1 /*
2 * Copyright (C) 2011 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 TEXT_DESCRIPTIONS_H_
18
19#define TEXT_DESCRIPTIONS_H_
20
21#include <binder/Parcel.h>
22#include <media/stagefright/foundation/ABase.h>
23
24namespace android {
25
26class TextDescriptions {
27public:
28    enum {
29        IN_BAND_TEXT_3GPP             = 0x01,
30        OUT_OF_BAND_TEXT_SRT          = 0x02,
31
32        GLOBAL_DESCRIPTIONS           = 0x100,
33        LOCAL_DESCRIPTIONS            = 0x200,
34    };
35
36    static status_t getParcelOfDescriptions(
37            const uint8_t *data, ssize_t size,
38            uint32_t flags, int timeMs, Parcel *parcel);
39private:
40    TextDescriptions();
41
42    enum {
43        // These keys must be in sync with the keys in TimedText.java
44        KEY_DISPLAY_FLAGS                 = 1, // int
45        KEY_STYLE_FLAGS                   = 2, // int
46        KEY_BACKGROUND_COLOR_RGBA         = 3, // int
47        KEY_HIGHLIGHT_COLOR_RGBA          = 4, // int
48        KEY_SCROLL_DELAY                  = 5, // int
49        KEY_WRAP_TEXT                     = 6, // int
50        KEY_START_TIME                    = 7, // int
51        KEY_STRUCT_BLINKING_TEXT_LIST     = 8, // List<CharPos>
52        KEY_STRUCT_FONT_LIST              = 9, // List<Font>
53        KEY_STRUCT_HIGHLIGHT_LIST         = 10, // List<CharPos>
54        KEY_STRUCT_HYPER_TEXT_LIST        = 11, // List<HyperText>
55        KEY_STRUCT_KARAOKE_LIST           = 12, // List<Karaoke>
56        KEY_STRUCT_STYLE_LIST             = 13, // List<Style>
57        KEY_STRUCT_TEXT_POS               = 14, // TextPos
58        KEY_STRUCT_JUSTIFICATION          = 15, // Justification
59        KEY_STRUCT_TEXT                   = 16, // Text
60
61        KEY_GLOBAL_SETTING                = 101,
62        KEY_LOCAL_SETTING                 = 102,
63        KEY_START_CHAR                    = 103,
64        KEY_END_CHAR                      = 104,
65        KEY_FONT_ID                       = 105,
66        KEY_FONT_SIZE                     = 106,
67        KEY_TEXT_COLOR_RGBA               = 107,
68    };
69
70    static status_t extractSRTLocalDescriptions(
71            const uint8_t *data, ssize_t size,
72            int timeMs, Parcel *parcel);
73    static status_t extract3GPPGlobalDescriptions(
74            const uint8_t *data, ssize_t size,
75            Parcel *parcel);
76    static status_t extract3GPPLocalDescriptions(
77            const uint8_t *data, ssize_t size,
78            int timeMs, Parcel *parcel);
79
80    DISALLOW_EVIL_CONSTRUCTORS(TextDescriptions);
81};
82
83}  // namespace android
84#endif  // TEXT_DESCRIPTIONS_H_
85