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[204] | 1 | //codecfilter_vorbis.c: |
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| 2 | |
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| 3 | #include "roard.h" |
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| 4 | |
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[205] | 5 | int cf_vorbis_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_vorbis_inst * self = malloc(sizeof(struct codecfilter_vorbis_inst)); |
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| 9 | |
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| 10 | if ( !self ) |
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| 11 | return -1; |
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| 12 | |
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| 13 | self->current_section = -1; |
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| 14 | self->last_section = -1; |
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| 15 | self->opened = 0; |
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| 16 | self->stream = info; |
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| 17 | // self->outlen = ROAR_OUTPUT_BUFFER_SAMPLES * s->info.channels * s->info.bits / 8; // optimal size |
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| 18 | |
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| 19 | if ( (self->in = fdopen(((struct roar_stream*)info)->fh, "r")) == NULL ) { |
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| 20 | free((void*)self); |
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| 21 | return -1; |
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| 22 | } |
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| 23 | |
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| 24 | *inst = (CODECFILTER_USERDATA_T) self; |
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| 25 | |
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| 26 | return -1; |
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| 27 | } |
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| 28 | |
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| 29 | int cf_vorbis_close(CODECFILTER_USERDATA_T inst) { |
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| 30 | struct codecfilter_vorbis_inst * self = (struct codecfilter_vorbis_inst *) inst; |
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| 31 | |
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| 32 | if ( !inst ) |
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| 33 | return -1; |
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| 34 | |
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| 35 | ov_clear(&(self->vf)); |
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| 36 | |
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| 37 | free(inst); |
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| 38 | return -1; |
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| 39 | } |
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| 40 | |
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| 41 | int cf_vorbis_read(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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| 42 | struct codecfilter_vorbis_inst * self = (struct codecfilter_vorbis_inst *) inst; |
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| 43 | long r; |
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| 44 | |
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| 45 | if ( !self->opened == 2 ) { |
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| 46 | if ( ov_open(self->in, &(self->vf), NULL, 0) < 0 ) { |
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| 47 | free((void*)self); |
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| 48 | return -1; |
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| 49 | } |
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| 50 | } |
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| 51 | self->opened++; |
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| 52 | |
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| 53 | r = ov_read(&(self->vf), buf, len, 0, 2, 1, &(self->current_section)); |
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| 54 | |
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| 55 | if ( r == 0 ) { |
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| 56 | // do some EOF handling... |
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| 57 | return -1; |
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| 58 | } else if ( r < 0 ) { |
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| 59 | return -1; // error in stream |
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| 60 | } else { |
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| 61 | return r; |
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| 62 | } |
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| 63 | } |
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| 64 | |
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[204] | 65 | //ll |
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