diff --git a/camera/src/main/ets/cameramanagers/PhotoManager.ets b/camera/src/main/ets/cameramanagers/PhotoManager.ets
index 42f0fc0f4364b0ae1b4b972f79972774c546e47d..b8a64d822efac6d86ed2385376a8b79688e56b89 100644
--- a/camera/src/main/ets/cameramanagers/PhotoManager.ets
+++ b/camera/src/main/ets/cameramanagers/PhotoManager.ets
@@ -72,18 +72,18 @@ export class PhotoManager implements OutputManager {
       try {
         const displayRatio = profile.size.width / profile.size.height;
         const profileWidth = profile.size.width;
-        const PhotoProfile = photoProfilesArray
+        const photoProfile = photoProfilesArray
           .sort((a, b) => Math.abs(a.size.width - profileWidth) - Math.abs(b.size.width - profileWidth))
           .find(pf => {
             const pfDisplayRatio = pf.size.width / pf.size.height;
             return Math.abs(pfDisplayRatio - displayRatio) <= CameraConstant.PROFILE_DIFFERENCE &&
               pf.format === camera.CameraFormat.CAMERA_FORMAT_JPEG;
           });
-        if (!PhotoProfile) {
+        if (!photoProfile) {
           Logger.error(TAG_LOG, 'Failed to get photo profile');
           return;
         }
-        cameraPhotoOutput = cameraManager?.createPhotoOutput(PhotoProfile);
+        cameraPhotoOutput = cameraManager?.createPhotoOutput(photoProfile);
       } catch (error) {
         Logger.error(TAG_LOG, `Failed to createPhotoOutput. error: ${JSON.stringify(error)}`);
       }
@@ -227,6 +227,7 @@ export class PhotoManager implements OutputManager {
   // [Start set_color_space]
   // Set color space
   setColorSpaceBeforeCommitConfig(session: camera.PhotoSession, isHdr: boolean): void {
+    // The isHdr flag indicates whether HDR mode is enabled, with true representing the use of the DISPLAY_P3 color space.
     let colorSpace: colorSpaceManager.ColorSpace =
       isHdr ? colorSpaceManager.ColorSpace.DISPLAY_P3 : colorSpaceManager.ColorSpace.SRGB;
     let colorSpaces: Array<colorSpaceManager.ColorSpace> = [];
diff --git a/camera/src/main/ets/cameramanagers/VideoManager.ets b/camera/src/main/ets/cameramanagers/VideoManager.ets
index c075098815b61ab8c9a993d2f932d04da5d9a155..cc36fb9def8790e5cbda671eaa2dc7a2e06c561f 100644
--- a/camera/src/main/ets/cameramanagers/VideoManager.ets
+++ b/camera/src/main/ets/cameramanagers/VideoManager.ets
@@ -253,9 +253,9 @@ export class VideoManager implements OutputManager {
     let options: photoAccessHelper.CreateOptions = {
       title: Date.now().toString()
     };
-    let accessHelper: photoAccessHelper.PhotoAccessHelper = photoAccessHelper.getPhotoAccessHelper(this.context);
+    let videoAccessHelper: photoAccessHelper.PhotoAccessHelper = photoAccessHelper.getPhotoAccessHelper(this.context);
     try {
-      this.videoUri = await accessHelper.createAsset(photoAccessHelper.PhotoType.VIDEO, 'mp4', options);
+      this.videoUri = await videoAccessHelper.createAsset(photoAccessHelper.PhotoType.VIDEO, 'mp4', options);
       this.file = fileIo.openSync(this.videoUri, fileIo.OpenMode.READ_WRITE | fileIo.OpenMode.CREATE);
     } catch (exception) {
       Logger.error(TAG_LOG, `createAsset failed, code is ${exception.code}, message is ${exception.message}`);
@@ -264,18 +264,19 @@ export class VideoManager implements OutputManager {
 
     // [Start av_profile]
     this.avProfile = {
-      audioBitrate: 48000,
-      audioChannels: 2,
-      audioCodec: media.CodecMimeType.AUDIO_AAC,
-      audioSampleRate: 48000,
-      fileFormat: media.ContainerFormatType.CFT_MPEG_4,
-      videoBitrate: 32000000,
+      audioBitrate: 48000, // Audio bitrate (unit: bps), which affects audio quality
+      audioChannels: 2, // Stereo two-channel recording
+      audioCodec: media.CodecMimeType.AUDIO_AAC, // The audio encoding format is AAC
+      audioSampleRate: 48000, // Audio sampling rate (unit: Hz), CD-quality sound
+      fileFormat: media.ContainerFormatType.CFT_MPEG_4, // Container Format Configuration
+      videoBitrate: 32000000, // Video bitrate (unit: bps) determines video clarity
+      // Dynamic Selection of Video Encoding Format
       videoCodec: (this.qualityLevel === QualityLevel.HIGHER && this.cameraPosition === 0) ?
-      media.CodecMimeType.VIDEO_HEVC : media.CodecMimeType.VIDEO_AVC,
-      videoFrameWidth: this.videoProfile?.size.width,
-      videoFrameHeight: this.videoProfile?.size.height,
-      videoFrameRate: this.cameraPosition === 0 ? 60 : 30,
-    }
+        media.CodecMimeType.VIDEO_HEVC : media.CodecMimeType.VIDEO_AVC,
+      videoFrameWidth: this.videoProfile?.size.width, // Obtain width from video configuration
+      videoFrameHeight: this.videoProfile?.size.height, // Obtain height from video configuration
+      videoFrameRate: this.cameraPosition === 0 ? 60 : 30, // Obtain rate from video configuration
+    };
     // [End av_profile]
 
     // [Start av_config]