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Option
Crop
(Left,Right,Top,Bottom)
AutoCrop
Size
Framerate
Preview
Bitrate
"Fit each video in"
Two Pass
Force (QuickTime/ffmpeg
Decoding)
Deinterlace
qmin
Extra ffmpeg Flags
Audio Hz
Audio Bitrate
Audio Channels
Volume
Explanation
Will remove n number of pixels from a side, depending on which field a number is entered.
Crop values must be even numbers.
By This File: Will find video edges (black bars, etc) and automatically set Crop settings for
all videos according to the selected file only. Automatic: Will find video edges (black bars,
etc) and automatically set Crop settings for each file during their conversions.
Dimensions of the video in pixels. This setting will override any presets for each video type.
Video frames per second. Film: 24, NTSC: 29.97, PAL: 25. This setting will override presets.
Shows a graphical preview of a frame n seconds into the video. Any settings such as Size
or Crop will be reflected here. Check "Show Compression" to view image degradation
depending on the format selected.
Data rate for the video. Measured in kilobits per second. Dialup: 56, DSL: ~1500
Will calculate a Bitrate constrained to n megabytes based on the reported running time of
each video. Useful with the Two Pass option.
Will take a quick overview pass at a video to determine which parts need more resources to
encode. The second pass will encode the video using information determined in the first.
Chooses which decoding engine to use. Left alone, VisualHub will determine by filetype
which to use. Troublesome clips may benefit by the tweaking of this setting.
Video from sources such as DV or DVD may demonstrate what's commonly referred to as
"combing artifacts". This setting will throw out every other line of video to combat that.
Chooses the minimum quantizer (quality) used. A high number (8+) will mean lower quality.
Additional ffmpeg command line flags can be added here for very advanced users.
Audio fidelity in Hertz. DVD:48000, CD:44100. Lower levels will result in lower audio quality.
Data rate for the audio. Measured in kilobits per second. Standard MP3: 128
Chooses between Mono and Stereo. Mono requires only half the Audio Bitrate to encode.
Amplifies or softens overall audio volume to n% of the original. A value of 0 means no audio.
Warning: Certain settings used in the Advanced
drawer may create video files incompatible with
some devices.
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