1 | //codecfilter_sndfile.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008 |
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5 | * |
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6 | * This file is part of roard 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 | * RoarAudio 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 "roard.h" |
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26 | |
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27 | #ifdef ROAR_HAVE_LIBSNDFILE |
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28 | |
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29 | int cf_sndfile_open(CODECFILTER_USERDATA_T * inst, int codec, |
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30 | struct roar_stream_server * info, |
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31 | struct roar_codecfilter * filter) { |
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32 | struct codecfilter_sndfile_inst * obj; |
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33 | |
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34 | if ( (obj = (struct codecfilter_sndfile_inst *) malloc(sizeof(struct codecfilter_sndfile_inst))) == NULL ) |
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35 | return -1; |
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36 | |
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37 | memset(obj, 0, sizeof(struct codecfilter_sndfile_inst)); |
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38 | |
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39 | obj->stream = info; |
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40 | |
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41 | *inst = (CODECFILTER_USERDATA_T) obj; |
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42 | |
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43 | /* |
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44 | s->info.bits = 16; |
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45 | s->info.codec = ROAR_CODEC_DEFAULT; |
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46 | */ |
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47 | |
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48 | return 0; |
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49 | } |
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50 | |
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51 | int cf_sndfile_close(CODECFILTER_USERDATA_T inst) { |
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52 | struct codecfilter_sndfile_inst * obj = (struct codecfilter_sndfile_inst *) inst; |
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53 | |
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54 | if ( obj->state != NULL ) |
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55 | sf_close(obj->state); |
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56 | |
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57 | free(obj); |
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58 | |
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59 | return 0; |
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60 | } |
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61 | |
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62 | int cf_sndfile_read(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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63 | struct codecfilter_sndfile_inst * obj = (struct codecfilter_sndfile_inst *) inst; |
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64 | struct roar_stream * s = ROAR_STREAM(obj->stream); |
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65 | int ret; |
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66 | |
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67 | if ( obj->opened ) { |
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68 | len /= obj->bytes; |
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69 | |
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70 | if ( obj->bytes == 2 ) { |
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71 | if ( (ret = sf_read_short(obj->state, (short*)buf, len)) == -1 ) |
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72 | return -1; |
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73 | } else if ( obj->bytes == 4 ) { |
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74 | if ( (ret = sf_read_int(obj->state, (int*)buf, len)) == -1 ) |
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75 | return -1; |
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76 | } else { |
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77 | errno = ENOSYS; |
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78 | return -1; |
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79 | } |
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80 | |
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81 | return ret * obj->bytes; |
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82 | } else { |
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83 | if ( (obj->state = sf_open_fd(s->fh, SFM_READ, &(obj->info), 0)) == NULL ) { |
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84 | ROAR_ERR("cf_sndfile_read(*): can not sf_open_fd(*)!"); |
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85 | return -1; |
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86 | } |
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87 | |
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88 | s->info.codec = ROAR_CODEC_DEFAULT; |
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89 | s->info.rate = obj->info.samplerate; |
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90 | s->info.channels = obj->info.channels; |
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91 | |
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92 | obj->bytes = 2; |
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93 | if ( (obj->info.format & SF_FORMAT_SUBMASK) == SF_FORMAT_PCM_24 || |
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94 | (obj->info.format & SF_FORMAT_SUBMASK) == SF_FORMAT_PCM_32 ) { |
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95 | obj->bytes = 4; |
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96 | } |
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97 | |
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98 | s->info.bits = obj->bytes * 8; |
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99 | |
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100 | obj->opened = 1; |
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101 | errno = EAGAIN; |
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102 | } |
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103 | |
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104 | return -1; |
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105 | } |
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106 | |
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107 | int cf_sndfile_write(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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108 | return -1; |
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109 | } |
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110 | |
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111 | #endif |
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112 | |
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113 | //ll |
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