fix crummy ffprobe json output handling

main.go

@@ -6,6 +6,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"log"
+	"math"
 	"net/http"
 	"os"
 	"path"
@@ -247,18 +248,21 @@ func main() {
 	// concatenate VOD segments into full VOD
 	fullVodExists := func () bool {
 		// check if full VOD already exists with expected duration
-		if fullVodProbe, err := scanner.ProbeSegment(video.Filename); err != nil {
-			var totalLength float64 = 0
-			for _, filename := range vodFiles {
-				probe, err := scanner.ProbeSegment(filename)
-				if err != nil { continue }
-				totalLength += probe.Format.Duration
-			}
-			return fullVodProbe.Format.Duration == totalLength
+		fullVodProbe, err := scanner.ProbeSegment(video.Filename)
+		if err != nil { return false }
+		video.SizeBytes = fullVodProbe.Format.Size
+		var totalLength float64 = 0
+
+		for _, filename := range vodFiles {
+			probe, err := scanner.ProbeSegment(path.Join(metadata.FootageDir, filename))
+			if err != nil { continue }
+			totalLength += probe.Format.Duration
 		}
-		return false
+		return math.Abs(fullVodProbe.Format.Duration - totalLength) < float64(0.1)
 	}()
-	if !fullVodExists {
+	if fullVodExists {
+		log.Print("Full VOD appears to already exist- uploading this file...")
+	} else {
 		video.SizeBytes, err = vid.ConcatVideo(video, vodFiles, verbose)
 		if err != nil {
 			log.Fatalf("Failed to concatenate VOD segments: %v", err)