void ProCamera::onResultReceived(int32_t requestId, camera_metadata* result) {
ALOGV("%s: requestId = %d, result = %p", __FUNCTION__, requestId, result);
sp<ProCameraListener> listener;
{
Mutex::Autolock _l(mLock);
listener = mListener;
}
CameraMetadata tmp(result);
// Unblock waitForFrame(id) callers
{
Mutex::Autolock al(mWaitMutex);
mMetadataReady = true;
mLatestMetadata = tmp; // make copy
mWaitCondition.broadcast();
}
result = tmp.release();
if (listener != NULL) {
listener->onResultReceived(requestId, result);
} else {
free_camera_metadata(result);
}
}
status_t MetadataQueue::freeBuffers(List<camera_metadata_t*>::iterator start,
List<camera_metadata_t*>::iterator end) {
while (start != end) {
free_camera_metadata(*start);
start = mStreamSlot.erase(start);
}
return OK;
}
void CameraMetadata::clear() {
if (mLocked) {
ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
return;
}
if (mBuffer) {
free_camera_metadata(mBuffer);
mBuffer = NULL;
}
}
CameraModule::~CameraModule()
{
while (mCameraInfoMap.size() > 0) {
camera_info cameraInfo = mCameraInfoMap.editValueAt(0);
if (cameraInfo.static_camera_characteristics != NULL) {
free_camera_metadata(
const_cast<camera_metadata_t*>(cameraInfo.static_camera_characteristics));
}
mCameraInfoMap.removeItemsAt(0);
}
}
camera_metadata_t* Metadata::generate()
{
pthread_mutex_lock(&mMutex);
// Reuse if old generated metadata still valid
if (!mDirty && mGenerated != NULL) {
ALOGV("%s: Reusing generated metadata at %p", __func__, mGenerated);
goto out;
}
// Destroy old metadata
if (mGenerated != NULL) {
ALOGV("%s: Freeing generated metadata at %p", __func__, mGenerated);
free_camera_metadata(mGenerated);
mGenerated = NULL;
}
// Generate new metadata structure
ALOGV("%s: Generating new camera metadata structure, Entries:%d Data:%d",
__func__, mEntryCount, mDataCount);
mGenerated = allocate_camera_metadata(mEntryCount, mDataCount);
if (mGenerated == NULL) {
ALOGE("%s: Failed to allocate metadata (%d entries %d data)",
__func__, mEntryCount, mDataCount);
goto out;
}
// Walk list of entries adding each one to newly allocated metadata
for (Entry *current = mHead; current != NULL; current = current->mNext) {
int res = add_camera_metadata_entry(mGenerated, current->mTag,
current->mData, current->mCount);
if (res != 0) {
ALOGE("%s: Failed to add camera metadata: %d", __func__, res);
free_camera_metadata(mGenerated);
mGenerated = NULL;
goto out;
}
}
out:
pthread_mutex_unlock(&mMutex);
return mGenerated;
}
Metadata::~Metadata()
{
Entry *current = mHead;
while (current != NULL) {
Entry *tmp = current;
current = current->mNext;
delete tmp;
}
if (mGenerated != NULL)
free_camera_metadata(mGenerated);
pthread_mutex_destroy(&mMutex);
}
status_t MetadataQueue::setStreamSlot(camera_metadata_t *buf) {
if (buf == NULL) {
freeBuffers(mStreamSlot.begin(), mStreamSlot.end());
mStreamSlotCount = 0;
return OK;
}
if (mStreamSlotCount > 1) {
List<camera_metadata_t*>::iterator deleter = ++mStreamSlot.begin();
freeBuffers(++mStreamSlot.begin(), mStreamSlot.end());
mStreamSlotCount = 1;
}
if (mStreamSlotCount == 1) {
free_camera_metadata( *(mStreamSlot.begin()) );
*(mStreamSlot.begin()) = buf;
} else {
mStreamSlot.push_front(buf);
mStreamSlotCount = 1;
}
return OK;
}
status_t CameraMetadata::resizeIfNeeded(size_t extraEntries, size_t extraData) {
if (mBuffer == NULL) {
mBuffer = allocate_camera_metadata(extraEntries * 2, extraData * 2);
if (mBuffer == NULL) {
ALOGE("%s: Can't allocate larger metadata buffer", __FUNCTION__);
return NO_MEMORY;
}
} else {
size_t currentEntryCount = get_camera_metadata_entry_count(mBuffer);
size_t currentEntryCap = get_camera_metadata_entry_capacity(mBuffer);
size_t newEntryCount = currentEntryCount +
extraEntries;
newEntryCount = (newEntryCount > currentEntryCap) ?
newEntryCount * 2 : currentEntryCap;
size_t currentDataCount = get_camera_metadata_data_count(mBuffer);
size_t currentDataCap = get_camera_metadata_data_capacity(mBuffer);
size_t newDataCount = currentDataCount +
extraData;
newDataCount = (newDataCount > currentDataCap) ?
newDataCount * 2 : currentDataCap;
if (newEntryCount > currentEntryCap ||
newDataCount > currentDataCap) {
camera_metadata_t *oldBuffer = mBuffer;
mBuffer = allocate_camera_metadata(newEntryCount,
newDataCount);
if (mBuffer == NULL) {
ALOGE("%s: Can't allocate larger metadata buffer", __FUNCTION__);
return NO_MEMORY;
}
append_camera_metadata(mBuffer, oldBuffer);
free_camera_metadata(oldBuffer);
}
}
return OK;
}
void CameraMetadata::clear() {
if (mBuffer) {
free_camera_metadata(mBuffer);
mBuffer = NULL;
}
}
int UsbCamera::initStaticInfo() {
/*
* Setup static camera info. This will have to customized per camera
* device.
* TODO: this is just some sample code, need tailor for USB cameras.
*/
if (mStaticInfo != NULL) {
free_camera_metadata(mStaticInfo);
}
Metadata m;
/* android.control */
int32_t android_control_ae_available_target_fps_ranges[] = {30, 30};
m.addInt32(ANDROID_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES,
ARRAY_SIZE(android_control_ae_available_target_fps_ranges),
android_control_ae_available_target_fps_ranges);
int32_t android_control_ae_compensation_range[] = {-4, 4};
m.addInt32(ANDROID_CONTROL_AE_COMPENSATION_RANGE,
ARRAY_SIZE(android_control_ae_compensation_range),
android_control_ae_compensation_range);
camera_metadata_rational_t android_control_ae_compensation_step[] = {{2,1}};
m.addRational(ANDROID_CONTROL_AE_COMPENSATION_STEP,
ARRAY_SIZE(android_control_ae_compensation_step),
android_control_ae_compensation_step);
int32_t android_control_max_regions[] = {/*AE*/ 1,/*AWB*/ 1,/*AF*/ 1};
m.addInt32(ANDROID_CONTROL_MAX_REGIONS,
ARRAY_SIZE(android_control_max_regions),
android_control_max_regions);
/* android.jpeg */
int32_t android_jpeg_available_thumbnail_sizes[] = {0, 0, 128, 96};
m.addInt32(ANDROID_JPEG_AVAILABLE_THUMBNAIL_SIZES,
ARRAY_SIZE(android_jpeg_available_thumbnail_sizes),
android_jpeg_available_thumbnail_sizes);
int32_t android_jpeg_max_size[] = {13 * 1024 * 1024}; // 13MB
m.addInt32(ANDROID_JPEG_MAX_SIZE,
ARRAY_SIZE(android_jpeg_max_size),
android_jpeg_max_size);
/* android.lens */
float android_lens_info_available_focal_lengths[] = {1.0};
m.addFloat(ANDROID_LENS_INFO_AVAILABLE_FOCAL_LENGTHS,
ARRAY_SIZE(android_lens_info_available_focal_lengths),
android_lens_info_available_focal_lengths);
/* android.request */
int32_t android_request_max_num_output_streams[] = {0, 3, 1};
m.addInt32(ANDROID_REQUEST_MAX_NUM_OUTPUT_STREAMS,
ARRAY_SIZE(android_request_max_num_output_streams),
android_request_max_num_output_streams);
/* android.scaler */
int32_t android_scaler_available_formats[] = {
HAL_PIXEL_FORMAT_RAW16,
HAL_PIXEL_FORMAT_BLOB,
HAL_PIXEL_FORMAT_RGBA_8888,
HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
// These are handled by YCbCr_420_888
// HAL_PIXEL_FORMAT_YV12,
// HAL_PIXEL_FORMAT_YCrCb_420_SP,
HAL_PIXEL_FORMAT_YCbCr_420_888};
m.addInt32(ANDROID_SCALER_AVAILABLE_FORMATS,
ARRAY_SIZE(android_scaler_available_formats),
android_scaler_available_formats);
int64_t android_scaler_available_jpeg_min_durations[] = {1};
m.addInt64(ANDROID_SCALER_AVAILABLE_JPEG_MIN_DURATIONS,
ARRAY_SIZE(android_scaler_available_jpeg_min_durations),
android_scaler_available_jpeg_min_durations);
int32_t android_scaler_available_jpeg_sizes[] = {640, 480};
m.addInt32(ANDROID_SCALER_AVAILABLE_JPEG_SIZES,
ARRAY_SIZE(android_scaler_available_jpeg_sizes),
android_scaler_available_jpeg_sizes);
float android_scaler_available_max_digital_zoom[] = {1};
m.addFloat(ANDROID_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM,
ARRAY_SIZE(android_scaler_available_max_digital_zoom),
android_scaler_available_max_digital_zoom);
int64_t android_scaler_available_processed_min_durations[] = {1};
m.addInt64(ANDROID_SCALER_AVAILABLE_PROCESSED_MIN_DURATIONS,
ARRAY_SIZE(android_scaler_available_processed_min_durations),
android_scaler_available_processed_min_durations);
int32_t android_scaler_available_processed_sizes[] = {640, 480};
m.addInt32(ANDROID_SCALER_AVAILABLE_PROCESSED_SIZES,
ARRAY_SIZE(android_scaler_available_processed_sizes),
android_scaler_available_processed_sizes);
int64_t android_scaler_available_raw_min_durations[] = {1};
m.addInt64(ANDROID_SCALER_AVAILABLE_RAW_MIN_DURATIONS,
ARRAY_SIZE(android_scaler_available_raw_min_durations),
android_scaler_available_raw_min_durations);
int32_t android_scaler_available_raw_sizes[] = {640, 480};
m.addInt32(ANDROID_SCALER_AVAILABLE_RAW_SIZES,
ARRAY_SIZE(android_scaler_available_raw_sizes),
android_scaler_available_raw_sizes);
/* android.sensor */
int32_t android_sensor_info_active_array_size[] = {0, 0, 640, 480};
m.addInt32(ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE,
ARRAY_SIZE(android_sensor_info_active_array_size),
android_sensor_info_active_array_size);
int32_t android_sensor_info_sensitivity_range[] =
{100, 1600};
m.addInt32(ANDROID_SENSOR_INFO_SENSITIVITY_RANGE,
ARRAY_SIZE(android_sensor_info_sensitivity_range),
android_sensor_info_sensitivity_range);
int64_t android_sensor_info_max_frame_duration[] = {30000000000};
m.addInt64(ANDROID_SENSOR_INFO_MAX_FRAME_DURATION,
ARRAY_SIZE(android_sensor_info_max_frame_duration),
android_sensor_info_max_frame_duration);
float android_sensor_info_physical_size[] = {3.2, 2.4};
m.addFloat(ANDROID_SENSOR_INFO_PHYSICAL_SIZE,
ARRAY_SIZE(android_sensor_info_physical_size),
android_sensor_info_physical_size);
int32_t android_sensor_info_pixel_array_size[] = {640, 480};
m.addInt32(ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE,
ARRAY_SIZE(android_sensor_info_pixel_array_size),
android_sensor_info_pixel_array_size);
int32_t android_sensor_orientation[] = {0};
m.addInt32(ANDROID_SENSOR_ORIENTATION,
ARRAY_SIZE(android_sensor_orientation),
android_sensor_orientation);
/* End of static camera characteristics */
mStaticInfo = clone_camera_metadata(m.get());
return 0;
}
status_t CameraMetadata::readFromParcel(const Parcel& data,
camera_metadata_t** out) {
status_t err = OK;
camera_metadata_t* metadata = NULL;
if (out) {
*out = NULL;
}
// See CameraMetadata::writeToParcel for parcel data layout diagram and explanation.
// arg0 = blobSize (int32)
int32_t blobSizeTmp = -1;
if ((err = data.readInt32(&blobSizeTmp)) != OK) {
ALOGE("%s: Failed to read metadata size (error %d %s)",
__FUNCTION__, err, strerror(-err));
return err;
}
const size_t blobSize = static_cast<size_t>(blobSizeTmp);
const size_t alignment = get_camera_metadata_alignment();
// Special case: zero blob size means zero sized (NULL) metadata.
if (blobSize == 0) {
ALOGV("%s: Read 0-sized metadata", __FUNCTION__);
return OK;
}
if (blobSize <= alignment) {
ALOGE("%s: metadata blob is malformed, blobSize(%zu) should be larger than alignment(%zu)",
__FUNCTION__, blobSize, alignment);
return BAD_VALUE;
}
const size_t metadataSize = blobSize - alignment;
// NOTE: this doesn't make sense to me. shouldn't the blob
// know how big it is? why do we have to specify the size
// to Parcel::readBlob ?
ReadableBlob blob;
// arg1 = metadata (blob)
do {
if ((err = data.readBlob(blobSize, &blob)) != OK) {
ALOGE("%s: Failed to read metadata blob (sized %zu). Possible "
" serialization bug. Error %d %s",
__FUNCTION__, blobSize, err, strerror(-err));
break;
}
// arg2 = offset (blob)
// Must be after blob since we don't know offset until after writeBlob.
int32_t offsetTmp;
if ((err = data.readInt32(&offsetTmp)) != OK) {
ALOGE("%s: Failed to read metadata offsetTmp (error %d %s)",
__FUNCTION__, err, strerror(-err));
break;
}
const size_t offset = static_cast<size_t>(offsetTmp);
if (offset >= alignment) {
ALOGE("%s: metadata offset(%zu) should be less than alignment(%zu)",
__FUNCTION__, blobSize, alignment);
err = BAD_VALUE;
break;
}
const uintptr_t metadataStart = reinterpret_cast<uintptr_t>(blob.data()) + offset;
const camera_metadata_t* tmp =
reinterpret_cast<const camera_metadata_t*>(metadataStart);
ALOGV("%s: alignment is: %zu, metadata start: %p, offset: %zu",
__FUNCTION__, alignment, tmp, offset);
metadata = allocate_copy_camera_metadata_checked(tmp, metadataSize);
if (metadata == NULL) {
// We consider that allocation only fails if the validation
// also failed, therefore the readFromParcel was a failure.
ALOGE("%s: metadata allocation and copy failed", __FUNCTION__);
err = BAD_VALUE;
}
} while(0);
blob.release();
if (out) {
ALOGV("%s: Set out metadata to %p", __FUNCTION__, metadata);
*out = metadata;
} else if (metadata != NULL) {
ALOGV("%s: Freed camera metadata at %p", __FUNCTION__, metadata);
free_camera_metadata(metadata);
}
return err;
}
int MetadataQueue::producer_cancel(const camera2_frame_queue_dst_ops_t *q,
camera_metadata_t *old_buffer) {
free_camera_metadata(old_buffer);
return OK;
}
int MetadataQueue::consumer_free(const camera2_request_queue_src_ops_t *q,
camera_metadata_t *old_buffer) {
free_camera_metadata(old_buffer);
return OK;
}