Another tweak to fix sprite generation

pkg/ffmpeg/regex.go

@@ -0,0 +1,34 @@
+package ffmpeg
+
+import (
+	"regexp"
+	"strconv"
+)
+
+var TimeRegex = regexp.MustCompile(`time=\s*(\d+):(\d+):(\d+.\d+)`)
+var FrameRegex = regexp.MustCompile(`frame=\s*([0-9]+)`)
+
+func GetTimeFromRegex(str string) float64 {
+	regexResult := TimeRegex.FindStringSubmatch(str)
+
+	// Bail early if we don't have the results we expect
+	if len(regexResult) != 4 { return 0 }
+
+	h, _ := strconv.ParseFloat(regexResult[1], 64)
+	m, _ := strconv.ParseFloat(regexResult[2], 64)
+	s, _ := strconv.ParseFloat(regexResult[3], 64)
+	hours := h * 3600
+	minutes := m * 60
+	seconds := s
+	return hours + minutes + seconds
+}
+
+func GetFrameFromRegex(str string) int {
+	regexResult := FrameRegex.FindStringSubmatch(str)
+
+	// Bail early if we don't have the results we expect
+	if len(regexResult) < 2 { return 0 }
+
+	result, _ := strconv.Atoi(regexResult[1])
+	return result
+}