diff --git a/avcodec_codec_par.go b/avcodec_codec_par.go
index e2ad9d2..a4c0acc 100644
--- a/avcodec_codec_par.go
+++ b/avcodec_codec_par.go
@@ -460,7 +460,7 @@ func (par *AVCodecParameters) GetSeekPrerollAddr() *int32 {
 	return (*int32)(&par.seek_preroll)
 }
 
-// GetChLayout gets `AVCodecContext.ch_layouts` value.
+// GetChLayout gets `AVCodecContext.ch_layout` value.
 func (par *AVCodecParameters) GetChLayout() AVChannelLayout {
 	return (AVChannelLayout)(par.ch_layout)
 }
@@ -470,7 +470,7 @@ func (par *AVCodecParameters) SetChLayout(v AVChannelLayout) {
 	par.ch_layout = (C.struct_AVChannelLayout)(v)
 }
 
-// GetChLayoutAddr gets `AVCodecContext.ch_layouts` address.
+// GetChLayoutAddr gets `AVCodecContext.ch_layout` address.
 func (par *AVCodecParameters) GetChLayoutAddr() *AVChannelLayout {
 	return (*AVChannelLayout)(&par.ch_layout)
 }
diff --git a/avutil_hdr_dynamic_vivid_metadata.go b/avutil_hdr_dynamic_vivid_metadata.go
index 0f0fee7..7dcc78d 100644
--- a/avutil_hdr_dynamic_vivid_metadata.go
+++ b/avutil_hdr_dynamic_vivid_metadata.go
@@ -525,6 +525,7 @@ func AvDynamicHdrVividAlloc(size *uintptr) *AVDynamicHDRVivid {
 	return (*AVDynamicHDRVivid)(C.av_dynamic_hdr_vivid_alloc((*C.size_t)(unsafe.Pointer(size))))
 }
 
+// AvDynamicHdrVividCreateSideData allocates a complete AVDynamicHDRVivid and add it to the frame.
 func AvDynamicHdrVividCreateSideData(frame *AVFrame) *AVDynamicHDRVivid {
 	return (*AVDynamicHDRVivid)(C.av_dynamic_hdr_vivid_create_side_data((*C.struct_AVFrame)(frame)))
 }