/* 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., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, 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 #define SPEEX_RESAMPLER_SINC_FILTER_DEFAULT SPEEX_RESAMPLER_SINC_FILTER_AUTO #define SPEEX_RESAMPLER_SINC_FILTER_AUTO_THRESHOLD_DEFAULT (1 * 1048576) 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 enum { SPEEX_RESAMPLER_SINC_FILTER_INTERPOLATED = 0, SPEEX_RESAMPLER_SINC_FILTER_FULL = 1, SPEEX_RESAMPLER_SINC_FILTER_AUTO = 2 } SpeexResamplerSincFilterMode; typedef struct SpeexResamplerState_ SpeexResamplerState; typedef struct { SpeexResamplerState *(*init) (guint32 nb_channels, guint32 in_rate, guint32 out_rate, gint quality, SpeexResamplerSincFilterMode sinc_filter_mode, guint32 sinc_filter_auto_threshold, 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 (*get_filt_len) (SpeexResamplerState * st); int (*get_sinc_filter_mode) (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, SpeexResamplerSincFilterMode sinc_filter_mode, guint32 sinc_filter_auto_threshold, 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_get_filt_len (SpeexResamplerState * st); int resample_float_resampler_get_sinc_filter_mode (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_get_filt_len, resample_float_resampler_get_sinc_filter_mode, 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, SpeexResamplerSincFilterMode sinc_filter_mode, guint32 sinc_filter_auto_threshold, 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_get_filt_len (SpeexResamplerState * st); int resample_double_resampler_get_sinc_filter_mode (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_get_filt_len, resample_double_resampler_get_sinc_filter_mode, 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, SpeexResamplerSincFilterMode sinc_filter_mode, guint32 sinc_filter_auto_threshold, 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_get_filt_len (SpeexResamplerState * st); int resample_int_resampler_get_sinc_filter_mode (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_get_filt_len, resample_int_resampler_get_sinc_filter_mode, 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__ */