| NONE_DEVICES_FLAG<sup>9+</sup> | 0 | No flag.<br>This is a system API and cannot be called by third-party applications. |
| OUTPUT_DEVICES_FLAG | 1 | Output device.|
| INPUT_DEVICES_FLAG | 2 | Input device.|
| ALL_DEVICES_FLAG | 3 | All devices.|
| DISTRIBUTED_OUTPUT_DEVICES_FLAG<sup>9+</sup> | 4 | Distributed output device.<br>This is a system API and cannot be called by third-party applications. |
| DISTRIBUTED_INPUT_DEVICES_FLAG<sup>9+</sup> | 8 | Distributed input device.<br>This is a system API and cannot be called by third-party applications. |
| ALL_DISTRIBUTED_DEVICES_FLAG<sup>9+</sup> | 12 | Distributed input and output devices.<br>This is a system API and cannot be called by third-party applications. |
## DeviceRole
...
...
@@ -307,17 +365,18 @@ Enumerates the audio device types.
Implements audio volume and audio device management. Before calling any API in **AudioManager**, you must use [getAudioManager](#audiogetaudiomanager) to create an **AudioManager** instance.
Sets the volume for a stream. This API uses an asynchronous callback to return the result.
**Required permissions**: ohos.permission.ACCESS_NOTIFICATION_POLICY (This permission is required only for muting or unmuting the ringer when **volumeType** is set to **AudioVolumeType.RINGTONE**.)
Sets the volume for a stream. This API uses a promise to return the result.
**Required permissions**: ohos.permission.ACCESS_NOTIFICATION_POLICY (This permission is required only for muting or unmuting the ringer when **volumeType** is set to **AudioVolumeType.RINGTONE**.)
Mutes or unmutes a stream. This API uses an asynchronous callback to return the result.
**Required permissions**: ohos.permission.ACCESS_NOTIFICATION_POLICY (This permission is required only for muting or unmuting the ringer when **volumeType** is set to **AudioVolumeType.RINGTONE**.)
Mutes or unmutes a stream. This API uses a promise to return the result.
**Required permissions**: ohos.permission.ACCESS_NOTIFICATION_POLICY (This permission is required only for muting or unmuting the ringer when **volumeType** is set to **AudioVolumeType.RINGTONE**.)
This is a system API and cannot be called by third-party applications.
**System API**: This is a system API.
Currently, when multiple **AudioManager** instances are used in a single process, only the subscription of the last instance takes effect, and the subscription of other instances is overwritten (even if the last instance does not initiate a subscription). Therefore, you are advised to use a single **AudioManager** instance.
...
...
@@ -1630,11 +1781,11 @@ Currently, when multiple **AudioManager** instances are used in a single process
**Example**
```
```js
audioManager.on('volumeChange',(volumeEvent)=>{
console.log(`VolumeType of stream: ` + volumeEvent.volumeType);
| type | string | Yes | Event type. The value **ringerModeChange** means the ringer mode change event, which is triggered when a ringer mode change is detected.|
| callback | Callback<[AudioRingMode](#audioringmode)> | Yes | Callback used to return the updated ringer mode. |
| callback | Callback<[AudioRingMode](#audioringmode)> | Yes | Callback used to return the system volume change event. |
console.log(`Promise returned to indicate a successful setting of the audio scene mode.`);
console.info('Promise returned to indicate a successful setting of the audio scene mode.');
}).catch((err)=>{
console.log(`Failed to set the audio scene mode`);
console.error(`Failed to set the audio scene mode ${err}`);
});
```
...
...
@@ -1857,13 +2008,13 @@ Obtains the audio scene. This API uses an asynchronous callback to return the re
**Example**
```
```js
audioManager.getAudioScene((err,value)=>{
if(err){
console.error(`Failed to obtain the audio scene mode. ${err.message}`);
console.error(`Failed to obtain the audio scene mode. ${err}`);
return;
}
console.log(`Callback invoked to indicate that the audio scene mode is obtained.` + value);
console.info(`Callback invoked to indicate that the audio scene mode is obtained ${value}.`);
});
```
...
...
@@ -1884,388 +2035,1319 @@ Obtains the audio scene. This API uses a promise to return the result.
**Example**
```
```js
audioManager.getAudioScene().then((value)=>{
console.log(`Promise returned to indicate that the audio scene mode is obtained.` + value);
console.info(`Promise returned to indicate that the audio scene mode is obtained ${value}.`);
}).catch((err)=>{
console.log(`Failed to obtain the audio scene mode`);
console.error(`Failed to obtain the audio scene mode ${err}`);
});
```
## AudioStreamManager<sup>9+</sup>
Implements audio stream management. Before calling any API of **AudioStreamManager**, you must use **[getStreamManager](#audiogetstreammanager9)** to obtain an **AudioStreamManager** instance.
| callback | AsyncCallback<[AudioRendererChangeInfoArray](#audiorendererchangeinfoarray9)> | Yes | Callback used to return the audio renderer information.|
| networkId | string | Yes | Network ID of the device. The network ID of the local device is **audio.LOCAL_NETWORK_ID**. You can call **getRoutingManager().getDevices()** to obtain all network IDs. |
| callback | AsyncCallback<[VolumeGroupInfos](#volumegroupinfos9)> | Yes | Callback used to return the volume group information array.|
| networkId | string | Yes | Network ID of the device. The network ID of the local device is **audio.LOCAL_NETWORK_ID**. You can call **getRoutingManager().getDevices()** to obtain all network IDs. |
| callback | AsyncCallback<[AudioCapturerChangeInfoArray](#audiocapturerchangeinfoarray9)> | Yes | Callback used to return the audio capturer information.|
console.error('Failed to abandonIndependentInterrupt');
});
}
```
## AudioGroupManager<sup>9+</sup>
Manages the volume of an audio group. Before calling any API in **AudioGroupManager**, you must use [getGroupManager](#getgroupmanager9) to create an **AudioGroupManager** instance.
| callback | AsyncCallback<boolean> | Yes | Callback used to return the mute status of the stream. The value **true** means that the stream is muted, and **false** means the opposite.|
| Promise<boolean> | Promise used to return the mute status of the stream. The value **true** means that the stream is muted, and **false** means the opposite.|
console.info(`Promise returned to indicate that the mute status of the stream is obtained ${value}.`);
});
```
## AudioStreamManager<sup>9+</sup>
Implements audio stream management. Before calling any API of **AudioStreamManager**, you must use **[getStreamManager](#audiogetstreammanager9)** to obtain an **AudioStreamManager** instance.
| callback | AsyncCallback<[AudioRendererChangeInfoArray](#audiorendererchangeinfoarray9)> | Yes | Callback used to return the audio renderer information.|
| callback | AsyncCallback<[AudioCapturerChangeInfoArray](#audiocapturerchangeinfoarray9)> | Yes | Callback used to return the audio capturer information.|
console.info('######### CapturerChange Off is called #########');
```
## AudioRoutingManager<sup>9+</sup>
### on('audioRendererChange')<sup>9+</sup>
Implements audio routing management. Before calling any API in **AudioRoutingManager**, you must use [getRoutingManager](#getroutingmanager9) to create an **AudioRoutingManager** instance.
| type | string | Yes | Event type. The value **deviceChange** means the device change event, which is triggered when a device connection status change is detected.|
| type | string | Yes | Event type. The value **deviceChange** means the device change event, which is triggered when a device connection status change is detected.|
| callback | Callback<boolean> | Yes | Callback used to return the result. If the system supports the low latency configuration, **true** is returned. Otherwise, **false** is returned.|
Selects an audio output device based on the filter criteria. Currently, only one output device can be selected. This API uses an asynchronous callback to return the result.
var audioStreamManager = audioManager.getStreamManager();
Selects an audio output device based on the filter criteria. Currently, only one output device can be selected. This API uses a promise to return the result.
| Promise<void>| Promise used to return the result. If the system supports the low latency configuration, **true** is returned. Otherwise, **false** is returned.|
| networkId<sup>9+</sup> | string | Yes | No | ID of the device network.<br>This is a system API and cannot be called by third-party applications.|
| interruptGroupId<sup>9+</sup> | number | Yes | No | ID of the interruption group to which the device belongs.<br>This is a system API and cannot be called by third-party applications.|
| volumeGroupId<sup>9+</sup> | number | Yes | No | ID of the volume group to which the device belongs.<br>This is a system API and cannot be called by third-party applications.|
## AudioDeviceDescriptors
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...
@@ -2418,7 +3501,7 @@ Array of [AudioDeviceDescriptor](#audiodevicedescriptor), which is read-only.
**Example**
```
```js
importaudiofrom'@ohos.multimedia.audio';
functiondisplayDeviceProp(value){
...
...
@@ -2430,16 +3513,42 @@ var deviceRoleValue = null;
Provides APIs for audio rendering. Before calling any API in **AudioRenderer**, you must use [createAudioRenderer](#audiocreateaudiorenderer8) to create an **AudioRenderer** instance.
...
...
@@ -2454,7 +3563,7 @@ Provides APIs for audio rendering. Before calling any API in **AudioRenderer**,
**Example**
```
```js
varstate=audioRenderer.state;
```
...
...
@@ -2474,12 +3583,12 @@ Obtains the renderer information of this **AudioRenderer** instance. This API us
| type | string | Yes | Event type. The value **markReach** means the mark reached event, which is triggered when the number of frames captured reaches the value of the **frame** parameter.|
| frame | number | Yes | Number of frames to trigger the event. The value must be greater than **0**. |
| callback | (position: number) => {} | Yes | Callback invoked when the event is triggered. |
| callback | Callback<number> | Yes | Callback invoked when the event is triggered. |
**Example**
```
```js
audioRenderer.on('markReach',1000,(position)=>{
if(position==1000){
console.log(`ON Triggered successfully`);
console.info('ON Triggered successfully');
}
});
```
...
...
@@ -3376,13 +4483,13 @@ Unsubscribes from mark reached events.
| type | string | Yes | Event type. The value **periodReach** means the period reached event, which is triggered when the period of frame rendering reaches the value of the **frame** parameter.|
| frame | number | Yes | Period during which frame rendering is listened. The value must be greater than **0**. |
| callback | (position: number) => {} | Yes | Callback invoked when the event is triggered. |
| frame | number | Yes | Number of frames to trigger the event. The value must be greater than **0**. |
| callback | Callback<number> | Yes | Callback invoked when the event is triggered. |
**Example**
```
```js
audioRenderer.on('periodReach',1000,(position)=>{
if(position==1000){
console.log(`ON Triggered successfully`);
console.info('ON Triggered successfully');
}
});
```
...
...
@@ -3422,7 +4529,7 @@ Unsubscribes from period reached events.
**Example**
```
```js
audioRenderer.off('periodReach')
```
...
...
@@ -3443,46 +4550,17 @@ Subscribes to state change events.
**Example**
```
```js
audioRenderer.on('stateChange',(state)=>{
if(state==1){
console.log(`audio renderer state is: STATE_PREPARED`);
console.info('audio renderer state is: STATE_PREPARED');
}
if(state==2){
console.log(`audio renderer state is: STATE_RUNNING`);
console.info('audio renderer state is: STATE_RUNNING');
var viewObject = new DataView(audioRendererDataInfo.buffer);
rlen += ss.readSync(viewObject.buffer);
console.info(`AudioRenderLog: bytes read from file: ` + rlen);
})
```
## AudioCapturer<sup>8+</sup>
Provides APIs for audio capture. Before calling any API in **AudioCapturer**, you must use [createAudioCapturer](#audiocreateaudiocapturer8) to create an **AudioCapturer** instance.
...
...
@@ -3497,7 +4575,7 @@ Provides APIs for audio capture. Before calling any API in **AudioCapturer**, yo
**Example**
```
```js
varstate=audioCapturer.state;
```
...
...
@@ -3517,14 +4595,14 @@ Obtains the capturer information of this **AudioCapturer** instance. This API us
| type | string | Yes | Event type. The value **markReach** means the mark reached event, which is triggered when the number of frames captured reaches the value of the **frame** parameter. |
| frame | number | Yes | Number of frames to trigger the event. The value must be greater than **0**. |
| callback | position: number) => {} | Yes | Callback invoked when the event is triggered.|
| type | string | Yes | Event type. The value **markReach** means the mark reached event, which is triggered when the number of frames captured reaches the value of the **frame** parameter. |
| frame | number | Yes | Number of frames to trigger the event. The value must be greater than **0**. |
| callback | Callback<number> | Yes | Callback invoked when the event is triggered.|
**Example**
```
```js
audioCapturer.on('markReach',1000,(position)=>{
if(position==1000){
console.log(`ON Triggered successfully`);
console.info('ON Triggered successfully');
}
});
```
...
...
@@ -4032,13 +5108,13 @@ Unsubscribes from mark reached events.
| type | string | Yes | Event type. The value **periodReach** means the period reached event, which is triggered when the period of frame capturing reaches the value of the **frame** parameter. |
| frame | number | Yes | Period during which frame capturing is listened. The value must be greater than **0**. |
| callback | (position: number) => {} | Yes | Callback invoked when the event is triggered. |
| type | string | Yes | Event type. The value **periodReach** means the period reached event, which is triggered when the period of frame rendering reaches the value of the **frame** parameter.|
| frame | number | Yes | Number of frames to trigger the event. The value must be greater than **0**. |
| callback | Callback<number> | Yes | Callback invoked when the event is triggered. |
**Example**
```
```js
audioCapturer.on('periodReach',1000,(position)=>{
if(position==1000){
console.log(`ON Triggered successfully`);
console.info('ON Triggered successfully');
}
});
```
...
...
@@ -4078,7 +5154,7 @@ Unsubscribes from period reached events.
**Example**
```
```js
audioCapturer.off('periodReach')
```
...
...
@@ -4099,13 +5175,13 @@ Subscribes to state change events.
**Example**
```
```js
audioCapturer.on('stateChange',(state)=>{
if(state==1){
console.log(`audio capturer state is: STATE_PREPARED`);
console.info('audio capturer state is: STATE_PREPARED');
}
if(state==2){
console.log(`audio capturer state is: STATE_RUNNING`);
console.info('audio capturer state is: STATE_RUNNING');
