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diff --git a/en/readme/multimedia.md b/en/readme/multimedia.md
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--- a/en/readme/multimedia.md
+++ b/en/readme/multimedia.md
@@ -8,23 +8,24 @@ This subsystem offers various media services covering audio, videos, and cameras
- Audio playback and recording
- Video playback and recording
-
- Photographing and recording \(with cameras\)
-## Architecture
-
-**Figure 1** Common architecture of the multimedia subsystem
-
-
-![](figures/en-us_image_0000001163462711.png)
+## System Architecture
-**Figure 2** Architecture of the multimedia subsystem suitable for the small system
+**Figure 1** Architecture of the multimedia subsystem
+![](figures/multimedia-architecture.png)
-![](figures/multimedia-subsystem-architecture.png)
-
-**Figure 3** Multimedia service flow for the small system
-![](figures/multimedia-service-flow-for-the-small-system.png "multimedia-service-flow-for-the-small-system")
+- **Media**: provides playback and recording APIs for applications, and invokes the Gstreamer, Histreamer, or other engines through cross-process calling or direct calling.
+ - For the mini system, the media component invokes Histreamer to support audio playback.
+ - For the small system, the media component invokes recorder_lite to support audio/video recording and invokes player_lite by default to support audio/video playback. If the system variable **debug.media_service.histreamer** is set to **1**, the component invokes Histreamer to support audio/video playback. For details, see [syspara Module](https://device.harmonyos.com/en/docs/documentation/guide/subsys-boot-syspara-0000001063362360) or [syspara_lite](https://gitee.com/openharmony/startup_syspara_lite).
+ - For the standard system, the media component invokes Gstreamer to support audio/video playback and recording.
+- **Audio**: supports audio input and output, policy management, and audio focus management.
+- **Camera**: provides camera operation APIs for preview, photographing, and video recording.
+- **Image**: supports encoding and decoding of common image formats.
+- **MediaLibrary**: supports local and distributed media data access management.
+- **Histreamer**: a lightweight media engine that supports file/network streaming media input, audio/video decoding and playback, audio/video encoding and recording, and plugin extension.
+- **Gstreamer**: an open-source GStreamer engine that supports streaming media, audio and video playback, and recording.
## Directory Structure
@@ -59,6 +60,13 @@ The structure of the repository directory is as follows:
│ ├── figures # Architecture and process figures of the playback and recording module for the standard system
│ ├── frameworks # Playback and recording framework implementation for the standard system
│ └── interfaces # Playback and recording module APIs for the standard system
+├── histreamer # Histreamer engine
+│ └── engine # Media engine
+│ ├── player # Encapsulated player
+│ ├── foundation # Basic tools
+│ ├── pipeline # Pipeline framework
+│ └── plugin # Plugin framework
+│ └── plugins # Platform software plugins
└── utils # Subsystem utility module
└── lite # Utility module for the small system
├── figures # Architecture and process figures of the utility module for the small system
@@ -94,9 +102,10 @@ Load the kernel and related drivers before installing the repository. For detail
[multimedia\_utils\_lite](https://gitee.com/openharmony/multimedia_utils_lite)
+[multimedia\_histreamer](https://gitee.com/openharmony/multimedia_histreamer)
+
[multimedia\_camera\_standard](https://gitee.com/openharmony/multimedia_camera_standard)
[multimedia\_audio\_standard](https://gitee.com/openharmony/multimedia_audio_standard)
[multimedia\_media\_standard](https://gitee.com/openharmony/multimedia_media_standard)
-