- [+] add -tkb TranspBy wireframe

Author: suntong

config.go

@@ -39,6 +39,7 @@ type Options struct {
 	Karaoke    bool          // Add a karaoke audio track to .mp4 MTV
 	TranspFrom string        // Transpose song's key from (e.g. C/C#/Db/D etc)
 	TranspTo   string        // Transpose song's key to (e.g. -tkf C -tkt Db)
+	TranspBy   int           // Transpose song by (e.g. +2, -3, etc) chromatic scale
 	Lang       string        // language selection for audio stream extraction
 	SEL        mFlags        // subtitle encoding language (language picked for reencoded video)
 	OptExtra   string        // more options that will pass to ffmpeg program
@@ -136,6 +137,8 @@ func initVars() {
 		"Transpose song's key from (e.g. C/C#/Db/D etc)")
 	flag.StringVar(&Opts.TranspTo, "tkt", "",
 		"Transpose song's key to (e.g. -tkf C -tkt Db)")
+	flag.IntVar(&Opts.TranspBy, "tkb", 0,
+		"Transpose song by (e.g. +2, -3, etc) chromatic scale")
 	flag.StringVar(&Opts.Lang, "lang", "eng",
 		"language selection for audio stream extraction")
 	flag.Var(&Opts.SEL, "sel",
@@ -288,6 +291,12 @@ func initVals() {
 		len(os.Getenv("FFCVT_TKT")) != 0 {
 		Opts.TranspTo = os.Getenv("FFCVT_TKT")
 	}
+	if Opts.TranspBy == 0 &&
+		len(os.Getenv("FFCVT_TKB")) != 0 {
+		if i, err := strconv.Atoi(os.Getenv("FFCVT_TKB")); err == nil {
+			Opts.TranspBy = i
+		}
+	}
 	if len(Opts.Lang) == 0 &&
 		len(os.Getenv("FFCVT_LANG")) != 0 {
 		Opts.Lang = os.Getenv("FFCVT_LANG")
@@ -342,7 +351,7 @@ func initVals() {
 
 }
 
-const usageSummary = "  -cfg\tcfg file to define your own targets: webm/wx/youtube etc (FFCVT_CFG)\n  -t\ttarget type: webm/x265-opus/x264-mp3/wx/youtube/copy, or empty (FFCVT_T)\n  -ves\tvideo encoding method set (FFCVT_VES)\n  -aes\taudio encoding method set (FFCVT_AES)\n  -ses\tsubtitle encoding method set (FFCVT_SES)\n  -vep\tvideo encoding method prepend (FFCVT_VEP)\n  -aep\taudio encoding method prepend (FFCVT_AEP)\n  -sep\tsubtitle encoding method prepend (FFCVT_SEP)\n  -vea\tvideo encoding method append (FFCVT_VEA)\n  -aea\taudio encoding method append (FFCVT_AEA)\n  -abr\taudio bitrate (64k for opus, 256k for mp3) (FFCVT_ABR)\n  -crf\tthe CRF value: 0-51. Higher CRF gives lower quality\n\t (28 for x265, ~ 23 for x264) (FFCVT_CRF)\n\n  -d\tdirectory that hold input files (FFCVT_D)\n  -f\tinput file name (either -d or -f must be specified) (FFCVT_F)\n  -sym\tsymlinks will be processed as well (FFCVT_SYM)\n  -exts\textension list for all the files to be queued (FFCVT_EXTS)\n  -suf\tsuffix to the output file names (FFCVT_SUF)\n  -ext\textension for the output file (FFCVT_EXT)\n  -w\twork directory that hold output files (FFCVT_W)\n\n  -ac\tcopy audio codec (FFCVT_AC)\n  -vc\tcopy video codec (FFCVT_VC)\n  -an\tno audio, output video only (FFCVT_AN)\n  -vn\tno video, output audio only (FFCVT_VN)\n  -vss\tvideo: same size (FFCVT_VSS)\n  -C,Cut\tCut segment(s) out to keep. Specify in the form of start-[end],\n\tstrictly in the format of hh:mm:ss, and may repeat (FFCVT_C,CUT)\n  -S,Seg\tSplit video into multiple segments (strictly in format: hh:mm:ss) (FFCVT_S,SEG)\n  -Speed\tSpeed up/down video playback speed (e.g. 1.28) (FFCVT_SPEED)\n  -K,karaoke\tAdd a karaoke audio track to .mp4 MTV (FFCVT_K,KARAOKE)\n  -tkf\tTranspose song's key from (e.g. C/C#/Db/D etc) (FFCVT_TKF)\n  -tkt\tTranspose song's key to (e.g. -tkf C -tkt Db) (FFCVT_TKT)\n  -lang\tlanguage selection for audio stream extraction (FFCVT_LANG)\n  -sel\tsubtitle encoding language (language picked for reencoded video) (FFCVT_SEL)\n  -o\tmore options that will pass to ffmpeg program (FFCVT_O)\n  -ato-opus\taudio encode to opus, using -abr (FFCVT_ATO_OPUS)\n  -vto-x265\tvideo video encode to x265, using -crf (FFCVT_VTO_X265)\n\n  -p\tpar2create, create par2 files (in work directory) (FFCVT_P)\n  -nc\tno clobber, do not queue those already been converted (FFCVT_NC)\n  -bt\tbreath time, interval between conversion to take a breath (FFCVT_BT)\n  -maxc\tmax conversion done each run (default no limit) (FFCVT_MAXC)\n  -n\tno exec, dry run (FFCVT_N)\n\n  -force\toverwrite any existing none-empty file (FFCVT_FORCE)\n  -debug\tdebugging level (FFCVT_DEBUG)\n  -ffmpeg\tffmpeg program executable name (FFCVT_FFMPEG)\n  -ffprobe\tffprobe program execution (FFCVT_FFPROBE)\n  -version\tprint version then exit (FFCVT_VERSION)\n\nDetails:\n\n"
+const usageSummary = "  -cfg\tcfg file to define your own targets: webm/wx/youtube etc (FFCVT_CFG)\n  -t\ttarget type: webm/x265-opus/x264-mp3/wx/youtube/copy, or empty (FFCVT_T)\n  -ves\tvideo encoding method set (FFCVT_VES)\n  -aes\taudio encoding method set (FFCVT_AES)\n  -ses\tsubtitle encoding method set (FFCVT_SES)\n  -vep\tvideo encoding method prepend (FFCVT_VEP)\n  -aep\taudio encoding method prepend (FFCVT_AEP)\n  -sep\tsubtitle encoding method prepend (FFCVT_SEP)\n  -vea\tvideo encoding method append (FFCVT_VEA)\n  -aea\taudio encoding method append (FFCVT_AEA)\n  -abr\taudio bitrate (64k for opus, 256k for mp3) (FFCVT_ABR)\n  -crf\tthe CRF value: 0-51. Higher CRF gives lower quality\n\t (28 for x265, ~ 23 for x264) (FFCVT_CRF)\n\n  -d\tdirectory that hold input files (FFCVT_D)\n  -f\tinput file name (either -d or -f must be specified) (FFCVT_F)\n  -sym\tsymlinks will be processed as well (FFCVT_SYM)\n  -exts\textension list for all the files to be queued (FFCVT_EXTS)\n  -suf\tsuffix to the output file names (FFCVT_SUF)\n  -ext\textension for the output file (FFCVT_EXT)\n  -w\twork directory that hold output files (FFCVT_W)\n\n  -ac\tcopy audio codec (FFCVT_AC)\n  -vc\tcopy video codec (FFCVT_VC)\n  -an\tno audio, output video only (FFCVT_AN)\n  -vn\tno video, output audio only (FFCVT_VN)\n  -vss\tvideo: same size (FFCVT_VSS)\n  -C,Cut\tCut segment(s) out to keep. Specify in the form of start-[end],\n\tstrictly in the format of hh:mm:ss, and may repeat (FFCVT_C,CUT)\n  -S,Seg\tSplit video into multiple segments (strictly in format: hh:mm:ss) (FFCVT_S,SEG)\n  -Speed\tSpeed up/down video playback speed (e.g. 1.28) (FFCVT_SPEED)\n  -K,karaoke\tAdd a karaoke audio track to .mp4 MTV (FFCVT_K,KARAOKE)\n  -tkf\tTranspose song's key from (e.g. C/C#/Db/D etc) (FFCVT_TKF)\n  -tkt\tTranspose song's key to (e.g. -tkf C -tkt Db) (FFCVT_TKT)\n  -tkb\tTranspose song by (e.g. +2, -3, etc) chromatic scale (FFCVT_TKB)\n  -lang\tlanguage selection for audio stream extraction (FFCVT_LANG)\n  -sel\tsubtitle encoding language (language picked for reencoded video) (FFCVT_SEL)\n  -o\tmore options that will pass to ffmpeg program (FFCVT_O)\n  -ato-opus\taudio encode to opus, using -abr (FFCVT_ATO_OPUS)\n  -vto-x265\tvideo video encode to x265, using -crf (FFCVT_VTO_X265)\n\n  -p\tpar2create, create par2 files (in work directory) (FFCVT_P)\n  -nc\tno clobber, do not queue those already been converted (FFCVT_NC)\n  -bt\tbreath time, interval between conversion to take a breath (FFCVT_BT)\n  -maxc\tmax conversion done each run (default no limit) (FFCVT_MAXC)\n  -n\tno exec, dry run (FFCVT_N)\n\n  -force\toverwrite any existing none-empty file (FFCVT_FORCE)\n  -debug\tdebugging level (FFCVT_DEBUG)\n  -ffmpeg\tffmpeg program executable name (FFCVT_FFMPEG)\n  -ffprobe\tffprobe program execution (FFCVT_FFPROBE)\n  -version\tprint version then exit (FFCVT_VERSION)\n\nDetails:\n\n"
 
 // Usage function shows help on commandline usage
 func Usage() {
@@ -352,6 +361,8 @@ func Usage() {
 	fmt.Fprintf(os.Stderr, usageSummary)
 	flag.PrintDefaults()
 	fmt.Fprintf(os.Stderr,
-		"\nTo reduce output, use `-debug 0`, e.g., `ffcvt -force -debug 0 -f testf.mp4 ...`\n")
+		`
+To reduce output, use '-debug 0', e.g., 'ffcvt -force -debug 0 -f testf.mp4 ...'
+`)
 	os.Exit(0)
 }

ffcvt_cli.yaml

@@ -222,6 +222,12 @@ Options:
     Value: '""'
     Usage: "Transpose song's key to (e.g. -tkf C -tkt Db)"
 
+  - Name: TranspBy
+    Type: int
+    Flag: tkb
+    Value: 0
+    Usage: "Transpose song by (e.g. +2, -3, etc) chromatic scale"
+
   - Name: Lang
     Type: string
     Flag: lang
@@ -322,5 +328,6 @@ UsageSummary: "TRUE"
 
 UsageLead: "\\nUsage:\\n %s [flags] \\n\\nFlags:\\n\\n"
 
-UsageEnd: "\\nTo reduce output, use `-debug 0`, e.g., `ffcvt -force -debug 0 -f testf.mp4 ...`\\n"
+UsageEnd: |
 
+  To reduce output, use '-debug 0', e.g., 'ffcvt -force -debug 0 -f testf.mp4 ...'