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gecko/dom/camera/GonkCameraSource.cpp

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/*
* Copyright (C) 2009 The Android Open Source Project
* Copyright (C) 2013 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <base/basictypes.h>
#include "nsDebug.h"
#define DOM_CAMERA_LOG_LEVEL 3
#include "CameraCommon.h"
/*
#define CS_LOGD(...) DOM_CAMERA_LOGA(__VA_ARGS__)
#define CS_LOGV(...) DOM_CAMERA_LOGI(__VA_ARGS__)
#define CS_LOGI(...) DOM_CAMERA_LOGI(__VA_ARGS__)
#define CS_LOGW(...) DOM_CAMERA_LOGW(__VA_ARGS__)
#define CS_LOGE(...) DOM_CAMERA_LOGE(__VA_ARGS__)
*/
#define CS_LOGD(fmt, ...) DOM_CAMERA_LOGA("[%s:%d]" fmt,__FILE__,__LINE__, ## __VA_ARGS__)
#define CS_LOGV(fmt, ...) DOM_CAMERA_LOGI("[%s:%d]" fmt,__FILE__,__LINE__, ## __VA_ARGS__)
#define CS_LOGI(fmt, ...) DOM_CAMERA_LOGI("[%s:%d]" fmt,__FILE__,__LINE__, ## __VA_ARGS__)
#define CS_LOGW(fmt, ...) DOM_CAMERA_LOGW("[%s:%d]" fmt,__FILE__,__LINE__, ## __VA_ARGS__)
#define CS_LOGE(fmt, ...) DOM_CAMERA_LOGE("[%s:%d]" fmt,__FILE__,__LINE__, ## __VA_ARGS__)
#include <OMX_Component.h>
#include <binder/IPCThreadState.h>
#include <media/stagefright/foundation/ADebug.h>
#include <media/stagefright/MediaDefs.h>
#include <media/stagefright/MediaErrors.h>
#include <media/stagefright/MetaData.h>
#include <camera/CameraParameters.h>
#include <utils/String8.h>
#include <cutils/properties.h>
#include "GonkCameraSource.h"
#include "GonkCameraListener.h"
#include "GonkCameraHwMgr.h"
using namespace mozilla;
namespace android {
static const int64_t CAMERA_SOURCE_TIMEOUT_NS = 3000000000LL;
struct GonkCameraSourceListener : public GonkCameraListener {
GonkCameraSourceListener(const sp<GonkCameraSource> &source);
virtual void notify(int32_t msgType, int32_t ext1, int32_t ext2);
virtual bool postData(int32_t msgType, const sp<IMemory> &dataPtr,
camera_frame_metadata_t *metadata);
virtual bool postDataTimestamp(
nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr);
protected:
virtual ~GonkCameraSourceListener();
private:
wp<GonkCameraSource> mSource;
GonkCameraSourceListener(const GonkCameraSourceListener &);
GonkCameraSourceListener &operator=(const GonkCameraSourceListener &);
};
GonkCameraSourceListener::GonkCameraSourceListener(const sp<GonkCameraSource> &source)
: mSource(source) {
}
GonkCameraSourceListener::~GonkCameraSourceListener() {
}
void GonkCameraSourceListener::notify(int32_t msgType, int32_t ext1, int32_t ext2) {
CS_LOGV("notify(%d, %d, %d)", msgType, ext1, ext2);
}
bool GonkCameraSourceListener::postData(int32_t msgType, const sp<IMemory> &dataPtr,
camera_frame_metadata_t *metadata) {
CS_LOGV("postData(%d, ptr:%p, size:%d)",
msgType, dataPtr->pointer(), dataPtr->size());
sp<GonkCameraSource> source = mSource.promote();
if (source.get() != NULL) {
source->dataCallback(msgType, dataPtr);
return true;
}
return false;
}
bool GonkCameraSourceListener::postDataTimestamp(
nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr) {
sp<GonkCameraSource> source = mSource.promote();
if (source.get() != NULL) {
source->dataCallbackTimestamp(timestamp/1000, msgType, dataPtr);
return true;
}
return false;
}
static int32_t getColorFormat(const char* colorFormat) {
return OMX_COLOR_FormatYUV420SemiPlanar; //XXX nsGonkCameraControl uses only YUV420SemiPlanar
if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_YUV420P)) {
return OMX_COLOR_FormatYUV420Planar;
}
if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_YUV422SP)) {
return OMX_COLOR_FormatYUV422SemiPlanar;
}
if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_YUV420SP)) {
return OMX_COLOR_FormatYUV420SemiPlanar;
}
if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_YUV422I)) {
return OMX_COLOR_FormatYCbYCr;
}
if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_RGB565)) {
return OMX_COLOR_Format16bitRGB565;
}
if (!strcmp(colorFormat, "OMX_TI_COLOR_FormatYUV420PackedSemiPlanar")) {
return OMX_TI_COLOR_FormatYUV420PackedSemiPlanar;
}
#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_ANDROID_OPAQUE)) {
return OMX_COLOR_FormatAndroidOpaque;
}
#endif
CS_LOGE("Uknown color format (%s), please add it to "
"GonkCameraSource::getColorFormat", colorFormat);
CHECK(!"Unknown color format");
}
GonkCameraSource *GonkCameraSource::Create(
const sp<GonkCameraHardware>& aCameraHw,
Size videoSize,
int32_t frameRate,
bool storeMetaDataInVideoBuffers) {
GonkCameraSource *source = new GonkCameraSource(aCameraHw,
videoSize, frameRate,
storeMetaDataInVideoBuffers);
return source;
}
GonkCameraSource::GonkCameraSource(
const sp<GonkCameraHardware>& aCameraHw,
Size videoSize,
int32_t frameRate,
bool storeMetaDataInVideoBuffers)
: mCameraFlags(0),
mNumInputBuffers(0),
mVideoFrameRate(-1),
mNumFramesReceived(0),
mLastFrameTimestampUs(0),
mStarted(false),
mNumFramesEncoded(0),
mTimeBetweenFrameCaptureUs(0),
mRateLimit(false),
mFirstFrameTimeUs(0),
mNumFramesDropped(0),
mNumGlitches(0),
mGlitchDurationThresholdUs(200000),
mCollectStats(false),
mCameraHw(aCameraHw) {
mVideoSize.width = -1;
mVideoSize.height = -1;
mInitCheck = init(
videoSize, frameRate,
storeMetaDataInVideoBuffers);
if (mInitCheck != OK) releaseCamera();
}
status_t GonkCameraSource::initCheck() const {
return mInitCheck;
}
//TODO: Do we need to reimplement isCameraAvailable?
/*
* Check to see whether the requested video width and height is one
* of the supported sizes.
* @param width the video frame width in pixels
* @param height the video frame height in pixels
* @param suppportedSizes the vector of sizes that we check against
* @return true if the dimension (width and height) is supported.
*/
static bool isVideoSizeSupported(
int32_t width, int32_t height,
const Vector<Size>& supportedSizes) {
CS_LOGV("isVideoSizeSupported");
for (size_t i = 0; i < supportedSizes.size(); ++i) {
if (width == supportedSizes[i].width &&
height == supportedSizes[i].height) {
return true;
}
}
return false;
}
/*
* If the preview and video output is separate, we only set the
* the video size, and applications should set the preview size
* to some proper value, and the recording framework will not
* change the preview size; otherwise, if the video and preview
* output is the same, we need to set the preview to be the same
* as the requested video size.
*
*/
/*
* Query the camera to retrieve the supported video frame sizes
* and also to see whether CameraParameters::setVideoSize()
* is supported or not.
* @param params CameraParameters to retrieve the information
* @@param isSetVideoSizeSupported retunrs whether method
* CameraParameters::setVideoSize() is supported or not.
* @param sizes returns the vector of Size objects for the
* supported video frame sizes advertised by the camera.
*/
static void getSupportedVideoSizes(
const CameraParameters& params,
bool *isSetVideoSizeSupported,
Vector<Size>& sizes) {
*isSetVideoSizeSupported = true;
params.getSupportedVideoSizes(sizes);
if (sizes.size() == 0) {
CS_LOGD("Camera does not support setVideoSize()");
params.getSupportedPreviewSizes(sizes);
*isSetVideoSizeSupported = false;
}
}
/*
* Check whether the camera has the supported color format
* @param params CameraParameters to retrieve the information
* @return OK if no error.
*/
status_t GonkCameraSource::isCameraColorFormatSupported(
const CameraParameters& params) {
mColorFormat = getColorFormat(params.get(
CameraParameters::KEY_VIDEO_FRAME_FORMAT));
if (mColorFormat == -1) {
return BAD_VALUE;
}
return OK;
}
/*
* Configure the camera to use the requested video size
* (width and height) and/or frame rate. If both width and
* height are -1, configuration on the video size is skipped.
* if frameRate is -1, configuration on the frame rate
* is skipped. Skipping the configuration allows one to
* use the current camera setting without the need to
* actually know the specific values (see Create() method).
*
* @param params the CameraParameters to be configured
* @param width the target video frame width in pixels
* @param height the target video frame height in pixels
* @param frameRate the target frame rate in frames per second.
* @return OK if no error.
*/
status_t GonkCameraSource::configureCamera(
CameraParameters* params,
int32_t width, int32_t height,
int32_t frameRate) {
CS_LOGV("configureCamera");
Vector<Size> sizes;
bool isSetVideoSizeSupportedByCamera = true;
getSupportedVideoSizes(*params, &isSetVideoSizeSupportedByCamera, sizes);
bool isCameraParamChanged = false;
if (width != -1 && height != -1) {
if (!isVideoSizeSupported(width, height, sizes)) {
CS_LOGE("Video dimension (%dx%d) is unsupported", width, height);
return BAD_VALUE;
}
if (isSetVideoSizeSupportedByCamera) {
params->setVideoSize(width, height);
} else {
params->setPreviewSize(width, height);
}
isCameraParamChanged = true;
} else if ((width == -1 && height != -1) ||
(width != -1 && height == -1)) {
// If one and only one of the width and height is -1
// we reject such a request.
CS_LOGE("Requested video size (%dx%d) is not supported", width, height);
return BAD_VALUE;
} else { // width == -1 && height == -1
// Do not configure the camera.
// Use the current width and height value setting from the camera.
}
if (frameRate != -1) {
CHECK(frameRate > 0 && frameRate <= 120);
const char* supportedFrameRates =
params->get(CameraParameters::KEY_SUPPORTED_PREVIEW_FRAME_RATES);
CHECK(supportedFrameRates != NULL);
CS_LOGV("Supported frame rates: %s", supportedFrameRates);
char buf[4];
snprintf(buf, 4, "%d", frameRate);
if (strstr(supportedFrameRates, buf) == NULL) {
CS_LOGE("Requested frame rate (%d) is not supported: %s",
frameRate, supportedFrameRates);
return BAD_VALUE;
}
// The frame rate is supported, set the camera to the requested value.
params->setPreviewFrameRate(frameRate);
isCameraParamChanged = true;
} else { // frameRate == -1
// Do not configure the camera.
// Use the current frame rate value setting from the camera
}
if (isCameraParamChanged) {
// Either frame rate or frame size needs to be changed.
if (OK != mCameraHw->PushParameters(*params)) {
CS_LOGE("Could not change settings."
" Someone else is using camera?");
return -EBUSY;
}
}
return OK;
}
/*
* Check whether the requested video frame size
* has been successfully configured or not. If both width and height
* are -1, check on the current width and height value setting
* is performed.
*
* @param params CameraParameters to retrieve the information
* @param the target video frame width in pixels to check against
* @param the target video frame height in pixels to check against
* @return OK if no error
*/
status_t GonkCameraSource::checkVideoSize(
const CameraParameters& params,
int32_t width, int32_t height) {
CS_LOGV("checkVideoSize");
// The actual video size is the same as the preview size
// if the camera hal does not support separate video and
// preview output. In this case, we retrieve the video
// size from preview.
int32_t frameWidthActual = -1;
int32_t frameHeightActual = -1;
Vector<Size> sizes;
params.getSupportedVideoSizes(sizes);
if (sizes.size() == 0) {
// video size is the same as preview size
params.getPreviewSize(&frameWidthActual, &frameHeightActual);
} else {
// video size may not be the same as preview
params.getVideoSize(&frameWidthActual, &frameHeightActual);
}
if (frameWidthActual < 0 || frameHeightActual < 0) {
CS_LOGE("Failed to retrieve video frame size (%dx%d)",
frameWidthActual, frameHeightActual);
return UNKNOWN_ERROR;
}
// Check the actual video frame size against the target/requested
// video frame size.
if (width != -1 && height != -1) {
if (frameWidthActual != width || frameHeightActual != height) {
CS_LOGE("Failed to set video frame size to %dx%d. "
"The actual video size is %dx%d ", width, height,
frameWidthActual, frameHeightActual);
return UNKNOWN_ERROR;
}
}
// Good now.
mVideoSize.width = frameWidthActual;
mVideoSize.height = frameHeightActual;
return OK;
}
/*
* Check the requested frame rate has been successfully configured or not.
* If the target frameRate is -1, check on the current frame rate value
* setting is performed.
*
* @param params CameraParameters to retrieve the information
* @param the target video frame rate to check against
* @return OK if no error.
*/
status_t GonkCameraSource::checkFrameRate(
const CameraParameters& params,
int32_t frameRate) {
CS_LOGV("checkFrameRate");
int32_t frameRateActual = params.getPreviewFrameRate();
if (frameRateActual < 0) {
CS_LOGE("Failed to retrieve preview frame rate (%d)", frameRateActual);
return UNKNOWN_ERROR;
}
// Check the actual video frame rate against the target/requested
// video frame rate.
if (frameRate != -1 && (frameRateActual - frameRate) != 0) {
CS_LOGE("Failed to set preview frame rate to %d fps. The actual "
"frame rate is %d", frameRate, frameRateActual);
return UNKNOWN_ERROR;
}
// Good now.
mVideoFrameRate = frameRateActual;
return OK;
}
/*
* Initialize the GonkCameraSource so that it becomes
* ready for providing the video input streams as requested.
* @param camera the camera object used for the video source
* @param cameraId if camera == 0, use camera with this id
* as the video source
* @param videoSize the target video frame size. If both
* width and height in videoSize is -1, use the current
* width and heigth settings by the camera
* @param frameRate the target frame rate in frames per second.
* if it is -1, use the current camera frame rate setting.
* @param storeMetaDataInVideoBuffers request to store meta
* data or real YUV data in video buffers. Request to
* store meta data in video buffers may not be honored
* if the source does not support this feature.
*
* @return OK if no error.
*/
status_t GonkCameraSource::init(
Size videoSize,
int32_t frameRate,
bool storeMetaDataInVideoBuffers) {
CS_LOGV("init");
status_t err = OK;
//TODO: need to do something here to check the sanity of camera
CameraParameters params;
mCameraHw->PullParameters(params);
if ((err = isCameraColorFormatSupported(params)) != OK) {
return err;
}
// Set the camera to use the requested video frame size
// and/or frame rate.
if ((err = configureCamera(&params,
videoSize.width, videoSize.height,
frameRate))) {
return err;
}
// Check on video frame size and frame rate.
CameraParameters newCameraParams;
mCameraHw->PullParameters(newCameraParams);
if ((err = checkVideoSize(newCameraParams,
videoSize.width, videoSize.height)) != OK) {
return err;
}
if ((err = checkFrameRate(newCameraParams, frameRate)) != OK) {
return err;
}
// By default, do not store metadata in video buffers
mIsMetaDataStoredInVideoBuffers = false;
mCameraHw->StoreMetaDataInBuffers(false);
if (storeMetaDataInVideoBuffers) {
if (OK == mCameraHw->StoreMetaDataInBuffers(true)) {
mIsMetaDataStoredInVideoBuffers = true;
}
}
int64_t glitchDurationUs = (1000000LL / mVideoFrameRate);
if (glitchDurationUs > mGlitchDurationThresholdUs) {
mGlitchDurationThresholdUs = glitchDurationUs;
}
// XXX: query camera for the stride and slice height
// when the capability becomes available.
mMeta = new MetaData;
mMeta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RAW);
mMeta->setInt32(kKeyColorFormat, mColorFormat);
mMeta->setInt32(kKeyWidth, mVideoSize.width);
mMeta->setInt32(kKeyHeight, mVideoSize.height);
mMeta->setInt32(kKeyStride, mVideoSize.width);
mMeta->setInt32(kKeySliceHeight, mVideoSize.height);
mMeta->setInt32(kKeyFrameRate, mVideoFrameRate);
return OK;
}
GonkCameraSource::~GonkCameraSource() {
if (mStarted) {
reset();
} else if (mInitCheck == OK) {
// Camera is initialized but because start() is never called,
// the lock on Camera is never released(). This makes sure
// Camera's lock is released in this case.
// TODO: Don't think I need to do this
releaseCamera();
}
}
int GonkCameraSource::startCameraRecording() {
CS_LOGV("startCameraRecording");
return mCameraHw->StartRecording();
}
status_t GonkCameraSource::start(MetaData *meta) {
int rv;
CS_LOGV("start");
CHECK(!mStarted);
if (mInitCheck != OK) {
CS_LOGE("GonkCameraSource is not initialized yet");
return mInitCheck;
}
char value[PROPERTY_VALUE_MAX];
if (property_get("media.stagefright.record-stats", value, NULL)
&& (!strcmp(value, "1") || !strcasecmp(value, "true"))) {
mCollectStats = true;
}
mStartTimeUs = 0;
mNumInputBuffers = 0;
if (meta) {
int64_t startTimeUs;
if (meta->findInt64(kKeyTime, &startTimeUs)) {
mStartTimeUs = startTimeUs;
}
#if defined(MOZ_WIDGET_GONK) && ANDROID_VERSION >= 17
int32_t nBuffers;
if (meta->findInt32(kKeyNumBuffers, &nBuffers)) {
CHECK_GT(nBuffers, 0);
mNumInputBuffers = nBuffers;
}
#endif
}
// Register a listener with GonkCameraHardware so that we can get callbacks
mCameraHw->SetListener(new GonkCameraSourceListener(this));
rv = startCameraRecording();
mStarted = (rv == OK);
return rv;
}
void GonkCameraSource::stopCameraRecording() {
CS_LOGV("stopCameraRecording");
mCameraHw->StopRecording();
}
void GonkCameraSource::releaseCamera() {
CS_LOGV("releaseCamera");
}
status_t GonkCameraSource::reset() {
CS_LOGD("reset: E");
Mutex::Autolock autoLock(mLock);
mStarted = false;
mFrameAvailableCondition.signal();
releaseQueuedFrames();
while (!mFramesBeingEncoded.empty()) {
if (NO_ERROR !=
mFrameCompleteCondition.waitRelative(mLock,
mTimeBetweenFrameCaptureUs * 1000LL + CAMERA_SOURCE_TIMEOUT_NS)) {
CS_LOGW("Timed out waiting for outstanding frames being encoded: %d",
mFramesBeingEncoded.size());
}
}
stopCameraRecording();
if (mRateLimit) {
mRateLimit = false;
mCameraHw->OnRateLimitPreview(false);
}
releaseCamera();
if (mCollectStats) {
CS_LOGI("Frames received/encoded/dropped: %d/%d/%d in %lld us",
mNumFramesReceived, mNumFramesEncoded, mNumFramesDropped,
mLastFrameTimestampUs - mFirstFrameTimeUs);
}
if (mNumGlitches > 0) {
CS_LOGW("%d long delays between neighboring video frames", mNumGlitches);
}
CHECK_EQ(mNumFramesReceived, mNumFramesEncoded + mNumFramesDropped);
CS_LOGD("reset: X");
return OK;
}
void GonkCameraSource::releaseRecordingFrame(const sp<IMemory>& frame) {
CS_LOGV("releaseRecordingFrame");
mCameraHw->ReleaseRecordingFrame(frame);
}
void GonkCameraSource::releaseQueuedFrames() {
List<sp<IMemory> >::iterator it;
while (!mFramesReceived.empty()) {
it = mFramesReceived.begin();
releaseRecordingFrame(*it);
mFramesReceived.erase(it);
++mNumFramesDropped;
}
}
sp<MetaData> GonkCameraSource::getFormat() {
return mMeta;
}
void GonkCameraSource::releaseOneRecordingFrame(const sp<IMemory>& frame) {
releaseRecordingFrame(frame);
}
void GonkCameraSource::signalBufferReturned(MediaBuffer *buffer) {
CS_LOGV("signalBufferReturned: %p", buffer->data());
Mutex::Autolock autoLock(mLock);
for (List<sp<IMemory> >::iterator it = mFramesBeingEncoded.begin();
it != mFramesBeingEncoded.end(); ++it) {
if ((*it)->pointer() == buffer->data()) {
releaseOneRecordingFrame((*it));
mFramesBeingEncoded.erase(it);
++mNumFramesEncoded;
buffer->setObserver(0);
buffer->release();
mFrameCompleteCondition.signal();
return;
}
}
CHECK(!"signalBufferReturned: bogus buffer");
}
status_t GonkCameraSource::read(
MediaBuffer **buffer, const ReadOptions *options) {
CS_LOGV("read");
*buffer = NULL;
int64_t seekTimeUs;
ReadOptions::SeekMode mode;
if (options && options->getSeekTo(&seekTimeUs, &mode)) {
return ERROR_UNSUPPORTED;
}
sp<IMemory> frame;
int64_t frameTime;
{
Mutex::Autolock autoLock(mLock);
while (mStarted && mFramesReceived.empty()) {
if (NO_ERROR !=
mFrameAvailableCondition.waitRelative(mLock,
mTimeBetweenFrameCaptureUs * 1000LL + CAMERA_SOURCE_TIMEOUT_NS)) {
//TODO: check sanity of camera?
CS_LOGW("Timed out waiting for incoming camera video frames: %lld us",
mLastFrameTimestampUs);
}
}
if (!mStarted) {
return OK;
}
frame = *mFramesReceived.begin();
mFramesReceived.erase(mFramesReceived.begin());
frameTime = *mFrameTimes.begin();
mFrameTimes.erase(mFrameTimes.begin());
mFramesBeingEncoded.push_back(frame);
*buffer = new MediaBuffer(frame->pointer(), frame->size());
(*buffer)->setObserver(this);
(*buffer)->add_ref();
(*buffer)->meta_data()->setInt64(kKeyTime, frameTime);
}
return OK;
}
void GonkCameraSource::dataCallbackTimestamp(int64_t timestampUs,
int32_t msgType, const sp<IMemory> &data) {
bool rateLimit;
bool prevRateLimit;
CS_LOGV("dataCallbackTimestamp: timestamp %lld us", timestampUs);
{
Mutex::Autolock autoLock(mLock);
if (!mStarted || (mNumFramesReceived == 0 && timestampUs < mStartTimeUs)) {
CS_LOGV("Drop frame at %lld/%lld us", timestampUs, mStartTimeUs);
releaseOneRecordingFrame(data);
return;
}
if (mNumFramesReceived > 0) {
if (timestampUs <= mLastFrameTimestampUs) {
CS_LOGE("Drop frame at %lld us, before last at %lld us",
timestampUs, mLastFrameTimestampUs);
releaseOneRecordingFrame(data);
return;
}
if (timestampUs - mLastFrameTimestampUs > mGlitchDurationThresholdUs) {
++mNumGlitches;
}
}
// May need to skip frame or modify timestamp. Currently implemented
// by the subclass CameraSourceTimeLapse.
if (skipCurrentFrame(timestampUs)) {
releaseOneRecordingFrame(data);
return;
}
mLastFrameTimestampUs = timestampUs;
if (mNumFramesReceived == 0) {
mFirstFrameTimeUs = timestampUs;
// Initial delay
if (mStartTimeUs > 0) {
if (timestampUs < mStartTimeUs) {
// Frame was captured before recording was started
// Drop it without updating the statistical data.
releaseOneRecordingFrame(data);
return;
}
mStartTimeUs = timestampUs - mStartTimeUs;
}
}
++mNumFramesReceived;
// If a backlog is building up in the receive queue, we are likely
// resource constrained and we need to throttle
prevRateLimit = mRateLimit;
rateLimit = mFramesReceived.empty();
mRateLimit = rateLimit;
CHECK(data != NULL && data->size() > 0);
mFramesReceived.push_back(data);
int64_t timeUs = mStartTimeUs + (timestampUs - mFirstFrameTimeUs);
mFrameTimes.push_back(timeUs);
CS_LOGV("initial delay: %lld, current time stamp: %lld",
mStartTimeUs, timeUs);
mFrameAvailableCondition.signal();
}
if(prevRateLimit != rateLimit) {
mCameraHw->OnRateLimitPreview(rateLimit);
}
}
bool GonkCameraSource::isMetaDataStoredInVideoBuffers() const {
CS_LOGV("isMetaDataStoredInVideoBuffers");
return mIsMetaDataStoredInVideoBuffers;
}
} // namespace android
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