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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 STAGEFRIGHT_RECORDER_H_
     18 
     19 #define STAGEFRIGHT_RECORDER_H_
     20 
     21 #include <media/MediaRecorderBase.h>
     22 #include <utils/String8.h>
     23 
     24 namespace android {
     25 
     26 class Camera;
     27 struct MediaSource;
     28 struct MediaWriter;
     29 struct AudioSource;
     30 class MediaProfiles;
     31 
     32 struct StagefrightRecorder : public MediaRecorderBase {
     33     StagefrightRecorder();
     34     virtual ~StagefrightRecorder();
     35 
     36     virtual status_t init();
     37     virtual status_t setAudioSource(audio_source as);
     38     virtual status_t setVideoSource(video_source vs);
     39     virtual status_t setOutputFormat(output_format of);
     40     virtual status_t setAudioEncoder(audio_encoder ae);
     41     virtual status_t setVideoEncoder(video_encoder ve);
     42     virtual status_t setVideoSize(int width, int height);
     43     virtual status_t setVideoFrameRate(int frames_per_second);
     44     virtual status_t setCamera(const sp<ICamera>& camera);
     45     virtual status_t setPreviewSurface(const sp<ISurface>& surface);
     46     virtual status_t setOutputFile(const char *path);
     47     virtual status_t setOutputFile(int fd, int64_t offset, int64_t length);
     48     virtual status_t setParameters(const String8& params);
     49     virtual status_t setListener(const sp<IMediaRecorderClient>& listener);
     50     virtual status_t prepare();
     51     virtual status_t start();
     52     virtual status_t pause();
     53     virtual status_t stop();
     54     virtual status_t close();
     55     virtual status_t reset();
     56     virtual status_t getMaxAmplitude(int *max);
     57     virtual status_t dump(int fd, const Vector<String16>& args) const;
     58 
     59 private:
     60     enum CameraFlags {
     61         FLAGS_SET_CAMERA = 1L << 0,
     62         FLAGS_HOT_CAMERA = 1L << 1,
     63     };
     64 
     65     sp<Camera> mCamera;
     66     sp<ISurface> mPreviewSurface;
     67     sp<IMediaRecorderClient> mListener;
     68     sp<MediaWriter> mWriter;
     69     sp<AudioSource> mAudioSourceNode;
     70 
     71     audio_source mAudioSource;
     72     video_source mVideoSource;
     73     output_format mOutputFormat;
     74     audio_encoder mAudioEncoder;
     75     video_encoder mVideoEncoder;
     76     bool mUse64BitFileOffset;
     77     int32_t mVideoWidth, mVideoHeight;
     78     int32_t mFrameRate;
     79     int32_t mVideoBitRate;
     80     int32_t mAudioBitRate;
     81     int32_t mAudioChannels;
     82     int32_t mSampleRate;
     83     int32_t mInterleaveDurationUs;
     84     int32_t mIFramesIntervalSec;
     85     int32_t mCameraId;
     86     int32_t mVideoEncoderProfile;
     87     int32_t mVideoEncoderLevel;
     88     int32_t mMovieTimeScale;
     89     int32_t mVideoTimeScale;
     90     int32_t mAudioTimeScale;
     91     int64_t mMaxFileSizeBytes;
     92     int64_t mMaxFileDurationUs;
     93     int64_t mTrackEveryTimeDurationUs;
     94     int32_t mRotationDegrees;  // Clockwise
     95 
     96     String8 mParams;
     97     int mOutputFd;
     98     int32_t mFlags;
     99 
    100     MediaProfiles *mEncoderProfiles;
    101 
    102     status_t startMPEG4Recording();
    103     status_t startAMRRecording();
    104     status_t startAACRecording();
    105     status_t startRTPRecording();
    106     status_t startMPEG2TSRecording();
    107     sp<MediaSource> createAudioSource();
    108     status_t setupCameraSource();
    109     status_t setupAudioEncoder(const sp<MediaWriter>& writer);
    110     status_t setupVideoEncoder(sp<MediaSource> *source);
    111 
    112     // Encoding parameter handling utilities
    113     status_t setParameter(const String8 &key, const String8 &value);
    114     status_t setParamAudioEncodingBitRate(int32_t bitRate);
    115     status_t setParamAudioNumberOfChannels(int32_t channles);
    116     status_t setParamAudioSamplingRate(int32_t sampleRate);
    117     status_t setParamAudioTimeScale(int32_t timeScale);
    118     status_t setParamVideoEncodingBitRate(int32_t bitRate);
    119     status_t setParamVideoIFramesInterval(int32_t seconds);
    120     status_t setParamVideoEncoderProfile(int32_t profile);
    121     status_t setParamVideoEncoderLevel(int32_t level);
    122     status_t setParamVideoCameraId(int32_t cameraId);
    123     status_t setParamVideoTimeScale(int32_t timeScale);
    124     status_t setParamVideoRotation(int32_t degrees);
    125     status_t setParamTrackTimeStatus(int64_t timeDurationUs);
    126     status_t setParamInterleaveDuration(int32_t durationUs);
    127     status_t setParam64BitFileOffset(bool use64BitFileOffset);
    128     status_t setParamMaxFileDurationUs(int64_t timeUs);
    129     status_t setParamMaxFileSizeBytes(int64_t bytes);
    130     status_t setParamMovieTimeScale(int32_t timeScale);
    131     void clipVideoBitRate();
    132     void clipVideoFrameRate();
    133     void clipVideoFrameWidth();
    134     void clipVideoFrameHeight();
    135 
    136     StagefrightRecorder(const StagefrightRecorder &);
    137     StagefrightRecorder &operator=(const StagefrightRecorder &);
    138 };
    139 
    140 }  // namespace android
    141 
    142 #endif  // STAGEFRIGHT_RECORDER_H_
    143 
    144