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未验证 提交 38a72dff 编写于 作者: O openharmony_ci 提交者： Gitee
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!15528 翻译完成：15272+14407+15018+14814+14539+14658+14627+14642+15283 media API+文件夹更新 

Merge pull request !15528 from wusongqing/TR15272
上级 4c18015a eb9d2336
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en/application-dev/media/Readme-EN.md
浏览文件 @ 38a72dff
# Media
- Audio
- Audio and Video
- [Audio Overview](audio-overview.md)
- [Audio Playback Development](audio-playback.md)
- [Audio Recording Development](audio-recorder.md)
- [Audio Rendering Development](audio-renderer.md)
- [Audio Stream Management Development](audio-stream-manager.md)
- [Audio Capture Development](audio-capturer.md)
......@@ -12,8 +10,10 @@
- [Audio Interruption Mode Development](audio-interruptmode.md)
- [Volume Management Development](audio-volume-manager.md)
- [Audio Routing and Device Management Development](audio-routing-manager.md)
- Video
- [AVPlayer Development (Recommended)](avplayer-playback.md)
- [AVRecorder Development (Recommended)](avrecorder.md)
- [Audio Playback Development](audio-playback.md)
- [Audio Recording Development](audio-recorder.md)
- [Video Playback Development](video-playback.md)
- [Video Recording Development](video-recorder.md)
......
en/application-dev/media/audio-capturer.md
浏览文件 @ 38a72dff
......@@ -21,7 +21,7 @@ This following figure shows the audio capturer state transitions.
## Constraints
Before developing the audio data collection feature, configure the **ohos.permission.MICROPHONE** permission for your application. For details about permission configuration, see [Permission Application Guide](../security/accesstoken-guidelines.md).
Before developing the audio data collection feature, configure the **ohos.permission.MICROPHONE** permission for your application. For details, see [Permission Application Guide](../security/accesstoken-guidelines.md).
## How to Develop
......@@ -72,7 +72,7 @@ For details about the APIs, see [AudioCapturer in Audio Management](../reference
}
await audioCapturer.start();
let state = audioCapturer.state;
state = audioCapturer.state;
if (state == audio.AudioState.STATE_RUNNING) {
console.info('AudioRecLog: Capturer started');
} else {
......@@ -86,7 +86,7 @@ For details about the APIs, see [AudioCapturer in Audio Management](../reference
The following example shows how to write recorded data into a file.
```js
import fileio from '@ohos.fileio';
import fs from '@ohos.file.fs';
let state = audioCapturer.state;
// The read operation can be performed only when the state is STATE_RUNNING.
......@@ -96,31 +96,36 @@ For details about the APIs, see [AudioCapturer in Audio Management](../reference
}
const path = '/data/data/.pulse_dir/capture_js.wav'; // Path for storing the collected audio file.
let fd = fileio.openSync(path, 0o102, 0o777);
if (fd !== null) {
console.info('AudioRecLog: file fd created');
}
else{
console.info('AudioRecLog: file fd create : FAILED');
let file = fs.openSync(filePath, 0o2);
let fd = file.fd;
if (file !== null) {
console.info('AudioRecLog: file created');
} else {
console.info('AudioRecLog: file create : FAILED');
return;
}
fd = fileio.openSync(path, 0o2002, 0o666);
if (fd !== null) {
console.info('AudioRecLog: file fd opened in append mode');
}
let numBuffersToCapture = 150; // Write data for 150 times.
let count = 0;
while (numBuffersToCapture) {
let bufferSize = await audioCapturer.getBufferSize();
let buffer = await audioCapturer.read(bufferSize, true);
let options = {
offset: count * this.bufferSize,
length: this.bufferSize
}
if (typeof(buffer) == undefined) {
console.info('AudioRecLog: read buffer failed');
} else {
let number = fileio.writeSync(fd, buffer);
let number = fs.writeSync(fd, buffer, options);
console.info(`AudioRecLog: data written: ${number}`);
}
}
numBuffersToCapture--;
count++;
}
```
......@@ -178,18 +183,18 @@ For details about the APIs, see [AudioCapturer in Audio Management](../reference
// Obtain the audio capturer information.
let audioCapturerInfo : audio.AuduioCapturerInfo = await audioCapturer.getCapturerInfo();
// Obtain the audio stream information.
let audioStreamInfo : audio.AudioStreamInfo = await audioCapturer.getStreamInfo();
// Obtain the audio stream ID.
let audioStreamId : number = await audioCapturer.getAudioStreamId();
// Obtain the Unix timestamp, in nanoseconds.
let audioTime : number = await audioCapturer.getAudioTime();
// Obtain a proper minimum buffer size.
let bufferSize : number = await audioCapturer.getBuffersize();
let bufferSize : number = await audioCapturer.getBufferSize();
```
7. (Optional) Use **on('markReach')** to subscribe to the mark reached event, and use **off('markReach')** to unsubscribe from the event.
......
en/application-dev/media/audio-playback.md
浏览文件 @ 38a72dff
......@@ -38,7 +38,7 @@ For details about the **src** types supported by **AudioPlayer**, see the [src a
```js
import media from '@ohos.multimedia.media'
import fileIO from '@ohos.fileio'
import fs from '@ohos.file.fs'
// Print the stream track information.
function printfDescription(obj) {
......@@ -112,14 +112,8 @@ async function audioPlayerDemo() {
let pathDir = "/data/storage/el2/base/haps/entry/files" // The path used here is an example. Obtain the path based on project requirements.
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\01.mp3 /data/app/el2/100/base/ohos.acts.multimedia.audio.audioplayer/haps/entry/files" command.
let path = pathDir + '/01.mp3'
await fileIO.open(path).then((fdNumber) => {
fdPath = fdPath + '' + fdNumber;
console.info('open fd success fd is' + fdPath);
}, (err) => {
console.info('open fd failed err is' + err);
}).catch((err) => {
console.info('open fd failed err is' + err);
});
let file = await fs.open(path);
fdPath = fdPath + '' + file.fd;
audioPlayer.src = fdPath; // Set the src attribute and trigger the 'dataLoad' event callback.
}
```
......@@ -128,7 +122,7 @@ async function audioPlayerDemo() {
```js
import media from '@ohos.multimedia.media'
import fileIO from '@ohos.fileio'
import fs from '@ohos.file.fs'
export class AudioDemo {
// Set the player callbacks.
......@@ -154,14 +148,8 @@ export class AudioDemo {
let pathDir = "/data/storage/el2/base/haps/entry/files" // The path used here is an example. Obtain the path based on project requirements.
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\01.mp3 /data/app/el2/100/base/ohos.acts.multimedia.audio.audioplayer/haps/entry/files" command.
let path = pathDir + '/01.mp3'
await fileIO.open(path).then((fdNumber) => {
fdPath = fdPath + '' + fdNumber;
console.info('open fd success fd is' + fdPath);
}, (err) => {
console.info('open fd failed err is' + err);
}).catch((err) => {
console.info('open fd failed err is' + err);
});
let file = await fs.open(path);
fdPath = fdPath + '' + file.fd;
audioPlayer.src = fdPath; // Set the src attribute and trigger the 'dataLoad' event callback.
}
}
......@@ -171,7 +159,7 @@ export class AudioDemo {
```js
import media from '@ohos.multimedia.media'
import fileIO from '@ohos.fileio'
import fs from '@ohos.file.fs'
export class AudioDemo {
// Set the player callbacks.
......@@ -202,14 +190,8 @@ export class AudioDemo {
let pathDir = "/data/storage/el2/base/haps/entry/files" // The path used here is an example. Obtain the path based on project requirements.
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\02.mp3 /data/app/el2/100/base/ohos.acts.multimedia.audio.audioplayer/haps/entry/files" command.
let nextpath = pathDir + '/02.mp3'
await fileIO.open(nextpath).then((fdNumber) => {
nextFdPath = nextFdPath + '' + fdNumber;
console.info('open fd success fd is' + nextFdPath);
}, (err) => {
console.info('open fd failed err is' + err);
}).catch((err) => {
console.info('open fd failed err is' + err);
});
let nextFile = await fs.open(nextpath);
nextFdPath = nextFdPath + '' + nextFile.fd;
audioPlayer.src = nextFdPath; // Set the src attribute and trigger the 'dataLoad' event callback.
}
......@@ -220,14 +202,8 @@ export class AudioDemo {
let pathDir = "/data/storage/el2/base/haps/entry/files" // The path used here is an example. Obtain the path based on project requirements.
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\01.mp3 /data/app/el2/100/base/ohos.acts.multimedia.audio.audioplayer/haps/entry/files" command.
let path = pathDir + '/01.mp3'
await fileIO.open(path).then((fdNumber) => {
fdPath = fdPath + '' + fdNumber;
console.info('open fd success fd is' + fdPath);
}, (err) => {
console.info('open fd failed err is' + err);
}).catch((err) => {
console.info('open fd failed err is' + err);
});
let file = await fs.open(path);
fdPath = fdPath + '' + file.fd;
audioPlayer.src = fdPath; // Set the src attribute and trigger the 'dataLoad' event callback.
}
}
......@@ -237,7 +213,7 @@ export class AudioDemo {
```js
import media from '@ohos.multimedia.media'
import fileIO from '@ohos.fileio'
import fs from '@ohos.file.fs'
export class AudioDemo {
// Set the player callbacks.
......@@ -259,14 +235,8 @@ export class AudioDemo {
let pathDir = "/data/storage/el2/base/haps/entry/files" // The path used here is an example. Obtain the path based on project requirements.
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\01.mp3 /data/app/el2/100/base/ohos.acts.multimedia.audio.audioplayer/haps/entry/files" command.
let path = pathDir + '/01.mp3'
await fileIO.open(path).then((fdNumber) => {
fdPath = fdPath + '' + fdNumber;
console.info('open fd success fd is' + fdPath);
}, (err) => {
console.info('open fd failed err is' + err);
}).catch((err) => {
console.info('open fd failed err is' + err);
});
let file = await fs.open(path);
fdPath = fdPath + '' + file.fd;
audioPlayer.src = fdPath; // Set the src attribute and trigger the 'dataLoad' event callback.
}
}
......
en/application-dev/media/audio-renderer.md
浏览文件 @ 38a72dff
......@@ -33,33 +33,32 @@ The following figure shows the audio renderer state transitions.
For details about the APIs, see [AudioRenderer in Audio Management](../reference/apis/js-apis-audio.md#audiorenderer8).
1. Use **createAudioRenderer()** to create an **AudioRenderer** instance.
Set parameters of the **AudioRenderer** instance in **audioRendererOptions**. This instance is used to render audio, control and obtain the rendering status, and register a callback for notification.
Set parameters of the **AudioRenderer** instance in **audioRendererOptions**. This instance is used to render audio, control and obtain the rendering status, and register a callback for notification.
```js
import audio from '@ohos.multimedia.audio';
import audio from '@ohos.multimedia.audio';
let audioStreamInfo = {
samplingRate: audio.AudioSamplingRate.SAMPLE_RATE_44100,
channels: audio.AudioChannel.CHANNEL_1,
sampleFormat: audio.AudioSampleFormat.SAMPLE_FORMAT_S16LE,
encodingType: audio.AudioEncodingType.ENCODING_TYPE_RAW
}
let audioRendererInfo = {
content: audio.ContentType.CONTENT_TYPE_SPEECH,
usage: audio.StreamUsage.STREAM_USAGE_VOICE_COMMUNICATION,
rendererFlags: 0 // 0 is the extended flag bit of the audio renderer. The default value is 0.
let audioStreamInfo = {
samplingRate: audio.AudioSamplingRate.SAMPLE_RATE_44100,
channels: audio.AudioChannel.CHANNEL_1,
sampleFormat: audio.AudioSampleFormat.SAMPLE_FORMAT_S16LE,
encodingType: audio.AudioEncodingType.ENCODING_TYPE_RAW
}
let audioRendererInfo = {
content: audio.ContentType.CONTENT_TYPE_SPEECH,
usage: audio.StreamUsage.STREAM_USAGE_VOICE_COMMUNICATION,
rendererFlags: 0 // 0 is the extended flag bit of the audio renderer. The default value is 0.
}
let audioRendererOptions = {
streamInfo: audioStreamInfo,
rendererInfo: audioRendererInfo
}
let audioRendererOptions = {
streamInfo: audioStreamInfo,
rendererInfo: audioRendererInfo
}
let audioRenderer = await audio.createAudioRenderer(audioRendererOptions);
console.log("Create audio renderer success.");
let audioRenderer = await audio.createAudioRenderer(audioRendererOptions);
console.log("Create audio renderer success.");
```
2. Use **start()** to start audio rendering.
```js
......@@ -82,15 +81,15 @@ Set parameters of the **AudioRenderer** instance in **audioRendererOptions**. Th
}
}
```
The renderer state will be **STATE_RUNNING** once the audio renderer is started. The application can then begin reading buffers.
The renderer state will be **STATE_RUNNING** once the audio renderer is started. The application can then begin reading buffers.
3. Call **write()** to write data to the buffer.
Read the audio data to be played to the buffer. Call **write()** repeatedly to write the data to the buffer.
```js
import fileio from '@ohos.fileio';
import fs from '@ohos.file.fs';
import audio from '@ohos.multimedia.audio';
async function writeBuffer(buf) {
......@@ -109,35 +108,33 @@ Set parameters of the **AudioRenderer** instance in **audioRendererOptions**. Th
// Set a proper buffer size for the audio renderer. You can also select a buffer of another size.
const bufferSize = await audioRenderer.getBufferSize();
let dir = globalThis.fileDir; // You must use the sandbox path.
const path = dir + '/file_example_WAV_2MG.wav'; // The file to render is in the following path: /data/storage/el2/base/haps/entry/files/file_example_WAV_2MG.wav
console.info(`file path: ${ path}`);
let ss = fileio.createStreamSync(path, 'r');
const totalSize = fileio.statSync(path).size; // Size of the file to render.
let discardHeader = new ArrayBuffer(bufferSize);
ss.readSync(discardHeader);
let rlen = 0;
rlen += bufferSize;
let id = setInterval(() => {
if (audioRenderer.state == audio.AudioState.STATE_RELEASED) { // The rendering stops if the audio renderer is in the STATE_RELEASED state.
ss.closeSync();
await audioRenderer.stop();
clearInterval(id);
const filePath = dir + '/file_example_WAV_2MG.wav'; // The file to render is in the following path: /data/storage/el2/base/haps/entry/files/file_example_WAV_2MG.wav
console.info(`file filePath: ${ filePath}`);
let file = fs.openSync(filePath, fs.OpenMode.READ_ONLY);
let stat = await fs.stat(filePath); // Music file information.
let buf = new ArrayBuffer(bufferSize);
let len = stat.size % this.bufferSize == 0 ? Math.floor(stat.size / this.bufferSize) : Math.floor(stat.size / this.bufferSize + 1);
for (let i = 0;i < len; i++) {
let options = {
offset: i * this.bufferSize,
length: this.bufferSize
}
if (audioRenderer.state == audio.AudioState.STATE_RUNNING) {
if (rlen >= totalSize) { // The rendering stops if the file finishes reading.
ss.closeSync();
await audioRenderer.stop();
clearInterval(id);
}
let buf = new ArrayBuffer(bufferSize);
rlen += ss.readSync(buf);
console.info(`Total bytes read from file: ${rlen}`);
writeBuffer(buf);
} else {
console.info('check after next interval');
}
}, 30); // The timer interval is set based on the audio format. The unit is millisecond.
let readsize = await fs.read(file.fd, buf, options)
let writeSize = await new Promise((resolve,reject)=>{
this.audioRenderer.write(buf,(err,writeSize)=>{
if(err){
reject(err)
}else{
resolve(writeSize)
}
})
})
}
fs.close(file)
await audioRenderer.stop(); // Stop rendering.
await audioRenderer.release(); // Releases the resources.
```
4. (Optional) Call **pause()** or **stop()** to pause or stop rendering.
......@@ -242,7 +239,7 @@ Set parameters of the **AudioRenderer** instance in **audioRendererOptions**. Th
let audioTime : number = await audioRenderer.getAudioTime();
// Obtain a proper minimum buffer size.
let bufferSize : number = await audioRenderer.getBuffersize();
let bufferSize : number = await audioRenderer.getBufferSize();
// Obtain the audio renderer rate.
let renderRate : audio.AudioRendererRate = await audioRenderer.getRenderRate();
......@@ -424,35 +421,31 @@ Set parameters of the **AudioRenderer** instance in **audioRendererOptions**. Th
let dir = globalThis.fileDir; // You must use the sandbox path.
const path1 = dir + '/music001_48000_32_1.wav'; // The file to render is in the following path: /data/storage/el2/base/haps/entry/files/music001_48000_32_1.wav
console.info(`audioRender1 file path: ${ path1}`);
let ss1 = await fileio.createStream(path1,'r');
const totalSize1 = fileio.statSync(path1).size; // Size of the file to render.
console.info(`totalSize1 -------: ${totalSize1}`);
let discardHeader = new ArrayBuffer(bufferSize);
ss1.readSync(discardHeader);
let rlen = 0;
rlen += bufferSize;
let file1 = fs.openSync(path1, fs.OpenMode.READ_ONLY);
let stat = await fs.stat(path1); // Music file information.
let buf = new ArrayBuffer(bufferSize);
let len = stat.size % this.bufferSize == 0 ? Math.floor(stat.size / this.bufferSize) : Math.floor(stat.size / this.bufferSize + 1);
// 1.7 Render the original audio data in the buffer by using audioRender.
let id = setInterval(async () => {
if (audioRenderer1.state == audio.AudioState.STATE_RELEASED) { // The rendering stops if the audio renderer is in the STATE_RELEASED state.
ss1.closeSync();
audioRenderer1.stop();
clearInterval(id);
for (let i = 0;i < len; i++) {
let options = {
offset: i * this.bufferSize,
length: this.bufferSize
}
if (audioRenderer1.state == audio.AudioState.STATE_RUNNING) {
if (rlen >= totalSize1) { // The rendering stops if the file finishes reading.
ss1.closeSync();
await audioRenderer1.stop();
clearInterval(id);
}
let buf = new ArrayBuffer(bufferSize);
rlen += ss1.readSync(buf);
console.info(`Total bytes read from file: ${rlen}`);
await writeBuffer(buf, that.audioRenderer1);
} else {
console.info('check after next interval');
}
}, 30); // The timer interval is set based on the audio format. The unit is millisecond.
let readsize = await fs.read(file.fd, buf, options)
let writeSize = await new Promise((resolve,reject)=>{
this.audioRenderer1.write(buf,(err,writeSize)=>{
if(err){
reject(err)
}else{
resolve(writeSize)
}
})
})
}
fs.close(file1)
await audioRenderer1.stop(); // Stop rendering.
await audioRenderer1.release(); Releases the resources.
}
async runningAudioRender2(){
......@@ -499,36 +492,32 @@ Set parameters of the **AudioRenderer** instance in **audioRendererOptions**. Th
// 2.6 Read the original audio data file.
let dir = globalThis.fileDir; // You must use the sandbox path.
const path2 = dir + '/music002_48000_32_1.wav'; // The file to render is in the following path: /data/storage/el2/base/haps/entry/files/music002_48000_32_1.wav
console.error(`audioRender1 file path: ${ path2}`);
let ss2 = await fileio.createStream(path2,'r');
const totalSize2 = fileio.statSync(path2).size; // Size of the file to render.
console.error(`totalSize2 -------: ${totalSize2}`);
let discardHeader2 = new ArrayBuffer(bufferSize);
ss2.readSync(discardHeader2);
let rlen = 0;
rlen += bufferSize;
console.info(`audioRender2 file path: ${ path2}`);
let file2 = fs.openSync(path2, fs.OpenMode.READ_ONLY);
let stat = await fs.stat(path2); // Music file information.
let buf = new ArrayBuffer(bufferSize);
let len = stat.size % this.bufferSize == 0 ? Math.floor(stat.size / this.bufferSize) : Math.floor(stat.size / this.bufferSize + 1);
// 2.7 Render the original audio data in the buffer by using audioRender.
let id = setInterval(async () => {
if (audioRenderer2.state == audio.AudioState.STATE_RELEASED) { // The rendering stops if the audio renderer is in the STATE_RELEASED state.
ss2.closeSync();
that.audioRenderer2.stop();
clearInterval(id);
for (let i = 0;i < len; i++) {
let options = {
offset: i * this.bufferSize,
length: this.bufferSize
}
if (audioRenderer1.state == audio.AudioState.STATE_RUNNING) {
if (rlen >= totalSize2) { // The rendering stops if the file finishes reading.
ss2.closeSync();
await audioRenderer2.stop();
clearInterval(id);
}
let buf = new ArrayBuffer(bufferSize);
rlen += ss2.readSync(buf);
console.info(`Total bytes read from file: ${rlen}`);
await writeBuffer(buf, that.audioRenderer2);
} else {
console.info('check after next interval');
}
}, 30); // The timer interval is set based on the audio format. The unit is millisecond.
let readsize = await fs.read(file.fd, buf, options)
let writeSize = await new Promise((resolve,reject)=>{
this.audioRenderer2.write(buf,(err,writeSize)=>{
if(err){
reject(err)
}else{
resolve(writeSize)
}
})
})
}
fs.close(file2)
await audioRenderer2.stop(); // Stop rendering.
await audioRenderer2.release(); // Releases the resources.
}
async writeBuffer(buf, audioRender) {
......@@ -548,4 +537,4 @@ Set parameters of the **AudioRenderer** instance in **audioRendererOptions**. Th
await runningAudioRender2();
}
```
```
\ No newline at end of file
en/application-dev/media/avplayer-playback.md
浏览文件 @ 38a72dff
......@@ -104,7 +104,7 @@ The full playback process includes creating an instance, setting resources, sett
```js
import media from '@ohos.multimedia.media'
import audio from '@ohos.multimedia.audio';
import fileIO from '@ohos.fileio'
import fs from '@ohos.file.fs'
const TAG = 'AVPlayerDemo:'
export class AVPlayerDemo {
......@@ -223,14 +223,8 @@ export class AVPlayerDemo {
let pathDir = "/data/storage/el2/base/haps/entry/files" // The path used here is an example. Obtain the path based on project requirements.
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\H264_AAC.mp4 /data/app/el2/100/base/ohos.acts.multimedia.media.avplayer/haps/entry/files" command.
let path = pathDir + '/H264_AAC.mp4'
await fileIO.open(path).then((fdNumber) => {
fdPath = fdPath + '' + fdNumber
console.info('open fd success fd is' + fdPath)
}, (err) => {
console.info('open fd failed err is' + err)
}).catch((err) => {
console.info('open fd failed err is' + err)
});
let file = await fs.open(path)
fdPath = fdPath + '' + file.fd
this.avPlayer.url = fdPath
}
}
......@@ -240,7 +234,7 @@ export class AVPlayerDemo {
```js
import media from '@ohos.multimedia.media'
import fileIO from '@ohos.fileio'
import fs from '@ohos.file.fs'
const TAG = 'AVPlayerDemo:'
export class AVPlayerDemo {
......@@ -280,7 +274,7 @@ export class AVPlayerDemo {
break;
case 'stopped': // This state is reported upon a successful callback of stop().
console.info(TAG + 'state stopped called')
this.avPlayer.reset() // Call reset() to initialize the AVPlayer state.
this.avPlayer.release() // Call reset() to initialize the AVPlayer state.
break;
case 'released':
console.info(TAG + 'state released called')
......@@ -302,24 +296,18 @@ export class AVPlayerDemo {
let pathDir = "/data/storage/el2/base/haps/entry/files" // The path used here is an example. Obtain the path based on project requirements.
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\H264_AAC.mp4 /data/app/el2/100/base/ohos.acts.multimedia.media.avplayer/haps/entry/files" command.
let path = pathDir + '/H264_AAC.mp4'
await fileIO.open(path).then((fdNumber) => {
fdPath = fdPath + '' + fdNumber
console.info('open fd success fd is' + fdPath)
}, (err) => {
console.info('open fd failed err is' + err)
}).catch((err) => {
console.info('open fd failed err is' + err)
});
let file = await fs.open(path)
fdPath = fdPath + '' + file.fd
this.avPlayer.url = fdPath
}
}
```
### Switching to the Next Video Clip
### Looping a Song
```js
import media from '@ohos.multimedia.media'
import fileIO from '@ohos.fileio'
import fs from '@ohos.file.fs'
const TAG = 'AVPlayerDemo:'
export class AVPlayerDemo {
......@@ -362,7 +350,7 @@ export class AVPlayerDemo {
break;
case 'stopped': // This state is reported upon a successful callback of stop().
console.info(TAG + 'state stopped called')
this.avPlayer.reset() // Call reset() to initialize the AVPlayer state.
this.avPlayer.release() // Call reset() to initialize the AVPlayer state.
break;
case 'released':
console.info(TAG + 'state released called')
......@@ -393,23 +381,17 @@ export class AVPlayerDemo {
let pathDir = "/data/storage/el2/base/haps/entry/files" // The path used here is an example. Obtain the path based on project requirements.
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\H264_AAC.mp4 /data/app/el2/100/base/ohos.acts.multimedia.media.avplayer/haps/entry/files" command.
let path = pathDir + '/H264_AAC.mp4'
await fileIO.open(path).then((fdNumber) => {
fdPath = fdPath + '' + fdNumber
console.info('open fd success fd is' + fdPath)
}, (err) => {
console.info('open fd failed err is' + err)
}).catch((err) => {
console.info('open fd failed err is' + err)
});
let file = await fs.open(path)
fdPath = fdPath + '' + file.fd
this.avPlayer.url = fdPath
}
}
```
### Looping a Song
### Switching to the Next Video Clip
```js
import media from '@ohos.multimedia.media'
import fileIO from '@ohos.fileio'
import fs from '@ohos.file.fs'
const TAG = 'AVPlayerDemo:'
export class AVPlayerDemo {
......@@ -422,14 +404,8 @@ export class AVPlayerDemo {
let pathDir = "/data/storage/el2/base/haps/entry/files" // The path used here is an example. Obtain the path based on project requirements.
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\H264_MP3.mp4 /data/app/el2/100/base/ohos.acts.multimedia.media.avplayer/haps/entry/files" command.
let path = pathDir + '/H264_MP3.mp4'
await fileIO.open(path).then((fdNumber) => {
fdPath = fdPath + '' + fdNumber
console.info('open fd success fd is' + fdPath)
}, (err) => {
console.info('open fd failed err is' + err)
}).catch((err) => {
console.info('open fd failed err is' + err)
});
let file = await fs.open(path)
fdPath = fdPath + '' + file.fd
this.avPlayer.url = fdPath // The initialized state is reported again.
}
......@@ -493,14 +469,8 @@ export class AVPlayerDemo {
let pathDir = "/data/storage/el2/base/haps/entry/files" // The path used here is an example. Obtain the path based on project requirements.
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\H264_AAC.mp4 /data/app/el2/100/base/ohos.acts.multimedia.media.avplayer/haps/entry/files" command.
let path = pathDir + '/H264_AAC.mp4'
await fileIO.open(path).then((fdNumber) => {
fdPath = fdPath + '' + fdNumber
console.info('open fd success fd is' + fdPath)
}, (err) => {
console.info('open fd failed err is' + err)
}).catch((err) => {
console.info('open fd failed err is' + err)
});
let file = await fs.open(path)
fdPath = fdPath + '' + file.fd
this.avPlayer.url = fdPath
}
}
......
en/application-dev/media/avrecorder.md
浏览文件 @ 38a72dff
......@@ -67,14 +67,14 @@ export class AVRecorderDemo {
let surfaceID; // The surface ID is obtained by calling getInputSurface and transferred to the videoOutput object of the camera.
await this.getFd('01.mp4');
// Configure the parameters related to audio and video recording.
// Configure the parameters related to audio and video recording based on those supported by the hardware device.
let avProfile = {
audioBitrate : 48000,
audioChannels : 2,
audioCodec : media.CodecMimeType.AUDIO_AAC,
audioSampleRate : 48000,
fileFormat : media.ContainerFormatType.CFT_MPEG_4,
videoBitrate : 48000,
videoBitrate : 2000000,
videoCodec : media.CodecMimeType.VIDEO_MPEG4,
videoFrameWidth : 640,
videoFrameHeight : 480,
......@@ -363,10 +363,10 @@ export class VideoRecorderDemo {
let surfaceID; // The surface ID is obtained by calling getInputSurface and transferred to the videoOutput object of the camera.
await this.getFd('01.mp4');
// Configure the parameters related to video recording.
// Configure the parameters related to pure video recording based on those supported by the hardware device.
let videoProfile = {
fileFormat : media.ContainerFormatType.CFT_MPEG_4,
videoBitrate : 48000,
videoBitrate : 2000000,
videoCodec : media.CodecMimeType.VIDEO_MPEG4,
videoFrameWidth : 640,
videoFrameHeight : 480,
......
en/application-dev/media/video-playback.md
浏览文件 @ 38a72dff
......@@ -51,7 +51,7 @@ For details about how to create an XComponent, see [XComponent](../reference/ark
```js
import media from '@ohos.multimedia.media'
import fileIO from '@ohos.fileio'
import fs from '@ohos.file.fs'
export class VideoPlayerDemo {
// Report an error in the case of a function invocation failure.
failureCallback(error) {
......@@ -82,14 +82,8 @@ export class VideoPlayerDemo {
let fdPath = 'fd://'
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\H264_AAC.mp4 /data/app/el1/bundle/public/ohos.acts.multimedia.video.videoplayer/ohos.acts.multimedia.video.videoplayer/assets/entry/resources/rawfile" command.
let path = '/data/app/el1/bundle/public/ohos.acts.multimedia.video.videoplayer/ohos.acts.multimedia.video.videoplayer/assets/entry/resources/rawfile/H264_AAC.mp4';
await fileIO.open(path).then((fdNumber) => {
fdPath = fdPath + '' + fdNumber;
console.info('open fd success fd is' + fdPath);
}, (err) => {
console.info('open fd failed err is' + err);
}).catch((err) => {
console.info('open fd failed err is' + err);
});
let file = await fs.open(path);
fdPath = fdPath + '' + file.fd;
// Call createVideoPlayer to create a VideoPlayer instance.
await media.createVideoPlayer().then((video) => {
if (typeof (video) != 'undefined') {
......@@ -180,7 +174,7 @@ export class VideoPlayerDemo {
```js
import media from '@ohos.multimedia.media'
import fileIO from '@ohos.fileio'
import fs from '@ohos.file.fs'
export class VideoPlayerDemo {
// Report an error in the case of a function invocation failure.
failureCallback(error) {
......@@ -211,14 +205,8 @@ export class VideoPlayerDemo {
let fdPath = 'fd://'
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\H264_AAC.mp4 /data/app/el1/bundle/public/ohos.acts.multimedia.video.videoplayer/ohos.acts.multimedia.video.videoplayer/assets/entry/resources/rawfile" command.
let path = '/data/app/el1/bundle/public/ohos.acts.multimedia.video.videoplayer/ohos.acts.multimedia.video.videoplayer/assets/entry/resources/rawfile/H264_AAC.mp4';
await fileIO.open(path).then((fdNumber) => {
fdPath = fdPath + '' + fdNumber;
console.info('open fd success fd is' + fdPath);
}, (err) => {
console.info('open fd failed err is' + err);
}).catch((err) => {
console.info('open fd failed err is' + err);
});
let file = await fs.open(path);
fdPath = fdPath + '' + file.fd;
// Call createVideoPlayer to create a VideoPlayer instance.
await media.createVideoPlayer().then((video) => {
if (typeof (video) != 'undefined') {
......@@ -267,7 +255,7 @@ export class VideoPlayerDemo {
```js
import media from '@ohos.multimedia.media'
import fileIO from '@ohos.fileio'
import fs from '@ohos.file.fs'
export class VideoPlayerDemo {
// Report an error in the case of a function invocation failure.
failureCallback(error) {
......@@ -299,14 +287,8 @@ export class VideoPlayerDemo {
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\H264_AAC.mp4 /data/app/el1/bundle/public/ohos.acts.multimedia.video.videoplayer/ohos.acts.multimedia.video.videoplayer/assets/entry/resources/rawfile" command.
let path = '/data/app/el1/bundle/public/ohos.acts.multimedia.video.videoplayer/ohos.acts.multimedia.video.videoplayer/assets/entry/resources/rawfile/H264_AAC.mp4';
let nextPath = '/data/app/el1/bundle/public/ohos.acts.multimedia.video.videoplayer/ohos.acts.multimedia.video.videoplayer/assets/entry/resources/rawfile/MP4_AAC.mp4';
await fileIO.open(path).then((fdNumber) => {
fdPath = fdPath + '' + fdNumber;
console.info('open fd success fd is' + fdPath);
}, (err) => {
console.info('open fd failed err is' + err);
}).catch((err) => {
console.info('open fd failed err is' + err);
});
let file = await fs.open(path);
fdPath = fdPath + '' + file.fd;
// Call createVideoPlayer to create a VideoPlayer instance.
await media.createVideoPlayer().then((video) => {
if (typeof (video) != 'undefined') {
......@@ -341,14 +323,8 @@ export class VideoPlayerDemo {
// Obtain the next video FD address.
fdPath = 'fd://'
await fileIO.open(nextPath).then((fdNumber) => {
fdPath = fdPath + '' + fdNumber;
console.info('open fd success fd is' + fdPath);
}, (err) => {
console.info('open fd failed err is' + err);
}).catch((err) => {
console.info('open fd failed err is' + err);
});
let nextFile = await fs.open(nextPath);
fdPath = fdPath + '' + nextFile.fd;
// Set the second video playback source.
videoPlayer.url = fdPath;
......@@ -378,7 +354,7 @@ export class VideoPlayerDemo {
```js
import media from '@ohos.multimedia.media'
import fileIO from '@ohos.fileio'
import fs from '@ohos.file.fs'
export class VideoPlayerDemo {
// Report an error in the case of a function invocation failure.
failureCallback(error) {
......@@ -409,14 +385,8 @@ export class VideoPlayerDemo {
let fdPath = 'fd://'
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\H264_AAC.mp4 /data/app/el1/bundle/public/ohos.acts.multimedia.video.videoplayer/ohos.acts.multimedia.video.videoplayer/assets/entry/resources/rawfile" command.
let path = '/data/app/el1/bundle/public/ohos.acts.multimedia.video.videoplayer/ohos.acts.multimedia.video.videoplayer/assets/entry/resources/rawfile/H264_AAC.mp4';
await fileIO.open(path).then((fdNumber) => {
fdPath = fdPath + '' + fdNumber;
console.info('open fd success fd is' + fdPath);
}, (err) => {
console.info('open fd failed err is' + err);
}).catch((err) => {
console.info('open fd failed err is' + err);
});
let file = await fs.open(path);
fdPath = fdPath + '' + file.fd;
// Call createVideoPlayer to create a VideoPlayer instance.
await media.createVideoPlayer().then((video) => {
if (typeof (video) != 'undefined') {
......
en/application-dev/media/video-recorder.md
浏览文件 @ 38a72dff
......@@ -76,14 +76,14 @@ export class VideoRecorderDemo {
let surfaceID = null; // Used to save the surface ID returned by getInputSurface.
// Obtain the FD address of the video to be recorded.
await this.getFd('01.mp4');
// Recording-related parameter settings
// Configure the parameters related to video recording based on those supported by the hardware device.
let videoProfile = {
audioBitrate : 48000,
audioChannels : 2,
audioCodec : 'audio/mp4a-latm',
audioSampleRate : 48000,
fileFormat : 'mp4',
videoBitrate : 48000,
videoBitrate : 2000000,
videoCodec : 'video/mp4v-es',
videoFrameWidth : 640,
videoFrameHeight : 480,
......
en/application-dev/reference/apis/js-apis-media.md
浏览文件 @ 38a72dff
......@@ -1161,7 +1161,7 @@ Unsubscribes from the event that checks whether the bit rate is successfully set
| Name| Type | Mandatory| Description |
| ------ | ------ | ---- | ------------------------------------------------------------ |
| type | string | Yes | Event type, which is **'bitrateDone'** in this case|
| type | string | Yes | Event type, which is **'bitrateDone'** in this case.|
**Example**
......@@ -1694,6 +1694,8 @@ Sets audio and video recording parameters. This API uses an asynchronous callbac
This permission is required only if audio recording is involved.
To use the camera to record videos, the camera module is required. For details about how to obtain the permissions and use the APIs, see [Camera Management](js-apis-camera.md).
**System capability**: SystemCapability.Multimedia.Media.AVRecorder
**Parameters**
......@@ -1717,13 +1719,14 @@ For details about the error codes, see [Media Error Codes](../errorcodes/errorco
**Example**
```js
// Configure the parameters based on those supported by the hardware device.
let AVRecorderProfile = {
audioBitrate : 48000,
audioChannels : 2,
audioCodec : media.CodecMimeType.AUDIO_AAC,
audioSampleRate : 48000,
fileFormat : media.ContainerFormatType.CFT_MPEG_4,
videoBitrate : 48000,
videoBitrate : 2000000,
videoCodec : media.CodecMimeType.VIDEO_MPEG4,
videoFrameWidth : 640,
videoFrameHeight : 480,
......@@ -1757,6 +1760,8 @@ Sets audio and video recording parameters. This API uses a promise to return the
This permission is required only if audio recording is involved.
To use the camera to record videos, the camera module is required. For details about how to obtain the permissions and use the APIs, see [Camera Management](js-apis-camera.md).
**System capability**: SystemCapability.Multimedia.Media.AVRecorder
**Parameters**
......@@ -1785,13 +1790,14 @@ For details about the error codes, see [Media Error Codes](../errorcodes/errorco
**Example**
```js
// Configure the parameters based on those supported by the hardware device.
let AVRecorderProfile = {
audioBitrate : 48000,
audioChannels : 2,
audioCodec : media.CodecMimeType.AUDIO_AAC,
audioSampleRate : 48000,
fileFormat : media.ContainerFormatType.CFT_MPEG_4,
videoBitrate : 48000,
videoBitrate : 2000000,
videoCodec : media.CodecMimeType.VIDEO_MPEG4,
videoFrameWidth : 640,
videoFrameHeight : 480,
......@@ -2479,7 +2485,7 @@ Describes the audio and video recording parameters.
| audioSourceType | [AudioSourceType](#audiosourcetype9) | No | Type of the audio source to record. This parameter is mandatory for audio recording. |
| videoSourceType | [VideoSourceType](#videosourcetype9) | No | Type of the video source to record. This parameter is mandatory for video recording. |
| profile | [AVRecorderProfile](#avrecorderprofile9) | Yes | Recording profile. This parameter is mandatory. |
| url | string | Yes | Recording output URL: fd://xx (fd number).<br>![img](figures/en-us_image_url.png)<br> This parameter is mandatory. |
| url | string | Yes | Recording output URL: fd://xx (fd number).<br>![img](figures/en-us_image_url.png)<br>This parameter is mandatory. |
| rotation | number | No | Rotation angle of the recorded video. The value can only be 0, 90, 180, or 270. |
| location | [Location](#location) | No | Geographical location of the recorded video. |
......@@ -2601,13 +2607,14 @@ For details about the error codes, see [Media Error Codes](../errorcodes/errorco
**Example**
```js
// Configure the parameters based on those supported by the hardware device.
let videoProfile = {
audioBitrate : 48000,
audioChannels : 2,
audioCodec : 'audio/mp4a-latm',
audioSampleRate : 48000,
fileFormat : 'mp4',
videoBitrate : 48000,
videoBitrate : 2000000,
videoCodec : 'video/mp4v-es',
videoFrameWidth : 640,
videoFrameHeight : 480,
......@@ -2671,13 +2678,14 @@ For details about the error codes, see [Media Error Codes](../errorcodes/errorco
**Example**
```js
// Configure the parameters based on those supported by the hardware device.
let videoProfile = {
audioBitrate : 48000,
audioChannels : 2,
audioCodec : 'audio/mp4a-latm',
audioSampleRate : 48000,
fileFormat : 'mp4',
videoBitrate : 48000,
videoBitrate : 2000000,
videoCodec : 'video/mp4v-es',
videoFrameWidth : 640,
videoFrameHeight : 480,
......@@ -3796,7 +3804,7 @@ audioPlayer.on('error', (error) => { // Set the 'error' event callback
console.info(`audio error called, error: ${error}`);
});
// Set the FD (local playback) of the video file selected by the user.
// Set the FD (local playback) of the audio file selected by the user.
let fdPath = 'fd://';
// The stream in the path can be pushed to the device by running the "hdc file send D:\xxx\01.mp3 /data/accounts/account_0/appdata" command.
let path = '/data/accounts/account_0/appdata/ohos.xxx.xxx.xxx/01.mp3';
......
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