diff --git a/bit_stream_filter_context.go b/bit_stream_filter_context.go
index 05ed993..fc19273 100644
--- a/bit_stream_filter_context.go
+++ b/bit_stream_filter_context.go
@@ -93,3 +93,8 @@ func (bsfc *BitStreamFilterContext) SetInputTimeBase(r Rational) {
 func (bsfc *BitStreamFilterContext) InputCodecParameters() *CodecParameters {
 	return newCodecParametersFromC(bsfc.c.par_in)
 }
+
+// https://ffmpeg.org/doxygen/7.0/structAVBSFContext.html#ab58f8c37eec197e0f30d17d60959a60d
+func (bsfc *BitStreamFilterContext) OutputCodecParameters() *CodecParameters {
+	return newCodecParametersFromC(bsfc.c.par_out)
+}
diff --git a/bit_stream_filter_context_test.go b/bit_stream_filter_context_test.go
index 2913841..da58bd2 100644
--- a/bit_stream_filter_context_test.go
+++ b/bit_stream_filter_context_test.go
@@ -29,7 +29,9 @@ func TestBitStreamFilterContext(t *testing.T) {
 	require.NoError(t, cp1.Copy(bsfc.InputCodecParameters()))
 	require.Equal(t, CodecIDH264, bsfc.InputCodecParameters().CodecID())
 
+	require.Equal(t, CodecIDNone, bsfc.OutputCodecParameters().CodecID())
 	require.NoError(t, bsfc.Initialize())
+	require.Equal(t, CodecIDH264, bsfc.OutputCodecParameters().CodecID())
 
 	// TODO Test SendPacket
 	// TODO Test ReceivePacket