VideoCompressAdvancedConfig class

视频压缩进阶配置

Properties

aggressiveCompression → bool?
Enable all aggressive compression settings
finalinherited
audioBitrate → int?
Custom audio bitrate in bits per second.
finalinherited
audioChannels → int?
Audio channels (1 = mono, 2 = stereo)
finalinherited
audioCodec → VAudioCodec?
Audio codec selection
finalinherited
audioSampleRate → int?
Audio sample rate in Hz
finalinherited
autoCorrectOrientation → bool?
Auto-correct video orientation (preserves original orientation)
finalinherited
bFrames → int?
Number of B-frames for better encoding efficiency (0-16)
finalinherited
brightness → double?
Video brightness adjustment (-1.0 to 1.0)
finalinherited
contrast → double?
Video contrast adjustment (-1.0 to 1.0)
finalinherited
crf → int?
Constant Rate Factor (0-51, lower = better quality)
finalinherited
cropRect → VVideoCropRect?
Optional normalized crop in the displayed, explicitly rotated frame.
finalinherited
customHeight → int?
Custom resolution height (must be used with width)
finalinherited
customWidth → int?
Custom resolution width (must be used with height)
finalinherited
dimensionHandling → VDimensionHandling?
Dimension alignment handling (null = smart auto-detection)
finalinherited
encodingSpeed → VEncodingSpeed?
Encoding speed vs quality tradeoff
finalinherited
frameRate → double?
Target frame rate (FPS)
finalinherited
hardwareAcceleration → bool?
Enable hardware acceleration
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
keyframeInterval → int?
Keyframe interval in seconds (larger = better compression)
finalinherited
monoAudio → bool?
Convert audio to mono for smaller file size
finalinherited
noiseReduction → bool?
Apply noise reduction preprocessing
finalinherited
reducedFrameRate → double?
Automatically reduce frame rate for smaller files
finalinherited
removeAudio → bool?
Remove audio track completely
finalinherited
rotation → int?
Rotate video (degrees: 0, 90, 180, 270)
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
saturation → double?
Video saturation adjustment (-1.0 to 1.0)
finalinherited
trimEndMs → int?
Trim video - end time in milliseconds
finalinherited
trimStartMs → int?
Trim video - start time in milliseconds
finalinherited
twoPassEncoding → bool?
Enable two-pass encoding for better quality
finalinherited
variableBitrate → bool?
Enable variable bitrate for better compression efficiency
finalinherited
videoBitrate → int?
Custom video bitrate in bits per second (overrides quality preset).
finalinherited
videoCodec → VVideoCodec?
Video codec selection
finalinherited

Methods

isValid() → bool
Validates the advanced configuration
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toMap() → Map<String, dynamic>
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited