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-rw-r--r--vorbis/include/Makefile.am3
-rw-r--r--vorbis/include/vorbis/Makefile.am7
-rw-r--r--vorbis/include/vorbis/codec.h242
-rw-r--r--vorbis/include/vorbis/vorbisenc.h435
-rw-r--r--vorbis/include/vorbis/vorbisfile.h205
5 files changed, 892 insertions, 0 deletions
diff --git a/vorbis/include/Makefile.am b/vorbis/include/Makefile.am
new file mode 100644
index 0000000..0f34fab
--- /dev/null
+++ b/vorbis/include/Makefile.am
@@ -0,0 +1,3 @@
+## Process this file with automake to produce Makefile.in
+
+SUBDIRS = vorbis
diff --git a/vorbis/include/vorbis/Makefile.am b/vorbis/include/vorbis/Makefile.am
new file mode 100644
index 0000000..dbba34e
--- /dev/null
+++ b/vorbis/include/vorbis/Makefile.am
@@ -0,0 +1,7 @@
+## Process this file with automake to produce Makefile.in
+
+vorbisincludedir = $(includedir)/vorbis
+
+vorbisinclude_HEADERS = codec.h vorbisfile.h vorbisenc.h
+
+
diff --git a/vorbis/include/vorbis/codec.h b/vorbis/include/vorbis/codec.h
new file mode 100644
index 0000000..42aa291
--- /dev/null
+++ b/vorbis/include/vorbis/codec.h
@@ -0,0 +1,242 @@
+/********************************************************************
+ * *
+ * 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 Xiph.Org Foundation http://www.xiph.org/ *
+
+ ********************************************************************
+
+ function: libvorbis codec headers
+
+ ********************************************************************/
+
+#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 independent 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, const char *comment);
+extern void vorbis_comment_add_tag(vorbis_comment *vc,
+ const char *tag, const char *contents);
+extern char *vorbis_comment_query(vorbis_comment *vc, const char *tag, int count);
+extern int vorbis_comment_query_count(vorbis_comment *vc, const 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);
+
+extern const char *vorbis_version_string(void);
+
+/* 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_idheader(ogg_packet *op);
+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
+
diff --git a/vorbis/include/vorbis/vorbisenc.h b/vorbis/include/vorbis/vorbisenc.h
new file mode 100644
index 0000000..55f3b4a
--- /dev/null
+++ b/vorbis/include/vorbis/vorbisenc.h
@@ -0,0 +1,435 @@
+/********************************************************************
+ * *
+ * 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 Xiph.Org Foundation http://www.xiph.org/ *
+ * *
+ ********************************************************************
+
+ function: vorbis encode-engine setup
+
+ ********************************************************************/
+
+/** \file
+ * Libvorbisenc is a convenient API for setting up an encoding
+ * environment using libvorbis. Libvorbisenc encapsulates the
+ * actions needed to set up the encoder properly.
+ */
+
+#ifndef _OV_ENC_H_
+#define _OV_ENC_H_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+#include "codec.h"
+
+/**
+ * This is the primary function within libvorbisenc for setting up managed
+ * bitrate modes.
+ *
+ * Before this function is called, the \ref vorbis_info
+ * struct should be initialized by using vorbis_info_init() from the libvorbis
+ * API. After encoding, vorbis_info_clear() should be called.
+ *
+ * The max_bitrate, nominal_bitrate, and min_bitrate settings are used to set
+ * constraints for the encoded file. This function uses these settings to
+ * select the appropriate encoding mode and set it up.
+ *
+ * \param vi Pointer to an initialized \ref vorbis_info struct.
+ * \param channels The number of channels to be encoded.
+ * \param rate The sampling rate of the source audio.
+ * \param max_bitrate Desired maximum bitrate (limit). -1 indicates unset.
+ * \param nominal_bitrate Desired average, or central, bitrate. -1 indicates unset.
+ * \param min_bitrate Desired minimum bitrate. -1 indicates unset.
+ *
+ * \return Zero for success, and negative values for failure.
+ *
+ * \retval 0 Success.
+ * \retval OV_EFAULT Internal logic fault; indicates a bug or heap/stack corruption.
+ * \retval OV_EINVAL Invalid setup request, eg, out of range argument.
+ * \retval OV_EIMPL Unimplemented mode; unable to comply with bitrate request.
+ */
+extern int vorbis_encode_init(vorbis_info *vi,
+ long channels,
+ long rate,
+
+ long max_bitrate,
+ long nominal_bitrate,
+ long min_bitrate);
+
+/**
+ * This function performs step-one of a three-step bitrate-managed encode
+ * setup. It functions similarly to the one-step setup performed by \ref
+ * vorbis_encode_init but allows an application to make further encode setup
+ * tweaks using \ref vorbis_encode_ctl before finally calling \ref
+ * vorbis_encode_setup_init to complete the setup process.
+ *
+ * Before this function is called, the \ref vorbis_info struct should be
+ * initialized by using vorbis_info_init() from the libvorbis API. After
+ * encoding, vorbis_info_clear() should be called.
+ *
+ * The max_bitrate, nominal_bitrate, and min_bitrate settings are used to set
+ * constraints for the encoded file. This function uses these settings to
+ * select the appropriate encoding mode and set it up.
+ *
+ * \param vi Pointer to an initialized vorbis_info struct.
+ * \param channels The number of channels to be encoded.
+ * \param rate The sampling rate of the source audio.
+ * \param max_bitrate Desired maximum bitrate (limit). -1 indicates unset.
+ * \param nominal_bitrate Desired average, or central, bitrate. -1 indicates unset.
+ * \param min_bitrate Desired minimum bitrate. -1 indicates unset.
+ *
+ * \return Zero for success, and negative for failure.
+ *
+ * \retval 0 Success
+ * \retval OV_EFAULT Internal logic fault; indicates a bug or heap/stack corruption.
+ * \retval OV_EINVAL Invalid setup request, eg, out of range argument.
+ * \retval OV_EIMPL Unimplemented mode; unable to comply with bitrate request.
+ */
+extern int vorbis_encode_setup_managed(vorbis_info *vi,
+ long channels,
+ long rate,
+
+ long max_bitrate,
+ long nominal_bitrate,
+ long min_bitrate);
+
+/**
+ * This function performs step-one of a three-step variable bitrate
+ * (quality-based) encode setup. It functions similarly to the one-step setup
+ * performed by \ref vorbis_encode_init_vbr() but allows an application to
+ * make further encode setup tweaks using \ref vorbis_encode_ctl() before
+ * finally calling \ref vorbis_encode_setup_init to complete the setup
+ * process.
+ *
+ * Before this function is called, the \ref vorbis_info struct should be
+ * initialized by using \ref vorbis_info_init() from the libvorbis API. After
+ * encoding, vorbis_info_clear() should be called.
+ *
+ * \param vi Pointer to an initialized vorbis_info struct.
+ * \param channels The number of channels to be encoded.
+ * \param rate The sampling rate of the source audio.
+ * \param quality Desired quality level, currently from -0.1 to 1.0 (lo to hi).
+ *
+ * \return Zero for success, and negative values for failure.
+ *
+ * \retval 0 Success
+ * \retval OV_EFAULT Internal logic fault; indicates a bug or heap/stack corruption.
+ * \retval OV_EINVAL Invalid setup request, eg, out of range argument.
+ * \retval OV_EIMPL Unimplemented mode; unable to comply with quality level request.
+ */
+extern int vorbis_encode_setup_vbr(vorbis_info *vi,
+ long channels,
+ long rate,
+
+ float quality
+ );
+
+/**
+ * This is the primary function within libvorbisenc for setting up variable
+ * bitrate ("quality" based) modes.
+ *
+ *
+ * Before this function is called, the vorbis_info struct should be
+ * initialized by using vorbis_info_init() from the libvorbis API. After
+ * encoding, vorbis_info_clear() should be called.
+ *
+ * \param vi Pointer to an initialized vorbis_info struct.
+ * \param channels The number of channels to be encoded.
+ * \param rate The sampling rate of the source audio.
+ * \param base_quality Desired quality level, currently from -0.1 to 1.0 (lo to hi).
+ *
+ *
+ * \return Zero for success, or a negative number for failure.
+ *
+ * \retval 0 Success
+ * \retval OV_EFAULT Internal logic fault; indicates a bug or heap/stack corruption.
+ * \retval OV_EINVAL Invalid setup request, eg, out of range argument.
+ * \retval OV_EIMPL Unimplemented mode; unable to comply with quality level request.
+ */
+extern int vorbis_encode_init_vbr(vorbis_info *vi,
+ long channels,
+ long rate,
+
+ float base_quality
+ );
+
+/**
+ * This function performs the last stage of three-step encoding setup, as
+ * described in the API overview under managed bitrate modes.
+ *
+ * Before this function is called, the \ref vorbis_info struct should be
+ * initialized by using vorbis_info_init() from the libvorbis API, one of
+ * \ref vorbis_encode_setup_managed() or \ref vorbis_encode_setup_vbr() called to
+ * initialize the high-level encoding setup, and \ref vorbis_encode_ctl()
+ * called if necessary to make encoding setup changes.
+ * vorbis_encode_setup_init() finalizes the highlevel encoding structure into
+ * a complete encoding setup after which the application may make no further
+ * setup changes.
+ *
+ * After encoding, vorbis_info_clear() should be called.
+ *
+ * \param vi Pointer to an initialized \ref vorbis_info struct.
+ *
+ * \return Zero for success, and negative values for failure.
+ *
+ * \retval 0 Success.
+ * \retval OV_EFAULT Internal logic fault; indicates a bug or heap/stack corruption.
+ *
+ * \retval OV_EINVAL Attempt to use vorbis_encode_setup_init() without first
+ * calling one of vorbis_encode_setup_managed() or vorbis_encode_setup_vbr() to
+ * initialize the high-level encoding setup
+ *
+ */
+extern int vorbis_encode_setup_init(vorbis_info *vi);
+
+/**
+ * This function implements a generic interface to miscellaneous encoder
+ * settings similar to the classic UNIX 'ioctl()' system call. Applications
+ * may use vorbis_encode_ctl() to query or set bitrate management or quality
+ * mode details by using one of several \e request arguments detailed below.
+ * vorbis_encode_ctl() must be called after one of
+ * vorbis_encode_setup_managed() or vorbis_encode_setup_vbr(). When used
+ * to modify settings, \ref vorbis_encode_ctl() must be called before \ref
+ * vorbis_encode_setup_init().
+ *
+ * \param vi Pointer to an initialized vorbis_info struct.
+ *
+ * \param number Specifies the desired action; See \ref encctlcodes "the list
+ * of available requests".
+ *
+ * \param arg void * pointing to a data structure matching the request
+ * argument.
+ *
+ * \retval 0 Success. Any further return information (such as the result of a
+ * query) is placed into the storage pointed to by *arg.
+ *
+ * \retval OV_EINVAL Invalid argument, or an attempt to modify a setting after
+ * calling vorbis_encode_setup_init().
+ *
+ * \retval OV_EIMPL Unimplemented or unknown request
+ */
+extern int vorbis_encode_ctl(vorbis_info *vi,int number,void *arg);
+
+/**
+ * \deprecated This is a deprecated interface. Please use vorbis_encode_ctl()
+ * with the \ref ovectl_ratemanage2_arg struct and \ref
+ * OV_ECTL_RATEMANAGE2_GET and \ref OV_ECTL_RATEMANAGE2_SET calls in new code.
+ *
+ * The \ref ovectl_ratemanage_arg structure is used with vorbis_encode_ctl()
+ * and the \ref OV_ECTL_RATEMANAGE_GET, \ref OV_ECTL_RATEMANAGE_SET, \ref
+ * OV_ECTL_RATEMANAGE_AVG, \ref OV_ECTL_RATEMANAGE_HARD calls in order to
+ * query and modify specifics of the encoder's bitrate management
+ * configuration.
+*/
+struct ovectl_ratemanage_arg {
+ int management_active; /**< nonzero if bitrate management is active*/
+/** hard lower limit (in kilobits per second) below which the stream bitrate
+ will never be allowed for any given bitrate_hard_window seconds of time.*/
+ long bitrate_hard_min;
+/** hard upper limit (in kilobits per second) above which the stream bitrate
+ will never be allowed for any given bitrate_hard_window seconds of time.*/
+ long bitrate_hard_max;
+/** the window period (in seconds) used to regulate the hard bitrate minimum
+ and maximum*/
+ double bitrate_hard_window;
+/** soft lower limit (in kilobits per second) below which the average bitrate
+ tracker will start nudging the bitrate higher.*/
+ long bitrate_av_lo;
+/** soft upper limit (in kilobits per second) above which the average bitrate
+ tracker will start nudging the bitrate lower.*/
+ long bitrate_av_hi;
+/** the window period (in seconds) used to regulate the average bitrate
+ minimum and maximum.*/
+ double bitrate_av_window;
+/** Regulates the relative centering of the average and hard windows; in
+ libvorbis 1.0 and 1.0.1, the hard window regulation overlapped but
+ followed the average window regulation. In libvorbis 1.1 a bit-reservoir
+ interface replaces the old windowing interface; the older windowing
+ interface is simulated and this field has no effect.*/
+ double bitrate_av_window_center;
+};
+
+/**
+ * \name struct ovectl_ratemanage2_arg
+ *
+ * The ovectl_ratemanage2_arg structure is used with vorbis_encode_ctl() and
+ * the OV_ECTL_RATEMANAGE2_GET and OV_ECTL_RATEMANAGE2_SET calls in order to
+ * query and modify specifics of the encoder's bitrate management
+ * configuration.
+ *
+*/
+struct ovectl_ratemanage2_arg {
+ int management_active; /**< nonzero if bitrate management is active */
+/** Lower allowed bitrate limit in kilobits per second */
+ long bitrate_limit_min_kbps;
+/** Upper allowed bitrate limit in kilobits per second */
+ long bitrate_limit_max_kbps;
+ long bitrate_limit_reservoir_bits; /**<Size of the bitrate reservoir in bits */
+/** Regulates the bitrate reservoir's preferred fill level in a range from 0.0
+ * to 1.0; 0.0 tries to bank bits to buffer against future bitrate spikes, 1.0
+ * buffers against future sudden drops in instantaneous bitrate. Default is
+ * 0.1
+ */
+ double bitrate_limit_reservoir_bias;
+/** Average bitrate setting in kilobits per second */
+ long bitrate_average_kbps;
+/** Slew rate limit setting for average bitrate adjustment; sets the minimum
+ * time in seconds the bitrate tracker may swing from one extreme to the
+ * other when boosting or damping average bitrate.
+ */
+ double bitrate_average_damping;
+};
+
+
+/**
+ * \name vorbis_encode_ctl() codes
+ *
+ * \anchor encctlcodes
+ *
+ * These values are passed as the \c number parameter of vorbis_encode_ctl().
+ * The type of the referent of that function's \c arg pointer depends on these
+ * codes.
+ */
+/*@{*/
+
+/**
+ * Query the current encoder bitrate management setting.
+ *
+ *Argument: <tt>struct ovectl_ratemanage2_arg *</tt>
+ *
+ * Used to query the current encoder bitrate management setting. Also used to
+ * initialize fields of an ovectl_ratemanage2_arg structure for use with
+ * \ref OV_ECTL_RATEMANAGE2_SET.
+ */
+#define OV_ECTL_RATEMANAGE2_GET 0x14
+
+/**
+ * Set the current encoder bitrate management settings.
+ *
+ * Argument: <tt>struct ovectl_ratemanage2_arg *</tt>
+ *
+ * Used to set the current encoder bitrate management settings to the values
+ * listed in the ovectl_ratemanage2_arg. Passing a NULL pointer will disable
+ * bitrate management.
+*/
+#define OV_ECTL_RATEMANAGE2_SET 0x15
+
+/**
+ * Returns the current encoder hard-lowpass setting (kHz) in the double
+ * pointed to by arg.
+ *
+ * Argument: <tt>double *</tt>
+*/
+#define OV_ECTL_LOWPASS_GET 0x20
+
+/**
+ * Sets the encoder hard-lowpass to the value (kHz) pointed to by arg. Valid
+ * lowpass settings range from 2 to 99.
+ *
+ * Argument: <tt>double *</tt>
+*/
+#define OV_ECTL_LOWPASS_SET 0x21
+
+/**
+ * Returns the current encoder impulse block setting in the double pointed
+ * to by arg.
+ *
+ * Argument: <tt>double *</tt>
+*/
+#define OV_ECTL_IBLOCK_GET 0x30
+
+/**
+ * Sets the impulse block bias to the the value pointed to by arg.
+ *
+ * Argument: <tt>double *</tt>
+ *
+ * Valid range is -15.0 to 0.0 [default]. A negative impulse block bias will
+ * direct to encoder to use more bits when incoding short blocks that contain
+ * strong impulses, thus improving the accuracy of impulse encoding.
+ */
+#define OV_ECTL_IBLOCK_SET 0x31
+
+/**
+ * Returns the current encoder coupling setting in the int pointed
+ * to by arg.
+ *
+ * Argument: <tt>int *</tt>
+*/
+#define OV_ECTL_COUPLING_GET 0x40
+
+/**
+ * Enables/disables channel coupling in multichannel encoding according to arg.
+ *
+ * Argument: <tt>int *</tt>
+ *
+ * Zero disables channel coupling for multichannel inputs, nonzer enables
+ * channel coupling. Setting has no effect on monophonic encoding or
+ * multichannel counts that do not offer coupling. At present, coupling is
+ * available for stereo and 5.1 encoding.
+ */
+#define OV_ECTL_COUPLING_SET 0x41
+
+ /* deprecated rate management supported only for compatibility */
+
+/**
+ * Old interface to querying bitrate management settings.
+ *
+ * Deprecated after move to bit-reservoir style management in 1.1 rendered
+ * this interface partially obsolete.
+
+ * \deprecated Please use \ref OV_ECTL_RATEMANAGE2_GET instead.
+ *
+ * Argument: <tt>struct ovectl_ratemanage_arg *</tt>
+ */
+#define OV_ECTL_RATEMANAGE_GET 0x10
+/**
+ * Old interface to modifying bitrate management settings.
+ *
+ * deprecated after move to bit-reservoir style management in 1.1 rendered
+ * this interface partially obsolete.
+ *
+ * \deprecated Please use \ref OV_ECTL_RATEMANAGE2_SET instead.
+ *
+ * Argument: <tt>struct ovectl_ratemanage_arg *</tt>
+ */
+#define OV_ECTL_RATEMANAGE_SET 0x11
+/**
+ * Old interface to setting average-bitrate encoding mode.
+ *
+ * Deprecated after move to bit-reservoir style management in 1.1 rendered
+ * this interface partially obsolete.
+ *
+ * \deprecated Please use \ref OV_ECTL_RATEMANAGE2_SET instead.
+ *
+ * Argument: <tt>struct ovectl_ratemanage_arg *</tt>
+ */
+#define OV_ECTL_RATEMANAGE_AVG 0x12
+/**
+ * Old interface to setting bounded-bitrate encoding modes.
+ *
+ * deprecated after move to bit-reservoir style management in 1.1 rendered
+ * this interface partially obsolete.
+ *
+ * \deprecated Please use \ref OV_ECTL_RATEMANAGE2_SET instead.
+ *
+ * Argument: <tt>struct ovectl_ratemanage_arg *</tt>
+ */
+#define OV_ECTL_RATEMANAGE_HARD 0x13
+
+/*@}*/
+
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif
diff --git a/vorbis/include/vorbis/vorbisfile.h b/vorbis/include/vorbis/vorbisfile.h
new file mode 100644
index 0000000..5662611
--- /dev/null
+++ b/vorbis/include/vorbis/vorbisfile.h
@@ -0,0 +1,205 @@
+/********************************************************************
+ * *
+ * 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 1994-2007 *
+ * by the Xiph.Org Foundation http://www.xiph.org/ *
+ * *
+ ********************************************************************
+
+ 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 "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;
+
+#ifndef OV_EXCLUDE_STATIC_CALLBACKS
+
+/* a few sets of convenient callbacks, especially for use under
+ * Windows where ov_open_callbacks() should always be used instead of
+ * ov_open() to avoid problems with incompatible crt.o version linking
+ * issues. */
+
+static int _ov_header_fseek_wrap(FILE *f,ogg_int64_t off,int whence){
+ if(f==NULL)return(-1);
+
+#ifdef __MINGW32__
+ return fseeko64(f,off,whence);
+#elif defined (_WIN32)
+ return _fseeki64(f,off,whence);
+#else
+ return fseek(f,off,whence);
+#endif
+}
+
+/* These structs below (OV_CALLBACKS_DEFAULT etc) are defined here as
+ * static data. That means that every file which includes this header
+ * will get its own copy of these structs whether it uses them or
+ * not unless it #defines OV_EXCLUDE_STATIC_CALLBACKS.
+ * These static symbols are essential on platforms such as Windows on
+ * which several different versions of stdio support may be linked to
+ * by different DLLs, and we need to be certain we know which one
+ * we're using (the same one as the main application).
+ */
+
+static ov_callbacks OV_CALLBACKS_DEFAULT = {
+ (size_t (*)(void *, size_t, size_t, void *)) fread,
+ (int (*)(void *, ogg_int64_t, int)) _ov_header_fseek_wrap,
+ (int (*)(void *)) fclose,
+ (long (*)(void *)) ftell
+};
+
+static ov_callbacks OV_CALLBACKS_NOCLOSE = {
+ (size_t (*)(void *, size_t, size_t, void *)) fread,
+ (int (*)(void *, ogg_int64_t, int)) _ov_header_fseek_wrap,
+ (int (*)(void *)) NULL,
+ (long (*)(void *)) ftell
+};
+
+static ov_callbacks OV_CALLBACKS_STREAMONLY = {
+ (size_t (*)(void *, size_t, size_t, void *)) fread,
+ (int (*)(void *, ogg_int64_t, int)) NULL,
+ (int (*)(void *)) fclose,
+ (long (*)(void *)) NULL
+};
+
+static ov_callbacks OV_CALLBACKS_STREAMONLY_NOCLOSE = {
+ (size_t (*)(void *, size_t, size_t, void *)) fread,
+ (int (*)(void *, ogg_int64_t, int)) NULL,
+ (int (*)(void *)) NULL,
+ (long (*)(void *)) NULL
+};
+
+#endif
+
+#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
+ compatibility; 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;
+
+} OggVorbis_File;
+
+
+extern int ov_clear(OggVorbis_File *vf);
+extern int ov_fopen(const char *path,OggVorbis_File *vf);
+extern int ov_open(FILE *f,OggVorbis_File *vf,const char *initial,long ibytes);
+extern int ov_open_callbacks(void *datasource, OggVorbis_File *vf,
+ const char *initial, long ibytes, ov_callbacks callbacks);
+
+extern int ov_test(FILE *f,OggVorbis_File *vf,const char *initial,long ibytes);
+extern int ov_test_callbacks(void *datasource, OggVorbis_File *vf,
+ const 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_filter(OggVorbis_File *vf,char *buffer,int length,
+ int bigendianp,int word,int sgned,int *bitstream,
+ void (*filter)(float **pcm,long channels,long samples,void *filter_param),void *filter_param);
+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
+