Instance Property

sourceVideoFormat

A core media video format description object that defines the video format.

Declaration

var sourceVideoFormat: CMVideoFormatDescription? { get set }

Discussion

Setting this property will allow the output settings assistant to make a more informed recommendation for the video settings that should be used. After setting this property, you should re-query the videoSettings property to get the new recommendation. The default value is NULL, which means that the output settings assistant does not know anything about the format of your video data.

When setting a non-NULL value for this property and using the output settings assistant to initialize an AVAssetWriterInput instance, the same format description should be used to initialize the AVAssetWriterInput, along with the dictionary from the videoSettings property.

See Also

Configuring Output Settings

var outputFileType: AVFileType

A UTI indicating the type of file to write.

var audioSettings: [String : Any]?

A dictionary containing the values to use when creating an asset writer input.

var sourceAudioFormat: CMAudioFormatDescription?

The format of the audio data when determining the audio settings to use.

var sourceVideoAverageFrameDuration: CMTime

A time describing the average frame duration of the video data.

var videoSettings: [String : Any]?

A dictionary containing the values to use when creating an asset writer input.

var sourceVideoMinFrameDuration: CMTime

A time describing the minimum frame duration of the video data.

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