diff --git a/libavcodec/escape124.c b/libavcodec/escape124.c
index ddb4fa47d9072ab6bc884a18194a2afeeb862158..b51206a0b52ad0eb58f296c06ceb3a6fd711e687 100644
--- a/libavcodec/escape124.c
+++ b/libavcodec/escape124.c
@@ -200,6 +200,8 @@ static const uint16_t mask_matrix[] = {0x1,   0x2,   0x10,   0x20,
  * @param avctx decoder context
  * @param data decoded frame
  * @param data_size size of the decoded frame
+ * @param buf input buffer
+ * @param buf_size input buffer size
  * @return 0 success, -1 on error
  */
 static int escape124_decode_frame(AVCodecContext *avctx,
diff --git a/libavcodec/fraps.c b/libavcodec/fraps.c
index b66dc6c343acd3a16698a145bcec38bf28274c91..0829ac7e74eafc49e82bb26ba40e60bf20622648 100644
--- a/libavcodec/fraps.c
+++ b/libavcodec/fraps.c
@@ -123,6 +123,8 @@ static int fraps2_decode_plane(FrapsContext *s, uint8_t *dst, int stride, int w,
  * @param avctx codec context
  * @param data output AVFrame
  * @param data_size size of output data or 0 if no picture is returned
+ * @param buf input data frame
+ * @param buf_size size of input data frame
  * @return number of consumed bytes on success or negative if decode fails
  */
 static int decode_frame(AVCodecContext *avctx,
diff --git a/libavcodec/rl2.c b/libavcodec/rl2.c
index 6f936041085e0d181487e1cba26af81f5f936efb..1174c35d5180d511f46c9ac6f92c264c7c665c54 100644
--- a/libavcodec/rl2.c
+++ b/libavcodec/rl2.c
@@ -174,6 +174,8 @@ static av_cold int rl2_decode_init(AVCodecContext *avctx)
  * @param avctx decoder context
  * @param data decoded frame
  * @param data_size size of the decoded frame
+ * @param buf input buffer
+ * @param buf_size input buffer size
  * @return 0 success, -1 on error
  */
 static int rl2_decode_frame(AVCodecContext *avctx,