
1353    if (mOutputFd >= 0) {
1354        ::close(mOutputFd);
1355        mOutputFd = -1;
1356    }
1357
1358    if (mCaptureAuxVideo) {
1359        if (mOutputFdAux >= 0) {
1360            ::close(mOutputFdAux);
1361            mOutputFdAux = -1;
1362        }
1363    }
1364
1365    return err;
1366}
1367
1368status_t StagefrightRecorder::close() {
1369    LOGV("close");
1370    stop();
1371
1372    return OK;
1373}
1374
1375status_t StagefrightRecorder::reset() {
1376    LOGV("reset");
1377    stop();
1378
1379    // No audio or video source by default
1380    mAudioSource = AUDIO_SOURCE_LIST_END;
1381    mVideoSource = VIDEO_SOURCE_LIST_END;
1382
1383    // Default parameters
1384    mOutputFormat  = OUTPUT_FORMAT_THREE_GPP;
1385    mAudioEncoder  = AUDIO_ENCODER_AMR_NB;
1386    mVideoEncoder  = VIDEO_ENCODER_H263;
1387    mVideoWidth    = 176;
1388    mVideoHeight   = 144;
1389    mAuxVideoWidth    = 176;
1390    mAuxVideoHeight   = 144;
1391    mFrameRate     = 20;
1392    mVideoBitRate  = 192000;
1393    mAuxVideoBitRate = 192000;
1394    mSampleRate    = 8000;
1395    mAudioChannels = 1;
1396    mAudioBitRate  = 12200;
1397    mInterleaveDurationUs = 0;
1398    mIFramesIntervalSec = 1;
1399    mAudioSourceNode = 0;
1400    mUse64BitFileOffset = false;
1401    mMovieTimeScale  = -1;
1402    mAudioTimeScale  = -1;
1403    mVideoTimeScale  = -1;
1404    mCameraId        = 0;
1405    mVideoEncoderProfile = -1;
1406    mVideoEncoderLevel   = -1;
1407    mMaxFileDurationUs = 0;
1408    mMaxFileSizeBytes = 0;
1409    mTrackEveryTimeDurationUs = 0;
1410    mCaptureTimeLapse = false;
1411    mTimeBetweenTimeLapseFrameCaptureUs = -1;
1412    mCaptureAuxVideo = false;
1413    mCameraSourceSplitter = NULL;
1414    mEncoderProfiles = MediaProfiles::getInstance();
1415
1416    mOutputFd = -1;
1417    mOutputFdAux = -1;
1418    mFlags = 0;
1419
1420    return OK;
1421}
1422
1423status_t StagefrightRecorder::getMaxAmplitude(int *max) {
1424    LOGV("getMaxAmplitude");
1425
1426    if (max == NULL) {
1427        LOGE("Null pointer argument");
1428        return BAD_VALUE;
1429    }
1430
1431    if (mAudioSourceNode != 0) {
1432        *max = mAudioSourceNode->getMaxAmplitude();
1433    } else {
1434        *max = 0;
1435    }
1436
1437    return OK;
1438}
1439
1440status_t StagefrightRecorder::dump(
1441        int fd, const Vector<String16>& args) const {
1442    LOGV("dump");
1443    const size_t SIZE = 256;
1444    char buffer[SIZE];
1445    String8 result;
1446    if (mWriter != 0) {
1447        mWriter->dump(fd, args);
1448    } else {
1449        snprintf(buffer, SIZE, "   No file writer\n");
1450        result.append(buffer);
1451    }
1452    snprintf(buffer, SIZE, "   Recorder: %p\n", this);
1453    snprintf(buffer, SIZE, "   Output file (fd %d):\n", mOutputFd);
1454    result.append(buffer);
1455    snprintf(buffer, SIZE, "   Output file Auxiliary (fd %d):\n", mOutputFdAux);
1456    result.append(buffer);
1457    snprintf(buffer, SIZE, "     File format: %d\n", mOutputFormat);
1458    result.append(buffer);
1459    snprintf(buffer, SIZE, "     Max file size (bytes): %lld\n", mMaxFileSizeBytes);
1460    result.append(buffer);
1461    snprintf(buffer, SIZE, "     Max file duration (us): %lld\n", mMaxFileDurationUs);
1462    result.append(buffer);
1463    snprintf(buffer, SIZE, "     File offset length (bits): %d\n", mUse64BitFileOffset? 64: 32);
1464    result.append(buffer);
1465    snprintf(buffer, SIZE, "     Interleave duration (us): %d\n", mInterleaveDurationUs);
1466    result.append(buffer);
1467    snprintf(buffer, SIZE, "     Progress notification: %lld us\n", mTrackEveryTimeDurationUs);
1468    result.append(buffer);
1469    snprintf(buffer, SIZE, "   Audio\n");
1470    result.append(buffer);
1471    snprintf(buffer, SIZE, "     Source: %d\n", mAudioSource);
1472    result.append(buffer);
1473    snprintf(buffer, SIZE, "     Encoder: %d\n", mAudioEncoder);
1474    result.append(buffer);
1475    snprintf(buffer, SIZE, "     Bit rate (bps): %d\n", mAudioBitRate);
1476    result.append(buffer);
1477    snprintf(buffer, SIZE, "     Sampling rate (hz): %d\n", mSampleRate);
1478    result.append(buffer);
1479    snprintf(buffer, SIZE, "     Number of channels: %d\n", mAudioChannels);
1480    result.append(buffer);
1481    snprintf(buffer, SIZE, "     Max amplitude: %d\n", mAudioSourceNode == 0? 0: mAudioSourceNode->getMaxAmplitude());
1482    result.append(buffer);
1483    snprintf(buffer, SIZE, "   Video\n");
1484    result.append(buffer);
1485    snprintf(buffer, SIZE, "     Source: %d\n", mVideoSource);
1486    result.append(buffer);
1487    snprintf(buffer, SIZE, "     Camera Id: %d\n", mCameraId);
1488    result.append(buffer);
1489    snprintf(buffer, SIZE, "     Camera flags: %d\n", mFlags);
1490    result.append(buffer);
1491    snprintf(buffer, SIZE, "     Encoder: %d\n", mVideoEncoder);
1492    result.append(buffer);
1493    snprintf(buffer, SIZE, "     Encoder profile: %d\n", mVideoEncoderProfile);
1494    result.append(buffer);
1495    snprintf(buffer, SIZE, "     Encoder level: %d\n", mVideoEncoderLevel);
1496    result.append(buffer);
1497    snprintf(buffer, SIZE, "     I frames interval (s): %d\n", mIFramesIntervalSec);
1498    result.append(buffer);
1499    snprintf(buffer, SIZE, "     Frame size (pixels): %dx%d\n", mVideoWidth, mVideoHeight);
1500    result.append(buffer);
1501    snprintf(buffer, SIZE, "     Aux Frame size (pixels): %dx%d\n", mAuxVideoWidth, mAuxVideoHeight);
1502    result.append(buffer);
1503    snprintf(buffer, SIZE, "     Frame rate (fps): %d\n", mFrameRate);
1504    result.append(buffer);
1505    snprintf(buffer, SIZE, "     Bit rate (bps): %d\n", mVideoBitRate);
1506    result.append(buffer);
1507    snprintf(buffer, SIZE, "     Aux Bit rate (bps): %d\n", mAuxVideoBitRate);
1508    result.append(buffer);
1509    ::write(fd, result.string(), result.size());
1510    return OK;
1511}
1512}  // namespace android
1513