diff --git a/class_test.go b/class_test.go
index d462407..58debed 100644
--- a/class_test.go
+++ b/class_test.go
@@ -48,7 +48,7 @@ func TestClassers(t *testing.T) {
 	fmc2 := AllocFormatContext()
 	require.NoError(t, fmc2.OpenInput("testdata/video.mp4", nil, nil))
 	path := filepath.Join(t.TempDir(), "iocontext.txt")
-	ic1, err := OpenIOContext(path, NewIOContextFlags(IOContextFlagWrite))
+	ic1, err := OpenIOContext(path, NewIOContextFlags(IOContextFlagWrite), nil)
 	require.NoError(t, err)
 	defer os.RemoveAll(path)
 	ic2, err := AllocIOContext(1, true, nil, nil, nil)
diff --git a/examples/remuxing/main.go b/examples/remuxing/main.go
index 9ea9713..f799707 100644
--- a/examples/remuxing/main.go
+++ b/examples/remuxing/main.go
@@ -103,7 +103,7 @@ func main() {
 	// If this is a file, we need to use an io context
 	if !outputFormatContext.OutputFormat().Flags().Has(astiav.IOFormatFlagNofile) {
 		// Open io context
-		ioContext, err := astiav.OpenIOContext(*output, astiav.NewIOContextFlags(astiav.IOContextFlagWrite))
+		ioContext, err := astiav.OpenIOContext(*output, astiav.NewIOContextFlags(astiav.IOContextFlagWrite), nil)
 		if err != nil {
 			log.Fatal(fmt.Errorf("main: opening io context failed: %w", err))
 		}
diff --git a/examples/transcoding/main.go b/examples/transcoding/main.go
index 3bf897d..0fea684 100644
--- a/examples/transcoding/main.go
+++ b/examples/transcoding/main.go
@@ -334,7 +334,7 @@ func openOutputFile() (err error) {
 	if !outputFormatContext.OutputFormat().Flags().Has(astiav.IOFormatFlagNofile) {
 		// Open io context
 		var ioContext *astiav.IOContext
-		if ioContext, err = astiav.OpenIOContext(*output, astiav.NewIOContextFlags(astiav.IOContextFlagWrite)); err != nil {
+		if ioContext, err = astiav.OpenIOContext(*output, astiav.NewIOContextFlags(astiav.IOContextFlagWrite), nil); err != nil {
 			err = fmt.Errorf("main: opening io context failed: %w", err)
 			return
 		}
diff --git a/format_context_test.go b/format_context_test.go
index f65f680..9f8ce6a 100644
--- a/format_context_test.go
+++ b/format_context_test.go
@@ -61,7 +61,7 @@ func TestFormatContext(t *testing.T) {
 	fc3 := AllocFormatContext()
 	require.NotNil(t, fc3)
 	defer fc3.Free()
-	io, err := OpenIOContext("testdata/video.mp4", NewIOContextFlags(IOContextFlagRead))
+	io, err := OpenIOContext("testdata/video.mp4", NewIOContextFlags(IOContextFlagRead), nil)
 	require.NoError(t, err)
 	defer io.Close() //nolint:errcheck
 	fc3.SetPb(io)
@@ -130,7 +130,7 @@ func TestFormatContext(t *testing.T) {
 		require.NotNil(t, os)
 		require.NoError(t, is.CodecParameters().Copy(os.CodecParameters()))
 	}
-	ic, err := OpenIOContext(outputPath, NewIOContextFlags(IOContextFlagWrite))
+	ic, err := OpenIOContext(outputPath, NewIOContextFlags(IOContextFlagWrite), nil)
 	require.NoError(t, err)
 	fc7.SetPb(ic)
 	require.NoError(t, fc7.WriteHeader(nil))