fix: fixes

m3u8/reader.go

@@ -687,7 +687,7 @@ func parsePreloadHint(parameters string) (*PreloadHint, error) {
 		case "BYTERANGE-LENGTH":
 			length, err := strconv.ParseInt(attr.Val, 10, 64)
 			if err != nil {
-				return nil, fmt.Errorf("start parsing error: %w", err)
+				return nil, fmt.Errorf("length parsing error: %w", err)
 			}
 			ph.Limit = length
 		}

m3u8/reader_test.go

@@ -877,7 +877,7 @@ func TestDecodeLowLatencyMediaPlaylist(t *testing.T) {
 	is.True(!pp.Closed) // live playlist
 	is.Equal(pp.SeqNo, uint64(244))
 	is.Equal(pp.Count(), uint(6))
-	is.Equal(pp.PartTargetDuration, float32(1.002000))
+	is.Equal(pp.PartTargetDuration, 1.002)
 
 	// segment names should be in the following format fileSequence%d.m4s
 	// starting from fileSequence235.m4s
@@ -900,15 +900,17 @@ func TestDecodeLowLatencyMediaPlaylist(t *testing.T) {
 
 	is.Equal(len(pp.PartialSegments), int(10)) // partial segment count must be 10
 
-	for _, ps := range pp.PartialSegments {
+	for i, ps := range pp.PartialSegments {
 		// The partial segments should have a duration of 1 second
 		is.Equal(ps.Duration, float64(1.0))
-		is.True(ps.Independent)
+		if i < 8 {
+			is.True(ps.Independent)
+		}
 		// partial segment names should be in the following format filePart%d.%d.m4s
 		is.True(strings.HasPrefix(ps.URI, "filePart"))
 	}
 
-	// The ProgramDateTime of the 8st partial segment should be: 2025-02-10T14:43:30.134Z
+	// The ProgramDateTime of the 9th partial segment should be: 2025-02-10T14:43:30.134Z
 	st, _ = time.Parse(time.RFC3339, "2025-02-10T14:43:30.134+00:00")
 	if !pp.PartialSegments[8].ProgramDateTime.Equal(st) {
 		t.Errorf("The program date time of the 8st partial segment should be: %v, actual value: %v",

m3u8/sample-playlists/media-playlist-low-latency.m3u8

@@ -26,6 +26,6 @@ fileSequence249.m4s
 #EXTINF:4.000,
 fileSequence250.m4s
 #EXT-X-PROGRAM-DATE-TIME:2025-02-10T14:43:30.134Z
-#EXT-X-PART:DURATION=1.000,INDEPENDENT=YES,URI="filePart251.1.m4s"
-#EXT-X-PART:DURATION=1.000,INDEPENDENT=YES,URI="filePart251.2.m4s"
+#EXT-X-PART:DURATION=1.000,URI="filePart251.1.m4s"
+#EXT-X-PART:DURATION=1.000,URI="filePart251.2.m4s"
 #EXT-X-PRELOAD-HINT:TYPE=PART,URI="filePart251.3.m4s"

m3u8/structure.go

@@ -141,7 +141,7 @@ type MediaPlaylist struct {
 	ver                 uint8             // protocol version of the playlist, 3 or higher
 	targetDurLocked     bool              // target duration is locked and cannot be changed
 	independentSegments bool              // Global tag for EXT-X-INDEPENDENT-SEGMENTS
-	PartTargetDuration  float32           // EXT-X-PART-INF:PART-TARGET
+	PartTargetDuration  float64           // EXT-X-PART-INF:PART-TARGET
 	PartialSegments     []*PartialSegment // List of partial segments in the playlist.
 	PreloadHints        *PreloadHint      // EXT-X-PRELOAD-HINT tags
 }

m3u8/writer.go

@@ -760,7 +760,7 @@ func (p *MediaPlaylist) Encode() *bytes.Buffer {
 	}
 	if p.PartTargetDuration > 0 {
 		p.buf.WriteString("#EXT-X-PART-INF:PART-TARGET=")
-		p.buf.WriteString(strconv.FormatFloat(float64(p.PartTargetDuration), 'f', 3, 64))
+		p.buf.WriteString(strconv.FormatFloat(p.PartTargetDuration, 'f', 3, 64))
 		p.buf.WriteRune('\n')
 	}
 	p.buf.WriteString("#EXT-X-MEDIA-SEQUENCE:")