diff --git a/pkg/media/ivfreader/ivfreader.go b/pkg/media/ivfreader/ivfreader.go
index 1006fef902c..04a5df1bfe0 100644
--- a/pkg/media/ivfreader/ivfreader.go
+++ b/pkg/media/ivfreader/ivfreader.go
@@ -52,7 +52,8 @@ type IVFFrameHeader struct {
 type IVFReader struct {
 	stream               io.Reader
 	bytesReadSuccesfully int64
-	fileHeader           *IVFFileHeader
+	timebaseDenominator  uint32
+	timebaseNumerator    uint32
 }
 
 // NewWith returns a new IVF reader and IVF file header
@@ -70,7 +71,8 @@ func NewWith(in io.Reader) (*IVFReader, *IVFFileHeader, error) {
 	if err != nil {
 		return nil, nil, err
 	}
-	reader.fileHeader = header
+	reader.timebaseDenominator = header.TimebaseDenominator
+	reader.timebaseNumerator = header.TimebaseNumerator
 
 	return reader, header, nil
 }
@@ -83,7 +85,7 @@ func (i *IVFReader) ResetReader(reset func(bytesRead int64) io.Reader) {
 }
 
 func (i *IVFReader) ptsToTimestamp(pts uint64) uint64 {
-	return pts * uint64(i.fileHeader.TimebaseDenominator) / uint64(i.fileHeader.TimebaseNumerator)
+	return pts * uint64(i.timebaseDenominator) / uint64(i.timebaseNumerator)
 }
 
 // ParseNextFrame reads from stream and returns IVF frame payload, header,
diff --git a/pkg/media/ivfwriter/ivfwriter.go b/pkg/media/ivfwriter/ivfwriter.go
index 4f482b99dc8..bf1a357d333 100644
--- a/pkg/media/ivfwriter/ivfwriter.go
+++ b/pkg/media/ivfwriter/ivfwriter.go
@@ -123,8 +123,8 @@ func (i *IVFWriter) timestampToPts(timestamp uint64) uint64 {
 
 func (i *IVFWriter) writeFrame(frame []byte, timestamp uint64) error {
 	frameHeader := make([]byte, 12)
-	binary.LittleEndian.PutUint32(frameHeader[0:], uint32(len(frame))) // Frame length
-	binary.LittleEndian.PutUint64(frameHeader[4:], i.timestampToPts(timestamp))
+	binary.LittleEndian.PutUint32(frameHeader[0:], uint32(len(frame)))          // Frame length
+	binary.LittleEndian.PutUint64(frameHeader[4:], i.timestampToPts(timestamp)) // PTS
 	i.count++
 
 	if _, err := i.ioWriter.Write(frameHeader); err != nil {