[371] | 1 | //codecfilter_speex.c: |
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| 2 | |
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[668] | 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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[371] | 25 | #include "roard.h" |
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| 26 | #ifdef ROAR_HAVE_LIBSPEEX |
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| 27 | |
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[620] | 28 | /* |
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| 29 | Format: |
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| 30 | (all numbers are in network byte order) |
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| 31 | |
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| 32 | MAGIC of site MAGIC_LEN |
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| 33 | MODE NUMMBER of size 2 Byte |
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| 34 | { // frames |
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| 35 | FRAME LENGTH of size 2 Byte |
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| 36 | FRAME DATA of size FRAME LENGTH Byte |
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| 37 | } |
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| 38 | */ |
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| 39 | |
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[2308] | 40 | #define _FS (_16BIT * (self->stereo ? 2 : 1)) |
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| 41 | |
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[2975] | 42 | #define _HAVE_CCFG(x) (self->codec_config != NULL && (self->codec_config->para_set & (x))) |
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| 43 | |
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[373] | 44 | int cf_speex_open(CODECFILTER_USERDATA_T * inst, int codec, |
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| 45 | struct roar_stream_server * info, |
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| 46 | struct roar_codecfilter * filter) { |
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[391] | 47 | struct codecfilter_speex_inst * self = malloc(sizeof(struct codecfilter_speex_inst)); |
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[609] | 48 | struct roar_stream * s = ROAR_STREAM(info); |
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[391] | 49 | |
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[373] | 50 | *inst = NULL; |
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[391] | 51 | |
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| 52 | if (!self) |
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| 53 | return -1; |
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| 54 | |
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[2308] | 55 | s->info.codec = ROAR_CODEC_DEFAULT; |
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| 56 | s->info.bits = 16; // speex hardcoded |
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| 57 | |
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| 58 | switch (s->info.channels) { |
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| 59 | case 1: self->stereo = 0; break; |
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| 60 | case 2: self->stereo = 1; break; |
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| 61 | default: |
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| 62 | free(self); |
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| 63 | return -1; |
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| 64 | } |
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| 65 | |
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| 66 | // do as much to preper the startup of stereo encoder as possible |
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| 67 | if ( self->stereo ) { |
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| 68 | self->stereo_callback.callback_id = SPEEX_INBAND_STEREO; |
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| 69 | self->stereo_callback.func = speex_std_stereo_request_handler; |
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| 70 | self->stereo_callback.data = &(self->stereo_state); |
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| 71 | } |
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| 72 | |
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[392] | 73 | self->encoder = NULL; |
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| 74 | self->decoder = NULL; |
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| 75 | |
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[393] | 76 | self->stream = info; |
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| 77 | |
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[395] | 78 | self->cd = NULL; |
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| 79 | |
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| 80 | self->i_rest = NULL; |
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| 81 | self->fi_rest = 0; |
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[617] | 82 | self->o_rest = NULL; |
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| 83 | self->fo_rest = 0; |
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[395] | 84 | |
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[2973] | 85 | self->codec_config = roar_libroar_config_codec_get(ROAR_CODEC_ROAR_SPEEX, 0); |
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| 86 | |
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[392] | 87 | speex_bits_init(&(self->bits)); |
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| 88 | |
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[391] | 89 | *inst = (void*) self; |
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| 90 | |
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| 91 | return 0; |
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[373] | 92 | } |
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| 93 | |
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| 94 | int cf_speex_close(CODECFILTER_USERDATA_T inst) { |
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[391] | 95 | struct codecfilter_speex_inst * self = (struct codecfilter_speex_inst *) inst; |
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| 96 | |
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| 97 | if (!self) |
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| 98 | return -1; |
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| 99 | |
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[392] | 100 | if ( self->encoder ) |
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[616] | 101 | speex_encoder_destroy(self->encoder); |
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[392] | 102 | |
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| 103 | self->encoder = NULL; |
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| 104 | |
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| 105 | if ( self->decoder ) |
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| 106 | speex_decoder_destroy(self->decoder); |
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| 107 | |
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| 108 | self->decoder = NULL; |
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| 109 | |
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| 110 | speex_bits_destroy(&(self->bits)); |
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| 111 | |
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[395] | 112 | if ( self->cd ) |
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| 113 | free(self->cd); |
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| 114 | |
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| 115 | if ( self->i_rest ) |
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| 116 | free(self->i_rest); |
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| 117 | |
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[391] | 118 | free((void*)self); |
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| 119 | |
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| 120 | return 0; |
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[373] | 121 | } |
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| 122 | |
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| 123 | int cf_speex_read(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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[391] | 124 | struct codecfilter_speex_inst * self = (struct codecfilter_speex_inst *) inst; |
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[393] | 125 | int mode; |
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| 126 | uint16_t ui; |
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[395] | 127 | int tmp; |
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[2308] | 128 | int still_todo = len / _FS; |
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[395] | 129 | int ret = 0; |
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[2308] | 130 | int fs2; // = self->frame_size * _16BIT * channels; |
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[614] | 131 | char magic[ROAR_SPEEX_MAGIC_LEN]; |
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[2308] | 132 | SpeexStereoState stereo = SPEEX_STEREO_STATE_INIT; |
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[393] | 133 | |
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[614] | 134 | ROAR_DBG("cf_speex_read(inst=%p, buf=%p, len=%i) = ?", inst, buf, len); |
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[396] | 135 | |
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[393] | 136 | if ( ! self->decoder ) { |
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[395] | 137 | ROAR_DBG("cf_speex_read(*): no decoder, starting one!"); |
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[614] | 138 | |
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| 139 | if ( stream_vio_s_read(self->stream, magic, ROAR_SPEEX_MAGIC_LEN) != ROAR_SPEEX_MAGIC_LEN ) |
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| 140 | return 0; |
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| 141 | |
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| 142 | if ( memcmp(magic, ROAR_SPEEX_MAGIC, ROAR_SPEEX_MAGIC_LEN) != 0 ) |
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| 143 | return -1; |
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| 144 | |
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[608] | 145 | if ( stream_vio_s_read(self->stream, &ui, 2) != 2 ) |
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[393] | 146 | return 0; |
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| 147 | |
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[2309] | 148 | mode = ROAR_NET2HOST16(ui); |
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[393] | 149 | |
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[2967] | 150 | switch (mode) { |
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| 151 | case ROAR_SPEEX_MODE_NB: self->decoder = speex_decoder_init(&speex_nb_mode); break; |
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| 152 | case ROAR_SPEEX_MODE_WB: self->decoder = speex_decoder_init(&speex_wb_mode); break; |
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| 153 | case ROAR_SPEEX_MODE_UWB: self->decoder = speex_decoder_init(&speex_uwb_mode); break; |
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| 154 | default: return 0; |
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[393] | 155 | } |
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[395] | 156 | |
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| 157 | tmp=1; |
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| 158 | speex_decoder_ctl(self->decoder, SPEEX_SET_ENH, &tmp); |
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| 159 | |
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[2308] | 160 | if ( self->stereo ) { |
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| 161 | memcpy(&(self->stereo_state), &stereo, sizeof(self->stereo_state)); |
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| 162 | speex_decoder_ctl(self->decoder, SPEEX_SET_HANDLER, &(self->stereo_callback)); |
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| 163 | } |
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| 164 | |
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| 165 | |
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[395] | 166 | speex_decoder_ctl(self->decoder, SPEEX_GET_FRAME_SIZE, &(self->frame_size)); |
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| 167 | |
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[2308] | 168 | fs2 = self->frame_size * _FS; |
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[395] | 169 | |
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[614] | 170 | ROAR_DBG("cf_speex_read(*): frame_size=%i (%i bytes)", self->frame_size, fs2); |
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[395] | 171 | |
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| 172 | if ( !self->cd ) { |
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[614] | 173 | self->cd = malloc(fs2); |
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[395] | 174 | if ( !self->cd ) |
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| 175 | return 0; |
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| 176 | } |
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| 177 | |
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| 178 | if ( !self->i_rest ) { |
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[614] | 179 | self->i_rest = malloc(fs2); |
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[395] | 180 | if ( !self->i_rest ) |
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| 181 | return 0; |
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| 182 | } |
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[393] | 183 | } |
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[2308] | 184 | fs2 = self->frame_size * _FS; |
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[391] | 185 | |
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[396] | 186 | ROAR_DBG("cf_speex_read(*): Have a working decoder!"); |
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[395] | 187 | |
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[614] | 188 | ROAR_DBG("cf_speex_read(*): frame_size=%i (%i bytes)", self->frame_size, fs2); |
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[396] | 189 | ROAR_DBG("cf_speex_read(*): i_rest is %i bytes after cd", ((void*)self->i_rest - (void*)self->cd)); |
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[395] | 190 | |
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| 191 | |
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| 192 | if ( self->fi_rest ) { |
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[2308] | 193 | if ( self->fi_rest > (still_todo*_FS) ) { |
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[614] | 194 | ROAR_DBG("cf_speex_read(*): using data from input rest buffer: len=%i (no need to read new data)", self->fi_rest); |
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[2308] | 195 | still_todo *= _FS; // we will set this to zero one way or another, |
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| 196 | // so we don't need to care about soring a 'wrong' value here. |
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[614] | 197 | memcpy(buf, self->i_rest, still_todo); |
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| 198 | memmove(self->i_rest, self->i_rest + still_todo, self->fi_rest - still_todo); |
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| 199 | self->fi_rest -= still_todo; |
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| 200 | ret += still_todo; |
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| 201 | still_todo = 0; |
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[395] | 202 | } else { |
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[614] | 203 | ROAR_DBG("cf_speex_read(*): using data from input rest buffer: len=%i", self->fi_rest); |
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[395] | 204 | memcpy(buf, self->i_rest, self->fi_rest); |
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| 205 | buf += self->fi_rest; |
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[2308] | 206 | still_todo -= self->fi_rest/_FS; |
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[396] | 207 | ret += self->fi_rest; |
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[395] | 208 | self->fi_rest = 0; |
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| 209 | } |
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| 210 | } |
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| 211 | |
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| 212 | while (still_todo) { |
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[614] | 213 | ROAR_DBG("cf_speex_read(*): we sill need %i frames", still_todo); |
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[608] | 214 | if ( stream_vio_s_read(self->stream, &ui, 2) != 2 ) |
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[395] | 215 | return -1; |
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| 216 | |
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[2309] | 217 | ui = ROAR_NET2HOST16(ui); |
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[395] | 218 | |
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| 219 | if ( ui > ROAR_SPEEX_MAX_CC ) |
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| 220 | return 0; |
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| 221 | |
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[608] | 222 | if ( stream_vio_s_read(self->stream, self->cc, ui) != ui ) |
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[395] | 223 | break; |
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| 224 | |
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| 225 | speex_bits_read_from(&(self->bits), self->cc, ui); |
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| 226 | |
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| 227 | speex_decode_int(self->decoder, &(self->bits), self->cd); |
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| 228 | |
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[2308] | 229 | if ( self->stereo) { |
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| 230 | speex_decode_stereo_int(self->cd, self->frame_size, &(self->stereo_state)); |
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| 231 | } |
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| 232 | |
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[395] | 233 | if ( self->frame_size > still_todo ) { |
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[2308] | 234 | memcpy(buf, self->cd, still_todo*_FS); |
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| 235 | ret += still_todo*_FS; |
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| 236 | self->fi_rest = (self->frame_size - still_todo)*_FS; |
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| 237 | ROAR_DBG("cf_speex_read(*): self->fi_rest=%i, off=%i", self->fi_rest, still_todo*_FS); |
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| 238 | memcpy(self->i_rest, (self->cd)+(still_todo*_FS), self->fi_rest); |
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[395] | 239 | still_todo = 0; |
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| 240 | } else { |
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[614] | 241 | memcpy(buf, self->cd, fs2); |
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| 242 | buf += fs2; |
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| 243 | ret += fs2; |
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[395] | 244 | still_todo -= self->frame_size; |
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| 245 | } |
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| 246 | } |
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| 247 | |
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[396] | 248 | if ( still_todo ) { |
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[2308] | 249 | ROAR_DBG("cf_speex_read(*): could not read all reqquested data, returning %i byte less", still_todo*_FS); |
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[396] | 250 | } |
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| 251 | |
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[614] | 252 | ROAR_DBG("cf_speex_read(*) = %i", ret); |
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[396] | 253 | |
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[395] | 254 | return ret; |
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[373] | 255 | } |
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[393] | 256 | |
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[373] | 257 | int cf_speex_write(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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[391] | 258 | struct codecfilter_speex_inst * self = (struct codecfilter_speex_inst *) inst; |
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[615] | 259 | uint16_t mode = ROAR_SPEEX_MODE_UWB; |
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| 260 | int tmp; |
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[617] | 261 | int fs2; |
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| 262 | int ret = 0; |
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| 263 | int need_extra; |
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[2816] | 264 | int sid; |
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| 265 | void * prethru; |
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[615] | 266 | |
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[620] | 267 | /* |
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| 268 | TODO: Befor this realy works there must be a working way to set the number of channels and bits |
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| 269 | for monetoring clients. Else this will produce some thing stange as a 'mono' file that realy |
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| 270 | contains stereo. |
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| 271 | */ |
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| 272 | |
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[619] | 273 | ROAR_DBG("cf_speex_write(inst=%p, buf=%p, len=%i) = ?", inst, buf, len); |
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| 274 | |
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[615] | 275 | if ( ! self->encoder ) { |
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[2816] | 276 | sid = ROAR_STREAM(self->stream)->id; |
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| 277 | |
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| 278 | if ( stream_prethru_destroy(sid) == -1 ) { |
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| 279 | return -1; |
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| 280 | } |
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| 281 | |
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| 282 | if ( stream_prethru_add_data(sid, &prethru, ROAR_SPEEX_MAGIC_LEN) == -1 ) { |
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| 283 | return -1; |
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| 284 | } |
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| 285 | |
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| 286 | memcpy(prethru, ROAR_SPEEX_MAGIC, ROAR_SPEEX_MAGIC_LEN); |
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| 287 | |
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[615] | 288 | if ( stream_vio_s_write(self->stream, ROAR_SPEEX_MAGIC, ROAR_SPEEX_MAGIC_LEN) != ROAR_SPEEX_MAGIC_LEN ) |
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| 289 | return -1; |
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| 290 | |
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[2972] | 291 | switch (mode) { |
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| 292 | case ROAR_SPEEX_MODE_NB: self->encoder = speex_encoder_init(&speex_nb_mode); break; |
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| 293 | case ROAR_SPEEX_MODE_WB: self->encoder = speex_encoder_init(&speex_wb_mode); break; |
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| 294 | case ROAR_SPEEX_MODE_UWB: self->encoder = speex_encoder_init(&speex_uwb_mode); break; |
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| 295 | default: return -1; |
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[615] | 296 | } |
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| 297 | |
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| 298 | mode = ROAR_HOST2NET16(mode); |
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| 299 | |
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[2816] | 300 | if ( stream_prethru_add_data(sid, &prethru, 2) == -1 ) { |
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| 301 | return -1; |
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| 302 | } |
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| 303 | |
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| 304 | *(uint16_t*)prethru = mode; |
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| 305 | |
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[615] | 306 | if ( stream_vio_s_write(self->stream, &mode, 2) != 2 ) |
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| 307 | return -1; |
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| 308 | |
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[2975] | 309 | if ( _HAVE_CCFG(ROAR_LIBROAR_CONFIG_PSET_COMPLEXITY) ) { |
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| 310 | tmp = self->codec_config->complexity / 256; |
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| 311 | } else { |
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| 312 | tmp = 8; |
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| 313 | } |
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| 314 | speex_encoder_ctl(self->encoder, SPEEX_SET_COMPLEXITY, &tmp); |
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| 315 | |
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| 316 | if ( _HAVE_CCFG(ROAR_LIBROAR_CONFIG_PSET_Q) ) { |
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| 317 | tmp = self->codec_config->q / 256; |
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| 318 | speex_encoder_ctl(self->encoder, SPEEX_SET_QUALITY, &tmp); |
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| 319 | } |
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| 320 | |
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| 321 | if ( _HAVE_CCFG(ROAR_LIBROAR_CONFIG_PSET_VBR) ) { |
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| 322 | tmp = self->codec_config->vbr ? 1 : 0; |
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| 323 | speex_encoder_ctl(self->encoder, SPEEX_SET_VBR, &tmp); |
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| 324 | } |
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| 325 | |
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| 326 | if ( _HAVE_CCFG(ROAR_LIBROAR_CONFIG_PSET_DTX) ) { |
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| 327 | tmp = self->codec_config->dtx ? 1 : 0; |
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| 328 | speex_encoder_ctl(self->encoder, SPEEX_SET_DTX, &tmp); |
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| 329 | } |
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| 330 | |
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[615] | 331 | speex_encoder_ctl(self->encoder, SPEEX_GET_FRAME_SIZE, &(self->frame_size)); |
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| 332 | |
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[2310] | 333 | fs2 = self->frame_size * _FS; |
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[617] | 334 | |
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| 335 | if ( !self->cd ) { |
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[2901] | 336 | self->cd = malloc(fs2 + 2); |
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[617] | 337 | if ( !self->cd ) |
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| 338 | return 0; |
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| 339 | } |
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| 340 | |
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| 341 | if ( !self->o_rest ) { |
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| 342 | self->o_rest = malloc(fs2); |
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| 343 | if ( !self->o_rest ) |
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| 344 | return 0; |
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| 345 | } |
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[615] | 346 | } |
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[391] | 347 | |
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[2310] | 348 | fs2 = self->frame_size * _FS; |
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[617] | 349 | |
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| 350 | if ( self->fo_rest ) { // ignore the rest for the moment |
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| 351 | if ( (self->fo_rest + len) > fs2 ) { |
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| 352 | need_extra = fs2 - self->fo_rest; |
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| 353 | memcpy(self->o_rest + self->fo_rest, buf, need_extra); |
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| 354 | |
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| 355 | speex_bits_reset(&(self->bits)); |
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| 356 | |
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[2310] | 357 | if ( self->stereo ) |
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| 358 | speex_encode_stereo_int((spx_int16_t *) self->o_rest, self->frame_size, &(self->bits)); |
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| 359 | |
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[617] | 360 | speex_encode_int(self->encoder, (spx_int16_t *) self->o_rest, &(self->bits)); |
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| 361 | |
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[2901] | 362 | tmp = mode = speex_bits_write(&(self->bits), self->cd + 2, fs2); |
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[617] | 363 | |
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[618] | 364 | mode = ROAR_HOST2NET16(mode); |
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[2901] | 365 | *(uint16_t*)(self->cd) = mode; |
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| 366 | if ( stream_vio_s_write(self->stream, self->cd, tmp + 2) != (tmp + 2) ) |
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[617] | 367 | return -1; |
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| 368 | |
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| 369 | buf += need_extra; |
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| 370 | ret += need_extra; |
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| 371 | len -= need_extra; |
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| 372 | self->fo_rest = 0; |
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| 373 | } else { // just add the data to o_rest |
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| 374 | memcpy(self->o_rest + self->fo_rest, buf, len); |
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| 375 | self->fo_rest += len; |
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| 376 | return len; |
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| 377 | } |
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| 378 | } |
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| 379 | |
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| 380 | // TODO: do we realy need such a loop? |
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| 381 | while (len > fs2) { |
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[619] | 382 | // ROAR_WARN("cf_speex_write(*): Discarding a full block of data as non-o_rest encoding is not supported!"); |
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| 383 | // ROAR_WARN("cf_speex_write(*): Block info: len=%i, fs2=%i", len, fs2); |
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| 384 | |
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| 385 | speex_bits_reset(&(self->bits)); |
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| 386 | |
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[2310] | 387 | if ( self->stereo ) |
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| 388 | speex_encode_stereo_int((spx_int16_t *) buf, self->frame_size, &(self->bits)); |
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| 389 | |
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[619] | 390 | speex_encode_int(self->encoder, (spx_int16_t *) buf, &(self->bits)); |
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| 391 | |
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[2901] | 392 | tmp = mode = speex_bits_write(&(self->bits), self->cd + 2, fs2); |
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[619] | 393 | |
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| 394 | mode = ROAR_HOST2NET16(mode); |
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| 395 | |
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[2901] | 396 | *(uint16_t*)(self->cd) = mode; |
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[619] | 397 | |
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[2901] | 398 | if ( stream_vio_s_write(self->stream, self->cd, tmp + 2) != (tmp + 2) ) |
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[619] | 399 | return -1; |
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| 400 | |
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[617] | 401 | len -= fs2; |
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| 402 | buf += fs2; |
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| 403 | ret += fs2; |
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| 404 | } |
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| 405 | |
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| 406 | if ( len ) { // we still have some data, add this to o_rest |
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| 407 | memcpy(self->o_rest, buf, len); |
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| 408 | self->fo_rest = len; |
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| 409 | ret += len; |
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| 410 | } |
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| 411 | |
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| 412 | return ret; |
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[373] | 413 | } |
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| 414 | |
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[371] | 415 | #endif |
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| 416 | |
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| 417 | //ll |
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