struct timeval *vss_chunk_time(void);
const char *supported_audio_formats(void);
int vss_get_chunk(long unsigned chunk_num, char **buf, size_t *len);
struct timeval *vss_chunk_time(void);
const char *supported_audio_formats(void);
int vss_get_chunk(long unsigned chunk_num, char **buf, size_t *len);