diff --git a/cmdutils.h b/cmdutils.h
index c2c3c466add542b89438fcaceff10a01367897dd..61bcfdc71f5b189051a725464e12a119f9615268 100644
--- a/cmdutils.h
+++ b/cmdutils.h
@@ -234,19 +234,19 @@ typedef struct {
 } PtsCorrectionContext;
 
 /**
- * Resets the state of the PtsCorrectionContext.
+ * Reset the state of the PtsCorrectionContext.
  */
 void init_pts_correction(PtsCorrectionContext *ctx);
 
 /**
- * Attempts to guess proper monotonic timestamps for decoded video frames
+ * Attempt to guess proper monotonic timestamps for decoded video frames
  * which might have incorrect times. Input timestamps may wrap around, in
  * which case the output will as well.
  *
- * @param pts The pts field of the decoded AVPacket, as passed through
+ * @param pts the pts field of the decoded AVPacket, as passed through
  * AVCodecContext.reordered_opaque
- * @param dts The dts field of the decoded AVPacket
- * @return One of the input values. May be AV_NOPTS_VALUE.
+ * @param dts the dts field of the decoded AVPacket
+ * @return one of the input values, may be AV_NOPTS_VALUE
  */
 int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t pts, int64_t dts);