Put root level of Tremor in CVS

git-svn-id: https://svn.xiph.org/trunk/Tremor@3890 0101bb08-14d6-0310-b084-bc0e0c8e3800

1 files changed, 128 insertions, 0 deletions

diff --git a/ivorbisfile.h b/ivorbisfile.h
new file mode 100644
index 0000000..124b5ea
--- /dev/null
+++ b/ivorbisfile.h
@@ -0,0 +1,128 @@
+/********************************************************************
+ *                                                                  *
+ * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE.   *
+ *                                                                  *
+ * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002    *
+ * BY THE Xiph.Org FOUNDATION http://www.xiph.org/                  *
+ * ALL REDISTRIBUTION RIGHTS RESERVED.                              *
+ *                                                                  *
+ ********************************************************************
+
+ function: stdio-based convenience library for opening/seeking/decoding
+
+ ********************************************************************/
+
+#ifndef _OV_FILE_H_
+#define _OV_FILE_H_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+#include <stdio.h>
+#include "ivorbiscodec.h"
+
+#define CHUNKSIZE 8192
+
+/* The function prototypes for the callbacks are basically the same as for
+ * the stdio functions fread, fseek, fclose, ftell. 
+ * The one difference is that the FILE * arguments have been replaced with
+ * a void * - this is to be used as a pointer to whatever internal data these
+ * functions might need. In the stdio case, it's just a FILE * cast to a void *
+ * 
+ * If you use other functions, check the docs for these functions and return
+ * the right values. For seek_func(), you *MUST* return -1 if the stream is
+ * unseekable
+ */
+typedef struct {
+  size_t (*read_func)  (void *ptr, size_t size, size_t nmemb, void *datasource);
+  int    (*seek_func)  (void *datasource, ogg_int64_t offset, int whence);
+  int    (*close_func) (void *datasource);
+  long   (*tell_func)  (void *datasource);
+} ov_callbacks;
+
+#define  NOTOPEN   0
+#define  PARTOPEN  1
+#define  OPENED    2
+#define  STREAMSET 3
+#define  INITSET   4
+
+typedef struct OggVorbis_File {
+  void            *datasource; /* Pointer to a FILE *, etc. */
+  int              seekable;
+  ogg_int64_t      offset;
+  ogg_int64_t      end;
+  ogg_sync_state   oy; 
+
+  /* If the FILE handle isn't seekable (eg, a pipe), only the current
+     stream appears */
+  int              links;
+  ogg_int64_t     *offsets;
+  ogg_int64_t     *dataoffsets;
+  long            *serialnos;
+  ogg_int64_t     *pcmlengths;
+  vorbis_info     *vi;
+  vorbis_comment  *vc;
+
+  /* Decoding working state local storage */
+  ogg_int64_t      pcm_offset;
+  int              ready_state;
+  long             current_serialno;
+  int              current_link;
+
+  ogg_int64_t      bittrack;
+  ogg_int64_t      samptrack;
+
+  ogg_stream_state os; /* take physical pages, weld into a logical
+                          stream of packets */
+  vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */
+  vorbis_block     vb; /* local working space for packet->PCM decode */
+
+  ov_callbacks callbacks;
+
+} OggVorbis_File;
+
+extern int ov_clear(OggVorbis_File *vf);
+extern int ov_open(FILE *f,OggVorbis_File *vf,char *initial,long ibytes);
+extern int ov_open_callbacks(void *datasource, OggVorbis_File *vf,
+		char *initial, long ibytes, ov_callbacks callbacks);
+
+extern int ov_test(FILE *f,OggVorbis_File *vf,char *initial,long ibytes);
+extern int ov_test_callbacks(void *datasource, OggVorbis_File *vf,
+		char *initial, long ibytes, ov_callbacks callbacks);
+extern int ov_test_open(OggVorbis_File *vf);
+
+extern long ov_bitrate(OggVorbis_File *vf,int i);
+extern long ov_bitrate_instant(OggVorbis_File *vf);
+extern long ov_streams(OggVorbis_File *vf);
+extern long ov_seekable(OggVorbis_File *vf);
+extern long ov_serialnumber(OggVorbis_File *vf,int i);
+
+extern ogg_int64_t ov_raw_total(OggVorbis_File *vf,int i);
+extern ogg_int64_t ov_pcm_total(OggVorbis_File *vf,int i);
+extern ogg_int64_t ov_time_total(OggVorbis_File *vf,int i);
+
+extern int ov_raw_seek(OggVorbis_File *vf,long pos);
+extern int ov_pcm_seek(OggVorbis_File *vf,ogg_int64_t pos);
+extern int ov_pcm_seek_page(OggVorbis_File *vf,ogg_int64_t pos);
+extern int ov_time_seek(OggVorbis_File *vf,ogg_int64_t pos);
+extern int ov_time_seek_page(OggVorbis_File *vf,ogg_int64_t pos);
+
+extern ogg_int64_t ov_raw_tell(OggVorbis_File *vf);
+extern ogg_int64_t ov_pcm_tell(OggVorbis_File *vf);
+extern ogg_int64_t ov_time_tell(OggVorbis_File *vf);
+
+extern vorbis_info *ov_info(OggVorbis_File *vf,int link);
+extern vorbis_comment *ov_comment(OggVorbis_File *vf,int link);
+
+extern long ov_read(OggVorbis_File *vf,char *buffer,int length,
+		    int *bitstream);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif
+
+