[4004] | 1 | //codecfilter_au.c: |
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| 2 | |
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| 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2010 |
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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, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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| 23 | * |
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| 24 | */ |
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| 25 | |
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| 26 | #include "roard.h" |
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| 27 | |
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| 28 | #ifndef ROAR_WITHOUT_CF_AU |
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| 29 | |
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| 30 | int cf_au_open(CODECFILTER_USERDATA_T * inst, int codec, |
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| 31 | struct roar_stream_server * info, |
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| 32 | struct roar_codecfilter * filter) { |
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| 33 | struct codecfilter_au_inst * self = roar_mm_malloc(sizeof(struct codecfilter_au_inst)); |
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| 34 | struct roar_stream * s = ROAR_STREAM(info); |
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| 35 | |
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| 36 | if ( !self ) |
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| 37 | return -1; |
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| 38 | |
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| 39 | self->stream = info; |
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| 40 | self->vstream = NULL; |
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| 41 | self->opened = 0; |
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| 42 | |
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| 43 | *inst = (CODECFILTER_USERDATA_T) self; |
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| 44 | |
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| 45 | memcpy(&(s->info), g_sa, sizeof(struct roar_audio_info)); |
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[4005] | 46 | |
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| 47 | s->info.codec = ROAR_CODEC_PCM_S_BE; |
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| 48 | |
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[4004] | 49 | return 0; |
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| 50 | } |
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| 51 | |
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| 52 | int cf_au_close(CODECFILTER_USERDATA_T inst) { |
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| 53 | // struct codecfilter_au_inst * self = (struct codecfilter_au_inst *) inst; |
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| 54 | |
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| 55 | if ( !inst ) |
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| 56 | return -1; |
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| 57 | |
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| 58 | roar_mm_free(inst); |
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| 59 | return 0; |
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| 60 | } |
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| 61 | |
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| 62 | int cf_au_read(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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| 63 | struct codecfilter_au_inst * self = (struct codecfilter_au_inst *) inst; |
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| 64 | int r = -1; |
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| 65 | char tbuf[ROAR_AU_MIN_HEADER_LEN]; |
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| 66 | uint32_t * header = (uint32_t*)tbuf; |
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| 67 | struct roar_stream * ps = ROAR_STREAM(self->stream); |
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| 68 | struct roar_stream * s; |
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| 69 | struct roar_audio_info info; |
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| 70 | char * extra_header; |
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| 71 | int codec = -1; |
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| 72 | int vid, fh; |
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| 73 | int i; |
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| 74 | |
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| 75 | if ( self->opened ) { |
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| 76 | return stream_vio_s_read(self->stream, buf, len); |
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| 77 | } else { |
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| 78 | if (stream_vio_s_read(self->stream, tbuf, ROAR_AU_MIN_HEADER_LEN) != ROAR_AU_MIN_HEADER_LEN) { |
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| 79 | return -1; |
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| 80 | } |
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| 81 | |
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| 82 | for (i = 0; i < ROAR_AU_MIN_HEADER_LEN/4; i++) { |
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| 83 | header[i] = ROAR_NET2HOST32(header[i]); |
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| 84 | ROAR_DBG("cf_au_read(inst=%p, buf=%p, len=%i): header[%i] = 0x%.8x", inst, buf, len, i, header[i]); |
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| 85 | } |
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| 86 | |
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| 87 | |
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| 88 | // test the header, is this really a AU stream? |
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| 89 | if ( header[0] != ROAR_AU_MAGIC ) |
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| 90 | return -1; |
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| 91 | |
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| 92 | if ( header[1] != ROAR_AU_MIN_HEADER_LEN ) { |
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| 93 | header[1] -= ROAR_AU_MIN_HEADER_LEN; |
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| 94 | |
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| 95 | if ( header[1] > 32*1024 ) // do not allow more than 32KiB header... |
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| 96 | return -1; |
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| 97 | |
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| 98 | if ( (extra_header = roar_mm_malloc(header[1])) == NULL ) |
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| 99 | return -1; |
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| 100 | |
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| 101 | if ( stream_vio_s_read(self->stream, extra_header, header[1]) != header[1] ) { |
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| 102 | roar_mm_free(extra_header); |
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| 103 | return -1; |
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| 104 | } |
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| 105 | |
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| 106 | roar_mm_free(extra_header); |
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| 107 | } |
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| 108 | |
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| 109 | // TODO: write better code here! |
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| 110 | |
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| 111 | if ( (fh = streams_get_fh(ps->id)) == -1 ) { |
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| 112 | return -1; |
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| 113 | } |
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| 114 | |
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| 115 | if ( (vid = streams_new_virtual(ps->id, &(self->vstream))) == -1 ) { |
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| 116 | return -1; |
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| 117 | } |
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| 118 | |
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| 119 | ROAR_DBG("cf_au_read(*): self->vstream=%p", self->vstream); |
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| 120 | |
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| 121 | s = ROAR_STREAM(self->vstream); |
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| 122 | |
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| 123 | s->info.rate = header[4]; |
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| 124 | |
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| 125 | s->info.channels = header[5]; |
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| 126 | |
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| 127 | switch (header[3]) { |
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| 128 | case ROAR_AU_CID_MULAW: |
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| 129 | s->info.bits = 8; |
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| 130 | codec = ROAR_CODEC_MULAW; |
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| 131 | break; |
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| 132 | case ROAR_AU_CID_ALAW: |
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| 133 | s->info.bits = 8; |
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| 134 | codec = ROAR_CODEC_ALAW; |
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| 135 | break; |
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| 136 | case ROAR_AU_CID_PCM_S_8: |
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| 137 | s->info.bits = 8; |
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| 138 | codec = ROAR_CODEC_PCM_S_BE; |
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| 139 | break; |
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| 140 | case ROAR_AU_CID_PCM_S_16: |
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| 141 | s->info.bits = 16; |
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| 142 | codec = ROAR_CODEC_PCM_S_BE; |
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| 143 | break; |
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| 144 | case ROAR_AU_CID_PCM_S_24: |
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| 145 | s->info.bits = 24; |
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| 146 | codec = ROAR_CODEC_PCM_S_BE; |
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| 147 | break; |
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| 148 | case ROAR_AU_CID_PCM_S_32: |
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| 149 | s->info.bits = 32; |
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| 150 | codec = ROAR_CODEC_PCM_S_BE; |
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| 151 | break; |
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| 152 | default: |
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| 153 | return -1; |
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| 154 | } |
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| 155 | |
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| 156 | s->info.codec = codec; |
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| 157 | self->vstream->codec_orgi = codec; |
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| 158 | |
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| 159 | memcpy(&info, &(s->info), sizeof(struct roar_audio_info)); |
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| 160 | |
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| 161 | if ( streams_set_fh(vid, fh) == -1 ) { |
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| 162 | return -1; |
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| 163 | } |
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| 164 | |
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| 165 | /* |
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| 166 | if ( roar_vio_open_pass(&(self->vstream->vio), &(self->stream->vio)) == -1 ) { |
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| 167 | return -1; |
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| 168 | } |
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| 169 | */ |
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| 170 | |
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| 171 | memcpy(&(self->vstream->vio), &(self->stream->vio), sizeof(struct roar_vio_calls)); |
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| 172 | |
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| 173 | if ( streams_set_null_io(ps->id) == -1 ) { |
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| 174 | return -1; |
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| 175 | } |
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| 176 | |
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| 177 | memcpy(&(ps->info), &info, sizeof(struct roar_audio_info)); |
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| 178 | |
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| 179 | self->opened = 1; |
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| 180 | |
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| 181 | errno = EAGAIN; |
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| 182 | return -1; |
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| 183 | } |
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| 184 | |
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| 185 | return r; |
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| 186 | } |
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| 187 | |
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| 188 | int cf_au_write(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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| 189 | struct codecfilter_au_inst * self = (struct codecfilter_au_inst *) inst; |
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| 190 | struct roar_stream * s = ROAR_STREAM(self->stream); |
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| 191 | void * headerdata; |
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| 192 | uint32_t * header; |
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| 193 | uint32_t codec; |
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| 194 | int sid; |
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| 195 | int i; |
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| 196 | |
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| 197 | ROAR_DBG("cf_au_write(inst=%p, buf=%p, len=%i) = ?", inst, buf, len); |
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| 198 | ROAR_DBG("cf_au_write(inst=%p, buf=%p, len=%i): self->opened=%i", inst, buf, len, self->opened); |
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| 199 | |
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| 200 | if ( self->opened ) { |
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| 201 | return stream_vio_s_write(self->stream, buf, len); |
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| 202 | } else { |
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| 203 | |
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| 204 | if ( s->fh == -1 ) { |
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| 205 | errno = EAGAIN; |
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| 206 | return -1; |
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| 207 | } |
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| 208 | |
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| 209 | sid = ROAR_STREAM(self->stream)->id; |
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| 210 | |
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| 211 | if ( stream_prethru_destroy(sid) == -1 ) { |
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| 212 | return -1; |
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| 213 | } |
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| 214 | |
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| 215 | if ( stream_prethru_add_data(sid, &headerdata, ROAR_AU_MIN_HEADER_LEN) == -1 ) { |
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| 216 | return -1; |
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| 217 | } |
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| 218 | |
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| 219 | header = headerdata; |
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| 220 | |
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| 221 | switch (s->info.codec) { |
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| 222 | case ROAR_CODEC_PCM_S_BE: |
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| 223 | switch (s->info.bits) { |
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| 224 | case 8: codec = ROAR_AU_CID_PCM_S_8; break; |
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| 225 | case 16: codec = ROAR_AU_CID_PCM_S_16; break; |
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| 226 | case 24: codec = ROAR_AU_CID_PCM_S_24; break; |
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| 227 | case 32: codec = ROAR_AU_CID_PCM_S_32; break; |
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| 228 | default: |
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| 229 | ROAR_ERR("cf_au_write(*) bits per sample not supported!"); |
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| 230 | return -1; |
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| 231 | break; |
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| 232 | } |
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| 233 | break; |
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| 234 | default: |
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| 235 | ROAR_ERR("cf_au_write(*) Codec not supported!: %s(%i)", roar_codec2str(s->info.codec), s->info.codec); |
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| 236 | return -1; |
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| 237 | break; |
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| 238 | } |
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| 239 | |
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| 240 | ROAR_DBG("cf_au_write(*) Codec supported!"); |
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| 241 | |
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| 242 | header[0] = ROAR_AU_MAGIC; |
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| 243 | header[1] = ROAR_AU_MIN_HEADER_LEN; |
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| 244 | header[2] = ROAR_AU_DATASIZE; |
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| 245 | header[3] = codec; |
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| 246 | header[4] = s->info.rate; |
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| 247 | header[5] = s->info.channels; |
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| 248 | |
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| 249 | for (i = 0; i < ROAR_AU_MIN_HEADER_LEN/4; i++) |
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| 250 | header[i] = ROAR_HOST2NET32(header[i]); |
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| 251 | |
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| 252 | if ( stream_vio_s_write(self->stream, header, ROAR_AU_MIN_HEADER_LEN) != ROAR_AU_MIN_HEADER_LEN ) |
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| 253 | return -1; |
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| 254 | |
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| 255 | self->opened = 1; |
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| 256 | |
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| 257 | errno = EAGAIN; |
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| 258 | // return -1; |
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| 259 | |
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| 260 | len = stream_vio_s_write(self->stream, buf, len); |
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| 261 | |
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| 262 | cf_au_close(inst); |
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| 263 | ROAR_STREAM_SERVER(s)->codecfilter = -1; |
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| 264 | |
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| 265 | return len; |
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| 266 | |
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| 267 | // return stream_vio_s_write(self->stream, buf, len); |
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| 268 | } |
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| 269 | |
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| 270 | return -1; |
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| 271 | } |
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| 272 | |
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| 273 | int cf_au_ctl(CODECFILTER_USERDATA_T inst, int cmd, void * data) { |
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| 274 | struct codecfilter_au_inst * self = (struct codecfilter_au_inst *) inst; |
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| 275 | int_least32_t type = cmd & ROAR_STREAM_CTL_TYPEMASK; |
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| 276 | |
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| 277 | cmd -= type; |
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| 278 | |
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| 279 | ROAR_DBG("cf_au_ctl(*): command: cmd=0x%.8x, type=0x%.8x, pcmd=0x%.8x", |
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| 280 | cmd, type, ROAR_CODECFILTER_CTL2CMD(cmd)); |
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| 281 | |
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| 282 | switch (cmd) { |
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| 283 | case ROAR_CODECFILTER_CTL2CMD(ROAR_CODECFILTER_CTL_VIRTUAL_DELETE): |
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| 284 | streams_delete(ROAR_STREAM(self->stream)->id); |
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| 285 | return 0; |
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| 286 | break; |
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| 287 | default: |
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| 288 | ROAR_DBG("cf_au_ctl(*): Unknown command: cmd=0x%.8x, type=0x%.8x, pcmd=0x%.8x", |
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| 289 | cmd, type, ROAR_CODECFILTER_CTL2CMD(cmd)); |
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| 290 | return -1; |
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| 291 | } |
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| 292 | |
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| 293 | return -1; |
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| 294 | } |
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| 295 | |
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| 296 | #endif |
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| 297 | |
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| 298 | //ll |
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