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.

System capability: SystemCapability.Multimedia.Media.AVMetadataExtractor

Library: libavmetadata_extractor.so

Since: 18

Related module: AVMetadataExtractor

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*.
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*.
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*.
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*.
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*.
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.
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*.
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.
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*.
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.
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.
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.
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.
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.
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*.
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.
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.
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.
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 the definition of OH_Core_HdrType in media_types.h.
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.
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.