[371] | 1 | //codecfilter_speex.c: |
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| 2 | |
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| 3 | #include "roard.h" |
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| 4 | #ifdef ROAR_HAVE_LIBSPEEX |
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| 5 | |
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[620] | 6 | /* |
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| 7 | Format: |
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| 8 | (all numbers are in network byte order) |
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| 9 | |
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| 10 | MAGIC of site MAGIC_LEN |
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| 11 | MODE NUMMBER of size 2 Byte |
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| 12 | { // frames |
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| 13 | FRAME LENGTH of size 2 Byte |
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| 14 | FRAME DATA of size FRAME LENGTH Byte |
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| 15 | } |
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| 16 | */ |
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| 17 | |
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[373] | 18 | int cf_speex_open(CODECFILTER_USERDATA_T * inst, int codec, |
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| 19 | struct roar_stream_server * info, |
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| 20 | struct roar_codecfilter * filter) { |
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[391] | 21 | struct codecfilter_speex_inst * self = malloc(sizeof(struct codecfilter_speex_inst)); |
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[609] | 22 | struct roar_stream * s = ROAR_STREAM(info); |
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[391] | 23 | |
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[373] | 24 | *inst = NULL; |
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[391] | 25 | |
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| 26 | if (!self) |
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| 27 | return -1; |
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| 28 | |
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[392] | 29 | self->encoder = NULL; |
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| 30 | self->decoder = NULL; |
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| 31 | |
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[393] | 32 | self->stream = info; |
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| 33 | |
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[395] | 34 | self->cd = NULL; |
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| 35 | |
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| 36 | self->i_rest = NULL; |
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| 37 | self->fi_rest = 0; |
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[617] | 38 | self->o_rest = NULL; |
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| 39 | self->fo_rest = 0; |
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[395] | 40 | |
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[392] | 41 | speex_bits_init(&(self->bits)); |
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| 42 | |
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[395] | 43 | s->info.codec = ROAR_CODEC_DEFAULT; |
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| 44 | s->info.bits = 16; // speex hardcoded |
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[614] | 45 | s->info.channels = 1; // only mono support at the moment |
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[395] | 46 | |
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[391] | 47 | *inst = (void*) self; |
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| 48 | |
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| 49 | return 0; |
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[373] | 50 | } |
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| 51 | |
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| 52 | int cf_speex_close(CODECFILTER_USERDATA_T inst) { |
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[391] | 53 | struct codecfilter_speex_inst * self = (struct codecfilter_speex_inst *) inst; |
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| 54 | |
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| 55 | if (!self) |
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| 56 | return -1; |
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| 57 | |
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[392] | 58 | if ( self->encoder ) |
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[616] | 59 | speex_encoder_destroy(self->encoder); |
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[392] | 60 | |
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| 61 | self->encoder = NULL; |
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| 62 | |
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| 63 | if ( self->decoder ) |
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| 64 | speex_decoder_destroy(self->decoder); |
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| 65 | |
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| 66 | self->decoder = NULL; |
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| 67 | |
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| 68 | speex_bits_destroy(&(self->bits)); |
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| 69 | |
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[395] | 70 | if ( self->cd ) |
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| 71 | free(self->cd); |
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| 72 | |
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| 73 | if ( self->i_rest ) |
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| 74 | free(self->i_rest); |
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| 75 | |
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[391] | 76 | free((void*)self); |
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| 77 | |
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| 78 | return 0; |
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[373] | 79 | } |
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| 80 | |
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| 81 | int cf_speex_read(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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[391] | 82 | struct codecfilter_speex_inst * self = (struct codecfilter_speex_inst *) inst; |
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[393] | 83 | int mode; |
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| 84 | uint16_t ui; |
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[395] | 85 | int tmp; |
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| 86 | int still_todo = len / 2 /* 16 bit */; |
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| 87 | int ret = 0; |
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[614] | 88 | int fs2; // = self->frame_size * 2; |
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| 89 | char magic[ROAR_SPEEX_MAGIC_LEN]; |
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[393] | 90 | |
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[614] | 91 | ROAR_DBG("cf_speex_read(inst=%p, buf=%p, len=%i) = ?", inst, buf, len); |
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[396] | 92 | |
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[393] | 93 | if ( ! self->decoder ) { |
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[395] | 94 | ROAR_DBG("cf_speex_read(*): no decoder, starting one!"); |
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[614] | 95 | |
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| 96 | if ( stream_vio_s_read(self->stream, magic, ROAR_SPEEX_MAGIC_LEN) != ROAR_SPEEX_MAGIC_LEN ) |
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| 97 | return 0; |
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| 98 | |
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| 99 | if ( memcmp(magic, ROAR_SPEEX_MAGIC, ROAR_SPEEX_MAGIC_LEN) != 0 ) |
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| 100 | return -1; |
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| 101 | |
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[608] | 102 | if ( stream_vio_s_read(self->stream, &ui, 2) != 2 ) |
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[393] | 103 | return 0; |
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| 104 | |
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| 105 | mode = ntohs(ui); |
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| 106 | |
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| 107 | if ( mode == ROAR_SPEEX_MODE_NB ) { |
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| 108 | self->decoder = speex_decoder_init(&speex_nb_mode); |
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| 109 | } else if ( mode == ROAR_SPEEX_MODE_WB ) { |
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| 110 | self->decoder = speex_decoder_init(&speex_wb_mode); |
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| 111 | } else if ( mode == ROAR_SPEEX_MODE_UWB ) { |
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| 112 | self->decoder = speex_decoder_init(&speex_uwb_mode); |
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| 113 | } else { |
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| 114 | return 0; |
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| 115 | } |
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[395] | 116 | |
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| 117 | tmp=1; |
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| 118 | speex_decoder_ctl(self->decoder, SPEEX_SET_ENH, &tmp); |
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| 119 | |
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| 120 | speex_decoder_ctl(self->decoder, SPEEX_GET_FRAME_SIZE, &(self->frame_size)); |
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| 121 | |
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[614] | 122 | fs2 = self->frame_size * 2; |
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[395] | 123 | |
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[614] | 124 | ROAR_DBG("cf_speex_read(*): frame_size=%i (%i bytes)", self->frame_size, fs2); |
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[395] | 125 | |
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| 126 | if ( !self->cd ) { |
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[614] | 127 | self->cd = malloc(fs2); |
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[395] | 128 | if ( !self->cd ) |
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| 129 | return 0; |
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| 130 | } |
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| 131 | |
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| 132 | if ( !self->i_rest ) { |
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[614] | 133 | self->i_rest = malloc(fs2); |
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[395] | 134 | if ( !self->i_rest ) |
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| 135 | return 0; |
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| 136 | } |
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[393] | 137 | } |
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[614] | 138 | fs2 = self->frame_size * 2; |
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[391] | 139 | |
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[396] | 140 | ROAR_DBG("cf_speex_read(*): Have a working decoder!"); |
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[395] | 141 | |
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[614] | 142 | ROAR_DBG("cf_speex_read(*): frame_size=%i (%i bytes)", self->frame_size, fs2); |
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[396] | 143 | ROAR_DBG("cf_speex_read(*): i_rest is %i bytes after cd", ((void*)self->i_rest - (void*)self->cd)); |
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[395] | 144 | |
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| 145 | |
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| 146 | if ( self->fi_rest ) { |
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[397] | 147 | if ( self->fi_rest > (still_todo*2) ) { |
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[614] | 148 | 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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| 149 | still_todo *= 2; // we will set this to zero one way or another, |
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| 150 | // so we don't need to care about soring a 'warong' value here. |
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| 151 | memcpy(buf, self->i_rest, still_todo); |
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| 152 | memmove(self->i_rest, self->i_rest + still_todo, self->fi_rest - still_todo); |
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| 153 | self->fi_rest -= still_todo; |
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| 154 | ret += still_todo; |
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| 155 | still_todo = 0; |
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[395] | 156 | } else { |
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[614] | 157 | ROAR_DBG("cf_speex_read(*): using data from input rest buffer: len=%i", self->fi_rest); |
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[395] | 158 | memcpy(buf, self->i_rest, self->fi_rest); |
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| 159 | buf += self->fi_rest; |
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[396] | 160 | still_todo -= self->fi_rest/2; |
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| 161 | ret += self->fi_rest; |
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[395] | 162 | self->fi_rest = 0; |
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| 163 | } |
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| 164 | } |
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| 165 | |
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| 166 | while (still_todo) { |
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[614] | 167 | ROAR_DBG("cf_speex_read(*): we sill need %i frames", still_todo); |
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[608] | 168 | if ( stream_vio_s_read(self->stream, &ui, 2) != 2 ) |
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[395] | 169 | return -1; |
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| 170 | |
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| 171 | ui = ntohs(ui); |
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| 172 | |
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| 173 | if ( ui > ROAR_SPEEX_MAX_CC ) |
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| 174 | return 0; |
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| 175 | |
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[608] | 176 | if ( stream_vio_s_read(self->stream, self->cc, ui) != ui ) |
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[395] | 177 | break; |
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| 178 | |
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| 179 | speex_bits_read_from(&(self->bits), self->cc, ui); |
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| 180 | |
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| 181 | speex_decode_int(self->decoder, &(self->bits), self->cd); |
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| 182 | |
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| 183 | if ( self->frame_size > still_todo ) { |
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| 184 | memcpy(buf, self->cd, still_todo*2); |
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| 185 | ret += still_todo*2; |
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| 186 | self->fi_rest = (self->frame_size - still_todo)*2; |
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[614] | 187 | ROAR_DBG("cf_speex_read(*): self->fi_rest=%i, off=%i", self->fi_rest, still_todo*2); |
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[395] | 188 | memcpy(self->i_rest, (self->cd)+(still_todo*2), self->fi_rest); |
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| 189 | still_todo = 0; |
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| 190 | } else { |
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[614] | 191 | memcpy(buf, self->cd, fs2); |
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| 192 | buf += fs2; |
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| 193 | ret += fs2; |
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[395] | 194 | still_todo -= self->frame_size; |
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| 195 | } |
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| 196 | } |
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| 197 | |
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[396] | 198 | if ( still_todo ) { |
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[614] | 199 | ROAR_DBG("cf_speex_read(*): could not read all reqquested data, returning %i byte less", still_todo*2); |
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[396] | 200 | } |
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| 201 | |
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[614] | 202 | ROAR_DBG("cf_speex_read(*) = %i", ret); |
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[396] | 203 | |
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[395] | 204 | return ret; |
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[373] | 205 | } |
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[393] | 206 | |
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[373] | 207 | int cf_speex_write(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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[391] | 208 | struct codecfilter_speex_inst * self = (struct codecfilter_speex_inst *) inst; |
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[615] | 209 | uint16_t mode = ROAR_SPEEX_MODE_UWB; |
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| 210 | int tmp; |
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[617] | 211 | int fs2; |
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| 212 | int ret = 0; |
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| 213 | int need_extra; |
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[615] | 214 | |
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[620] | 215 | /* |
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| 216 | TODO: Befor this realy works there must be a working way to set the number of channels and bits |
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| 217 | for monetoring clients. Else this will produce some thing stange as a 'mono' file that realy |
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| 218 | contains stereo. |
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| 219 | */ |
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| 220 | |
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[619] | 221 | ROAR_DBG("cf_speex_write(inst=%p, buf=%p, len=%i) = ?", inst, buf, len); |
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| 222 | |
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[615] | 223 | if ( ! self->encoder ) { |
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| 224 | if ( stream_vio_s_write(self->stream, ROAR_SPEEX_MAGIC, ROAR_SPEEX_MAGIC_LEN) != ROAR_SPEEX_MAGIC_LEN ) |
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| 225 | return -1; |
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| 226 | |
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| 227 | if ( mode == ROAR_SPEEX_MODE_NB ) { |
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| 228 | self->encoder = speex_encoder_init(&speex_nb_mode); |
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| 229 | } else if ( mode == ROAR_SPEEX_MODE_WB ) { |
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| 230 | self->encoder = speex_encoder_init(&speex_wb_mode); |
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| 231 | } else if ( mode == ROAR_SPEEX_MODE_UWB ) { |
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| 232 | self->encoder = speex_encoder_init(&speex_uwb_mode); |
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| 233 | } |
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| 234 | |
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| 235 | mode = ROAR_HOST2NET16(mode); |
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| 236 | |
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| 237 | if ( stream_vio_s_write(self->stream, &mode, 2) != 2 ) |
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| 238 | return -1; |
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| 239 | |
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| 240 | tmp = 8; |
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| 241 | speex_encoder_ctl(self->encoder, SPEEX_SET_QUALITY, &tmp); |
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| 242 | speex_encoder_ctl(self->encoder, SPEEX_GET_FRAME_SIZE, &(self->frame_size)); |
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| 243 | |
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[617] | 244 | fs2 = self->frame_size * 2; |
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| 245 | |
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| 246 | if ( !self->cd ) { |
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| 247 | self->cd = malloc(fs2); |
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| 248 | if ( !self->cd ) |
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| 249 | return 0; |
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| 250 | } |
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| 251 | |
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| 252 | if ( !self->o_rest ) { |
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| 253 | self->o_rest = malloc(fs2); |
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| 254 | if ( !self->o_rest ) |
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| 255 | return 0; |
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| 256 | } |
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[615] | 257 | } |
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[391] | 258 | |
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[617] | 259 | fs2 = self->frame_size * 2; |
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| 260 | |
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| 261 | if ( self->fo_rest ) { // ignore the rest for the moment |
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| 262 | if ( (self->fo_rest + len) > fs2 ) { |
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| 263 | need_extra = fs2 - self->fo_rest; |
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| 264 | memcpy(self->o_rest + self->fo_rest, buf, need_extra); |
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| 265 | |
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| 266 | speex_bits_reset(&(self->bits)); |
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| 267 | |
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| 268 | speex_encode_int(self->encoder, (spx_int16_t *) self->o_rest, &(self->bits)); |
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| 269 | |
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[618] | 270 | tmp = mode = speex_bits_write(&(self->bits), self->cd, fs2); |
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[617] | 271 | |
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[618] | 272 | mode = ROAR_HOST2NET16(mode); |
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[617] | 273 | stream_vio_s_write(self->stream, &mode, 2); |
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| 274 | if ( stream_vio_s_write(self->stream, self->cd, tmp) != tmp ) |
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| 275 | return -1; |
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| 276 | |
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| 277 | buf += need_extra; |
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| 278 | ret += need_extra; |
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| 279 | len -= need_extra; |
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| 280 | self->fo_rest = 0; |
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| 281 | } else { // just add the data to o_rest |
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| 282 | memcpy(self->o_rest + self->fo_rest, buf, len); |
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| 283 | self->fo_rest += len; |
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| 284 | return len; |
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| 285 | } |
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| 286 | } |
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| 287 | |
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| 288 | // TODO: do we realy need such a loop? |
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| 289 | while (len > fs2) { |
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[619] | 290 | // ROAR_WARN("cf_speex_write(*): Discarding a full block of data as non-o_rest encoding is not supported!"); |
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| 291 | // ROAR_WARN("cf_speex_write(*): Block info: len=%i, fs2=%i", len, fs2); |
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| 292 | |
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| 293 | speex_bits_reset(&(self->bits)); |
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| 294 | |
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| 295 | speex_encode_int(self->encoder, (spx_int16_t *) buf, &(self->bits)); |
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| 296 | |
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| 297 | tmp = mode = speex_bits_write(&(self->bits), self->cd, fs2); |
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| 298 | |
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| 299 | mode = ROAR_HOST2NET16(mode); |
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| 300 | |
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| 301 | stream_vio_s_write(self->stream, &mode, 2); |
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| 302 | |
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| 303 | if ( stream_vio_s_write(self->stream, self->cd, tmp) != tmp ) |
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| 304 | return -1; |
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| 305 | |
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[617] | 306 | len -= fs2; |
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| 307 | buf += fs2; |
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| 308 | ret += fs2; |
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| 309 | } |
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| 310 | |
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| 311 | if ( len ) { // we still have some data, add this to o_rest |
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| 312 | memcpy(self->o_rest, buf, len); |
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| 313 | self->fo_rest = len; |
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| 314 | ret += len; |
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| 315 | } |
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| 316 | |
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| 317 | return ret; |
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[373] | 318 | } |
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| 319 | |
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[371] | 320 | #endif |
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| 321 | |
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| 322 | //ll |
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