Use same variable name in function declaration as in function
definition and gtk-doc/g-i blurb.
GType gst_rtp_source_meta_api_get_type (void);
GST_RTP_API
-GstRTPSourceMeta * gst_buffer_add_rtp_source_meta (GstBuffer * buf, const guint32 * ssrc,
+GstRTPSourceMeta * gst_buffer_add_rtp_source_meta (GstBuffer * buffer, const guint32 * ssrc,
const guint32 * csrc, guint csrc_count);
GST_RTP_API
-GstRTPSourceMeta * gst_buffer_get_rtp_source_meta (GstBuffer * buf);
+GstRTPSourceMeta * gst_buffer_get_rtp_source_meta (GstBuffer * buffer);
GST_RTP_API
guint gst_rtp_source_meta_get_source_count (const GstRTPSourceMeta * meta);