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author | Nipun Kwatra <nkwatra@google.com> | 2010-07-20 11:04:49 -0700 |
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committer | Android (Google) Code Review <android-gerrit@google.com> | 2010-07-20 11:04:49 -0700 |
commit | 385695764189477e963a749a5f107f6eaeb9c5f2 (patch) | |
tree | 205b05314b10ed1b590dc234a07edd880de7dff0 /include | |
parent | fbfe57ba4403ad759a0ebd895914ff506a01b699 (diff) | |
parent | 65e7e6facda89927cb26594b3b65ae81b3235ebc (diff) | |
download | frameworks_av-385695764189477e963a749a5f107f6eaeb9c5f2.zip frameworks_av-385695764189477e963a749a5f107f6eaeb9c5f2.tar.gz frameworks_av-385695764189477e963a749a5f107f6eaeb9c5f2.tar.bz2 |
Merge "Adding support for timelapse capture using still camera's takepicture. Also moving entire implementation into a new class CameraSourceTimeLapse which inherits from CameraSource."
Diffstat (limited to 'include')
-rw-r--r-- | include/media/stagefright/CameraSource.h | 50 | ||||
-rw-r--r-- | include/media/stagefright/CameraSourceTimeLapse.h | 129 |
2 files changed, 154 insertions, 25 deletions
diff --git a/include/media/stagefright/CameraSource.h b/include/media/stagefright/CameraSource.h index fd30ba5..ed5f09f 100644 --- a/include/media/stagefright/CameraSource.h +++ b/include/media/stagefright/CameraSource.h @@ -22,7 +22,6 @@ #include <media/stagefright/MediaSource.h> #include <utils/List.h> #include <utils/RefBase.h> -#include <utils/threads.h> namespace android { @@ -35,10 +34,6 @@ public: static CameraSource *Create(); static CameraSource *CreateFromCamera(const sp<Camera> &camera); - void enableTimeLapseMode( - int64_t timeBetweenTimeLapseFrameCaptureUs, int32_t videoFrameRate); - void disableTimeLapseMode(); - virtual ~CameraSource(); virtual status_t start(MetaData *params = NULL); @@ -51,12 +46,34 @@ public: virtual void signalBufferReturned(MediaBuffer* buffer); -private: - friend class CameraSourceListener; - +protected: sp<Camera> mCamera; sp<MetaData> mMeta; + int64_t mStartTimeUs; + int32_t mNumFramesReceived; + int64_t mLastFrameTimestampUs; + bool mStarted; + + CameraSource(const sp<Camera> &camera); + + virtual void startCameraRecording(); + virtual void stopCameraRecording(); + virtual void releaseRecordingFrame(const sp<IMemory>& frame); + + // Returns true if need to skip the current frame. + // Called from dataCallbackTimestamp. + virtual bool skipCurrentFrame(int64_t timestampUs) {return false;} + + // Callback called when still camera raw data is available. + virtual void dataCallback(int32_t msgType, const sp<IMemory> &data) {} + + virtual void dataCallbackTimestamp(int64_t timestampUs, int32_t msgType, + const sp<IMemory> &data); + +private: + friend class CameraSourceListener; + Mutex mLock; Condition mFrameAvailableCondition; Condition mFrameCompleteCondition; @@ -64,29 +81,12 @@ private: List<sp<IMemory> > mFramesBeingEncoded; List<int64_t> mFrameTimes; - int64_t mStartTimeUs; int64_t mFirstFrameTimeUs; - int64_t mLastFrameTimestampUs; - int32_t mNumFramesReceived; int32_t mNumFramesEncoded; int32_t mNumFramesDropped; int32_t mNumGlitches; int64_t mGlitchDurationThresholdUs; bool mCollectStats; - bool mStarted; - - // Time between capture of two frames during time lapse recording - // Negative value indicates that timelapse is disabled. - int64_t mTimeBetweenTimeLapseFrameCaptureUs; - // Time between two frames in final video (1/frameRate) - int64_t mTimeBetweenTimeLapseVideoFramesUs; - // Real timestamp of the last encoded time lapse frame - int64_t mLastTimeLapseFrameRealTimestampUs; - - CameraSource(const sp<Camera> &camera); - - void dataCallbackTimestamp( - int64_t timestampUs, int32_t msgType, const sp<IMemory> &data); void releaseQueuedFrames(); void releaseOneRecordingFrame(const sp<IMemory>& frame); diff --git a/include/media/stagefright/CameraSourceTimeLapse.h b/include/media/stagefright/CameraSourceTimeLapse.h new file mode 100644 index 0000000..3c96e56 --- /dev/null +++ b/include/media/stagefright/CameraSourceTimeLapse.h @@ -0,0 +1,129 @@ +/* + * Copyright (C) 2010 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. + */ + +#ifndef CAMERA_SOURCE_TIME_LAPSE_H_ + +#define CAMERA_SOURCE_TIME_LAPSE_H_ + +#include <pthread.h> + +#include <utils/RefBase.h> +#include <utils/threads.h> + +namespace android { + +class ICamera; +class IMemory; +class ISurface; +class Camera; + +class CameraSourceTimeLapse : public CameraSource { +public: + static CameraSourceTimeLapse *Create(bool useStillCameraForTimeLapse, + int64_t timeBetweenTimeLapseFrameCaptureUs, + int32_t videoFrameRate); + + static CameraSourceTimeLapse *CreateFromCamera(const sp<Camera> &camera, + bool useStillCameraForTimeLapse, + int64_t timeBetweenTimeLapseFrameCaptureUs, + int32_t videoFrameRate); + + virtual ~CameraSourceTimeLapse(); + +private: + // If true, will use still camera takePicture() for time lapse frames + // If false, will use the videocamera frames instead. + bool mUseStillCameraForTimeLapse; + + // Time between capture of two frames during time lapse recording + // Negative value indicates that timelapse is disabled. + int64_t mTimeBetweenTimeLapseFrameCaptureUs; + + // Time between two frames in final video (1/frameRate) + int64_t mTimeBetweenTimeLapseVideoFramesUs; + + // Real timestamp of the last encoded time lapse frame + int64_t mLastTimeLapseFrameRealTimestampUs; + + // Thread id of thread which takes still picture and sleeps in a loop. + pthread_t mThreadTimeLapse; + + // Variable set in dataCallbackTimestamp() to help skipCurrentFrame() + // to know if current frame needs to be skipped. + bool mSkipCurrentFrame; + + CameraSourceTimeLapse(const sp<Camera> &camera, + bool useStillCameraForTimeLapse, + int64_t timeBetweenTimeLapseFrameCaptureUs, + int32_t videoFrameRate); + + // For still camera case starts a thread which calls camera's takePicture() + // in a loop. For video camera case, just starts the camera's video recording. + virtual void startCameraRecording(); + + // For still camera case joins the thread created in startCameraRecording(). + // For video camera case, just stops the camera's video recording. + virtual void stopCameraRecording(); + + // For still camera case don't need to do anything as memory is locally + // allocated with refcounting. + // For video camera case just tell the camera to release the frame. + virtual void releaseRecordingFrame(const sp<IMemory>& frame); + + // mSkipCurrentFrame is set to true in dataCallbackTimestamp() if the current + // frame needs to be skipped and this function just returns the value of mSkipCurrentFrame. + virtual bool skipCurrentFrame(int64_t timestampUs); + + // Handles the callback to handle raw frame data from the still camera. + // Creates a copy of the frame data as the camera can reuse the frame memory + // once this callback returns. The function also sets a new timstamp corresponding + // to one frame time ahead of the last encoded frame's time stamp. It then + // calls dataCallbackTimestamp() of the base class with the copied data and the + // modified timestamp, which will think that it recieved the frame from a video + // camera and proceed as usual. + virtual void dataCallback(int32_t msgType, const sp<IMemory> &data); + + // In the video camera case calls skipFrameAndModifyTimeStamp() to modify + // timestamp and set mSkipCurrentFrame. + // Then it calls the base CameraSource::dataCallbackTimestamp() + virtual void dataCallbackTimestamp(int64_t timestampUs, int32_t msgType, + const sp<IMemory> &data); + + // When video camera is used for time lapse capture, returns true + // until enough time has passed for the next time lapse frame. When + // the frame needs to be encoded, it returns false and also modifies + // the time stamp to be one frame time ahead of the last encoded + // frame's time stamp. + bool skipFrameAndModifyTimeStamp(int64_t *timestampUs); + + // Wrapper to enter threadTimeLapseEntry() + static void *ThreadTimeLapseWrapper(void *me); + + // Runs a loop which sleeps until a still picture is required + // and then calls mCamera->takePicture() to take the still picture. + // Used only in the case mUseStillCameraForTimeLapse = true. + void threadTimeLapseEntry(); + + // Creates a copy of source_data into a new memory of final type MemoryBase. + sp<IMemory> createIMemoryCopy(const sp<IMemory> &source_data); + + CameraSourceTimeLapse(const CameraSourceTimeLapse &); + CameraSourceTimeLapse &operator=(const CameraSourceTimeLapse &); +}; + +} // namespace android + +#endif // CAMERA_SOURCE_TIME_LAPSE_H_ |