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3
neo/sound/OggVorbis/vorbis/AUTHORS
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3
neo/sound/OggVorbis/vorbis/AUTHORS
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@@ -0,0 +1,3 @@
|
||||
Monty <monty@xiph.org>
|
||||
|
||||
and the rest of the Xiph.org Foundation.
|
||||
28
neo/sound/OggVorbis/vorbis/COPYING
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28
neo/sound/OggVorbis/vorbis/COPYING
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@@ -0,0 +1,28 @@
|
||||
Copyright (c) 2002, Xiph.org Foundation
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions
|
||||
are met:
|
||||
|
||||
- Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
- Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in the
|
||||
documentation and/or other materials provided with the distribution.
|
||||
|
||||
- Neither the name of the Xiph.org Foundation nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION
|
||||
OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
140
neo/sound/OggVorbis/vorbis/README
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140
neo/sound/OggVorbis/vorbis/README
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@@ -0,0 +1,140 @@
|
||||
********************************************************************
|
||||
* *
|
||||
* 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 1994-2002 *
|
||||
* by the Xiph.org Foundation, http://www.xiph.org/ *
|
||||
* *
|
||||
********************************************************************
|
||||
|
||||
NEW AND IMPORTANT:
|
||||
|
||||
If you're used to the source distribution from the first two beta
|
||||
releases, things are now rearranged a bit. Specifically, the
|
||||
'vorbis' CVS module contains only the libvorbis, libvorbisfile, and
|
||||
libvorbisenc libraries. Because Ogg bitstreams are to be used by other
|
||||
Ogg codecs, Ogg framing and streaming functionality is now in libogg
|
||||
(the 'ogg' CVS module). Vorbis utilities are in 'vorbis-tools' and various
|
||||
player plugins are in 'vorbis-plugins'. For now, you'll need to check
|
||||
out these other modules seperately. (Note: the xmms plugin is in the xmms
|
||||
CVS tree in xmms/Input/vorbis.)
|
||||
|
||||
Secondly, the Ogg/Vorbis build systems now use automake. Instead of
|
||||
'./configure; make', the proper build sequence (in each module) is
|
||||
'./autogen.sh; make'.
|
||||
|
||||
You will also need the newest versions of autoconf, automake, and libtool
|
||||
in order to compile vorbis from CVS. configure scripts are provided for you
|
||||
in tarball distributions.
|
||||
|
||||
WHAT'S HERE:
|
||||
|
||||
This source distribution includes libvorbis and an example
|
||||
encoder/player to demonstrate use of libvorbis and documentation on
|
||||
the Ogg Vorbis audio coding format.
|
||||
|
||||
Directory:
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||||
|
||||
./lib The source for the libraries, a BSD-license implementation
|
||||
of the public domain Ogg Vorbis audio encoding format.
|
||||
|
||||
./include Library API headers
|
||||
|
||||
./debian Rules/spec files for building Debian .deb packages
|
||||
|
||||
./doc Vorbis documentation
|
||||
|
||||
./examples Example code illustrating programmatic use of libvorbis,
|
||||
libvorbisfile and libvorbisenc
|
||||
|
||||
./mac Codewarrior project files and build tweaks for MacOS.
|
||||
|
||||
./macosx Project files for MacOS X.
|
||||
|
||||
./win32 Win32 projects files and build automation
|
||||
|
||||
./vq Internal utilities for training/building new LSP/residue
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||||
and auxiliary codebooks.
|
||||
|
||||
WHAT IS VORBIS:
|
||||
|
||||
Vorbis is a general purpose audio and music encoding format
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||||
contemporary to MPEG-4's AAC and TwinVQ, the next generation beyond
|
||||
MPEG audio layer 3. Unlike the MPEG sponsored formats (and other
|
||||
proprietary formats such as RealAudio G2 and Windows' flavor of the
|
||||
month), the Vorbis CODEC specification belongs to the public domain.
|
||||
All the technical details are published and documented, and any
|
||||
software entity may make full use of the format without royalty or
|
||||
patent concerns.
|
||||
|
||||
This package contains:
|
||||
|
||||
.) libvorbis, a BSD-style license software implementation of
|
||||
the Vorbis specification by the Xiph.Org Foundation (http://www.xiph.org/)
|
||||
|
||||
.) libvorbisfile, a BSD-style license convenience library
|
||||
built on Vorbis designed to simplify common uses and a number of GPL
|
||||
example programs
|
||||
|
||||
.) libvorbisenc, a BSD-style license library that provides a simple,
|
||||
programmatic encoding setup interface
|
||||
|
||||
.) example code making use of libogg, libvorbis, libvorbisfile and
|
||||
libvorbisenc
|
||||
|
||||
CONTACT:
|
||||
|
||||
The Ogg homepage is located at 'http://www.xiph.org/ogg/'.
|
||||
Vorbis's homepage is located at 'http://www.xiph.org/ogg/vorbis/'.
|
||||
Up to date technical documents, contact information, source code and
|
||||
pre-built utilities may be found there.
|
||||
|
||||
BUILDING FROM CVS:
|
||||
|
||||
./autogen.sh
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make
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||||
|
||||
and as root if desired:
|
||||
|
||||
make install
|
||||
|
||||
This will install the vorbis libraries (static and shared) into
|
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/usr/local/lib, includes into /usr/local/include and API manpages
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(once we write some) into /usr/local/man.
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||||
|
||||
BUILDING FROM TARBALL DISTRIBUTIONS:
|
||||
|
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./configure
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||||
make
|
||||
|
||||
and optionally (as root):
|
||||
make install
|
||||
|
||||
BUILDING RPMS:
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||||
|
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after normal configuring:
|
||||
|
||||
make dist
|
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rpm -ta libvorbis-<version>.tar.gz
|
||||
|
||||
BUILDING ON MACOS 9:
|
||||
|
||||
Vorbis on MacOS 9 is built using CodeWarrior 5.3. To build it, first
|
||||
verify that the Ogg libraries are already built following the
|
||||
instructions in the Ogg module README. Open vorbis/mac/libvorbis.mcp,
|
||||
switch to the "Targets" pane, select everything, and make the project.
|
||||
Do the same thing to build libvorbisenc.mcp, and libvorbisfile.mcp (in
|
||||
that order). In vorbis/mac/Output you will now have both debug and final
|
||||
versions of Vorbis shared libraries to link your projects against.
|
||||
|
||||
To build a project using Ogg Vorbis, add access paths to your
|
||||
CodeWarrior project for the ogg/include, ogg/mac/Output,
|
||||
vorbis/include, and vorbis/mac/Output folders. Be sure that
|
||||
"interpret DOS and Unix paths" is turned on in your project; it can
|
||||
be found in the "access paths" pane in your project settings. Now
|
||||
simply add the shared libraries you need to your project (OggLib and
|
||||
VorbisLib at least) and #include "ogg/ogg.h" and "vorbis/codec.h"
|
||||
wherever you need to access Ogg and Vorbis functionality.
|
||||
240
neo/sound/OggVorbis/vorbis/codec.h
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240
neo/sound/OggVorbis/vorbis/codec.h
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@@ -0,0 +1,240 @@
|
||||
/********************************************************************
|
||||
* *
|
||||
* 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 1.45 2003/09/05 22:34:46 giles Exp $
|
||||
|
||||
********************************************************************/
|
||||
|
||||
#ifndef _vorbis_codec_h_
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||||
#define _vorbis_codec_h_
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||||
|
||||
#ifdef __cplusplus
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||||
extern "C"
|
||||
{
|
||||
#endif /* __cplusplus */
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||||
|
||||
#include "../ogg/ogg.h"
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||||
|
||||
typedef struct vorbis_info{
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int version;
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||||
int channels;
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||||
long rate;
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||||
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||||
/* The below bitrate declarations are *hints*.
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||||
Combinations of the three values carry the following implications:
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||||
|
||||
all three set to the same value:
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||||
implies a fixed rate bitstream
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||||
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.
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||||
none set:
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||||
the coder does not care to speculate.
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||||
*/
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||||
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||||
long bitrate_upper;
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||||
long bitrate_nominal;
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||||
long bitrate_lower;
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long bitrate_window;
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||||
void *codec_setup;
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} vorbis_info;
|
||||
|
||||
/* vorbis_dsp_state buffers the current vorbis audio
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||||
analysis/synthesis state. The DSP state belongs to a specific
|
||||
logical bitstream ****************************************************/
|
||||
typedef struct vorbis_dsp_state{
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||||
int analysisp;
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||||
vorbis_info *vi;
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||||
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||||
float **pcm;
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||||
float **pcmret;
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||||
int pcm_storage;
|
||||
int pcm_current;
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||||
int pcm_returned;
|
||||
|
||||
int preextrapolate;
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||||
int eofflag;
|
||||
|
||||
long lW;
|
||||
long W;
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||||
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;
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||||
} vorbis_dsp_state;
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||||
|
||||
typedef struct vorbis_block{
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||||
/* necessary stream state for linking to the framing abstraction */
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||||
float **pcm; /* this is a pointer into local storage */
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||||
oggpack_buffer opb;
|
||||
|
||||
long lW;
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||||
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 */
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||||
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);
|
||||
extern double vorbis_granule_time(vorbis_dsp_state *v,
|
||||
ogg_int64_t granulepos);
|
||||
|
||||
/* 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_restart(vorbis_dsp_state *v);
|
||||
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_lapout(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);
|
||||
|
||||
extern int vorbis_synthesis_halfrate(vorbis_info *v,int flag);
|
||||
extern int vorbis_synthesis_halfrate_p(vorbis_info *v);
|
||||
|
||||
/* 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
|
||||
|
||||
93
neo/sound/OggVorbis/vorbis/vorbisenc.h
Normal file
93
neo/sound/OggVorbis/vorbis/vorbisenc.h
Normal file
@@ -0,0 +1,93 @@
|
||||
/********************************************************************
|
||||
* *
|
||||
* 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: vorbis encode-engine setup
|
||||
last mod: $Id: vorbisenc.h,v 1.10 2002/07/01 11:20:10 xiphmont Exp $
|
||||
|
||||
********************************************************************/
|
||||
|
||||
#ifndef _OV_ENC_H_
|
||||
#define _OV_ENC_H_
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#include "codec.h"
|
||||
|
||||
extern int vorbis_encode_init(vorbis_info *vi,
|
||||
long channels,
|
||||
long rate,
|
||||
|
||||
long max_bitrate,
|
||||
long nominal_bitrate,
|
||||
long min_bitrate);
|
||||
|
||||
extern int vorbis_encode_setup_managed(vorbis_info *vi,
|
||||
long channels,
|
||||
long rate,
|
||||
|
||||
long max_bitrate,
|
||||
long nominal_bitrate,
|
||||
long min_bitrate);
|
||||
|
||||
extern int vorbis_encode_setup_vbr(vorbis_info *vi,
|
||||
long channels,
|
||||
long rate,
|
||||
|
||||
float /* quality level from 0. (lo) to 1. (hi) */
|
||||
);
|
||||
|
||||
extern int vorbis_encode_init_vbr(vorbis_info *vi,
|
||||
long channels,
|
||||
long rate,
|
||||
|
||||
float base_quality /* quality level from 0. (lo) to 1. (hi) */
|
||||
);
|
||||
|
||||
extern int vorbis_encode_setup_init(vorbis_info *vi);
|
||||
|
||||
extern int vorbis_encode_ctl(vorbis_info *vi,int number,void *arg);
|
||||
|
||||
#define OV_ECTL_RATEMANAGE_GET 0x10
|
||||
|
||||
#define OV_ECTL_RATEMANAGE_SET 0x11
|
||||
#define OV_ECTL_RATEMANAGE_AVG 0x12
|
||||
#define OV_ECTL_RATEMANAGE_HARD 0x13
|
||||
|
||||
#define OV_ECTL_LOWPASS_GET 0x20
|
||||
#define OV_ECTL_LOWPASS_SET 0x21
|
||||
|
||||
#define OV_ECTL_IBLOCK_GET 0x30
|
||||
#define OV_ECTL_IBLOCK_SET 0x31
|
||||
|
||||
struct ovectl_ratemanage_arg {
|
||||
int management_active;
|
||||
|
||||
long bitrate_hard_min;
|
||||
long bitrate_hard_max;
|
||||
double bitrate_hard_window;
|
||||
|
||||
long bitrate_av_lo;
|
||||
long bitrate_av_hi;
|
||||
double bitrate_av_window;
|
||||
double bitrate_av_window_center;
|
||||
};
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
144
neo/sound/OggVorbis/vorbis/vorbisfile.h
Normal file
144
neo/sound/OggVorbis/vorbis/vorbisfile.h
Normal file
@@ -0,0 +1,144 @@
|
||||
/********************************************************************
|
||||
* *
|
||||
* 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: stdio-based convenience library for opening/seeking/decoding
|
||||
last mod: $Id: vorbisfile.h,v 1.20 2003/08/18 05:34:01 xiphmont Exp $
|
||||
|
||||
********************************************************************/
|
||||
|
||||
#ifndef _OV_FILE_H_
|
||||
#define _OV_FILE_H_
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#include <stdio.h>
|
||||
#include "codec.h"
|
||||
|
||||
/* 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; /* overloaded to maintain binary
|
||||
compatability; x2 size, stores both
|
||||
beginning and end values */
|
||||
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;
|
||||
|
||||
double bittrack;
|
||||
double 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;
|
||||
|
||||
int stream;
|
||||
} 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 double ov_TIME_Total(OggVorbis_File *vf,int i);
|
||||
|
||||
extern int ov_raw_seek(OggVorbis_File *vf,ogg_int64_t 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,double pos);
|
||||
extern int ov_time_seek_page(OggVorbis_File *vf,double pos);
|
||||
|
||||
extern int ov_raw_seek_lap(OggVorbis_File *vf,ogg_int64_t pos);
|
||||
extern int ov_pcm_seek_lap(OggVorbis_File *vf,ogg_int64_t pos);
|
||||
extern int ov_pcm_seek_page_lap(OggVorbis_File *vf,ogg_int64_t pos);
|
||||
extern int ov_time_seek_lap(OggVorbis_File *vf,double pos);
|
||||
extern int ov_time_seek_page_lap(OggVorbis_File *vf,double pos);
|
||||
|
||||
extern ogg_int64_t ov_raw_tell(OggVorbis_File *vf);
|
||||
extern ogg_int64_t ov_pcm_tell(OggVorbis_File *vf);
|
||||
extern double 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_float(OggVorbis_File *vf,float ***pcm_channels,int samples,
|
||||
int *bitstream);
|
||||
extern long ov_read(OggVorbis_File *vf,char *buffer,int length,
|
||||
int bigendianp,int word,int sgned,int *bitstream);
|
||||
extern int ov_crosslap(OggVorbis_File *vf1,OggVorbis_File *vf2);
|
||||
|
||||
extern int ov_halfrate(OggVorbis_File *vf,int flag);
|
||||
extern int ov_halfrate_p(OggVorbis_File *vf);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
Reference in New Issue
Block a user