void CameraHardwareStub::initDefaultParameters()
{
CameraParameters p;
p.setPreviewSize(176, 144);
p.setPreviewFrameRate(15);
p.setPreviewFormat("yuv422sp");
p.setPictureSize(kCannedJpegWidth, kCannedJpegHeight);
p.setPictureFormat("jpeg");
if (setParameters(p) != NO_ERROR) {
LOGE("Failed to set default parameters?!");
}
}
void CameraHardware::initDefaultParameters()
{
CameraParameters p;
p.setPreviewSize(160, 120);
p.setPreviewFrameRate(15);
p.setPreviewFormat("rgb565");
p.setPictureSize(640, 480);
p.setPictureFormat("rgb565");
if (setParameters(p) != NO_ERROR) {
LOGE("Failed to set default parameters?!");
}
}
void CameraHardwareStub::initDefaultParameters()
{
CameraParameters p;
p.set(CameraParameters::KEY_SUPPORTED_PREVIEW_SIZES, "320x240");
p.setPreviewSize(320, 240);
p.setPreviewFrameRate(15);
p.setPreviewFormat(CameraParameters::PIXEL_FORMAT_YUV420SP);
p.set(CameraParameters::KEY_SUPPORTED_PICTURE_SIZES, "320x240");
p.setPictureSize(320, 240);
p.setPictureFormat(CameraParameters::PIXEL_FORMAT_JPEG);
if (setParameters(p) != NO_ERROR) {
LOGE("Failed to set default parameters?!");
}
}
NS_IMETHODIMP
GonkCameraInputStream::Init(nsACString& aContentType, nsCaptureParams* aParams)
{
if (XRE_GetProcessType() != GeckoProcessType_Default)
return NS_ERROR_NOT_IMPLEMENTED;
mContentType = aContentType;
mWidth = aParams->width;
mHeight = aParams->height;
mCamera = aParams->camera;
PRUint32 maxNumCameras = getNumberOfCameras();
if (maxNumCameras == 0)
return NS_ERROR_FAILURE;
if (mCamera >= maxNumCameras)
mCamera = 0;
mHardware = CameraHardwareInterface::openCamera(mCamera);
if (!mHardware)
return NS_ERROR_FAILURE;
mHardware->setCallbacks(NULL, GonkCameraInputStream::DataCallback, NULL, this);
mHardware->enableMsgType(CAMERA_MSG_PREVIEW_FRAME);
CameraParameters params = mHardware->getParameters();
printf_stderr("Preview format : %s\n", params.get(params.KEY_SUPPORTED_PREVIEW_FORMATS));
Vector<Size> previewSizes;
params.getSupportedPreviewSizes(previewSizes);
// find the available preview size closest to the requested size.
PRUint32 minSizeDelta = PR_UINT32_MAX;
PRUint32 bestWidth = mWidth;
PRUint32 bestHeight = mHeight;
for (PRUint32 i = 0; i < previewSizes.size(); i++) {
Size size = previewSizes[i];
PRUint32 delta = abs(size.width * size.height - mWidth * mHeight);
if (delta < minSizeDelta) {
minSizeDelta = delta;
bestWidth = size.width;
bestHeight = size.height;
}
}
mWidth = bestWidth;
mHeight = bestHeight;
params.setPreviewSize(mWidth, mHeight);
// try to set preferred image format
params.setPreviewFormat("yuv420p");
params.setPreviewFrameRate(mFps);
mHardware->setParameters(params);
params = mHardware->getParameters();
mFps = params.getPreviewFrameRate();
mIs420p = !strcmp(params.getPreviewFormat(), "yuv420p");
mHardware->startPreview();
mClosed = false;
return NS_OK;
}
status_t TVINDevice::setParameters(CameraParameters& params)
{
int w, h;
int framerate, local_framerate;
int max_zoom, zoom, max_fps, min_fps;
char tmp[128];
Mutex::Autolock lock(mLock);
max_zoom = params.getInt(CameraParameters::KEY_MAX_ZOOM);
zoom = params.getInt(CameraParameters::KEY_ZOOM);
if (zoom > max_zoom) {
FLOGE("Invalid zoom setting, zoom %d, max zoom %d", zoom, max_zoom);
return BAD_VALUE;
}
if (!((strcmp(params.getPreviewFormat(), "yuv420sp") == 0) ||
(strcmp(params.getPreviewFormat(), "yuv420p") == 0) ||
(strcmp(params.getPreviewFormat(), "yuv422i-yuyv") == 0))) {
FLOGE("Only yuv420sp or yuv420pis supported, but input format is %s",
params.getPreviewFormat());
return BAD_VALUE;
}
if (strcmp(params.getPictureFormat(), "jpeg") != 0) {
FLOGE("Only jpeg still pictures are supported");
return BAD_VALUE;
}
params.getPreviewSize(&w, &h);
sprintf(tmp, "%dx%d", w, h);
FLOGI("Set preview size: %s", tmp);
if (strstr(mSupportedPreviewSizes, tmp) == NULL) {
FLOGE("The preview size w %d, h %d is not corrected", w, h);
return BAD_VALUE;
}
params.getPictureSize(&w, &h);
sprintf(tmp, "%dx%d", w, h);
FLOGI("Set picture size: %s", tmp);
if (strstr(mSupportedPictureSizes, tmp) == NULL) {
FLOGE("The picture size w %d, h %d is not corrected", w, h);
return BAD_VALUE;
}
local_framerate = mParams.getPreviewFrameRate();
FLOGI("get local frame rate:%d FPS", local_framerate);
if ((local_framerate > 30) || (local_framerate < 0)) {
FLOGE("The framerate is not corrected");
local_framerate = 15;
}
framerate = params.getPreviewFrameRate();
FLOGI("Set frame rate:%d FPS", framerate);
if ((framerate > 30) || (framerate < 0)) {
FLOGE("The framerate is not corrected");
return BAD_VALUE;
}
else if (local_framerate != framerate) {
if (framerate == 15) {
params.set(CameraParameters::KEY_PREVIEW_FPS_RANGE, "12000,17000");
}
else if (framerate == 30) {
params.set(CameraParameters::KEY_PREVIEW_FPS_RANGE, "25000,33000");
}
}
int actual_fps = 15;
params.getPreviewFpsRange(&min_fps, &max_fps);
FLOGI("FPS range: %d - %d", min_fps, max_fps);
if ((max_fps < 1000) || (min_fps < 1000) || (max_fps > 33000) ||
(min_fps > 33000)) {
FLOGE("The fps range from %d to %d is error", min_fps, max_fps);
return BAD_VALUE;
}
actual_fps = min_fps > 15000 ? 30 : 15;
FLOGI("setParameters: actual_fps=%d", actual_fps);
params.setPreviewFrameRate(actual_fps);
mParams = params;
return NO_ERROR;
}