1 /* 2 * Copyright (C) 2017 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 _HEIF_DECODER_IMPL_ 18 #define _HEIF_DECODER_IMPL_ 19 20 #include "include/HeifDecoderAPI.h" 21 #include <system/graphics.h> 22 #include <utils/RefBase.h> 23 24 namespace android { 25 26 class IDataSource; 27 class IMemory; 28 class MediaMetadataRetriever; 29 30 /* 31 * An implementation of HeifDecoder based on Android's MediaMetadataRetriever. 32 */ 33 class HeifDecoderImpl : public HeifDecoder { 34 public: 35 36 HeifDecoderImpl(); 37 ~HeifDecoderImpl() override; 38 39 bool init(HeifStream* stream, HeifFrameInfo* frameInfo) override; 40 41 bool getEncodedColor(HeifEncodedColor* outColor) const override; 42 43 bool setOutputColor(HeifColorFormat heifColor) override; 44 45 bool decode(HeifFrameInfo* frameInfo) override; 46 47 bool getScanline(uint8_t* dst) override; 48 49 size_t skipScanlines(size_t count) override; 50 51 private: 52 sp<IDataSource> mDataSource; 53 sp<MediaMetadataRetriever> mRetriever; 54 sp<IMemory> mFrameMemory; 55 android_pixel_format_t mOutputColor; 56 size_t mCurScanline; 57 bool mFrameDecoded; 58 }; 59 60 } // namespace android 61 62 #endif // _HEIF_DECODER_IMPL_ 63
