avc_utils.h revision c68a48c474f609df3eeb7d9738675d6ac8835e0a 
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
27void FindAVCDimensions(
28        const sp<ABuffer> &seqParamSet, int32_t *width, int32_t *height);
29
30unsigned parseUE(ABitReader *br);
31
32status_t getNextNALUnit(
33        const uint8_t **_data, size_t *_size,
34        const uint8_t **nalStart, size_t *nalSize,
35        bool startCodeFollows = false);
36
37struct MetaData;
38sp<MetaData> MakeAVCCodecSpecificData(const sp<ABuffer> &accessUnit);
39
40bool IsIDR(const sp<ABuffer> &accessUnit);
41
42}  // namespace android
43
44#endif  // AVC_UTILS_H_
45