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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 UTILS_H_
18 
19 #define UTILS_H_
20 
21 #include <media/stagefright/foundation/AString.h>
22 #include <stdint.h>
23 #include <utils/Errors.h>
24 #include <utils/RefBase.h>
25 
26 namespace android {
27 
28 #define FOURCC(c1, c2, c3, c4) \
29     (c1 << 24 | c2 << 16 | c3 << 8 | c4)
30 
31 uint16_t U16_AT(const uint8_t *ptr);
32 uint32_t U32_AT(const uint8_t *ptr);
33 uint64_t U64_AT(const uint8_t *ptr);
34 
35 uint16_t U16LE_AT(const uint8_t *ptr);
36 uint32_t U32LE_AT(const uint8_t *ptr);
37 uint64_t U64LE_AT(const uint8_t *ptr);
38 
39 uint64_t ntoh64(uint64_t x);
40 uint64_t hton64(uint64_t x);
41 
42 struct MetaData;
43 struct AMessage;
44 status_t convertMetaDataToMessage(
45         const sp<MetaData> &meta, sp<AMessage> *format);
46 void convertMessageToMetaData(
47         const sp<AMessage> &format, sp<MetaData> &meta);
48 
49 AString MakeUserAgent();
50 
51 }  // namespace android
52 
53 #endif  // UTILS_H_
54