# native_avcodec_audiodecoder.h


## Overview

The **native_avcodec_audiodecoder.h** file declares the native APIs used for audio decoding.

**Library**: libnative_media_adec.so

**Since**: 9

**Related module**: [AudioDecoder](_audio_decoder.md)


## Summary


### Functions

| Name| Description| 
| -------- | -------- |
| OH_AVCodec \* [OH_AudioDecoder_CreateByMime](_audio_decoder.md#oh_audiodecoder_createbymime) (const char \*mime) | Creates an audio decoder instance based on a Multipurpose Internet Mail Extension (MIME) type.| 
| OH_AVCodec \* [OH_AudioDecoder_CreateByName](_audio_decoder.md#oh_audiodecoder_createbyname) (const char \*name) | Creates an audio decoder instance based on a decoder name.| 
| [OH_AVErrCode](_core.md#oh_averrcode) [OH_AudioDecoder_Destroy](_audio_decoder.md#oh_audiodecoder_destroy) (OH_AVCodec \*codec) | Clears the internal resources of an audio decoder and destroys the decoder instance.| 
| [OH_AVErrCode](_core.md#oh_averrcode) [OH_AudioDecoder_SetCallback](_audio_decoder.md#oh_audiodecoder_setcallback) (OH_AVCodec \*codec, [OH_AVCodecAsyncCallback](_o_h___a_v_codec_async_callback.md) callback, void \*userData) | Sets an asynchronous callback so that your application can respond to events generated by an audio decoder.| 
| [OH_AVErrCode](_core.md#oh_averrcode) [OH_AudioDecoder_Configure](_audio_decoder.md#oh_audiodecoder_configure) (OH_AVCodec \*codec, OH_AVFormat \*format) | Configures an audio decoder. Typically, you need to configure the audio description information that can be extracted from the container.| 
| [OH_AVErrCode](_core.md#oh_averrcode) [OH_AudioDecoder_Prepare](_audio_decoder.md#oh_audiodecoder_prepare) (OH_AVCodec \*codec) | Prepares internal resources for an audio decoder.| 
| [OH_AVErrCode](_core.md#oh_averrcode) [OH_AudioDecoder_Start](_audio_decoder.md#oh_audiodecoder_start) (OH_AVCodec \*codec) | Starts an audio decoder after it is prepared successfully.| 
| [OH_AVErrCode](_core.md#oh_averrcode) [OH_AudioDecoder_Stop](_audio_decoder.md#oh_audiodecoder_stop) (OH_AVCodec \*codec) | Stops an audio decoder.| 
| [OH_AVErrCode](_core.md#oh_averrcode) [OH_AudioDecoder_Flush](_audio_decoder.md#oh_audiodecoder_flush) (OH_AVCodec \*codec) | Clears the input and output data in the internal buffer of an audio decoder.| 
| [OH_AVErrCode](_core.md#oh_averrcode) [OH_AudioDecoder_Reset](_audio_decoder.md#oh_audiodecoder_reset) (OH_AVCodec \*codec) | Resets an audio decoder. To continue decoding, you must call **Configure** to configure the decoder again.| 
| OH_AVFormat \* [OH_AudioDecoder_GetOutputDescription](_audio_decoder.md#oh_audiodecoder_getoutputdescription) (OH_AVCodec \*codec) | Obtains the description information about the output data of an audio decoder.| 
| [OH_AVErrCode](_core.md#oh_averrcode) [OH_AudioDecoder_SetParameter](_audio_decoder.md#oh_audiodecoder_setparameter) (OH_AVCodec \*codec, OH_AVFormat \*format) | Sets dynamic parameters for an audio decoder.| 
| [OH_AVErrCode](_core.md#oh_averrcode) [OH_AudioDecoder_PushInputData](_audio_decoder.md#oh_audiodecoder_pushinputdata) (OH_AVCodec \*codec, uint32_t index, [OH_AVCodecBufferAttr](_o_h___a_v_codec_buffer_attr.md) attr) | Pushes the input buffer filled with data to an audio decoder.| 
| [OH_AVErrCode](_core.md#oh_averrcode) [OH_AudioDecoder_FreeOutputData](_audio_decoder.md#oh_audiodecoder_freeoutputdata) (OH_AVCodec \*codec, uint32_t index) | Frees an output buffer of an audio decoder.| 
| [OH_AVErrCode](_core.md#oh_averrcode) [OH_AudioDecoder_IsValid](_audio_decoder.md#oh_audiodecoder_isvalid) (OH_AVCodec \*codec, bool \*isValid) | Checks whether an audio decoder instance is valid. This function is used to check the decoder validity when the background recovers from a fault or an application is switched from the background.|