feat: migrate serevices

backend_v1/pkg/utils/ffmpeg.go

@@ -0,0 +1,62 @@
+package utils
+
+import (
+	"strconv"
+	"strings"
+
+	"github.com/pkg/errors"
+)
+
+func GetMediaDuration(path string) (int64, error) {
+	args := []string{
+		"-v", "error",
+		"-show_entries", "format=duration",
+		"-of", "default=noprint_wrappers=1:nokey=1",
+		path,
+	}
+
+	output, err := ExecCommandOutput("ffprobe", args...)
+	if err != nil {
+		return 0, errors.Wrap(err, "ffprobe error")
+	}
+
+	duration := strings.TrimSpace(string(output))
+	durationFloat, err := strconv.ParseFloat(duration, 64)
+	if err != nil {
+		return 0, errors.Wrap(err, "duration conversion error")
+	}
+
+	return int64(durationFloat), nil
+}
+
+func CutMedia(input, output string, start, end int64) error {
+	args := []string{
+		"-y",
+		"-hide_banner",
+		"-nostats",
+		"-v", "error",
+		"-ss", strconv.FormatInt(start, 10),
+		"-i", input,
+		"-t", strconv.FormatInt(end, 10),
+		"-c", "copy",
+		output,
+	}
+
+	return ExecCommand("ffmpeg", args...)
+}
+
+// GetFrameImageFromVideo extracts target time frame from a video file and saves it as an image.
+func GetFrameImageFromVideo(input, output string, time int64) error {
+	args := []string{
+		"-y",
+		"-hide_banner",
+		"-nostats",
+		"-v", "error",
+		"-i", input,
+		"-ss", strconv.FormatInt(time, 10),
+		"-vframes", "1",
+		output,
+	}
+
+	return ExecCommand("ffmpeg", args...)
+}