android_media_Utils.h revision 8409c0691fb128fef6244305977342776bddf919
179f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong/* 279f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong * Copyright 2011, The Android Open Source Project 379f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong * 479f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong * Licensed under the Apache License, Version 2.0 (the "License"); 579f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong * you may not use this file except in compliance with the License. 679f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong * You may obtain a copy of the License at 779f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong * 879f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong * http://www.apache.org/licenses/LICENSE-2.0 979f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong * 1079f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong * Unless required by applicable law or agreed to in writing, software 1179f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong * distributed under the License is distributed on an "AS IS" BASIS, 1279f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1379f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong * See the License for the specific language governing permissions and 1479f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong * limitations under the License. 1579f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong */ 1679f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong 1779f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong#ifndef _ANDROID_MEDIA_UTILS_H_ 1879f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong#define _ANDROID_MEDIA_UTILS_H_ 1979f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong 208409c0691fb128fef6244305977342776bddf919Jaesung Chung#include "src/piex_types.h" 218409c0691fb128fef6244305977342776bddf919Jaesung Chung#include "src/piex.h" 2279f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong 238409c0691fb128fef6244305977342776bddf919Jaesung Chung#include <android_runtime/AndroidRuntime.h> 248409c0691fb128fef6244305977342776bddf919Jaesung Chung#include <jni.h> 258409c0691fb128fef6244305977342776bddf919Jaesung Chung#include <JNIHelp.h> 2679f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong#include <utils/KeyedVector.h> 2779f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong#include <utils/String8.h> 2879f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong 2979f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dongnamespace android { 3079f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong 318409c0691fb128fef6244305977342776bddf919Jaesung Chungclass FileStream : public piex::StreamInterface { 328409c0691fb128fef6244305977342776bddf919Jaesung Chungprivate: 338409c0691fb128fef6244305977342776bddf919Jaesung Chung FILE *mFile; 348409c0691fb128fef6244305977342776bddf919Jaesung Chung size_t mPosition; 358409c0691fb128fef6244305977342776bddf919Jaesung Chung size_t mSize; 368409c0691fb128fef6244305977342776bddf919Jaesung Chung 378409c0691fb128fef6244305977342776bddf919Jaesung Chungpublic: 388409c0691fb128fef6244305977342776bddf919Jaesung Chung FileStream(const String8 filename); 398409c0691fb128fef6244305977342776bddf919Jaesung Chung ~FileStream(); 408409c0691fb128fef6244305977342776bddf919Jaesung Chung 418409c0691fb128fef6244305977342776bddf919Jaesung Chung // Reads 'length' amount of bytes from 'offset' to 'data'. The 'data' buffer 428409c0691fb128fef6244305977342776bddf919Jaesung Chung // provided by the caller, guaranteed to be at least "length" bytes long. 438409c0691fb128fef6244305977342776bddf919Jaesung Chung // On 'kOk' the 'data' pointer contains 'length' valid bytes beginning at 448409c0691fb128fef6244305977342776bddf919Jaesung Chung // 'offset' bytes from the start of the stream. 458409c0691fb128fef6244305977342776bddf919Jaesung Chung // Returns 'kFail' if 'offset' + 'length' exceeds the stream and does not 468409c0691fb128fef6244305977342776bddf919Jaesung Chung // change the contents of 'data'. 478409c0691fb128fef6244305977342776bddf919Jaesung Chung piex::Error GetData( 488409c0691fb128fef6244305977342776bddf919Jaesung Chung const size_t offset, const size_t length, std::uint8_t* data) override; 498409c0691fb128fef6244305977342776bddf919Jaesung Chung bool exists() const; 508409c0691fb128fef6244305977342776bddf919Jaesung Chung size_t size() const; 518409c0691fb128fef6244305977342776bddf919Jaesung Chung}; 528409c0691fb128fef6244305977342776bddf919Jaesung Chung 538409c0691fb128fef6244305977342776bddf919Jaesung Chung// Reads EXIF metadata from a given raw image via piex. 548409c0691fb128fef6244305977342776bddf919Jaesung Chung// And returns true if the operation is successful; otherwise, false. 558409c0691fb128fef6244305977342776bddf919Jaesung Chungbool GetExifFromRawImage( 568409c0691fb128fef6244305977342776bddf919Jaesung Chung FileStream* stream, const String8& filename, piex::PreviewImageData& image_data); 578409c0691fb128fef6244305977342776bddf919Jaesung Chung 588409c0691fb128fef6244305977342776bddf919Jaesung Chung// Returns true if the conversion is successful; otherwise, false. 5979f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dongbool ConvertKeyValueArraysToKeyedVector( 608409c0691fb128fef6244305977342776bddf919Jaesung Chung JNIEnv *env, jobjectArray keys, jobjectArray values, 618409c0691fb128fef6244305977342776bddf919Jaesung Chung KeyedVector<String8, String8>* vector); 6279f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong 6388572f7a3e9d7ef85c26865a0150f3c2041561c2Andreas Huberstruct AMessage; 6488572f7a3e9d7ef85c26865a0150f3c2041561c2Andreas Huberstatus_t ConvertMessageToMap( 6588572f7a3e9d7ef85c26865a0150f3c2041561c2Andreas Huber JNIEnv *env, const sp<AMessage> &msg, jobject *map); 6688572f7a3e9d7ef85c26865a0150f3c2041561c2Andreas Huber 6788572f7a3e9d7ef85c26865a0150f3c2041561c2Andreas Huberstatus_t ConvertKeyValueArraysToMessage( 6888572f7a3e9d7ef85c26865a0150f3c2041561c2Andreas Huber JNIEnv *env, jobjectArray keys, jobjectArray values, 6988572f7a3e9d7ef85c26865a0150f3c2041561c2Andreas Huber sp<AMessage> *msg); 7088572f7a3e9d7ef85c26865a0150f3c2041561c2Andreas Huber 7179f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong}; // namespace android 7279f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong 7379f407cc6c5ae34fc6f04d52fd034b49d1f002c4James Dong#endif // _ANDROID_MEDIA_UTILS_H_ 74