1 /*
2  * Copyright (C) 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 #ifndef AUDIO_PRESENTATION_INFO_H_
18 #define AUDIO_PRESENTATION_INFO_H_
19 
20 #include <map>
21 #include <sstream>
22 #include <stdint.h>
23 #include <vector>
24 
25 #include <utils/Errors.h>
26 
27 namespace android {
28 
29 enum AudioPresentationVersion {
30     PRESENTATION_VERSION_UNDEFINED = 0,
31     PRESENTATION_VERSION_1,
32 };
33 
34 enum MasteringIndication {
35     MASTERING_NOT_INDICATED,
36     MASTERED_FOR_STEREO,
37     MASTERED_FOR_SURROUND,
38     MASTERED_FOR_3D,
39     MASTERED_FOR_HEADPHONE,
40 };
41 
42 struct AudioPresentation {
43     uint32_t mVersion = PRESENTATION_VERSION_UNDEFINED;
44     int32_t mPresentationId = -1;
45     int32_t mProgramId = -1;
46     std::map<std::string, std::string> mLabels;
47     std::string mLanguage;
48     MasteringIndication mMasteringIndication = MASTERING_NOT_INDICATED;
49     bool mAudioDescriptionAvailable = false;
50     bool mSpokenSubtitlesAvailable = false;
51     bool mDialogueEnhancementAvailable = false;
52 };
53 
54 struct AudioPresentationV1 : public AudioPresentation {
AudioPresentationV1AudioPresentationV155     AudioPresentationV1() {
56         mVersion = PRESENTATION_VERSION_1;
57     }
58 };
59 
60 typedef std::vector<AudioPresentation> AudioPresentationCollection;
61 
62 void serializeAudioPresentations(const AudioPresentationCollection& presentations,
63                                                std::ostream* serializedOutput);
64 status_t deserializeAudioPresentations(std::istream* serializedInput,
65                                                 AudioPresentationCollection *presentations);
66 }  // namespace android
67 
68 #endif  // AUDIO_PRESENTATION_INFO_H_
69