1 | //codecfilter_wave.c: |
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2 | |
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3 | #include "roard.h" |
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4 | |
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5 | struct codecfilter_wave_inst { |
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6 | struct roar_stream_server * stream; |
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7 | int opened; |
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8 | }; |
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9 | |
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10 | int cf_wave_open(CODECFILTER_USERDATA_T * inst, int codec, |
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11 | struct roar_stream_server * info, |
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12 | struct roar_codecfilter * filter) { |
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13 | struct codecfilter_wave_inst * self = malloc(sizeof(struct codecfilter_wave_inst)); |
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14 | struct roar_stream * s = (struct roar_stream *) info; |
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15 | |
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16 | if ( !self ) |
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17 | return -1; |
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18 | |
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19 | self->stream = info; |
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20 | self->opened = 0; |
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21 | |
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22 | /* |
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23 | if ( s->dir == ROAR_DIR_PLAY ) { |
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24 | self->decoder = celt_decoder_create(self->mode); |
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25 | } else if ( s->dir == ROAR_DIR_MONITOR ) { |
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26 | self->encoder = celt_encoder_create(self->mode); |
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27 | } else { |
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28 | celt_mode_destroy(self->mode); |
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29 | free(self); |
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30 | return -1; |
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31 | } |
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32 | */ |
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33 | |
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34 | *inst = (CODECFILTER_USERDATA_T) self; |
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35 | |
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36 | memcpy(&(s->info), g_sa, sizeof(struct roar_audio_info)); |
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37 | return 0; |
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38 | } |
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39 | |
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40 | int cf_wave_close(CODECFILTER_USERDATA_T inst) { |
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41 | struct codecfilter_wave_inst * self = (struct codecfilter_wave_inst *) inst; |
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42 | |
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43 | if ( !inst ) |
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44 | return -1; |
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45 | |
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46 | free(inst); |
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47 | return 0; |
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48 | } |
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49 | |
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50 | int cf_wave_read(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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51 | struct codecfilter_wave_inst * self = (struct codecfilter_wave_inst *) inst; |
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52 | int fh = ((struct roar_stream *)self->stream)->fh; |
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53 | int r = -1; |
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54 | char buf[44]; |
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55 | struct roar_stream * s = ROAR_STREAM(self->stream); |
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56 | |
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57 | if ( self->opened ) { |
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58 | return read(fh, buf, len); |
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59 | } else { |
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60 | if (read(fh, buf, 44) != 44) { |
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61 | close(fh); |
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62 | return -1; |
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63 | } |
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64 | |
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65 | memcpy(&(s->info.rate ), buf+24, 4); |
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66 | memcpy(&(s->info.channels), buf+22, 2); |
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67 | memcpy(&(s->info.bits ), buf+34, 2); |
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68 | |
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69 | errno = EAGAIN; |
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70 | return -1; |
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71 | } |
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72 | |
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73 | return r; |
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74 | } |
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75 | |
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76 | int cf_wave_write(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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77 | struct codecfilter_wave_inst * self = (struct codecfilter_wave_inst *) inst; |
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78 | |
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79 | return 0; |
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80 | } |
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81 | |
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82 | //ll |
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