/* GStreamer

 * Copyright (C) 2007-2008 Sebastian Dröge <sebastian.droege@collabora.co.uk>

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public

 * License along with this library; if not, write to the

 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 */

#ifndef __SPEEX_RESAMPLER_WRAPPER_H__

#define __SPEEX_RESAMPLER_WRAPPER_H__

#define SPEEX_RESAMPLER_QUALITY_MAX 10

#define SPEEX_RESAMPLER_QUALITY_MIN 0

#define SPEEX_RESAMPLER_QUALITY_DEFAULT 4

#define SPEEX_RESAMPLER_QUALITY_VOIP 3

#define SPEEX_RESAMPLER_QUALITY_DESKTOP 5

enum

{

  RESAMPLER_ERR_SUCCESS = 0,

  RESAMPLER_ERR_ALLOC_FAILED = 1,

  RESAMPLER_ERR_BAD_STATE = 2,

  RESAMPLER_ERR_INVALID_ARG = 3,

  RESAMPLER_ERR_PTR_OVERLAP = 4,

  RESAMPLER_ERR_MAX_ERROR

};

typedef struct SpeexResamplerState_ SpeexResamplerState;

typedef struct {

  SpeexResamplerState *(*init) (guint32 nb_channels,

    guint32 in_rate, guint32 out_rate, gint quality, gint * err);

  void (*destroy) (SpeexResamplerState * st);

  int (*process) (SpeexResamplerState *

    st, const guint8 * in, guint32 * in_len, guint8 * out, guint32 * out_len);

  int (*set_rate) (SpeexResamplerState * st,

    guint32 in_rate, guint32 out_rate);

  void (*get_rate) (SpeexResamplerState * st,

    guint32 * in_rate, guint32 * out_rate);

  void (*get_ratio) (SpeexResamplerState * st,

    guint32 * ratio_num, guint32 * ratio_den);

  int (*get_input_latency) (SpeexResamplerState * st);

  int (*set_quality) (SpeexResamplerState * st, gint quality);

  int (*reset_mem) (SpeexResamplerState * st);

  int (*skip_zeros) (SpeexResamplerState * st);

  const char * (*strerror) (gint err);

  unsigned int width;

} SpeexResampleFuncs;

SpeexResamplerState *resample_float_resampler_init (guint32 nb_channels,

    guint32 in_rate, guint32 out_rate, gint quality, gint * err);

void resample_float_resampler_destroy (SpeexResamplerState * st);

int resample_float_resampler_process_interleaved_float (SpeexResamplerState *

    st, const guint8 * in, guint32 * in_len, guint8 * out, guint32 * out_len);

int resample_float_resampler_set_rate (SpeexResamplerState * st,

    guint32 in_rate, guint32 out_rate);

void resample_float_resampler_get_rate (SpeexResamplerState * st,

    guint32 * in_rate, guint32 * out_rate);

void resample_float_resampler_get_ratio (SpeexResamplerState * st,

    guint32 * ratio_num, guint32 * ratio_den);

int resample_float_resampler_get_input_latency (SpeexResamplerState * st);

int resample_float_resampler_set_quality (SpeexResamplerState * st, gint quality);

int resample_float_resampler_reset_mem (SpeexResamplerState * st);

int resample_float_resampler_skip_zeros (SpeexResamplerState * st);

const char * resample_float_resampler_strerror (gint err);

static const SpeexResampleFuncs float_funcs =

{

  resample_float_resampler_init,

  resample_float_resampler_destroy,

  resample_float_resampler_process_interleaved_float,

  resample_float_resampler_set_rate,

  resample_float_resampler_get_rate,

  resample_float_resampler_get_ratio,

  resample_float_resampler_get_input_latency,

  resample_float_resampler_set_quality,

  resample_float_resampler_reset_mem,

  resample_float_resampler_skip_zeros,

  resample_float_resampler_strerror,

  32

};

SpeexResamplerState *resample_double_resampler_init (guint32 nb_channels,

    guint32 in_rate, guint32 out_rate, gint quality, gint * err);

void resample_double_resampler_destroy (SpeexResamplerState * st);

int resample_double_resampler_process_interleaved_float (SpeexResamplerState *

    st, const guint8 * in, guint32 * in_len, guint8 * out, guint32 * out_len);

int resample_double_resampler_set_rate (SpeexResamplerState * st,

    guint32 in_rate, guint32 out_rate);

void resample_double_resampler_get_rate (SpeexResamplerState * st,

    guint32 * in_rate, guint32 * out_rate);

void resample_double_resampler_get_ratio (SpeexResamplerState * st,

    guint32 * ratio_num, guint32 * ratio_den);

int resample_double_resampler_get_input_latency (SpeexResamplerState * st);

int resample_double_resampler_set_quality (SpeexResamplerState * st, gint quality);

int resample_double_resampler_reset_mem (SpeexResamplerState * st);

int resample_double_resampler_skip_zeros (SpeexResamplerState * st);

const char * resample_double_resampler_strerror (gint err);

static const SpeexResampleFuncs double_funcs =

{

  resample_double_resampler_init,

  resample_double_resampler_destroy,

  resample_double_resampler_process_interleaved_float,

  resample_double_resampler_set_rate,

  resample_double_resampler_get_rate,

  resample_double_resampler_get_ratio,

  resample_double_resampler_get_input_latency,

  resample_double_resampler_set_quality,

  resample_double_resampler_reset_mem,

  resample_double_resampler_skip_zeros,

  resample_double_resampler_strerror,

  64

};

SpeexResamplerState *resample_int_resampler_init (guint32 nb_channels,

    guint32 in_rate, guint32 out_rate, gint quality, gint * err);

void resample_int_resampler_destroy (SpeexResamplerState * st);

int resample_int_resampler_process_interleaved_int (SpeexResamplerState *

    st, const guint8 * in, guint32 * in_len, guint8 * out, guint32 * out_len);

int resample_int_resampler_set_rate (SpeexResamplerState * st,

    guint32 in_rate, guint32 out_rate);

void resample_int_resampler_get_rate (SpeexResamplerState * st,

    guint32 * in_rate, guint32 * out_rate);

void resample_int_resampler_get_ratio (SpeexResamplerState * st,

    guint32 * ratio_num, guint32 * ratio_den);

int resample_int_resampler_get_input_latency (SpeexResamplerState * st);

int resample_int_resampler_set_quality (SpeexResamplerState * st, gint quality);

int resample_int_resampler_reset_mem (SpeexResamplerState * st);

int resample_int_resampler_skip_zeros (SpeexResamplerState * st);

const char * resample_int_resampler_strerror (gint err);

static const SpeexResampleFuncs int_funcs =

{

  resample_int_resampler_init,

  resample_int_resampler_destroy,

  resample_int_resampler_process_interleaved_int,

  resample_int_resampler_set_rate,

  resample_int_resampler_get_rate,

  resample_int_resampler_get_ratio,

  resample_int_resampler_get_input_latency,

  resample_int_resampler_set_quality,

  resample_int_resampler_reset_mem,

  resample_int_resampler_skip_zeros,

  resample_int_resampler_strerror,

  16

};

#endif /* __SPEEX_RESAMPLER_WRAPPER_H__ */