static jboolean CameraMetadata_isEmpty(JNIEnv *env, jobject thiz) {
ALOGV("%s", __FUNCTION__);
CameraMetadata* metadata = CameraMetadata_getPointerThrow(env, thiz);
if (metadata == NULL) {
ALOGW("%s: Returning early due to exception being thrown",
__FUNCTION__);
return JNI_TRUE; // actually throws java exc.
}
jboolean empty = metadata->isEmpty();
ALOGV("%s: Empty returned %d, entry count was %zu",
__FUNCTION__, empty, metadata->entryCount());
return empty;
}
void FrameProcessorBase::processNewFrames(const sp<CameraDeviceBase> &device) {
status_t res;
ATRACE_CALL();
CameraMetadata frame;
ALOGV("%s: Camera %d: Process new frames", __FUNCTION__, device->getId());
while ( (res = device->getNextFrame(&frame)) == OK) {
camera_metadata_entry_t entry;
entry = frame.find(ANDROID_REQUEST_FRAME_COUNT);
if (entry.count == 0) {
ALOGE("%s: Camera %d: Error reading frame number",
__FUNCTION__, device->getId());
break;
}
ATRACE_INT("cam2_frame", entry.data.i32[0]);
if (!processSingleFrame(frame, device)) {
break;
}
if (!frame.isEmpty()) {
Mutex::Autolock al(mLastFrameMutex);
mLastFrame.acquire(frame);
}
}
if (res != NOT_ENOUGH_DATA) {
ALOGE("%s: Camera %d: Error getting next frame: %s (%d)",
__FUNCTION__, device->getId(), strerror(-res), res);
return;
}
return;
}
bool FrameProcessorBase::processSingleFrame(CameraMetadata &frame,
const sp<CameraDeviceBase> &device) {
ALOGV("%s: Camera %d: Process single frame (is empty? %d)",
__FUNCTION__, device->getId(), frame.isEmpty());
return processListeners(frame, device) == OK;
}