fix: use container duration instead of per-video-stream

cmd/thumbnail-gen/main.go

@@ -6,7 +6,7 @@ import (
 	"os"
 	"path/filepath"
 
-	thumbnailgen "github.com/pablu23/thumbnail-gen"
+	thumbnailgen "git.pablu.de/pablu/thumbnail-gen"
 )
 
 var (

generator.go

@@ -65,7 +65,7 @@ func (opts *Options) GetThumbnail(path string) ([][]byte, int, error) {
 	if opts.UseSegments {
 		interval = int(length / float64(opts.Segments))
 	} else {
-    interval = opts.Interval
+		interval = opts.Interval
 	}
 
 	return GetThumbnailUnderlying(path, opts.MaxThumbnails, filters, length, interval, opts.EnableFilter, opts.Format, opts.Scale)
@@ -137,7 +137,7 @@ func GetImage(buf *bytes.Buffer, path string, timestamp int, format string, scal
 }
 
 func GetVideoLength(path string) (float64, error) {
-	cmd := exec.Command("ffprobe", "-v", "quiet", "-select_streams", "v:0", "-show_entries", "stream=duration", "-of", "default=noprint_wrappers=1:nokey=1", path)
+	cmd := exec.Command("ffprobe", "-v", "quiet", "-show_entries", "format=duration", "-of", "default=noprint_wrappers=1:nokey=1", path)
 	buf := bytes.NewBuffer(nil)
 	cmd.Stdout = buf
 	err := cmd.Run()
@@ -148,9 +148,23 @@ func GetVideoLength(path string) (float64, error) {
 	return strconv.ParseFloat(strings.ReplaceAll(buf.String(), "\n", ""), 64)
 }
 
+func escapeFilterValue(value string) string {
+	return strings.NewReplacer(
+		"\\", "\\\\",
+		"'", "\\'",
+		":", "\\:",
+		",", "\\,",
+		";", "\\;",
+		"[", "\\[",
+		"]", "\\]",
+	).Replace(value)
+}
+
 func GetFilter(path string) ([]TimeFilter, error) {
 	buf := bytes.NewBuffer(nil)
-	cmd := exec.Command("ffprobe", "-f", "lavfi", "-i", fmt.Sprintf("movie=%s,blackdetect[out0]", path), "-show_entries", "tags=lavfi.black_start,lavfi.black_end", "-of", "default=nw=1", "-v", "quiet")
+	filter := fmt.Sprintf("movie=filename='%s',blackdetect[out0]", escapeFilterValue(path))
+
+	cmd := exec.Command("ffprobe", "-f", "lavfi", "-i", filter, "-show_entries", "tags=lavfi.black_start,lavfi.black_end", "-of", "default=nw=1", "-v", "quiet")
 	cmd.Stdout = buf
 	err := cmd.Run()
 	// TODO: Replace with strings.Builder

go.mod

@@ -1,3 +1,3 @@
-module github.com/pablu23/thumbnail-gen
+module git.pablu.de/pablu/thumbnail-gen
 
 go 1.22.4

mise.toml

@@ -0,0 +1,8 @@
+[tools]
+go = "1.26.0"
+"go:golang.org/x/tools/gopls" = "latest"
+buf = "1.72.0"
+
+[tasks.generate]
+description = "Generate Go protobuf and gRPC bindings"
+run = "buf generate"