MetaDataUtils.cpp revision 7dc218e17800cc3ac95551e3280820f407adf7b5 
1/*
2 * Copyright 2018 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//#define LOG_NDEBUG 0
18#define LOG_TAG "MetaDataUtils"
19
20#include <media/stagefright/foundation/avc_utils.h>
21#include <media/stagefright/foundation/ABuffer.h>
22#include <media/stagefright/MediaDefs.h>
23#include <media/stagefright/MetaDataUtils.h>
24
25namespace android {
26
27sp<MetaData> MakeAVCCodecSpecificData(const sp<ABuffer> &accessUnit) {
28    int32_t width;
29    int32_t height;
30    int32_t sarWidth;
31    int32_t sarHeight;
32    sp<ABuffer> csd = MakeAVCCodecSpecificData(accessUnit, &width, &height, &sarWidth, &sarHeight);
33    if (csd == nullptr) {
34        return nullptr;
35    }
36    sp<MetaData> meta = new MetaData;
37    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
38
39    meta->setData(kKeyAVCC, kTypeAVCC, csd->data(), csd->size());
40    meta->setInt32(kKeyWidth, width);
41    meta->setInt32(kKeyHeight, height);
42    if (sarWidth > 0 && sarHeight > 0) {
43        meta->setInt32(kKeySARWidth, sarWidth);
44        meta->setInt32(kKeySARHeight, sarHeight);
45    }
46    return meta;
47}
48
49sp<MetaData> MakeAACCodecSpecificData(
50        unsigned profile, unsigned sampling_freq_index,
51        unsigned channel_configuration) {
52    int32_t sampleRate;
53    int32_t channelCount;
54    sp<ABuffer> csd = MakeAACCodecSpecificData(profile, sampling_freq_index,
55            channel_configuration, &sampleRate, &channelCount);
56    if (csd == nullptr) {
57        return nullptr;
58    }
59    sp<MetaData> meta = new MetaData;
60    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC);
61
62    meta->setInt32(kKeySampleRate, sampleRate);
63    meta->setInt32(kKeyChannelCount, channelCount);
64
65    meta->setData(kKeyESDS, 0, csd->data(), csd->size());
66    return meta;
67}
68
69}  // namespace android
70