/// <summary>
///
/// </summary>
/// <param name="width">Width of frame in pixels</param>
/// <param name="height">Height of frame in pixels</param>
/// <param name="bitrate">The bitrate in kb/s</param>
/// <param name="preset">h264 preset</param>
public Quality(int width, int height, int bitrate, H264Preset preset)
{
Width = width;
Height = height;
Bitrate = bitrate;
Preset = preset;
}
/// <summary>
/// Applies an ffmpeg preset to set encoding performance.
/// </summary>
public FFmpegH264VideoCommandBuilder WithPreset(H264Preset preset)
{
if (preset == H264Preset.None)
{
return(this);
}
TryAddSimpleCommand($"-preset {preset.ToString().ToLowerInvariant()}", preset.ToString());
return(this);
}
public FFmpegVideoCommandBuilder WithPreset(H264Preset preset)
{
if (preset == H264Preset.none)
{
return(this);
}
TryAddSimpleCommand($"-preset {preset}", preset.ToString());
return(this);
}
/// <summary>
///
/// </summary>
/// <param name="width">Width of frame in pixels</param>
/// <param name="height">Height of frame in pixels</param>
/// <param name="bitrate">The bitrate in kb/s</param>
/// <param name="preset">h264 preset</param>
/// <param name="profile">h264 profile</param>
public Quality(int width, int height, int bitrate, H264Preset preset, H264Profile profile)
: this(width, height, bitrate, preset)
{
Profile = profile;
}
/// <summary>
/// Generates a set of qualities from a given DefaultQuality level.
/// </summary>
/// <param name="q"></param>
/// <param name="preset"></param>
/// <returns></returns>
public static IEnumerable <IQuality> GenerateDefaultQualities(DefaultQuality q, H264Preset preset)
{
switch (q)
{
case DefaultQuality.potato:
return(new List <Quality>()
{
new Quality(1280, 720, 1600, preset),
new Quality(854, 480, 800, preset),
new Quality(640, 360, 500, preset)
});
case DefaultQuality.low:
return(new List <Quality>()
{
new Quality(1280, 720, 2400, preset),
new Quality(1280, 720, 1600, preset),
new Quality(640, 360, 700, preset),
});
case DefaultQuality.high:
return(new List <Quality>()
{
new Quality(1920, 1080, 6000, preset),
new Quality(1920, 1080, 4000, preset),
new Quality(1280, 720, 2000, preset),
});
case DefaultQuality.ultra:
return(new List <Quality>()
{
new Quality(1920, 1080, 8000, preset),
new Quality(1920, 1080, 6000, preset),
new Quality(1280, 720, 2000, preset),
});
default:
break;
}
// Medium/default
return(new List <Quality>()
{
new Quality(1920, 1080, 3400, preset),
new Quality(1280, 720, 1800, preset),
new Quality(640, 360, 800, preset),
});
}
public static H264VideoConfiguration CreateConfigurationWithPreset(H264Preset preset, string name)
{
switch (preset)
{
case H264Preset.ULTRAFAST:
return(new H264VideoConfiguration
{
Name = name,
BAdaptiveStrategy = BAdapt.NONE,
BFrames = 0,
MvSearchRangeMax = 16,
MvPredictionMode = MvPredictionMode.SPATIAL,
MotionEstimationMethod = H264MotionEstimationMethod.DIA,
Cabac = false,
RcLookahead = 0,
RefFrames = 1,
SubMe = H264SubMe.FULLPEL,
Trellis = H264Trellis.DISABLED,
Partitions = new List <H264Partition> {
H264Partition.NONE
}
});
case H264Preset.SUPERFAST:
return(new H264VideoConfiguration
{
Name = name,
BAdaptiveStrategy = BAdapt.FAST,
BFrames = 3,
MvSearchRangeMax = 16,
MvPredictionMode = MvPredictionMode.SPATIAL,
MotionEstimationMethod = H264MotionEstimationMethod.DIA,
Cabac = true,
RcLookahead = 0,
RefFrames = 1,
SubMe = H264SubMe.SAD,
Trellis = H264Trellis.ENABLED_FINAL_MB,
Partitions = new List <H264Partition> {
H264Partition.I4X4, H264Partition.I8X8
}
});
case H264Preset.VERYFAST:
return(new H264VideoConfiguration
{
Name = name,
BAdaptiveStrategy = BAdapt.FAST,
BFrames = 3,
MvSearchRangeMax = 16,
MvPredictionMode = MvPredictionMode.SPATIAL,
MotionEstimationMethod = H264MotionEstimationMethod.HEX,
Cabac = true,
RcLookahead = 10,
RefFrames = 1,
SubMe = H264SubMe.SATD,
Trellis = H264Trellis.ENABLED_FINAL_MB,
Partitions = new List <H264Partition> {
H264Partition.I4X4, H264Partition.I8X8, H264Partition.P8X8, H264Partition.B8X8
}
});
case H264Preset.FASTER:
return(new H264VideoConfiguration
{
Name = name,
BAdaptiveStrategy = BAdapt.FAST,
BFrames = 3,
MvSearchRangeMax = 16,
MvPredictionMode = MvPredictionMode.SPATIAL,
MotionEstimationMethod = H264MotionEstimationMethod.HEX,
Cabac = true,
RcLookahead = 20,
RefFrames = 2,
SubMe = H264SubMe.QPEL4,
Trellis = H264Trellis.ENABLED_FINAL_MB,
Partitions = new List <H264Partition> {
H264Partition.I4X4, H264Partition.I8X8, H264Partition.P8X8, H264Partition.B8X8
}
});
case H264Preset.FAST:
return(new H264VideoConfiguration
{
Name = name,
BAdaptiveStrategy = BAdapt.FAST,
BFrames = 3,
MvSearchRangeMax = 16,
MvPredictionMode = MvPredictionMode.SPATIAL,
MotionEstimationMethod = H264MotionEstimationMethod.HEX,
Cabac = true,
RcLookahead = 30,
RefFrames = 2,
SubMe = H264SubMe.RD_IP,
Trellis = H264Trellis.ENABLED_FINAL_MB,
Partitions = new List <H264Partition> {
H264Partition.I4X4, H264Partition.I8X8, H264Partition.P8X8, H264Partition.B8X8
}
});
case H264Preset.MEDIUM:
return(new H264VideoConfiguration
{
Name = name,
BAdaptiveStrategy = BAdapt.FAST,
BFrames = 3,
MvSearchRangeMax = 16,
MvPredictionMode = MvPredictionMode.SPATIAL,
MotionEstimationMethod = H264MotionEstimationMethod.HEX,
Cabac = true,
RcLookahead = 40,
RefFrames = 3,
SubMe = H264SubMe.RD_ALL,
Trellis = H264Trellis.ENABLED_ALL,
Partitions = new List <H264Partition> {
H264Partition.I4X4, H264Partition.I8X8, H264Partition.P8X8, H264Partition.B8X8
}
});
case H264Preset.SLOW:
return(new H264VideoConfiguration
{
Name = name,
BAdaptiveStrategy = BAdapt.FULL,
BFrames = 3,
MvSearchRangeMax = 16,
MvPredictionMode = MvPredictionMode.AUTO,
MotionEstimationMethod = H264MotionEstimationMethod.UMH,
Cabac = true,
RcLookahead = 50,
RefFrames = 5,
SubMe = H264SubMe.RD_REF_IP,
Trellis = H264Trellis.ENABLED_ALL,
Partitions = new List <H264Partition> {
H264Partition.ALL
}
});
case H264Preset.SLOWER:
return(new H264VideoConfiguration
{
Name = name,
BAdaptiveStrategy = BAdapt.FULL,
BFrames = 3,
MvSearchRangeMax = 16,
MvPredictionMode = MvPredictionMode.AUTO,
MotionEstimationMethod = H264MotionEstimationMethod.UMH,
Cabac = true,
RcLookahead = 60,
RefFrames = 8,
SubMe = H264SubMe.RD_REF_ALL,
Trellis = H264Trellis.ENABLED_ALL,
Partitions = new List <H264Partition> {
H264Partition.ALL
}
});
case H264Preset.VERYSLOW:
return(new H264VideoConfiguration
{
Name = name,
BAdaptiveStrategy = BAdapt.FULL,
BFrames = 8,
MvSearchRangeMax = 24,
MvPredictionMode = MvPredictionMode.AUTO,
MotionEstimationMethod = H264MotionEstimationMethod.UMH,
Cabac = true,
RcLookahead = 60,
RefFrames = 16,
SubMe = H264SubMe.QPRD,
Trellis = H264Trellis.ENABLED_ALL,
Partitions = new List <H264Partition> {
H264Partition.ALL
}
});
case H264Preset.PLACEBO:
return(new H264VideoConfiguration
{
Name = name,
BAdaptiveStrategy = BAdapt.FULL,
BFrames = 16,
MvSearchRangeMax = 24,
MvPredictionMode = MvPredictionMode.AUTO,
MotionEstimationMethod = H264MotionEstimationMethod.TESA,
Cabac = true,
RcLookahead = 60,
RefFrames = 16,
SubMe = H264SubMe.FULL_RD,
Trellis = H264Trellis.ENABLED_ALL,
Partitions = new List <H264Partition> {
H264Partition.ALL
}
});
default:
throw new ArgumentOutOfRangeException(nameof(preset), preset, null);
}
}
