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comparison: dom/camera/GonkCameraSource.h
dom/camera/GonkCameraSource.h
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| -1:000000000000 | 0:f9f0e4b4a986 |
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| 1 /* | |
| 2 * Copyright (C) 2009 The Android Open Source Project | |
| 3 * | |
| 4 * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 5 * you may not use this file except in compliance with the License. | |
| 6 * You may obtain a copy of the License at | |
| 7 * | |
| 8 * http://www.apache.org/licenses/LICENSE-2.0 | |
| 9 * | |
| 10 * Unless required by applicable law or agreed to in writing, software | |
| 11 * distributed under the License is distributed on an "AS IS" BASIS, | |
| 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 13 * See the License for the specific language governing permissions and | |
| 14 * limitations under the License. | |
| 15 */ | |
| 16 | |
| 17 #ifndef GONK_CAMERA_SOURCE_H_ | |
| 18 | |
| 19 #define GONK_CAMERA_SOURCE_H_ | |
| 20 | |
| 21 #include <media/stagefright/MediaBuffer.h> | |
| 22 #include <media/stagefright/MediaSource.h> | |
| 23 #include <camera/CameraParameters.h> | |
| 24 #include <utils/List.h> | |
| 25 #include <utils/RefBase.h> | |
| 26 #include <utils/String16.h> | |
| 27 | |
| 28 #include "GonkCameraHwMgr.h" | |
| 29 | |
| 30 namespace android { | |
| 31 | |
| 32 class IMemory; | |
| 33 | |
| 34 class GonkCameraSource : public MediaSource, public MediaBufferObserver { | |
| 35 public: | |
| 36 | |
| 37 static GonkCameraSource *Create(const sp<GonkCameraHardware>& aCameraHw, | |
| 38 Size videoSize, | |
| 39 int32_t frameRate, | |
| 40 bool storeMetaDataInVideoBuffers = false); | |
| 41 | |
| 42 virtual ~GonkCameraSource(); | |
| 43 | |
| 44 virtual status_t start(MetaData *params = NULL); | |
| 45 virtual status_t stop() { return reset(); } | |
| 46 virtual status_t read( | |
| 47 MediaBuffer **buffer, const ReadOptions *options = NULL); | |
| 48 | |
| 49 /** | |
| 50 * Check whether a GonkCameraSource object is properly initialized. | |
| 51 * Must call this method before stop(). | |
| 52 * @return OK if initialization has successfully completed. | |
| 53 */ | |
| 54 virtual status_t initCheck() const; | |
| 55 | |
| 56 /** | |
| 57 * Returns the MetaData associated with the GonkCameraSource, | |
| 58 * including: | |
| 59 * kKeyColorFormat: YUV color format of the video frames | |
| 60 * kKeyWidth, kKeyHeight: dimension (in pixels) of the video frames | |
| 61 * kKeySampleRate: frame rate in frames per second | |
| 62 * kKeyMIMEType: always fixed to be MEDIA_MIMETYPE_VIDEO_RAW | |
| 63 */ | |
| 64 virtual sp<MetaData> getFormat(); | |
| 65 | |
| 66 /** | |
| 67 * Tell whether this camera source stores meta data or real YUV | |
| 68 * frame data in video buffers. | |
| 69 * | |
| 70 * @return true if meta data is stored in the video | |
| 71 * buffers; false if real YUV data is stored in | |
| 72 * the video buffers. | |
| 73 */ | |
| 74 bool isMetaDataStoredInVideoBuffers() const; | |
| 75 | |
| 76 virtual void signalBufferReturned(MediaBuffer* buffer); | |
| 77 | |
| 78 protected: | |
| 79 | |
| 80 enum CameraFlags { | |
| 81 FLAGS_SET_CAMERA = 1L << 0, | |
| 82 FLAGS_HOT_CAMERA = 1L << 1, | |
| 83 }; | |
| 84 | |
| 85 int32_t mCameraFlags; | |
| 86 Size mVideoSize; | |
| 87 int32_t mNumInputBuffers; | |
| 88 int32_t mVideoFrameRate; | |
| 89 int32_t mColorFormat; | |
| 90 status_t mInitCheck; | |
| 91 | |
| 92 sp<MetaData> mMeta; | |
| 93 | |
| 94 int64_t mStartTimeUs; | |
| 95 int32_t mNumFramesReceived; | |
| 96 int64_t mLastFrameTimestampUs; | |
| 97 bool mStarted; | |
| 98 int32_t mNumFramesEncoded; | |
| 99 | |
| 100 // Time between capture of two frames. | |
| 101 int64_t mTimeBetweenFrameCaptureUs; | |
| 102 | |
| 103 GonkCameraSource(const sp<GonkCameraHardware>& aCameraHw, | |
| 104 Size videoSize, int32_t frameRate, | |
| 105 bool storeMetaDataInVideoBuffers = false); | |
| 106 | |
| 107 virtual int startCameraRecording(); | |
| 108 virtual void stopCameraRecording(); | |
| 109 virtual void releaseRecordingFrame(const sp<IMemory>& frame); | |
| 110 | |
| 111 // Returns true if need to skip the current frame. | |
| 112 // Called from dataCallbackTimestamp. | |
| 113 virtual bool skipCurrentFrame(int64_t timestampUs) {return false;} | |
| 114 | |
| 115 friend class GonkCameraSourceListener; | |
| 116 // Callback called when still camera raw data is available. | |
| 117 virtual void dataCallback(int32_t msgType, const sp<IMemory> &data) {} | |
| 118 | |
| 119 virtual void dataCallbackTimestamp(int64_t timestampUs, int32_t msgType, | |
| 120 const sp<IMemory> &data); | |
| 121 | |
| 122 private: | |
| 123 | |
| 124 Mutex mLock; | |
| 125 Condition mFrameAvailableCondition; | |
| 126 Condition mFrameCompleteCondition; | |
| 127 List<sp<IMemory> > mFramesReceived; | |
| 128 List<sp<IMemory> > mFramesBeingEncoded; | |
| 129 List<int64_t> mFrameTimes; | |
| 130 | |
| 131 int64_t mFirstFrameTimeUs; | |
| 132 int32_t mNumFramesDropped; | |
| 133 int32_t mNumGlitches; | |
| 134 int64_t mGlitchDurationThresholdUs; | |
| 135 bool mCollectStats; | |
| 136 bool mIsMetaDataStoredInVideoBuffers; | |
| 137 sp<GonkCameraHardware> mCameraHw; | |
| 138 | |
| 139 void releaseQueuedFrames(); | |
| 140 void releaseOneRecordingFrame(const sp<IMemory>& frame); | |
| 141 | |
| 142 status_t init(Size videoSize, int32_t frameRate, | |
| 143 bool storeMetaDataInVideoBuffers); | |
| 144 status_t isCameraColorFormatSupported(const CameraParameters& params); | |
| 145 status_t configureCamera(CameraParameters* params, | |
| 146 int32_t width, int32_t height, | |
| 147 int32_t frameRate); | |
| 148 | |
| 149 status_t checkVideoSize(const CameraParameters& params, | |
| 150 int32_t width, int32_t height); | |
| 151 | |
| 152 status_t checkFrameRate(const CameraParameters& params, | |
| 153 int32_t frameRate); | |
| 154 | |
| 155 void releaseCamera(); | |
| 156 status_t reset(); | |
| 157 | |
| 158 GonkCameraSource(const GonkCameraSource &); | |
| 159 GonkCameraSource &operator=(const GonkCameraSource &); | |
| 160 }; | |
| 161 | |
| 162 } // namespace android | |
| 163 | |
| 164 #endif // GONK_CAMERA_SOURCE_H_ |
