!20648 翻译完成：19905+19949 add AVCodec native API reference

Merge pull request !20648 from wusongqing/TR19905

en/application-dev/reference/native-apis/Readme-EN.md

-# Native API
+# Native APIs
 
 - Modules
   - [Native XComponent](_o_h___native_x_component.md)
   - [HiLog](_hi_log.md)
   - [NativeWindow](_native_window.md)
+  - [OH_NativeBuffer](_o_h___native_buffer.md)
   - [Drawing](_drawing.md)
+  - [OH_NativeImage](_o_h___native_image.md)
+  - [NativeVsync](_native_vsync.md)
   - [Image](image.md)
   - [Rawfile](rawfile.md)
   - [RDB](_r_d_b.md)
   - [MindSpore](_mind_spore.md)
   - [NeuralNeworkRuntime](_neural_nework_runtime.md)
+  - [AVCapability](_a_v_capability.md)
+  - [AVMuxer](_a_v_muxer.md)
   - [AudioDecoder](_audio_decoder.md)
   - [AudioEncoder](_audio_encoder.md)
   - [CodecBase](_codec_base.md)
+  - [Core](_core.md)
   - [VideoDecoder](_video_decoder.md)
   - [VideoEncoder](_video_encoder.md)
-  - [Core](_core.md)
+  - [AVDemuxer](_a_v_demuxer.md)
+  - [AVSource](_a_v_source.md)
+  - [OHAudio](_o_h_audio.md)
   - [HuksKeyApi](_huks_key_api.md)
   - [HuksParamSetApi](_huks_param_set_api.md)
   - [HuksTypeApi](_huks_type_api.md)
@@ -35,7 +43,10 @@
   - [external_window.h](external__window_8h.md)
   - [image_pixel_map_napi.h](image__pixel__map__napi_8h.md)
   - [log.h](log_8h.md)
+  - [native_buffer.h](native__buffer_8h.md)
+  - [native_image.h](native__image_8h.md)
   - [native_interface_xcomponent.h](native__interface__xcomponent_8h.md)
+  - [native_vsync.h](native__vsync_8h.md)
   - [raw_dir.h](raw__dir_8h.md)
   - [raw_file_manager.h](raw__file__manager_8h.md)
   - [raw_file.h](raw__file_8h.md)
@@ -48,14 +59,23 @@
   - [types.h](types_8h.md)
   - [neural_network_runtime_type.h](neural__network__runtime__type_8h.md)
   - [neural_network_runtime.h](neural__network__runtime_8h.md)
+  - [avcodec_audio_channel_layout.h](avcodec__audio__channel__layout_8h.md)
+  - [native_avcapability.h](native__avcapability_8h.md)
   - [native_avcodec_audiodecoder.h](native__avcodec__audiodecoder_8h.md)
   - [native_avcodec_audioencoder.h](native__avcodec__audioencoder_8h.md)
   - [native_avcodec_base.h](native__avcodec__base_8h.md)
   - [native_avcodec_videodecoder.h](native__avcodec__videodecoder_8h.md)
   - [native_avcodec_videoencoder.h](native__avcodec__videoencoder_8h.md)
+  - [native_avdemuxer.h](native__avdemuxer_8h.md)
   - [native_averrors.h](native__averrors_8h.md)
   - [native_avformat.h](native__avformat_8h.md)
   - [native_avmemory.h](native__avmemory_8h.md)
+  - [native_avmuxer.h](native__avmuxer_8h.md)
+  - [native_avsource.h](native__avsource_8h.md)
+  - [native_audiocapturer.h](native__audiocapturer_8h.md)
+  - [native_audiorenderer.h](native__audiorenderer_8h.md)
+  - [native_audiostream_base.h](native__audiostream__base_8h.md)
+  - [native_audiostreambuilder.h](native__audiostreambuilder_8h.md)
   - [native_huks_api.h](native__huks__api_8h.md)
   - [native_huks_param.h](native__huks__param_8h.md)
   - [native_huks_type.h](native__huks__type_8h.md)
@@ -69,6 +89,7 @@
   - [purgeable_memory.h](purgeable__memory_8h.md)
 - Structs
   - [OH_Drawing_BitmapFormat](_o_h___drawing___bitmap_format.md)
+  - [OH_NativeBuffer_Config](_o_h___native_buffer___config.md)
   - [OH_NativeXComponent_Callback](_o_h___native_x_component___callback.md)
   - [OH_NativeXComponent_MouseEvent](_o_h___native_x_component___mouse_event.md)
   - [OH_NativeXComponent_MouseEvent_Callback](_o_h___native_x_component___mouse_event___callback.md)
@@ -90,6 +111,9 @@
   - [OH_NN_UInt32Array](_o_h___n_n___u_int32_array.md)
   - [OH_AVCodecAsyncCallback](_o_h___a_v_codec_async_callback.md)
   - [OH_AVCodecBufferAttr](_o_h___a_v_codec_buffer_attr.md)
+  - [OH_AVRange](_o_h___a_v_range.md)
+  - [OH_AudioCapturer_Callbacks_Struct](_o_h___audio_capturer___callbacks___struct.md)
+  - [OH_AudioRenderer_Callbacks_Struct](_o_h___audio_renderer___callbacks___struct.md)
   - [OH_Huks_Blob](_o_h___huks___blob.md)
   - [OH_Huks_CertChain](_o_h___huks___cert_chain.md)
   - [OH_Huks_KeyInfo](_o_h___huks___key_info.md)

en/application-dev/reference/native-apis/_a_v_demuxer.md

+# AVDemuxer
+
+
+## Overview
+
+The AVDemuxer module provides functions for audio and video decapsulation.
+
+\@syscap SystemCapability.Multimedia.Media.Spliter
+
+**Since**
+
+10
+
+
+## Summary
+
+
+### File
+
+| Name| Description|
+| -------- | -------- |
+| [native_avdemuxer.h](native__avdemuxer_8h.md) | Declares the native APIs used for audio and video decapsulation.<br>File to include: \<multimedia/native_avdemuxer.h> |
+
+
+### Functions
+
+| Name| Description|
+| -------- | -------- |
+| \*[OH_AVDemuxer_CreateWithSource](#oh_avdemuxer_createwithsource) (OH_AVSource \*source) | Creates an **OH_AVDemuxer** instance based on an **OH_AVSource** instance.|
+| [OH_AVDemuxer_Destroy](#oh_avdemuxer_destroy) (OH_AVDemuxer \*demuxer) | Destroys an **OH_AVDemuxer** instance and clears internal resources.|
+| [OH_AVDemuxer_SelectTrackByID](#oh_avdemuxer_selecttrackbyid) (OH_AVDemuxer \*demuxer, uint32_t trackIndex) | Selects a track, from which the demuxer reads data.|
+| [OH_AVDemuxer_UnselectTrackByID](#oh_avdemuxer_unselecttrackbyid) (OH_AVDemuxer \*demuxer, uint32_t trackIndex) | Deselects a track. The demuxer no longer reads data from a track after it is deselected.|
+| [OH_AVDemuxer_ReadSample](#oh_avdemuxer_readsample) (OH_AVDemuxer \*demuxer, uint32_t trackIndex, OH_AVMemory \*sample, OH_AVCodecBufferAttr \*info) | Obtains the compressed frame and related information at the current position from the selected track.|
+| [OH_AVDemuxer_SeekToTime](#oh_avdemuxer_seektotime) (OH_AVDemuxer \*demuxer, int64_t millisecond, OH_AVSeekMode mode) | Seeks to the specified time for all the selected tracks based on a seek mode.|
+
+
+## Function Description
+
+
+### OH_AVDemuxer_CreateWithSource()
+
+
+```
+OH_AVDemuxer* OH_AVDemuxer_CreateWithSource (OH_AVSource * source)
+```
+
+**Description**
+
+Creates an **OH_AVDemuxer** instance based on an **OH_AVSource** instance. You can release the instance by calling **OH_AVDemuxer_Destroy**.
+
+\@syscap SystemCapability.Multimedia.Media.Spliter
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| source | Pointer to an **OH_AVSource** instance.|
+
+**Returns**
+
+Returns the pointer to an **OH_AVDemuxer** instance.
+
+**Since**
+
+10
+
+
+### OH_AVDemuxer_Destroy()
+
+
+```
+OH_AVErrCode OH_AVDemuxer_Destroy (OH_AVDemuxer * demuxer)
+```
+
+**Description**
+
+Destroys an **OH_AVDemuxer** instance and clears internal resources. An instance can be destroyed only once.
+
+The destroyed instance cannot be used until it is re-created. You are advised to set the pointer to **NULL** after the instance is destroyed.
+
+\@syscap SystemCapability.Multimedia.Media.Spliter
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| demuxer | Pointer to an **OH_AVDemuxer** instance.|
+
+**Returns**
+
+Returns **AV_ERR_OK** if the operation is successful; returns an error code defined in [OH_AVErrCode](_core.md#oh_averrcode) otherwise.
+
+**Since**
+
+10
+
+
+### OH_AVDemuxer_ReadSample()
+
+
+```
+OH_AVErrCode OH_AVDemuxer_ReadSample (OH_AVDemuxer * demuxer, uint32_t trackIndex, OH_AVMemory * sample, OH_AVCodecBufferAttr * info )
+```
+
+**Description**
+
+Obtains the compressed frame and related information at the current position from the selected track.
+
+You must select a track before reading data. After this API is called, the demuxer automatically proceeds to the next frame.
+
+\@syscap SystemCapability.Multimedia.Media.Spliter
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| demuxer | Pointer to an **OH_AVDemuxer** instance.|
+| trackIndex | Index of the track from which the compressed frame is to be read.|
+| sample | Pointer to the **OH_AVMemory** instance for storing the compressed frame data.|
+| info | Pointer to the **OH_AVCodecBufferAttr** instance for storing the compressed frame information.|
+
+**Returns**
+
+Returns **AV_ERR_OK** if the operation is successful; returns an error code defined in [OH_AVErrCode](_core.md#oh_averrcode) otherwise.
+
+**Since**
+
+10
+
+
+### OH_AVDemuxer_SeekToTime()
+
+
+```
+OH_AVErrCode OH_AVDemuxer_SeekToTime (OH_AVDemuxer * demuxer, int64_t millisecond, OH_AVSeekMode mode )
+```
+
+**Description**
+
+Seeks to the specified time for all the selected tracks based on a seek mode.
+
+\@syscap SystemCapability.Multimedia.Media.Spliter
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| demuxer | Pointer to an **OH_AVDemuxer** instance.|
+| millisecond | Time to seek to, in milliseconds. The timestamp is relative to the start position of the file.|
+| mode | Seek mode. For details, see **OH_AVSeekMode**.|
+
+**Returns**
+
+Returns **AV_ERR_OK** if the operation is successful; returns an error code defined in [OH_AVErrCode](_core.md#oh_averrcode) otherwise.
+
+**Since**
+
+10
+
+
+### OH_AVDemuxer_SelectTrackByID()
+
+
+```
+OH_AVErrCode OH_AVDemuxer_SelectTrackByID (OH_AVDemuxer * demuxer, uint32_t trackIndex )
+```
+
+**Description**
+
+Selects a track, from which the demuxer reads data.
+
+You can select multiple tracks by calling this API multiple times, with a different track index passed in each time.
+
+When **OH_AVDemuxer_ReadSample** is called, only the data in the selected track is read. If the same track is selected multiple times, **AV_ERR_OK** is returned and the API call takes effect only once.
+
+\@syscap SystemCapability.Multimedia.Media.Spliter
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| demuxer | Pointer to an **OH_AVDemuxer** instance.|
+| trackIndex | Index of the track.|
+
+**Returns**
+
+Returns **AV_ERR_OK** if the operation is successful; returns an error code defined in [OH_AVErrCode](_core.md#oh_averrcode) otherwise.
+
+**Since**
+
+10
+
+
+### OH_AVDemuxer_UnselectTrackByID()
+
+
+```
+OH_AVErrCode OH_AVDemuxer_UnselectTrackByID (OH_AVDemuxer * demuxer, uint32_t trackIndex )
+```
+
+**Description**
+
+Deselects a track. The demuxer no longer reads data from a track after it is deselected.
+
+You can deselect multiple tracks by calling this API multiple times, with a different track index passed in each time.
+
+If the same track is deselected multiple times, **AV_ERR_OK** is returned and the API call takes effect only once.
+
+\@syscap SystemCapability.Multimedia.Media.Spliter
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| demuxer | Pointer to an **OH_AVDemuxer** instance.|
+| trackIndex | Index of the track.|
+
+**Returns**
+
+Returns **AV_ERR_OK** if the operation is successful; returns an error code defined in [OH_AVErrCode](_core.md#oh_averrcode) otherwise.
+
+**Since**
+
+10

en/application-dev/reference/native-apis/_a_v_muxer.md

+# AVMuxer
+
+
+## Overview
+
+The **AVMuxer** module provides functions for audio and video encapsulation.
+
+\@syscap SystemCapability.Multimedia.Media.Muxer
+
+**Since**
+
+10
+
+
+## Summary
+
+
+### Files
+
+| Name| Description| 
+| -------- | -------- |
+| [native_avmuxer.h](native__avmuxer_8h.md) | Declares native APIs used for audio and video encapsulation.<br>File to include: &lt;multimedia/native_avmuxer.h&gt;| 
+
+
+### Functions
+
+| Name| Description| 
+| -------- | -------- |
+| \*[OH_AVMuxer_Create](#oh_avmuxer_create) (int32_t fd, OH_AVOutputFormat format) | Creates an **OH_AVMuxer** instance by using the file descriptor and encapsulation format.| 
+| [OH_AVMuxer_SetRotation](#oh_avmuxer_setrotation) (OH_AVMuxer \*muxer, int32_t rotation) | Sets the rotation angle (clockwise) of an output video.| 
+| [OH_AVMuxer_AddTrack](#oh_avmuxer_addtrack) (OH_AVMuxer \*muxer, int32_t \*trackIndex, OH_AVFormat \*trackFormat) | Adds a media track to the muxer.| 
+| [OH_AVMuxer_Start](#oh_avmuxer_start) (OH_AVMuxer \*muxer) | Starts encapsulation.| 
+| [OH_AVMuxer_WriteSample](#oh_avmuxer_writesample) (OH_AVMuxer \*muxer, uint32_t trackIndex, OH_AVMemory \*sample, OH_AVCodecBufferAttr info) | Writes data to the muxer.| 
+| [OH_AVMuxer_Stop](#oh_avmuxer_stop) (OH_AVMuxer \*muxer) | Stops encapsulation.| 
+| [OH_AVMuxer_Destroy](#oh_avmuxer_destroy) (OH_AVMuxer \*muxer) | Clears internal resources and destroys an **OH_AVMuxer** instance.| 
+
+
+## Function Description
+
+
+### OH_AVMuxer_AddTrack()
+
+  
+```
+OH_AVErrCode OH_AVMuxer_AddTrack (OH_AVMuxer * muxer, int32_t * trackIndex, OH_AVFormat * trackFormat )
+```
+
+**Description**
+
+Adds a media track to the muxer.
+
+This function must be called before **OH_AVMuxer_Start**.
+
+\@syscap SystemCapability.Multimedia.Media.Muxer
+
+**Parameters**
+
+  | Name| Description| 
+| -------- | -------- |
+| muxer | Pointer to an **OH_AVMuxer** instance.| 
+| trackIndex | Pointer to the index of the media track. The index will be used in the **OH_AVMuxer_WriteSample** function. If the media track is added, the index value is greater than or equal to 0; otherwise, the value is less than 0.| 
+| trackFormat | Pointer to an **OH_AVFormat** instance.| 
+
+**Returns**
+
+Returns **AV_ERR_OK** if the operation is successful; returns an error code defined in [OH_AVErrCode](_core.md#oh_averrcode-1) otherwise.
+
+**Since**
+
+10
+
+
+### OH_AVMuxer_Create()
+
+  
+```
+OH_AVMuxer* OH_AVMuxer_Create (int32_t fd, OH_AVOutputFormat format )
+```
+
+**Description**
+
+Creates an **OH_AVMuxer** instance by using the file descriptor and encapsulation format.
+
+\@syscap SystemCapability.Multimedia.Media.Muxer
+
+**Parameters**
+
+  | Name| Description| 
+| -------- | -------- |
+| fd | File descriptor (FD). You must open the file in read/write mode (O_RDWR) and close the file after using it.| 
+| format | Format of the encapsulated output file. For details, see [OH_AVOutputFormat](_codec_base.md#oh_avoutputformat).| 
+
+**Returns**
+
+Returns the pointer to the **OH_AVMuxer** instance created. You must call **OH_AVMuxer_Destroy** to destroy the instance when it is no longer needed.
+
+**Since**
+
+10
+
+
+### OH_AVMuxer_Destroy()
+
+  
+```
+OH_AVErrCode OH_AVMuxer_Destroy (OH_AVMuxer * muxer)
+```
+
+**Description**
+
+Clears internal resources and destroys an **OH_AVMuxer** instance.
+
+\@syscap SystemCapability.Multimedia.Media.Muxer
+
+**Parameters**
+
+  | Name| Description| 
+| -------- | -------- |
+| muxer | Pointer to an **OH_AVMuxer** instance.| 
+
+**Returns**
+
+Returns **AV_ERR_OK** if the operation is successful; returns an error code defined in [OH_AVErrCode](_core.md#oh_averrcode-1) otherwise. You must set the muxer to null.
+
+**Since**
+
+10
+
+
+### OH_AVMuxer_SetRotation()
+
+  
+```
+OH_AVErrCode OH_AVMuxer_SetRotation (OH_AVMuxer * muxer, int32_t rotation )
+```
+
+**Description**
+
+Sets the rotation angle (clockwise) of an output video.
+
+This function must be called before **OH_AVMuxer_Start**.
+
+\@syscap SystemCapability.Multimedia.Media.Muxer
+
+**Parameters**
+
+  | Name| Description| 
+| -------- | -------- |
+| muxer | Pointer to an **OH_AVMuxer** instance.| 
+| rotation | Angle to set. The value must be 0, 90, 180, or 270.| 
+
+**Returns**
+
+Returns **AV_ERR_OK** if the operation is successful; returns an error code defined in [OH_AVErrCode](_core.md#oh_averrcode-1) otherwise.
+
+**Since**
+
+10
+
+
+### OH_AVMuxer_Start()
+
+  
+```
+OH_AVErrCode OH_AVMuxer_Start (OH_AVMuxer * muxer)
+```
+
+**Description**
+
+Starts encapsulation.
+
+This function must be called after **OH_AVMuxer_AddTrack** and before **OH_AVMuxer_WriteSample**.
+
+\@syscap SystemCapability.Multimedia.Media.Muxer
+
+**Parameters**
+
+  | Name| Description| 
+| -------- | -------- |
+| muxer | Pointer to an **OH_AVMuxer** instance.| 
+
+**Returns**
+
+Returns **AV_ERR_OK** if the operation is successful; returns an error code defined in [OH_AVErrCode](_core.md#oh_averrcode-1) otherwise.
+
+**Since**
+
+10
+
+
+### OH_AVMuxer_Stop()
+
+  
+```
+OH_AVErrCode OH_AVMuxer_Stop (OH_AVMuxer * muxer)
+```
+
+**Description**
+
+Stops encapsulation.
+
+Once encapsulation is stopped, it cannot be restarted.
+
+\@syscap SystemCapability.Multimedia.Media.Muxer
+
+**Parameters**
+
+  | Name| Description| 
+| -------- | -------- |
+| muxer | Pointer to an **OH_AVMuxer** instance.| 
+
+**Returns**
+
+Returns **AV_ERR_OK** if the operation is successful; returns an error code defined in [OH_AVErrCode](_core.md#oh_averrcode-1) otherwise.
+
+**Since**
+
+10
+
+
+### OH_AVMuxer_WriteSample()
+
+  
+```
+OH_AVErrCode OH_AVMuxer_WriteSample (OH_AVMuxer * muxer, uint32_t trackIndex, OH_AVMemory * sample, OH_AVCodecBufferAttr info )
+```
+
+**Description**
+
+Writes data to the muxer.
+
+This function must be called after **OH_AVMuxer_Start** and before **OH_AVMuxer_Stop**. You must ensure that the data is written to the correct media track in ascending order by time.
+
+\@syscap SystemCapability.Multimedia.Media.Muxer
+
+**Parameters**
+
+  | Name| Description| 
+| -------- | -------- |
+| muxer | Pointer to an **OH_AVMuxer** instance.| 
+| trackIndex | Index of the media track corresponding to the data.| 
+| sample | Pointer to the buffer that stores the data written (data obtained after encoding or decapsulation).| 
+| info | Information about the data written. For details, see [OH_AVCodecBufferAttr](_o_h___a_v_codec_buffer_attr.md).| 
+
+**Returns**
+
+Returns **AV_ERR_OK** if the operation is successful; returns an error code defined in [OH_AVErrCode](_core.md#oh_averrcode-1) otherwise.
+
+**Since**
+
+10

en/application-dev/reference/native-apis/_a_v_source.md

+# AVSource
+
+
+## Overview
+
+The AVSource module provides functions for constructing audio and video resource objects.
+
+\@syscap SystemCapability.Multimedia.Media.Spliter
+
+**Since**
+
+10
+
+
+## Summary
+
+
+### File
+
+| Name| Description|
+| -------- | -------- |
+| [native_avsource.h](native__avsource_8h.md) | Declares the native APIs used to construct audio and video resource objects.<br>File to include: \<multimedia/native_avsource.h>|
+
+
+### Functions
+
+| Name| Description|
+| -------- | -------- |
+| \*[OH_AVSource_CreateWithURI](#oh_avsource_createwithuri) (char \*uri) | Creates an **OH_AVSource** instance based on a URI.|
+| \*[OH_AVSource_CreateWithFD](#oh_avsource_createwithfd) (int32_t fd, int64_t offset, int64_t size) | Creates an **OH_AVSource** instance based on a file descriptor (FD).|
+| [OH_AVSource_Destroy](#oh_avsource_destroy) (OH_AVSource \*source) | Destroys an **OH_AVSource** instance and clears internal resources. An instance can be destroyed only once.|
+| \*[OH_AVSource_GetSourceFormat](#oh_avsource_getsourceformat) (OH_AVSource \*source) | Obtains the basic information about a media resource.|
+| \*[OH_AVSource_GetTrackFormat](#oh_avsource_gettrackformat) (OH_AVSource \*source, uint32_t trackIndex) | Obtains the basic information about a track.|
+
+
+## Function Description
+
+
+### OH_AVSource_CreateWithFD()
+
+
+```
+OH_AVSource* OH_AVSource_CreateWithFD (int32_t fd, int64_t offset, int64_t size )
+```
+
+**Description**
+
+Creates an **OH_AVSource** instance based on an FD.
+
+You can release the instance by calling **OH_AVSource_Destroy**.
+
+If **offset** is not the start position of the file or **size** is not the file size, undefined errors such as creation failure and decapsulation failure may occur due to incomplete data obtained.
+
+\@syscap SystemCapability.Multimedia.Media.Spliter
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| fd | FD of a media resource file.|
+| offset | Position from which data is to read.|
+| size | File size, in bytes.|
+
+**Returns**
+
+Returns the pointer to an **OH_AVSource** instance.
+
+**Since**
+
+10
+
+
+### OH_AVSource_CreateWithURI()
+
+
+```
+OH_AVSource* OH_AVSource_CreateWithURI (char * uri)
+```
+
+**Description**
+
+Create an **OH_AVSource** instance object based on a URI. You can release the instance by calling **OH_AVSource_Destroy**.
+
+\@syscap SystemCapability.Multimedia.Media.Spliter
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| uri | URI of the media resource.|
+
+**Returns**
+
+Returns the pointer to an **OH_AVSource** instance.
+
+**Since**
+
+10
+
+
+### OH_AVSource_Destroy()
+
+
+```
+OH_AVErrCode OH_AVSource_Destroy (OH_AVSource * source)
+```
+
+**Description**
+
+Destroys an **OH_AVSource** instance and clears internal resources.
+
+An instance can be destroyed only once.
+
+The destroyed instance cannot be used until it is re-created. You are advised to set the pointer to **NULL** after the instance is destroyed.
+
+\@syscap SystemCapability.Multimedia.Media.Spliter
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| source | Pointer to an **OH_AVSource** instance.|
+
+**Returns**
+
+Returns **AV_ERR_OK** if the operation is successful; returns an error code defined in [OH_AVErrCode](_core.md#oh_averrcode) otherwise.
+
+**Since**
+
+10
+
+
+### OH_AVSource_GetSourceFormat()
+
+
+```
+OH_AVFormat* OH_AVSource_GetSourceFormat (OH_AVSource * source)
+```
+
+**Description**
+
+Obtains the basic information about a media resource.
+
+\@syscap SystemCapability.Multimedia.Media.Spliter
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| source | Pointer to an **OH_AVSource** instance.|
+
+**Returns**
+
+Returns the basic information obtained.
+
+**Since**
+
+10
+
+
+### OH_AVSource_GetTrackFormat()
+
+
+```
+OH_AVFormat* OH_AVSource_GetTrackFormat (OH_AVSource * source, uint32_t trackIndex )
+```
+
+**Description**
+
+Obtains the basic information about a track.
+
+\@syscap SystemCapability.Multimedia.Media.Spliter
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| source | Pointer to an **OH_AVSource** instance.|
+| trackIndex | Index of the track whose information is to be obtained.|
+
+**Returns**
+
+Returns the basic information obtained.
+
+**Since**
+
+10

en/application-dev/reference/native-apis/_native_vsync.md

+# NativeVsync
+
+
+## Overview
+
+The **NativeVsync** module provides the capabilities of native virtual synchronization (VSync).
+
+\@syscap SystemCapability.Graphic.Graphic2D.NativeVsync
+
+**Since**
+
+9
+
+
+## Summary
+
+
+### Files
+
+| Name| Description|
+| -------- | -------- |
+| [native_vsync.h](native__vsync_8h.md) | Declares the functions for obtaining and using native VSync.<br>File to include: &lt;native_vsync/native_vsync.h&gt;|
+
+
+### Types
+
+| Name| Description|
+| -------- | -------- |
+| [OH_NativeVSync](#oh_nativevsync) | Provides the declaration of an **OH_NativeVSync** struct. |
+| (\*[OH_NativeVSync_FrameCallback](#oh_nativevsync_framecallback)) (long long timestamp, void \*data) | Defines the pointer to a VSync callback function.|
+
+
+### Functions
+
+| Name| Description|
+| -------- | -------- |
+| [OH_NativeVSync_Create](#oh_nativevsync_create) (const char \*name, unsigned int length) | Creates an **OH_NativeVSync** instance. A new **OH_NativeVSync** instance is created each time this function is called.|
+| [OH_NativeVSync_Destroy](#oh_nativevsync_destroy) ([OH_NativeVSync](#oh_nativevsync) \*nativeVsync) | Destroys an **OH_NativeVSync** instance.|
+| [OH_NativeVSync_RequestFrame](#oh_nativevsync_requestframe) ([OH_NativeVSync](#oh_nativevsync) \*nativeVsync, [OH_NativeVSync_FrameCallback](#oh_nativevsync_framecallback) callback, void \*data) | Requests the next VSync signal. When the signal arrives, a callback function is invoked.|
+
+
+## Type Description
+
+
+### OH_NativeVSync
+
+
+```
+typedef struct OH_NativeVSync OH_NativeVSync
+```
+
+**Description**
+
+Provides the declaration of a **OH_NativeVSync** struct.
+
+
+### OH_NativeVSync_FrameCallback
+
+
+```
+typedef void(* OH_NativeVSync_FrameCallback) (long long timestamp, void *data)
+```
+
+**Description**
+
+Defines the pointer to a VSync callback function.
+
+\@syscap SystemCapability.Graphic.Graphic2D.NativeVsync
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| timestamp | VSync timestamp.|
+| data | User-defined data.|
+
+
+## Function Description
+
+
+### OH_NativeVSync_Create()
+
+
+```
+OH_NativeVSync* OH_NativeVSync_Create (const char * name, unsigned int length )
+```
+
+**Description**
+
+Creates an **OH_NativeVSync** instance. A new **OH_NativeVSync** instance is created each time this function is called.
+
+\@syscap SystemCapability.Graphic.Graphic2D.NativeVsync
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| name | Pointer to the name that associates with an **OH_NativeVSync** instance.|
+| length | Length of the name.|
+
+**Returns**
+
+Returns the pointer to an **OH_NativeVSync** instance.
+
+
+### OH_NativeVSync_Destroy()
+
+
+```
+void OH_NativeVSync_Destroy (OH_NativeVSync * nativeVsync)
+```
+
+**Description**
+
+Destroys an **OH_NativeVSync** instance.
+
+\@syscap SystemCapability.Graphic.Graphic2D.NativeVsync
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| nativeVsync | Pointer to an **OH_NativeVSync** instance.|
+
+
+### OH_NativeVSync_RequestFrame()
+
+
+```
+int OH_NativeVSync_RequestFrame (OH_NativeVSync * nativeVsync, OH_NativeVSync_FrameCallback callback, void * data )
+```
+
+**Description**
+
+Requests the next VSync signal. When the signal arrives, a callback function is invoked.
+
+\@syscap SystemCapability.Graphic.Graphic2D.NativeVsync
+
+**Parameters**
+
+| Name| Description|
+| -------- | -------- |
+| nativeVsync | Pointer to an **OH_NativeVSync** instance.|
+| callback | Function pointer of the **OH_NativeVSync_FrameCallback** type. This function pointer will be called when the next VSync signal arrives.|
+| data | Pointer to the user-defined data struct. The type is void\*.|
+
+**Returns**
+
+Returns **0** if the operation is successful.

en/application-dev/reference/native-apis/_o_h___a_v_codec_async_callback.md

@@ -3,14 +3,15 @@
 
 ## Overview
 
-Defines a collection of asynchronous callback functions for an **OH_AVCodec** instance. You must register this struct instance for an **OH_AVCodec** instance and process the information reported through these callbacks to ensure the normal running of the instance.
+The **OH_AVCodecAsyncCallback** struct defines all the asynchronous callback function pointers of an **OH_AVCodec** instance. To ensure the normal running of **OH_AVCodec**, you must register the instance of this struct with the **OH_AVCodec** instance and process the information reported by the callback function.
 
 \@syscap SystemCapability.Multimedia.Media.CodecBase
 
-**Since:**
+**Since**
+
 9
 
-**Related Modules:**
+**Related Modules**
 
 [CodecBase](_codec_base.md)
 
@@ -20,9 +21,76 @@ Defines a collection of asynchronous callback functions for an **OH_AVCodec** in
 
 ### Member Variables
 
-| Name | Description | 
+| Name| Description| 
 | -------- | -------- |
-| **onError** | Indicates the callback used to report errors occurred during the running of the instance. For details, see [OH_AVCodecOnError](_codec_base.md#oh_avcodeconerror) | 
-| **onStreamChanged** | Indicates the callback used to report stream information. For details, see [OH_AVCodecOnStreamChanged](_codec_base.md#oh_avcodeconstreamchanged) | 
-| **onNeedInputData** | Indicates the callback used to report input data needed. For details, see [OH_AVCodecOnNeedInputData](_codec_base.md#oh_avcodeconneedinputdata) | 
-| **onNeedOutputData** | Indicates the callback used to report output data needed. For details, see [OH_AVCodecOnNewOutputData](_codec_base.md#oh_avcodeconnewoutputdata) | 
+| [onError](#onerror) | Defines the callback used to report a codec operation error. For details, see [OH_AVCodecOnError](_codec_base.md#oh_avcodeconerror).| 
+| [onStreamChanged](#onstreamchanged) | Defines the callback used to report a codec stream change. For details, see [OH_AVCodecOnStreamChanged](_codec_base.md#oh_avcodeconstreamchanged).| 
+| [onNeedInputData](#onneedinputdata) | Defines the callback used to report input data required. For details, see [OH_AVCodecOnNeedInputData](_codec_base.md#oh_avcodeconneedinputdata).| 
+| [onNeedOutputData](#onneedoutputdata) | Defines the callback used to report output data generated. For details, see [OH_AVCodecOnNewOutputData](_codec_base.md#oh_avcodeconnewoutputdata).| 
+
+
+## Member Variable Description
+
+
+### onError
+
+  
+```
+OH_AVCodecOnError onError
+```
+
+**Description**
+
+Defines the callback used to report a codec operation error. For details, see [OH_AVCodecOnError](_codec_base.md#oh_avcodeconerror).
+
+**Since**
+
+9
+
+
+### onNeedInputData
+
+  
+```
+OH_AVCodecOnNeedInputData onNeedInputData
+```
+
+**Description**
+
+Defines the callback used to report input data required. For details, see [OH_AVCodecOnNeedInputData](_codec_base.md#oh_avcodeconneedinputdata).
+
+**Since**
+
+9
+
+
+### onNeedOutputData
+
+  
+```
+OH_AVCodecOnNewOutputData onNeedOutputData
+```
+
+**Description**
+
+Defines the callback used to report output data generated. For details, see [OH_AVCodecOnNewOutputData](_codec_base.md#oh_avcodeconnewoutputdata).
+
+**Since**
+
+9
+
+
+### onStreamChanged
+
+  
+```
+OH_AVCodecOnStreamChanged onStreamChanged
+```
+
+**Description**
+
+Defines the callback used to report a codec stream change. For details, see [OH_AVCodecOnStreamChanged](_codec_base.md#oh_avcodeconstreamchanged).
+
+**Since**
+
+9

en/application-dev/reference/native-apis/_o_h___a_v_codec_buffer_attr.md

@@ -3,14 +3,15 @@
 
 ## Overview
 
-Defines the buffer attributes of an **OH_AVCodec** instance.
+The **OH_AVCodecBufferAttr** struct defines the description information about the buffer of an **OH_AVCodec** instance.
 
 \@syscap SystemCapability.Multimedia.Media.CodecBase
 
-**Since:**
+**Since**
+
 9
 
-**Related Modules:**
+**Related Modules**
 
 [CodecBase](_codec_base.md)
 
@@ -20,9 +21,76 @@ Defines the buffer attributes of an **OH_AVCodec** instance.
 
 ### Member Variables
 
-| Name | Description | 
+| Name| Description| 
 | -------- | -------- |
-| [pts](_codec_base.md#pts) | Presentation timestamp of the buffer, in microseconds.| 
-| [size](_codec_base.md#size) | Size of the data contained in the buffer, in bytes. | 
-| [offset](_codec_base.md#offset) | Start offset of valid data in the buffer. | 
-| [flags](_codec_base.md#flags) | Buffer flag, which is a combination of multiple **OH_AVCodecBufferFlags**.  | 
+| [pts](#pts) | Defines the display timestamp of the buffer, in microseconds.| 
+| [size](#size) | Defines the size of data contained in the buffer, in bytes.| 
+| [offset](#offset) | Defines the offset of valid data in the buffer.| 
+| [flags](#flags) | Defines the flags of the buffer. It is a combination of multiple [OH_AVCodecBufferFlags](_codec_base.md#oh_avcodecbufferflags).| 
+
+
+## Member Variable Description
+
+
+### pts
+
+  
+```
+int64_t pts
+```
+
+**Description**
+
+Defines the display timestamp of the buffer, in microseconds.
+
+**Since**
+
+9
+
+
+### size
+
+  
+```
+int32_t size
+```
+
+**Description**
+
+Defines the size of data contained in the buffer, in bytes.
+
+**Since**
+
+9
+
+
+### offset
+
+  
+```
+int32_t offset
+```
+
+**Description**
+
+Defines the offset of valid data in the buffer.
+
+**Since**
+
+9
+
+
+### flags
+
+  
+```
+uint32_t flags
+```
+
+**Description**
+
+Defines the flags of the buffer. It is a combination of multiple [OH_AVCodecBufferFlags](_codec_base.md#oh_avcodecbufferflags).
+
+**Since**
+
+9

en/application-dev/reference/native-apis/_o_h___a_v_range.md

+# OH_AVRange
+
+
+## Overview
+
+The **OH_AVRange** struct defines the value range, which contains the minimum value and maximum value.
+
+\@syscap SystemCapability.Multimedia.Media.CodecBase
+
+**Since**
+
+10
+
+**Related Modules**
+
+[AVCapability](_a_v_capability.md)
+
+
+## Summary
+
+
+### Member Variables
+
+| Name| Description| 
+| -------- | -------- |
+| [minVal](#minval) | Defines the minimum value.| 
+| [maxVal](#maxval) | Defines the maximum value.| 
+
+
+## Member Variable Description
+
+
+### minVal
+
+  
+```
+int32_t minVal
+```
+
+**Description**
+
+Defines the minimum value.
+
+**Since**
+
+10
+
+
+### maxVal
+
+  
+```
+int32_t maxVal
+```
+
+**Description**
+
+Defines the maximum value.
+
+**Since**
+
+10

en/application-dev/reference/native-apis/_o_h___audio_capturer___callbacks___struct.md

+# OH_AudioCapturer_Callbacks_Struct
+
+
+## Overview
+
+The **OH_AudioCapturer_Callbacks_Struct** struct defines a pointer to the callback functions related to an audio capturer.
+
+\@syscap SystemCapability.Multimedia.Audio.Core
+
+**Since**
+
+10
+
+**Related Modules**
+
+[OHAudio](_o_h_audio.md)
+
+
+## Summary
+
+
+### Member Variables
+
+| Name| Description| 
+| -------- | -------- |
+| (\*[OH_AudioCapturer_OnReadData](_o_h_audio.md#oh_audiocapturer_onreaddata) )([OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) \*capturer, void \*userData, void \*buffer, int32_t lenth) | Defines a function pointer to the callback function used to read audio data.| 

en/application-dev/reference/native-apis/_o_h___audio_renderer___callbacks___struct.md

+# OH_AudioRenderer_Callbacks_Struct
+
+
+## Overview
+
+The **OH_AudioRenderer_Callbacks_Struct** struct defines a pointer to the callback functions related to an audio renderer.
+
+\@syscap SystemCapability.Multimedia.Audio.Core
+
+**Since**
+
+10
+
+**Related Modules**
+
+[OHAudio](_o_h_audio.md)
+
+
+## Summary
+
+
+### Member Variables
+
+| Name| Description |
+| -------- | -------- |
+| (\*[OH_AudioRenderer_OnWriteData](_o_h_audio.md#oh_audiorenderer_onwritedata) )([OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) \*renderer, void \*userData, void \*buffer, int32_t lenth) | Defines a function pointer to the callback function used to write audio data.|

en/application-dev/reference/native-apis/_o_h___native_buffer___config.md

+# OH_NativeBuffer_Config
+
+
+## Overview
+
+The **OH_NativeBuffer_Config** struct defines the **OH_NativeBuffer** attribute configuration, which is used when you apply for a new **OH_NativeBuffer** instance or query the attributes of an existing instance.
+
+\@syscap SystemCapability.Graphic.Graphic2D.OH_NativeBuffer
+
+**Since**
+
+9
+
+**Related Modules**
+
+[OH_NativeBuffer](_o_h___native_buffer.md)
+
+
+## Summary
+
+
+### Member Variables
+
+| Name| Description|
+| -------- | -------- |
+| width | Width, in pixels.|
+| height | Height, in pixels.|
+| format | Pixel map format.|
+| usage | Description of the buffer usage.|

en/application-dev/reference/native-apis/avcodec__audio__channel__layout_8h.md

+# avcodec_audio_channel_layout.h
+
+
+## Overview
+
+The **avcodec_audio_channel_layout.h** file declares the enums used for audio codec.
+
+**Since**
+
+9
+
+**Related Modules**
+
+[AudioDecoder](_audio_decoder.md)
+
+
+## Summary
+
+
+### Enums
+
+| Name| Description| 
+| -------- | -------- |
+| [OHOS::Media::AudioChannelSet](_audio_decoder.md#audiochannelset) : uint64_t {<br>**FRONT_LEFT** = 1ULL &lt;&lt; 0U, **FRONT_RIGHT** = 1ULL &lt;&lt; 1U, **FRONT_CENTER** = 1ULL &lt;&lt; 2U, **LOW_FREQUENCY** = 1ULL &lt;&lt; 3U,<br>**BACK_LEFT** = 1ULL &lt;&lt; 4U, **BACK_RIGHT** = 1ULL &lt;&lt; 5U, **FRONT_LEFT_OF_CENTER** = 1ULL &lt;&lt; 6U, **FRONT_RIGHT_OF_CENTER** = 1ULL &lt;&lt; 7U,<br>**BACK_CENTER** = 1ULL &lt;&lt; 8U, **SIDE_LEFT** = 1ULL &lt;&lt; 9U, **SIDE_RIGHT** = 1ULL &lt;&lt; 10U, **TOP_CENTER** = 1ULL &lt;&lt; 11U,<br>**TOP_FRONT_LEFT** = 1ULL &lt;&lt; 12U, **TOP_FRONT_CENTER** = 1ULL &lt;&lt; 13U, **TOP_FRONT_RIGHT** = 1ULL &lt;&lt; 14U, **TOP_BACK_LEFT** = 1ULL &lt;&lt; 15U,<br>**TOP_BACK_CENTER** = 1ULL &lt;&lt; 16U, **TOP_BACK_RIGHT** = 1ULL &lt;&lt; 17U, **STEREO_LEFT** = 1ULL &lt;&lt; 29U, **STEREO_RIGHT** = 1ULL &lt;&lt; 30U,<br>**WIDE_LEFT** = 1ULL &lt;&lt; 31U, **WIDE_RIGHT** = 1ULL &lt;&lt; 32U, **SURROUND_DIRECT_LEFT** = 1ULL &lt;&lt; 33U, **SURROUND_DIRECT_RIGHT** = 1ULL &lt;&lt; 34U,<br>**LOW_FREQUENCY_2** = 1ULL &lt;&lt; 35U, **TOP_SIDE_LEFT** = 1ULL &lt;&lt; 36U, **TOP_SIDE_RIGHT** = 1ULL &lt;&lt; 37U, **BOTTOM_FRONT_CENTER** = 1ULL &lt;&lt; 38U,<br>**BOTTOM_FRONT_LEFT** = 1ULL &lt;&lt; 39U, **BOTTOM_FRONT_RIGHT** = 1ULL &lt;&lt; 40U, **AMBISONICS_ACN0** = 1ULL &lt;&lt; 41U, OHOS::Media::AMBISONICS_ACN1 = 1ULL &lt;&lt; 42U,<br>OHOS::Media::AMBISONICS_ACN2 = 1ULL &lt;&lt; 43U, OHOS::Media::AMBISONICS_ACN3 = 1ULL &lt;&lt; 44U, OHOS::Media::AMBISONICS_W = AMBISONICS_ACN0, OHOS::Media::AMBISONICS_Y = AMBISONICS_ACN1,<br>OHOS::Media::AMBISONICS_Z = AMBISONICS_ACN2, OHOS::Media::AMBISONICS_X = AMBISONICS_ACN3, OHOS::Media::AMBISONICS_ACN4 = 1ULL &lt;&lt; 45U, OHOS::Media::AMBISONICS_ACN5 = 1ULL &lt;&lt; 46U,<br>OHOS::Media::AMBISONICS_ACN6 = 1ULL &lt;&lt; 47U, OHOS::Media::AMBISONICS_ACN7 = 1ULL &lt;&lt; 48U, OHOS::Media::AMBISONICS_ACN8 = 1ULL &lt;&lt; 49U, OHOS::Media::AMBISONICS_ACN9 = 1ULL &lt;&lt; 50U,<br>OHOS::Media::AMBISONICS_ACN10 = 1ULL &lt;&lt; 51U, OHOS::Media::AMBISONICS_ACN11 = 1ULL &lt;&lt; 52U, OHOS::Media::AMBISONICS_ACN12 = 1ULL &lt;&lt; 53U, OHOS::Media::AMBISONICS_ACN13 = 1ULL &lt;&lt; 54U,<br>OHOS::Media::AMBISONICS_ACN14 = 1ULL &lt;&lt; 55U, OHOS::Media::AMBISONICS_ACN15 = 1ULL &lt;&lt; 56U<br>} | Enumerates the audio channel numbers. Each channel number is mapped to a variable of int64.| 
+| [OHOS::Media::AudioChannelLayout](_audio_decoder.md#audiochannellayout) : uint64_t {<br>**UNKNOWN_CHANNEL_LAYOUT** = 0, **MONO** = (AudioChannelSet::FRONT_CENTER), **STEREO** = (AudioChannelSet::FRONT_LEFT \| AudioChannelSet::FRONT_RIGHT), **CH_2POINT1** = (STEREO \| AudioChannelSet::LOW_FREQUENCY),<br>**CH_2_1** = (STEREO \| AudioChannelSet::BACK_CENTER), **SURROUND** = (STEREO \| AudioChannelSet::FRONT_CENTER), **CH_3POINT1** = (SURROUND \| AudioChannelSet::LOW_FREQUENCY), **CH_4POINT0** = (SURROUND \| AudioChannelSet::BACK_CENTER),<br>**CH_4POINT1** = (CH_4POINT0 \| AudioChannelSet::LOW_FREQUENCY), **CH_2_2** = (STEREO \| AudioChannelSet::SIDE_LEFT \| AudioChannelSet::SIDE_RIGHT), **QUAD** = (STEREO \| AudioChannelSet::BACK_LEFT \| AudioChannelSet::BACK_RIGHT), **CH_5POINT0** = (SURROUND \| AudioChannelSet::SIDE_LEFT \| AudioChannelSet::SIDE_RIGHT),<br>**CH_5POINT1** = (CH_5POINT0 \| AudioChannelSet::LOW_FREQUENCY), **CH_5POINT0_BACK** = (SURROUND \| AudioChannelSet::BACK_LEFT \| AudioChannelSet::BACK_RIGHT), **CH_5POINT1_BACK** = (CH_5POINT0_BACK \| AudioChannelSet::LOW_FREQUENCY), **CH_6POINT0** = (CH_5POINT0 \| AudioChannelSet::BACK_CENTER),<br>**CH_6POINT0_FRONT** = (CH_2_2 \| AudioChannelSet::FRONT_LEFT_OF_CENTER \| AudioChannelSet::FRONT_RIGHT_OF_CENTER), **HEXAGONAL** = (CH_5POINT0_BACK \| AudioChannelSet::BACK_CENTER), **CH_6POINT1** = (CH_5POINT1 \| AudioChannelSet::BACK_CENTER), **CH_6POINT1_BACK** = (CH_5POINT1_BACK \| AudioChannelSet::BACK_CENTER),<br>**CH_6POINT1_FRONT** = (CH_6POINT0_FRONT \| AudioChannelSet::LOW_FREQUENCY), **CH_7POINT0** = (CH_5POINT0 \| AudioChannelSet::BACK_LEFT \| AudioChannelSet::BACK_RIGHT), **CH_7POINT0_FRONT** = (CH_5POINT0 \| AudioChannelSet::FRONT_LEFT_OF_CENTER \| AudioChannelSet::FRONT_RIGHT_OF_CENTER), **CH_7POINT1** = (CH_5POINT1 \| AudioChannelSet::BACK_LEFT \| AudioChannelSet::BACK_RIGHT),<br>**CH_7POINT1_WIDE** = (CH_5POINT1 \| AudioChannelSet::FRONT_LEFT_OF_CENTER \| AudioChannelSet::FRONT_RIGHT_OF_CENTER), **CH_7POINT1_WIDE_BACK**, **CH_3POINT1POINT2** = (CH_3POINT1 \| AudioChannelSet::TOP_FRONT_LEFT \| AudioChannelSet::TOP_FRONT_RIGHT), **CH_5POINT1POINT2** = (CH_5POINT1 \| AudioChannelSet::TOP_SIDE_LEFT \| AudioChannelSet::TOP_SIDE_RIGHT),<br>**CH_5POINT1POINT4**, **CH_7POINT1POINT2** = (CH_7POINT1 \| AudioChannelSet::TOP_SIDE_LEFT \| AudioChannelSet::TOP_SIDE_RIGHT), **CH_7POINT1POINT4**, **CH_9POINT1POINT4** = (CH_7POINT1POINT4 \| AudioChannelSet::WIDE_LEFT \| AudioChannelSet::WIDE_RIGHT),<br>**CH_9POINT1POINT6** = (CH_9POINT1POINT4 \| AudioChannelSet::TOP_SIDE_LEFT \| AudioChannelSet::TOP_SIDE_RIGHT), **CH_10POINT2**, **CH_22POINT2**, **OCTAGONAL** = (CH_5POINT0 \| AudioChannelSet::BACK_LEFT \| AudioChannelSet::BACK_CENTER \| AudioChannelSet::BACK_RIGHT),<br>**HEXADECAGONAL**, **STEREO_DOWNMIX** = (AudioChannelSet::STEREO_LEFT \| AudioChannelSet::STEREO_RIGHT), **HOA_FIRST**, **HOA_SECOND**,<br>**HOA_THIRD**<br>} | Enumerates the types of the audio channel numbers. The output format of the decoder is represented as the channel type of the codec.| 

en/application-dev/reference/native-apis/native__audiocapturer_8h.md

+# native_audiocapturer.h
+
+
+## Overview
+
+The **native_audiocapturer.h** file declares the functions related to an audio capturer.
+
+\@syscap SystemCapability.Multimedia.Audio.Core
+
+**Since**
+
+10
+
+**Related Modules**
+
+[OHAudio](_o_h_audio.md)
+
+
+## Summary
+
+
+### Functions
+
+| Name| Description| 
+| -------- | -------- |
+| [OH_AudioCapturer_Release](_o_h_audio.md#oh_audiocapturer_release) ([OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) \*capturer) | Releases an audio capturer.| 
+| [OH_AudioCapturer_Start](_o_h_audio.md#oh_audiocapturer_start) ([OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) \*capturer) | Starts an audio capturer.| 
+| [OH_AudioCapturer_Pause](_o_h_audio.md#oh_audiocapturer_pause) ([OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) \*capturer) | Pauses an audio capturer.| 
+| [OH_AudioCapturer_Stop](_o_h_audio.md#oh_audiocapturer_stop) ([OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) \*capturer) | Stops an audio capturer.| 
+| [OH_AudioCapturer_Flush](_o_h_audio.md#oh_audiocapturer_flush) ([OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) \*capturer) | Flushes obtained audio data.| 
+| [OH_AudioCapturer_GetCurrentState](_o_h_audio.md#oh_audiocapturer_getcurrentstate) ([OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) \*capturer, [OH_AudioStream_State](_o_h_audio.md#oh_audiostream_state) \*state) | Obtains the state of an audio stream.| 
+| [OH_AudioCapturer_GetLatencyMode](_o_h_audio.md#oh_audiocapturer_getlatencymode) ([OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) \*capturer, [OH_AudioStream_LatencyMode](_o_h_audio.md#oh_audiostream_latencymode) \*latencyMode) | Obtains the latency mode of an audio stream.| 
+| [OH_AudioCapturer_GetStreamId](_o_h_audio.md#oh_audiocapturer_getstreamid) ([OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) \*capturer, uint32_t \*streamId) | Obtains the stream ID of an audio stream.| 
+| [OH_AudioCapturer_GetSamplingRate](_o_h_audio.md#oh_audiocapturer_getsamplingrate) ([OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) \*capturer, int32_t \*rate) | Obtains the sampling rate of an audio stream.| 
+| [OH_AudioCapturer_GetChannelCount](_o_h_audio.md#oh_audiocapturer_getchannelcount) ([OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) \*capturer, int32_t \*channelCount) | Obtains the number of channels for an audio stream.| 
+| [OH_AudioCapturer_GetSampleFormat](_o_h_audio.md#oh_audiocapturer_getsampleformat) ([OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) \*capturer, [OH_AudioStream_SampleFormat](_o_h_audio.md#oh_audiostream_sampleformat) \*sampleFormat) | Obtains the sampling format of an audio stream.| 
+| [OH_AudioCapturer_GetEncodingType](_o_h_audio.md#oh_audiocapturer_getencodingtype) ([OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) \*capturer, [OH_AudioStream_EncodingType](_o_h_audio.md#oh_audiostream_encodingtype) \*encodingType) | Obtains the encoding type of an audio stream.| 
+| [OH_AudioCapturer_GetCapturerInfo](_o_h_audio.md#oh_audiocapturer_getcapturerinfo) ([OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) \*capturer, [OH_AudioStream_SourceType](_o_h_audio.md#oh_audiostream_sourcetype) \*sourceType) | Obtains the usage scenario of an audio capturer.| 

en/application-dev/reference/native-apis/native__audiorenderer_8h.md

+# native_audiorenderer.h
+
+
+## Overview
+
+The **native_audiorenderer.h** file declares the functions related to an audio renderer.
+
+\@syscap SystemCapability.Multimedia.Audio.Core
+
+**Since**
+
+10
+
+**Related Modules**
+
+[OHAudio](_o_h_audio.md)
+
+
+## Summary
+
+
+### Functions
+
+| Name| Description| 
+| -------- | -------- |
+| [OH_AudioRenderer_Release](_o_h_audio.md#oh_audiorenderer_release) ([OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) \*renderer) | Releases an audio renderer.| 
+| [OH_AudioRenderer_Start](_o_h_audio.md#oh_audiorenderer_start) ([OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) \*renderer) | Starts an audio renderer.| 
+| [OH_AudioRenderer_Pause](_o_h_audio.md#oh_audiorenderer_pause) ([OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) \*renderer) | Pauses an audio renderer.| 
+| [OH_AudioRenderer_Stop](_o_h_audio.md#oh_audiorenderer_stop) ([OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) \*renderer) | Stops an audio renderer.| 
+| [OH_AudioRenderer_Flush](_o_h_audio.md#oh_audiorenderer_flush) ([OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) \*renderer) | Flushes written audio data.| 
+| [OH_AudioRenderer_GetCurrentState](_o_h_audio.md#oh_audiorenderer_getcurrentstate) ([OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) \*renderer, [OH_AudioStream_State](_o_h_audio.md#oh_audiostream_state) \*state) | Obtains the state of an audio stream.| 
+| [OH_AudioRenderer_GetSamplingRate](_o_h_audio.md#oh_audiorenderer_getsamplingrate) ([OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) \*renderer, int32_t \*rate) | Obtains the sampling rate of an audio stream.| 
+| [OH_AudioRenderer_GetStreamId](_o_h_audio.md#oh_audiorenderer_getstreamid) ([OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) \*renderer, uint32_t \*streamId) | Obtains the stream ID of an audio stream.| 
+| [OH_AudioRenderer_GetChannelCount](_o_h_audio.md#oh_audiorenderer_getchannelcount) ([OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) \*renderer, int32_t \*channelCount) | Obtains the number of channels for an audio stream.| 
+| [OH_AudioRenderer_GetSampleFormat](_o_h_audio.md#oh_audiorenderer_getsampleformat) ([OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) \*renderer, [OH_AudioStream_SampleFormat](_o_h_audio.md#oh_audiostream_sampleformat) \*sampleFormat) | Obtains the sampling format of an audio stream.| 
+| [OH_AudioRenderer_GetLatencyMode](_o_h_audio.md#oh_audiorenderer_getlatencymode) ([OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) \*renderer, [OH_AudioStream_LatencyMode](_o_h_audio.md#oh_audiostream_latencymode) \*latencyMode) | Obtains the latency mode of an audio stream.| 
+| [OH_AudioRenderer_GetRendererInfo](_o_h_audio.md#oh_audiorenderer_getrendererinfo) ([OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) \*renderer, [OH_AudioStream_Usage](_o_h_audio.md#oh_audiostream_usage) \*usage) | Obtains the usage scenario of an audio renderer.| 
+| [OH_AudioRenderer_GetEncodingType](_o_h_audio.md#oh_audiorenderer_getencodingtype) ([OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) \*renderer, [OH_AudioStream_EncodingType](_o_h_audio.md#oh_audiostream_encodingtype) \*encodingType) | Obtains the encoding type of an audio stream.| 

en/application-dev/reference/native-apis/native__audiostream__base_8h.md

+# native_audiostream_base.h
+
+
+## Overview
+
+The **native_audiostream_base.h** file declares the basic data structure of **OHAudio**.
+
+\@syscap SystemCapability.Multimedia.Audio.Core
+
+**Since**
+
+10
+
+**Related Modules**
+
+[OHAudio](_o_h_audio.md)
+
+
+## Summary
+
+
+### Structs
+
+| Name| Description| 
+| -------- | -------- |
+| [OH_AudioRenderer_Callbacks_Struct](_o_h___audio_renderer___callbacks___struct.md) | Defines a pointer to the callback functions related to an audio renderer.| 
+| [OH_AudioCapturer_Callbacks_Struct](_o_h___audio_capturer___callbacks___struct.md) | Defines a pointer to the callback functions related to an audio capturer.| 
+
+
+### Types
+
+| Name| Description| 
+| -------- | -------- |
+| [OH_AudioStreamBuilder](_o_h_audio.md#oh_audiostreambuilder) | Defines an audio stream builder.| 
+| [OH_AudioRenderer](_o_h_audio.md#oh_audiorenderer) | Defines an audio renderer.| 
+| [OH_AudioCapturer](_o_h_audio.md#oh_audiocapturer) | Defines an audio capturer.| 
+| [OH_AudioRenderer_Callbacks](_o_h_audio.md#oh_audiorenderer_callbacks) | Defines a pointer to the callback functions related to an audio renderer.| 
+| [OH_AudioCapturer_Callbacks](_o_h_audio.md#oh_audiocapturer_callbacks) | Defines a pointer to the callback functions related to an audio capturer.| 
+
+
+### Enum
+
+| Name| Description| 
+| -------- | -------- |
+| [OH_AudioStream_Result](_o_h_audio.md#oh_audiostream_result) { [AUDIOSTREAM_SUCCESS](_o_h_audio.md), [AUDIOSTREAM_ERROR_INVALID_PARAM](_o_h_audio.md), [AUDIOSTREAM_ERROR_ILLEGAL_STATE](_o_h_audio.md), [AUDIOSTREAM_ERROR_SYSTEM](_o_h_audio.md) } | Enumerates the audio stream operation results.| 
+| [OH_AudioStream_Type](_o_h_audio.md#oh_audiostream_type) { [AUDIOSTREAM_TYPE_RENDERER](_o_h_audio.md) = 1, [AUDIOSTREAM_TYPE_CAPTURER](_o_h_audio.md) = 2 } | Enumerates the audio stream types.| 
+| [OH_AudioStream_SampleFormat](_o_h_audio.md#oh_audiostream_sampleformat) { [AUDIOSTREAM_SAMPLE_U8](_o_h_audio.md) = 0, [AUDIOSTREAM_SAMPLE_S16LE](_o_h_audio.md) = 1, [AUDIOSTREAM_SAMPLE_S24LE](_o_h_audio.md) = 2, [AUDIOSTREAM_SAMPLE_S32LE](_o_h_audio.md) = 3 } | Enumerates the sampling formats of audio streams.| 
+| [OH_AudioStream_EncodingType](_o_h_audio.md#oh_audiostream_encodingtype) { **AUDIOSTREAM_ENCODING_TYPE_RAW** = 0 } | Enumerates the encoding types of audio streams.| 
+| [OH_AudioStream_Usage](_o_h_audio.md#oh_audiostream_usage) { **AUDIOSTREAM_USAGE_UNKNOWN** = 0, **AUDIOSTREAM_USAGE_MUSIC** = 1, **AUDIOSTREAM_USAGE_COMMUNICATION** = 2, **AUDIOSTREAM_USAGE_GAME** = 11 } | Enumerates the usage scenarios of audio output streams.| 
+| [OH_AudioStream_LatencyMode](_o_h_audio.md#oh_audiostream_latencymode) { [AUDIOSTREAM_LATENCY_MODE_NORMAL](_o_h_audio.md) } | Enumerates the latency modes of audio streams.| 
+| [OH_AudioStream_State](_o_h_audio.md#oh_audiostream_state) {<br>[AUDIOSTREAM_STATE_INVALID](_o_h_audio.md) = -1, [AUDIOSTREAM_STATE_PREPARED](_o_h_audio.md) = 1, [AUDIOSTREAM_STATE_RUNNING](_o_h_audio.md) = 2, [AUDIOSTREAM_STATE_STOPPED](_o_h_audio.md) = 3,<br>[AUDIOSTREAM_STATE_RELEASED](_o_h_audio.md) = 4, [AUDIOSTREAM_STATE_PAUSED](_o_h_audio.md) = 5<br>} | Enumerates the audio stream states.| 
+| [OH_AudioStream_SourceType](_o_h_audio.md#oh_audiostream_sourcetype) { **AUDIOSTREAM_SOURCE_TYPE_INVALID** = -1, **AUDIOSTREAM_SOURCE_TYPE_MIC**, **AUDIOSTREAM_SOURCE_TYPE_VOICE_RECOGNITION** = 1, **AUDIOSTREAM_SOURCE_TYPE_VOICE_COMMUNICATION** = 7 } | Enumerates the usage scenarios of audio input streams.|