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codec_interface-h.md

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# codec\_interface.h
## **Overview**
**Related Modules:**
[Codec](Codec.md)
**Description:**
Declares codec-related APIs, including functions for initializing audio and video codecs, setting parameters, and controlling and transferring data.
**Since:**
1.0
**Version:**
1.0
## **Summary**
## Functions

Function Name	Description
CodecInit ()	int32_t Initializes the internal audio and video submodules of the codec.
CodecDeinit ()	int32_t Deinitializes the internal audio and video submodules of the codec.
CodecEnumerateCapbility (uint32_t index, CodecCapbility *cap)	int32_t Obtains the capabilities of a specified media type based on an index.
CodecGetCapbility (AvCodecMime mime, CodecType type, uint32_t flags, CodecCapbility *cap)	int32_t Obtains the capabilities of a specified media type.
CodecCreate (const char name, const Param attr, int len, CODEC_HANDLETYPE *handle)	int32_t Creates a specific codec component and returns the component context through a handle.
CodecDestroy (CODEC_HANDLETYPE handle)	int32_t Destroys a codec component.
CodecSetPortMode (CODEC_HANDLETYPE handle, DirectionType type, BufferMode mode)	int32_t Sets the input or output buffer mode.
CodecSetParameter (CODEC_HANDLETYPE handle, const Param *params, int paramCnt)	int32_t Sets parameters required by a codec component.
CodecGetParameter (CODEC_HANDLETYPE handle, Param *params, int paramCnt)	int32_t Obtains parameters from a codec component.
CodecStart (CODEC_HANDLETYPE handle)	int32_t Starts a codec component.
CodecStop (CODEC_HANDLETYPE handle)	int32_t Stops a codec component.
CodecFlush (CODEC_HANDLETYPE handle, DirectionType directType)	int32_t Clears the cache when the codec component is the running state.
CodecQueueInput (CODEC_HANDLETYPE handle, const InputInfo *inputData, uint32_t timeoutMs)	int32_t Queues input data.
CodecDequeInput (CODEC_HANDLETYPE handle, uint32_t timeoutMs, InputInfo *inputData)	int32_t Dequeues input data that has been used.
CodecQueueOutput (CODEC_HANDLETYPE handle, OutputInfo *outInfo, uint32_t timeoutMs, int releaseFenceFd)	int32_t Queues output data.
CodecDequeueOutput (CODEC_HANDLETYPE handle, uint32_t timeoutMs, int acquireFd, OutputInfo outInfo)	int32_t Dequeues output data.
CodecSetCallback (CODEC_HANDLETYPE handle, const CodecCallback *cb, UINTPTR instance)	int32_t Sets the callback function.