[324] | 1 | //codecfilter_celt.c: |
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| 2 | |
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| 3 | #include "roard.h" |
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| 4 | |
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| 5 | int cf_celt_open(CODECFILTER_USERDATA_T * inst, int codec, |
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| 6 | struct roar_stream_server * info, |
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| 7 | struct roar_codecfilter * filter) { |
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| 8 | struct codecfilter_celt_inst * self = malloc(sizeof(struct codecfilter_celt_inst)); |
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[325] | 9 | struct roar_stream * s = (struct roar_stream *) info; |
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[324] | 10 | |
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| 11 | if ( !self ) |
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| 12 | return -1; |
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| 13 | |
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[325] | 14 | /* |
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| 15 | CELTMode * mode; |
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| 16 | CELTEncoder * encoder; |
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| 17 | CELTDecoder * decoder; |
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| 18 | int frame_size; |
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| 19 | int lookahead; |
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| 20 | int out_size; |
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| 21 | char * ibuf; |
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| 22 | char * obuf; |
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| 23 | char * rest; |
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| 24 | int s_buf; |
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| 25 | int f_rest; /-* how much is in rest? *-/ |
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| 26 | */ |
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| 27 | |
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[324] | 28 | self->stream = info; |
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[325] | 29 | self->frame_size = 256; |
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| 30 | self->lookahead = self->frame_size; |
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| 31 | self->encoder = NULL; |
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| 32 | self->decoder = NULL; |
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[331] | 33 | self->s_buf = s->info.channels * self->frame_size * 2; |
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[326] | 34 | self->ibuf = malloc(self->s_buf); |
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| 35 | self->obuf = malloc(self->s_buf); |
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[331] | 36 | self->i_rest = malloc(self->s_buf); |
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| 37 | self->o_rest = malloc(self->s_buf); |
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| 38 | self->fi_rest = 0; |
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| 39 | self->fo_rest = 0; |
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[326] | 40 | |
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[331] | 41 | if ( !(self->ibuf && self->obuf && self->i_rest && self->o_rest) ) { |
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[326] | 42 | if ( self->ibuf ) |
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| 43 | free(self->ibuf); |
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| 44 | |
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| 45 | if ( self->obuf ) |
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| 46 | free(self->obuf); |
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| 47 | |
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[331] | 48 | if ( self->i_rest ) |
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| 49 | free(self->o_rest); |
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| 50 | |
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| 51 | if ( self->o_rest ) |
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| 52 | free(self->o_rest); |
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[326] | 53 | |
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| 54 | free(self); |
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| 55 | return -1; |
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| 56 | } |
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| 57 | |
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[350] | 58 | self->mode = celt_mode_create(s->info.rate, s->info.channels, self->frame_size, NULL); |
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[325] | 59 | |
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| 60 | if ( !self->mode ) { |
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| 61 | free(self); |
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| 62 | return -1; |
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| 63 | } |
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| 64 | |
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| 65 | if ( s->dir == ROAR_DIR_PLAY ) { |
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| 66 | self->decoder = celt_decoder_create(self->mode); |
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| 67 | } else if ( s->dir == ROAR_DIR_MONITOR ) { |
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| 68 | self->encoder = celt_encoder_create(self->mode); |
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| 69 | } else { |
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| 70 | celt_mode_destroy(self->mode); |
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| 71 | free(self); |
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| 72 | return -1; |
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| 73 | } |
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[324] | 74 | |
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| 75 | *inst = (CODECFILTER_USERDATA_T) self; |
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| 76 | |
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[326] | 77 | s->info.codec = ROAR_CODEC_DEFAULT; |
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| 78 | s->info.bits = 16; // CELT hardcoded |
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[324] | 79 | |
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| 80 | return 0; |
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| 81 | } |
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| 82 | |
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| 83 | int cf_celt_close(CODECFILTER_USERDATA_T inst) { |
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| 84 | struct codecfilter_celt_inst * self = (struct codecfilter_celt_inst *) inst; |
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| 85 | |
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| 86 | if ( !inst ) |
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| 87 | return -1; |
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| 88 | |
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[325] | 89 | if ( self->encoder ) |
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| 90 | celt_encoder_destroy(self->encoder); |
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| 91 | |
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| 92 | if ( self->decoder ) |
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| 93 | celt_decoder_destroy(self->decoder); |
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| 94 | |
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| 95 | if ( self->mode ) |
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| 96 | celt_mode_destroy(self->mode); |
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| 97 | |
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[327] | 98 | if ( self->ibuf ) |
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| 99 | free(self->ibuf); |
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| 100 | |
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| 101 | if ( self->obuf ) |
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| 102 | free(self->obuf); |
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| 103 | |
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[331] | 104 | if ( self->i_rest ) |
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| 105 | free(self->i_rest); |
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| 106 | |
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| 107 | if ( self->o_rest ) |
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| 108 | free(self->o_rest); |
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[327] | 109 | |
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[324] | 110 | free(inst); |
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| 111 | return 0; |
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| 112 | } |
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| 113 | |
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| 114 | int cf_celt_read(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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| 115 | struct codecfilter_celt_inst * self = (struct codecfilter_celt_inst *) inst; |
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[328] | 116 | int fh = ((struct roar_stream *)self->stream)->fh; |
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| 117 | int r = 0; |
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| 118 | uint16_t fs; |
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[331] | 119 | char * cbuf; |
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| 120 | |
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| 121 | // printf("buf=%p, len=%i\n", buf, len); |
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[324] | 122 | |
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[332] | 123 | if ( self->fi_rest ) { |
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| 124 | memcpy(buf, self->i_rest, self->fi_rest); |
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| 125 | r += self->fi_rest; |
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| 126 | self->fi_rest = 0; |
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| 127 | } |
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| 128 | |
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[328] | 129 | while ( r <= (len - self->s_buf) ) { |
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| 130 | if ( read(fh, &fs, 2) != 2 ) |
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| 131 | break; |
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| 132 | |
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| 133 | fs = ROAR_NET2HOST16(fs); |
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| 134 | |
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| 135 | if ( read(fh, self->ibuf, fs) != fs ) |
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| 136 | break; |
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| 137 | |
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[331] | 138 | cbuf = buf + r; |
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| 139 | |
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[332] | 140 | // printf("buf=%p, r=%i // cbuf=%p\n", buf, r, cbuf); |
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[331] | 141 | if ( celt_decode(self->decoder, (unsigned char *) self->ibuf, fs, (celt_int16_t *) cbuf) < 0 ) |
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[328] | 142 | break; |
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| 143 | |
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| 144 | r += self->s_buf; |
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| 145 | } |
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| 146 | |
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[332] | 147 | if ( r < len ) { |
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| 148 | // printf("r < len!\n"); |
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| 149 | if ( read(fh, &fs, 2) == 2 ) { |
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| 150 | fs = ROAR_NET2HOST16(fs); |
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| 151 | // printf("next: fs=%i\n", fs); |
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| 152 | if ( read(fh, self->ibuf, fs) == fs ) { |
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| 153 | // printf("got data!\n"); |
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| 154 | if ( celt_decode(self->decoder, (unsigned char *) self->ibuf, fs, (celt_int16_t *) self->obuf) >= 0 ) { |
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| 155 | // printf("{ // decode rest\n"); |
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| 156 | // printf(" r=%i // need %i Bytes\n", r, len - r); |
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| 157 | // printf(" memcpy(buf+%i, self->obuf, %i) = ?\n", r, len - r); |
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| 158 | memcpy(buf+r, self->obuf, len - r); |
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| 159 | self->fi_rest = self->s_buf + r - len; |
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| 160 | memcpy(self->i_rest, self->obuf + len - r, self->fi_rest); |
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| 161 | // printf(" len=%i, r=%i, fi_rest=%i, s_buf=%i\n", len, r, self->fi_rest, self->s_buf); |
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| 162 | r = len; |
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| 163 | // printf("}\n"); |
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| 164 | } |
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| 165 | } |
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| 166 | } |
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| 167 | } |
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| 168 | |
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[333] | 169 | ROAR_DBG("cf_celt_read(inst=%p, buf=%p, len=%i) = %i", inst, buf, len, r); |
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[328] | 170 | return r; |
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[324] | 171 | } |
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| 172 | |
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| 173 | int cf_celt_write(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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| 174 | struct codecfilter_celt_inst * self = (struct codecfilter_celt_inst *) inst; |
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| 175 | |
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| 176 | return 0; |
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| 177 | } |
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| 178 | |
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| 179 | //ll |
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