Class X264Settings

x264 settings. FFMPEG provided with SDK do not have x264 encoder.

Inheritance
object
IBasicVideoSettings
BasicVideoSettings
X264Settings
Inherited Members
Namespace: VisioForge.Core.Types.FFMPEGEXE
Assembly: VisioForge.Core.dll
Syntax
public class X264Settings : BasicVideoSettings

Constructors

X264Settings()

Initializes a new instance of the X264Settings class.

Declaration
public X264Settings()

Properties

BFrames

Gets or sets FFMPEG EXE video B-Frames count.

Declaration
public int BFrames { get; set; }
Property Value
Type Description
int

GOPSize

Gets or sets FFMPEG EXE video GOP size.

Declaration
public int GOPSize { get; set; }
Property Value
Type Description
int

Level

Gets or sets H264 level.

Declaration
public H264Level Level { get; set; }
Property Value
Type Description
H264Level

Mode

Gets or sets X264 mode.

Declaration
public X264Mode Mode { get; set; }
Property Value
Type Description
X264Mode

Preset

Gets or sets H264 preset. Medium by default.

Declaration
public X264Preset Preset { get; set; }
Property Value
Type Description
X264Preset

PresetCustom

Gets or sets H264 custom preset. Set Video_H264_Preset to Custom first.

Declaration
public string PresetCustom { get; set; }
Property Value
Type Description
string

Profile

Gets or sets H264 profile.

Declaration
public H264Profile Profile { get; set; }
Property Value
Type Description
H264Profile

Quantizer

Gets or sets H264 quantizer.

Declaration
public int Quantizer { get; set; }
Property Value
Type Description
int
Remarks

The range of the quantizer scale is 0-51: where 0 is lossless, 23 is default, and 51 is worst possible. A lower value is a higher quality and a subjectively sane range is 18-28. Consider 18 to be visually lossless or nearly so: it should look the same or nearly the same as the input but it isn't technically lossless. The range is exponential, so increasing the CRF value +6 is roughly half the bitrate while -6 is roughly twice the bitrate. General usage is to choose the highest CRF value that still provides an acceptable quality. If the output looks good, then try a higher value and if it looks bad then choose a lower value. (FFMPEG docs).

QuickTimeCompatibility

Gets or sets a value indicating whether Apple QuickTime compatibility enabled.

Declaration
public bool QuickTimeCompatibility { get; set; }
Property Value
Type Description
bool
Remarks

Apple QuickTime only supports YUV planar color space with 4:2:0 chroma subsampling for H.264 video (from FFMPEG docs).

WebFastStart

Gets or sets a value indicating whether fast start mode enabled. Use this mode if you are require file played in browser.

Declaration
public bool WebFastStart { get; set; }
Property Value
Type Description
bool

ZeroTolerance

Gets or sets a value indicating whether FFMPEG EXE H264 encoder ZeroTolerance option will be set.

Declaration
public bool ZeroTolerance { get; set; }
Property Value
Type Description
bool
Remarks

Must be set to true for better network streaming.