CameraSource.cpp revision 4ca2c7c913f8bd4ada13aca56d36045d42d1e00f 
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 "CameraSource"
19#include <utils/Log.h>
20
21#include <OMX_Component.h>
22#include <binder/IPCThreadState.h>
23#include <media/stagefright/CameraSource.h>
24#include <media/stagefright/MediaDebug.h>
25#include <media/stagefright/MediaDefs.h>
26#include <media/stagefright/MediaErrors.h>
27#include <media/stagefright/MetaData.h>
28#include <camera/Camera.h>
29#include <camera/CameraParameters.h>
30#include <surfaceflinger/Surface.h>
31#include <utils/String8.h>
32#include <cutils/properties.h>
33
34namespace android {
35
36struct CameraSourceListener : public CameraListener {
37    CameraSourceListener(const sp<CameraSource> &source);
38
39    virtual void notify(int32_t msgType, int32_t ext1, int32_t ext2);
40    virtual void postData(int32_t msgType, const sp<IMemory> &dataPtr);
41
42    virtual void postDataTimestamp(
43            nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr);
44
45protected:
46    virtual ~CameraSourceListener();
47
48private:
49    wp<CameraSource> mSource;
50
51    CameraSourceListener(const CameraSourceListener &);
52    CameraSourceListener &operator=(const CameraSourceListener &);
53};
54
55CameraSourceListener::CameraSourceListener(const sp<CameraSource> &source)
56    : mSource(source) {
57}
58
59CameraSourceListener::~CameraSourceListener() {
60}
61
62void CameraSourceListener::notify(int32_t msgType, int32_t ext1, int32_t ext2) {
63    LOGV("notify(%d, %d, %d)", msgType, ext1, ext2);
64}
65
66void CameraSourceListener::postData(int32_t msgType, const sp<IMemory> &dataPtr) {
67    LOGV("postData(%d, ptr:%p, size:%d)",
68         msgType, dataPtr->pointer(), dataPtr->size());
69
70    sp<CameraSource> source = mSource.promote();
71    if (source.get() != NULL) {
72        source->dataCallback(msgType, dataPtr);
73    }
74}
75
76void CameraSourceListener::postDataTimestamp(
77        nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr) {
78
79    sp<CameraSource> source = mSource.promote();
80    if (source.get() != NULL) {
81        source->dataCallbackTimestamp(timestamp/1000, msgType, dataPtr);
82    }
83}
84
85static int32_t getColorFormat(const char* colorFormat) {
86    if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_YUV420P)) {
87       return OMX_COLOR_FormatYUV420Planar;
88    }
89
90    if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_YUV422SP)) {
91       return OMX_COLOR_FormatYUV422SemiPlanar;
92    }
93
94    if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_YUV420SP)) {
95        return OMX_COLOR_FormatYUV420SemiPlanar;
96    }
97
98    if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_YUV422I)) {
99        return OMX_COLOR_FormatYCbYCr;
100    }
101
102    if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_RGB565)) {
103       return OMX_COLOR_Format16bitRGB565;
104    }
105
106    LOGE("Uknown color format (%s), please add it to "
107         "CameraSource::getColorFormat", colorFormat);
108
109    CHECK_EQ(0, "Unknown color format");
110}
111
112CameraSource *CameraSource::Create() {
113    Size size;
114    size.width = -1;
115    size.height = -1;
116
117    sp<ICamera> camera;
118    return new CameraSource(camera, NULL, 0, size, -1, NULL, false);
119}
120
121// static
122CameraSource *CameraSource::CreateFromCamera(
123    const sp<ICamera>& camera,
124    const sp<ICameraRecordingProxy>& proxy,
125    int32_t cameraId,
126    Size videoSize,
127    int32_t frameRate,
128    const sp<Surface>& surface,
129    bool storeMetaDataInVideoBuffers) {
130
131    CameraSource *source = new CameraSource(camera, proxy, cameraId,
132                    videoSize, frameRate, surface,
133                    storeMetaDataInVideoBuffers);
134    return source;
135}
136
137CameraSource::CameraSource(
138    const sp<ICamera>& camera,
139    const sp<ICameraRecordingProxy>& proxy,
140    int32_t cameraId,
141    Size videoSize,
142    int32_t frameRate,
143    const sp<Surface>& surface,
144    bool storeMetaDataInVideoBuffers)
145    : mCameraFlags(0),
146      mVideoFrameRate(-1),
147      mCamera(0),
148      mSurface(surface),
149      mNumFramesReceived(0),
150      mLastFrameTimestampUs(0),
151      mStarted(false),
152      mNumFramesEncoded(0),
153      mFirstFrameTimeUs(0),
154      mNumFramesDropped(0),
155      mNumGlitches(0),
156      mGlitchDurationThresholdUs(200000),
157      mCollectStats(false) {
158    mVideoSize.width  = -1;
159    mVideoSize.height = -1;
160
161    mInitCheck = init(camera, proxy, cameraId,
162                    videoSize, frameRate,
163                    storeMetaDataInVideoBuffers);
164}
165
166status_t CameraSource::initCheck() const {
167    return mInitCheck;
168}
169
170status_t CameraSource::isCameraAvailable(
171    const sp<ICamera>& camera, const sp<ICameraRecordingProxy>& proxy,
172    int32_t cameraId) {
173
174    if (camera == 0) {
175        mCamera = Camera::connect(cameraId);
176        if (mCamera == 0) return -EBUSY;
177        // If proxy is not passed in by applications, still use the proxy of
178        // our own Camera to simplify the code.
179        mCameraRecordingProxy = mCamera->getRecordingProxy();
180        mCameraFlags &= ~FLAGS_HOT_CAMERA;
181    } else {
182        // We get the proxy from Camera, not ICamera. We need to get the proxy
183        // to the remote Camera owned by the application. Here mCamera is a
184        // local Camera object created by us. We cannot use the proxy from
185        // mCamera here.
186        mCamera = Camera::create(camera);
187        if (mCamera == 0) return -EBUSY;
188        mCameraRecordingProxy = proxy;
189        mCameraFlags |= FLAGS_HOT_CAMERA;
190    }
191
192    mCamera->lock();
193    mDeathNotifier = new DeathNotifier();
194    // isBinderAlive needs linkToDeath to work.
195    mCameraRecordingProxy->asBinder()->linkToDeath(mDeathNotifier);
196
197    return OK;
198}
199
200
201/*
202 * Check to see whether the requested video width and height is one
203 * of the supported sizes.
204 * @param width the video frame width in pixels
205 * @param height the video frame height in pixels
206 * @param suppportedSizes the vector of sizes that we check against
207 * @return true if the dimension (width and height) is supported.
208 */
209static bool isVideoSizeSupported(
210    int32_t width, int32_t height,
211    const Vector<Size>& supportedSizes) {
212
213    LOGV("isVideoSizeSupported");
214    for (size_t i = 0; i < supportedSizes.size(); ++i) {
215        if (width  == supportedSizes[i].width &&
216            height == supportedSizes[i].height) {
217            return true;
218        }
219    }
220    return false;
221}
222
223/*
224 * If the preview and video output is separate, we only set the
225 * the video size, and applications should set the preview size
226 * to some proper value, and the recording framework will not
227 * change the preview size; otherwise, if the video and preview
228 * output is the same, we need to set the preview to be the same
229 * as the requested video size.
230 *
231 */
232/*
233 * Query the camera to retrieve the supported video frame sizes
234 * and also to see whether CameraParameters::setVideoSize()
235 * is supported or not.
236 * @param params CameraParameters to retrieve the information
237 * @@param isSetVideoSizeSupported retunrs whether method
238 *      CameraParameters::setVideoSize() is supported or not.
239 * @param sizes returns the vector of Size objects for the
240 *      supported video frame sizes advertised by the camera.
241 */
242static void getSupportedVideoSizes(
243    const CameraParameters& params,
244    bool *isSetVideoSizeSupported,
245    Vector<Size>& sizes) {
246
247    *isSetVideoSizeSupported = true;
248    params.getSupportedVideoSizes(sizes);
249    if (sizes.size() == 0) {
250        LOGD("Camera does not support setVideoSize()");
251        params.getSupportedPreviewSizes(sizes);
252        *isSetVideoSizeSupported = false;
253    }
254}
255
256/*
257 * Check whether the camera has the supported color format
258 * @param params CameraParameters to retrieve the information
259 * @return OK if no error.
260 */
261status_t CameraSource::isCameraColorFormatSupported(
262        const CameraParameters& params) {
263    mColorFormat = getColorFormat(params.get(
264            CameraParameters::KEY_VIDEO_FRAME_FORMAT));
265    if (mColorFormat == -1) {
266        return BAD_VALUE;
267    }
268    return OK;
269}
270
271/*
272 * Configure the camera to use the requested video size
273 * (width and height) and/or frame rate. If both width and
274 * height are -1, configuration on the video size is skipped.
275 * if frameRate is -1, configuration on the frame rate
276 * is skipped. Skipping the configuration allows one to
277 * use the current camera setting without the need to
278 * actually know the specific values (see Create() method).
279 *
280 * @param params the CameraParameters to be configured
281 * @param width the target video frame width in pixels
282 * @param height the target video frame height in pixels
283 * @param frameRate the target frame rate in frames per second.
284 * @return OK if no error.
285 */
286status_t CameraSource::configureCamera(
287        CameraParameters* params,
288        int32_t width, int32_t height,
289        int32_t frameRate) {
290
291    Vector<Size> sizes;
292    bool isSetVideoSizeSupportedByCamera = true;
293    getSupportedVideoSizes(*params, &isSetVideoSizeSupportedByCamera, sizes);
294    bool isCameraParamChanged = false;
295    if (width != -1 && height != -1) {
296        if (!isVideoSizeSupported(width, height, sizes)) {
297            LOGE("Video dimension (%dx%d) is unsupported", width, height);
298            releaseCamera();
299            return BAD_VALUE;
300        }
301        if (isSetVideoSizeSupportedByCamera) {
302            params->setVideoSize(width, height);
303        } else {
304            params->setPreviewSize(width, height);
305        }
306        isCameraParamChanged = true;
307    } else if ((width == -1 && height != -1) ||
308               (width != -1 && height == -1)) {
309        // If one and only one of the width and height is -1
310        // we reject such a request.
311        LOGE("Requested video size (%dx%d) is not supported", width, height);
312        releaseCamera();
313        return BAD_VALUE;
314    } else {  // width == -1 && height == -1
315        // Do not configure the camera.
316        // Use the current width and height value setting from the camera.
317    }
318
319    if (frameRate != -1) {
320        CHECK(frameRate > 0 && frameRate <= 120);
321        const char* supportedFrameRates =
322                params->get(CameraParameters::KEY_SUPPORTED_PREVIEW_FRAME_RATES);
323        CHECK(supportedFrameRates != NULL);
324        LOGV("Supported frame rates: %s", supportedFrameRates);
325        char buf[4];
326        snprintf(buf, 4, "%d", frameRate);
327        if (strstr(supportedFrameRates, buf) == NULL) {
328            LOGE("Requested frame rate (%d) is not supported: %s",
329                frameRate, supportedFrameRates);
330            releaseCamera();
331            return BAD_VALUE;
332        }
333
334        // The frame rate is supported, set the camera to the requested value.
335        params->setPreviewFrameRate(frameRate);
336        isCameraParamChanged = true;
337    } else {  // frameRate == -1
338        // Do not configure the camera.
339        // Use the current frame rate value setting from the camera
340    }
341
342    if (isCameraParamChanged) {
343        // Either frame rate or frame size needs to be changed.
344        String8 s = params->flatten();
345        if (OK != mCamera->setParameters(s)) {
346            LOGE("Could not change settings."
347                 " Someone else is using camera %p?", mCamera.get());
348            return -EBUSY;
349        }
350    }
351    return OK;
352}
353
354/*
355 * Check whether the requested video frame size
356 * has been successfully configured or not. If both width and height
357 * are -1, check on the current width and height value setting
358 * is performed.
359 *
360 * @param params CameraParameters to retrieve the information
361 * @param the target video frame width in pixels to check against
362 * @param the target video frame height in pixels to check against
363 * @return OK if no error
364 */
365status_t CameraSource::checkVideoSize(
366        const CameraParameters& params,
367        int32_t width, int32_t height) {
368
369    // The actual video size is the same as the preview size
370    // if the camera hal does not support separate video and
371    // preview output. In this case, we retrieve the video
372    // size from preview.
373    int32_t frameWidthActual = -1;
374    int32_t frameHeightActual = -1;
375    Vector<Size> sizes;
376    params.getSupportedVideoSizes(sizes);
377    if (sizes.size() == 0) {
378        // video size is the same as preview size
379        params.getPreviewSize(&frameWidthActual, &frameHeightActual);
380    } else {
381        // video size may not be the same as preview
382        params.getVideoSize(&frameWidthActual, &frameHeightActual);
383    }
384    if (frameWidthActual < 0 || frameHeightActual < 0) {
385        LOGE("Failed to retrieve video frame size (%dx%d)",
386                frameWidthActual, frameHeightActual);
387        return UNKNOWN_ERROR;
388    }
389
390    // Check the actual video frame size against the target/requested
391    // video frame size.
392    if (width != -1 && height != -1) {
393        if (frameWidthActual != width || frameHeightActual != height) {
394            LOGE("Failed to set video frame size to %dx%d. "
395                    "The actual video size is %dx%d ", width, height,
396                    frameWidthActual, frameHeightActual);
397            return UNKNOWN_ERROR;
398        }
399    }
400
401    // Good now.
402    mVideoSize.width = frameWidthActual;
403    mVideoSize.height = frameHeightActual;
404    return OK;
405}
406
407/*
408 * Check the requested frame rate has been successfully configured or not.
409 * If the target frameRate is -1, check on the current frame rate value
410 * setting is performed.
411 *
412 * @param params CameraParameters to retrieve the information
413 * @param the target video frame rate to check against
414 * @return OK if no error.
415 */
416status_t CameraSource::checkFrameRate(
417        const CameraParameters& params,
418        int32_t frameRate) {
419
420    int32_t frameRateActual = params.getPreviewFrameRate();
421    if (frameRateActual < 0) {
422        LOGE("Failed to retrieve preview frame rate (%d)", frameRateActual);
423        return UNKNOWN_ERROR;
424    }
425
426    // Check the actual video frame rate against the target/requested
427    // video frame rate.
428    if (frameRate != -1 && (frameRateActual - frameRate) != 0) {
429        LOGE("Failed to set preview frame rate to %d fps. The actual "
430                "frame rate is %d", frameRate, frameRateActual);
431        return UNKNOWN_ERROR;
432    }
433
434    // Good now.
435    mVideoFrameRate = frameRateActual;
436    return OK;
437}
438
439/*
440 * Initialize the CameraSource to so that it becomes
441 * ready for providing the video input streams as requested.
442 * @param camera the camera object used for the video source
443 * @param cameraId if camera == 0, use camera with this id
444 *      as the video source
445 * @param videoSize the target video frame size. If both
446 *      width and height in videoSize is -1, use the current
447 *      width and heigth settings by the camera
448 * @param frameRate the target frame rate in frames per second.
449 *      if it is -1, use the current camera frame rate setting.
450 * @param storeMetaDataInVideoBuffers request to store meta
451 *      data or real YUV data in video buffers. Request to
452 *      store meta data in video buffers may not be honored
453 *      if the source does not support this feature.
454 *
455 * @return OK if no error.
456 */
457status_t CameraSource::init(
458        const sp<ICamera>& camera,
459        const sp<ICameraRecordingProxy>& proxy,
460        int32_t cameraId,
461        Size videoSize,
462        int32_t frameRate,
463        bool storeMetaDataInVideoBuffers) {
464
465    status_t err = OK;
466    int64_t token = IPCThreadState::self()->clearCallingIdentity();
467
468    if ((err = isCameraAvailable(camera, proxy, cameraId)) != OK) {
469        LOGE("Camera connection could not be established.");
470        return err;
471    }
472    CameraParameters params(mCamera->getParameters());
473    if ((err = isCameraColorFormatSupported(params)) != OK) {
474        return err;
475    }
476
477    // Set the camera to use the requested video frame size
478    // and/or frame rate.
479    if ((err = configureCamera(&params,
480                    videoSize.width, videoSize.height,
481                    frameRate))) {
482        return err;
483    }
484
485    // Check on video frame size and frame rate.
486    CameraParameters newCameraParams(mCamera->getParameters());
487    if ((err = checkVideoSize(newCameraParams,
488                videoSize.width, videoSize.height)) != OK) {
489        return err;
490    }
491    if ((err = checkFrameRate(newCameraParams, frameRate)) != OK) {
492        return err;
493    }
494
495    // This CHECK is good, since we just passed the lock/unlock
496    // check earlier by calling mCamera->setParameters().
497    CHECK_EQ(OK, mCamera->setPreviewDisplay(mSurface));
498
499    // By default, do not store metadata in video buffers
500    mIsMetaDataStoredInVideoBuffers = false;
501    mCamera->storeMetaDataInBuffers(false);
502    if (storeMetaDataInVideoBuffers) {
503        if (OK == mCamera->storeMetaDataInBuffers(true)) {
504            mIsMetaDataStoredInVideoBuffers = true;
505        }
506    }
507
508    IPCThreadState::self()->restoreCallingIdentity(token);
509
510    int64_t glitchDurationUs = (1000000LL / mVideoFrameRate);
511    if (glitchDurationUs > mGlitchDurationThresholdUs) {
512        mGlitchDurationThresholdUs = glitchDurationUs;
513    }
514
515    // XXX: query camera for the stride and slice height
516    // when the capability becomes available.
517    mMeta = new MetaData;
518    mMeta->setCString(kKeyMIMEType,  MEDIA_MIMETYPE_VIDEO_RAW);
519    mMeta->setInt32(kKeyColorFormat, mColorFormat);
520    mMeta->setInt32(kKeyWidth,       mVideoSize.width);
521    mMeta->setInt32(kKeyHeight,      mVideoSize.height);
522    mMeta->setInt32(kKeyStride,      mVideoSize.width);
523    mMeta->setInt32(kKeySliceHeight, mVideoSize.height);
524    mMeta->setInt32(kKeyFrameRate,   mVideoFrameRate);
525    return OK;
526}
527
528CameraSource::~CameraSource() {
529    if (mStarted) {
530        stop();
531    }
532}
533
534void CameraSource::startCameraRecording() {
535    // Reset the identity to the current thread because media server owns the
536    // camera and recording is started by the applications. The applications
537    // will connect to the camera in ICameraRecordingProxy::startRecording.
538    int64_t token = IPCThreadState::self()->clearCallingIdentity();
539    mCamera->unlock();
540    mCamera.clear();
541    IPCThreadState::self()->restoreCallingIdentity(token);
542    CHECK_EQ(OK, mCameraRecordingProxy->startRecording(new ProxyListener(this)));
543}
544
545status_t CameraSource::start(MetaData *meta) {
546    CHECK(!mStarted);
547    if (mInitCheck != OK) {
548        LOGE("CameraSource is not initialized yet");
549        return mInitCheck;
550    }
551
552    char value[PROPERTY_VALUE_MAX];
553    if (property_get("media.stagefright.record-stats", value, NULL)
554        && (!strcmp(value, "1") || !strcasecmp(value, "true"))) {
555        mCollectStats = true;
556    }
557
558    mStartTimeUs = 0;
559    int64_t startTimeUs;
560    if (meta && meta->findInt64(kKeyTime, &startTimeUs)) {
561        mStartTimeUs = startTimeUs;
562    }
563
564    startCameraRecording();
565
566    mStarted = true;
567    return OK;
568}
569
570void CameraSource::stopCameraRecording() {
571    mCameraRecordingProxy->stopRecording();
572}
573
574void CameraSource::releaseCamera() {
575    LOGV("releaseCamera");
576    if ((mCameraFlags & FLAGS_HOT_CAMERA) == 0) {
577        LOGV("Camera was cold when we started, stopping preview");
578        mCamera->stopPreview();
579    }
580    mCamera.clear();
581    mCameraRecordingProxy->asBinder()->unlinkToDeath(mDeathNotifier);
582    mCameraRecordingProxy.clear();
583    mCameraFlags = 0;
584}
585
586status_t CameraSource::stop() {
587    LOGD("stop: E");
588    Mutex::Autolock autoLock(mLock);
589    mStarted = false;
590    mFrameAvailableCondition.signal();
591
592    releaseQueuedFrames();
593    while (!mFramesBeingEncoded.empty()) {
594        if (NO_ERROR !=
595            mFrameCompleteCondition.waitRelative(mLock, 3000000000LL)) {
596            LOGW("Timed out waiting for outstanding frames being encoded: %d",
597                mFramesBeingEncoded.size());
598        }
599    }
600    stopCameraRecording();
601    releaseCamera();
602
603    if (mCollectStats) {
604        LOGI("Frames received/encoded/dropped: %d/%d/%d in %lld us",
605                mNumFramesReceived, mNumFramesEncoded, mNumFramesDropped,
606                mLastFrameTimestampUs - mFirstFrameTimeUs);
607    }
608
609    if (mNumGlitches > 0) {
610        LOGW("%d long delays between neighboring video frames", mNumGlitches);
611    }
612
613    CHECK_EQ(mNumFramesReceived, mNumFramesEncoded + mNumFramesDropped);
614    LOGD("stop: X");
615    return OK;
616}
617
618void CameraSource::releaseRecordingFrame(const sp<IMemory>& frame) {
619    if (mCameraRecordingProxy != NULL) {
620        mCameraRecordingProxy->releaseRecordingFrame(frame);
621    }
622}
623
624void CameraSource::releaseQueuedFrames() {
625    List<sp<IMemory> >::iterator it;
626    while (!mFramesReceived.empty()) {
627        it = mFramesReceived.begin();
628        releaseRecordingFrame(*it);
629        mFramesReceived.erase(it);
630        ++mNumFramesDropped;
631    }
632}
633
634sp<MetaData> CameraSource::getFormat() {
635    return mMeta;
636}
637
638void CameraSource::releaseOneRecordingFrame(const sp<IMemory>& frame) {
639    releaseRecordingFrame(frame);
640}
641
642void CameraSource::signalBufferReturned(MediaBuffer *buffer) {
643    LOGV("signalBufferReturned: %p", buffer->data());
644    Mutex::Autolock autoLock(mLock);
645    for (List<sp<IMemory> >::iterator it = mFramesBeingEncoded.begin();
646         it != mFramesBeingEncoded.end(); ++it) {
647        if ((*it)->pointer() ==  buffer->data()) {
648            releaseOneRecordingFrame((*it));
649            mFramesBeingEncoded.erase(it);
650            ++mNumFramesEncoded;
651            buffer->setObserver(0);
652            buffer->release();
653            mFrameCompleteCondition.signal();
654            return;
655        }
656    }
657    CHECK_EQ(0, "signalBufferReturned: bogus buffer");
658}
659
660status_t CameraSource::read(
661        MediaBuffer **buffer, const ReadOptions *options) {
662    LOGV("read");
663
664    *buffer = NULL;
665
666    int64_t seekTimeUs;
667    ReadOptions::SeekMode mode;
668    if (options && options->getSeekTo(&seekTimeUs, &mode)) {
669        return ERROR_UNSUPPORTED;
670    }
671
672    sp<IMemory> frame;
673    int64_t frameTime;
674
675    {
676        Mutex::Autolock autoLock(mLock);
677        while (mStarted && mFramesReceived.empty()) {
678            if (NO_ERROR !=
679                mFrameAvailableCondition.waitRelative(mLock, 1000000000LL)) {
680                if (!mCameraRecordingProxy->asBinder()->isBinderAlive()) {
681                    LOGW("camera recording proxy is gone");
682                    return ERROR_END_OF_STREAM;
683                }
684                LOGW("Timed out waiting for incoming camera video frames: %lld us",
685                    mLastFrameTimestampUs);
686            }
687        }
688        if (!mStarted) {
689            return OK;
690        }
691        frame = *mFramesReceived.begin();
692        mFramesReceived.erase(mFramesReceived.begin());
693
694        frameTime = *mFrameTimes.begin();
695        mFrameTimes.erase(mFrameTimes.begin());
696        mFramesBeingEncoded.push_back(frame);
697        *buffer = new MediaBuffer(frame->pointer(), frame->size());
698        (*buffer)->setObserver(this);
699        (*buffer)->add_ref();
700        (*buffer)->meta_data()->setInt64(kKeyTime, frameTime);
701    }
702    return OK;
703}
704
705void CameraSource::dataCallbackTimestamp(int64_t timestampUs,
706        int32_t msgType, const sp<IMemory> &data) {
707    LOGV("dataCallbackTimestamp: timestamp %lld us", timestampUs);
708    Mutex::Autolock autoLock(mLock);
709    if (!mStarted || (mNumFramesReceived == 0 && timestampUs < mStartTimeUs)) {
710        LOGV("Drop frame at %lld/%lld us", timestampUs, mStartTimeUs);
711        releaseOneRecordingFrame(data);
712        return;
713    }
714
715    if (mNumFramesReceived > 0) {
716        CHECK(timestampUs > mLastFrameTimestampUs);
717        if (timestampUs - mLastFrameTimestampUs > mGlitchDurationThresholdUs) {
718            ++mNumGlitches;
719        }
720    }
721
722    // May need to skip frame or modify timestamp. Currently implemented
723    // by the subclass CameraSourceTimeLapse.
724    if (skipCurrentFrame(timestampUs)) {
725        releaseOneRecordingFrame(data);
726        return;
727    }
728
729    mLastFrameTimestampUs = timestampUs;
730    if (mNumFramesReceived == 0) {
731        mFirstFrameTimeUs = timestampUs;
732        // Initial delay
733        if (mStartTimeUs > 0) {
734            if (timestampUs < mStartTimeUs) {
735                // Frame was captured before recording was started
736                // Drop it without updating the statistical data.
737                releaseOneRecordingFrame(data);
738                return;
739            }
740            mStartTimeUs = timestampUs - mStartTimeUs;
741        }
742    }
743    ++mNumFramesReceived;
744
745    CHECK(data != NULL && data->size() > 0);
746    mFramesReceived.push_back(data);
747    int64_t timeUs = mStartTimeUs + (timestampUs - mFirstFrameTimeUs);
748    mFrameTimes.push_back(timeUs);
749    LOGV("initial delay: %lld, current time stamp: %lld",
750        mStartTimeUs, timeUs);
751    mFrameAvailableCondition.signal();
752}
753
754bool CameraSource::isMetaDataStoredInVideoBuffers() const {
755    LOGV("isMetaDataStoredInVideoBuffers");
756    return mIsMetaDataStoredInVideoBuffers;
757}
758
759CameraSource::ProxyListener::ProxyListener(const sp<CameraSource>& source) {
760    mSource = source;
761}
762
763void CameraSource::ProxyListener::dataCallbackTimestamp(
764        nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr) {
765    mSource->dataCallbackTimestamp(timestamp / 1000, msgType, dataPtr);
766}
767
768void CameraSource::DeathNotifier::binderDied(const wp<IBinder>& who) {
769    LOGI("Camera recording proxy died");
770}
771
772}  // namespace android
773