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提交 ee4a9432 编写于 作者: H hwgaizw
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audio js api Signed-off-by: hwgaizw <gaizhengwei@huawei.com> 

Signed-off-by: Nhwgaizw <gaizhengwei@huawei.com>
Change-Id: I011538971028418e6b6c2001e083f8a465b1bcfd
上级 3004db52
展开全部 隐藏空白更改
内联 并排
Showing with 569 addition and 606 deletion
zh-cn/application-dev/media/audio-recorder.md
浏览文件 @ ee4a9432
......@@ -18,10 +18,6 @@
详细API含义可参考：[媒体服务API文档AudioRecorder](../reference/apis/js-apis-media.md)
### 开发者示例
端到端开发者示例请参考：https://gitee.com/openharmony/app_samples/blob/master/media/Recorder/entry/src/main/ets/MainAbility/pages/RecordPage.ets
### 全流程场景
包含流程：创建实例，设置录制参数，录制音频，暂停录制，恢复录制，停止录制，释放资源等流程。
......@@ -29,46 +25,49 @@
```js
import media from '@ohos.multimedia.media'
import mediaLibrary from '@ohos.multimedia.mediaLibrary'
let testFdNumber;
function SetCallBack(audioRecorder) {
audioRecorder.on('prepare', () => { // 设置'prepare'事件回调
console.log('prepare success');
// 录制界面可切换至已准备好，可点击录制按钮进行录制
export class AudioRecorderDemo {
private testFdNumber; // 用于保存fd地址
// 设置音频录制相关回调函数
setCallBack(audioRecorder) {
audioRecorder.on('prepare', () => { // 设置'prepare'事件回调
console.log('prepare success');
audioRecorder.start(); // 调用start方法开始录制，并触发start回调
});
audioRecorder.on('start', () => { // 设置'start'事件回调
console.log('audio recorder start success');
// 将录制按钮切换至可暂停状态
audioRecorder.on('start', () => { // 设置'start'事件回调
console.log('audio recorder start success');
audioRecorder.pause(); // 调用pause方法暂停录制，并触发pause回调
});
audioRecorder.on('pause', () => { // 设置'pause'事件回调
console.log('audio recorder pause success');
// 将录制按钮切换至可录制状态
audioRecorder.on('pause', () => { // 设置'pause'事件回调
console.log('audio recorder pause success');
audioRecorder.resume(); // 调用resume方法恢复录制，并触发resume回调
});
audioRecorder.on('resume', () => { // 设置'resume'事件回调
console.log('audio recorder resume success');
// 将录制按钮切换至可暂停状态
audioRecorder.on('resume', () => { // 设置'resume'事件回调
console.log('audio recorder resume success');
audioRecorder.stop(); // 调用stop方法停止录制，并触发stop回调
});
audioRecorder.on('stop', () => { // 设置'stop'事件回调
console.log('audio recorder stop success');
audioRecorder.on('stop', () => { // 设置'stop'事件回调
console.log('audio recorder stop success');
audioRecorder.reset(); // 调用reset方法重置录制，并触发reset回调
});
audioRecorder.on('release', () => { // 设置'release'事件回调
console.log('audio recorder release success');
audioRecorder.on('reset', () => { // 设置'reset'事件回调
console.log('audio recorder reset success');
audioRecorder.release(); // 调用release方法，释放资源，并触发release回调
});
audioRecorder.on('reset', () => { // 设置'reset'事件回调
console.log('audio recorder reset success');
// 需要重新设置录制参数才能再次录制
audioRecorder.on('release', () => { // 设置'release'事件回调
console.log('audio recorder release success');
audioRecorder = undefined;
});
audioRecorder.on('error', (error) => { // 设置'error'事件回调
console.info(`audio error called, errName is ${error.name}`);
console.info(`audio error called, errCode is ${error.code}`);
console.info(`audio error called, errMessage is ${error.message}`);
audioRecorder.on('error', (error) => { // 设置'error'事件回调
console.info(`audio error called, errName is ${error.name}`);
console.info(`audio error called, errCode is ${error.code}`);
console.info(`audio error called, errMessage is ${error.message}`);
});
}
}
// pathName是传入的录制文件名，例如：01.mp3，生成后的文件地址：/storage/media/100/local/files/Movies/01.mp3
// 使用mediaLibrary需要添加以下权限, ohos.permission.MEDIA_LOCATION、ohos.permission.WRITE_MEDIA、ohos.permission.READ_MEDIA
async function getFd(pathName) {
// pathName是传入的录制文件名，例如：01.mp3，生成后的文件地址：/storage/media/100/local/files/Video/01.mp3
// 使用mediaLibrary需要添加以下权限, ohos.permission.MEDIA_LOCATION、ohos.permission.WRITE_MEDIA、ohos.permission.READ_MEDIA
async getFd(pathName) {
let displayName = pathName;
const mediaTest = mediaLibrary.getMediaLibrary();
let fileKeyObj = mediaLibrary.FileKey;
......@@ -76,49 +75,37 @@ async function getFd(pathName) {
let publicPath = await mediaTest.getPublicDirectory(mediaLibrary.DirectoryType.DIR_VIDEO);
let dataUri = await mediaTest.createAsset(mediaType, displayName, publicPath);
if (dataUri != undefined) {
let args = dataUri.id.toString();
let fetchOp = {
selections : fileKeyObj.ID + "=?",
selectionArgs : [args],
}
let fetchFileResult = await mediaTest.getFileAssets(fetchOp);
let fileAsset = await fetchFileResult.getAllObject();
let fdNumber = await fileAsset[0].open('Rw');
fdNumber = "fd://" + fdNumber.toString();
testFdNumber = fdNumber;
let args = dataUri.id.toString();
let fetchOp = {
selections : fileKeyObj.ID + "=?",
selectionArgs : [args],
}
let fetchFileResult = await mediaTest.getFileAssets(fetchOp);
let fileAsset = await fetchFileResult.getAllObject();
let fdNumber = await fileAsset[0].open('Rw');
this.testFdNumber = "fd://" + fdNumber.toString();
}
}
async audioRecorderDemo() {
// 1.创建实例
let audioRecorder = media.createAudioRecorder();
// 2.设置回调
this.setCallBack(audioRecorder);
await this.getFd('01.mp3'); // 调用getFd方法获取需要录制文件的fd地址
// 3.设置录制参数
let audioRecorderConfig = {
audioEncodeBitRate : 22050,
audioSampleRate : 22050,
numberOfChannels : 2,
uri : this.testFdNumber, // testFdNumber由getFd生成
location : { latitude : 30, longitude : 130},
audioEncoderMime : media.CodecMimeType.AUDIO_AAC,
fileFormat : media.ContainerFormatType.CFT_MPEG_4A,
}
audioRecorder.prepare(audioRecorderConfig); // 调用prepare方法，触发prepare回调函数
}
}
await getFd('01.mp3');
// 1.创建实例
let audioRecorder = media.createAudioRecorder();
// 2.设置回调
SetCallBack(audioRecorder);
// 3.设置录制参数
let audioRecorderConfig = {
audioEncoder : media.AudioEncoder.AAC_LC ,
audioEncodeBitRate : 22050,
audioSampleRate : 22050,
numberOfChannels : 2,
format : media.AudioOutputFormat.AAC_ADTS,
uri : testFdNumber, // testFdNumber由getFd生成
location : { latitude : 30, longitude : 130},
}
audioRecorder.prepare(audioRecorderConfig);
// 4.开始录制
audioRecorder.start(); // 需等待'prepare'事件回调完成后，才可调用start进行录制，触发'start'事件回调
// 5.暂停录制
audioRecorder.pause(); // 需等待'start'事件回调完成后，才可调用pause进行暂停，触发'pause'事件回调
// 6.恢复录制
audioRecorder.resume(); // 需等待'pause'事件回调完成后，才可调用resume进行录制，触发'resume'事件回调
// 7.停止录制
audioRecorder.stop(); // 需等待'start'或'resume'事件回调完成后，才可调用stop进行暂停，触发'stop'事件回调
// 8.重置录制
audioRecorder.reset(); // 触发'reset'事件回调后，重新进行prepare，才可重新录制
// 9.释放资源
audioRecorder.release(); // audioRecorder资源被销毁
audioRecorder = undefined;
```
### 正常录制场景
......@@ -128,29 +115,37 @@ audioRecorder = undefined;
```js
import media from '@ohos.multimedia.media'
import mediaLibrary from '@ohos.multimedia.mediaLibrary'
let testFdNumber;
function SetCallBack(audioRecorder) {
audioRecorder.on('prepare', () => { // 设置'prepare'事件回调
console.log('prepare success');
// 录制界面可切换至已准备好，可点击录制按钮进行录制
export class AudioRecorderDemo {
private testFdNumber; // 用于保存fd地址
// 设置音频录制相关回调函数
setCallBack(audioRecorder) {
audioRecorder.on('prepare', () => { // 设置'prepare'事件回调
console.log('prepare success');
audioRecorder.start(); // 调用start方法开始录制，并触发start回调
});
audioRecorder.on('start', () => { // 设置'start'事件回调
console.log('audio recorder start success');
// 将录制按钮切换至可暂停状态
});
audioRecorder.on('stop', () => { // 设置'stop'事件回调
console.log('audio recorder stop success');
});
audioRecorder.on('release', () => { // 设置'release'事件回调
console.log('audio recorder release success');
});
}
audioRecorder.on('start', () => { // 设置'start'事件回调
console.log('audio recorder start success');
audioRecorder.stop(); // 调用stop方法停止录制，并触发stop回调
});
audioRecorder.on('stop', () => { // 设置'stop'事件回调
console.log('audio recorder stop success');
audioRecorder.release(); // 调用release方法，释放资源，并触发release回调
});
audioRecorder.on('release', () => { // 设置'release'事件回调
console.log('audio recorder release success');
audioRecorder = undefined;
});
audioRecorder.on('error', (error) => { // 设置'error'事件回调
console.info(`audio error called, errName is ${error.name}`);
console.info(`audio error called, errCode is ${error.code}`);
console.info(`audio error called, errMessage is ${error.message}`);
});
}
// pathName是传入的录制文件名，例如：01.mp3，生成后的文件地址：/storage/media/100/local/files/Movies/01.mp3
// 使用mediaLibrary需要添加以下权限, ohos.permission.MEDIA_LOCATION、ohos.permission.WRITE_MEDIA、ohos.permission.READ_MEDIA
async function getFd(pathName) {
// pathName是传入的录制文件名，例如：01.mp3，生成后的文件地址：/storage/media/100/local/files/Video/01.mp3
// 使用mediaLibrary需要添加以下权限, ohos.permission.MEDIA_LOCATION、ohos.permission.WRITE_MEDIA、ohos.permission.READ_MEDIA
async getFd(pathName) {
let displayName = pathName;
const mediaTest = mediaLibrary.getMediaLibrary();
let fileKeyObj = mediaLibrary.FileKey;
......@@ -158,43 +153,37 @@ async function getFd(pathName) {
let publicPath = await mediaTest.getPublicDirectory(mediaLibrary.DirectoryType.DIR_VIDEO);
let dataUri = await mediaTest.createAsset(mediaType, displayName, publicPath);
if (dataUri != undefined) {
let args = dataUri.id.toString();
let fetchOp = {
selections : fileKeyObj.ID + "=?",
selectionArgs : [args],
}
let fetchFileResult = await mediaTest.getFileAssets(fetchOp);
let fileAsset = await fetchFileResult.getAllObject();
let fdNumber = await fileAsset[0].open('Rw');
fdNumber = "fd://" + fdNumber.toString();
testFdNumber = fdNumber;
let args = dataUri.id.toString();
let fetchOp = {
selections : fileKeyObj.ID + "=?",
selectionArgs : [args],
}
let fetchFileResult = await mediaTest.getFileAssets(fetchOp);
let fileAsset = await fetchFileResult.getAllObject();
let fdNumber = await fileAsset[0].open('Rw');
this.testFdNumber = "fd://" + fdNumber.toString();
}
}
async audioRecorderDemo() {
// 1.创建实例
let audioRecorder = media.createAudioRecorder();
// 2.设置回调
this.setCallBack(audioRecorder);
await this.getFd('01.mp3'); // 调用getFd方法获取需要录制文件的fd地址
// 3.设置录制参数
let audioRecorderConfig = {
audioEncodeBitRate : 22050,
audioSampleRate : 22050,
numberOfChannels : 2,
uri : this.testFdNumber, // testFdNumber由getFd生成
location : { latitude : 30, longitude : 130},
audioEncoderMime : media.CodecMimeType.AUDIO_AAC,
fileFormat : media.ContainerFormatType.CFT_MPEG_4A,
}
audioRecorder.prepare(audioRecorderConfig); // 调用prepare方法，触发prepare回调函数
}
}
await getFd('01.mp3');
// 1.创建实例
let audioRecorder = media.createAudioRecorder();
// 2.设置回调
SetCallBack(audioRecorder);
// 3.设置录制参数
let audioRecorderConfig = {
audioEncoder : media.AudioEncoder.AAC_LC ,
audioEncodeBitRate : 22050,
audioSampleRate : 22050,
numberOfChannels : 2,
format : media.AudioOutputFormat.AAC_ADTS,
uri : testFdNumber, // testFdNumber由getFd生成
location : { latitude : 30, longitude : 130},
}
audioRecorder.prepare(audioRecorderConfig)
// 4.开始录制
audioRecorder.start(); // 需等待'prepare'事件回调完成后，才可调用start进行录制，触发'start'事件回调
// 5.停止录制
audioRecorder.stop(); // 需等待'start'或'resume'事件回调完成后，才可调用stop进行暂停，触发'stop'事件回调
// 6.释放资源
audioRecorder.release(); // audioRecorder资源被销毁
audioRecorder = undefined;
```
## 相关实例
......
zh-cn/application-dev/media/video-recorder.md
浏览文件 @ ee4a9432
......@@ -25,12 +25,11 @@
```js
import media from '@ohos.multimedia.media'
import mediaLibrary from '@ohos.multimedia.mediaLibrary'
let testFdNumber;
// pathName是传入的录制文件名，例如：01.mp4，生成后的文件地址：/storage/media/100/local/files/Movies/01.mp4
// 使用mediaLibrary需要添加以下权限, ohos.permission.MEDIA_LOCATION、ohos.permission.WRITE_MEDIA、ohos.permission.READ_MEDIA
async function getFd(pathName) {
export class VideoRecorderDemo {
private testFdNumber; // 用于保存fd地址
// pathName是传入的录制文件名，例如：01.mp3，生成后的文件地址：/storage/media/100/local/files/Video/01.mp4
// 使用mediaLibrary需要添加以下权限, ohos.permission.MEDIA_LOCATION、ohos.permission.WRITE_MEDIA、ohos.permission.READ_MEDIA
async getFd(pathName) {
let displayName = pathName;
const mediaTest = mediaLibrary.getMediaLibrary();
let fileKeyObj = mediaLibrary.FileKey;
......@@ -38,111 +37,116 @@ async function getFd(pathName) {
let publicPath = await mediaTest.getPublicDirectory(mediaLibrary.DirectoryType.DIR_VIDEO);
let dataUri = await mediaTest.createAsset(mediaType, displayName, publicPath);
if (dataUri != undefined) {
let args = dataUri.id.toString();
let fetchOp = {
selections : fileKeyObj.ID + "=?",
selectionArgs : [args],
}
let fetchFileResult = await mediaTest.getFileAssets(fetchOp);
let fileAsset = await fetchFileResult.getAllObject();
let fdNumber = await fileAsset[0].open('Rw');
fdNumber = "fd://" + fdNumber.toString();
testFdNumber = fdNumber;
let args = dataUri.id.toString();
let fetchOp = {
selections : fileKeyObj.ID + "=?",
selectionArgs : [args],
}
let fetchFileResult = await mediaTest.getFileAssets(fetchOp);
let fileAsset = await fetchFileResult.getAllObject();
let fdNumber = await fileAsset[0].open('Rw');
this.testFdNumber = "fd://" + fdNumber.toString();
}
}
// 当发生错误上上报的错误回调接口
failureCallback(error) {
console.info('error happened, error name is ' + error.name);
console.info('error happened, error code is ' + error.code);
console.info('error happened, error message is ' + error.message);
}
// 当发生异常时，系统调用的错误回调接口
catchCallback(error) {
console.info('catch error happened, error name is ' + error.name);
console.info('catch error happened, error code is ' + error.code);
console.info('catch error happened, error message is ' + error.message);
}
async videoRecorderDemo() {
let videoRecorder = null; // videoRecorder空对象在createVideoRecorder成功后赋值
let surfaceID = null; // 用于保存getInputSurface返回的surfaceID
// 获取需要录制的视频的fd地址
await this.getFd('01.mp4');
// 录制相关参数配置
let videoProfile = {
audioBitrate : 48000,
audioChannels : 2,
audioCodec : 'audio/mp4a-latm',
audioSampleRate : 48000,
fileFormat : 'mp4',
videoBitrate : 48000,
videoCodec : 'video/mp4v-es',
videoFrameWidth : 640,
videoFrameHeight : 480,
videoFrameRate : 30
}
}
await getFd('01.mp4');
let videoProfile = {
audioBitrate : 48000,
audioChannels : 2,
audioCodec : 'audio/mp4a-latm',
audioSampleRate : 48000,
fileFormat : 'mp4',
videoBitrate : 48000,
videoCodec : 'video/mp4v-es',
videoFrameWidth : 640,
videoFrameHeight : 480,
videoFrameRate : 30
}
let videoConfig = {
audioSourceType : 1,
videoSourceType : 0,
profile : videoProfile,
url : testFdNumber, // testFdNumber由getFd生成
orientationHint : 0,
location : { latitude : 30, longitude : 130 },
}
// 当发生错误上上报的错误回调接口
function failureCallback(error) {
console.info('error happened, error name is ' + error.name);
console.info('error happened, error code is ' + error.code);
console.info('error happened, error message is ' + error.message);
}
// 当发生异常时，系统调用的错误回调接口
function catchCallback(error) {
console.info('catch error happened, error name is ' + error.name);
console.info('catch error happened, error code is ' + error.code);
console.info('catch error happened, error message is ' + error.message);
}
let videoRecorder = null; // videoRecorder空对象在createVideoRecorder成功后赋值
let surfaceID = null; // 用于保存getInputSurface返回的surfaceID
// 创建videoRecorder对象
await media.createVideoRecorder().then((recorder) => {
console.info('case createVideoRecorder called');
if (typeof (recorder) != 'undefined') {
let videoConfig = {
audioSourceType : 1,
videoSourceType : 0,
profile : videoProfile,
url : this.testFdNumber, // testFdNumber由getFd生成
orientationHint : 0,
location : { latitude : 30, longitude : 130 },
}
// 创建videoRecorder对象
await media.createVideoRecorder().then((recorder) => {
console.info('case createVideoRecorder called');
if (typeof (recorder) != 'undefined') {
videoRecorder = recorder;
console.info('createVideoRecorder success');
} else {
} else {
console.info('createVideoRecorder failed');
}
}, failureCallback).catch(catchCallback);
// 获取surfaceID并保存下来传递给camera相关接口
await videoRecorder.getInputSurface().then((surface) => {
console.info('getInputSurface success');
surfaceID = surface;
}, failureCallback).catch(catchCallback);
// 视频录制依赖相机相关接口，以下需要先调用相机起流接口后才能继续执行
// 视频录制启动接口
await videoRecorder.start().then(() => {
console.info('start success');
}, failureCallback).catch(catchCallback);
// 调用pause接口时需要暂停camera出流
await videoRecorder.pause().then(() => {
console.info('pause success');
}, failureCallback).catch(catchCallback);
// 调用resume接口时需要恢复camera出流
await videoRecorder.resume().then(() => {
console.info('resume success');
}, failureCallback).catch(catchCallback);
// 停止camera出流后，停止视频录制
await videoRecorder.stop().then(() => {
console.info('stop success');
}, failureCallback).catch(catchCallback);
// 重置录制相关配置
await videoRecorder.reset().then(() => {
console.info('reset success');
}, failureCallback).catch(catchCallback);
// 释放视频录制相关资源并释放camera对象相关资源
await videoRecorder.release().then(() => {
console.info('release success');
}, failureCallback).catch(catchCallback);
// 相关对象置null
videoRecorder = null;
surfaceID = null;
}
}, this.failureCallback).catch(this.catchCallback);
// 调用prepare完成视频录制前的准备工作
await videoRecorder.prepare(videoConfig).then(() => {
console.info('prepare success');
}, this.failureCallback).catch(this.catchCallback);
// 获取surfaceID并保存下来传递给camera相关接口
await videoRecorder.getInputSurface().then((surface) => {
console.info('getInputSurface success');
surfaceID = surface;
}, this.failureCallback).catch(this.catchCallback);
// 视频录制依赖相机相关接口，以下需要先调用相机起流接口后才能继续执行，具体的相机接口调用请参考sample用例
// 视频录制启动接口
await videoRecorder.start().then(() => {
console.info('start success');
}, this.failureCallback).catch(this.catchCallback);
// 调用pause接口时需要暂停camera出流
await videoRecorder.pause().then(() => {
console.info('pause success');
}, this.failureCallback).catch(this.catchCallback);
// 调用resume接口时需要恢复camera出流
await videoRecorder.resume().then(() => {
console.info('resume success');
}, this.failureCallback).catch(this.catchCallback);
// 停止camera出流后，停止视频录制
await videoRecorder.stop().then(() => {
console.info('stop success');
}, this.failureCallback).catch(this.catchCallback);
// 重置录制相关配置
await videoRecorder.reset().then(() => {
console.info('reset success');
}, this.failureCallback).catch(this.catchCallback);
// 释放视频录制相关资源并释放camera对象相关资源
await videoRecorder.release().then(() => {
console.info('release success');
}, this.failureCallback).catch(this.catchCallback);
// 相关对象置null
videoRecorder = undefined;
surfaceID = undefined;
}
}
```
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