harmony 鸿蒙native_avcodec_videoencoder.h
native_avcodec_videoencoder.h
Overview
The native_avcodec_videoencoder.h file declares the native APIs used for video encoding.
Since
9
Related Modules
Summary
Types
| Name | Description |
|---|---|
| OH_VideoEncodeBitrateMode | Defines an enum that enumerates the bit rate modes of a video encoder. |
Enums
| Name | Description |
|---|---|
| OH_VideoEncodeBitrateMode { CBR = 0, VBR = 1, CQ = 2 } |
Enumerates the bit rate modes of a video encoder. |
Functions
| Name | Description |
|---|---|
| *OH_VideoEncoder_CreateByMime (const char *mime) | Creates a video encoder instance based on a Multipurpose Internet Mail Extension (MIME) type. This function is recommended in most cases. |
| *OH_VideoEncoder_CreateByName (const char *name) | Creates a video encoder instance based on an encoder name. To use this function, you must know the exact name of the encoder. |
| OH_VideoEncoder_Destroy (OH_AVCodec *codec) | Clears the internal resources of a video encoder and destroys the encoder instance. |
| OH_VideoEncoder_SetCallback (OH_AVCodec *codec, OH_AVCodecAsyncCallback callback, void *userData) | Sets an asynchronous callback so that your application can respond to events generated by a video encoder. |
| OH_VideoEncoder_Configure (OH_AVCodec *codec, OH_AVFormat *format) | Configures a video encoder. Typically, you need to configure the description information about the video track to be encoded. |
| OH_VideoEncoder_Prepare (OH_AVCodec *codec) | Prepares internal resources for a video encoder. This function must be called after Configure. |
| OH_VideoEncoder_Start (OH_AVCodec *codec) | Starts a video encoder. This function can be called only after the encoder is prepared successfully. |
| OH_VideoEncoder_Stop (OH_AVCodec *codec) | Stops a video encoder. |
| OH_VideoEncoder_Flush (OH_AVCodec *codec) | Clears the input and output data in the internal buffer of a video encoder. |
| OH_VideoEncoder_Reset (OH_AVCodec *codec) | Resets a video encoder. |
| *OH_VideoEncoder_GetOutputDescription (OH_AVCodec *codec) | Obtains the description information about the output data of a video encoder. For details, see OH_AVFormat. |
| OH_VideoEncoder_SetParameter (OH_AVCodec *codec, OH_AVFormat *format) | Sets dynamic parameters for a video encoder. |
| OH_VideoEncoder_GetSurface (OH_AVCodec *codec, OHNativeWindow **window) | Sets an input surface for a video encoder. This function must be called prior to Prepare. |
| OH_VideoEncoder_FreeOutputData (OH_AVCodec *codec, uint32_t index) | Frees an output buffer of a video encoder. |
| OH_VideoEncoder_NotifyEndOfStream (OH_AVCodec *codec) | Notifies a video encoder that input streams end. You are advised to use this function for notification. |
| OH_VideoEncoder_PushInputData (OH_AVCodec *codec, uint32_t index, OH_AVCodecBufferAttr attr) | Pushes the input buffer filled with data to a video encoder. |
| *OH_VideoEncoder_GetInputDescription (OH_AVCodec *codec) | Obtains the description information received by the video encoder. This function must be called after Configure. For details, see OH_AVFormat. |
| OH_VideoEncoder_IsValid (OH_AVCodec *codec, bool *isValid) | Checks whether a video encoder instance is valid. |
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