Utils.h revision cd77d4a1d38b7609a03f6826a1ff5fa7c98aa34f 
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
26namespace android {
27
28#define FOURCC(c1, c2, c3, c4) \
29    (c1 << 24 | c2 << 16 | c3 << 8 | c4)
30
31uint16_t U16_AT(const uint8_t *ptr);
32uint32_t U32_AT(const uint8_t *ptr);
33uint64_t U64_AT(const uint8_t *ptr);
34
35uint16_t U16LE_AT(const uint8_t *ptr);
36uint32_t U32LE_AT(const uint8_t *ptr);
37uint64_t U64LE_AT(const uint8_t *ptr);
38
39uint64_t ntoh64(uint64_t x);
40uint64_t hton64(uint64_t x);
41
42struct MetaData;
43struct AMessage;
44status_t convertMetaDataToMessage(
45        const sp<MetaData> &meta, sp<AMessage> *format);
46void convertMessageToMetaData(
47        const sp<AMessage> &format, sp<MetaData> &meta);
48
49AString MakeUserAgent();
50
51}  // namespace android
52
53#endif  // UTILS_H_
54