public override void Apply(VideoWriterArgs writerArgs, FFmpegOutputOptionArgs outputOptionArgs)
{
outputOptionArgs.SetVideoCodec(Codecs.FFmpegVideoCodec.hevc_qsv)
.AddArg("load_plugin", "hevc_hw")
.AddArg("q", 2)
.AddArg("preset:v", "veryfast");
}
public override void Apply(AudioWriterArgs audioWriterArgs, FFmpegOutputOptionArgs outputOptionArgs)
{
// quality: 0 (lowest) to 10 (highest)
var qscale = (10 * (audioWriterArgs.AudioQuality - 1)) / 99;
outputOptionArgs.SetAudioCodec(Codecs.FFmpegAudioCodec.libvorbis)
.AddArg("qscale:a", qscale);
}
public override void Apply(AudioWriterArgs audioWriterArgs, FFmpegOutputOptionArgs outputOptionArgs)
{
// quality: 9 (lowest) to 0 (highest)
var qscale = (100 - audioWriterArgs.AudioQuality) / 11;
outputOptionArgs.SetAudioCodec(Codecs.FFmpegAudioCodec.libmp3lame)
.AddArg("qscale:a", qscale);
}
public override void Apply(VideoWriterArgs writerArgs, FFmpegOutputOptionArgs outputOptionArgs)
{
// quality: 31 (lowest) to 1 (highest)
var qscale = 31 - ((writerArgs.VideoQuality - 1) * 30) / 99;
outputOptionArgs.SetVideoCodec(Codecs.FFmpegVideoCodec.libxvid)
.AddArg("qscale:v", qscale);
}
public override void Apply(VideoWriterArgs videoWriterArgs, FFmpegOutputOptionArgs outputOptionArgs)
{
// quality: 63 (lowest) to 4 (highest)
var crf = 63 - ((videoWriterArgs.VideoQuality - 1) * 59) / 99;
outputOptionArgs.SetVideoCodec(Codecs.FFmpegVideoCodec.libvpx)
.AddArg("crf", crf)
.SetVideoBitrate("1M");
}
public override void Apply(VideoWriterArgs videoWriterArgs, FFmpegOutputOptionArgs outputOptionArgs)
{
// quality: 63 (lowest) to 0 (highest)
var crf = (63 * (100 - videoWriterArgs.VideoQuality)) / 99;
outputOptionArgs.SetVideoCodec(Codecs.FFmpegVideoCodec.libvpx_vp9)
.AddArg("crf", crf)
.SetVideoBitrate(0);
}
public override void Apply(AudioWriterArgs audioWriterArgs, FFmpegOutputOptionArgs outputOptionArgs)
{
// bitrate: 32k to 512k (steps of 32k)
var b = 32 * (1 + (15 * (audioWriterArgs.AudioQuality - 1)) / 99);
outputOptionArgs.SetAudioCodec(Codecs.FFmpegAudioCodec.aac)
.AddArg("-strict -2")
.SetAudioBitrate($"{b}k")
;
}
public override void Apply(VideoWriterArgs writerArgs, FFmpegOutputOptionArgs outputOptionArgs)
{
// quality: 51 (lowest) to 0 (highest)
var crf = (51 * (100 - writerArgs.VideoQuality)) / 99;
outputOptionArgs.SetVideoCodec(Codecs.FFmpegVideoCodec.libx264)
.AddArg("crf", crf)
//"yuv420p", "yuv444p"
.SetPixFormat(Formats.FFmpegPixFormat.yuv420p)
//"veryslow", "slower", "slow", "medium", "fast", "faster", "veryfast", "superfast", "ultrafast"
.AddArg("preset", "ultrafast");
}
public abstract void Apply(VideoWriterArgs videoWriterArgs, FFmpegOutputOptionArgs outputArgs);
public abstract void Apply(AudioWriterArgs audioWriterArgs, FFmpegOutputOptionArgs outputOptionArgs);
