@@ -18,7 +18,7 @@ This subsystem offers various media services covering audio, videos, and cameras
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@@ -18,7 +18,7 @@ This subsystem offers various media services covering audio, videos, and cameras
-**Media**: provides playback and recording APIs for applications, and invokes the Gstreamer, Histreamer, or other engines through cross-process calling or direct calling.
-**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 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://gitee.com/openharmony/docs/blob/master/en/device-dev/subsystems/subsys-boot-syspara.md) or [syspara_lite](https://gitee.com/openharmony/startup_syspara_lite).
- 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://gitee.com/openharmony/docs/blob/master/en/device-dev/subsystems/subsys-boot-init-sysparam.md) 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.
- 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.
-**Audio**: supports audio input and output, policy management, and audio focus management.
-**Camera**: provides camera operation APIs for preview, photographing, and video recording.
-**Camera**: provides camera operation APIs for preview, photographing, and video recording.
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@@ -83,7 +83,7 @@ Hardware-based decoding and encoding functions of audio and video data are devic
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@@ -83,7 +83,7 @@ Hardware-based decoding and encoding functions of audio and video data are devic
You can use the APIs in any of the provided classes based on your development requirements.
You can use the APIs in any of the provided classes based on your development requirements.
- For details about how to call media APIs to implement the video recording, preview, and playback, see [Multimedia Development Guide](https://gitee.com/openharmony/docs/blob/master/en/device-dev/subsystems/subsys-multimedia.md).
- For details about how to call media APIs to implement the video recording, preview, and playback, see [Multimedia Development Guide](https://gitee.com/openharmony/docs/tree/master/en/application-dev/media).
- For a simple player, use **Player** and **Recorder** classes to quickly implement the playback and recording features.
- For a simple player, use **Player** and **Recorder** classes to quickly implement the playback and recording features.
- The **CameraKit** class provides a group of effective methods for controlling a camera, which facilitates the camera development.
- The **CameraKit** class provides a group of effective methods for controlling a camera, which facilitates the camera development.
- You can create a **CameraKit** object and register various callbacks to respond to many events in the multimedia module. Then, create a **Camera** object to operate camera resources, for example, to start preview, recording, and stream capturing, and set related parameters.
- You can create a **CameraKit** object and register various callbacks to respond to many events in the multimedia module. Then, create a **Camera** object to operate camera resources, for example, to start preview, recording, and stream capturing, and set related parameters.
