--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libtremor/ogg.h Sun Apr 24 22:57:57 2011 +0200
@@ -0,0 +1,206 @@
+/********************************************************************
+ * *
+ * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE. *
+ * *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
+ * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
+ * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
+ * *
+ * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2003 *
+ * BY THE Xiph.Org FOUNDATION http://www.xiph.org/ *
+ * *
+ ********************************************************************
+
+ function: subsumed libogg includes
+
+ ********************************************************************/
+#ifndef _OGG_H
+#define _OGG_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "os_types.h"
+
+typedef struct ogg_buffer_state{
+ struct ogg_buffer *unused_buffers;
+ struct ogg_reference *unused_references;
+ int outstanding;
+ int shutdown;
+} ogg_buffer_state;
+
+typedef struct ogg_buffer {
+ unsigned char *data;
+ long size;
+ int refcount;
+
+ union {
+ ogg_buffer_state *owner;
+ struct ogg_buffer *next;
+ } ptr;
+} ogg_buffer;
+
+typedef struct ogg_reference {
+ ogg_buffer *buffer;
+ long begin;
+ long length;
+
+ struct ogg_reference *next;
+} ogg_reference;
+
+typedef struct oggpack_buffer {
+ int headbit;
+ unsigned char *headptr;
+ long headend;
+
+ /* memory management */
+ ogg_reference *head;
+ ogg_reference *tail;
+
+ /* render the byte/bit counter API constant time */
+ long count; /* doesn't count the tail */
+} oggpack_buffer;
+
+typedef struct oggbyte_buffer {
+ ogg_reference *baseref;
+
+ ogg_reference *ref;
+ unsigned char *ptr;
+ long pos;
+ long end;
+} oggbyte_buffer;
+
+typedef struct ogg_sync_state {
+ /* decode memory management pool */
+ ogg_buffer_state *bufferpool;
+
+ /* stream buffers */
+ ogg_reference *fifo_head;
+ ogg_reference *fifo_tail;
+ long fifo_fill;
+
+ /* stream sync management */
+ int unsynced;
+ int headerbytes;
+ int bodybytes;
+
+} ogg_sync_state;
+
+typedef struct ogg_stream_state {
+ ogg_reference *header_head;
+ ogg_reference *header_tail;
+ ogg_reference *body_head;
+ ogg_reference *body_tail;
+
+ int e_o_s; /* set when we have buffered the last
+ packet in the logical bitstream */
+ int b_o_s; /* set after we've written the initial page
+ of a logical bitstream */
+ long serialno;
+ long pageno;
+ ogg_int64_t packetno; /* sequence number for decode; the framing
+ knows where there's a hole in the data,
+ but we need coupling so that the codec
+ (which is in a seperate abstraction
+ layer) also knows about the gap */
+ ogg_int64_t granulepos;
+
+ int lacing_fill;
+ ogg_uint32_t body_fill;
+
+ /* decode-side state data */
+ int holeflag;
+ int spanflag;
+ int clearflag;
+ int laceptr;
+ ogg_uint32_t body_fill_next;
+
+} ogg_stream_state;
+
+typedef struct {
+ ogg_reference *packet;
+ long bytes;
+ long b_o_s;
+ long e_o_s;
+ ogg_int64_t granulepos;
+ ogg_int64_t packetno; /* sequence number for decode; the framing
+ knows where there's a hole in the data,
+ but we need coupling so that the codec
+ (which is in a seperate abstraction
+ layer) also knows about the gap */
+} ogg_packet;
+
+typedef struct {
+ ogg_reference *header;
+ int header_len;
+ ogg_reference *body;
+ long body_len;
+} ogg_page;
+
+/* Ogg BITSTREAM PRIMITIVES: bitstream ************************/
+
+extern void oggpack_readinit(oggpack_buffer *b,ogg_reference *r);
+extern long oggpack_look(oggpack_buffer *b,int bits);
+extern void oggpack_adv(oggpack_buffer *b,int bits);
+extern long oggpack_read(oggpack_buffer *b,int bits);
+extern long oggpack_bytes(oggpack_buffer *b);
+extern long oggpack_bits(oggpack_buffer *b);
+extern int oggpack_eop(oggpack_buffer *b);
+
+/* Ogg BITSTREAM PRIMITIVES: decoding **************************/
+
+extern ogg_sync_state *ogg_sync_create(void);
+extern int ogg_sync_destroy(ogg_sync_state *oy);
+extern int ogg_sync_reset(ogg_sync_state *oy);
+
+extern unsigned char *ogg_sync_bufferin(ogg_sync_state *oy, long size);
+extern int ogg_sync_wrote(ogg_sync_state *oy, long bytes);
+extern long ogg_sync_pageseek(ogg_sync_state *oy,ogg_page *og);
+extern int ogg_sync_pageout(ogg_sync_state *oy, ogg_page *og);
+extern int ogg_stream_pagein(ogg_stream_state *os, ogg_page *og);
+extern int ogg_stream_packetout(ogg_stream_state *os,ogg_packet *op);
+extern int ogg_stream_packetpeek(ogg_stream_state *os,ogg_packet *op);
+
+/* Ogg BITSTREAM PRIMITIVES: general ***************************/
+
+extern ogg_stream_state *ogg_stream_create(int serialno);
+extern int ogg_stream_destroy(ogg_stream_state *os);
+extern int ogg_stream_reset(ogg_stream_state *os);
+extern int ogg_stream_reset_serialno(ogg_stream_state *os,int serialno);
+extern int ogg_stream_eos(ogg_stream_state *os);
+
+extern int ogg_page_checksum_set(ogg_page *og);
+
+extern int ogg_page_version(ogg_page *og);
+extern int ogg_page_continued(ogg_page *og);
+extern int ogg_page_bos(ogg_page *og);
+extern int ogg_page_eos(ogg_page *og);
+extern ogg_int64_t ogg_page_granulepos(ogg_page *og);
+extern ogg_uint32_t ogg_page_serialno(ogg_page *og);
+extern ogg_uint32_t ogg_page_pageno(ogg_page *og);
+extern int ogg_page_packets(ogg_page *og);
+extern int ogg_page_getbuffer(ogg_page *og, unsigned char **buffer);
+
+extern int ogg_packet_release(ogg_packet *op);
+extern int ogg_page_release(ogg_page *og);
+
+extern void ogg_page_dup(ogg_page *d, ogg_page *s);
+
+/* Ogg BITSTREAM PRIMITIVES: return codes ***************************/
+
+#define OGG_SUCCESS 0
+
+#define OGG_HOLE -10
+#define OGG_SPAN -11
+#define OGG_EVERSION -12
+#define OGG_ESERIAL -13
+#define OGG_EINVAL -14
+#define OGG_EEOS -15
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _OGG_H */