update en/application-dev/media/video-recording.md.

Signed-off-by: Nshuboxu <xushubo1@huawei.com>

en/application-dev/media/video-recording.md

@@ -62,21 +62,7 @@ Read [AVRecorder](../reference/apis/js-apis-media.md#avrecorder9) for the API re
    > - The recording output URL (URL in **avConfig** in the sample code) must be in the format of fd://xx (where xx indicates a file descriptor). You must call [ohos.file.fs](../reference/apis/js-apis-file-fs.md) to implement access to the application file. For details, see [Application File Access and Management](../file-management/app-file-access.md).
 
    ```ts
-   class AVProfile {
-     fileFormat: media.ContainerFormatType;
-     videoBitrate: number;
-     videoCodec: media.CodecMimeType;
-     videoFrameWidth: number;
-     videoFrameHeight: number;
-     videoFrameRate: number;
-   }
-   class AVConfig {
-     videoSourceType: media.VideoSourceType;
-     profile: AVProfile;
-     url: string;
-     rotation: number;
-   }
-   let avProfile: AVProfile = {
+   let avProfile: media.AVRecorderProfile = {
      fileFormat: media.ContainerFormatType.CFT_MPEG_4, // Video file encapsulation format. Only MP4 is supported.
      videoBitrate: 200000, // Video bit rate.
      videoCodec: media.CodecMimeType.VIDEO_AVC, // Video file encoding format. Both MPEG-4 and AVC are supported.
@@ -84,7 +70,7 @@ Read [AVRecorder](../reference/apis/js-apis-media.md#avrecorder9) for the API re
      videoFrameHeight: 480, // Video frame height.
      videoFrameRate: 30 // Video frame rate.
    }
-   let avConfig: AVConfig = {
+   let avConfig: media.AVRecorderConfig = {
      videoSourceType: media.VideoSourceType.VIDEO_SOURCE_TYPE_SURFACE_YUV, // Video source type. YUV and ES are supported.
      profile : avProfile,
      url: 'fd://35', // Create, read, and write a file by referring to the sample code in Application File Access and Management.
@@ -139,24 +125,10 @@ Refer to the sample code below to complete the process of starting, pausing, res
 import media from '@ohos.multimedia.media'
 import { BusinessError } from '@ohos.base';
 const TAG = 'VideoRecorderDemo:'
-class AVProfile {
-  fileFormat: media.ContainerFormatType;
-  videoBitrate: number;
-  videoCodec: media.CodecMimeType;
-  videoFrameWidth: number;
-  videoFrameHeight: number;
-  videoFrameRate: number;
-}
-class AVConfig {
-  videoSourceType: media.VideoSourceType;
-  profile: AVProfile;
-  url: string;
-  rotation: number;
-}
 export class VideoRecorderDemo {
   private avRecorder: media.AVRecorder;
   private videoOutSurfaceId: string;
-  private avProfile: AVProfile = {
+  private avProfile: media.AVRecorderProfile = {
     fileFormat: media.ContainerFormatType.CFT_MPEG_4, // Video file encapsulation format. Only MP4 is supported.
     videoBitrate: 100000, // Video bit rate.
     videoCodec: media.CodecMimeType.VIDEO_AVC, // Video file encoding format. Both MPEG-4 and AVC are supported.
@@ -164,7 +136,7 @@ export class VideoRecorderDemo {
     videoFrameHeight: 480, // Video frame height.
     videoFrameRate: 30 // Video frame rate.
   }
-  private avConfig: AVConfig = {
+  private avConfig: media.AVRecorderConfig = {
     videoSourceType: media.VideoSourceType.VIDEO_SOURCE_TYPE_SURFACE_YUV, // Video source type. YUV and ES are supported.
     profile : this.avProfile,
     url: 'fd://35', // Create, read, and write a file by referring to the sample code in Application File Access and Management.