Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1 | /* libFLAC - Free Lossless Audio Codec library |
| 2 | * Copyright (C) 2001,2002 Josh Coalson |
| 3 | * |
| 4 | * This library is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU Library General Public |
| 6 | * License as published by the Free Software Foundation; either |
| 7 | * version 2 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * This library is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * Library General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU Library General Public |
| 15 | * License along with this library; if not, write to the |
| 16 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 17 | * Boston, MA 02111-1307, USA. |
| 18 | */ |
| 19 | |
| 20 | #include <stdlib.h> |
| 21 | #include <string.h> |
| 22 | |
| 23 | #include "private/metadata.h" |
| 24 | |
| 25 | #include "FLAC/assert.h" |
| 26 | |
| 27 | |
| 28 | /**************************************************************************** |
| 29 | * |
| 30 | * Local routines |
| 31 | * |
| 32 | ***************************************************************************/ |
| 33 | |
| 34 | static FLAC__bool copy_bytes_(FLAC__byte **to, const FLAC__byte *from, unsigned bytes) |
| 35 | { |
| 36 | if(bytes > 0 && 0 != from) { |
| 37 | FLAC__byte *x; |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 38 | if(0 == (x = (FLAC__byte*)malloc(bytes))) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 39 | return false; |
| 40 | memcpy(x, from, bytes); |
| 41 | *to = x; |
| 42 | } |
| 43 | else { |
| 44 | FLAC__ASSERT(0 == from); |
| 45 | FLAC__ASSERT(bytes == 0); |
| 46 | *to = 0; |
| 47 | } |
| 48 | return true; |
| 49 | } |
| 50 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 51 | static FLAC__bool copy_vcentry_(FLAC__StreamMetadata_VorbisComment_Entry *to, const FLAC__StreamMetadata_VorbisComment_Entry *from) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 52 | { |
| 53 | to->length = from->length; |
| 54 | if(0 == from->entry) { |
| 55 | FLAC__ASSERT(from->length == 0); |
| 56 | to->entry = 0; |
| 57 | } |
| 58 | else { |
| 59 | FLAC__byte *x; |
| 60 | FLAC__ASSERT(from->length > 0); |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 61 | if(0 == (x = (FLAC__byte*)malloc(from->length))) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 62 | return false; |
| 63 | memcpy(x, from->entry, from->length); |
| 64 | to->entry = x; |
| 65 | } |
| 66 | return true; |
| 67 | } |
| 68 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame^] | 69 | static FLAC__bool copy_track_(FLAC__StreamMetadata_CueSheet_Track *to, const FLAC__StreamMetadata_CueSheet_Track *from) |
| 70 | { |
| 71 | memcpy(to, from, sizeof(FLAC__StreamMetadata_CueSheet_Track)); |
| 72 | if(0 == from->indices) { |
| 73 | FLAC__ASSERT(from->num_indices == 0); |
| 74 | } |
| 75 | else { |
| 76 | FLAC__StreamMetadata_CueSheet_Index *x; |
| 77 | FLAC__ASSERT(from->num_indices > 0); |
| 78 | if(0 == (x = (FLAC__StreamMetadata_CueSheet_Index*)malloc(from->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index)))) |
| 79 | return false; |
| 80 | memcpy(x, from->indices, from->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index)); |
| 81 | to->indices = x; |
| 82 | } |
| 83 | return true; |
| 84 | } |
| 85 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 86 | static void seektable_calculate_length_(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 87 | { |
| 88 | FLAC__ASSERT(0 != object); |
| 89 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 90 | |
| 91 | object->length = object->data.seek_table.num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH; |
| 92 | } |
| 93 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 94 | static FLAC__StreamMetadata_SeekPoint *seekpoint_array_new_(unsigned num_points) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 95 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 96 | FLAC__StreamMetadata_SeekPoint *object_array; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 97 | |
| 98 | FLAC__ASSERT(num_points > 0); |
| 99 | |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 100 | object_array = (FLAC__StreamMetadata_SeekPoint*)malloc(num_points * sizeof(FLAC__StreamMetadata_SeekPoint)); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 101 | |
| 102 | if(0 != object_array) { |
| 103 | unsigned i; |
| 104 | for(i = 0; i < num_points; i++) { |
| 105 | object_array[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER; |
| 106 | object_array[i].stream_offset = 0; |
| 107 | object_array[i].frame_samples = 0; |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | return object_array; |
| 112 | } |
| 113 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 114 | static void vorbiscomment_calculate_length_(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 115 | { |
| 116 | unsigned i; |
| 117 | |
| 118 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 119 | |
| 120 | object->length = (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN) / 8; |
| 121 | object->length += object->data.vorbis_comment.vendor_string.length; |
| 122 | object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN) / 8; |
| 123 | for(i = 0; i < object->data.vorbis_comment.num_comments; i++) { |
| 124 | object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8); |
| 125 | object->length += object->data.vorbis_comment.comments[i].length; |
| 126 | } |
| 127 | } |
| 128 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 129 | static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_new_(unsigned num_comments) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 130 | { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 131 | FLAC__ASSERT(num_comments > 0); |
| 132 | |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 133 | return (FLAC__StreamMetadata_VorbisComment_Entry*)calloc(num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry)); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 134 | } |
| 135 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 136 | static void vorbiscomment_entry_array_delete_(FLAC__StreamMetadata_VorbisComment_Entry *object_array, unsigned num_comments) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 137 | { |
| 138 | unsigned i; |
| 139 | |
| 140 | FLAC__ASSERT(0 != object_array && num_comments > 0); |
| 141 | |
| 142 | for(i = 0; i < num_comments; i++) |
| 143 | if(0 != object_array[i].entry) |
| 144 | free(object_array[i].entry); |
| 145 | |
| 146 | if(0 != object_array) |
| 147 | free(object_array); |
| 148 | } |
| 149 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 150 | static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_copy_(const FLAC__StreamMetadata_VorbisComment_Entry *object_array, unsigned num_comments) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 151 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 152 | FLAC__StreamMetadata_VorbisComment_Entry *return_array; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 153 | |
| 154 | FLAC__ASSERT(0 != object_array); |
| 155 | FLAC__ASSERT(num_comments > 0); |
| 156 | |
| 157 | return_array = vorbiscomment_entry_array_new_(num_comments); |
| 158 | |
| 159 | if(0 != return_array) { |
| 160 | unsigned i; |
| 161 | |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 162 | for(i = 0; i < num_comments; i++) { |
| 163 | if(!copy_vcentry_(return_array+i, object_array+i)) { |
| 164 | vorbiscomment_entry_array_delete_(return_array, num_comments); |
| 165 | return 0; |
| 166 | } |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | return return_array; |
| 171 | } |
| 172 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 173 | static FLAC__bool vorbiscomment_set_entry_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry *dest, const FLAC__StreamMetadata_VorbisComment_Entry *src, FLAC__bool copy) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 174 | { |
| 175 | FLAC__byte *save; |
| 176 | |
| 177 | FLAC__ASSERT(0 != object); |
| 178 | FLAC__ASSERT(0 != dest); |
| 179 | FLAC__ASSERT(0 != src); |
| 180 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 181 | FLAC__ASSERT((0 != src->entry && src->length > 0) || (0 == src->entry && src->length == 0 && copy == false)); |
| 182 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 183 | save = dest->entry; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 184 | |
| 185 | /* do the copy first so that if we fail we leave the object untouched */ |
| 186 | if(copy) { |
| 187 | if(!copy_vcentry_(dest, src)) |
| 188 | return false; |
| 189 | } |
| 190 | else { |
| 191 | *dest = *src; |
| 192 | } |
| 193 | |
| 194 | if(0 != save) |
| 195 | free(save); |
| 196 | |
| 197 | vorbiscomment_calculate_length_(object); |
| 198 | return true; |
| 199 | } |
| 200 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame^] | 201 | static void cuesheet_calculate_length_(FLAC__StreamMetadata *object) |
| 202 | { |
| 203 | unsigned i; |
| 204 | |
| 205 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 206 | |
| 207 | object->length = ( |
| 208 | FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN + |
| 209 | FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN + |
| 210 | FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN |
| 211 | ) / 8; |
| 212 | |
| 213 | object->length += object->data.cue_sheet.num_tracks * ( |
| 214 | FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN + |
| 215 | FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN + |
| 216 | FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN + |
| 217 | FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + |
| 218 | FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + |
| 219 | FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN + |
| 220 | FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN |
| 221 | ) / 8; |
| 222 | |
| 223 | for(i = 0; i < object->data.cue_sheet.num_tracks; i++) { |
| 224 | object->length += object->data.cue_sheet.tracks[i].num_indices * ( |
| 225 | FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN + |
| 226 | FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN + |
| 227 | FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN |
| 228 | ) / 8; |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | static FLAC__StreamMetadata_CueSheet_Index *cuesheet_track_index_array_new_(unsigned num_indices) |
| 233 | { |
| 234 | FLAC__ASSERT(num_indices > 0); |
| 235 | |
| 236 | return (FLAC__StreamMetadata_CueSheet_Index*)calloc(num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index)); |
| 237 | } |
| 238 | |
| 239 | static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_new_(unsigned num_tracks) |
| 240 | { |
| 241 | FLAC__ASSERT(num_tracks > 0); |
| 242 | |
| 243 | return (FLAC__StreamMetadata_CueSheet_Track*)calloc(num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track)); |
| 244 | } |
| 245 | |
| 246 | static void cuesheet_track_array_delete_(FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks) |
| 247 | { |
| 248 | unsigned i; |
| 249 | |
| 250 | FLAC__ASSERT(0 != object_array && num_tracks > 0); |
| 251 | |
| 252 | for(i = 0; i < num_tracks; i++) { |
| 253 | if(0 != object_array[i].indices) { |
| 254 | FLAC__ASSERT(object_array[i].num_indices > 0); |
| 255 | free(object_array[i].indices); |
| 256 | } |
| 257 | } |
| 258 | |
| 259 | if(0 != object_array) |
| 260 | free(object_array); |
| 261 | } |
| 262 | |
| 263 | static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_copy_(const FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks) |
| 264 | { |
| 265 | FLAC__StreamMetadata_CueSheet_Track *return_array; |
| 266 | |
| 267 | FLAC__ASSERT(0 != object_array); |
| 268 | FLAC__ASSERT(num_tracks > 0); |
| 269 | |
| 270 | return_array = cuesheet_track_array_new_(num_tracks); |
| 271 | |
| 272 | if(0 != return_array) { |
| 273 | unsigned i; |
| 274 | |
| 275 | for(i = 0; i < num_tracks; i++) { |
| 276 | if(!copy_track_(return_array+i, object_array+i)) { |
| 277 | cuesheet_track_array_delete_(return_array, num_tracks); |
| 278 | return 0; |
| 279 | } |
| 280 | } |
| 281 | } |
| 282 | |
| 283 | return return_array; |
| 284 | } |
| 285 | |
| 286 | static FLAC__bool cuesheet_set_track_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_CueSheet_Track *dest, const FLAC__StreamMetadata_CueSheet_Track *src, FLAC__bool copy) |
| 287 | { |
| 288 | FLAC__StreamMetadata_CueSheet_Index *save; |
| 289 | |
| 290 | FLAC__ASSERT(0 != object); |
| 291 | FLAC__ASSERT(0 != dest); |
| 292 | FLAC__ASSERT(0 != src); |
| 293 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 294 | FLAC__ASSERT((0 != src->indices && src->num_indices > 0) || (0 == src->indices && src->num_indices == 0)); |
| 295 | /*@@@@ for docs, note that there is no "&& copy == false" at the end here ^^^ which will filter up */ |
| 296 | |
| 297 | save = dest->indices; |
| 298 | |
| 299 | /* do the copy first so that if we fail we leave the object untouched */ |
| 300 | if(copy) { |
| 301 | if(!copy_track_(dest, src)) |
| 302 | return false; |
| 303 | } |
| 304 | else { |
| 305 | *dest = *src; |
| 306 | } |
| 307 | |
| 308 | if(0 != save) |
| 309 | free(save); |
| 310 | |
| 311 | cuesheet_calculate_length_(object); |
| 312 | return true; |
| 313 | } |
| 314 | |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 315 | |
| 316 | /**************************************************************************** |
| 317 | * |
| 318 | * Metadata object routines |
| 319 | * |
| 320 | ***************************************************************************/ |
| 321 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 322 | FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_new(FLAC__MetadataType type) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 323 | { |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 324 | FLAC__StreamMetadata *object = (FLAC__StreamMetadata*)calloc(1, sizeof(FLAC__StreamMetadata)); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 325 | if(0 != object) { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 326 | object->is_last = false; |
| 327 | object->type = type; |
| 328 | switch(type) { |
| 329 | case FLAC__METADATA_TYPE_STREAMINFO: |
| 330 | object->length = FLAC__STREAM_METADATA_STREAMINFO_LENGTH; |
| 331 | break; |
| 332 | case FLAC__METADATA_TYPE_PADDING: |
| 333 | break; |
| 334 | case FLAC__METADATA_TYPE_APPLICATION: |
| 335 | object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8; |
| 336 | break; |
| 337 | case FLAC__METADATA_TYPE_SEEKTABLE: |
| 338 | break; |
| 339 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 340 | { |
| 341 | object->data.vorbis_comment.vendor_string.length = (unsigned)strlen(FLAC__VENDOR_STRING); |
| 342 | if(!copy_bytes_(&object->data.vorbis_comment.vendor_string.entry, (const FLAC__byte*)FLAC__VENDOR_STRING, object->data.vorbis_comment.vendor_string.length)) { |
| 343 | free(object); |
| 344 | return 0; |
| 345 | } |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame^] | 346 | vorbiscomment_calculate_length_(object); |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 347 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 348 | break; |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame^] | 349 | case FLAC__METADATA_TYPE_CUESHEET: |
| 350 | cuesheet_calculate_length_(object); |
| 351 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 352 | default: |
| 353 | /* double protection: */ |
| 354 | FLAC__ASSERT(0); |
| 355 | free(object); |
| 356 | return 0; |
| 357 | } |
| 358 | } |
| 359 | |
| 360 | return object; |
| 361 | } |
| 362 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 363 | FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_clone(const FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 364 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 365 | FLAC__StreamMetadata *to; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 366 | |
| 367 | FLAC__ASSERT(0 != object); |
| 368 | |
| 369 | if(0 != (to = FLAC__metadata_object_new(object->type))) { |
| 370 | to->is_last = object->is_last; |
| 371 | to->type = object->type; |
| 372 | to->length = object->length; |
| 373 | switch(to->type) { |
| 374 | case FLAC__METADATA_TYPE_STREAMINFO: |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 375 | memcpy(&to->data.stream_info, &object->data.stream_info, sizeof(FLAC__StreamMetadata_StreamInfo)); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 376 | break; |
| 377 | case FLAC__METADATA_TYPE_PADDING: |
| 378 | break; |
| 379 | case FLAC__METADATA_TYPE_APPLICATION: |
| 380 | memcpy(&to->data.application.id, &object->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8); |
| 381 | if(!copy_bytes_(&to->data.application.data, object->data.application.data, object->length - FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8)) { |
| 382 | FLAC__metadata_object_delete(to); |
| 383 | return 0; |
| 384 | } |
| 385 | break; |
| 386 | case FLAC__METADATA_TYPE_SEEKTABLE: |
| 387 | to->data.seek_table.num_points = object->data.seek_table.num_points; |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 388 | if(!copy_bytes_((FLAC__byte**)&to->data.seek_table.points, (FLAC__byte*)object->data.seek_table.points, object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint))) { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 389 | FLAC__metadata_object_delete(to); |
| 390 | return 0; |
| 391 | } |
| 392 | break; |
| 393 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 394 | if(0 != to->data.vorbis_comment.vendor_string.entry) |
| 395 | free(to->data.vorbis_comment.vendor_string.entry); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 396 | if(!copy_vcentry_(&to->data.vorbis_comment.vendor_string, &object->data.vorbis_comment.vendor_string)) { |
| 397 | FLAC__metadata_object_delete(to); |
| 398 | return 0; |
| 399 | } |
| 400 | if(object->data.vorbis_comment.num_comments == 0) { |
| 401 | FLAC__ASSERT(0 == object->data.vorbis_comment.comments); |
| 402 | to->data.vorbis_comment.comments = 0; |
| 403 | } |
| 404 | else { |
| 405 | FLAC__ASSERT(0 != object->data.vorbis_comment.comments); |
| 406 | to->data.vorbis_comment.comments = vorbiscomment_entry_array_copy_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments); |
| 407 | if(0 == to->data.vorbis_comment.comments) { |
| 408 | FLAC__metadata_object_delete(to); |
| 409 | return 0; |
| 410 | } |
| 411 | } |
| 412 | to->data.vorbis_comment.num_comments = object->data.vorbis_comment.num_comments; |
| 413 | break; |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame^] | 414 | case FLAC__METADATA_TYPE_CUESHEET: |
| 415 | memcpy(&to->data.cue_sheet, &object->data.cue_sheet, sizeof(FLAC__StreamMetadata_CueSheet)); |
| 416 | if(object->data.cue_sheet.num_tracks == 0) { |
| 417 | FLAC__ASSERT(0 == object->data.cue_sheet.tracks); |
| 418 | } |
| 419 | else { |
| 420 | FLAC__ASSERT(0 != object->data.cue_sheet.tracks); |
| 421 | to->data.cue_sheet.tracks = cuesheet_track_array_copy_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks); |
| 422 | if(0 == to->data.cue_sheet.tracks) { |
| 423 | FLAC__metadata_object_delete(to); |
| 424 | return 0; |
| 425 | } |
| 426 | } |
| 427 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 428 | default: |
| 429 | /* double protection: */ |
| 430 | FLAC__ASSERT(0); |
| 431 | free(to); |
| 432 | return 0; |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | return to; |
| 437 | } |
| 438 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 439 | void FLAC__metadata_object_delete_data(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 440 | { |
| 441 | FLAC__ASSERT(0 != object); |
| 442 | |
| 443 | switch(object->type) { |
| 444 | case FLAC__METADATA_TYPE_STREAMINFO: |
| 445 | case FLAC__METADATA_TYPE_PADDING: |
| 446 | break; |
| 447 | case FLAC__METADATA_TYPE_APPLICATION: |
| 448 | if(0 != object->data.application.data) |
| 449 | free(object->data.application.data); |
| 450 | break; |
| 451 | case FLAC__METADATA_TYPE_SEEKTABLE: |
| 452 | if(0 != object->data.seek_table.points) |
| 453 | free(object->data.seek_table.points); |
| 454 | break; |
| 455 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
| 456 | if(0 != object->data.vorbis_comment.vendor_string.entry) |
| 457 | free(object->data.vorbis_comment.vendor_string.entry); |
| 458 | if(0 != object->data.vorbis_comment.comments) { |
| 459 | FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0); |
| 460 | vorbiscomment_entry_array_delete_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments); |
| 461 | } |
| 462 | break; |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame^] | 463 | case FLAC__METADATA_TYPE_CUESHEET: |
| 464 | if(0 != object->data.cue_sheet.tracks) { |
| 465 | FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0); |
| 466 | cuesheet_track_array_delete_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks); |
| 467 | } |
| 468 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 469 | default: |
| 470 | FLAC__ASSERT(0); |
| 471 | } |
| 472 | } |
| 473 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 474 | FLAC_API void FLAC__metadata_object_delete(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 475 | { |
| 476 | FLAC__metadata_object_delete_data(object); |
| 477 | free(object); |
| 478 | } |
| 479 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 480 | static FLAC__bool compare_block_data_streaminfo_(const FLAC__StreamMetadata_StreamInfo *block1, const FLAC__StreamMetadata_StreamInfo *block2) |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 481 | { |
| 482 | if(block1->min_blocksize != block2->min_blocksize) |
| 483 | return false; |
| 484 | if(block1->max_blocksize != block2->max_blocksize) |
| 485 | return false; |
| 486 | if(block1->min_framesize != block2->min_framesize) |
| 487 | return false; |
| 488 | if(block1->max_framesize != block2->max_framesize) |
| 489 | return false; |
| 490 | if(block1->sample_rate != block2->sample_rate) |
| 491 | return false; |
| 492 | if(block1->channels != block2->channels) |
| 493 | return false; |
| 494 | if(block1->bits_per_sample != block2->bits_per_sample) |
| 495 | return false; |
| 496 | if(block1->total_samples != block2->total_samples) |
| 497 | return false; |
| 498 | if(0 != memcmp(block1->md5sum, block2->md5sum, 16)) |
| 499 | return false; |
| 500 | return true; |
| 501 | } |
| 502 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 503 | static FLAC__bool compare_block_data_application_(const FLAC__StreamMetadata_Application *block1, const FLAC__StreamMetadata_Application *block2, unsigned block_length) |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 504 | { |
| 505 | FLAC__ASSERT(0 != block1); |
| 506 | FLAC__ASSERT(0 != block2); |
| 507 | FLAC__ASSERT(block_length >= sizeof(block1->id)); |
| 508 | |
| 509 | if(0 != memcmp(block1->id, block2->id, sizeof(block1->id))) |
| 510 | return false; |
| 511 | if(0 != block1->data && 0 != block2->data) |
| 512 | return 0 == memcmp(block1->data, block2->data, block_length - sizeof(block1->id)); |
| 513 | else |
| 514 | return block1->data == block2->data; |
| 515 | } |
| 516 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 517 | static FLAC__bool compare_block_data_seektable_(const FLAC__StreamMetadata_SeekTable *block1, const FLAC__StreamMetadata_SeekTable *block2) |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 518 | { |
| 519 | unsigned i; |
| 520 | |
| 521 | FLAC__ASSERT(0 != block1); |
| 522 | FLAC__ASSERT(0 != block2); |
| 523 | |
| 524 | if(block1->num_points != block2->num_points) |
| 525 | return false; |
| 526 | |
| 527 | if(0 != block1->points && 0 != block2->points) { |
| 528 | for(i = 0; i < block1->num_points; i++) { |
| 529 | if(block1->points[i].sample_number != block2->points[i].sample_number) |
| 530 | return false; |
| 531 | if(block1->points[i].stream_offset != block2->points[i].stream_offset) |
| 532 | return false; |
| 533 | if(block1->points[i].frame_samples != block2->points[i].frame_samples) |
| 534 | return false; |
| 535 | } |
| 536 | return true; |
| 537 | } |
| 538 | else |
| 539 | return block1->points == block2->points; |
| 540 | } |
| 541 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 542 | static FLAC__bool compare_block_data_vorbiscomment_(const FLAC__StreamMetadata_VorbisComment *block1, const FLAC__StreamMetadata_VorbisComment *block2) |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 543 | { |
| 544 | unsigned i; |
| 545 | |
| 546 | if(block1->vendor_string.length != block2->vendor_string.length) |
| 547 | return false; |
| 548 | |
| 549 | if(0 != block1->vendor_string.entry && 0 != block2->vendor_string.entry) { |
| 550 | if(0 != memcmp(block1->vendor_string.entry, block2->vendor_string.entry, block1->vendor_string.length)) |
| 551 | return false; |
| 552 | } |
| 553 | else if(block1->vendor_string.entry != block2->vendor_string.entry) |
| 554 | return false; |
| 555 | |
| 556 | if(block1->num_comments != block2->num_comments) |
| 557 | return false; |
| 558 | |
| 559 | for(i = 0; i < block1->num_comments; i++) { |
| 560 | if(0 != block1->comments[i].entry && 0 != block2->comments[i].entry) { |
| 561 | if(0 != memcmp(block1->comments[i].entry, block2->comments[i].entry, block1->comments[i].length)) |
| 562 | return false; |
| 563 | } |
| 564 | else if(block1->comments[i].entry != block2->comments[i].entry) |
| 565 | return false; |
| 566 | } |
| 567 | return true; |
| 568 | } |
| 569 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame^] | 570 | static FLAC__bool compare_block_data_cuesheet_(const FLAC__StreamMetadata_CueSheet *block1, const FLAC__StreamMetadata_CueSheet *block2) |
| 571 | { |
| 572 | unsigned i, j; |
| 573 | |
| 574 | if(0 != strcmp(block1->media_catalog_number, block2->media_catalog_number)) |
| 575 | return false; |
| 576 | |
| 577 | if(block1->lead_in != block2->lead_in) |
| 578 | return false; |
| 579 | |
| 580 | if(block1->num_tracks != block2->num_tracks) |
| 581 | return false; |
| 582 | |
| 583 | if(0 != block1->tracks && 0 != block2->tracks) { |
| 584 | FLAC__ASSERT(block1->num_tracks > 0); |
| 585 | for(i = 0; i < block1->num_tracks; i++) { |
| 586 | if(block1->tracks[i].offset != block2->tracks[i].offset) |
| 587 | return false; |
| 588 | if(block1->tracks[i].number != block2->tracks[i].number) |
| 589 | return false; |
| 590 | if(0 != memcmp(block1->tracks[i].isrc, block2->tracks[i].isrc, sizeof(block1->tracks[i].isrc))) |
| 591 | return false; |
| 592 | if(block1->tracks[i].type != block2->tracks[i].type) |
| 593 | return false; |
| 594 | if(block1->tracks[i].pre_emphasis != block2->tracks[i].pre_emphasis) |
| 595 | return false; |
| 596 | if(block1->tracks[i].num_indices != block2->tracks[i].num_indices) |
| 597 | return false; |
| 598 | if(0 != block1->tracks[i].indices && 0 != block2->tracks[i].indices) { |
| 599 | FLAC__ASSERT(block1->tracks[i].num_indices > 0); |
| 600 | for(j = 0; j < block1->tracks[i].num_indices; j++) { |
| 601 | if(block1->tracks[i].indices[j].offset != block2->tracks[i].indices[j].offset) |
| 602 | return false; |
| 603 | if(block1->tracks[i].indices[j].number != block2->tracks[i].indices[j].number) |
| 604 | return false; |
| 605 | } |
| 606 | } |
| 607 | else if(block1->tracks[i].indices != block2->tracks[i].indices) |
| 608 | return false; |
| 609 | } |
| 610 | } |
| 611 | else if(block1->tracks != block2->tracks) |
| 612 | return false; |
| 613 | return true; |
| 614 | } |
| 615 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 616 | FLAC_API FLAC__bool FLAC__metadata_object_is_equal(const FLAC__StreamMetadata *block1, const FLAC__StreamMetadata *block2) |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 617 | { |
Josh Coalson | d8ab346 | 2002-07-11 05:54:05 +0000 | [diff] [blame] | 618 | FLAC__ASSERT(0 != block1); |
| 619 | FLAC__ASSERT(0 != block2); |
| 620 | |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 621 | if(block1->type != block2->type) { |
| 622 | return false; |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 623 | } |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 624 | if(block1->is_last != block2->is_last) { |
| 625 | return false; |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 626 | } |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 627 | if(block1->length != block2->length) { |
| 628 | return false; |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 629 | } |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 630 | switch(block1->type) { |
| 631 | case FLAC__METADATA_TYPE_STREAMINFO: |
| 632 | return compare_block_data_streaminfo_(&block1->data.stream_info, &block2->data.stream_info); |
| 633 | case FLAC__METADATA_TYPE_PADDING: |
| 634 | return true; /* we don't compare the padding guts */ |
| 635 | case FLAC__METADATA_TYPE_APPLICATION: |
| 636 | return compare_block_data_application_(&block1->data.application, &block2->data.application, block1->length); |
| 637 | case FLAC__METADATA_TYPE_SEEKTABLE: |
| 638 | return compare_block_data_seektable_(&block1->data.seek_table, &block2->data.seek_table); |
| 639 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
| 640 | return compare_block_data_vorbiscomment_(&block1->data.vorbis_comment, &block2->data.vorbis_comment); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame^] | 641 | case FLAC__METADATA_TYPE_CUESHEET: |
| 642 | return compare_block_data_cuesheet_(&block1->data.cue_sheet, &block2->data.cue_sheet); |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 643 | default: |
| 644 | FLAC__ASSERT(0); |
| 645 | return false; |
| 646 | } |
| 647 | } |
| 648 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 649 | FLAC_API FLAC__bool FLAC__metadata_object_application_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, unsigned length, FLAC__bool copy) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 650 | { |
| 651 | FLAC__byte *save; |
| 652 | |
Josh Coalson | d8ab346 | 2002-07-11 05:54:05 +0000 | [diff] [blame] | 653 | FLAC__ASSERT(0 != object); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 654 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_APPLICATION); |
| 655 | FLAC__ASSERT((0 != data && length > 0) || (0 == data && length == 0 && copy == false)); |
| 656 | |
| 657 | save = object->data.application.data; |
| 658 | |
| 659 | /* do the copy first so that if we fail we leave the object untouched */ |
| 660 | if(copy) { |
| 661 | if(!copy_bytes_(&object->data.application.data, data, length)) |
| 662 | return false; |
| 663 | } |
| 664 | else { |
| 665 | object->data.application.data = data; |
| 666 | } |
| 667 | |
| 668 | if(0 != save) |
| 669 | free(save); |
| 670 | |
| 671 | object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8 + length; |
| 672 | return true; |
| 673 | } |
| 674 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 675 | FLAC_API FLAC__bool FLAC__metadata_object_seektable_resize_points(FLAC__StreamMetadata *object, unsigned new_num_points) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 676 | { |
| 677 | FLAC__ASSERT(0 != object); |
| 678 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 679 | |
| 680 | if(0 == object->data.seek_table.points) { |
| 681 | FLAC__ASSERT(object->data.seek_table.num_points == 0); |
| 682 | if(0 == new_num_points) |
| 683 | return true; |
| 684 | else if(0 == (object->data.seek_table.points = seekpoint_array_new_(new_num_points))) |
| 685 | return false; |
| 686 | } |
| 687 | else { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 688 | const unsigned old_size = object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint); |
| 689 | const unsigned new_size = new_num_points * sizeof(FLAC__StreamMetadata_SeekPoint); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 690 | |
| 691 | FLAC__ASSERT(object->data.seek_table.num_points > 0); |
| 692 | |
| 693 | if(new_size == 0) { |
| 694 | free(object->data.seek_table.points); |
| 695 | object->data.seek_table.points = 0; |
| 696 | } |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 697 | else if(0 == (object->data.seek_table.points = (FLAC__StreamMetadata_SeekPoint*)realloc(object->data.seek_table.points, new_size))) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 698 | return false; |
| 699 | |
| 700 | /* if growing, set new elements to placeholders */ |
| 701 | if(new_size > old_size) { |
| 702 | unsigned i; |
| 703 | for(i = object->data.seek_table.num_points; i < new_num_points; i++) { |
| 704 | object->data.seek_table.points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER; |
| 705 | object->data.seek_table.points[i].stream_offset = 0; |
| 706 | object->data.seek_table.points[i].frame_samples = 0; |
| 707 | } |
| 708 | } |
| 709 | } |
| 710 | |
| 711 | object->data.seek_table.num_points = new_num_points; |
| 712 | |
| 713 | seektable_calculate_length_(object); |
| 714 | return true; |
| 715 | } |
| 716 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 717 | FLAC_API void FLAC__metadata_object_seektable_set_point(FLAC__StreamMetadata *object, unsigned point_num, FLAC__StreamMetadata_SeekPoint point) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 718 | { |
| 719 | FLAC__ASSERT(0 != object); |
| 720 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame^] | 721 | FLAC__ASSERT(point_num < object->data.seek_table.num_points); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 722 | |
| 723 | object->data.seek_table.points[point_num] = point; |
| 724 | } |
| 725 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 726 | FLAC_API FLAC__bool FLAC__metadata_object_seektable_insert_point(FLAC__StreamMetadata *object, unsigned point_num, FLAC__StreamMetadata_SeekPoint point) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 727 | { |
| 728 | int i; |
| 729 | |
| 730 | FLAC__ASSERT(0 != object); |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 731 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame^] | 732 | FLAC__ASSERT(point_num <= object->data.seek_table.num_points); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 733 | |
| 734 | if(!FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points+1)) |
| 735 | return false; |
| 736 | |
| 737 | /* move all points >= point_num forward one space */ |
| 738 | for(i = (int)object->data.seek_table.num_points-1; i > (int)point_num; i--) |
| 739 | object->data.seek_table.points[i] = object->data.seek_table.points[i-1]; |
| 740 | |
| 741 | FLAC__metadata_object_seektable_set_point(object, point_num, point); |
| 742 | seektable_calculate_length_(object); |
| 743 | return true; |
| 744 | } |
| 745 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 746 | FLAC_API FLAC__bool FLAC__metadata_object_seektable_delete_point(FLAC__StreamMetadata *object, unsigned point_num) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 747 | { |
| 748 | unsigned i; |
| 749 | |
| 750 | FLAC__ASSERT(0 != object); |
| 751 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame^] | 752 | FLAC__ASSERT(point_num < object->data.seek_table.num_points); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 753 | |
| 754 | /* move all points > point_num backward one space */ |
| 755 | for(i = point_num; i < object->data.seek_table.num_points-1; i++) |
| 756 | object->data.seek_table.points[i] = object->data.seek_table.points[i+1]; |
| 757 | |
| 758 | return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points-1); |
| 759 | } |
| 760 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 761 | FLAC_API FLAC__bool FLAC__metadata_object_seektable_is_legal(const FLAC__StreamMetadata *object) |
Josh Coalson | 28e08d8 | 2002-06-05 05:56:41 +0000 | [diff] [blame] | 762 | { |
Josh Coalson | 28e08d8 | 2002-06-05 05:56:41 +0000 | [diff] [blame] | 763 | FLAC__ASSERT(0 != object); |
| 764 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 765 | |
Josh Coalson | 0833f34 | 2002-07-15 05:31:55 +0000 | [diff] [blame] | 766 | return FLAC__format_seektable_is_legal(&object->data.seek_table); |
Josh Coalson | 28e08d8 | 2002-06-05 05:56:41 +0000 | [diff] [blame] | 767 | } |
| 768 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 769 | FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_placeholders(FLAC__StreamMetadata *object, unsigned num) |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 770 | { |
| 771 | FLAC__ASSERT(0 != object); |
| 772 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 773 | |
| 774 | if(num > 0) |
| 775 | /* WATCHOUT: we rely on the fact that growing the array adds PLACEHOLDERS at the end */ |
| 776 | return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points + num); |
| 777 | else |
| 778 | return true; |
| 779 | } |
| 780 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 781 | FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_point(FLAC__StreamMetadata *object, FLAC__uint64 sample_number) |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 782 | { |
| 783 | FLAC__StreamMetadata_SeekTable *seek_table; |
| 784 | |
| 785 | FLAC__ASSERT(0 != object); |
| 786 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 787 | |
| 788 | seek_table = &object->data.seek_table; |
| 789 | |
| 790 | if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + 1)) |
| 791 | return false; |
| 792 | |
| 793 | seek_table->points[seek_table->num_points - 1].sample_number = sample_number; |
| 794 | seek_table->points[seek_table->num_points - 1].stream_offset = 0; |
| 795 | seek_table->points[seek_table->num_points - 1].frame_samples = 0; |
| 796 | |
| 797 | return true; |
| 798 | } |
| 799 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 800 | FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_points(FLAC__StreamMetadata *object, FLAC__uint64 sample_numbers[], unsigned num) |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 801 | { |
| 802 | FLAC__ASSERT(0 != object); |
| 803 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 804 | FLAC__ASSERT(0 != sample_numbers || num == 0); |
| 805 | |
| 806 | if(num > 0) { |
| 807 | FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table; |
| 808 | unsigned i, j; |
| 809 | |
| 810 | i = seek_table->num_points; |
| 811 | |
| 812 | if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num)) |
| 813 | return false; |
| 814 | |
| 815 | for(j = 0; j < num; i++, j++) { |
| 816 | seek_table->points[i].sample_number = sample_numbers[j]; |
| 817 | seek_table->points[i].stream_offset = 0; |
| 818 | seek_table->points[i].frame_samples = 0; |
| 819 | } |
| 820 | } |
| 821 | |
| 822 | return true; |
| 823 | } |
| 824 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 825 | FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points(FLAC__StreamMetadata *object, unsigned num, FLAC__uint64 total_samples) |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 826 | { |
| 827 | FLAC__ASSERT(0 != object); |
| 828 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 829 | FLAC__ASSERT(total_samples > 0); |
| 830 | |
| 831 | if(num > 0) { |
| 832 | FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table; |
| 833 | unsigned i, j; |
| 834 | |
| 835 | i = seek_table->num_points; |
| 836 | |
| 837 | if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num)) |
| 838 | return false; |
| 839 | |
| 840 | for(j = 0; j < num; i++, j++) { |
| 841 | seek_table->points[i].sample_number = total_samples * (FLAC__uint64)j / (FLAC__uint64)num; |
| 842 | seek_table->points[i].stream_offset = 0; |
| 843 | seek_table->points[i].frame_samples = 0; |
| 844 | } |
| 845 | } |
| 846 | |
| 847 | return true; |
| 848 | } |
| 849 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 850 | FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_sort(FLAC__StreamMetadata *object, FLAC__bool compact) |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 851 | { |
| 852 | unsigned unique; |
| 853 | |
| 854 | FLAC__ASSERT(0 != object); |
| 855 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 856 | |
| 857 | unique = FLAC__format_seektable_sort(&object->data.seek_table); |
| 858 | |
| 859 | return !compact || FLAC__metadata_object_seektable_resize_points(object, unique); |
| 860 | } |
| 861 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 862 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_vendor_string(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 863 | { |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 864 | return vorbiscomment_set_entry_(object, &object->data.vorbis_comment.vendor_string, &entry, copy); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 865 | } |
| 866 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 867 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_resize_comments(FLAC__StreamMetadata *object, unsigned new_num_comments) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 868 | { |
| 869 | FLAC__ASSERT(0 != object); |
| 870 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 871 | |
| 872 | if(0 == object->data.vorbis_comment.comments) { |
| 873 | FLAC__ASSERT(object->data.vorbis_comment.num_comments == 0); |
| 874 | if(0 == new_num_comments) |
| 875 | return true; |
| 876 | else if(0 == (object->data.vorbis_comment.comments = vorbiscomment_entry_array_new_(new_num_comments))) |
| 877 | return false; |
| 878 | } |
| 879 | else { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 880 | const unsigned old_size = object->data.vorbis_comment.num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry); |
| 881 | const unsigned new_size = new_num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 882 | |
| 883 | FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0); |
| 884 | |
| 885 | /* if shrinking, free the truncated entries */ |
| 886 | if(new_num_comments < object->data.vorbis_comment.num_comments) { |
| 887 | unsigned i; |
| 888 | for(i = new_num_comments; i < object->data.vorbis_comment.num_comments; i++) |
| 889 | if(0 != object->data.vorbis_comment.comments[i].entry) |
| 890 | free(object->data.vorbis_comment.comments[i].entry); |
| 891 | } |
| 892 | |
| 893 | if(new_size == 0) { |
| 894 | free(object->data.vorbis_comment.comments); |
| 895 | object->data.vorbis_comment.comments = 0; |
| 896 | } |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 897 | else if(0 == (object->data.vorbis_comment.comments = (FLAC__StreamMetadata_VorbisComment_Entry*)realloc(object->data.vorbis_comment.comments, new_size))) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 898 | return false; |
| 899 | |
| 900 | /* if growing, zero all the length/pointers of new elements */ |
| 901 | if(new_size > old_size) |
| 902 | memset(object->data.vorbis_comment.comments + object->data.vorbis_comment.num_comments, 0, new_size - old_size); |
| 903 | } |
| 904 | |
| 905 | object->data.vorbis_comment.num_comments = new_num_comments; |
| 906 | |
| 907 | vorbiscomment_calculate_length_(object); |
| 908 | return true; |
| 909 | } |
| 910 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 911 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_comment(FLAC__StreamMetadata *object, unsigned comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 912 | { |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 913 | return vorbiscomment_set_entry_(object, &object->data.vorbis_comment.comments[comment_num], &entry, copy); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 914 | } |
| 915 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 916 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_insert_comment(FLAC__StreamMetadata *object, unsigned comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 917 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 918 | FLAC__StreamMetadata_VorbisComment *vc; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 919 | |
| 920 | FLAC__ASSERT(0 != object); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 921 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame^] | 922 | FLAC__ASSERT(comment_num <= object->data.vorbis_comment.num_comments); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 923 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 924 | vc = &object->data.vorbis_comment; |
| 925 | |
| 926 | if(!FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments+1)) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 927 | return false; |
| 928 | |
| 929 | /* move all comments >= comment_num forward one space */ |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 930 | memmove(&vc->comments[comment_num+1], &vc->comments[comment_num], sizeof(FLAC__StreamMetadata_VorbisComment_Entry)*(vc->num_comments-1-comment_num)); |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 931 | vc->comments[comment_num].length = 0; |
| 932 | vc->comments[comment_num].entry = 0; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 933 | |
| 934 | return FLAC__metadata_object_vorbiscomment_set_comment(object, comment_num, entry, copy); |
| 935 | } |
| 936 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 937 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_delete_comment(FLAC__StreamMetadata *object, unsigned comment_num) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 938 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 939 | FLAC__StreamMetadata_VorbisComment *vc; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 940 | |
| 941 | FLAC__ASSERT(0 != object); |
| 942 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame^] | 943 | FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 944 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 945 | vc = &object->data.vorbis_comment; |
| 946 | |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 947 | /* free the comment at comment_num */ |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 948 | if(0 != vc->comments[comment_num].entry) |
| 949 | free(vc->comments[comment_num].entry); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 950 | |
| 951 | /* move all comments > comment_num backward one space */ |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 952 | memmove(&vc->comments[comment_num], &vc->comments[comment_num+1], sizeof(FLAC__StreamMetadata_VorbisComment_Entry)*(vc->num_comments-comment_num-1)); |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 953 | vc->comments[vc->num_comments-1].length = 0; |
| 954 | vc->comments[vc->num_comments-1].entry = 0; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 955 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 956 | return FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments-1); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 957 | } |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 958 | |
| 959 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_matches(const FLAC__StreamMetadata_VorbisComment_Entry *entry, const char *field_name, unsigned field_name_length) |
| 960 | { |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 961 | const FLAC__byte *eq = (FLAC__byte*)memchr(entry->entry, '=', entry->length); |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 962 | #if defined _MSC_VER || defined __MINGW32__ |
| 963 | #define FLAC__STRNCASECMP strnicmp |
| 964 | #else |
| 965 | #define FLAC__STRNCASECMP strncasecmp |
| 966 | #endif |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 967 | return (0 != eq && (unsigned)(eq-entry->entry) == field_name_length && 0 == FLAC__STRNCASECMP(field_name, (const char *)entry->entry, field_name_length)); |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 968 | #undef FLAC__STRNCASECMP |
| 969 | } |
| 970 | |
Josh Coalson | b667e70 | 2002-11-05 07:24:33 +0000 | [diff] [blame] | 971 | FLAC_API int FLAC__metadata_object_vorbiscomment_find_entry_from(const FLAC__StreamMetadata *object, unsigned offset, const char *field_name) |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 972 | { |
| 973 | const unsigned field_name_length = strlen(field_name); |
| 974 | unsigned i; |
| 975 | |
| 976 | FLAC__ASSERT(0 != object); |
| 977 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 978 | |
| 979 | for(i = offset; i < object->data.vorbis_comment.num_comments; i++) { |
| 980 | if(FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments + i, field_name, field_name_length)) |
| 981 | return (int)i; |
| 982 | } |
| 983 | |
| 984 | return -1; |
| 985 | } |
| 986 | |
| 987 | FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entry_matching(FLAC__StreamMetadata *object, const char *field_name) |
| 988 | { |
| 989 | const unsigned field_name_length = strlen(field_name); |
| 990 | unsigned i; |
| 991 | |
| 992 | FLAC__ASSERT(0 != object); |
| 993 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 994 | |
| 995 | for(i = 0; i < object->data.vorbis_comment.num_comments; i++) { |
| 996 | if(FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments + i, field_name, field_name_length)) { |
| 997 | if(!FLAC__metadata_object_vorbiscomment_delete_comment(object, i)) |
| 998 | return -1; |
| 999 | else |
| 1000 | return 1; |
| 1001 | } |
| 1002 | } |
| 1003 | |
| 1004 | return 0; |
| 1005 | } |
| 1006 | |
| 1007 | FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entries_matching(FLAC__StreamMetadata *object, const char *field_name) |
| 1008 | { |
| 1009 | FLAC__bool ok = true; |
| 1010 | unsigned matching = 0; |
| 1011 | const unsigned field_name_length = strlen(field_name); |
| 1012 | int i; |
| 1013 | |
| 1014 | FLAC__ASSERT(0 != object); |
| 1015 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 1016 | |
| 1017 | /* must delete from end to start otherwise it will interfere with our iteration */ |
| 1018 | for(i = (int)object->data.vorbis_comment.num_comments - 1; ok && i >= 0; i--) { |
| 1019 | if(FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments + i, field_name, field_name_length)) { |
| 1020 | matching++; |
| 1021 | ok &= FLAC__metadata_object_vorbiscomment_delete_comment(object, (unsigned)i); |
| 1022 | } |
| 1023 | } |
| 1024 | |
| 1025 | return ok? (int)matching : -1; |
| 1026 | } |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame^] | 1027 | |
| 1028 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_resize_indices(FLAC__StreamMetadata *object, unsigned track_num, unsigned new_num_indices) |
| 1029 | { |
| 1030 | FLAC__StreamMetadata_CueSheet_Track *track; |
| 1031 | FLAC__ASSERT(0 != object); |
| 1032 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1033 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1034 | |
| 1035 | track = &object->data.cue_sheet.tracks[track_num]; |
| 1036 | |
| 1037 | if(0 == track->indices) { |
| 1038 | FLAC__ASSERT(track->num_indices == 0); |
| 1039 | if(0 == new_num_indices) |
| 1040 | return true; |
| 1041 | else if(0 == (track->indices = cuesheet_track_index_array_new_(new_num_indices))) |
| 1042 | return false; |
| 1043 | } |
| 1044 | else { |
| 1045 | const unsigned old_size = track->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index); |
| 1046 | const unsigned new_size = new_num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index); |
| 1047 | |
| 1048 | FLAC__ASSERT(track->num_indices > 0); |
| 1049 | |
| 1050 | if(new_size == 0) { |
| 1051 | free(track->indices); |
| 1052 | track->indices = 0; |
| 1053 | } |
| 1054 | else if(0 == (track->indices = (FLAC__StreamMetadata_CueSheet_Index*)realloc(track->indices, new_size))) |
| 1055 | return false; |
| 1056 | |
| 1057 | /* if growing, zero all the lengths/pointers of new elements */ |
| 1058 | if(new_size > old_size) |
| 1059 | memset(track->indices + track->num_indices, 0, new_size - old_size); |
| 1060 | } |
| 1061 | |
| 1062 | track->num_indices = new_num_indices; |
| 1063 | |
| 1064 | cuesheet_calculate_length_(object); |
| 1065 | return true; |
| 1066 | } |
| 1067 | |
| 1068 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num, FLAC__StreamMetadata_CueSheet_Index index) |
| 1069 | { |
| 1070 | FLAC__StreamMetadata_CueSheet_Track *track; |
| 1071 | |
| 1072 | FLAC__ASSERT(0 != object); |
| 1073 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1074 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1075 | FLAC__ASSERT(index_num <= object->data.cue_sheet.tracks[track_num].num_indices); |
| 1076 | |
| 1077 | track = &object->data.cue_sheet.tracks[track_num]; |
| 1078 | |
| 1079 | if(!FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices+1)) |
| 1080 | return false; |
| 1081 | |
| 1082 | /* move all indices >= index_num forward one space */ |
| 1083 | memmove(&track->indices[index_num+1], &track->indices[index_num], sizeof(FLAC__StreamMetadata_CueSheet_Index)*(track->num_indices-1-index_num)); |
| 1084 | |
| 1085 | track->indices[index_num] = index; |
| 1086 | cuesheet_calculate_length_(object); |
| 1087 | return true; |
| 1088 | } |
| 1089 | |
| 1090 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_delete_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num) |
| 1091 | { |
| 1092 | FLAC__StreamMetadata_CueSheet_Track *track; |
| 1093 | |
| 1094 | FLAC__ASSERT(0 != object); |
| 1095 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1096 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1097 | FLAC__ASSERT(index_num < object->data.cue_sheet.tracks[track_num].num_indices); |
| 1098 | |
| 1099 | track = &object->data.cue_sheet.tracks[track_num]; |
| 1100 | |
| 1101 | /* move all indices > index_num backward one space */ |
| 1102 | memmove(&track->indices[index_num], &track->indices[index_num+1], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(track->num_indices-index_num-1)); |
| 1103 | |
| 1104 | FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices-1); |
| 1105 | cuesheet_calculate_length_(object); |
| 1106 | return true; |
| 1107 | } |
| 1108 | |
| 1109 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_resize_tracks(FLAC__StreamMetadata *object, unsigned new_num_tracks) |
| 1110 | { |
| 1111 | FLAC__ASSERT(0 != object); |
| 1112 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1113 | |
| 1114 | if(0 == object->data.cue_sheet.tracks) { |
| 1115 | FLAC__ASSERT(object->data.cue_sheet.num_tracks == 0); |
| 1116 | if(0 == new_num_tracks) |
| 1117 | return true; |
| 1118 | else if(0 == (object->data.cue_sheet.tracks = cuesheet_track_array_new_(new_num_tracks))) |
| 1119 | return false; |
| 1120 | } |
| 1121 | else { |
| 1122 | const unsigned old_size = object->data.cue_sheet.num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track); |
| 1123 | const unsigned new_size = new_num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track); |
| 1124 | |
| 1125 | FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0); |
| 1126 | |
| 1127 | /* if shrinking, free the truncated entries */ |
| 1128 | if(new_num_tracks < object->data.cue_sheet.num_tracks) { |
| 1129 | unsigned i; |
| 1130 | for(i = new_num_tracks; i < object->data.cue_sheet.num_tracks; i++) |
| 1131 | if(0 != object->data.cue_sheet.tracks[i].indices) |
| 1132 | free(object->data.cue_sheet.tracks[i].indices); |
| 1133 | } |
| 1134 | |
| 1135 | if(new_size == 0) { |
| 1136 | free(object->data.cue_sheet.tracks); |
| 1137 | object->data.cue_sheet.tracks = 0; |
| 1138 | } |
| 1139 | else if(0 == (object->data.cue_sheet.tracks = (FLAC__StreamMetadata_CueSheet_Track*)realloc(object->data.cue_sheet.tracks, new_size))) |
| 1140 | return false; |
| 1141 | |
| 1142 | /* if growing, zero all the lengths/pointers of new elements */ |
| 1143 | if(new_size > old_size) |
| 1144 | memset(object->data.cue_sheet.tracks + object->data.cue_sheet.num_tracks, 0, new_size - old_size); |
| 1145 | } |
| 1146 | |
| 1147 | object->data.cue_sheet.num_tracks = new_num_tracks; |
| 1148 | |
| 1149 | cuesheet_calculate_length_(object); |
| 1150 | return true; |
| 1151 | } |
| 1152 | |
| 1153 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_set_track(FLAC__StreamMetadata *object, unsigned track_num, FLAC__StreamMetadata_CueSheet_Track track, FLAC__bool copy) |
| 1154 | { |
| 1155 | return cuesheet_set_track_(object, &object->data.cue_sheet.tracks[track_num], &track, copy); |
| 1156 | } |
| 1157 | |
| 1158 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_track(FLAC__StreamMetadata *object, unsigned track_num, FLAC__StreamMetadata_CueSheet_Track track, FLAC__bool copy) |
| 1159 | { |
| 1160 | FLAC__StreamMetadata_CueSheet *cs; |
| 1161 | |
| 1162 | FLAC__ASSERT(0 != object); |
| 1163 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1164 | FLAC__ASSERT(track_num <= object->data.cue_sheet.num_tracks); |
| 1165 | |
| 1166 | cs = &object->data.cue_sheet; |
| 1167 | |
| 1168 | if(!FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks+1)) |
| 1169 | return false; |
| 1170 | |
| 1171 | /* move all tracks >= track_num forward one space */ |
| 1172 | memmove(&cs->tracks[track_num+1], &cs->tracks[track_num], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-1-track_num)); |
| 1173 | cs->tracks[track_num].num_indices = 0; |
| 1174 | cs->tracks[track_num].indices = 0; |
| 1175 | |
| 1176 | return FLAC__metadata_object_cuesheet_set_track(object, track_num, track, copy); |
| 1177 | } |
| 1178 | |
| 1179 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_delete_track(FLAC__StreamMetadata *object, unsigned track_num) |
| 1180 | { |
| 1181 | FLAC__StreamMetadata_CueSheet *cs; |
| 1182 | |
| 1183 | FLAC__ASSERT(0 != object); |
| 1184 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1185 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1186 | |
| 1187 | cs = &object->data.cue_sheet; |
| 1188 | |
| 1189 | /* free the track at track_num */ |
| 1190 | if(0 != cs->tracks[track_num].indices) |
| 1191 | free(cs->tracks[track_num].indices); |
| 1192 | |
| 1193 | /* move all tracks > track_num backward one space */ |
| 1194 | memmove(&cs->tracks[track_num], &cs->tracks[track_num+1], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-track_num-1)); |
| 1195 | cs->tracks[cs->num_tracks-1].num_indices = 0; |
| 1196 | cs->tracks[cs->num_tracks-1].indices = 0; |
| 1197 | |
| 1198 | return FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks-1); |
| 1199 | } |
| 1200 | |
| 1201 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_is_legal(const FLAC__StreamMetadata *object, FLAC__bool check_cd_da_subset, const char **violation) |
| 1202 | { |
| 1203 | FLAC__ASSERT(0 != object); |
| 1204 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1205 | |
| 1206 | return FLAC__format_cuesheet_is_legal(&object->data.cue_sheet, check_cd_da_subset, violation); |
| 1207 | } |