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README.md

1# MEDIA\_UTILS\_LITE<a name="EN-US_TOPIC_0000001127127417"></a>
2
3- [MEDIA\_UTILS\_LITE<a name="EN-US_TOPIC_0000001127127417"></a>](#media_utils_lite)
4  - [Introduction<a name="section11660541593"></a>](#introduction)
5  - [Directory Structure<a name="section8685144625320"></a>](#directory-structure)
6  - [Usage<a name="section1648194512427"></a>](#usage)
7  - [Constraints<a name="section161941989596"></a>](#constraints)
8  - [Repositories Involved<a name="section105062051111614"></a>](#repositories-involved)
9
10## Introduction<a name="section11660541593"></a>
11
12This repository defines common information such as media error codes and data types required for audio and video recording and playback.
13
14Data types
15
16-   **SourceType**: type of the media source to play
17-   **BufferFlags**: flags of the data carried in the buffer
18-   **AudioSourceType**: enumeration of audio input source types
19-   **AudioCodecFormat**: enumeration of audio data formats
20-   **AudioStreamType**: enumeration of audio stream types
21-   **AudioBitWidth**: enumeration of sampling bit width
22
23The following table lists the error codes.
24
25<a name="table7158151314620"></a>
26<table><thead align="left"><tr id="row1722018139620"><th class="cellrowborder" valign="top" width="24.95%" id="mcps1.1.4.1.1"><p id="p172202131066"><a name="p172202131066"></a><a name="p172202131066"></a>Code</p>
27</th>
28<th class="cellrowborder" valign="top" width="42.91%" id="mcps1.1.4.1.2"><p id="p5220913569"><a name="p5220913569"></a><a name="p5220913569"></a>Macro</p>
29</th>
30<th class="cellrowborder" valign="top" width="32.14%" id="mcps1.1.4.1.3"><p id="p1722061317617"><a name="p1722061317617"></a><a name="p1722061317617"></a>Description</p>
31</th>
32</tr>
33</thead>
34<tbody><tr id="row1422020137612"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p202201213562"><a name="p202201213562"></a><a name="p202201213562"></a>0xffffffff</p>
35</td>
36<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p0220171317612"><a name="p0220171317612"></a><a name="p0220171317612"></a>ERR_INVALID_READ</p>
37</td>
38<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p82208133618"><a name="p82208133618"></a><a name="p82208133618"></a>Data reading failed.</p>
39</td>
40</tr>
41<tr id="row82203139620"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p1122013131168"><a name="p1122013131168"></a><a name="p1122013131168"></a>0x0</p>
42</td>
43<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p1322011315617"><a name="p1322011315617"></a><a name="p1322011315617"></a>SUCCESS</p>
44</td>
45<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p142207137613"><a name="p142207137613"></a><a name="p142207137613"></a>Operation succeeded.</p>
46</td>
47</tr>
48<tr id="row15220213066"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p14220131313612"><a name="p14220131313612"></a><a name="p14220131313612"></a>0x3c10000</p>
49</td>
50<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p1822016133612"><a name="p1822016133612"></a><a name="p1822016133612"></a>ERROR</p>
51</td>
52<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p1422071317614"><a name="p1422071317614"></a><a name="p1422071317614"></a>Operation failed.</p>
53</td>
54</tr>
55<tr id="row3220191311619"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p22201013865"><a name="p22201013865"></a><a name="p22201013865"></a>0x3c10001</p>
56</td>
57<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p52211813262"><a name="p52211813262"></a><a name="p52211813262"></a>ERR_ILLEGAL_STATE</p>
58</td>
59<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p102211913669"><a name="p102211913669"></a><a name="p102211913669"></a>Invalid status.</p>
60</td>
61</tr>
62<tr id="row1222119131064"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p152211413962"><a name="p152211413962"></a><a name="p152211413962"></a>0x2A05</p>
63</td>
64<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p7221113864"><a name="p7221113864"></a><a name="p7221113864"></a>ERR_INVALID_PARAM</p>
65</td>
66<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p12211813968"><a name="p12211813968"></a><a name="p12211813968"></a>Invalid parameter.</p>
67</td>
68</tr>
69<tr id="row1122110131163"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p1222111131761"><a name="p1222111131761"></a><a name="p1222111131761"></a>0x3c10003</p>
70</td>
71<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p1622171317617"><a name="p1622171317617"></a><a name="p1622171317617"></a>ERR_EARLY_PREPARE</p>
72</td>
73<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p1722117131610"><a name="p1722117131610"></a><a name="p1722117131610"></a>Early start.</p>
74</td>
75</tr>
76<tr id="row1322191310611"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p2221713569"><a name="p2221713569"></a><a name="p2221713569"></a>0x3c10004</p>
77</td>
78<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p1422115131164"><a name="p1422115131164"></a><a name="p1422115131164"></a>ERR_SOURCE_NOT_SET</p>
79</td>
80<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p1722119131068"><a name="p1722119131068"></a><a name="p1722119131068"></a>Media source not set.</p>
81</td>
82</tr>
83<tr id="row62216139614"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p182218133619"><a name="p182218133619"></a><a name="p182218133619"></a>0x3c10005</p>
84</td>
85<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p72211813061"><a name="p72211813061"></a><a name="p72211813061"></a>ERR_INVALID_OPERATION</p>
86</td>
87<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p2221161310618"><a name="p2221161310618"></a><a name="p2221161310618"></a>Invalid operation.</p>
88</td>
89</tr>
90<tr id="row2022111312610"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p1722111139618"><a name="p1722111139618"></a><a name="p1722111139618"></a>0x2A09</p>
91</td>
92<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p12211713767"><a name="p12211713767"></a><a name="p12211713767"></a>ERR_NOFREE_CHANNEL</p>
93</td>
94<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p1622115137617"><a name="p1622115137617"></a><a name="p1622115137617"></a>No free channel.</p>
95</td>
96</tr>
97<tr id="row8221201314611"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p122217138616"><a name="p122217138616"></a><a name="p122217138616"></a>0x3c10007</p>
98</td>
99<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p1022110130620"><a name="p1022110130620"></a><a name="p1022110130620"></a>ERR_READ_BUFFER</p>
100</td>
101<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p1322116131064"><a name="p1322116131064"></a><a name="p1322116131064"></a>Error occurred during buffer reading.</p>
102</td>
103</tr>
104<tr id="row142221813263"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p32221713964"><a name="p32221713964"></a><a name="p32221713964"></a>0x3c10008</p>
105</td>
106<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p1622221317615"><a name="p1622221317615"></a><a name="p1622221317615"></a>ERR_NOT_STARTED</p>
107</td>
108<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p11222413963"><a name="p11222413963"></a><a name="p11222413963"></a>Device not started.</p>
109</td>
110</tr>
111<tr id="row1922217130615"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p19222213267"><a name="p19222213267"></a><a name="p19222213267"></a>0x3c100c8</p>
112</td>
113<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p32221213768"><a name="p32221213768"></a><a name="p32221213768"></a>ERR_UNKNOWN</p>
114</td>
115<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p20222171320618"><a name="p20222171320618"></a><a name="p20222171320618"></a>Unknown error.</p>
116</td>
117</tr>
118</tbody>
119</table>
120
121**Figure  1**  Position of this repository \(in the dotted blue box\) in the multimedia subsystem<a name="fig9521193714117"></a>
122![](figures/position-of-this-repository-(in-the-dotted-blue-box)-in-the-multimedia-subsystem.png "position-of-this-repository-(in-the-dotted-blue-box)-in-the-multimedia-subsystem")
123
124## Directory Structure<a name="section8685144625320"></a>
125
126```
127foundation/multimedia/utils/lite
128├── interfaces    # Header file of the data types and media formats
129└── hals       # HAL adaptation APIs
130└── src        # Implementation of the data types and media formats
131```
132
133## Usage<a name="section1648194512427"></a>
134
135Build a single repository in the root directory.
136
137```
138# Select the development board.
139hb set
140# Build this repository.
141hb build media_service
142```
143
144## Constraints<a name="section161941989596"></a>
145
146C++ 11 or later
147
148## Repositories Involved<a name="section105062051111614"></a>
149
150[Multimedia subsystem](https://gitee.com/openharmony/docs/blob/master/en/readme/multimedia.md)
151
152[camera\_lite](https://gitee.com/openharmony/multimedia_camera_lite)
153
154[camera\_sample\_lite](https://gitee.com/openharmony/applications_sample_camera)
155
156[audio\_lite](https://gitee.com/openharmony/multimedia_audio_lite)
157
158[media\_lite](https://gitee.com/openharmony/multimedia_media_lite)
159
160[media\_utils\_lite](https://gitee.com/openharmony/multimedia_utils_lite)
161
162

README_zh.md

1# 媒体子系统MEDIA\_UTILS\_LITE组件<a name="ZH-CN_TOPIC_0000001127127417"></a>
2
3- [媒体子系统MEDIA\_UTILS\_LITE组件<a name="ZH-CN_TOPIC_0000001127127417"></a>](#媒体子系统media_utils_lite组件)
4  - [简介<a name="section11660541593"></a>](#简介)
5  - [目录<a name="section8685144625320"></a>](#目录)
6  - [使用说明<a name="section1648194512427"></a>](#使用说明)
7  - [约束<a name="section161941989596"></a>](#约束)
8  - [相关仓<a name="section105062051111614"></a>](#相关仓)
9
10## 简介<a name="section11660541593"></a>
11
12提供媒体错误码等公用信息的定义，以及录制、播放音频和视频所需的数据类型。
13
14数据类型：
15
16-   SourceType：播放片源类型
17-   BufferFlags：Buffer承载数据标识
18-   AudioSourceType：定义音频输入源类型枚举
19-   AudioCodecFormat：定义音频数据格式枚举
20-   AudioStreamType：定义音频流类型枚举
21-   AudioBitWidth：定义采样位宽枚举
22
23错误码：
24
25<a name="table7158151314620"></a>
26<table><thead align="left"><tr id="row1722018139620"><th class="cellrowborder" valign="top" width="24.95%" id="mcps1.1.4.1.1"><p id="p172202131066"><a name="p172202131066"></a><a name="p172202131066"></a>错误代码</p>
27</th>
28<th class="cellrowborder" valign="top" width="42.91%" id="mcps1.1.4.1.2"><p id="p5220913569"><a name="p5220913569"></a><a name="p5220913569"></a>宏定义</p>
29</th>
30<th class="cellrowborder" valign="top" width="32.14%" id="mcps1.1.4.1.3"><p id="p1722061317617"><a name="p1722061317617"></a><a name="p1722061317617"></a>描述</p>
31</th>
32</tr>
33</thead>
34<tbody><tr id="row1422020137612"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p202201213562"><a name="p202201213562"></a><a name="p202201213562"></a>0xffffffff</p>
35</td>
36<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p0220171317612"><a name="p0220171317612"></a><a name="p0220171317612"></a>ERR_INVALID_READ</p>
37</td>
38<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p82208133618"><a name="p82208133618"></a><a name="p82208133618"></a>读数据失败</p>
39</td>
40</tr>
41<tr id="row82203139620"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p1122013131168"><a name="p1122013131168"></a><a name="p1122013131168"></a>0x0</p>
42</td>
43<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p1322011315617"><a name="p1322011315617"></a><a name="p1322011315617"></a>SUCCESS</p>
44</td>
45<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p142207137613"><a name="p142207137613"></a><a name="p142207137613"></a>操作成功</p>
46</td>
47</tr>
48<tr id="row15220213066"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p14220131313612"><a name="p14220131313612"></a><a name="p14220131313612"></a>0x3c10000</p>
49</td>
50<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p1822016133612"><a name="p1822016133612"></a><a name="p1822016133612"></a>ERROR</p>
51</td>
52<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p1422071317614"><a name="p1422071317614"></a><a name="p1422071317614"></a>操作失败</p>
53</td>
54</tr>
55<tr id="row3220191311619"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p22201013865"><a name="p22201013865"></a><a name="p22201013865"></a>0x3c10001</p>
56</td>
57<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p52211813262"><a name="p52211813262"></a><a name="p52211813262"></a>ERR_ILLEGAL_STATE</p>
58</td>
59<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p102211913669"><a name="p102211913669"></a><a name="p102211913669"></a>状态错误</p>
60</td>
61</tr>
62<tr id="row1222119131064"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p152211413962"><a name="p152211413962"></a><a name="p152211413962"></a>0x2A05</p>
63</td>
64<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p7221113864"><a name="p7221113864"></a><a name="p7221113864"></a>ERR_INVALID_PARAM</p>
65</td>
66<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p12211813968"><a name="p12211813968"></a><a name="p12211813968"></a>参数无效</p>
67</td>
68</tr>
69<tr id="row1122110131163"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p1222111131761"><a name="p1222111131761"></a><a name="p1222111131761"></a>0x3c10003</p>
70</td>
71<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p1622171317617"><a name="p1622171317617"></a><a name="p1622171317617"></a>ERR_EARLY_PREPARE</p>
72</td>
73<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p1722117131610"><a name="p1722117131610"></a><a name="p1722117131610"></a>媒体启动提前</p>
74</td>
75</tr>
76<tr id="row1322191310611"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p2221713569"><a name="p2221713569"></a><a name="p2221713569"></a>0x3c10004</p>
77</td>
78<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p1422115131164"><a name="p1422115131164"></a><a name="p1422115131164"></a>ERR_SOURCE_NOT_SET</p>
79</td>
80<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p1722119131068"><a name="p1722119131068"></a><a name="p1722119131068"></a>媒体源未设置</p>
81</td>
82</tr>
83<tr id="row62216139614"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p182218133619"><a name="p182218133619"></a><a name="p182218133619"></a>0x3c10005</p>
84</td>
85<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p72211813061"><a name="p72211813061"></a><a name="p72211813061"></a>ERR_INVALID_OPERATION</p>
86</td>
87<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p2221161310618"><a name="p2221161310618"></a><a name="p2221161310618"></a>无效操作</p>
88</td>
89</tr>
90<tr id="row2022111312610"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p1722111139618"><a name="p1722111139618"></a><a name="p1722111139618"></a>0x2A09</p>
91</td>
92<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p12211713767"><a name="p12211713767"></a><a name="p12211713767"></a>ERR_NOFREE_CHANNEL</p>
93</td>
94<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p1622115137617"><a name="p1622115137617"></a><a name="p1622115137617"></a>通道无空闲</p>
95</td>
96</tr>
97<tr id="row8221201314611"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p122217138616"><a name="p122217138616"></a><a name="p122217138616"></a>0x3c10007</p>
98</td>
99<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p1022110130620"><a name="p1022110130620"></a><a name="p1022110130620"></a>ERR_READ_BUFFER</p>
100</td>
101<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p1322116131064"><a name="p1322116131064"></a><a name="p1322116131064"></a>读缓冲区出错</p>
102</td>
103</tr>
104<tr id="row142221813263"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p32221713964"><a name="p32221713964"></a><a name="p32221713964"></a>0x3c10008</p>
105</td>
106<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p1622221317615"><a name="p1622221317615"></a><a name="p1622221317615"></a>ERR_NOT_STARTED</p>
107</td>
108<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p11222413963"><a name="p11222413963"></a><a name="p11222413963"></a>设备未启动</p>
109</td>
110</tr>
111<tr id="row1922217130615"><td class="cellrowborder" valign="top" width="24.95%" headers="mcps1.1.4.1.1 "><p id="p19222213267"><a name="p19222213267"></a><a name="p19222213267"></a>0x3c100c8</p>
112</td>
113<td class="cellrowborder" valign="top" width="42.91%" headers="mcps1.1.4.1.2 "><p id="p32221213768"><a name="p32221213768"></a><a name="p32221213768"></a>ERR_UNKNOWN</p>
114</td>
115<td class="cellrowborder" valign="top" width="32.14%" headers="mcps1.1.4.1.3 "><p id="p20222171320618"><a name="p20222171320618"></a><a name="p20222171320618"></a>未知错误</p>
116</td>
117</tr>
118</tbody>
119</table>
120
121**图 1**  媒体子系统架构（蓝色虚线框是media\_utils）<a name="fig9521193714117"></a>
122![](figures/媒体子系统架构（蓝色虚线框是media_utils）.png "媒体子系统架构（蓝色虚线框是media_utils）")
123
124## 目录<a name="section8685144625320"></a>
125
126```
127foundation/multimedia/utils/lite
128├── interfaces    # 数据类型和媒体格式头文件
129└── hals       # HAL层适配接口
130└── src        # 数据类型和媒体格式实现
131```
132
133## 使用说明<a name="section1648194512427"></a>
134
135单仓的编译构建，在根目录下进行单仓的构建和编译
136
137```
138# 开发板选择
139hb set
140# 构建和编译
141hb build media_service
142```
143
144## 约束<a name="section161941989596"></a>
145
146C++11版本或以上
147
148## 相关仓<a name="section105062051111614"></a>
149
150[媒体子系统](https://gitee.com/openharmony/docs/blob/master/zh-cn/readme/%E5%AA%92%E4%BD%93%E5%AD%90%E7%B3%BB%E7%BB%9F.md)
151
152[camera\_lite](https://gitee.com/openharmony/multimedia_camera_lite)
153
154[camera\_sample\_lite](https://gitee.com/openharmony/applications_sample_camera)
155
156[audio\_lite](https://gitee.com/openharmony/multimedia_audio_lite)
157
158[media\_lite](https://gitee.com/openharmony/multimedia_media_lite)
159
160[media\_utils\_lite](https://gitee.com/openharmony/multimedia_utils_lite)
161
162