harmony 鸿蒙avmetadata_extractor_base.h

2025-06-12
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avmetadata_extractor_base.h

Overview

The avmetadata_extractor_base.h file declares the constants used by the AVMetadataExtractor.

Library: libavmetadata_extractor.so

System capability: SystemCapability.Multimedia.Media.AVMetadataExtractor

Since: 18

Related module: AVMetadataExtractor

Summary

Variables

|Name|Description| |–|–| |static const char* OH_AVMETADATA_EXTRACTOR_ALBUM = “album”|Pointer to the key for obtaining the title of the album. The value type is const char*.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_ALBUM_ARTIST = “albumArtist”|Pointer to the key for obtaining the artist of the album. The value type is const char*.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_ARTIST = “artist”|Pointer to the key for obtaining the artist of the media asset. The value type is const char*.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_AUTHOR = “author”|Pointer to the key for obtaining the author of the media asset. The value type is const char*.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_DATE_TIME = “dateTime”|Pointer to the key for obtaining the creation time of the media asset. The value type is const char*.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_DATE_TIME_FORMAT = “dateTimeFormat”|Pointer to the key for obtaining the creation time of the media asset. The value type is const char* and the output format is YYYY-MM-DD HH:mm:ss.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_COMPOSER = “composer”|Pointer to the key for obtaining the composer of the media asset. The value type is const char*.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_DURATION = “duration”|Pointer to the key for obtaining the duration of the media asset, in ms. The value type is int64_t.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_GENRE = “genre”|Pointer to the key for obtaining the type or genre of the media asset. The value type is const char*.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_HAS_AUDIO = “hasAudio”|Pointer to the key for obtaining the flag indicating whether the media asset contains audio. The value type is int32_t.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_HAS_VIDEO = “hasVideo”|Pointer to the key for obtaining the flag indicating whether the media asset contains video. The value type is int32_t.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_MIME_TYPE = “mimeType”|Pointer to the key for obtaining the MIME type of the media asset. The value type is const char*, for example, video/mp4, audio/mp4, and audio/amr wb.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_TRACK_COUNT = “trackCount”|Pointer to the key for obtaining the number of tracks of the media asset. The value type is int32_t.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_SAMPLE_RATE = “sampleRate”|Pointer to the key for obtaining the audio sampling rate, in Hz. The value type is int32_t.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_TITLE = “title”|Pointer to the key for obtaining the title of the media asset. The value type is const char*.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_VIDEO_HEIGHT = “videoHeight”|Pointer to the key for obtaining the video height, in px. The value type is int32_t.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_VIDEO_WIDTH = “videoWidth”|Pointer to the key for obtaining the video weight, in px. The value type is int32_t.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_VIDEO_ORIENTATION = “videoOrientation”|Pointer to the key for obtaining the video rotation direction, in degrees (°). The value type is int32_t.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_VIDEO_IS_HDR_VIVID = “hdrType”|Pointer to the key for obtaining the flag indicating whether the video is an HDR Vivid video. The value type is int32_t.
For details, see OH_Core_HdrType in media_types.h.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_LOCATION_LATITUDE = “latitude”|Pointer to the key for obtaining the latitude in the geographical location. The value type is float.
Since: 18| |static const char* OH_AVMETADATA_EXTRACTOR_LOCATION_LONGITUDE = “longitude”|Pointer to the key for obtaining the longitude in the geographical location. The value type is float.
Since: 18|