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package main
import "log"
////////////////////////////////////////////////////////////////////////////
// Constant and data type/structure definitions
// The Encoding struct defines the structure to hold encoding values
type Encoding struct {
VES string // video encoding method set
AES string // audio encoding method set
SES string // subtitle encoding method set
VEP string // video encoding method prepend
AEP string // audio encoding method prepend
SEP string // subtitle encoding method prepend
VEA string // video encoding method append
AEA string // audio encoding method append
ABR string // audio bitrate
CRF string // the CRF value: 0-51. Higher CRF gives lower quality
Ext string // extension for the output file
}
////////////////////////////////////////////////////////////////////////////
// Global variables definitions
////////////////////////////////////////////////////////////////////////////
// Global variables definitions
var Defaults map[string]Encoding
func init() {
initVars()
debug(Opts.CRF, 3)
initDefaults()
debug(Opts.CRF, 3)
}
func initDefaults() {
Defaults = map[string]Encoding{
"copy": {
AES: "copy",
VES: "copy",
SES: "-c:s copy",
ABR: "64k",
CRF: "42",
Ext: _encodedExt,
},
"webm": {
AES: "libopus",
VES: "libvpx-vp9",
SES: "-c:s copy",
ABR: "64k",
CRF: "42",
Ext: _encodedExt,
},
"x265-opus": {
AES: "libopus",
VES: "libx265",
ABR: "64k",
CRF: "28",
Ext: _encodedExt,
},
"wx": {
AES: "aac",
AEA: "-q:a 3",
VES: "libx264",
ABR: "48k",
CRF: "33",
Ext: "_.m4v",
},
"x264-mp3": {
AES: "libmp3lame",
AEA: "-q:a 3",
VES: "libx264",
ABR: "256k",
CRF: "23",
Ext: "_.mp4",
},
"youtube": {
// https://trac.ffmpeg.org/wiki/Encode/YouTube
// https://trac.ffmpeg.org/wiki/Encode/HighQualityAudio
AES: "libvorbis",
AEA: "-q:a 5",
VES: "libx264",
VEA: "-pix_fmt yuv420p",
ABR: "",
CRF: "20",
Ext: "_.avi",
},
}
}
func getDefault() {
if encDefault, ok := Defaults[Opts.Target]; ok {
// debug(encDefault.Ext, 2)
Opts.Encoding = encDefault
// debug(Opts.Encoding.Ext, 2)
// debug(Opts.Ext, 2)
} else {
log.Fatal(progname + " Error: Wrong target option passed to -t.")
}
initVals()
debug(Opts.CRF, 3)
if Opts.Suffix != "" {
Opts.Suffix = "_" + Opts.Suffix
}
}
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