[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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[206] | 26 | ((struct roar_stream*)info)->info.codec = ROAR_CODEC_DEFAULT; |
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| 27 | |
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| 28 | return 0; |
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[205] | 29 | } |
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| 30 | |
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| 31 | int cf_vorbis_close(CODECFILTER_USERDATA_T inst) { |
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| 32 | struct codecfilter_vorbis_inst * self = (struct codecfilter_vorbis_inst *) inst; |
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| 33 | |
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| 34 | if ( !inst ) |
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| 35 | return -1; |
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| 36 | |
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| 37 | ov_clear(&(self->vf)); |
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| 38 | |
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| 39 | free(inst); |
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[206] | 40 | return 0; |
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[205] | 41 | } |
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| 42 | |
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| 43 | int cf_vorbis_read(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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| 44 | struct codecfilter_vorbis_inst * self = (struct codecfilter_vorbis_inst *) inst; |
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| 45 | long r; |
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[206] | 46 | long todo = len; |
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| 47 | long done = 0; |
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[205] | 48 | |
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[206] | 49 | // printf("cf_vorbis_read(inst=%p, buf=%p, len=%i) = ?\n", inst, buf, len); |
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| 50 | |
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| 51 | self->opened++; |
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| 52 | if ( self->opened == 16 ) { |
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| 53 | //printf("cf_vorbis_read(*): opening...\n"); |
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[205] | 54 | if ( ov_open(self->in, &(self->vf), NULL, 0) < 0 ) { |
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| 55 | free((void*)self); |
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[206] | 56 | return 0; |
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[205] | 57 | } |
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| 58 | } |
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[206] | 59 | |
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| 60 | if ( self->opened < 16 ) { |
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| 61 | return -1; |
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| 62 | } |
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[205] | 63 | |
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[206] | 64 | while (todo) { |
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| 65 | r = ov_read(&(self->vf), buf+done, todo, 0, 2, 1, &(self->current_section)); |
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| 66 | if ( r < 1 ) { |
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| 67 | break; |
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| 68 | } else { |
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[207] | 69 | if ( self->last_section != self->current_section ) |
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| 70 | if ( cf_vorbis_update_stream(self) == -1 ) |
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| 71 | return 0; |
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| 72 | |
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| 73 | self->last_section = self->current_section; |
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[206] | 74 | todo -= r; |
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| 75 | done += r; |
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| 76 | } |
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| 77 | } |
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[205] | 78 | |
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[206] | 79 | //printf("ov_read(*) = %i\n", done); |
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| 80 | |
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| 81 | if ( done == 0 ) { |
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[205] | 82 | // do some EOF handling... |
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[206] | 83 | return 0; |
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[205] | 84 | } else { |
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[206] | 85 | return len; |
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[205] | 86 | } |
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| 87 | } |
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| 88 | |
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[207] | 89 | int cf_vorbis_update_stream (struct codecfilter_vorbis_inst * self) { |
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| 90 | vorbis_info *vi = ov_info(&(self->vf), -1); |
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| 91 | char **ptr = ov_comment(&(self->vf), -1)->user_comments; |
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| 92 | char key[80] = {0}, value[80] = {0}; |
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| 93 | struct roar_stream * s = (struct roar_stream *) self->stream; |
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| 94 | int type; |
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| 95 | int j, h = 0; |
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[222] | 96 | float rpg_track = 0, rpg_album = 0; |
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[207] | 97 | |
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| 98 | s->info.channels = vi->channels; |
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| 99 | s->info.rate = vi->rate; |
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| 100 | s->info.bits = 16; |
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| 101 | s->info.codec = ROAR_CODEC_DEFAULT; |
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| 102 | |
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| 103 | stream_meta_clear(s->id); |
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| 104 | |
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| 105 | while(*ptr){ |
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| 106 | for (j = 0; (*ptr)[j] != 0 && (*ptr)[j] != '='; j++) |
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| 107 | key[j] = (*ptr)[j]; |
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| 108 | key[j] = 0; |
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| 109 | |
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| 110 | for (j++, h = 0; (*ptr)[j] != 0 && (*ptr)[j] != '='; j++) |
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| 111 | value[h++] = (*ptr)[j]; |
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| 112 | value[h] = 0; |
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| 113 | |
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| 114 | type = roar_meta_inttype(key); |
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| 115 | if ( type != -1 ) |
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| 116 | stream_meta_set(s->id, type, "", value); |
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| 117 | |
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| 118 | ROAR_DBG("cf_vorbis_update_stream(*): Meta %-16s: %s", key, value); |
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[222] | 119 | |
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| 120 | if ( strcmp(key, "REPLAYGAIN_TRACK_PEAK") == 0 ) { |
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| 121 | rpg_track = 1/atof(value); |
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| 122 | /* |
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| 123 | } else if ( strcmp(key, "REPLAYGAIN_TRACK_GAIN") == 0 ) { |
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| 124 | rpg_track = powf(10, atof(value)/20); |
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| 125 | */ |
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| 126 | } else if ( strcmp(key, "REPLAYGAIN_ALBUM_PEAK") == 0 ) { |
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| 127 | rpg_album = 1/atof(value); |
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| 128 | /* |
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| 129 | } else if ( strcmp(key, "REPLAYGAIN_ALBUM_GAIN") == 0 ) { |
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| 130 | rpg_album = powf(10, atof(value)/20); |
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| 131 | */ |
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| 132 | } |
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| 133 | |
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[207] | 134 | ++ptr; |
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| 135 | } |
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| 136 | |
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[222] | 137 | if ( rpg_album ) { |
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| 138 | self->stream->mixer.rpg_div = 2718; // = int(exp(1)*1000) |
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| 139 | self->stream->mixer.rpg_mul = (float)rpg_album*2718; |
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| 140 | } else if ( rpg_track ) { |
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| 141 | self->stream->mixer.rpg_div = 2718; |
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| 142 | self->stream->mixer.rpg_mul = (float)rpg_track*2718; |
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| 143 | } |
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| 144 | |
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[223] | 145 | //printf("RPG: mul=%i, div=%i\n", self->stream->mixer.rpg_mul, self->stream->mixer.rpg_div); |
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[207] | 146 | return 0; |
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| 147 | } |
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| 148 | |
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[204] | 149 | //ll |
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