--- /dev/null
+#ifndef BAM_SAMPLE_H
+#define BAM_SAMPLE_H
+
+#include "kstring.h"
+
+typedef struct {
+ int n, m;
+ char **smpl;
+ void *rg2smid;
+} bam_sample_t;
+
+bam_sample_t *bam_smpl_init(void);
+int bam_smpl_add(bam_sample_t *sm, const char *abs, const char *txt);
+int bam_smpl_rg2smid(const bam_sample_t *sm, const char *fn, const char *rg, kstring_t *str);
+void bam_smpl_destroy(bam_sample_t *sm);
+
+#endif