1 | //filter_speex_prep.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009 |
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5 | * |
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6 | * This file is part of libroardsp a part of RoarAudio, |
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7 | * a cross-platform sound system for both, home and professional use. |
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8 | * See README for details. |
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9 | * |
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10 | * This file is free software; you can redistribute it and/or modify |
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11 | * it under the terms of the GNU General Public License version 3 |
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12 | * as published by the Free Software Foundation. |
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13 | * |
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14 | * libroardsp is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this software; see the file COPYING. If not, write to |
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21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | * |
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23 | */ |
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24 | |
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25 | #include "libroardsp.h" |
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26 | |
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27 | #ifdef _SPEEX_TYPES_H |
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28 | |
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29 | #if defined(ROAR_HAVE_LIBSPEEX) && !defined(ROAR_HAVE_LIBSPEEXDSP) |
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30 | #define _SPEEX_API_OLD |
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31 | #elif defined(ROAR_HAVE_LIBSPEEX) && defined(ROAR_HAVE_LIBSPEEXDSP) |
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32 | #define _SPEEX_API_NEW |
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33 | #endif |
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34 | |
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35 | // TODO: check parameters we allready know: |
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36 | int roardsp_speex_prep_init (struct roardsp_filter * filter, struct roar_stream * stream, int id) { |
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37 | struct roardsp_speex_prep * self; |
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38 | |
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39 | if ( filter->channels != 1 ) |
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40 | return -1; |
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41 | |
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42 | if ( filter->bits != 16 ) |
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43 | return -1; |
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44 | |
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45 | self = roar_mm_malloc(sizeof(struct roardsp_speex_prep)); |
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46 | |
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47 | if ( self == NULL ) |
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48 | return -1; |
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49 | |
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50 | memset(self, 0, sizeof(struct roardsp_speex_prep)); |
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51 | |
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52 | return 0; |
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53 | } |
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54 | |
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55 | int roardsp_speex_prep_uninit (struct roardsp_filter * filter) { |
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56 | struct roardsp_speex_prep * self = filter->inst; |
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57 | |
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58 | if ( self->preprocess != NULL ) |
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59 | speex_preprocess_state_destroy(self->preprocess); |
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60 | |
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61 | roar_mm_free(self); |
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62 | |
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63 | return 0; |
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64 | } |
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65 | |
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66 | int roardsp_speex_prep_calc161(struct roardsp_filter * filter, void * data, size_t samples) { |
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67 | struct roardsp_speex_prep * self = filter->inst; |
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68 | |
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69 | if ( self->preprocess == NULL ) |
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70 | return -1; |
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71 | |
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72 | if ( samples != self->frame_size ) |
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73 | return -1; |
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74 | |
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75 | #ifdef _SPEEX_API_OLD |
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76 | speex_preprocess(self->preprocess, data, NULL); |
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77 | #elif defined(_SPEEX_API_NEW) |
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78 | speex_preprocess_run(self->preprocess, data); |
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79 | #else |
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80 | return -1; |
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81 | #endif |
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82 | |
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83 | return 0; |
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84 | } |
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85 | |
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86 | int roardsp_speex_prep_ctl (struct roardsp_filter * filter, int cmd, void * data) { |
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87 | struct roardsp_speex_prep * self = filter->inst; |
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88 | size_t * val; |
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89 | |
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90 | switch (cmd) { |
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91 | case ROARDSP_FCTL_PACKET_SIZE: |
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92 | val = data; |
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93 | self->frame_size = *val; |
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94 | |
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95 | self->preprocess = speex_preprocess_state_init(self->frame_size, filter->rate); |
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96 | if ( self->preprocess == NULL ) |
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97 | return -1; |
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98 | |
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99 | return 0; |
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100 | break; |
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101 | } |
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102 | |
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103 | return -1; |
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104 | } |
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105 | |
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106 | int roardsp_speex_prep_reset (struct roardsp_filter * filter, int what) { |
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107 | if ( what == ROARDSP_RESET_NONE ) |
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108 | return 0; |
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109 | |
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110 | return -1; |
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111 | } |
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112 | #endif |
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113 | |
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114 | //ll |
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