harmony 鸿蒙native_avdemuxer.h

2025-06-12 浏览 (1)

native_avdemuxer.h

Overview

Declares the APIs for parsing audio and video media data.

Library: libnative_media_avdemuxer.so

Since: 10

Related module: AVDemuxer

Summary

Types

NameDescription
typedef void(* DRM_MediaKeySystemInfoCallback) (DRM_MediaKeySystemInfo *mediaKeySystemInfo)Defines a pointer to the callback function for the media key system information. (This type is deprecated from API version 14.)
typedef void(* Demuxer_MediaKeySystemInfoCallback) (OH_AVDemuxer *demuxer, DRM_MediaKeySystemInfo *mediaKeySystemInfo)Defines a pointer to the callback function for the media key system information.

Functions

NameDescription
OH_AVDemuxer * OH_AVDemuxer_CreateWithSource (OH_AVSource *source)Creates an OH_AVDemuxer instance based on a source instance.
OH_AVErrCode OH_AVDemuxer_Destroy (OH_AVDemuxer *demuxer)Destroys an OH_AVDemuxer instance and clears internal resources.
OH_AVErrCode OH_AVDemuxer_SelectTrackByID (OH_AVDemuxer *demuxer, uint32_t trackIndex)Selects a track from which the demuxer reads sample data.
OH_AVErrCode 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_AVErrCode OH_AVDemuxer_ReadSample (OH_AVDemuxer *demuxer, uint32_t trackIndex, OH_AVMemory *sample, OH_AVCodecBufferAttr *info)Reads the sample and related information from the specified track. (This function is deprecated from API version 11.)
OH_AVErrCode OH_AVDemuxer_ReadSampleBuffer (OH_AVDemuxer *demuxer, uint32_t trackIndex, OH_AVBuffer *sample)Obtains the compressed frame and related information at the current position from the selected track.
OH_AVErrCode 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.
OH_AVErrCode OH_AVDemuxer_SetMediaKeySystemInfoCallback (OH_AVDemuxer *demuxer, DRM_MediaKeySystemInfoCallback callback)Sets an asynchronous callback for obtaining the media key system information. (This function is deprecated from API version 14.)
OH_AVErrCode OH_AVDemuxer_SetDemuxerMediaKeySystemInfoCallback (OH_AVDemuxer *demuxer, Demuxer_MediaKeySystemInfoCallback callback)Sets an asynchronous callback for obtaining the media key system information.
OH_AVErrCode OH_AVDemuxer_GetMediaKeySystemInfo (OH_AVDemuxer *demuxer, DRM_MediaKeySystemInfo *mediaKeySystemInfo)Obtains the media key system information.

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