标题: 200M、300M usb camera 拍照问题 [打印本页] 作者: 倾风圆阙 时间: 2017-2-10 18:23 标题: 200M、300M usb camera 拍照问题 usb 摄像头问题：
1、接720P的摄像头，使用系统自带的camera应用，拍照支持，录像不支持；
2、接1080P的摄像头，拍照花屏，录像不支持；
3、接2048*1536像素的摄像头，拍照“打开camera失败”，录像不支持。
4、安装了从网上下载的其它拍照应用，如：poco相机、camera360等，拍照和录像测试结果与上相同。
我们实际应用中想接500Musb摄像头，现在200M就已不支持，问题该怎么解决？
/*
* Copyright (C) 2009 The Android Open Source Project
*
* 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.
*/
if (camera == 0) {
mCamera = Camera::connect(cameraId, clientName, clientUid);
if (mCamera == 0) return -EBUSY;
mCameraFlags &= ~FLAGS_HOT_CAMERA;
} else {
// We get the proxy from Camera, not ICamera. We need to get the proxy
// to the remote Camera owned by the application. Here mCamera is a
// local Camera object created by us. We cannot use the proxy from
// mCamera here.
mCamera = Camera::create(camera);
if (mCamera == 0) return -EBUSY;
mCameraRecordingProxy = proxy;
mCameraFlags |= FLAGS_HOT_CAMERA;
mDeathNotifier = new DeathNotifier();
// isBinderAlive needs linkToDeath to work.
mCameraRecordingProxy->asBinder()->linkToDeath(mDeathNotifier);
}
mCamera->lock();
return OK;
}
/*
* 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) {
ALOGV("isVideoSizeSupported");
for (size_t i = 0; i < supportedSizes.size(); ++i) {
if (width == supportedSizes.width &&
height == supportedSizes.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) {
ALOGD("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 CameraSource::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 CameraSource::configureCamera(
CameraParameters* params,
int32_t width, int32_t height,
int32_t frameRate) {
ALOGV("configureCamera");
Vector<Size> sizes;
bool isSetVideoSizeSupportedByCamera = true;
getSupportedVideoSizes(*params, &isSetVideoSizeSupportedByCamera, sizes);
bool isCameraParamChanged = false;
if (width != -1 && height != -1) {
if (!isVideoSizeSupported(width, height, sizes)) {
ALOGE("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.
ALOGE("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.
}
// 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.
String8 s = params->flatten();
if (OK != mCamera->setParameters(s)) {
ALOGE("Could not change settings."
" Someone else is using camera %p?", mCamera.get());
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 CameraSource::checkVideoSize(
const CameraParameters& params,
int32_t width, int32_t height) {
ALOGV("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) {
ALOGE("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) {
ALOGE("Failed to set video frame size to %dx%d. "
"The actual video size is %dx%d ", width, height,
frameWidthActual, frameHeightActual);
return UNKNOWN_ERROR;
}
}
/*
* 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 CameraSource::checkFrameRate(
const CameraParameters& params,
int32_t frameRate) {
// Check the actual video frame rate against the target/requested
// video frame rate.
if (frameRate != -1 && (frameRateActual - frameRate) != 0) {
ALOGE("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 CameraSource to 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 CameraSource::init(
const sp<ICamera>& camera,
const sp<ICameraRecordingProxy>& proxy,
int32_t cameraId,
const String16& clientName,
uid_t clientUid,
Size videoSize,
int32_t frameRate,
bool storeMetaDataInVideoBuffers) {
if ((err = isCameraAvailable(camera, proxy, cameraId,
clientName, clientUid)) != OK) {
ALOGE("Camera connection could not be established.");
return err;
}
CameraParameters params(mCamera->getParameters());
if ((err = isCameraColorFormatSupported(params)) != OK) {
return err;
}
// Set the camera to use the requested video frame size
// and/or frame rate.
if ((err = configureCamera(¶ms,
videoSize.width, videoSize.height,
frameRate))) {
return err;
}
// Check on video frame size and frame rate.
CameraParameters newCameraParams(mCamera->getParameters());
if ((err = checkVideoSize(newCameraParams,
videoSize.width, videoSize.height)) != OK) {
return err;
}
if ((err = checkFrameRate(newCameraParams, frameRate)) != OK) {
return err;
}
// Set the preview display. Skip this if mSurface is null because
// applications may already set a surface to the camera.
if (mSurface != NULL) {
// This CHECK is good, since we just passed the lock/unlock
// check earlier by calling mCamera->setParameters().
CHECK_EQ((status_t)OK, mCamera->setPreviewTarget(mSurface));
}
// By default, do not store metadata in video buffers
mIsMetaDataStoredInVideoBuffers = false;
mCamera->storeMetaDataInBuffers(false);
if (storeMetaDataInVideoBuffers) {
if (OK == mCamera->storeMetaDataInBuffers(true)) {
mIsMetaDataStoredInVideoBuffers = true;
}
}
// 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;
}
CameraSource::~CameraSource() {
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.
releaseCamera();
}
}
status_t CameraSource::startCameraRecording() {
ALOGV("startCameraRecording");
// Reset the identity to the current thread because media server owns the
// camera and recording is started by the applications. The applications
// will connect to the camera in ICameraRecordingProxy::startRecording.
int64_t token = IPCThreadState::self()->clearCallingIdentity();
status_t err;
if (mNumInputBuffers > 0) {
err = mCamera->sendCommand(
CAMERA_CMD_SET_VIDEO_BUFFER_COUNT, mNumInputBuffers, 0);
// This could happen for CameraHAL1 clients; thus the failure is
// not a fatal error
if (err != OK) {
ALOGW("Failed to set video buffer count to %d due to %d",
mNumInputBuffers, err);
}
}
err = OK;
if (mCameraFlags & FLAGS_HOT_CAMERA) {
mCamera->unlock();
mCamera.clear();
if ((err = mCameraRecordingProxy->startRecording(
new ProxyListener(this))) != OK) {
ALOGE("Failed to start recording, received error: %s (%d)",
strerror(-err), err);
}
} else {
mCamera->setListener(new CameraSourceListener(this));
mCamera->startRecording();
if (!mCamera->recordingEnabled()) {
err = -EINVAL;
ALOGE("Failed to start recording");
}
}
IPCThreadState::self()->restoreCallingIdentity(token);
return err;
}
status_t CameraSource::start(MetaData *meta) {
ALOGV("start");
CHECK(!mStarted);
if (mInitCheck != OK) {
ALOGE("CameraSource is not initialized yet");
return mInitCheck;
}
if (mNumFramesReceived > 0) {
CHECK(timestampUs > mLastFrameTimestampUs);
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;