Merge pull request #17 from suntong/fix/16

To split video into multiple segments, fixes #16

config.go

@@ -31,6 +31,7 @@ type Options struct {
 	VN         bool   // no video, output audio only
 	VSS        bool   // video: same size
 	Cut        mFlags // Cut segment(s) out to keep. Specify in the form of start-[end],\n\tstrictly in the format of hh:mm:ss, and may repeat
+	Seg        string // Split video into multiple segments (strictly in format: hh:mm:ss)
 	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
@@ -108,6 +109,12 @@ func init() {
 		"video: same size")
 	flag.Var(&Opts.Cut, "C",
 		"Cut segment(s) out to keep. Specify in the form of start-[end],\n\tstrictly in the format of hh:mm:ss, and may repeat")
+	flag.Var(&Opts.Cut, "Cut",
+		"Cut segment(s) out to keep. Specify in the form of start-[end],\n\tstrictly in the format of hh:mm:ss, and may repeat")
+	flag.StringVar(&Opts.Seg, "S", "",
+		"Split video into multiple segments (strictly in format: hh:mm:ss)")
+	flag.StringVar(&Opts.Seg, "Seg", "",
+		"Split video into multiple segments (strictly in format: hh:mm:ss)")
 	flag.StringVar(&Opts.Lang, "lang", "eng",
 		"language selection for audio stream extraction")
 	flag.Var(&Opts.SEL, "sel",
@@ -227,6 +234,14 @@ func init() {
 	if _, exists = os.LookupEnv("FFCVT_VSS"); Opts.VSS || exists {
 		Opts.VSS = true
 	}
+	if len(Opts.Seg) == 0 ||
+		len(os.Getenv("FFCVT_S")) != 0 {
+		Opts.Seg = os.Getenv("FFCVT_S")
+	}
+	if len(Opts.Seg) == 0 ||
+		len(os.Getenv("FFCVT_SEG")) != 0 {
+		Opts.Seg = os.Getenv("FFCVT_SEG")
+	}
 	if len(Opts.Lang) == 0 ||
 		len(os.Getenv("FFCVT_LANG")) != 0 {
 		Opts.Lang = os.Getenv("FFCVT_LANG")
@@ -269,7 +284,7 @@ func init() {
 
 }
 
-const usageSummary = "  -t\ttarget type: webm/x265-opus/x264-mp3/wx/youtube (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\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)\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  -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 = "  -t\ttarget type: webm/x265-opus/x264-mp3/wx/youtube (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  -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  -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() {

ffcvt.go

@@ -64,6 +64,15 @@ func main() {
 		os.Exit(0)
 	}
 
+	if len(Opts.Seg) > 0 {
+		// sanity check
+		_, err := time.Parse("15:04:05", Opts.Seg)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Seg format error: '%s'\n", Opts.Seg)
+			os.Exit(1)
+		}
+	}
+
 	if len(Opts.Cut) > 0 {
 		var b, vc strings.Builder
 		var ci int
@@ -264,7 +273,10 @@ func transcodeVideos(startTime time.Time) {
 
 func transcodeFile(inputName string) {
 	startTime := time.Now()
-	outputName := getOutputName(inputName)
+	outputName, outputGrpName := getOutputName(inputName), ""
+	if len(Opts.Seg) > 0 {
+		outputName, outputGrpName = getOutputNameSeg(inputName)
+	}
 	debug(outputName, 4)
 	os.MkdirAll(filepath.Dir(outputName), os.ModePerm)
 	var oldAEP, oldVEP, oldSEP string
@@ -319,6 +331,14 @@ func transcodeFile(inputName string) {
 	if Opts.Force {
 		args = append(args, "-y")
 	}
+	if len(Opts.Seg) > 0 {
+		args = append(args, "-f")
+		args = append(args, "segment")
+		args = append(args, "-segment_time")
+		args = append(args, Opts.Seg)
+		args = append(args, "-reset_timestamps")
+		args = append(args, "1")
+	}
 	if len(cutOps) != 0 {
 		args = append(args, "-filter_complex")
 		args = append(args, cutOps)
@@ -328,7 +348,11 @@ func transcodeFile(inputName string) {
 		args = append(args, "[ao]")
 	}
 	args = append(args, flag.Args()...)
-	args = append(args, outputName)
+	if len(Opts.Seg) > 0 {
+		args = append(args, outputGrpName)
+	} else {
+		args = append(args, outputName)
+	}
 	debug(Opts.FFMpeg+" "+strings.Join(args, " "), 1)
 
 	if Opts.NoExec {
@@ -529,6 +553,16 @@ func getOutputName(input string) string {
 	return r
 }
 
+// getOutputNameSeg will do getOutputName() but tailored toward video segmenting.
+// The first return will be the first video segment file name, 00_.mkv, while
+// the second return will be the segment group file name, %02d_.mkv
+func getOutputNameSeg(input string) (string, string) {
+	r := getOutputName(input)
+	fileFirst := strings.Replace(r, encodedExt, "00"+encodedExt, 1)
+	fileGroup := strings.Replace(r, encodedExt, "%02d"+encodedExt, 1)
+	return fileFirst, fileGroup
+}
+
 //==========================================================================
 // Support functions
 

ffcvt_cli.yaml

@@ -182,10 +182,16 @@ Options:
 
   - Name: Cut
     Type: mFlags
-    Flag: C
+    Flag: C,Cut
     Value: '""'
     Usage: "Cut segment(s) out to keep. Specify in the form of start-[end],\\n\\tstrictly in the format of hh:mm:ss, and may repeat"
 
+  - Name: Seg
+    Type: string
+    Flag: S,Seg
+    Value: '""'
+    Usage: "Split video into multiple segments (strictly in format: hh:mm:ss)"
+
   - Name: Lang
     Type: string
     Flag: lang