1 /* 2 * Copyright 2016, 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 MEDIA_CODEC_BUFFER_H_ 18 19 #define MEDIA_CODEC_BUFFER_H_ 20 21 #include <utils/Errors.h> 22 #include <utils/RefBase.h> 23 #include <utils/StrongPointer.h> 24 25 namespace android { 26 27 struct ABuffer; 28 struct AMessage; 29 class MediaBufferBase; 30 31 /** 32 * Buffers used by MediaCodec. 33 */ 34 class MediaCodecBuffer : public RefBase { 35 public: 36 MediaCodecBuffer(const sp<AMessage> &format, const sp<ABuffer> &buffer); 37 38 /** 39 * MediaCodec will release all references to the buffer when it's done using 40 * it, so the destructor should return the buffer to the owner, such as OMX 41 * components, buffer allocators, surfaces, etc. 42 */ 43 virtual ~MediaCodecBuffer() = default; 44 45 // ABuffer-like interface 46 uint8_t *base(); 47 uint8_t *data(); 48 size_t capacity() const; 49 size_t size() const; 50 size_t offset() const; 51 // Default implementation calls ABuffer::setRange() and returns OK. 52 virtual status_t setRange(size_t offset, size_t size); 53 54 // TODO: Specify each field for meta/format. 55 sp<AMessage> meta(); 56 sp<AMessage> format(); 57 58 void setFormat(const sp<AMessage> &format); 59 60 private: 61 MediaCodecBuffer() = delete; 62 63 const sp<AMessage> mMeta; 64 sp<AMessage> mFormat; 65 const sp<ABuffer> mBuffer; 66 }; 67 68 } // namespace android 69 70 #endif // MEDIA_CODEC_BUFFER_H_ 71
