[851] | 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 | return -1; |
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| 85 | |
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| 86 | s->info.codec = ROAR_CODEC_DEFAULT; |
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| 87 | s->info.rate = obj->info.samplerate; |
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| 88 | s->info.channels = obj->info.channels; |
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| 89 | |
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| 90 | obj->bytes = 2; |
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| 91 | if ( (obj->info.format & SF_FORMAT_SUBMASK) == SF_FORMAT_PCM_24 || |
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| 92 | (obj->info.format & SF_FORMAT_SUBMASK) == SF_FORMAT_PCM_32 ) { |
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| 93 | obj->bytes = 4; |
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| 94 | } |
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| 95 | |
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| 96 | s->info.bits = obj->bytes * 8; |
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| 97 | |
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| 98 | obj->opened = 1; |
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| 99 | } |
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| 100 | |
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| 101 | return -1; |
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| 102 | } |
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| 103 | |
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| 104 | int cf_sndfile_write(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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| 105 | return -1; |
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| 106 | } |
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| 107 | |
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| 108 | #endif |
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| 109 | |
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| 110 | //ll |
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