1 /* 2 * Copyright 2018, 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 INPUT_SURFACE_WRAPPER_H_ 18 #define INPUT_SURFACE_WRAPPER_H_ 19 20 #include <codec2/hidl/client.h> 21 22 namespace android { 23 24 /** 25 * Wrapper interface around InputSurface. 26 */ 27 class InputSurfaceWrapper { 28 public: 29 virtual ~InputSurfaceWrapper() = default; 30 31 /** 32 * Connect the surface with |comp| and start pushing buffers. A surface can 33 * connect to at most one component at a time. 34 * 35 * \return OK successfully connected to |comp| 36 * \return ALREADY_EXISTS already connected to another component. 37 */ 38 virtual status_t connect( 39 const std::shared_ptr<Codec2Client::Component> &comp) = 0; 40 41 /** 42 * Disconnect the surface from the component if any. 43 */ 44 virtual void disconnect() = 0; 45 46 /** 47 * Ref: GraphicBufferSource::signalEndOfInputStream. 48 */ 49 virtual status_t signalEndOfInputStream() = 0; 50 51 /// Input Surface configuration 52 struct Config { 53 // IN PARAMS (GBS) 54 float mMinFps; // minimum fps (repeat frame to achieve this) 55 float mMaxFps; // max fps (via frame drop) 56 float mCaptureFps; // capture fps 57 bool mSuspended; // suspended 58 int64_t mTimeOffsetUs; // time offset (input => codec) 59 int64_t mSuspendAtUs; // suspend/resume time 60 int64_t mStartAtUs; // start time 61 bool mStopped; // stopped 62 int64_t mStopAtUs; // stop time 63 64 // OUT PARAMS (GBS) 65 int64_t mInputDelayUs; // delay between encoder input and surface input 66 67 // IN PARAMS (CODEC WRAPPER) 68 float mFixedAdjustedFps; // fixed fps via PTS manipulation 69 float mMinAdjustedFps; // minimum fps via PTS manipulation 70 }; 71 72 /** 73 * Configures input surface. 74 * 75 * \param config configuration. This can be updated during this call to provide output 76 * parameters, but not to provide configured parameters (to avoid continually 77 * reconfiguring) 78 */ 79 virtual status_t configure(Config &config) = 0; 80 }; 81 82 } // namespace android 83 84 #endif // INPUT_SURFACE_WRAPPER_H_ 85