StagefrightRecorder.cpp revision 98a668f6ea51e4d894d2ebb61a0e18287fb14008 
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 <inttypes.h>
20#include <utils/Log.h>
21
22#include "WebmWriter.h"
23#include "StagefrightRecorder.h"
24
25#include <binder/IPCThreadState.h>
26#include <binder/IServiceManager.h>
27
28#include <media/IMediaPlayerService.h>
29#include <media/stagefright/foundation/ABuffer.h>
30#include <media/stagefright/foundation/ADebug.h>
31#include <media/stagefright/foundation/AMessage.h>
32#include <media/stagefright/foundation/ALooper.h>
33#include <media/stagefright/ACodec.h>
34#include <media/stagefright/AudioSource.h>
35#include <media/stagefright/AMRWriter.h>
36#include <media/stagefright/AACWriter.h>
37#include <media/stagefright/CameraSource.h>
38#include <media/stagefright/CameraSourceTimeLapse.h>
39#include <media/stagefright/MPEG2TSWriter.h>
40#include <media/stagefright/MPEG4Writer.h>
41#include <media/stagefright/MediaDefs.h>
42#include <media/stagefright/MetaData.h>
43#include <media/stagefright/MediaCodecSource.h>
44#include <media/stagefright/OMXClient.h>
45#include <media/stagefright/OMXCodec.h>
46#include <media/MediaProfiles.h>
47#include <camera/ICamera.h>
48#include <camera/CameraParameters.h>
49
50#include <utils/Errors.h>
51#include <sys/types.h>
52#include <ctype.h>
53#include <unistd.h>
54
55#include <system/audio.h>
56
57#include "ARTPWriter.h"
58
59namespace android {
60
61// To collect the encoder usage for the battery app
62static void addBatteryData(uint32_t params) {
63    sp<IBinder> binder =
64        defaultServiceManager()->getService(String16("media.player"));
65    sp<IMediaPlayerService> service = interface_cast<IMediaPlayerService>(binder);
66    CHECK(service.get() != NULL);
67
68    service->addBatteryData(params);
69}
70
71
72StagefrightRecorder::StagefrightRecorder(const String16 &opPackageName)
73    : MediaRecorderBase(opPackageName),
74      mWriter(NULL),
75      mOutputFd(-1),
76      mAudioSource(AUDIO_SOURCE_CNT),
77      mVideoSource(VIDEO_SOURCE_LIST_END),
78      mStarted(false) {
79
80    ALOGV("Constructor");
81    reset();
82}
83
84StagefrightRecorder::~StagefrightRecorder() {
85    ALOGV("Destructor");
86    stop();
87
88    if (mLooper != NULL) {
89        mLooper->stop();
90    }
91}
92
93status_t StagefrightRecorder::init() {
94    ALOGV("init");
95
96    mLooper = new ALooper;
97    mLooper->setName("recorder_looper");
98    mLooper->start();
99
100    return OK;
101}
102
103// The client side of mediaserver asks it to creat a SurfaceMediaSource
104// and return a interface reference. The client side will use that
105// while encoding GL Frames
106sp<IGraphicBufferProducer> StagefrightRecorder::querySurfaceMediaSource() const {
107    ALOGV("Get SurfaceMediaSource");
108    return mGraphicBufferProducer;
109}
110
111status_t StagefrightRecorder::setAudioSource(audio_source_t as) {
112    ALOGV("setAudioSource: %d", as);
113    if (as < AUDIO_SOURCE_DEFAULT ||
114        (as >= AUDIO_SOURCE_CNT && as != AUDIO_SOURCE_FM_TUNER)) {
115        ALOGE("Invalid audio source: %d", as);
116        return BAD_VALUE;
117    }
118
119    if (as == AUDIO_SOURCE_DEFAULT) {
120        mAudioSource = AUDIO_SOURCE_MIC;
121    } else {
122        mAudioSource = as;
123    }
124
125    return OK;
126}
127
128status_t StagefrightRecorder::setVideoSource(video_source vs) {
129    ALOGV("setVideoSource: %d", vs);
130    if (vs < VIDEO_SOURCE_DEFAULT ||
131        vs >= VIDEO_SOURCE_LIST_END) {
132        ALOGE("Invalid video source: %d", vs);
133        return BAD_VALUE;
134    }
135
136    if (vs == VIDEO_SOURCE_DEFAULT) {
137        mVideoSource = VIDEO_SOURCE_CAMERA;
138    } else {
139        mVideoSource = vs;
140    }
141
142    return OK;
143}
144
145status_t StagefrightRecorder::setOutputFormat(output_format of) {
146    ALOGV("setOutputFormat: %d", of);
147    if (of < OUTPUT_FORMAT_DEFAULT ||
148        of >= OUTPUT_FORMAT_LIST_END) {
149        ALOGE("Invalid output format: %d", of);
150        return BAD_VALUE;
151    }
152
153    if (of == OUTPUT_FORMAT_DEFAULT) {
154        mOutputFormat = OUTPUT_FORMAT_THREE_GPP;
155    } else {
156        mOutputFormat = of;
157    }
158
159    return OK;
160}
161
162status_t StagefrightRecorder::setAudioEncoder(audio_encoder ae) {
163    ALOGV("setAudioEncoder: %d", ae);
164    if (ae < AUDIO_ENCODER_DEFAULT ||
165        ae >= AUDIO_ENCODER_LIST_END) {
166        ALOGE("Invalid audio encoder: %d", ae);
167        return BAD_VALUE;
168    }
169
170    if (ae == AUDIO_ENCODER_DEFAULT) {
171        mAudioEncoder = AUDIO_ENCODER_AMR_NB;
172    } else {
173        mAudioEncoder = ae;
174    }
175
176    return OK;
177}
178
179status_t StagefrightRecorder::setVideoEncoder(video_encoder ve) {
180    ALOGV("setVideoEncoder: %d", ve);
181    if (ve < VIDEO_ENCODER_DEFAULT ||
182        ve >= VIDEO_ENCODER_LIST_END) {
183        ALOGE("Invalid video encoder: %d", ve);
184        return BAD_VALUE;
185    }
186
187    mVideoEncoder = ve;
188
189    return OK;
190}
191
192status_t StagefrightRecorder::setVideoSize(int width, int height) {
193    ALOGV("setVideoSize: %dx%d", width, height);
194    if (width <= 0 || height <= 0) {
195        ALOGE("Invalid video size: %dx%d", width, height);
196        return BAD_VALUE;
197    }
198
199    // Additional check on the dimension will be performed later
200    mVideoWidth = width;
201    mVideoHeight = height;
202
203    return OK;
204}
205
206status_t StagefrightRecorder::setVideoFrameRate(int frames_per_second) {
207    ALOGV("setVideoFrameRate: %d", frames_per_second);
208    if ((frames_per_second <= 0 && frames_per_second != -1) ||
209        frames_per_second > kMaxHighSpeedFps) {
210        ALOGE("Invalid video frame rate: %d", frames_per_second);
211        return BAD_VALUE;
212    }
213
214    // Additional check on the frame rate will be performed later
215    mFrameRate = frames_per_second;
216
217    return OK;
218}
219
220status_t StagefrightRecorder::setCamera(const sp<ICamera> &camera,
221                                        const sp<ICameraRecordingProxy> &proxy) {
222    ALOGV("setCamera");
223    if (camera == 0) {
224        ALOGE("camera is NULL");
225        return BAD_VALUE;
226    }
227    if (proxy == 0) {
228        ALOGE("camera proxy is NULL");
229        return BAD_VALUE;
230    }
231
232    mCamera = camera;
233    mCameraProxy = proxy;
234    return OK;
235}
236
237status_t StagefrightRecorder::setPreviewSurface(const sp<IGraphicBufferProducer> &surface) {
238    ALOGV("setPreviewSurface: %p", surface.get());
239    mPreviewSurface = surface;
240
241    return OK;
242}
243
244status_t StagefrightRecorder::setInputSurface(
245        const sp<IGraphicBufferConsumer>& surface) {
246    mPersistentSurface = surface;
247
248    return OK;
249}
250
251status_t StagefrightRecorder::setOutputFile(int fd, int64_t offset, int64_t length) {
252    ALOGV("setOutputFile: %d, %lld, %lld", fd, offset, length);
253    // These don't make any sense, do they?
254    CHECK_EQ(offset, 0ll);
255    CHECK_EQ(length, 0ll);
256
257    if (fd < 0) {
258        ALOGE("Invalid file descriptor: %d", fd);
259        return -EBADF;
260    }
261
262    // start with a clean, empty file
263    ftruncate(fd, 0);
264
265    if (mOutputFd >= 0) {
266        ::close(mOutputFd);
267    }
268    mOutputFd = dup(fd);
269
270    return OK;
271}
272
273// Attempt to parse an float literal optionally surrounded by whitespace,
274// returns true on success, false otherwise.
275static bool safe_strtof(const char *s, float *val) {
276    char *end;
277
278    // It is lame, but according to man page, we have to set errno to 0
279    // before calling strtof().
280    errno = 0;
281    *val = strtof(s, &end);
282
283    if (end == s || errno == ERANGE) {
284        return false;
285    }
286
287    // Skip trailing whitespace
288    while (isspace(*end)) {
289        ++end;
290    }
291
292    // For a successful return, the string must contain nothing but a valid
293    // float literal optionally surrounded by whitespace.
294
295    return *end == '\0';
296}
297
298// Attempt to parse an int64 literal optionally surrounded by whitespace,
299// returns true on success, false otherwise.
300static bool safe_strtoi64(const char *s, int64_t *val) {
301    char *end;
302
303    // It is lame, but according to man page, we have to set errno to 0
304    // before calling strtoll().
305    errno = 0;
306    *val = strtoll(s, &end, 10);
307
308    if (end == s || errno == ERANGE) {
309        return false;
310    }
311
312    // Skip trailing whitespace
313    while (isspace(*end)) {
314        ++end;
315    }
316
317    // For a successful return, the string must contain nothing but a valid
318    // int64 literal optionally surrounded by whitespace.
319
320    return *end == '\0';
321}
322
323// Return true if the value is in [0, 0x007FFFFFFF]
324static bool safe_strtoi32(const char *s, int32_t *val) {
325    int64_t temp;
326    if (safe_strtoi64(s, &temp)) {
327        if (temp >= 0 && temp <= 0x007FFFFFFF) {
328            *val = static_cast<int32_t>(temp);
329            return true;
330        }
331    }
332    return false;
333}
334
335// Trim both leading and trailing whitespace from the given string.
336static void TrimString(String8 *s) {
337    size_t num_bytes = s->bytes();
338    const char *data = s->string();
339
340    size_t leading_space = 0;
341    while (leading_space < num_bytes && isspace(data[leading_space])) {
342        ++leading_space;
343    }
344
345    size_t i = num_bytes;
346    while (i > leading_space && isspace(data[i - 1])) {
347        --i;
348    }
349
350    s->setTo(String8(&data[leading_space], i - leading_space));
351}
352
353status_t StagefrightRecorder::setParamAudioSamplingRate(int32_t sampleRate) {
354    ALOGV("setParamAudioSamplingRate: %d", sampleRate);
355    if (sampleRate <= 0) {
356        ALOGE("Invalid audio sampling rate: %d", sampleRate);
357        return BAD_VALUE;
358    }
359
360    // Additional check on the sample rate will be performed later.
361    mSampleRate = sampleRate;
362    return OK;
363}
364
365status_t StagefrightRecorder::setParamAudioNumberOfChannels(int32_t channels) {
366    ALOGV("setParamAudioNumberOfChannels: %d", channels);
367    if (channels <= 0 || channels >= 3) {
368        ALOGE("Invalid number of audio channels: %d", channels);
369        return BAD_VALUE;
370    }
371
372    // Additional check on the number of channels will be performed later.
373    mAudioChannels = channels;
374    return OK;
375}
376
377status_t StagefrightRecorder::setParamAudioEncodingBitRate(int32_t bitRate) {
378    ALOGV("setParamAudioEncodingBitRate: %d", bitRate);
379    if (bitRate <= 0) {
380        ALOGE("Invalid audio encoding bit rate: %d", bitRate);
381        return BAD_VALUE;
382    }
383
384    // The target bit rate may not be exactly the same as the requested.
385    // It depends on many factors, such as rate control, and the bit rate
386    // range that a specific encoder supports. The mismatch between the
387    // the target and requested bit rate will NOT be treated as an error.
388    mAudioBitRate = bitRate;
389    return OK;
390}
391
392status_t StagefrightRecorder::setParamVideoEncodingBitRate(int32_t bitRate) {
393    ALOGV("setParamVideoEncodingBitRate: %d", bitRate);
394    if (bitRate <= 0) {
395        ALOGE("Invalid video encoding bit rate: %d", bitRate);
396        return BAD_VALUE;
397    }
398
399    // The target bit rate may not be exactly the same as the requested.
400    // It depends on many factors, such as rate control, and the bit rate
401    // range that a specific encoder supports. The mismatch between the
402    // the target and requested bit rate will NOT be treated as an error.
403    mVideoBitRate = bitRate;
404    return OK;
405}
406
407// Always rotate clockwise, and only support 0, 90, 180 and 270 for now.
408status_t StagefrightRecorder::setParamVideoRotation(int32_t degrees) {
409    ALOGV("setParamVideoRotation: %d", degrees);
410    if (degrees < 0 || degrees % 90 != 0) {
411        ALOGE("Unsupported video rotation angle: %d", degrees);
412        return BAD_VALUE;
413    }
414    mRotationDegrees = degrees % 360;
415    return OK;
416}
417
418status_t StagefrightRecorder::setParamMaxFileDurationUs(int64_t timeUs) {
419    ALOGV("setParamMaxFileDurationUs: %lld us", timeUs);
420
421    // This is meant for backward compatibility for MediaRecorder.java
422    if (timeUs <= 0) {
423        ALOGW("Max file duration is not positive: %lld us. Disabling duration limit.", timeUs);
424        timeUs = 0; // Disable the duration limit for zero or negative values.
425    } else if (timeUs <= 100000LL) {  // XXX: 100 milli-seconds
426        ALOGE("Max file duration is too short: %lld us", timeUs);
427        return BAD_VALUE;
428    }
429
430    if (timeUs <= 15 * 1000000LL) {
431        ALOGW("Target duration (%lld us) too short to be respected", timeUs);
432    }
433    mMaxFileDurationUs = timeUs;
434    return OK;
435}
436
437status_t StagefrightRecorder::setParamMaxFileSizeBytes(int64_t bytes) {
438    ALOGV("setParamMaxFileSizeBytes: %lld bytes", bytes);
439
440    // This is meant for backward compatibility for MediaRecorder.java
441    if (bytes <= 0) {
442        ALOGW("Max file size is not positive: %lld bytes. "
443             "Disabling file size limit.", bytes);
444        bytes = 0; // Disable the file size limit for zero or negative values.
445    } else if (bytes <= 1024) {  // XXX: 1 kB
446        ALOGE("Max file size is too small: %lld bytes", bytes);
447        return BAD_VALUE;
448    }
449
450    if (bytes <= 100 * 1024) {
451        ALOGW("Target file size (%lld bytes) is too small to be respected", bytes);
452    }
453
454    mMaxFileSizeBytes = bytes;
455    return OK;
456}
457
458status_t StagefrightRecorder::setParamInterleaveDuration(int32_t durationUs) {
459    ALOGV("setParamInterleaveDuration: %d", durationUs);
460    if (durationUs <= 500000) {           //  500 ms
461        // If interleave duration is too small, it is very inefficient to do
462        // interleaving since the metadata overhead will count for a significant
463        // portion of the saved contents
464        ALOGE("Audio/video interleave duration is too small: %d us", durationUs);
465        return BAD_VALUE;
466    } else if (durationUs >= 10000000) {  // 10 seconds
467        // If interleaving duration is too large, it can cause the recording
468        // session to use too much memory since we have to save the output
469        // data before we write them out
470        ALOGE("Audio/video interleave duration is too large: %d us", durationUs);
471        return BAD_VALUE;
472    }
473    mInterleaveDurationUs = durationUs;
474    return OK;
475}
476
477// If seconds <  0, only the first frame is I frame, and rest are all P frames
478// If seconds == 0, all frames are encoded as I frames. No P frames
479// If seconds >  0, it is the time spacing (seconds) between 2 neighboring I frames
480status_t StagefrightRecorder::setParamVideoIFramesInterval(int32_t seconds) {
481    ALOGV("setParamVideoIFramesInterval: %d seconds", seconds);
482    mIFramesIntervalSec = seconds;
483    return OK;
484}
485
486status_t StagefrightRecorder::setParam64BitFileOffset(bool use64Bit) {
487    ALOGV("setParam64BitFileOffset: %s",
488        use64Bit? "use 64 bit file offset": "use 32 bit file offset");
489    mUse64BitFileOffset = use64Bit;
490    return OK;
491}
492
493status_t StagefrightRecorder::setParamVideoCameraId(int32_t cameraId) {
494    ALOGV("setParamVideoCameraId: %d", cameraId);
495    if (cameraId < 0) {
496        return BAD_VALUE;
497    }
498    mCameraId = cameraId;
499    return OK;
500}
501
502status_t StagefrightRecorder::setParamTrackTimeStatus(int64_t timeDurationUs) {
503    ALOGV("setParamTrackTimeStatus: %lld", timeDurationUs);
504    if (timeDurationUs < 20000) {  // Infeasible if shorter than 20 ms?
505        ALOGE("Tracking time duration too short: %lld us", timeDurationUs);
506        return BAD_VALUE;
507    }
508    mTrackEveryTimeDurationUs = timeDurationUs;
509    return OK;
510}
511
512status_t StagefrightRecorder::setParamVideoEncoderProfile(int32_t profile) {
513    ALOGV("setParamVideoEncoderProfile: %d", profile);
514
515    // Additional check will be done later when we load the encoder.
516    // For now, we are accepting values defined in OpenMAX IL.
517    mVideoEncoderProfile = profile;
518    return OK;
519}
520
521status_t StagefrightRecorder::setParamVideoEncoderLevel(int32_t level) {
522    ALOGV("setParamVideoEncoderLevel: %d", level);
523
524    // Additional check will be done later when we load the encoder.
525    // For now, we are accepting values defined in OpenMAX IL.
526    mVideoEncoderLevel = level;
527    return OK;
528}
529
530status_t StagefrightRecorder::setParamMovieTimeScale(int32_t timeScale) {
531    ALOGV("setParamMovieTimeScale: %d", timeScale);
532
533    // The range is set to be the same as the audio's time scale range
534    // since audio's time scale has a wider range.
535    if (timeScale < 600 || timeScale > 96000) {
536        ALOGE("Time scale (%d) for movie is out of range [600, 96000]", timeScale);
537        return BAD_VALUE;
538    }
539    mMovieTimeScale = timeScale;
540    return OK;
541}
542
543status_t StagefrightRecorder::setParamVideoTimeScale(int32_t timeScale) {
544    ALOGV("setParamVideoTimeScale: %d", timeScale);
545
546    // 60000 is chosen to make sure that each video frame from a 60-fps
547    // video has 1000 ticks.
548    if (timeScale < 600 || timeScale > 60000) {
549        ALOGE("Time scale (%d) for video is out of range [600, 60000]", timeScale);
550        return BAD_VALUE;
551    }
552    mVideoTimeScale = timeScale;
553    return OK;
554}
555
556status_t StagefrightRecorder::setParamAudioTimeScale(int32_t timeScale) {
557    ALOGV("setParamAudioTimeScale: %d", timeScale);
558
559    // 96000 Hz is the highest sampling rate support in AAC.
560    if (timeScale < 600 || timeScale > 96000) {
561        ALOGE("Time scale (%d) for audio is out of range [600, 96000]", timeScale);
562        return BAD_VALUE;
563    }
564    mAudioTimeScale = timeScale;
565    return OK;
566}
567
568status_t StagefrightRecorder::setParamCaptureFpsEnable(int32_t captureFpsEnable) {
569    ALOGV("setParamCaptureFpsEnable: %d", captureFpsEnable);
570
571    if(captureFpsEnable == 0) {
572        mCaptureFpsEnable = false;
573    } else if (captureFpsEnable == 1) {
574        mCaptureFpsEnable = true;
575    } else {
576        return BAD_VALUE;
577    }
578    return OK;
579}
580
581status_t StagefrightRecorder::setParamCaptureFps(float fps) {
582    ALOGV("setParamCaptureFps: %.2f", fps);
583
584    int64_t timeUs = (int64_t) (1000000.0 / fps + 0.5f);
585
586    // Not allowing time more than a day
587    if (timeUs <= 0 || timeUs > 86400*1E6) {
588        ALOGE("Time between frame capture (%lld) is out of range [0, 1 Day]", timeUs);
589        return BAD_VALUE;
590    }
591
592    mCaptureFps = fps;
593    mTimeBetweenCaptureUs = timeUs;
594    return OK;
595}
596
597status_t StagefrightRecorder::setParamGeoDataLongitude(
598    int64_t longitudex10000) {
599
600    if (longitudex10000 > 1800000 || longitudex10000 < -1800000) {
601        return BAD_VALUE;
602    }
603    mLongitudex10000 = longitudex10000;
604    return OK;
605}
606
607status_t StagefrightRecorder::setParamGeoDataLatitude(
608    int64_t latitudex10000) {
609
610    if (latitudex10000 > 900000 || latitudex10000 < -900000) {
611        return BAD_VALUE;
612    }
613    mLatitudex10000 = latitudex10000;
614    return OK;
615}
616
617status_t StagefrightRecorder::setParameter(
618        const String8 &key, const String8 &value) {
619    ALOGV("setParameter: key (%s) => value (%s)", key.string(), value.string());
620    if (key == "max-duration") {
621        int64_t max_duration_ms;
622        if (safe_strtoi64(value.string(), &max_duration_ms)) {
623            return setParamMaxFileDurationUs(1000LL * max_duration_ms);
624        }
625    } else if (key == "max-filesize") {
626        int64_t max_filesize_bytes;
627        if (safe_strtoi64(value.string(), &max_filesize_bytes)) {
628            return setParamMaxFileSizeBytes(max_filesize_bytes);
629        }
630    } else if (key == "interleave-duration-us") {
631        int32_t durationUs;
632        if (safe_strtoi32(value.string(), &durationUs)) {
633            return setParamInterleaveDuration(durationUs);
634        }
635    } else if (key == "param-movie-time-scale") {
636        int32_t timeScale;
637        if (safe_strtoi32(value.string(), &timeScale)) {
638            return setParamMovieTimeScale(timeScale);
639        }
640    } else if (key == "param-use-64bit-offset") {
641        int32_t use64BitOffset;
642        if (safe_strtoi32(value.string(), &use64BitOffset)) {
643            return setParam64BitFileOffset(use64BitOffset != 0);
644        }
645    } else if (key == "param-geotag-longitude") {
646        int64_t longitudex10000;
647        if (safe_strtoi64(value.string(), &longitudex10000)) {
648            return setParamGeoDataLongitude(longitudex10000);
649        }
650    } else if (key == "param-geotag-latitude") {
651        int64_t latitudex10000;
652        if (safe_strtoi64(value.string(), &latitudex10000)) {
653            return setParamGeoDataLatitude(latitudex10000);
654        }
655    } else if (key == "param-track-time-status") {
656        int64_t timeDurationUs;
657        if (safe_strtoi64(value.string(), &timeDurationUs)) {
658            return setParamTrackTimeStatus(timeDurationUs);
659        }
660    } else if (key == "audio-param-sampling-rate") {
661        int32_t sampling_rate;
662        if (safe_strtoi32(value.string(), &sampling_rate)) {
663            return setParamAudioSamplingRate(sampling_rate);
664        }
665    } else if (key == "audio-param-number-of-channels") {
666        int32_t number_of_channels;
667        if (safe_strtoi32(value.string(), &number_of_channels)) {
668            return setParamAudioNumberOfChannels(number_of_channels);
669        }
670    } else if (key == "audio-param-encoding-bitrate") {
671        int32_t audio_bitrate;
672        if (safe_strtoi32(value.string(), &audio_bitrate)) {
673            return setParamAudioEncodingBitRate(audio_bitrate);
674        }
675    } else if (key == "audio-param-time-scale") {
676        int32_t timeScale;
677        if (safe_strtoi32(value.string(), &timeScale)) {
678            return setParamAudioTimeScale(timeScale);
679        }
680    } else if (key == "video-param-encoding-bitrate") {
681        int32_t video_bitrate;
682        if (safe_strtoi32(value.string(), &video_bitrate)) {
683            return setParamVideoEncodingBitRate(video_bitrate);
684        }
685    } else if (key == "video-param-rotation-angle-degrees") {
686        int32_t degrees;
687        if (safe_strtoi32(value.string(), &degrees)) {
688            return setParamVideoRotation(degrees);
689        }
690    } else if (key == "video-param-i-frames-interval") {
691        int32_t seconds;
692        if (safe_strtoi32(value.string(), &seconds)) {
693            return setParamVideoIFramesInterval(seconds);
694        }
695    } else if (key == "video-param-encoder-profile") {
696        int32_t profile;
697        if (safe_strtoi32(value.string(), &profile)) {
698            return setParamVideoEncoderProfile(profile);
699        }
700    } else if (key == "video-param-encoder-level") {
701        int32_t level;
702        if (safe_strtoi32(value.string(), &level)) {
703            return setParamVideoEncoderLevel(level);
704        }
705    } else if (key == "video-param-camera-id") {
706        int32_t cameraId;
707        if (safe_strtoi32(value.string(), &cameraId)) {
708            return setParamVideoCameraId(cameraId);
709        }
710    } else if (key == "video-param-time-scale") {
711        int32_t timeScale;
712        if (safe_strtoi32(value.string(), &timeScale)) {
713            return setParamVideoTimeScale(timeScale);
714        }
715    } else if (key == "time-lapse-enable") {
716        int32_t captureFpsEnable;
717        if (safe_strtoi32(value.string(), &captureFpsEnable)) {
718            return setParamCaptureFpsEnable(captureFpsEnable);
719        }
720    } else if (key == "time-lapse-fps") {
721        float fps;
722        if (safe_strtof(value.string(), &fps)) {
723            return setParamCaptureFps(fps);
724        }
725    } else {
726        ALOGE("setParameter: failed to find key %s", key.string());
727    }
728    return BAD_VALUE;
729}
730
731status_t StagefrightRecorder::setParameters(const String8 &params) {
732    ALOGV("setParameters: %s", params.string());
733    const char *cparams = params.string();
734    const char *key_start = cparams;
735    for (;;) {
736        const char *equal_pos = strchr(key_start, '=');
737        if (equal_pos == NULL) {
738            ALOGE("Parameters %s miss a value", cparams);
739            return BAD_VALUE;
740        }
741        String8 key(key_start, equal_pos - key_start);
742        TrimString(&key);
743        if (key.length() == 0) {
744            ALOGE("Parameters %s contains an empty key", cparams);
745            return BAD_VALUE;
746        }
747        const char *value_start = equal_pos + 1;
748        const char *semicolon_pos = strchr(value_start, ';');
749        String8 value;
750        if (semicolon_pos == NULL) {
751            value.setTo(value_start);
752        } else {
753            value.setTo(value_start, semicolon_pos - value_start);
754        }
755        if (setParameter(key, value) != OK) {
756            return BAD_VALUE;
757        }
758        if (semicolon_pos == NULL) {
759            break;  // Reaches the end
760        }
761        key_start = semicolon_pos + 1;
762    }
763    return OK;
764}
765
766status_t StagefrightRecorder::setListener(const sp<IMediaRecorderClient> &listener) {
767    mListener = listener;
768
769    return OK;
770}
771
772status_t StagefrightRecorder::setClientName(const String16& clientName) {
773    mClientName = clientName;
774
775    return OK;
776}
777
778status_t StagefrightRecorder::prepareInternal() {
779    ALOGV("prepare");
780    if (mOutputFd < 0) {
781        ALOGE("Output file descriptor is invalid");
782        return INVALID_OPERATION;
783    }
784
785    // Get UID and PID here for permission checking
786    mClientUid = IPCThreadState::self()->getCallingUid();
787    mClientPid = IPCThreadState::self()->getCallingPid();
788
789    status_t status = OK;
790
791    switch (mOutputFormat) {
792        case OUTPUT_FORMAT_DEFAULT:
793        case OUTPUT_FORMAT_THREE_GPP:
794        case OUTPUT_FORMAT_MPEG_4:
795        case OUTPUT_FORMAT_WEBM:
796            status = setupMPEG4orWEBMRecording();
797            break;
798
799        case OUTPUT_FORMAT_AMR_NB:
800        case OUTPUT_FORMAT_AMR_WB:
801            status = setupAMRRecording();
802            break;
803
804        case OUTPUT_FORMAT_AAC_ADIF:
805        case OUTPUT_FORMAT_AAC_ADTS:
806            status = setupAACRecording();
807            break;
808
809        case OUTPUT_FORMAT_RTP_AVP:
810            status = setupRTPRecording();
811            break;
812
813        case OUTPUT_FORMAT_MPEG2TS:
814            status = setupMPEG2TSRecording();
815            break;
816
817        default:
818            ALOGE("Unsupported output file format: %d", mOutputFormat);
819            status = UNKNOWN_ERROR;
820            break;
821    }
822
823    return status;
824}
825
826status_t StagefrightRecorder::prepare() {
827    if (mVideoSource == VIDEO_SOURCE_SURFACE) {
828        return prepareInternal();
829    }
830    return OK;
831}
832
833status_t StagefrightRecorder::start() {
834    ALOGV("start");
835    if (mOutputFd < 0) {
836        ALOGE("Output file descriptor is invalid");
837        return INVALID_OPERATION;
838    }
839
840    status_t status = OK;
841
842    if (mVideoSource != VIDEO_SOURCE_SURFACE) {
843        status = prepareInternal();
844        if (status != OK) {
845            return status;
846        }
847    }
848
849    if (mWriter == NULL) {
850        ALOGE("File writer is not avaialble");
851        return UNKNOWN_ERROR;
852    }
853
854    switch (mOutputFormat) {
855        case OUTPUT_FORMAT_DEFAULT:
856        case OUTPUT_FORMAT_THREE_GPP:
857        case OUTPUT_FORMAT_MPEG_4:
858        case OUTPUT_FORMAT_WEBM:
859        {
860            bool isMPEG4 = true;
861            if (mOutputFormat == OUTPUT_FORMAT_WEBM) {
862                isMPEG4 = false;
863            }
864            sp<MetaData> meta = new MetaData;
865            setupMPEG4orWEBMMetaData(&meta);
866            status = mWriter->start(meta.get());
867            break;
868        }
869
870        case OUTPUT_FORMAT_AMR_NB:
871        case OUTPUT_FORMAT_AMR_WB:
872        case OUTPUT_FORMAT_AAC_ADIF:
873        case OUTPUT_FORMAT_AAC_ADTS:
874        case OUTPUT_FORMAT_RTP_AVP:
875        case OUTPUT_FORMAT_MPEG2TS:
876        {
877            status = mWriter->start();
878            break;
879        }
880
881        default:
882        {
883            ALOGE("Unsupported output file format: %d", mOutputFormat);
884            status = UNKNOWN_ERROR;
885            break;
886        }
887    }
888
889    if (status != OK) {
890        mWriter.clear();
891        mWriter = NULL;
892    }
893
894    if ((status == OK) && (!mStarted)) {
895        mStarted = true;
896
897        uint32_t params = IMediaPlayerService::kBatteryDataCodecStarted;
898        if (mAudioSource != AUDIO_SOURCE_CNT) {
899            params |= IMediaPlayerService::kBatteryDataTrackAudio;
900        }
901        if (mVideoSource != VIDEO_SOURCE_LIST_END) {
902            params |= IMediaPlayerService::kBatteryDataTrackVideo;
903        }
904
905        addBatteryData(params);
906    }
907
908    return status;
909}
910
911sp<MediaCodecSource> StagefrightRecorder::createAudioSource() {
912    int32_t sourceSampleRate = mSampleRate;
913
914    if (mCaptureFpsEnable && mCaptureFps >= mFrameRate) {
915        // Upscale the sample rate for slow motion recording.
916        // Fail audio source creation if source sample rate is too high, as it could
917        // cause out-of-memory due to large input buffer size. And audio recording
918        // probably doesn't make sense in the scenario, since the slow-down factor
919        // is probably huge (eg. mSampleRate=48K, mCaptureFps=240, mFrameRate=1).
920        const static int32_t SAMPLE_RATE_HZ_MAX = 192000;
921        sourceSampleRate =
922                (mSampleRate * mCaptureFps + mFrameRate / 2) / mFrameRate;
923        if (sourceSampleRate < mSampleRate || sourceSampleRate > SAMPLE_RATE_HZ_MAX) {
924            ALOGE("source sample rate out of range! "
925                    "(mSampleRate %d, mCaptureFps %.2f, mFrameRate %d",
926                    mSampleRate, mCaptureFps, mFrameRate);
927            return NULL;
928        }
929    }
930
931    sp<AudioSource> audioSource =
932        new AudioSource(
933                mAudioSource,
934                mOpPackageName,
935                sourceSampleRate,
936                mAudioChannels,
937                mSampleRate);
938
939    status_t err = audioSource->initCheck();
940
941    if (err != OK) {
942        ALOGE("audio source is not initialized");
943        return NULL;
944    }
945
946    sp<AMessage> format = new AMessage;
947    switch (mAudioEncoder) {
948        case AUDIO_ENCODER_AMR_NB:
949        case AUDIO_ENCODER_DEFAULT:
950            format->setString("mime", MEDIA_MIMETYPE_AUDIO_AMR_NB);
951            break;
952        case AUDIO_ENCODER_AMR_WB:
953            format->setString("mime", MEDIA_MIMETYPE_AUDIO_AMR_WB);
954            break;
955        case AUDIO_ENCODER_AAC:
956            format->setString("mime", MEDIA_MIMETYPE_AUDIO_AAC);
957            format->setInt32("aac-profile", OMX_AUDIO_AACObjectLC);
958            break;
959        case AUDIO_ENCODER_HE_AAC:
960            format->setString("mime", MEDIA_MIMETYPE_AUDIO_AAC);
961            format->setInt32("aac-profile", OMX_AUDIO_AACObjectHE);
962            break;
963        case AUDIO_ENCODER_AAC_ELD:
964            format->setString("mime", MEDIA_MIMETYPE_AUDIO_AAC);
965            format->setInt32("aac-profile", OMX_AUDIO_AACObjectELD);
966            break;
967
968        default:
969            ALOGE("Unknown audio encoder: %d", mAudioEncoder);
970            return NULL;
971    }
972
973    int32_t maxInputSize;
974    CHECK(audioSource->getFormat()->findInt32(
975                kKeyMaxInputSize, &maxInputSize));
976
977    format->setInt32("max-input-size", maxInputSize);
978    format->setInt32("channel-count", mAudioChannels);
979    format->setInt32("sample-rate", mSampleRate);
980    format->setInt32("bitrate", mAudioBitRate);
981    if (mAudioTimeScale > 0) {
982        format->setInt32("time-scale", mAudioTimeScale);
983    }
984    format->setInt32("priority", 0 /* realtime */);
985
986    sp<MediaCodecSource> audioEncoder =
987            MediaCodecSource::Create(mLooper, format, audioSource);
988    mAudioSourceNode = audioSource;
989
990    if (audioEncoder == NULL) {
991        ALOGE("Failed to create audio encoder");
992    }
993
994    return audioEncoder;
995}
996
997status_t StagefrightRecorder::setupAACRecording() {
998    // FIXME:
999    // Add support for OUTPUT_FORMAT_AAC_ADIF
1000    CHECK_EQ(mOutputFormat, OUTPUT_FORMAT_AAC_ADTS);
1001
1002    CHECK(mAudioEncoder == AUDIO_ENCODER_AAC ||
1003          mAudioEncoder == AUDIO_ENCODER_HE_AAC ||
1004          mAudioEncoder == AUDIO_ENCODER_AAC_ELD);
1005    CHECK(mAudioSource != AUDIO_SOURCE_CNT);
1006
1007    mWriter = new AACWriter(mOutputFd);
1008    return setupRawAudioRecording();
1009}
1010
1011status_t StagefrightRecorder::setupAMRRecording() {
1012    CHECK(mOutputFormat == OUTPUT_FORMAT_AMR_NB ||
1013          mOutputFormat == OUTPUT_FORMAT_AMR_WB);
1014
1015    if (mOutputFormat == OUTPUT_FORMAT_AMR_NB) {
1016        if (mAudioEncoder != AUDIO_ENCODER_DEFAULT &&
1017            mAudioEncoder != AUDIO_ENCODER_AMR_NB) {
1018            ALOGE("Invalid encoder %d used for AMRNB recording",
1019                    mAudioEncoder);
1020            return BAD_VALUE;
1021        }
1022    } else {  // mOutputFormat must be OUTPUT_FORMAT_AMR_WB
1023        if (mAudioEncoder != AUDIO_ENCODER_AMR_WB) {
1024            ALOGE("Invlaid encoder %d used for AMRWB recording",
1025                    mAudioEncoder);
1026            return BAD_VALUE;
1027        }
1028    }
1029
1030    mWriter = new AMRWriter(mOutputFd);
1031    return setupRawAudioRecording();
1032}
1033
1034status_t StagefrightRecorder::setupRawAudioRecording() {
1035    if (mAudioSource >= AUDIO_SOURCE_CNT && mAudioSource != AUDIO_SOURCE_FM_TUNER) {
1036        ALOGE("Invalid audio source: %d", mAudioSource);
1037        return BAD_VALUE;
1038    }
1039
1040    status_t status = BAD_VALUE;
1041    if (OK != (status = checkAudioEncoderCapabilities())) {
1042        return status;
1043    }
1044
1045    sp<MediaCodecSource> audioEncoder = createAudioSource();
1046    if (audioEncoder == NULL) {
1047        return UNKNOWN_ERROR;
1048    }
1049
1050    CHECK(mWriter != 0);
1051    mWriter->addSource(audioEncoder);
1052    mAudioEncoderSource = audioEncoder;
1053
1054    if (mMaxFileDurationUs != 0) {
1055        mWriter->setMaxFileDuration(mMaxFileDurationUs);
1056    }
1057    if (mMaxFileSizeBytes != 0) {
1058        mWriter->setMaxFileSize(mMaxFileSizeBytes);
1059    }
1060    mWriter->setListener(mListener);
1061
1062    return OK;
1063}
1064
1065status_t StagefrightRecorder::setupRTPRecording() {
1066    CHECK_EQ(mOutputFormat, OUTPUT_FORMAT_RTP_AVP);
1067
1068    if ((mAudioSource != AUDIO_SOURCE_CNT
1069                && mVideoSource != VIDEO_SOURCE_LIST_END)
1070            || (mAudioSource == AUDIO_SOURCE_CNT
1071                && mVideoSource == VIDEO_SOURCE_LIST_END)) {
1072        // Must have exactly one source.
1073        return BAD_VALUE;
1074    }
1075
1076    if (mOutputFd < 0) {
1077        return BAD_VALUE;
1078    }
1079
1080    sp<MediaCodecSource> source;
1081
1082    if (mAudioSource != AUDIO_SOURCE_CNT) {
1083        source = createAudioSource();
1084        mAudioEncoderSource = source;
1085    } else {
1086        setDefaultVideoEncoderIfNecessary();
1087
1088        sp<MediaSource> mediaSource;
1089        status_t err = setupMediaSource(&mediaSource);
1090        if (err != OK) {
1091            return err;
1092        }
1093
1094        err = setupVideoEncoder(mediaSource, &source);
1095        if (err != OK) {
1096            return err;
1097        }
1098        mVideoEncoderSource = source;
1099    }
1100
1101    mWriter = new ARTPWriter(mOutputFd);
1102    mWriter->addSource(source);
1103    mWriter->setListener(mListener);
1104
1105    return OK;
1106}
1107
1108status_t StagefrightRecorder::setupMPEG2TSRecording() {
1109    CHECK_EQ(mOutputFormat, OUTPUT_FORMAT_MPEG2TS);
1110
1111    sp<MediaWriter> writer = new MPEG2TSWriter(mOutputFd);
1112
1113    if (mAudioSource != AUDIO_SOURCE_CNT) {
1114        if (mAudioEncoder != AUDIO_ENCODER_AAC &&
1115            mAudioEncoder != AUDIO_ENCODER_HE_AAC &&
1116            mAudioEncoder != AUDIO_ENCODER_AAC_ELD) {
1117            return ERROR_UNSUPPORTED;
1118        }
1119
1120        status_t err = setupAudioEncoder(writer);
1121
1122        if (err != OK) {
1123            return err;
1124        }
1125    }
1126
1127    if (mVideoSource < VIDEO_SOURCE_LIST_END) {
1128        if (mVideoEncoder != VIDEO_ENCODER_H264) {
1129            ALOGE("MPEG2TS recording only supports H.264 encoding!");
1130            return ERROR_UNSUPPORTED;
1131        }
1132
1133        sp<MediaSource> mediaSource;
1134        status_t err = setupMediaSource(&mediaSource);
1135        if (err != OK) {
1136            return err;
1137        }
1138
1139        sp<MediaCodecSource> encoder;
1140        err = setupVideoEncoder(mediaSource, &encoder);
1141
1142        if (err != OK) {
1143            return err;
1144        }
1145
1146        writer->addSource(encoder);
1147        mVideoEncoderSource = encoder;
1148    }
1149
1150    if (mMaxFileDurationUs != 0) {
1151        writer->setMaxFileDuration(mMaxFileDurationUs);
1152    }
1153
1154    if (mMaxFileSizeBytes != 0) {
1155        writer->setMaxFileSize(mMaxFileSizeBytes);
1156    }
1157
1158    mWriter = writer;
1159
1160    return OK;
1161}
1162
1163void StagefrightRecorder::clipVideoFrameRate() {
1164    ALOGV("clipVideoFrameRate: encoder %d", mVideoEncoder);
1165    if (mFrameRate == -1) {
1166        mFrameRate = mEncoderProfiles->getCamcorderProfileParamByName(
1167                "vid.fps", mCameraId, CAMCORDER_QUALITY_LOW);
1168        ALOGW("Using default video fps %d", mFrameRate);
1169    }
1170
1171    int minFrameRate = mEncoderProfiles->getVideoEncoderParamByName(
1172                        "enc.vid.fps.min", mVideoEncoder);
1173    int maxFrameRate = mEncoderProfiles->getVideoEncoderParamByName(
1174                        "enc.vid.fps.max", mVideoEncoder);
1175    if (mFrameRate < minFrameRate && minFrameRate != -1) {
1176        ALOGW("Intended video encoding frame rate (%d fps) is too small"
1177             " and will be set to (%d fps)", mFrameRate, minFrameRate);
1178        mFrameRate = minFrameRate;
1179    } else if (mFrameRate > maxFrameRate && maxFrameRate != -1) {
1180        ALOGW("Intended video encoding frame rate (%d fps) is too large"
1181             " and will be set to (%d fps)", mFrameRate, maxFrameRate);
1182        mFrameRate = maxFrameRate;
1183    }
1184}
1185
1186void StagefrightRecorder::clipVideoBitRate() {
1187    ALOGV("clipVideoBitRate: encoder %d", mVideoEncoder);
1188    int minBitRate = mEncoderProfiles->getVideoEncoderParamByName(
1189                        "enc.vid.bps.min", mVideoEncoder);
1190    int maxBitRate = mEncoderProfiles->getVideoEncoderParamByName(
1191                        "enc.vid.bps.max", mVideoEncoder);
1192    if (mVideoBitRate < minBitRate && minBitRate != -1) {
1193        ALOGW("Intended video encoding bit rate (%d bps) is too small"
1194             " and will be set to (%d bps)", mVideoBitRate, minBitRate);
1195        mVideoBitRate = minBitRate;
1196    } else if (mVideoBitRate > maxBitRate && maxBitRate != -1) {
1197        ALOGW("Intended video encoding bit rate (%d bps) is too large"
1198             " and will be set to (%d bps)", mVideoBitRate, maxBitRate);
1199        mVideoBitRate = maxBitRate;
1200    }
1201}
1202
1203void StagefrightRecorder::clipVideoFrameWidth() {
1204    ALOGV("clipVideoFrameWidth: encoder %d", mVideoEncoder);
1205    int minFrameWidth = mEncoderProfiles->getVideoEncoderParamByName(
1206                        "enc.vid.width.min", mVideoEncoder);
1207    int maxFrameWidth = mEncoderProfiles->getVideoEncoderParamByName(
1208                        "enc.vid.width.max", mVideoEncoder);
1209    if (mVideoWidth < minFrameWidth && minFrameWidth != -1) {
1210        ALOGW("Intended video encoding frame width (%d) is too small"
1211             " and will be set to (%d)", mVideoWidth, minFrameWidth);
1212        mVideoWidth = minFrameWidth;
1213    } else if (mVideoWidth > maxFrameWidth && maxFrameWidth != -1) {
1214        ALOGW("Intended video encoding frame width (%d) is too large"
1215             " and will be set to (%d)", mVideoWidth, maxFrameWidth);
1216        mVideoWidth = maxFrameWidth;
1217    }
1218}
1219
1220status_t StagefrightRecorder::checkVideoEncoderCapabilities() {
1221    /* hardware codecs must support camera source meta data mode */
1222    Vector<CodecCapabilities> codecs;
1223    OMXClient client;
1224    CHECK_EQ(client.connect(), (status_t)OK);
1225    QueryCodecs(
1226            client.interface(),
1227            (mVideoEncoder == VIDEO_ENCODER_H263 ? MEDIA_MIMETYPE_VIDEO_H263 :
1228             mVideoEncoder == VIDEO_ENCODER_MPEG_4_SP ? MEDIA_MIMETYPE_VIDEO_MPEG4 :
1229             mVideoEncoder == VIDEO_ENCODER_VP8 ? MEDIA_MIMETYPE_VIDEO_VP8 :
1230             mVideoEncoder == VIDEO_ENCODER_H264 ? MEDIA_MIMETYPE_VIDEO_AVC : ""),
1231            false /* decoder */, true /* hwCodec */, &codecs);
1232
1233    if (!mCaptureFpsEnable) {
1234        // Dont clip for time lapse capture as encoder will have enough
1235        // time to encode because of slow capture rate of time lapse.
1236        clipVideoBitRate();
1237        clipVideoFrameRate();
1238        clipVideoFrameWidth();
1239        clipVideoFrameHeight();
1240        setDefaultProfileIfNecessary();
1241    }
1242    return OK;
1243}
1244
1245// Set to use AVC baseline profile if the encoding parameters matches
1246// CAMCORDER_QUALITY_LOW profile; this is for the sake of MMS service.
1247void StagefrightRecorder::setDefaultProfileIfNecessary() {
1248    ALOGV("setDefaultProfileIfNecessary");
1249
1250    camcorder_quality quality = CAMCORDER_QUALITY_LOW;
1251
1252    int64_t durationUs   = mEncoderProfiles->getCamcorderProfileParamByName(
1253                                "duration", mCameraId, quality) * 1000000LL;
1254
1255    int fileFormat       = mEncoderProfiles->getCamcorderProfileParamByName(
1256                                "file.format", mCameraId, quality);
1257
1258    int videoCodec       = mEncoderProfiles->getCamcorderProfileParamByName(
1259                                "vid.codec", mCameraId, quality);
1260
1261    int videoBitRate     = mEncoderProfiles->getCamcorderProfileParamByName(
1262                                "vid.bps", mCameraId, quality);
1263
1264    int videoFrameRate   = mEncoderProfiles->getCamcorderProfileParamByName(
1265                                "vid.fps", mCameraId, quality);
1266
1267    int videoFrameWidth  = mEncoderProfiles->getCamcorderProfileParamByName(
1268                                "vid.width", mCameraId, quality);
1269
1270    int videoFrameHeight = mEncoderProfiles->getCamcorderProfileParamByName(
1271                                "vid.height", mCameraId, quality);
1272
1273    int audioCodec       = mEncoderProfiles->getCamcorderProfileParamByName(
1274                                "aud.codec", mCameraId, quality);
1275
1276    int audioBitRate     = mEncoderProfiles->getCamcorderProfileParamByName(
1277                                "aud.bps", mCameraId, quality);
1278
1279    int audioSampleRate  = mEncoderProfiles->getCamcorderProfileParamByName(
1280                                "aud.hz", mCameraId, quality);
1281
1282    int audioChannels    = mEncoderProfiles->getCamcorderProfileParamByName(
1283                                "aud.ch", mCameraId, quality);
1284
1285    if (durationUs == mMaxFileDurationUs &&
1286        fileFormat == mOutputFormat &&
1287        videoCodec == mVideoEncoder &&
1288        videoBitRate == mVideoBitRate &&
1289        videoFrameRate == mFrameRate &&
1290        videoFrameWidth == mVideoWidth &&
1291        videoFrameHeight == mVideoHeight &&
1292        audioCodec == mAudioEncoder &&
1293        audioBitRate == mAudioBitRate &&
1294        audioSampleRate == mSampleRate &&
1295        audioChannels == mAudioChannels) {
1296        if (videoCodec == VIDEO_ENCODER_H264) {
1297            ALOGI("Force to use AVC baseline profile");
1298            setParamVideoEncoderProfile(OMX_VIDEO_AVCProfileBaseline);
1299            // set 0 for invalid levels - this will be rejected by the
1300            // codec if it cannot handle it during configure
1301            setParamVideoEncoderLevel(ACodec::getAVCLevelFor(
1302                    videoFrameWidth, videoFrameHeight, videoFrameRate, videoBitRate));
1303        }
1304    }
1305}
1306
1307void StagefrightRecorder::setDefaultVideoEncoderIfNecessary() {
1308    if (mVideoEncoder == VIDEO_ENCODER_DEFAULT) {
1309        if (mOutputFormat == OUTPUT_FORMAT_WEBM) {
1310            // default to VP8 for WEBM recording
1311            mVideoEncoder = VIDEO_ENCODER_VP8;
1312        } else {
1313            // pick the default encoder for CAMCORDER_QUALITY_LOW
1314            int videoCodec = mEncoderProfiles->getCamcorderProfileParamByName(
1315                    "vid.codec", mCameraId, CAMCORDER_QUALITY_LOW);
1316
1317            if (videoCodec > VIDEO_ENCODER_DEFAULT &&
1318                videoCodec < VIDEO_ENCODER_LIST_END) {
1319                mVideoEncoder = (video_encoder)videoCodec;
1320            } else {
1321                // default to H.264 if camcorder profile not available
1322                mVideoEncoder = VIDEO_ENCODER_H264;
1323            }
1324        }
1325    }
1326}
1327
1328status_t StagefrightRecorder::checkAudioEncoderCapabilities() {
1329    clipAudioBitRate();
1330    clipAudioSampleRate();
1331    clipNumberOfAudioChannels();
1332    return OK;
1333}
1334
1335void StagefrightRecorder::clipAudioBitRate() {
1336    ALOGV("clipAudioBitRate: encoder %d", mAudioEncoder);
1337
1338    int minAudioBitRate =
1339            mEncoderProfiles->getAudioEncoderParamByName(
1340                "enc.aud.bps.min", mAudioEncoder);
1341    if (minAudioBitRate != -1 && mAudioBitRate < minAudioBitRate) {
1342        ALOGW("Intended audio encoding bit rate (%d) is too small"
1343            " and will be set to (%d)", mAudioBitRate, minAudioBitRate);
1344        mAudioBitRate = minAudioBitRate;
1345    }
1346
1347    int maxAudioBitRate =
1348            mEncoderProfiles->getAudioEncoderParamByName(
1349                "enc.aud.bps.max", mAudioEncoder);
1350    if (maxAudioBitRate != -1 && mAudioBitRate > maxAudioBitRate) {
1351        ALOGW("Intended audio encoding bit rate (%d) is too large"
1352            " and will be set to (%d)", mAudioBitRate, maxAudioBitRate);
1353        mAudioBitRate = maxAudioBitRate;
1354    }
1355}
1356
1357void StagefrightRecorder::clipAudioSampleRate() {
1358    ALOGV("clipAudioSampleRate: encoder %d", mAudioEncoder);
1359
1360    int minSampleRate =
1361            mEncoderProfiles->getAudioEncoderParamByName(
1362                "enc.aud.hz.min", mAudioEncoder);
1363    if (minSampleRate != -1 && mSampleRate < minSampleRate) {
1364        ALOGW("Intended audio sample rate (%d) is too small"
1365            " and will be set to (%d)", mSampleRate, minSampleRate);
1366        mSampleRate = minSampleRate;
1367    }
1368
1369    int maxSampleRate =
1370            mEncoderProfiles->getAudioEncoderParamByName(
1371                "enc.aud.hz.max", mAudioEncoder);
1372    if (maxSampleRate != -1 && mSampleRate > maxSampleRate) {
1373        ALOGW("Intended audio sample rate (%d) is too large"
1374            " and will be set to (%d)", mSampleRate, maxSampleRate);
1375        mSampleRate = maxSampleRate;
1376    }
1377}
1378
1379void StagefrightRecorder::clipNumberOfAudioChannels() {
1380    ALOGV("clipNumberOfAudioChannels: encoder %d", mAudioEncoder);
1381
1382    int minChannels =
1383            mEncoderProfiles->getAudioEncoderParamByName(
1384                "enc.aud.ch.min", mAudioEncoder);
1385    if (minChannels != -1 && mAudioChannels < minChannels) {
1386        ALOGW("Intended number of audio channels (%d) is too small"
1387            " and will be set to (%d)", mAudioChannels, minChannels);
1388        mAudioChannels = minChannels;
1389    }
1390
1391    int maxChannels =
1392            mEncoderProfiles->getAudioEncoderParamByName(
1393                "enc.aud.ch.max", mAudioEncoder);
1394    if (maxChannels != -1 && mAudioChannels > maxChannels) {
1395        ALOGW("Intended number of audio channels (%d) is too large"
1396            " and will be set to (%d)", mAudioChannels, maxChannels);
1397        mAudioChannels = maxChannels;
1398    }
1399}
1400
1401void StagefrightRecorder::clipVideoFrameHeight() {
1402    ALOGV("clipVideoFrameHeight: encoder %d", mVideoEncoder);
1403    int minFrameHeight = mEncoderProfiles->getVideoEncoderParamByName(
1404                        "enc.vid.height.min", mVideoEncoder);
1405    int maxFrameHeight = mEncoderProfiles->getVideoEncoderParamByName(
1406                        "enc.vid.height.max", mVideoEncoder);
1407    if (minFrameHeight != -1 && mVideoHeight < minFrameHeight) {
1408        ALOGW("Intended video encoding frame height (%d) is too small"
1409             " and will be set to (%d)", mVideoHeight, minFrameHeight);
1410        mVideoHeight = minFrameHeight;
1411    } else if (maxFrameHeight != -1 && mVideoHeight > maxFrameHeight) {
1412        ALOGW("Intended video encoding frame height (%d) is too large"
1413             " and will be set to (%d)", mVideoHeight, maxFrameHeight);
1414        mVideoHeight = maxFrameHeight;
1415    }
1416}
1417
1418// Set up the appropriate MediaSource depending on the chosen option
1419status_t StagefrightRecorder::setupMediaSource(
1420                      sp<MediaSource> *mediaSource) {
1421    if (mVideoSource == VIDEO_SOURCE_DEFAULT
1422            || mVideoSource == VIDEO_SOURCE_CAMERA) {
1423        sp<CameraSource> cameraSource;
1424        status_t err = setupCameraSource(&cameraSource);
1425        if (err != OK) {
1426            return err;
1427        }
1428        *mediaSource = cameraSource;
1429    } else if (mVideoSource == VIDEO_SOURCE_SURFACE) {
1430        *mediaSource = NULL;
1431    } else {
1432        return INVALID_OPERATION;
1433    }
1434    return OK;
1435}
1436
1437status_t StagefrightRecorder::setupCameraSource(
1438        sp<CameraSource> *cameraSource) {
1439    status_t err = OK;
1440    if ((err = checkVideoEncoderCapabilities()) != OK) {
1441        return err;
1442    }
1443    Size videoSize;
1444    videoSize.width = mVideoWidth;
1445    videoSize.height = mVideoHeight;
1446    if (mCaptureFpsEnable) {
1447        if (mTimeBetweenCaptureUs < 0) {
1448            ALOGE("Invalid mTimeBetweenTimeLapseFrameCaptureUs value: %lld",
1449                mTimeBetweenCaptureUs);
1450            return BAD_VALUE;
1451        }
1452
1453        mCameraSourceTimeLapse = CameraSourceTimeLapse::CreateFromCamera(
1454                mCamera, mCameraProxy, mCameraId, mClientName, mClientUid, mClientPid,
1455                videoSize, mFrameRate, mPreviewSurface,
1456                mTimeBetweenCaptureUs);
1457        *cameraSource = mCameraSourceTimeLapse;
1458    } else {
1459        *cameraSource = CameraSource::CreateFromCamera(
1460                mCamera, mCameraProxy, mCameraId, mClientName, mClientUid, mClientPid,
1461                videoSize, mFrameRate,
1462                mPreviewSurface);
1463    }
1464    mCamera.clear();
1465    mCameraProxy.clear();
1466    if (*cameraSource == NULL) {
1467        return UNKNOWN_ERROR;
1468    }
1469
1470    if ((*cameraSource)->initCheck() != OK) {
1471        (*cameraSource).clear();
1472        *cameraSource = NULL;
1473        return NO_INIT;
1474    }
1475
1476    // When frame rate is not set, the actual frame rate will be set to
1477    // the current frame rate being used.
1478    if (mFrameRate == -1) {
1479        int32_t frameRate = 0;
1480        CHECK ((*cameraSource)->getFormat()->findInt32(
1481                    kKeyFrameRate, &frameRate));
1482        ALOGI("Frame rate is not explicitly set. Use the current frame "
1483             "rate (%d fps)", frameRate);
1484        mFrameRate = frameRate;
1485    }
1486
1487    CHECK(mFrameRate != -1);
1488
1489    mIsMetaDataStoredInVideoBuffers =
1490        (*cameraSource)->isMetaDataStoredInVideoBuffers();
1491
1492    return OK;
1493}
1494
1495status_t StagefrightRecorder::setupVideoEncoder(
1496        sp<MediaSource> cameraSource,
1497        sp<MediaCodecSource> *source) {
1498    source->clear();
1499
1500    sp<AMessage> format = new AMessage();
1501
1502    switch (mVideoEncoder) {
1503        case VIDEO_ENCODER_H263:
1504            format->setString("mime", MEDIA_MIMETYPE_VIDEO_H263);
1505            break;
1506
1507        case VIDEO_ENCODER_MPEG_4_SP:
1508            format->setString("mime", MEDIA_MIMETYPE_VIDEO_MPEG4);
1509            break;
1510
1511        case VIDEO_ENCODER_H264:
1512            format->setString("mime", MEDIA_MIMETYPE_VIDEO_AVC);
1513            break;
1514
1515        case VIDEO_ENCODER_VP8:
1516            format->setString("mime", MEDIA_MIMETYPE_VIDEO_VP8);
1517            break;
1518
1519        default:
1520            CHECK(!"Should not be here, unsupported video encoding.");
1521            break;
1522    }
1523
1524    if (cameraSource != NULL) {
1525        sp<MetaData> meta = cameraSource->getFormat();
1526
1527        int32_t width, height, stride, sliceHeight, colorFormat;
1528        CHECK(meta->findInt32(kKeyWidth, &width));
1529        CHECK(meta->findInt32(kKeyHeight, &height));
1530        CHECK(meta->findInt32(kKeyStride, &stride));
1531        CHECK(meta->findInt32(kKeySliceHeight, &sliceHeight));
1532        CHECK(meta->findInt32(kKeyColorFormat, &colorFormat));
1533
1534        format->setInt32("width", width);
1535        format->setInt32("height", height);
1536        format->setInt32("stride", stride);
1537        format->setInt32("slice-height", sliceHeight);
1538        format->setInt32("color-format", colorFormat);
1539    } else {
1540        format->setInt32("width", mVideoWidth);
1541        format->setInt32("height", mVideoHeight);
1542        format->setInt32("stride", mVideoWidth);
1543        format->setInt32("slice-height", mVideoHeight);
1544        format->setInt32("color-format", OMX_COLOR_FormatAndroidOpaque);
1545
1546        // set up time lapse/slow motion for surface source
1547        if (mCaptureFpsEnable) {
1548            if (mTimeBetweenCaptureUs <= 0) {
1549                ALOGE("Invalid mTimeBetweenCaptureUs value: %lld",
1550                        mTimeBetweenCaptureUs);
1551                return BAD_VALUE;
1552            }
1553            format->setInt64("time-lapse", mTimeBetweenCaptureUs);
1554        }
1555    }
1556
1557    format->setInt32("bitrate", mVideoBitRate);
1558    format->setInt32("frame-rate", mFrameRate);
1559    format->setInt32("i-frame-interval", mIFramesIntervalSec);
1560
1561    if (mVideoTimeScale > 0) {
1562        format->setInt32("time-scale", mVideoTimeScale);
1563    }
1564    if (mVideoEncoderProfile != -1) {
1565        format->setInt32("profile", mVideoEncoderProfile);
1566    }
1567    if (mVideoEncoderLevel != -1) {
1568        format->setInt32("level", mVideoEncoderLevel);
1569    }
1570
1571    format->setInt32("priority", 0 /* realtime */);
1572    if (mCaptureFpsEnable) {
1573        format->setFloat("operating-rate", mCaptureFps);
1574    }
1575
1576    uint32_t flags = 0;
1577    if (mIsMetaDataStoredInVideoBuffers) {
1578        flags |= MediaCodecSource::FLAG_USE_METADATA_INPUT;
1579    }
1580
1581    if (cameraSource == NULL) {
1582        flags |= MediaCodecSource::FLAG_USE_SURFACE_INPUT;
1583    }
1584
1585    sp<MediaCodecSource> encoder = MediaCodecSource::Create(
1586            mLooper, format, cameraSource, mPersistentSurface, flags);
1587    if (encoder == NULL) {
1588        ALOGE("Failed to create video encoder");
1589        // When the encoder fails to be created, we need
1590        // release the camera source due to the camera's lock
1591        // and unlock mechanism.
1592        if (cameraSource != NULL) {
1593            cameraSource->stop();
1594        }
1595        return UNKNOWN_ERROR;
1596    }
1597
1598    if (cameraSource == NULL) {
1599        mGraphicBufferProducer = encoder->getGraphicBufferProducer();
1600    }
1601
1602    *source = encoder;
1603
1604    return OK;
1605}
1606
1607status_t StagefrightRecorder::setupAudioEncoder(const sp<MediaWriter>& writer) {
1608    status_t status = BAD_VALUE;
1609    if (OK != (status = checkAudioEncoderCapabilities())) {
1610        return status;
1611    }
1612
1613    switch(mAudioEncoder) {
1614        case AUDIO_ENCODER_AMR_NB:
1615        case AUDIO_ENCODER_AMR_WB:
1616        case AUDIO_ENCODER_AAC:
1617        case AUDIO_ENCODER_HE_AAC:
1618        case AUDIO_ENCODER_AAC_ELD:
1619            break;
1620
1621        default:
1622            ALOGE("Unsupported audio encoder: %d", mAudioEncoder);
1623            return UNKNOWN_ERROR;
1624    }
1625
1626    sp<MediaCodecSource> audioEncoder = createAudioSource();
1627    if (audioEncoder == NULL) {
1628        return UNKNOWN_ERROR;
1629    }
1630
1631    writer->addSource(audioEncoder);
1632    mAudioEncoderSource = audioEncoder;
1633    return OK;
1634}
1635
1636status_t StagefrightRecorder::setupMPEG4orWEBMRecording() {
1637    mWriter.clear();
1638    mTotalBitRate = 0;
1639
1640    status_t err = OK;
1641    sp<MediaWriter> writer;
1642    sp<MPEG4Writer> mp4writer;
1643    if (mOutputFormat == OUTPUT_FORMAT_WEBM) {
1644        writer = new WebmWriter(mOutputFd);
1645    } else {
1646        writer = mp4writer = new MPEG4Writer(mOutputFd);
1647    }
1648
1649    if (mVideoSource < VIDEO_SOURCE_LIST_END) {
1650        setDefaultVideoEncoderIfNecessary();
1651
1652        sp<MediaSource> mediaSource;
1653        err = setupMediaSource(&mediaSource);
1654        if (err != OK) {
1655            return err;
1656        }
1657
1658        sp<MediaCodecSource> encoder;
1659        err = setupVideoEncoder(mediaSource, &encoder);
1660        if (err != OK) {
1661            return err;
1662        }
1663
1664        writer->addSource(encoder);
1665        mVideoEncoderSource = encoder;
1666        mTotalBitRate += mVideoBitRate;
1667    }
1668
1669    if (mOutputFormat != OUTPUT_FORMAT_WEBM) {
1670        // Audio source is added at the end if it exists.
1671        // This help make sure that the "recoding" sound is suppressed for
1672        // camcorder applications in the recorded files.
1673        // TODO Audio source is currently unsupported for webm output; vorbis encoder needed.
1674        // disable audio for time lapse recording
1675        bool disableAudio = mCaptureFpsEnable && mCaptureFps < mFrameRate;
1676        if (!disableAudio && mAudioSource != AUDIO_SOURCE_CNT) {
1677            err = setupAudioEncoder(writer);
1678            if (err != OK) return err;
1679            mTotalBitRate += mAudioBitRate;
1680        }
1681
1682        if (mCaptureFpsEnable) {
1683            mp4writer->setCaptureRate(mCaptureFps);
1684        }
1685
1686        if (mInterleaveDurationUs > 0) {
1687            mp4writer->setInterleaveDuration(mInterleaveDurationUs);
1688        }
1689        if (mLongitudex10000 > -3600000 && mLatitudex10000 > -3600000) {
1690            mp4writer->setGeoData(mLatitudex10000, mLongitudex10000);
1691        }
1692    }
1693    if (mMaxFileDurationUs != 0) {
1694        writer->setMaxFileDuration(mMaxFileDurationUs);
1695    }
1696    if (mMaxFileSizeBytes != 0) {
1697        writer->setMaxFileSize(mMaxFileSizeBytes);
1698    }
1699    if (mVideoSource == VIDEO_SOURCE_DEFAULT
1700            || mVideoSource == VIDEO_SOURCE_CAMERA) {
1701        mStartTimeOffsetMs = mEncoderProfiles->getStartTimeOffsetMs(mCameraId);
1702    } else if (mVideoSource == VIDEO_SOURCE_SURFACE) {
1703        // surface source doesn't need large initial delay
1704        mStartTimeOffsetMs = 200;
1705    }
1706    if (mStartTimeOffsetMs > 0) {
1707        writer->setStartTimeOffsetMs(mStartTimeOffsetMs);
1708    }
1709
1710    writer->setListener(mListener);
1711    mWriter = writer;
1712    return OK;
1713}
1714
1715void StagefrightRecorder::setupMPEG4orWEBMMetaData(sp<MetaData> *meta) {
1716    int64_t startTimeUs = systemTime() / 1000;
1717    (*meta)->setInt64(kKeyTime, startTimeUs);
1718    (*meta)->setInt32(kKeyFileType, mOutputFormat);
1719    (*meta)->setInt32(kKeyBitRate, mTotalBitRate);
1720    if (mMovieTimeScale > 0) {
1721        (*meta)->setInt32(kKeyTimeScale, mMovieTimeScale);
1722    }
1723    if (mOutputFormat != OUTPUT_FORMAT_WEBM) {
1724        (*meta)->setInt32(kKey64BitFileOffset, mUse64BitFileOffset);
1725        if (mTrackEveryTimeDurationUs > 0) {
1726            (*meta)->setInt64(kKeyTrackTimeStatus, mTrackEveryTimeDurationUs);
1727        }
1728        if (mRotationDegrees != 0) {
1729            (*meta)->setInt32(kKeyRotation, mRotationDegrees);
1730        }
1731    }
1732}
1733
1734status_t StagefrightRecorder::pause() {
1735    ALOGV("pause");
1736    if (!mStarted) {
1737        return INVALID_OPERATION;
1738    }
1739
1740    // Already paused --- no-op.
1741    if (mPauseStartTimeUs != 0) {
1742        return OK;
1743    }
1744
1745    if (mAudioEncoderSource != NULL) {
1746        mAudioEncoderSource->pause();
1747    }
1748    if (mVideoEncoderSource != NULL) {
1749        mVideoEncoderSource->pause();
1750    }
1751
1752    mPauseStartTimeUs = systemTime() / 1000;
1753
1754    return OK;
1755}
1756
1757status_t StagefrightRecorder::resume() {
1758    ALOGV("resume");
1759    if (!mStarted) {
1760        return INVALID_OPERATION;
1761    }
1762
1763    // Not paused --- no-op.
1764    if (mPauseStartTimeUs == 0) {
1765        return OK;
1766    }
1767
1768    // 30 ms buffer to avoid timestamp overlap
1769    mTotalPausedDurationUs += (systemTime() / 1000) - mPauseStartTimeUs - 30000;
1770    if (mAudioEncoderSource != NULL) {
1771        mAudioEncoderSource->setInputBufferTimeOffset(-mTotalPausedDurationUs);
1772        mAudioEncoderSource->start();
1773    }
1774    if (mVideoEncoderSource != NULL) {
1775        mVideoEncoderSource->setInputBufferTimeOffset(-mTotalPausedDurationUs);
1776        mVideoEncoderSource->start();
1777    }
1778    mPauseStartTimeUs = 0;
1779
1780    return OK;
1781}
1782
1783status_t StagefrightRecorder::stop() {
1784    ALOGV("stop");
1785    status_t err = OK;
1786
1787    if (mCaptureFpsEnable && mCameraSourceTimeLapse != NULL) {
1788        mCameraSourceTimeLapse->startQuickReadReturns();
1789        mCameraSourceTimeLapse = NULL;
1790    }
1791
1792    if (mWriter != NULL) {
1793        err = mWriter->stop();
1794        mWriter.clear();
1795    }
1796
1797    mGraphicBufferProducer.clear();
1798    mPersistentSurface.clear();
1799    mAudioEncoderSource.clear();
1800    mVideoEncoderSource.clear();
1801
1802    if (mOutputFd >= 0) {
1803        ::close(mOutputFd);
1804        mOutputFd = -1;
1805    }
1806
1807    if (mStarted) {
1808        mStarted = false;
1809
1810        uint32_t params = 0;
1811        if (mAudioSource != AUDIO_SOURCE_CNT) {
1812            params |= IMediaPlayerService::kBatteryDataTrackAudio;
1813        }
1814        if (mVideoSource != VIDEO_SOURCE_LIST_END) {
1815            params |= IMediaPlayerService::kBatteryDataTrackVideo;
1816        }
1817
1818        addBatteryData(params);
1819    }
1820
1821    return err;
1822}
1823
1824status_t StagefrightRecorder::close() {
1825    ALOGV("close");
1826    stop();
1827
1828    return OK;
1829}
1830
1831status_t StagefrightRecorder::reset() {
1832    ALOGV("reset");
1833    stop();
1834
1835    // No audio or video source by default
1836    mAudioSource = AUDIO_SOURCE_CNT;
1837    mVideoSource = VIDEO_SOURCE_LIST_END;
1838
1839    // Default parameters
1840    mOutputFormat  = OUTPUT_FORMAT_THREE_GPP;
1841    mAudioEncoder  = AUDIO_ENCODER_AMR_NB;
1842    mVideoEncoder  = VIDEO_ENCODER_DEFAULT;
1843    mVideoWidth    = 176;
1844    mVideoHeight   = 144;
1845    mFrameRate     = -1;
1846    mVideoBitRate  = 192000;
1847    mSampleRate    = 8000;
1848    mAudioChannels = 1;
1849    mAudioBitRate  = 12200;
1850    mInterleaveDurationUs = 0;
1851    mIFramesIntervalSec = 1;
1852    mAudioSourceNode = 0;
1853    mUse64BitFileOffset = false;
1854    mMovieTimeScale  = -1;
1855    mAudioTimeScale  = -1;
1856    mVideoTimeScale  = -1;
1857    mCameraId        = 0;
1858    mStartTimeOffsetMs = -1;
1859    mVideoEncoderProfile = -1;
1860    mVideoEncoderLevel   = -1;
1861    mMaxFileDurationUs = 0;
1862    mMaxFileSizeBytes = 0;
1863    mTrackEveryTimeDurationUs = 0;
1864    mCaptureFpsEnable = false;
1865    mCaptureFps = 0.0f;
1866    mTimeBetweenCaptureUs = -1;
1867    mCameraSourceTimeLapse = NULL;
1868    mIsMetaDataStoredInVideoBuffers = false;
1869    mEncoderProfiles = MediaProfiles::getInstance();
1870    mRotationDegrees = 0;
1871    mLatitudex10000 = -3600000;
1872    mLongitudex10000 = -3600000;
1873    mTotalBitRate = 0;
1874
1875    mOutputFd = -1;
1876    mPauseStartTimeUs = 0;
1877    mTotalPausedDurationUs = 0;
1878
1879    return OK;
1880}
1881
1882status_t StagefrightRecorder::getMaxAmplitude(int *max) {
1883    ALOGV("getMaxAmplitude");
1884
1885    if (max == NULL) {
1886        ALOGE("Null pointer argument");
1887        return BAD_VALUE;
1888    }
1889
1890    if (mAudioSourceNode != 0) {
1891        *max = mAudioSourceNode->getMaxAmplitude();
1892    } else {
1893        *max = 0;
1894    }
1895
1896    return OK;
1897}
1898
1899status_t StagefrightRecorder::dump(
1900        int fd, const Vector<String16>& args) const {
1901    ALOGV("dump");
1902    const size_t SIZE = 256;
1903    char buffer[SIZE];
1904    String8 result;
1905    if (mWriter != 0) {
1906        mWriter->dump(fd, args);
1907    } else {
1908        snprintf(buffer, SIZE, "   No file writer\n");
1909        result.append(buffer);
1910    }
1911    snprintf(buffer, SIZE, "   Recorder: %p\n", this);
1912    snprintf(buffer, SIZE, "   Output file (fd %d):\n", mOutputFd);
1913    result.append(buffer);
1914    snprintf(buffer, SIZE, "     File format: %d\n", mOutputFormat);
1915    result.append(buffer);
1916    snprintf(buffer, SIZE, "     Max file size (bytes): %" PRId64 "\n", mMaxFileSizeBytes);
1917    result.append(buffer);
1918    snprintf(buffer, SIZE, "     Max file duration (us): %" PRId64 "\n", mMaxFileDurationUs);
1919    result.append(buffer);
1920    snprintf(buffer, SIZE, "     File offset length (bits): %d\n", mUse64BitFileOffset? 64: 32);
1921    result.append(buffer);
1922    snprintf(buffer, SIZE, "     Interleave duration (us): %d\n", mInterleaveDurationUs);
1923    result.append(buffer);
1924    snprintf(buffer, SIZE, "     Progress notification: %" PRId64 " us\n", mTrackEveryTimeDurationUs);
1925    result.append(buffer);
1926    snprintf(buffer, SIZE, "   Audio\n");
1927    result.append(buffer);
1928    snprintf(buffer, SIZE, "     Source: %d\n", mAudioSource);
1929    result.append(buffer);
1930    snprintf(buffer, SIZE, "     Encoder: %d\n", mAudioEncoder);
1931    result.append(buffer);
1932    snprintf(buffer, SIZE, "     Bit rate (bps): %d\n", mAudioBitRate);
1933    result.append(buffer);
1934    snprintf(buffer, SIZE, "     Sampling rate (hz): %d\n", mSampleRate);
1935    result.append(buffer);
1936    snprintf(buffer, SIZE, "     Number of channels: %d\n", mAudioChannels);
1937    result.append(buffer);
1938    snprintf(buffer, SIZE, "     Max amplitude: %d\n", mAudioSourceNode == 0? 0: mAudioSourceNode->getMaxAmplitude());
1939    result.append(buffer);
1940    snprintf(buffer, SIZE, "   Video\n");
1941    result.append(buffer);
1942    snprintf(buffer, SIZE, "     Source: %d\n", mVideoSource);
1943    result.append(buffer);
1944    snprintf(buffer, SIZE, "     Camera Id: %d\n", mCameraId);
1945    result.append(buffer);
1946    snprintf(buffer, SIZE, "     Start time offset (ms): %d\n", mStartTimeOffsetMs);
1947    result.append(buffer);
1948    snprintf(buffer, SIZE, "     Encoder: %d\n", mVideoEncoder);
1949    result.append(buffer);
1950    snprintf(buffer, SIZE, "     Encoder profile: %d\n", mVideoEncoderProfile);
1951    result.append(buffer);
1952    snprintf(buffer, SIZE, "     Encoder level: %d\n", mVideoEncoderLevel);
1953    result.append(buffer);
1954    snprintf(buffer, SIZE, "     I frames interval (s): %d\n", mIFramesIntervalSec);
1955    result.append(buffer);
1956    snprintf(buffer, SIZE, "     Frame size (pixels): %dx%d\n", mVideoWidth, mVideoHeight);
1957    result.append(buffer);
1958    snprintf(buffer, SIZE, "     Frame rate (fps): %d\n", mFrameRate);
1959    result.append(buffer);
1960    snprintf(buffer, SIZE, "     Bit rate (bps): %d\n", mVideoBitRate);
1961    result.append(buffer);
1962    ::write(fd, result.string(), result.size());
1963    return OK;
1964}
1965}  // namespace android
1966