avc_utils.h revision bfd41f33c77c66ead48ee378e4ea4b7bfa5fca1f 
1/*
2 * Copyright (C) 2010 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 AVC_UTILS_H_
18
19#define AVC_UTILS_H_
20
21#include <media/stagefright/foundation/ABuffer.h>
22
23namespace android {
24
25struct ABitReader;
26
27enum {
28    kAVCProfileBaseline      = 0x42,
29    kAVCProfileMain          = 0x4d,
30    kAVCProfileExtended      = 0x58,
31    kAVCProfileHigh          = 0x64,
32    kAVCProfileHigh10        = 0x6e,
33    kAVCProfileHigh422       = 0x7a,
34    kAVCProfileHigh444       = 0xf4,
35    kAVCProfileCAVLC444Intra = 0x2c
36};
37
38void FindAVCDimensions(
39        const sp<ABuffer> &seqParamSet, int32_t *width, int32_t *height);
40
41unsigned parseUE(ABitReader *br);
42
43status_t getNextNALUnit(
44        const uint8_t **_data, size_t *_size,
45        const uint8_t **nalStart, size_t *nalSize,
46        bool startCodeFollows = false);
47
48struct MetaData;
49sp<MetaData> MakeAVCCodecSpecificData(const sp<ABuffer> &accessUnit);
50
51bool IsIDR(const sp<ABuffer> &accessUnit);
52
53const char *AVCProfileToString(uint8_t profile);
54
55}  // namespace android
56
57#endif  // AVC_UTILS_H_
58