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-rw-r--r--oggamp~/codec.h466
1 files changed, 233 insertions, 233 deletions
diff --git a/oggamp~/codec.h b/oggamp~/codec.h
index d986a9b..964a067 100644
--- a/oggamp~/codec.h
+++ b/oggamp~/codec.h
@@ -1,233 +1,233 @@
-/********************************************************************
- * *
- * THIS FILE IS PART OF THE OggVorbis SOFTWARE 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 SOURCE CODE IS (C) COPYRIGHT 1994-2001 *
- * by the XIPHOPHORUS Company http://www.xiph.org/ *
-
- ********************************************************************
-
- function: libvorbis codec headers
- last mod: $Id: codec.h,v 1.2 2003-04-23 10:36:25 xovo Exp $
-
- ********************************************************************/
-
-#ifndef _vorbis_codec_h_
-#define _vorbis_codec_h_
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif /* __cplusplus */
-
-#include <ogg/ogg.h>
-
-typedef struct vorbis_info{
- int version;
- int channels;
- long rate;
-
- /* The below bitrate declarations are *hints*.
- Combinations of the three values carry the following implications:
-
- all three set to the same value:
- implies a fixed rate bitstream
- only nominal set:
- implies a VBR stream that averages the nominal bitrate. No hard
- upper/lower limit
- upper and or lower set:
- implies a VBR bitstream that obeys the bitrate limits. nominal
- may also be set to give a nominal rate.
- none set:
- the coder does not care to speculate.
- */
-
- long bitrate_upper;
- long bitrate_nominal;
- long bitrate_lower;
- long bitrate_window;
-
- void *codec_setup;
-} vorbis_info;
-
-/* vorbis_dsp_state buffers the current vorbis audio
- analysis/synthesis state. The DSP state belongs to a specific
- logical bitstream ****************************************************/
-typedef struct vorbis_dsp_state{
- int analysisp;
- vorbis_info *vi;
-
- float **pcm;
- float **pcmret;
- int pcm_storage;
- int pcm_current;
- int pcm_returned;
-
- int preextrapolate;
- int eofflag;
-
- long lW;
- long W;
- long nW;
- long centerW;
-
- ogg_int64_t granulepos;
- ogg_int64_t sequence;
-
- ogg_int64_t glue_bits;
- ogg_int64_t time_bits;
- ogg_int64_t floor_bits;
- ogg_int64_t res_bits;
-
- void *backend_state;
-} vorbis_dsp_state;
-
-typedef struct vorbis_block{
- /* necessary stream state for linking to the framing abstraction */
- float **pcm; /* this is a pointer into local storage */
- oggpack_buffer opb;
-
- long lW;
- long W;
- long nW;
- int pcmend;
- int mode;
-
- int eofflag;
- ogg_int64_t granulepos;
- ogg_int64_t sequence;
- vorbis_dsp_state *vd; /* For read-only access of configuration */
-
- /* local storage to avoid remallocing; it's up to the mapping to
- structure it */
- void *localstore;
- long localtop;
- long localalloc;
- long totaluse;
- struct alloc_chain *reap;
-
- /* bitmetrics for the frame */
- long glue_bits;
- long time_bits;
- long floor_bits;
- long res_bits;
-
- void *internal;
-
-} vorbis_block;
-
-/* vorbis_block is a single block of data to be processed as part of
-the analysis/synthesis stream; it belongs to a specific logical
-bitstream, but is independant from other vorbis_blocks belonging to
-that logical bitstream. *************************************************/
-
-struct alloc_chain{
- void *ptr;
- struct alloc_chain *next;
-};
-
-/* vorbis_info contains all the setup information specific to the
- specific compression/decompression mode in progress (eg,
- psychoacoustic settings, channel setup, options, codebook
- etc). vorbis_info and substructures are in backends.h.
-*********************************************************************/
-
-/* the comments are not part of vorbis_info so that vorbis_info can be
- static storage */
-typedef struct vorbis_comment{
- /* unlimited user comment fields. libvorbis writes 'libvorbis'
- whatever vendor is set to in encode */
- char **user_comments;
- int *comment_lengths;
- int comments;
- char *vendor;
-
-} vorbis_comment;
-
-
-/* libvorbis encodes in two abstraction layers; first we perform DSP
- and produce a packet (see docs/analysis.txt). The packet is then
- coded into a framed OggSquish bitstream by the second layer (see
- docs/framing.txt). Decode is the reverse process; we sync/frame
- the bitstream and extract individual packets, then decode the
- packet back into PCM audio.
-
- The extra framing/packetizing is used in streaming formats, such as
- files. Over the net (such as with UDP), the framing and
- packetization aren't necessary as they're provided by the transport
- and the streaming layer is not used */
-
-/* Vorbis PRIMITIVES: general ***************************************/
-
-extern void vorbis_info_init(vorbis_info *vi);
-extern void vorbis_info_clear(vorbis_info *vi);
-extern int vorbis_info_blocksize(vorbis_info *vi,int zo);
-extern void vorbis_comment_init(vorbis_comment *vc);
-extern void vorbis_comment_add(vorbis_comment *vc, char *comment);
-extern void vorbis_comment_add_tag(vorbis_comment *vc,
- char *tag, char *contents);
-extern char *vorbis_comment_query(vorbis_comment *vc, char *tag, int count);
-extern int vorbis_comment_query_count(vorbis_comment *vc, char *tag);
-extern void vorbis_comment_clear(vorbis_comment *vc);
-
-extern int vorbis_block_init(vorbis_dsp_state *v, vorbis_block *vb);
-extern int vorbis_block_clear(vorbis_block *vb);
-extern void vorbis_dsp_clear(vorbis_dsp_state *v);
-
-/* Vorbis PRIMITIVES: analysis/DSP layer ****************************/
-
-extern int vorbis_analysis_init(vorbis_dsp_state *v,vorbis_info *vi);
-extern int vorbis_commentheader_out(vorbis_comment *vc, ogg_packet *op);
-extern int vorbis_analysis_headerout(vorbis_dsp_state *v,
- vorbis_comment *vc,
- ogg_packet *op,
- ogg_packet *op_comm,
- ogg_packet *op_code);
-extern float **vorbis_analysis_buffer(vorbis_dsp_state *v,int vals);
-extern int vorbis_analysis_wrote(vorbis_dsp_state *v,int vals);
-extern int vorbis_analysis_blockout(vorbis_dsp_state *v,vorbis_block *vb);
-extern int vorbis_analysis(vorbis_block *vb,ogg_packet *op);
-
-extern int vorbis_bitrate_addblock(vorbis_block *vb);
-extern int vorbis_bitrate_flushpacket(vorbis_dsp_state *vd,
- ogg_packet *op);
-
-/* Vorbis PRIMITIVES: synthesis layer *******************************/
-extern int vorbis_synthesis_headerin(vorbis_info *vi,vorbis_comment *vc,
- ogg_packet *op);
-
-extern int vorbis_synthesis_init(vorbis_dsp_state *v,vorbis_info *vi);
-extern int vorbis_synthesis(vorbis_block *vb,ogg_packet *op);
-extern int vorbis_synthesis_trackonly(vorbis_block *vb,ogg_packet *op);
-extern int vorbis_synthesis_blockin(vorbis_dsp_state *v,vorbis_block *vb);
-extern int vorbis_synthesis_pcmout(vorbis_dsp_state *v,float ***pcm);
-extern int vorbis_synthesis_read(vorbis_dsp_state *v,int samples);
-extern long vorbis_packet_blocksize(vorbis_info *vi,ogg_packet *op);
-
-/* Vorbis ERRORS and return codes ***********************************/
-
-#define OV_FALSE -1
-#define OV_EOF -2
-#define OV_HOLE -3
-
-#define OV_EREAD -128
-#define OV_EFAULT -129
-#define OV_EIMPL -130
-#define OV_EINVAL -131
-#define OV_ENOTVORBIS -132
-#define OV_EBADHEADER -133
-#define OV_EVERSION -134
-#define OV_ENOTAUDIO -135
-#define OV_EBADPACKET -136
-#define OV_EBADLINK -137
-#define OV_ENOSEEK -138
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif
-
+/********************************************************************
+ * *
+ * THIS FILE IS PART OF THE OggVorbis SOFTWARE 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 SOURCE CODE IS (C) COPYRIGHT 1994-2001 *
+ * by the XIPHOPHORUS Company http://www.xiph.org/ *
+
+ ********************************************************************
+
+ function: libvorbis codec headers
+ last mod: $Id: codec.h,v 1.3 2004-01-04 12:16:07 x75 Exp $
+
+ ********************************************************************/
+
+#ifndef _vorbis_codec_h_
+#define _vorbis_codec_h_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+#include <ogg/ogg.h>
+
+typedef struct vorbis_info{
+ int version;
+ int channels;
+ long rate;
+
+ /* The below bitrate declarations are *hints*.
+ Combinations of the three values carry the following implications:
+
+ all three set to the same value:
+ implies a fixed rate bitstream
+ only nominal set:
+ implies a VBR stream that averages the nominal bitrate. No hard
+ upper/lower limit
+ upper and or lower set:
+ implies a VBR bitstream that obeys the bitrate limits. nominal
+ may also be set to give a nominal rate.
+ none set:
+ the coder does not care to speculate.
+ */
+
+ long bitrate_upper;
+ long bitrate_nominal;
+ long bitrate_lower;
+ long bitrate_window;
+
+ void *codec_setup;
+} vorbis_info;
+
+/* vorbis_dsp_state buffers the current vorbis audio
+ analysis/synthesis state. The DSP state belongs to a specific
+ logical bitstream ****************************************************/
+typedef struct vorbis_dsp_state{
+ int analysisp;
+ vorbis_info *vi;
+
+ float **pcm;
+ float **pcmret;
+ int pcm_storage;
+ int pcm_current;
+ int pcm_returned;
+
+ int preextrapolate;
+ int eofflag;
+
+ long lW;
+ long W;
+ long nW;
+ long centerW;
+
+ ogg_int64_t granulepos;
+ ogg_int64_t sequence;
+
+ ogg_int64_t glue_bits;
+ ogg_int64_t time_bits;
+ ogg_int64_t floor_bits;
+ ogg_int64_t res_bits;
+
+ void *backend_state;
+} vorbis_dsp_state;
+
+typedef struct vorbis_block{
+ /* necessary stream state for linking to the framing abstraction */
+ float **pcm; /* this is a pointer into local storage */
+ oggpack_buffer opb;
+
+ long lW;
+ long W;
+ long nW;
+ int pcmend;
+ int mode;
+
+ int eofflag;
+ ogg_int64_t granulepos;
+ ogg_int64_t sequence;
+ vorbis_dsp_state *vd; /* For read-only access of configuration */
+
+ /* local storage to avoid remallocing; it's up to the mapping to
+ structure it */
+ void *localstore;
+ long localtop;
+ long localalloc;
+ long totaluse;
+ struct alloc_chain *reap;
+
+ /* bitmetrics for the frame */
+ long glue_bits;
+ long time_bits;
+ long floor_bits;
+ long res_bits;
+
+ void *internal;
+
+} vorbis_block;
+
+/* vorbis_block is a single block of data to be processed as part of
+the analysis/synthesis stream; it belongs to a specific logical
+bitstream, but is independant from other vorbis_blocks belonging to
+that logical bitstream. *************************************************/
+
+struct alloc_chain{
+ void *ptr;
+ struct alloc_chain *next;
+};
+
+/* vorbis_info contains all the setup information specific to the
+ specific compression/decompression mode in progress (eg,
+ psychoacoustic settings, channel setup, options, codebook
+ etc). vorbis_info and substructures are in backends.h.
+*********************************************************************/
+
+/* the comments are not part of vorbis_info so that vorbis_info can be
+ static storage */
+typedef struct vorbis_comment{
+ /* unlimited user comment fields. libvorbis writes 'libvorbis'
+ whatever vendor is set to in encode */
+ char **user_comments;
+ int *comment_lengths;
+ int comments;
+ char *vendor;
+
+} vorbis_comment;
+
+
+/* libvorbis encodes in two abstraction layers; first we perform DSP
+ and produce a packet (see docs/analysis.txt). The packet is then
+ coded into a framed OggSquish bitstream by the second layer (see
+ docs/framing.txt). Decode is the reverse process; we sync/frame
+ the bitstream and extract individual packets, then decode the
+ packet back into PCM audio.
+
+ The extra framing/packetizing is used in streaming formats, such as
+ files. Over the net (such as with UDP), the framing and
+ packetization aren't necessary as they're provided by the transport
+ and the streaming layer is not used */
+
+/* Vorbis PRIMITIVES: general ***************************************/
+
+extern void vorbis_info_init(vorbis_info *vi);
+extern void vorbis_info_clear(vorbis_info *vi);
+extern int vorbis_info_blocksize(vorbis_info *vi,int zo);
+extern void vorbis_comment_init(vorbis_comment *vc);
+extern void vorbis_comment_add(vorbis_comment *vc, char *comment);
+extern void vorbis_comment_add_tag(vorbis_comment *vc,
+ char *tag, char *contents);
+extern char *vorbis_comment_query(vorbis_comment *vc, char *tag, int count);
+extern int vorbis_comment_query_count(vorbis_comment *vc, char *tag);
+extern void vorbis_comment_clear(vorbis_comment *vc);
+
+extern int vorbis_block_init(vorbis_dsp_state *v, vorbis_block *vb);
+extern int vorbis_block_clear(vorbis_block *vb);
+extern void vorbis_dsp_clear(vorbis_dsp_state *v);
+
+/* Vorbis PRIMITIVES: analysis/DSP layer ****************************/
+
+extern int vorbis_analysis_init(vorbis_dsp_state *v,vorbis_info *vi);
+extern int vorbis_commentheader_out(vorbis_comment *vc, ogg_packet *op);
+extern int vorbis_analysis_headerout(vorbis_dsp_state *v,
+ vorbis_comment *vc,
+ ogg_packet *op,
+ ogg_packet *op_comm,
+ ogg_packet *op_code);
+extern float **vorbis_analysis_buffer(vorbis_dsp_state *v,int vals);
+extern int vorbis_analysis_wrote(vorbis_dsp_state *v,int vals);
+extern int vorbis_analysis_blockout(vorbis_dsp_state *v,vorbis_block *vb);
+extern int vorbis_analysis(vorbis_block *vb,ogg_packet *op);
+
+extern int vorbis_bitrate_addblock(vorbis_block *vb);
+extern int vorbis_bitrate_flushpacket(vorbis_dsp_state *vd,
+ ogg_packet *op);
+
+/* Vorbis PRIMITIVES: synthesis layer *******************************/
+extern int vorbis_synthesis_headerin(vorbis_info *vi,vorbis_comment *vc,
+ ogg_packet *op);
+
+extern int vorbis_synthesis_init(vorbis_dsp_state *v,vorbis_info *vi);
+extern int vorbis_synthesis(vorbis_block *vb,ogg_packet *op);
+extern int vorbis_synthesis_trackonly(vorbis_block *vb,ogg_packet *op);
+extern int vorbis_synthesis_blockin(vorbis_dsp_state *v,vorbis_block *vb);
+extern int vorbis_synthesis_pcmout(vorbis_dsp_state *v,float ***pcm);
+extern int vorbis_synthesis_read(vorbis_dsp_state *v,int samples);
+extern long vorbis_packet_blocksize(vorbis_info *vi,ogg_packet *op);
+
+/* Vorbis ERRORS and return codes ***********************************/
+
+#define OV_FALSE -1
+#define OV_EOF -2
+#define OV_HOLE -3
+
+#define OV_EREAD -128
+#define OV_EFAULT -129
+#define OV_EIMPL -130
+#define OV_EINVAL -131
+#define OV_ENOTVORBIS -132
+#define OV_EBADHEADER -133
+#define OV_EVERSION -134
+#define OV_ENOTAUDIO -135
+#define OV_EBADPACKET -136
+#define OV_EBADLINK -137
+#define OV_ENOSEEK -138
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif
+
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