/* This program is licensed under the GNU Library General Public License, version 2,
 * a copy of which is included with this program (with filename LICENSE.LGPL).
 *
 * (c) 2000-2001 Michael Smith <msmith@xiph.org>
 * (c) 2020      Philipp Schafft <lion@lion.leolix.org>
 *
 * VCEdit header.
 *
 * last modified: $ID:$
 */

#ifndef __VCEDIT_H
#define __VCEDIT_H

#ifdef __cplusplus
extern "C" {
#endif

#include <stdio.h>
#include <ogg/ogg.h>
#include <vorbis/codec.h>

typedef size_t (*vcedit_read_func)(void *, size_t, size_t, void *);
typedef size_t (*vcedit_write_func)(const void *, size_t, size_t, void *);

typedef struct {
    long *streams;
    size_t streams_len;
} vcedit_serial_nos;

typedef struct {
    ogg_sync_state      *oy;
    ogg_stream_state    *os;

    vorbis_comment      *vc;
    vorbis_info         *vi;

    vcedit_read_func    read;
    vcedit_write_func   write;

    void                *in;
    int serial;
    vcedit_serial_nos   serials;
    unsigned char       *mainbuf;
    unsigned char       *bookbuf;
    int                 mainlen;
    int                 booklen;
    char                *lasterror;
    char                *vendor;
    int                 prevW;
    int                 extrapage;
    int                 eosin;
    struct vcedit_buffer_chain *sidebuf;
} vcedit_state;

extern vcedit_state *   vcedit_new_state(void);
extern void             vcedit_clear(vcedit_state *state);
extern vorbis_comment * vcedit_comments(vcedit_state *state);
extern int              vcedit_open(vcedit_state *state, FILE *in);
extern int              vcedit_open_callbacks(vcedit_state *state, void *in,
                                              vcedit_read_func read_func, vcedit_write_func write_func);
extern int              vcedit_write(vcedit_state *state, void *out);
extern const char *     vcedit_error(vcedit_state *state);

#ifdef __cplusplus
}
#endif

#endif /* __VCEDIT_H */

