| /* |
| * 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. |
| */ |
| |
| #include <sys/time.h> |
| |
| #undef NDEBUG |
| #include <assert.h> |
| |
| #include <OMX_Component.h> |
| |
| #include <binder/IServiceManager.h> |
| #include <media/stagefright/CameraSource.h> |
| #include <media/stagefright/MediaErrors.h> |
| #include <media/stagefright/MetaData.h> |
| #include <ui/ICameraClient.h> |
| #include <ui/ICameraService.h> |
| #include <ui/Overlay.h> |
| #include <utils/String16.h> |
| |
| namespace android { |
| |
| class CameraBuffer : public MediaBuffer { |
| public: |
| CameraBuffer(const sp<IMemory> &frame) |
| : MediaBuffer(frame->pointer(), frame->size()), |
| mFrame(frame) { |
| } |
| |
| sp<IMemory> releaseFrame() { |
| sp<IMemory> frame = mFrame; |
| mFrame.clear(); |
| return frame; |
| } |
| |
| private: |
| sp<IMemory> mFrame; |
| }; |
| |
| class CameraSourceClient : public BnCameraClient { |
| public: |
| CameraSourceClient() |
| : mSource(NULL) { |
| } |
| |
| virtual void notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2) { |
| assert(mSource != NULL); |
| mSource->notifyCallback(msgType, ext1, ext2); |
| } |
| |
| virtual void dataCallback(int32_t msgType, const sp<IMemory> &data) { |
| assert(mSource != NULL); |
| mSource->dataCallback(msgType, data); |
| } |
| |
| void setCameraSource(CameraSource *source) { |
| mSource = source; |
| } |
| |
| private: |
| CameraSource *mSource; |
| }; |
| |
| class DummySurface : public BnSurface { |
| public: |
| DummySurface() {} |
| |
| virtual status_t registerBuffers(const BufferHeap &buffers) { |
| return OK; |
| } |
| |
| virtual void postBuffer(ssize_t offset) { |
| } |
| |
| virtual void unregisterBuffers() { |
| } |
| |
| virtual sp<OverlayRef> createOverlay( |
| uint32_t w, uint32_t h, int32_t format) { |
| return NULL; |
| } |
| }; |
| |
| // static |
| CameraSource *CameraSource::Create() { |
| sp<IServiceManager> sm = defaultServiceManager(); |
| |
| sp<ICameraService> service = |
| interface_cast<ICameraService>( |
| sm->getService(String16("media.camera"))); |
| |
| sp<CameraSourceClient> client = new CameraSourceClient; |
| sp<ICamera> camera = service->connect(client); |
| |
| CameraSource *source = new CameraSource(camera, client); |
| client->setCameraSource(source); |
| |
| return source; |
| } |
| |
| CameraSource::CameraSource( |
| const sp<ICamera> &camera, const sp<ICameraClient> &client) |
| : mCamera(camera), |
| mCameraClient(client), |
| mNumFrames(0), |
| mStarted(false) { |
| printf("params: \"%s\"\n", mCamera->getParameters().string()); |
| } |
| |
| CameraSource::~CameraSource() { |
| if (mStarted) { |
| stop(); |
| } |
| |
| mCamera->disconnect(); |
| } |
| |
| status_t CameraSource::start(MetaData *) { |
| assert(!mStarted); |
| |
| status_t err = mCamera->lock(); |
| assert(err == OK); |
| |
| err = mCamera->setPreviewDisplay(new DummySurface); |
| assert(err == OK); |
| mCamera->setPreviewCallbackFlag(1); |
| mCamera->startPreview(); |
| assert(err == OK); |
| |
| mStarted = true; |
| |
| return OK; |
| } |
| |
| status_t CameraSource::stop() { |
| assert(mStarted); |
| |
| mCamera->stopPreview(); |
| mCamera->unlock(); |
| |
| mStarted = false; |
| |
| return OK; |
| } |
| |
| sp<MetaData> CameraSource::getFormat() { |
| sp<MetaData> meta = new MetaData; |
| meta->setCString(kKeyMIMEType, "video/raw"); |
| meta->setInt32(kKeyColorFormat, OMX_COLOR_FormatYUV420SemiPlanar); |
| meta->setInt32(kKeyWidth, 480); |
| meta->setInt32(kKeyHeight, 320); |
| |
| return meta; |
| } |
| |
| status_t CameraSource::read( |
| MediaBuffer **buffer, const ReadOptions *options) { |
| assert(mStarted); |
| |
| *buffer = NULL; |
| |
| int64_t seekTimeUs; |
| if (options && options->getSeekTo(&seekTimeUs)) { |
| return ERROR_UNSUPPORTED; |
| } |
| |
| sp<IMemory> frame; |
| |
| { |
| Mutex::Autolock autoLock(mLock); |
| while (mFrames.empty()) { |
| mFrameAvailableCondition.wait(mLock); |
| } |
| |
| frame = *mFrames.begin(); |
| mFrames.erase(mFrames.begin()); |
| } |
| |
| int count = mNumFrames++; |
| |
| *buffer = new CameraBuffer(frame); |
| |
| (*buffer)->meta_data()->clear(); |
| (*buffer)->meta_data()->setInt32(kKeyTimeScale, 15); |
| (*buffer)->meta_data()->setInt32(kKeyTimeUnits, count); |
| |
| (*buffer)->add_ref(); |
| (*buffer)->setObserver(this); |
| |
| return OK; |
| } |
| |
| void CameraSource::notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2) { |
| printf("notifyCallback %d, %d, %d\n", msgType, ext1, ext2); |
| } |
| |
| void CameraSource::dataCallback(int32_t msgType, const sp<IMemory> &data) { |
| Mutex::Autolock autoLock(mLock); |
| |
| mFrames.push_back(data); |
| mFrameAvailableCondition.signal(); |
| } |
| |
| void CameraSource::signalBufferReturned(MediaBuffer *_buffer) { |
| CameraBuffer *buffer = static_cast<CameraBuffer *>(_buffer); |
| |
| mCamera->releaseRecordingFrame(buffer->releaseFrame()); |
| |
| buffer->setObserver(NULL); |
| buffer->release(); |
| buffer = NULL; |
| } |
| |
| } // namespace android |