feat: add durations

backend/modules/tasks/discover/discover_medias.go

@@ -16,6 +16,7 @@ import (
 	"github.com/google/uuid"
 	"github.com/pkg/errors"
 	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cast"
 )
 
 // @provider
@@ -268,3 +269,27 @@ func (d *DiscoverMedias) getPrice(dir string) (uint, error) {
 
 	return uint(p), nil
 }
+
+// getMediaDuration get the duration of a media file
+func (d *DiscoverMedias) getMediaDuration(file string) (float64, error) {
+	// ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 input_video.mp4
+	args := []string{
+		"-v", "error",
+		"-show_entries", "format=duration",
+		"-of", "default=noprint_wrappers=1:nokey=1",
+		file,
+	}
+
+	log.Infof("cmd: ffprobe %s", strings.Join(args, " "))
+	out, err := exec.Command("ffprobe", args...).CombinedOutput()
+	if err != nil {
+		return 0, errors.Wrapf(err, "get media duration: %s", file)
+	}
+
+	duration, err := cast.ToFloat64E(strings.TrimSpace(string(out)))
+	if err != nil {
+		return 0, errors.Wrapf(err, "get media duration: %s", file)
+	}
+
+	return duration, nil
+}

backend/modules/tasks/discover/discover_medias_test.go

@@ -74,3 +74,11 @@ func (t *DiscoverMediasTestSuite) Test_item() {
 		}
 	})
 }
+
+func (t *DiscoverMediasTestSuite) TestDiscoverMedias_getMediaDuration() {
+	Convey("TestDiscoverMedias_getMediaDuration", t.T(), func() {
+		duration, err := t.Svc.getMediaDuration("/projects/mp-qvyun/backend/fixtures/medias/video.mp4")
+		So(err, ShouldBeNil)
+		t.T().Logf("Duration: %0.8f", duration)
+	})
+}