1 | //codecfilter_vorbis.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008 |
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5 | * |
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6 | * This file is part of roard a part of RoarAudio, |
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7 | * a cross-platform sound system for both, home and professional use. |
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8 | * See README for details. |
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9 | * |
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10 | * This file is free software; you can redistribute it and/or modify |
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11 | * it under the terms of the GNU General Public License version 3 |
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12 | * as published by the Free Software Foundation. |
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13 | * |
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14 | * RoarAudio is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this software; see the file COPYING. If not, write to |
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21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | * |
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23 | */ |
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24 | |
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25 | #define ROAR_REQUIRE_LIBVORBISFILE |
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26 | |
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27 | #include "roard.h" |
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28 | |
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29 | #ifdef ROAR_HAVE_LIBVORBISFILE |
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30 | |
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31 | #define FIFAC ((float)((uint64_t)1<<(ROAR_VORBIS_BITS-1))) |
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32 | |
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33 | int _g_cf_vorbis_vfvio_return_err (void) { |
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34 | return -1; |
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35 | } |
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36 | |
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37 | ov_callbacks _g_cf_vorbis_vfvio = { |
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38 | .read_func = cf_vorbis_vfvio_read, |
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39 | .seek_func = (int (*)(void *, ogg_int64_t, int )) _g_cf_vorbis_vfvio_return_err, |
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40 | .close_func = (int (*)(void * )) _g_cf_vorbis_vfvio_return_err, |
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41 | .tell_func = (long (*)(void * )) _g_cf_vorbis_vfvio_return_err |
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42 | }; |
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43 | |
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44 | size_t cf_vorbis_vfvio_read (void *ptr, size_t size, size_t nmemb, void *datasource) { |
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45 | ssize_t r; |
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46 | |
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47 | r = stream_vio_s_read(ROAR_STREAM_SERVER(datasource), ptr, size*nmemb); |
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48 | |
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49 | ROAR_DBG("cf_vorbis_vfvio_read(ptr=%p, size=%lu, nmemb=%lu, datasource=%p): r=%i", ptr, size, nmemb, datasource, r); |
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50 | |
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51 | if ( r == -1 ) |
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52 | return 0; |
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53 | |
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54 | if ( r > 0 ) |
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55 | errno = 0; |
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56 | |
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57 | r /= size; |
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58 | |
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59 | ROAR_DBG("cf_vorbis_vfvio_read(ptr=%p, size=%lu, nmemb=%lu, datasource=%p) = %i", ptr, size, nmemb, datasource, r); |
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60 | return r; |
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61 | } |
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62 | |
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63 | int cf_vorbis_open(CODECFILTER_USERDATA_T * inst, int codec, |
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64 | struct roar_stream_server * info, |
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65 | struct roar_codecfilter * filter) { |
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66 | struct codecfilter_vorbis_inst * self = malloc(sizeof(struct codecfilter_vorbis_inst)); |
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67 | struct roar_stream * s = ROAR_STREAM(info); |
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68 | |
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69 | if ( !self ) |
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70 | return -1; |
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71 | |
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72 | self->current_section = -1; |
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73 | self->last_section = -1; |
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74 | self->opened = 0; |
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75 | self->got_it_running = 0; |
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76 | self->stream = info; |
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77 | // self->outlen = ROAR_OUTPUT_BUFFER_SAMPLES * s->info.channels * s->info.bits / 8; // optimal size |
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78 | #ifdef ROAR_HAVE_LIBVORBISENC |
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79 | self->encoding = 0; |
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80 | self->encoder.v_base_quality = 0.3; |
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81 | self->encoder.srn = -1; |
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82 | #endif |
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83 | |
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84 | ROAR_DBG("cf_vorbis_open(*): info->id=%i", ROAR_STREAM(info)->id); |
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85 | |
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86 | *inst = (CODECFILTER_USERDATA_T) self; |
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87 | |
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88 | s->info.codec = ROAR_CODEC_DEFAULT; |
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89 | s->info.bits = 16; |
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90 | |
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91 | if ( s->dir == ROAR_DIR_PLAY ) { |
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92 | return 0; |
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93 | } else if ( s->dir == ROAR_DIR_MONITOR || s->dir == ROAR_DIR_OUTPUT ) { |
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94 | #ifdef ROAR_HAVE_LIBVORBISENC |
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95 | // set up the encoder here |
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96 | // this is delayed to the write function |
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97 | /* |
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98 | if ( cf_vorbis_encode_start(self) == -1 ) { |
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99 | free(self); |
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100 | return -1; |
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101 | } |
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102 | */ |
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103 | s->info.bits = ROAR_VORBIS_BITS; |
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104 | #else |
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105 | free(self); |
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106 | return -1; |
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107 | #endif |
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108 | } else { |
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109 | free(self); |
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110 | return -1; |
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111 | } |
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112 | |
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113 | return 0; |
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114 | } |
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115 | |
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116 | int cf_vorbis_close(CODECFILTER_USERDATA_T inst) { |
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117 | struct codecfilter_vorbis_inst * self = (struct codecfilter_vorbis_inst *) inst; |
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118 | |
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119 | if ( !inst ) |
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120 | return -1; |
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121 | |
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122 | if ( self->got_it_running ) |
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123 | ov_clear(&(self->vf)); |
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124 | |
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125 | #ifdef ROAR_HAVE_LIBVORBISENC |
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126 | if ( self->encoding ) { |
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127 | cf_vorbis_encode_end(self); |
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128 | } |
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129 | #endif |
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130 | |
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131 | free(inst); |
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132 | return 0; |
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133 | } |
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134 | |
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135 | int cf_vorbis_write(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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136 | #ifdef ROAR_HAVE_LIBVORBISENC |
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137 | struct codecfilter_vorbis_inst * self = (struct codecfilter_vorbis_inst *) inst; |
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138 | struct roar_stream * s = ROAR_STREAM(self->stream); |
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139 | ogg_packet header; |
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140 | ogg_packet header_comm; |
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141 | ogg_packet header_code; |
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142 | float ** encbuf; |
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143 | int i, c; |
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144 | int chans; |
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145 | int end; |
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146 | int sid; |
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147 | void * prethrubuf; |
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148 | #if ROAR_VORBIS_BITS == 8 |
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149 | int8_t * data = (int8_t *) buf; |
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150 | #elif ROAR_VORBIS_BITS == 16 |
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151 | int16_t * data = (int16_t *) buf; |
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152 | #elif ROAR_VORBIS_BITS == 32 |
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153 | int32_t * data = (int32_t *) buf; |
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154 | #else |
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155 | #error value of ROAR_VORBIS_BITS not supported |
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156 | #endif |
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157 | |
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158 | if ( ! self->opened ) { |
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159 | if ( !self->encoding ) { |
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160 | if ( cf_vorbis_encode_start(self) == -1 ) { |
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161 | return -1; |
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162 | } |
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163 | } |
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164 | |
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165 | sid = ROAR_STREAM(self->stream)->id; |
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166 | |
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167 | vorbis_analysis_headerout(&(self->encoder.vd), &(self->encoder.vc), &header, &header_comm, &header_code); |
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168 | |
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169 | ogg_stream_packetin(&(self->encoder.os), &header); |
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170 | ogg_stream_packetin(&(self->encoder.os), &header_comm); |
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171 | ogg_stream_packetin(&(self->encoder.os), &header_code); |
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172 | |
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173 | stream_prethru_destroy(sid); |
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174 | |
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175 | while (ogg_stream_flush(&(self->encoder.os), &(self->encoder.og))) { |
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176 | if ( stream_vio_s_write(self->stream, self->encoder.og.header, self->encoder.og.header_len) |
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177 | != self->encoder.og.header_len || |
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178 | stream_vio_s_write(self->stream, self->encoder.og.body, self->encoder.og.body_len ) |
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179 | != self->encoder.og.body_len ) { |
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180 | free(self); // TODO: do we need addional cleanup? |
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181 | return -1; |
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182 | } |
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183 | // we ignore errors at the moment... |
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184 | if ( stream_prethru_add_data(sid, &prethrubuf, self->encoder.og.header_len + self->encoder.og.body_len) != -1 ) { |
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185 | memcpy(prethrubuf, self->encoder.og.header, self->encoder.og.header_len); |
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186 | memcpy(prethrubuf + self->encoder.og.header_len, self->encoder.og.body, self->encoder.og.body_len ); |
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187 | } |
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188 | } |
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189 | self->opened = 1; |
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190 | } else { |
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191 | encbuf = vorbis_analysis_buffer(&(self->encoder.vd), len /* TODO: need to lookup the menaing of this */); |
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192 | chans = s->info.channels; |
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193 | end = len*8/(ROAR_VORBIS_BITS*chans); |
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194 | |
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195 | if ( chans == 1 ) { // use optimized code |
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196 | for (i = 0; i < end; i++) |
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197 | encbuf[0][i] = data[i]/FIFAC; |
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198 | |
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199 | } else if ( chans == 2 ) { // use optimized code |
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200 | for (i = 0; i < end; i++) { |
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201 | encbuf[0][i] = data[2*i ]/FIFAC; |
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202 | encbuf[1][i] = data[2*i+1]/FIFAC; |
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203 | } |
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204 | } else { // use generic multi channel code |
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205 | for (i = 0; i < end; i++) { |
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206 | for (c = 0; c < chans; c++) { |
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207 | encbuf[c][i] = data[chans*i+c]/FIFAC; |
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208 | } |
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209 | } |
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210 | } |
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211 | |
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212 | vorbis_analysis_wrote(&(self->encoder.vd), i); |
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213 | |
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214 | if ( cf_vorbis_encode_flushout(self) == -1 ) |
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215 | return -1; |
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216 | } |
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217 | |
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218 | return len; // we assume every thing was written (at least into our dsp anaylises buffer |
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219 | #else |
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220 | errno = ENOSYS; |
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221 | return -1; |
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222 | #endif |
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223 | } |
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224 | int cf_vorbis_read(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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225 | struct codecfilter_vorbis_inst * self = (struct codecfilter_vorbis_inst *) inst; |
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226 | long r; |
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227 | long todo = len; |
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228 | long done = 0; |
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229 | |
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230 | // printf("cf_vorbis_read(inst=%p, buf=%p, len=%i) = ?\n", inst, buf, len); |
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231 | |
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232 | self->opened++; |
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233 | if ( self->opened == 16 ) { |
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234 | |
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235 | //printf("cf_vorbis_read(*): opening...\n"); |
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236 | if ( ov_open_callbacks((void*)self->stream, &(self->vf), NULL, 0, _g_cf_vorbis_vfvio) < 0 ) { |
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237 | return 0; |
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238 | } |
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239 | errno = EAGAIN; |
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240 | return -1; |
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241 | } |
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242 | |
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243 | if ( self->opened < 16 ) { |
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244 | errno = EAGAIN; |
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245 | return -1; |
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246 | } |
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247 | |
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248 | |
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249 | self->got_it_running = 1; |
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250 | |
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251 | while (todo) { |
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252 | r = ov_read(&(self->vf), buf+done, todo, 0, 2, 1, &(self->current_section)); |
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253 | if ( r == OV_HOLE ) { |
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254 | ROAR_DBG("cf_vorbis_read(*): Hole in stream"); |
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255 | } else if ( r < 1 ) { |
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256 | break; |
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257 | } else { |
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258 | if ( self->last_section != self->current_section ) |
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259 | if ( cf_vorbis_update_stream(self) == -1 ) |
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260 | return 0; |
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261 | |
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262 | self->last_section = self->current_section; |
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263 | todo -= r; |
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264 | done += r; |
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265 | } |
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266 | } |
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267 | |
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268 | //printf("ov_read(*) = %i\n", done); |
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269 | |
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270 | if ( done == 0 ) { |
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271 | // do some EOF handling... |
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272 | return 0; |
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273 | } else { |
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274 | return len; |
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275 | } |
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276 | } |
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277 | |
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278 | int cf_vorbis_update_stream (struct codecfilter_vorbis_inst * self) { |
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279 | #ifdef ROAR_SUPPORT_META |
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280 | vorbis_info *vi = ov_info(&(self->vf), -1); |
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281 | char **ptr = ov_comment(&(self->vf), -1)->user_comments; |
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282 | char key[ROAR_META_MAX_NAMELEN] = {0}, value[LIBROAR_BUFFER_MSGDATA] = {0}; |
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283 | struct roar_stream * s = ROAR_STREAM(self->stream); |
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284 | int type; |
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285 | int j, h = 0; |
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286 | float rpg_track = 0, rpg_album = 0; |
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287 | int meta_ok; |
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288 | |
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289 | s->info.channels = vi->channels; |
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290 | s->info.rate = vi->rate; |
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291 | s->info.bits = 16; |
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292 | s->info.codec = ROAR_CODEC_DEFAULT; |
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293 | |
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294 | stream_meta_clear(s->id); |
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295 | |
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296 | while(*ptr){ |
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297 | meta_ok = 1; |
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298 | |
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299 | for (j = 0; (*ptr)[j] != 0 && (*ptr)[j] != '='; j++) { |
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300 | if ( j == ROAR_META_MAX_NAMELEN ) { |
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301 | ROAR_ERR("cf_vorbis_update_stream(*): invalid meta data on stream %i: meta data key too long", s->id); |
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302 | meta_ok = 0; |
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303 | j = 0; |
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304 | break; |
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305 | } |
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306 | key[j] = (*ptr)[j]; |
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307 | } |
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308 | key[j] = 0; |
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309 | |
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310 | if ( meta_ok ) { |
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311 | for (j++, h = 0; (*ptr)[j] != 0 && (*ptr)[j] != '='; j++) { |
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312 | if ( h == LIBROAR_BUFFER_MSGDATA ) { |
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313 | ROAR_ERR("update_stream(*): invalid meta data on stream %i: meta data value for key '%s' too long", s->id, key); |
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314 | meta_ok = 0; |
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315 | h = 0; |
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316 | break; |
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317 | } |
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318 | value[h++] = (*ptr)[j]; |
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319 | } |
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320 | value[h] = 0; |
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321 | } |
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322 | |
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323 | if ( meta_ok ) { |
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324 | type = roar_meta_inttype(key); |
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325 | if ( type != -1 ) |
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326 | stream_meta_set(s->id, type, "", value); |
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327 | |
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328 | ROAR_DBG("cf_vorbis_update_stream(*): Meta %-16s: %s", key, value); |
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329 | |
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330 | if ( strcmp(key, "REPLAYGAIN_TRACK_PEAK") == 0 ) { |
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331 | rpg_track = 1/atof(value); |
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332 | /* |
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333 | } else if ( strcmp(key, "REPLAYGAIN_TRACK_GAIN") == 0 ) { |
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334 | rpg_track = powf(10, atof(value)/20); |
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335 | */ |
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336 | } else if ( strcmp(key, "REPLAYGAIN_ALBUM_PEAK") == 0 ) { |
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337 | rpg_album = 1/atof(value); |
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338 | /* |
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339 | } else if ( strcmp(key, "REPLAYGAIN_ALBUM_GAIN") == 0 ) { |
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340 | rpg_album = powf(10, atof(value)/20); |
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341 | */ |
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342 | } |
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343 | } |
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344 | |
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345 | ptr++; |
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346 | } |
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347 | |
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348 | if ( rpg_album ) { |
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349 | self->stream->mixer.rpg_div = 2718; // = int(exp(1)*1000) |
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350 | self->stream->mixer.rpg_mul = (float)rpg_album*2718; |
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351 | } else if ( rpg_track ) { |
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352 | self->stream->mixer.rpg_div = 2718; |
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353 | self->stream->mixer.rpg_mul = (float)rpg_track*2718; |
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354 | } |
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355 | |
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356 | stream_meta_finalize(s->id); |
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357 | #endif |
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358 | //printf("RPG: mul=%i, div=%i\n", self->stream->mixer.rpg_mul, self->stream->mixer.rpg_div); |
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359 | return 0; |
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360 | } |
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361 | |
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362 | int cf_vorbis_encode_start (struct codecfilter_vorbis_inst * self) { |
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363 | #ifdef ROAR_HAVE_LIBVORBISENC |
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364 | int srn = self->encoder.srn; // this value is allrady inited... |
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365 | #ifdef ROAR_SUPPORT_META |
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366 | int len = 0; |
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367 | int i; |
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368 | int types[ROAR_META_MAX_PER_STREAM]; |
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369 | #endif |
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370 | int sid = ROAR_STREAM(self->stream)->id; |
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371 | float v_base_quality = self->encoder.v_base_quality; |
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372 | char val[LIBROAR_BUFFER_MSGDATA]; |
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373 | |
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374 | val[LIBROAR_BUFFER_MSGDATA-1] = 0; |
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375 | |
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376 | memset(&(self->encoder), 0, sizeof(self->encoder)); |
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377 | |
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378 | self->encoding = 1; |
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379 | self->encoder.srn = srn + 1; |
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380 | self->encoder.v_base_quality = v_base_quality; |
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381 | |
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382 | vorbis_info_init(&(self->encoder.vi)); |
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383 | vorbis_comment_init(&(self->encoder.vc)); |
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384 | vorbis_comment_add_tag(&(self->encoder.vc), "SERVER", "RoarAudio"); |
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385 | vorbis_comment_add_tag(&(self->encoder.vc), "ENCODER", "RoarAudio Vorbis codecfilter"); |
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386 | |
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387 | #ifdef ROAR_SUPPORT_META |
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388 | if ( (len = stream_meta_list(sid, types, ROAR_META_MAX_PER_STREAM)) != -1 ) { |
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389 | for (i = 0; i < len; i++) { |
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390 | //int stream_meta_get (int id, int type, char * name, char * val, size_t len); |
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391 | if ( stream_meta_get(sid, types[i], NULL, val, LIBROAR_BUFFER_MSGDATA-1) == 0 ) |
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392 | vorbis_comment_add_tag(&(self->encoder.vc), roar_meta_strtype(types[i]), val); |
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393 | } |
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394 | } |
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395 | #endif |
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396 | |
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397 | ROAR_DBG("cf_vorbis_encode_start(*): q=%f", v_base_quality); |
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398 | |
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399 | if( vorbis_encode_init_vbr(&(self->encoder.vi), (long) ROAR_STREAM(self->stream)->info.channels, |
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400 | (long) ROAR_STREAM(self->stream)->info.rate, |
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401 | v_base_quality) != 0 ) { |
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402 | ROAR_ERR("cf_vorbis_encode_start(*): Can not vorbis_encode_init_vbr(*)!"); |
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403 | vorbis_info_clear(&(self->encoder.vi)); // TODO: do we need to free vc also? |
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404 | return -1; |
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405 | } |
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406 | |
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407 | vorbis_analysis_init(&(self->encoder.vd), &(self->encoder.vi)); |
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408 | vorbis_block_init(&(self->encoder.vd), &(self->encoder.vb)); |
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409 | |
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410 | ROAR_DBG("cf_vorbis_encode_start(*): srn=%i", self->encoder.srn); |
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411 | // "RA"<<16 + PID<<8 + Stream ID |
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412 | ogg_stream_init(&(self->encoder.os), |
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413 | (((0x5241 + self->encoder.srn) & 0xffff)<<16) + |
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414 | ( (getpid() & 0x00ff)<< 8) + |
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415 | ( sid & 0x00ff)); |
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416 | return 0; |
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417 | #else |
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418 | return -1; |
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419 | #endif |
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420 | } |
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421 | |
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422 | int cf_vorbis_encode_end (struct codecfilter_vorbis_inst * self) { |
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423 | #ifdef ROAR_HAVE_LIBVORBISENC |
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424 | if ( self->encoding ) { |
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425 | // try to flush up to an EOS page... |
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426 | vorbis_analysis_buffer(&(self->encoder.vd), 2*ROAR_MAX_CHANNELS); |
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427 | vorbis_analysis_wrote(&(self->encoder.vd), 0); |
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428 | cf_vorbis_encode_flushout(self); |
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429 | |
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430 | // clean up... |
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431 | ogg_stream_clear(&(self->encoder.os)); |
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432 | vorbis_block_clear(&(self->encoder.vb)); |
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433 | vorbis_dsp_clear(&(self->encoder.vd)); |
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434 | vorbis_info_clear(&(self->encoder.vi)); |
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435 | self->opened = 0; |
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436 | } |
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437 | |
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438 | return 0; |
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439 | #else |
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440 | return -1; |
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441 | #endif |
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442 | } |
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443 | |
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444 | int cf_vorbis_encode_flushout(struct codecfilter_vorbis_inst * self) { |
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445 | #ifdef ROAR_HAVE_LIBVORBISENC |
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446 | while ( vorbis_analysis_blockout(&(self->encoder.vd), &(self->encoder.vb)) == 1 ) { |
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447 | vorbis_analysis(&(self->encoder.vb), &(self->encoder.op)); |
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448 | vorbis_bitrate_addblock(&(self->encoder.vb)); |
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449 | |
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450 | while ( vorbis_bitrate_flushpacket(&(self->encoder.vd), &(self->encoder.op)) ) { |
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451 | ogg_stream_packetin(&(self->encoder.os), &(self->encoder.op)); |
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452 | |
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453 | while( ogg_stream_pageout(&(self->encoder.os), &(self->encoder.og)) ) { |
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454 | if ( |
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455 | stream_vio_s_write(self->stream, self->encoder.og.header, self->encoder.og.header_len) == -1 || |
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456 | stream_vio_s_write(self->stream, self->encoder.og.body, self->encoder.og.body_len ) == -1 ) { |
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457 | return -1; |
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458 | } |
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459 | } |
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460 | } |
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461 | } |
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462 | |
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463 | return 0; |
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464 | #else |
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465 | return -1; |
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466 | #endif |
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467 | } |
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468 | |
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469 | int cf_vorbis_ctl(CODECFILTER_USERDATA_T inst, int cmd, void * data) { |
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470 | struct codecfilter_vorbis_inst * self = (struct codecfilter_vorbis_inst *) inst; |
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471 | int_least32_t type = cmd & ROAR_STREAM_CTL_TYPEMASK; |
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472 | |
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473 | cmd -= type; |
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474 | |
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475 | switch (cmd) { |
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476 | case ROAR_CODECFILTER_CTL2CMD(ROAR_CODECFILTER_CTL_META_UPDATE): |
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477 | if ( type != ROAR_STREAM_CTL_TYPE_VOID ) |
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478 | return -1; |
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479 | |
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480 | ROAR_DBG("cf_vorbis_ctl(*): stoping stream..."); |
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481 | if ( cf_vorbis_encode_end(self) == -1 ) |
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482 | return -1; |
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483 | ROAR_DBG("cf_vorbis_ctl(*): restarting stream..."); |
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484 | if ( cf_vorbis_encode_start(self) == -1 ) |
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485 | return -1; |
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486 | |
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487 | return 0; |
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488 | break; |
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489 | case ROAR_CODECFILTER_CTL2CMD(ROAR_CODECFILTER_CTL_SET_Q): |
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490 | if ( type != ROAR_STREAM_CTL_TYPE_FLOAT ) |
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491 | return -1; |
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492 | |
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493 | ROAR_DBG("cf_vorbis_ctl(*): setting quality to q=%f", *(float*)data); |
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494 | |
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495 | self->encoder.v_base_quality = *(float*)data / 10; |
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496 | |
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497 | if ( self->encoding ) { |
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498 | ROAR_DBG("cf_vorbis_ctl(*): we are allready encoding, restart..."); |
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499 | ROAR_DBG("cf_vorbis_ctl(*): stoping stream..."); |
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500 | if ( cf_vorbis_encode_end(self) == -1 ) |
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501 | return -1; |
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502 | ROAR_DBG("cf_vorbis_ctl(*): restarting stream..."); |
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503 | if ( cf_vorbis_encode_start(self) == -1 ) |
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504 | return -1; |
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505 | } |
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506 | |
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507 | return 0; |
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508 | break; |
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509 | default: |
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510 | ROAR_DBG("cf_vorbis_ctl(*): Unknown command: cmd=0x%.8x, type=0x%.8x, pcmd=0x%.8x", |
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511 | cmd, type, ROAR_CODECFILTER_CTL2CMD(cmd)); |
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512 | return -1; |
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513 | } |
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514 | |
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515 | return -1; |
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516 | } |
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517 | |
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518 | #endif |
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519 | //ll |
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