Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1 | /* libFLAC - Free Lossless Audio Codec library |
Josh Coalson | 9564390 | 2004-01-17 04:14:43 +0000 | [diff] [blame] | 2 | * Copyright (C) 2001,2002,2003,2004 Josh Coalson |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 3 | * |
Josh Coalson | afd8107 | 2003-01-31 23:34:56 +0000 | [diff] [blame] | 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 7 | * |
Josh Coalson | afd8107 | 2003-01-31 23:34:56 +0000 | [diff] [blame] | 8 | * - Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 10 | * |
Josh Coalson | afd8107 | 2003-01-31 23:34:56 +0000 | [diff] [blame] | 11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * - Neither the name of the Xiph.org Foundation nor the names of its |
| 16 | * contributors may be used to endorse or promote products derived from |
| 17 | * this software without specific prior written permission. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR |
| 23 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 24 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 25 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 26 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 27 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 28 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 29 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 30 | */ |
| 31 | |
| 32 | #include <stdlib.h> |
| 33 | #include <string.h> |
| 34 | |
| 35 | #include "private/metadata.h" |
| 36 | |
| 37 | #include "FLAC/assert.h" |
| 38 | |
| 39 | |
| 40 | /**************************************************************************** |
| 41 | * |
| 42 | * Local routines |
| 43 | * |
| 44 | ***************************************************************************/ |
| 45 | |
| 46 | static FLAC__bool copy_bytes_(FLAC__byte **to, const FLAC__byte *from, unsigned bytes) |
| 47 | { |
| 48 | if(bytes > 0 && 0 != from) { |
| 49 | FLAC__byte *x; |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 50 | if(0 == (x = (FLAC__byte*)malloc(bytes))) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 51 | return false; |
| 52 | memcpy(x, from, bytes); |
| 53 | *to = x; |
| 54 | } |
| 55 | else { |
| 56 | FLAC__ASSERT(0 == from); |
| 57 | FLAC__ASSERT(bytes == 0); |
| 58 | *to = 0; |
| 59 | } |
| 60 | return true; |
| 61 | } |
| 62 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 63 | static FLAC__bool ensure_null_terminated_(FLAC__byte **entry, unsigned length) |
| 64 | { |
| 65 | FLAC__byte *x = (FLAC__byte*)realloc(*entry, length+1); |
| 66 | if(0 != x) { |
| 67 | x[length] = '\0'; |
| 68 | *entry = x; |
| 69 | return true; |
| 70 | } |
| 71 | else |
| 72 | return false; |
| 73 | } |
| 74 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 75 | 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] | 76 | { |
| 77 | to->length = from->length; |
| 78 | if(0 == from->entry) { |
| 79 | FLAC__ASSERT(from->length == 0); |
| 80 | to->entry = 0; |
| 81 | } |
| 82 | else { |
| 83 | FLAC__byte *x; |
| 84 | FLAC__ASSERT(from->length > 0); |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 85 | if(0 == (x = (FLAC__byte*)malloc(from->length+1))) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 86 | return false; |
| 87 | memcpy(x, from->entry, from->length); |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 88 | x[from->length] = '\0'; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 89 | to->entry = x; |
| 90 | } |
| 91 | return true; |
| 92 | } |
| 93 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 94 | static FLAC__bool copy_track_(FLAC__StreamMetadata_CueSheet_Track *to, const FLAC__StreamMetadata_CueSheet_Track *from) |
| 95 | { |
| 96 | memcpy(to, from, sizeof(FLAC__StreamMetadata_CueSheet_Track)); |
| 97 | if(0 == from->indices) { |
| 98 | FLAC__ASSERT(from->num_indices == 0); |
| 99 | } |
| 100 | else { |
| 101 | FLAC__StreamMetadata_CueSheet_Index *x; |
| 102 | FLAC__ASSERT(from->num_indices > 0); |
| 103 | if(0 == (x = (FLAC__StreamMetadata_CueSheet_Index*)malloc(from->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index)))) |
| 104 | return false; |
| 105 | memcpy(x, from->indices, from->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index)); |
| 106 | to->indices = x; |
| 107 | } |
| 108 | return true; |
| 109 | } |
| 110 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 111 | static void seektable_calculate_length_(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 112 | { |
| 113 | FLAC__ASSERT(0 != object); |
| 114 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 115 | |
| 116 | object->length = object->data.seek_table.num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH; |
| 117 | } |
| 118 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 119 | static FLAC__StreamMetadata_SeekPoint *seekpoint_array_new_(unsigned num_points) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 120 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 121 | FLAC__StreamMetadata_SeekPoint *object_array; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 122 | |
| 123 | FLAC__ASSERT(num_points > 0); |
| 124 | |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 125 | object_array = (FLAC__StreamMetadata_SeekPoint*)malloc(num_points * sizeof(FLAC__StreamMetadata_SeekPoint)); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 126 | |
| 127 | if(0 != object_array) { |
| 128 | unsigned i; |
| 129 | for(i = 0; i < num_points; i++) { |
| 130 | object_array[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER; |
| 131 | object_array[i].stream_offset = 0; |
| 132 | object_array[i].frame_samples = 0; |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | return object_array; |
| 137 | } |
| 138 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 139 | static void vorbiscomment_calculate_length_(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 140 | { |
| 141 | unsigned i; |
| 142 | |
| 143 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 144 | |
| 145 | object->length = (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN) / 8; |
| 146 | object->length += object->data.vorbis_comment.vendor_string.length; |
| 147 | object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN) / 8; |
| 148 | for(i = 0; i < object->data.vorbis_comment.num_comments; i++) { |
| 149 | object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8); |
| 150 | object->length += object->data.vorbis_comment.comments[i].length; |
| 151 | } |
| 152 | } |
| 153 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 154 | static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_new_(unsigned num_comments) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 155 | { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 156 | FLAC__ASSERT(num_comments > 0); |
| 157 | |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 158 | 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] | 159 | } |
| 160 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 161 | 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] | 162 | { |
| 163 | unsigned i; |
| 164 | |
| 165 | FLAC__ASSERT(0 != object_array && num_comments > 0); |
| 166 | |
| 167 | for(i = 0; i < num_comments; i++) |
| 168 | if(0 != object_array[i].entry) |
| 169 | free(object_array[i].entry); |
| 170 | |
| 171 | if(0 != object_array) |
| 172 | free(object_array); |
| 173 | } |
| 174 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 175 | 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] | 176 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 177 | FLAC__StreamMetadata_VorbisComment_Entry *return_array; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 178 | |
| 179 | FLAC__ASSERT(0 != object_array); |
| 180 | FLAC__ASSERT(num_comments > 0); |
| 181 | |
| 182 | return_array = vorbiscomment_entry_array_new_(num_comments); |
| 183 | |
| 184 | if(0 != return_array) { |
| 185 | unsigned i; |
| 186 | |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 187 | for(i = 0; i < num_comments; i++) { |
| 188 | if(!copy_vcentry_(return_array+i, object_array+i)) { |
| 189 | vorbiscomment_entry_array_delete_(return_array, num_comments); |
| 190 | return 0; |
| 191 | } |
| 192 | } |
| 193 | } |
| 194 | |
| 195 | return return_array; |
| 196 | } |
| 197 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 198 | 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] | 199 | { |
| 200 | FLAC__byte *save; |
| 201 | |
| 202 | FLAC__ASSERT(0 != object); |
| 203 | FLAC__ASSERT(0 != dest); |
| 204 | FLAC__ASSERT(0 != src); |
| 205 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
Josh Coalson | 748459c | 2004-09-08 00:49:30 +0000 | [diff] [blame] | 206 | FLAC__ASSERT((0 != src->entry && src->length > 0) || (0 == src->entry && src->length == 0)); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 207 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 208 | save = dest->entry; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 209 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 210 | if(0 != src->entry && src->length > 0) { |
| 211 | if(copy) { |
| 212 | /* do the copy first so that if we fail we leave the dest object untouched */ |
| 213 | if(!copy_vcentry_(dest, src)) |
| 214 | return false; |
| 215 | } |
| 216 | else { |
| 217 | /* we have to make sure that the string we're taking over is null-terminated */ |
| 218 | |
| 219 | /* |
| 220 | * Stripping the const from src->entry is OK since we're taking |
| 221 | * ownership of the pointer. This is a hack around a deficiency |
| 222 | * in the API where the same function is used for 'copy' and |
| 223 | * 'own', but the source entry is a const pointer. If we were |
| 224 | * precise, the 'own' flavor would be a separate function with a |
| 225 | * non-const source pointer. But it's not, so we hack away. |
| 226 | */ |
| 227 | if(!ensure_null_terminated_((FLAC__byte**)(&src->entry), src->length)) |
| 228 | return false; |
| 229 | *dest = *src; |
| 230 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 231 | } |
| 232 | else { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 233 | /* the src is null */ |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 234 | *dest = *src; |
| 235 | } |
| 236 | |
| 237 | if(0 != save) |
| 238 | free(save); |
| 239 | |
| 240 | vorbiscomment_calculate_length_(object); |
| 241 | return true; |
| 242 | } |
| 243 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 244 | static int vorbiscomment_find_entry_from_(const FLAC__StreamMetadata *object, unsigned offset, const char *field_name, unsigned field_name_length) |
| 245 | { |
| 246 | unsigned i; |
| 247 | |
| 248 | FLAC__ASSERT(0 != object); |
| 249 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 250 | FLAC__ASSERT(0 != field_name); |
| 251 | |
| 252 | for(i = offset; i < object->data.vorbis_comment.num_comments; i++) { |
| 253 | if(FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments[i], field_name, field_name_length)) |
| 254 | return (int)i; |
| 255 | } |
| 256 | |
| 257 | return -1; |
| 258 | } |
| 259 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 260 | static void cuesheet_calculate_length_(FLAC__StreamMetadata *object) |
| 261 | { |
| 262 | unsigned i; |
| 263 | |
| 264 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 265 | |
| 266 | object->length = ( |
| 267 | FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN + |
| 268 | FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN + |
Josh Coalson | 8f0c71b | 2002-12-05 06:37:46 +0000 | [diff] [blame] | 269 | FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 270 | FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN + |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 271 | FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN |
| 272 | ) / 8; |
| 273 | |
| 274 | object->length += object->data.cue_sheet.num_tracks * ( |
| 275 | FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN + |
| 276 | FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN + |
| 277 | FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN + |
| 278 | FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + |
| 279 | FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + |
| 280 | FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN + |
| 281 | FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN |
| 282 | ) / 8; |
| 283 | |
| 284 | for(i = 0; i < object->data.cue_sheet.num_tracks; i++) { |
| 285 | object->length += object->data.cue_sheet.tracks[i].num_indices * ( |
| 286 | FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN + |
| 287 | FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN + |
| 288 | FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN |
| 289 | ) / 8; |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | static FLAC__StreamMetadata_CueSheet_Index *cuesheet_track_index_array_new_(unsigned num_indices) |
| 294 | { |
| 295 | FLAC__ASSERT(num_indices > 0); |
| 296 | |
| 297 | return (FLAC__StreamMetadata_CueSheet_Index*)calloc(num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index)); |
| 298 | } |
| 299 | |
| 300 | static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_new_(unsigned num_tracks) |
| 301 | { |
| 302 | FLAC__ASSERT(num_tracks > 0); |
| 303 | |
| 304 | return (FLAC__StreamMetadata_CueSheet_Track*)calloc(num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track)); |
| 305 | } |
| 306 | |
| 307 | static void cuesheet_track_array_delete_(FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks) |
| 308 | { |
| 309 | unsigned i; |
| 310 | |
| 311 | FLAC__ASSERT(0 != object_array && num_tracks > 0); |
| 312 | |
| 313 | for(i = 0; i < num_tracks; i++) { |
| 314 | if(0 != object_array[i].indices) { |
| 315 | FLAC__ASSERT(object_array[i].num_indices > 0); |
| 316 | free(object_array[i].indices); |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | if(0 != object_array) |
| 321 | free(object_array); |
| 322 | } |
| 323 | |
| 324 | static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_copy_(const FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks) |
| 325 | { |
| 326 | FLAC__StreamMetadata_CueSheet_Track *return_array; |
| 327 | |
| 328 | FLAC__ASSERT(0 != object_array); |
| 329 | FLAC__ASSERT(num_tracks > 0); |
| 330 | |
| 331 | return_array = cuesheet_track_array_new_(num_tracks); |
| 332 | |
| 333 | if(0 != return_array) { |
| 334 | unsigned i; |
| 335 | |
| 336 | for(i = 0; i < num_tracks; i++) { |
| 337 | if(!copy_track_(return_array+i, object_array+i)) { |
| 338 | cuesheet_track_array_delete_(return_array, num_tracks); |
| 339 | return 0; |
| 340 | } |
| 341 | } |
| 342 | } |
| 343 | |
| 344 | return return_array; |
| 345 | } |
| 346 | |
| 347 | static FLAC__bool cuesheet_set_track_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_CueSheet_Track *dest, const FLAC__StreamMetadata_CueSheet_Track *src, FLAC__bool copy) |
| 348 | { |
| 349 | FLAC__StreamMetadata_CueSheet_Index *save; |
| 350 | |
| 351 | FLAC__ASSERT(0 != object); |
| 352 | FLAC__ASSERT(0 != dest); |
| 353 | FLAC__ASSERT(0 != src); |
| 354 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 355 | FLAC__ASSERT((0 != src->indices && src->num_indices > 0) || (0 == src->indices && src->num_indices == 0)); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 356 | |
| 357 | save = dest->indices; |
| 358 | |
| 359 | /* do the copy first so that if we fail we leave the object untouched */ |
| 360 | if(copy) { |
| 361 | if(!copy_track_(dest, src)) |
| 362 | return false; |
| 363 | } |
| 364 | else { |
| 365 | *dest = *src; |
| 366 | } |
| 367 | |
| 368 | if(0 != save) |
| 369 | free(save); |
| 370 | |
| 371 | cuesheet_calculate_length_(object); |
| 372 | return true; |
| 373 | } |
| 374 | |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 375 | |
| 376 | /**************************************************************************** |
| 377 | * |
| 378 | * Metadata object routines |
| 379 | * |
| 380 | ***************************************************************************/ |
| 381 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 382 | FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_new(FLAC__MetadataType type) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 383 | { |
Josh Coalson | 1cb2341 | 2004-07-22 01:32:00 +0000 | [diff] [blame] | 384 | FLAC__StreamMetadata *object; |
| 385 | |
| 386 | if(type > FLAC__MAX_METADATA_TYPE_CODE) |
| 387 | return 0; |
| 388 | |
| 389 | object = (FLAC__StreamMetadata*)calloc(1, sizeof(FLAC__StreamMetadata)); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 390 | if(0 != object) { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 391 | object->is_last = false; |
| 392 | object->type = type; |
| 393 | switch(type) { |
| 394 | case FLAC__METADATA_TYPE_STREAMINFO: |
| 395 | object->length = FLAC__STREAM_METADATA_STREAMINFO_LENGTH; |
| 396 | break; |
| 397 | case FLAC__METADATA_TYPE_PADDING: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 398 | /* calloc() took care of this for us: |
| 399 | object->length = 0; |
| 400 | */ |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 401 | break; |
| 402 | case FLAC__METADATA_TYPE_APPLICATION: |
| 403 | object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8; |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 404 | /* calloc() took care of this for us: |
| 405 | object->data.application.data = 0; |
| 406 | */ |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 407 | break; |
| 408 | case FLAC__METADATA_TYPE_SEEKTABLE: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 409 | /* calloc() took care of this for us: |
| 410 | object->length = 0; |
| 411 | object->data.seek_table.num_points = 0; |
| 412 | object->data.seek_table.points = 0; |
| 413 | */ |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 414 | break; |
| 415 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 416 | { |
| 417 | object->data.vorbis_comment.vendor_string.length = (unsigned)strlen(FLAC__VENDOR_STRING); |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 418 | if(!copy_bytes_(&object->data.vorbis_comment.vendor_string.entry, (const FLAC__byte*)FLAC__VENDOR_STRING, object->data.vorbis_comment.vendor_string.length+1)) { |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 419 | free(object); |
| 420 | return 0; |
| 421 | } |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 422 | vorbiscomment_calculate_length_(object); |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 423 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 424 | break; |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 425 | case FLAC__METADATA_TYPE_CUESHEET: |
| 426 | cuesheet_calculate_length_(object); |
| 427 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 428 | default: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 429 | /* calloc() took care of this for us: |
| 430 | object->length = 0; |
| 431 | object->data.unknown.data = 0; |
| 432 | */ |
| 433 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 434 | } |
| 435 | } |
| 436 | |
| 437 | return object; |
| 438 | } |
| 439 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 440 | FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_clone(const FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 441 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 442 | FLAC__StreamMetadata *to; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 443 | |
| 444 | FLAC__ASSERT(0 != object); |
| 445 | |
| 446 | if(0 != (to = FLAC__metadata_object_new(object->type))) { |
| 447 | to->is_last = object->is_last; |
| 448 | to->type = object->type; |
| 449 | to->length = object->length; |
| 450 | switch(to->type) { |
| 451 | case FLAC__METADATA_TYPE_STREAMINFO: |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 452 | 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] | 453 | break; |
| 454 | case FLAC__METADATA_TYPE_PADDING: |
| 455 | break; |
| 456 | case FLAC__METADATA_TYPE_APPLICATION: |
| 457 | memcpy(&to->data.application.id, &object->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8); |
| 458 | if(!copy_bytes_(&to->data.application.data, object->data.application.data, object->length - FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8)) { |
| 459 | FLAC__metadata_object_delete(to); |
| 460 | return 0; |
| 461 | } |
| 462 | break; |
| 463 | case FLAC__METADATA_TYPE_SEEKTABLE: |
| 464 | to->data.seek_table.num_points = object->data.seek_table.num_points; |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 465 | 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] | 466 | FLAC__metadata_object_delete(to); |
| 467 | return 0; |
| 468 | } |
| 469 | break; |
| 470 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 471 | if(0 != to->data.vorbis_comment.vendor_string.entry) { |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 472 | free(to->data.vorbis_comment.vendor_string.entry); |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 473 | to->data.vorbis_comment.vendor_string.entry = 0; |
| 474 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 475 | if(!copy_vcentry_(&to->data.vorbis_comment.vendor_string, &object->data.vorbis_comment.vendor_string)) { |
| 476 | FLAC__metadata_object_delete(to); |
| 477 | return 0; |
| 478 | } |
| 479 | if(object->data.vorbis_comment.num_comments == 0) { |
| 480 | FLAC__ASSERT(0 == object->data.vorbis_comment.comments); |
| 481 | to->data.vorbis_comment.comments = 0; |
| 482 | } |
| 483 | else { |
| 484 | FLAC__ASSERT(0 != object->data.vorbis_comment.comments); |
| 485 | to->data.vorbis_comment.comments = vorbiscomment_entry_array_copy_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments); |
| 486 | if(0 == to->data.vorbis_comment.comments) { |
| 487 | FLAC__metadata_object_delete(to); |
| 488 | return 0; |
| 489 | } |
| 490 | } |
| 491 | to->data.vorbis_comment.num_comments = object->data.vorbis_comment.num_comments; |
| 492 | break; |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 493 | case FLAC__METADATA_TYPE_CUESHEET: |
| 494 | memcpy(&to->data.cue_sheet, &object->data.cue_sheet, sizeof(FLAC__StreamMetadata_CueSheet)); |
| 495 | if(object->data.cue_sheet.num_tracks == 0) { |
| 496 | FLAC__ASSERT(0 == object->data.cue_sheet.tracks); |
| 497 | } |
| 498 | else { |
| 499 | FLAC__ASSERT(0 != object->data.cue_sheet.tracks); |
| 500 | to->data.cue_sheet.tracks = cuesheet_track_array_copy_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks); |
| 501 | if(0 == to->data.cue_sheet.tracks) { |
| 502 | FLAC__metadata_object_delete(to); |
| 503 | return 0; |
| 504 | } |
| 505 | } |
| 506 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 507 | default: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 508 | if(!copy_bytes_(&to->data.unknown.data, object->data.unknown.data, object->length)) { |
| 509 | FLAC__metadata_object_delete(to); |
| 510 | return 0; |
| 511 | } |
| 512 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 513 | } |
| 514 | } |
| 515 | |
| 516 | return to; |
| 517 | } |
| 518 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 519 | void FLAC__metadata_object_delete_data(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 520 | { |
| 521 | FLAC__ASSERT(0 != object); |
| 522 | |
| 523 | switch(object->type) { |
| 524 | case FLAC__METADATA_TYPE_STREAMINFO: |
| 525 | case FLAC__METADATA_TYPE_PADDING: |
| 526 | break; |
| 527 | case FLAC__METADATA_TYPE_APPLICATION: |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 528 | if(0 != object->data.application.data) { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 529 | free(object->data.application.data); |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 530 | object->data.application.data = 0; |
| 531 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 532 | break; |
| 533 | case FLAC__METADATA_TYPE_SEEKTABLE: |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 534 | if(0 != object->data.seek_table.points) { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 535 | free(object->data.seek_table.points); |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 536 | object->data.seek_table.points = 0; |
| 537 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 538 | break; |
| 539 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 540 | if(0 != object->data.vorbis_comment.vendor_string.entry) { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 541 | free(object->data.vorbis_comment.vendor_string.entry); |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 542 | object->data.vorbis_comment.vendor_string.entry = 0; |
| 543 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 544 | if(0 != object->data.vorbis_comment.comments) { |
| 545 | FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0); |
| 546 | vorbiscomment_entry_array_delete_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments); |
| 547 | } |
| 548 | break; |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 549 | case FLAC__METADATA_TYPE_CUESHEET: |
| 550 | if(0 != object->data.cue_sheet.tracks) { |
| 551 | FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0); |
| 552 | cuesheet_track_array_delete_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks); |
| 553 | } |
| 554 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 555 | default: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 556 | if(0 != object->data.unknown.data) { |
| 557 | free(object->data.unknown.data); |
| 558 | object->data.unknown.data = 0; |
| 559 | } |
| 560 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 561 | } |
| 562 | } |
| 563 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 564 | FLAC_API void FLAC__metadata_object_delete(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 565 | { |
| 566 | FLAC__metadata_object_delete_data(object); |
| 567 | free(object); |
| 568 | } |
| 569 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 570 | 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] | 571 | { |
| 572 | if(block1->min_blocksize != block2->min_blocksize) |
| 573 | return false; |
| 574 | if(block1->max_blocksize != block2->max_blocksize) |
| 575 | return false; |
| 576 | if(block1->min_framesize != block2->min_framesize) |
| 577 | return false; |
| 578 | if(block1->max_framesize != block2->max_framesize) |
| 579 | return false; |
| 580 | if(block1->sample_rate != block2->sample_rate) |
| 581 | return false; |
| 582 | if(block1->channels != block2->channels) |
| 583 | return false; |
| 584 | if(block1->bits_per_sample != block2->bits_per_sample) |
| 585 | return false; |
| 586 | if(block1->total_samples != block2->total_samples) |
| 587 | return false; |
| 588 | if(0 != memcmp(block1->md5sum, block2->md5sum, 16)) |
| 589 | return false; |
| 590 | return true; |
| 591 | } |
| 592 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 593 | 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] | 594 | { |
| 595 | FLAC__ASSERT(0 != block1); |
| 596 | FLAC__ASSERT(0 != block2); |
| 597 | FLAC__ASSERT(block_length >= sizeof(block1->id)); |
| 598 | |
| 599 | if(0 != memcmp(block1->id, block2->id, sizeof(block1->id))) |
| 600 | return false; |
| 601 | if(0 != block1->data && 0 != block2->data) |
| 602 | return 0 == memcmp(block1->data, block2->data, block_length - sizeof(block1->id)); |
| 603 | else |
| 604 | return block1->data == block2->data; |
| 605 | } |
| 606 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 607 | 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] | 608 | { |
| 609 | unsigned i; |
| 610 | |
| 611 | FLAC__ASSERT(0 != block1); |
| 612 | FLAC__ASSERT(0 != block2); |
| 613 | |
| 614 | if(block1->num_points != block2->num_points) |
| 615 | return false; |
| 616 | |
| 617 | if(0 != block1->points && 0 != block2->points) { |
| 618 | for(i = 0; i < block1->num_points; i++) { |
| 619 | if(block1->points[i].sample_number != block2->points[i].sample_number) |
| 620 | return false; |
| 621 | if(block1->points[i].stream_offset != block2->points[i].stream_offset) |
| 622 | return false; |
| 623 | if(block1->points[i].frame_samples != block2->points[i].frame_samples) |
| 624 | return false; |
| 625 | } |
| 626 | return true; |
| 627 | } |
| 628 | else |
| 629 | return block1->points == block2->points; |
| 630 | } |
| 631 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 632 | 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] | 633 | { |
| 634 | unsigned i; |
| 635 | |
| 636 | if(block1->vendor_string.length != block2->vendor_string.length) |
| 637 | return false; |
| 638 | |
| 639 | if(0 != block1->vendor_string.entry && 0 != block2->vendor_string.entry) { |
| 640 | if(0 != memcmp(block1->vendor_string.entry, block2->vendor_string.entry, block1->vendor_string.length)) |
| 641 | return false; |
| 642 | } |
| 643 | else if(block1->vendor_string.entry != block2->vendor_string.entry) |
| 644 | return false; |
| 645 | |
| 646 | if(block1->num_comments != block2->num_comments) |
| 647 | return false; |
| 648 | |
| 649 | for(i = 0; i < block1->num_comments; i++) { |
| 650 | if(0 != block1->comments[i].entry && 0 != block2->comments[i].entry) { |
| 651 | if(0 != memcmp(block1->comments[i].entry, block2->comments[i].entry, block1->comments[i].length)) |
| 652 | return false; |
| 653 | } |
| 654 | else if(block1->comments[i].entry != block2->comments[i].entry) |
| 655 | return false; |
| 656 | } |
| 657 | return true; |
| 658 | } |
| 659 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 660 | static FLAC__bool compare_block_data_cuesheet_(const FLAC__StreamMetadata_CueSheet *block1, const FLAC__StreamMetadata_CueSheet *block2) |
| 661 | { |
| 662 | unsigned i, j; |
| 663 | |
| 664 | if(0 != strcmp(block1->media_catalog_number, block2->media_catalog_number)) |
| 665 | return false; |
| 666 | |
| 667 | if(block1->lead_in != block2->lead_in) |
| 668 | return false; |
| 669 | |
Josh Coalson | 8f0c71b | 2002-12-05 06:37:46 +0000 | [diff] [blame] | 670 | if(block1->is_cd != block2->is_cd) |
| 671 | return false; |
| 672 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 673 | if(block1->num_tracks != block2->num_tracks) |
| 674 | return false; |
| 675 | |
| 676 | if(0 != block1->tracks && 0 != block2->tracks) { |
| 677 | FLAC__ASSERT(block1->num_tracks > 0); |
| 678 | for(i = 0; i < block1->num_tracks; i++) { |
| 679 | if(block1->tracks[i].offset != block2->tracks[i].offset) |
| 680 | return false; |
| 681 | if(block1->tracks[i].number != block2->tracks[i].number) |
| 682 | return false; |
| 683 | if(0 != memcmp(block1->tracks[i].isrc, block2->tracks[i].isrc, sizeof(block1->tracks[i].isrc))) |
| 684 | return false; |
| 685 | if(block1->tracks[i].type != block2->tracks[i].type) |
| 686 | return false; |
| 687 | if(block1->tracks[i].pre_emphasis != block2->tracks[i].pre_emphasis) |
| 688 | return false; |
| 689 | if(block1->tracks[i].num_indices != block2->tracks[i].num_indices) |
| 690 | return false; |
| 691 | if(0 != block1->tracks[i].indices && 0 != block2->tracks[i].indices) { |
| 692 | FLAC__ASSERT(block1->tracks[i].num_indices > 0); |
| 693 | for(j = 0; j < block1->tracks[i].num_indices; j++) { |
| 694 | if(block1->tracks[i].indices[j].offset != block2->tracks[i].indices[j].offset) |
| 695 | return false; |
| 696 | if(block1->tracks[i].indices[j].number != block2->tracks[i].indices[j].number) |
| 697 | return false; |
| 698 | } |
| 699 | } |
| 700 | else if(block1->tracks[i].indices != block2->tracks[i].indices) |
| 701 | return false; |
| 702 | } |
| 703 | } |
| 704 | else if(block1->tracks != block2->tracks) |
| 705 | return false; |
| 706 | return true; |
| 707 | } |
| 708 | |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 709 | static FLAC__bool compare_block_data_unknown_(const FLAC__StreamMetadata_Unknown *block1, const FLAC__StreamMetadata_Unknown *block2, unsigned block_length) |
| 710 | { |
| 711 | FLAC__ASSERT(0 != block1); |
| 712 | FLAC__ASSERT(0 != block2); |
| 713 | |
| 714 | if(0 != block1->data && 0 != block2->data) |
| 715 | return 0 == memcmp(block1->data, block2->data, block_length); |
| 716 | else |
| 717 | return block1->data == block2->data; |
| 718 | } |
| 719 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 720 | 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] | 721 | { |
Josh Coalson | d8ab346 | 2002-07-11 05:54:05 +0000 | [diff] [blame] | 722 | FLAC__ASSERT(0 != block1); |
| 723 | FLAC__ASSERT(0 != block2); |
| 724 | |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 725 | if(block1->type != block2->type) { |
| 726 | return false; |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 727 | } |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 728 | if(block1->is_last != block2->is_last) { |
| 729 | return false; |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 730 | } |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 731 | if(block1->length != block2->length) { |
| 732 | return false; |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 733 | } |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 734 | switch(block1->type) { |
| 735 | case FLAC__METADATA_TYPE_STREAMINFO: |
| 736 | return compare_block_data_streaminfo_(&block1->data.stream_info, &block2->data.stream_info); |
| 737 | case FLAC__METADATA_TYPE_PADDING: |
| 738 | return true; /* we don't compare the padding guts */ |
| 739 | case FLAC__METADATA_TYPE_APPLICATION: |
| 740 | return compare_block_data_application_(&block1->data.application, &block2->data.application, block1->length); |
| 741 | case FLAC__METADATA_TYPE_SEEKTABLE: |
| 742 | return compare_block_data_seektable_(&block1->data.seek_table, &block2->data.seek_table); |
| 743 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
| 744 | 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] | 745 | case FLAC__METADATA_TYPE_CUESHEET: |
| 746 | 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] | 747 | default: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 748 | return compare_block_data_unknown_(&block1->data.unknown, &block2->data.unknown, block1->length); |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 749 | } |
| 750 | } |
| 751 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 752 | 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] | 753 | { |
| 754 | FLAC__byte *save; |
| 755 | |
Josh Coalson | d8ab346 | 2002-07-11 05:54:05 +0000 | [diff] [blame] | 756 | FLAC__ASSERT(0 != object); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 757 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_APPLICATION); |
| 758 | FLAC__ASSERT((0 != data && length > 0) || (0 == data && length == 0 && copy == false)); |
| 759 | |
| 760 | save = object->data.application.data; |
| 761 | |
| 762 | /* do the copy first so that if we fail we leave the object untouched */ |
| 763 | if(copy) { |
| 764 | if(!copy_bytes_(&object->data.application.data, data, length)) |
| 765 | return false; |
| 766 | } |
| 767 | else { |
| 768 | object->data.application.data = data; |
| 769 | } |
| 770 | |
| 771 | if(0 != save) |
| 772 | free(save); |
| 773 | |
| 774 | object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8 + length; |
| 775 | return true; |
| 776 | } |
| 777 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 778 | 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] | 779 | { |
| 780 | FLAC__ASSERT(0 != object); |
| 781 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 782 | |
| 783 | if(0 == object->data.seek_table.points) { |
| 784 | FLAC__ASSERT(object->data.seek_table.num_points == 0); |
| 785 | if(0 == new_num_points) |
| 786 | return true; |
| 787 | else if(0 == (object->data.seek_table.points = seekpoint_array_new_(new_num_points))) |
| 788 | return false; |
| 789 | } |
| 790 | else { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 791 | const unsigned old_size = object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint); |
| 792 | const unsigned new_size = new_num_points * sizeof(FLAC__StreamMetadata_SeekPoint); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 793 | |
| 794 | FLAC__ASSERT(object->data.seek_table.num_points > 0); |
| 795 | |
| 796 | if(new_size == 0) { |
| 797 | free(object->data.seek_table.points); |
| 798 | object->data.seek_table.points = 0; |
| 799 | } |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 800 | 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] | 801 | return false; |
| 802 | |
| 803 | /* if growing, set new elements to placeholders */ |
| 804 | if(new_size > old_size) { |
| 805 | unsigned i; |
| 806 | for(i = object->data.seek_table.num_points; i < new_num_points; i++) { |
| 807 | object->data.seek_table.points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER; |
| 808 | object->data.seek_table.points[i].stream_offset = 0; |
| 809 | object->data.seek_table.points[i].frame_samples = 0; |
| 810 | } |
| 811 | } |
| 812 | } |
| 813 | |
| 814 | object->data.seek_table.num_points = new_num_points; |
| 815 | |
| 816 | seektable_calculate_length_(object); |
| 817 | return true; |
| 818 | } |
| 819 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 820 | 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] | 821 | { |
| 822 | FLAC__ASSERT(0 != object); |
| 823 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 824 | FLAC__ASSERT(point_num < object->data.seek_table.num_points); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 825 | |
| 826 | object->data.seek_table.points[point_num] = point; |
| 827 | } |
| 828 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 829 | 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] | 830 | { |
| 831 | int i; |
| 832 | |
| 833 | FLAC__ASSERT(0 != object); |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 834 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 835 | FLAC__ASSERT(point_num <= object->data.seek_table.num_points); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 836 | |
| 837 | if(!FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points+1)) |
| 838 | return false; |
| 839 | |
| 840 | /* move all points >= point_num forward one space */ |
| 841 | for(i = (int)object->data.seek_table.num_points-1; i > (int)point_num; i--) |
| 842 | object->data.seek_table.points[i] = object->data.seek_table.points[i-1]; |
| 843 | |
| 844 | FLAC__metadata_object_seektable_set_point(object, point_num, point); |
| 845 | seektable_calculate_length_(object); |
| 846 | return true; |
| 847 | } |
| 848 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 849 | 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] | 850 | { |
| 851 | unsigned i; |
| 852 | |
| 853 | FLAC__ASSERT(0 != object); |
| 854 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 855 | FLAC__ASSERT(point_num < object->data.seek_table.num_points); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 856 | |
| 857 | /* move all points > point_num backward one space */ |
| 858 | for(i = point_num; i < object->data.seek_table.num_points-1; i++) |
| 859 | object->data.seek_table.points[i] = object->data.seek_table.points[i+1]; |
| 860 | |
| 861 | return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points-1); |
| 862 | } |
| 863 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 864 | 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] | 865 | { |
Josh Coalson | 28e08d8 | 2002-06-05 05:56:41 +0000 | [diff] [blame] | 866 | FLAC__ASSERT(0 != object); |
| 867 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 868 | |
Josh Coalson | 0833f34 | 2002-07-15 05:31:55 +0000 | [diff] [blame] | 869 | return FLAC__format_seektable_is_legal(&object->data.seek_table); |
Josh Coalson | 28e08d8 | 2002-06-05 05:56:41 +0000 | [diff] [blame] | 870 | } |
| 871 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 872 | 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] | 873 | { |
| 874 | FLAC__ASSERT(0 != object); |
| 875 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 876 | |
| 877 | if(num > 0) |
| 878 | /* WATCHOUT: we rely on the fact that growing the array adds PLACEHOLDERS at the end */ |
| 879 | return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points + num); |
| 880 | else |
| 881 | return true; |
| 882 | } |
| 883 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 884 | 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] | 885 | { |
| 886 | FLAC__StreamMetadata_SeekTable *seek_table; |
| 887 | |
| 888 | FLAC__ASSERT(0 != object); |
| 889 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 890 | |
| 891 | seek_table = &object->data.seek_table; |
| 892 | |
| 893 | if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + 1)) |
| 894 | return false; |
| 895 | |
| 896 | seek_table->points[seek_table->num_points - 1].sample_number = sample_number; |
| 897 | seek_table->points[seek_table->num_points - 1].stream_offset = 0; |
| 898 | seek_table->points[seek_table->num_points - 1].frame_samples = 0; |
| 899 | |
| 900 | return true; |
| 901 | } |
| 902 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 903 | 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] | 904 | { |
| 905 | FLAC__ASSERT(0 != object); |
| 906 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 907 | FLAC__ASSERT(0 != sample_numbers || num == 0); |
| 908 | |
| 909 | if(num > 0) { |
| 910 | FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table; |
| 911 | unsigned i, j; |
| 912 | |
| 913 | i = seek_table->num_points; |
| 914 | |
| 915 | if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num)) |
| 916 | return false; |
| 917 | |
| 918 | for(j = 0; j < num; i++, j++) { |
| 919 | seek_table->points[i].sample_number = sample_numbers[j]; |
| 920 | seek_table->points[i].stream_offset = 0; |
| 921 | seek_table->points[i].frame_samples = 0; |
| 922 | } |
| 923 | } |
| 924 | |
| 925 | return true; |
| 926 | } |
| 927 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 928 | 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] | 929 | { |
| 930 | FLAC__ASSERT(0 != object); |
| 931 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 932 | FLAC__ASSERT(total_samples > 0); |
| 933 | |
| 934 | if(num > 0) { |
| 935 | FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table; |
| 936 | unsigned i, j; |
| 937 | |
| 938 | i = seek_table->num_points; |
| 939 | |
| 940 | if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num)) |
| 941 | return false; |
| 942 | |
| 943 | for(j = 0; j < num; i++, j++) { |
| 944 | seek_table->points[i].sample_number = total_samples * (FLAC__uint64)j / (FLAC__uint64)num; |
| 945 | seek_table->points[i].stream_offset = 0; |
| 946 | seek_table->points[i].frame_samples = 0; |
| 947 | } |
| 948 | } |
| 949 | |
| 950 | return true; |
| 951 | } |
| 952 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 953 | 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] | 954 | { |
| 955 | unsigned unique; |
| 956 | |
| 957 | FLAC__ASSERT(0 != object); |
| 958 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 959 | |
| 960 | unique = FLAC__format_seektable_sort(&object->data.seek_table); |
| 961 | |
| 962 | return !compact || FLAC__metadata_object_seektable_resize_points(object, unique); |
| 963 | } |
| 964 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 965 | 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] | 966 | { |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame^] | 967 | if(!FLAC__format_vorbiscomment_entry_value_is_legal(entry.entry, entry.length)) |
| 968 | return false; |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 969 | 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] | 970 | } |
| 971 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 972 | 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] | 973 | { |
| 974 | FLAC__ASSERT(0 != object); |
| 975 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 976 | |
| 977 | if(0 == object->data.vorbis_comment.comments) { |
| 978 | FLAC__ASSERT(object->data.vorbis_comment.num_comments == 0); |
| 979 | if(0 == new_num_comments) |
| 980 | return true; |
| 981 | else if(0 == (object->data.vorbis_comment.comments = vorbiscomment_entry_array_new_(new_num_comments))) |
| 982 | return false; |
| 983 | } |
| 984 | else { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 985 | const unsigned old_size = object->data.vorbis_comment.num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry); |
| 986 | const unsigned new_size = new_num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 987 | |
| 988 | FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0); |
| 989 | |
| 990 | /* if shrinking, free the truncated entries */ |
| 991 | if(new_num_comments < object->data.vorbis_comment.num_comments) { |
| 992 | unsigned i; |
| 993 | for(i = new_num_comments; i < object->data.vorbis_comment.num_comments; i++) |
| 994 | if(0 != object->data.vorbis_comment.comments[i].entry) |
| 995 | free(object->data.vorbis_comment.comments[i].entry); |
| 996 | } |
| 997 | |
| 998 | if(new_size == 0) { |
| 999 | free(object->data.vorbis_comment.comments); |
| 1000 | object->data.vorbis_comment.comments = 0; |
| 1001 | } |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 1002 | 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] | 1003 | return false; |
| 1004 | |
| 1005 | /* if growing, zero all the length/pointers of new elements */ |
| 1006 | if(new_size > old_size) |
| 1007 | memset(object->data.vorbis_comment.comments + object->data.vorbis_comment.num_comments, 0, new_size - old_size); |
| 1008 | } |
| 1009 | |
| 1010 | object->data.vorbis_comment.num_comments = new_num_comments; |
| 1011 | |
| 1012 | vorbiscomment_calculate_length_(object); |
| 1013 | return true; |
| 1014 | } |
| 1015 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1016 | 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] | 1017 | { |
Josh Coalson | fb99386 | 2003-01-15 03:18:07 +0000 | [diff] [blame] | 1018 | FLAC__ASSERT(0 != object); |
| 1019 | FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments); |
| 1020 | |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame^] | 1021 | if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) |
| 1022 | return false; |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1023 | 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] | 1024 | } |
| 1025 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1026 | 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] | 1027 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 1028 | FLAC__StreamMetadata_VorbisComment *vc; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1029 | |
| 1030 | FLAC__ASSERT(0 != object); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1031 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1032 | FLAC__ASSERT(comment_num <= object->data.vorbis_comment.num_comments); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1033 | |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame^] | 1034 | if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) |
| 1035 | return false; |
| 1036 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1037 | vc = &object->data.vorbis_comment; |
| 1038 | |
| 1039 | if(!FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments+1)) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1040 | return false; |
| 1041 | |
| 1042 | /* move all comments >= comment_num forward one space */ |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 1043 | 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] | 1044 | vc->comments[comment_num].length = 0; |
| 1045 | vc->comments[comment_num].entry = 0; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1046 | |
| 1047 | return FLAC__metadata_object_vorbiscomment_set_comment(object, comment_num, entry, copy); |
| 1048 | } |
| 1049 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1050 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_append_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy) |
| 1051 | { |
| 1052 | FLAC__ASSERT(0 != object); |
| 1053 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 1054 | return FLAC__metadata_object_vorbiscomment_insert_comment(object, object->data.vorbis_comment.num_comments, entry, copy); |
| 1055 | } |
| 1056 | |
| 1057 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_replace_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool all, FLAC__bool copy) |
| 1058 | { |
| 1059 | FLAC__ASSERT(0 != entry.entry && entry.length > 0); |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame^] | 1060 | |
| 1061 | if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) |
| 1062 | return false; |
| 1063 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1064 | { |
| 1065 | int i; |
| 1066 | unsigned field_name_length; |
| 1067 | const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length); |
| 1068 | |
| 1069 | FLAC__ASSERT(0 != eq); |
| 1070 | |
| 1071 | if(0 == eq) |
| 1072 | return false; /* double protection */ |
| 1073 | |
| 1074 | field_name_length = eq-entry.entry; |
| 1075 | |
| 1076 | if((i = vorbiscomment_find_entry_from_(object, 0, entry.entry, field_name_length)) >= 0) { |
| 1077 | unsigned index = (unsigned)i; |
| 1078 | if(!FLAC__metadata_object_vorbiscomment_set_comment(object, index, entry, copy)) |
| 1079 | return false; |
| 1080 | if(all && (index+1 < object->data.vorbis_comment.num_comments)) { |
| 1081 | for(i = vorbiscomment_find_entry_from_(object, index+1, entry.entry, field_name_length); i >= 0; ) { |
| 1082 | if(!FLAC__metadata_object_vorbiscomment_delete_comment(object, (unsigned)i)) |
| 1083 | return false; |
| 1084 | if((unsigned)i < object->data.vorbis_comment.num_comments) |
| 1085 | i = vorbiscomment_find_entry_from_(object, (unsigned)i, entry.entry, field_name_length); |
| 1086 | else |
| 1087 | i = -1; |
| 1088 | } |
| 1089 | } |
| 1090 | return true; |
| 1091 | } |
| 1092 | else |
| 1093 | return FLAC__metadata_object_vorbiscomment_append_comment(object, entry, copy); |
| 1094 | } |
| 1095 | } |
| 1096 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1097 | 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] | 1098 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 1099 | FLAC__StreamMetadata_VorbisComment *vc; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1100 | |
| 1101 | FLAC__ASSERT(0 != object); |
| 1102 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1103 | FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1104 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1105 | vc = &object->data.vorbis_comment; |
| 1106 | |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1107 | /* free the comment at comment_num */ |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1108 | if(0 != vc->comments[comment_num].entry) |
| 1109 | free(vc->comments[comment_num].entry); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1110 | |
| 1111 | /* move all comments > comment_num backward one space */ |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 1112 | 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] | 1113 | vc->comments[vc->num_comments-1].length = 0; |
| 1114 | vc->comments[vc->num_comments-1].entry = 0; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1115 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1116 | return FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments-1); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1117 | } |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1118 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1119 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(FLAC__StreamMetadata_VorbisComment_Entry *entry, const char *field_name, const char *field_value) |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1120 | { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1121 | FLAC__ASSERT(0 != entry); |
| 1122 | FLAC__ASSERT(0 != field_name); |
| 1123 | FLAC__ASSERT(0 != field_value); |
| 1124 | |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame^] | 1125 | if(!FLAC__format_vorbiscomment_entry_name_is_legal(field_name)) |
| 1126 | return false; |
| 1127 | if(!FLAC__format_vorbiscomment_entry_value_is_legal(field_value, (unsigned)(-1))) |
| 1128 | return false; |
| 1129 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1130 | { |
| 1131 | const size_t nn = strlen(field_name); |
| 1132 | const size_t nv = strlen(field_value); |
| 1133 | entry->length = nn + 1 /*=*/ + nv; |
| 1134 | if(0 == (entry->entry = malloc(entry->length+1))) |
| 1135 | return false; |
| 1136 | memcpy(entry->entry, field_name, nn); |
| 1137 | entry->entry[nn] = '='; |
| 1138 | memcpy(entry->entry+nn+1, field_value, nv); |
| 1139 | entry->entry[entry->length] = '\0'; |
| 1140 | } |
| 1141 | |
| 1142 | return true; |
| 1143 | } |
| 1144 | |
| 1145 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_to_name_value_pair(const FLAC__StreamMetadata_VorbisComment_Entry entry, char **field_name, char **field_value) |
| 1146 | { |
| 1147 | FLAC__ASSERT(0 != entry.entry && entry.length > 0); |
| 1148 | FLAC__ASSERT(0 != field_name); |
| 1149 | FLAC__ASSERT(0 != field_value); |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame^] | 1150 | |
| 1151 | if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) |
| 1152 | return false; |
| 1153 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1154 | { |
| 1155 | const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length); |
| 1156 | const size_t nn = eq-entry.entry; |
| 1157 | const size_t nv = entry.length-nn-1; /* -1 for the '=' */ |
| 1158 | FLAC__ASSERT(0 != eq); |
| 1159 | if(0 == eq) |
| 1160 | return false; /* double protection */ |
| 1161 | if(0 == (*field_name = malloc(nn+1))) |
| 1162 | return false; |
| 1163 | if(0 == (*field_value = malloc(nv+1))) { |
| 1164 | free(*field_name); |
| 1165 | return false; |
| 1166 | } |
| 1167 | memcpy(*field_name, entry.entry, nn); |
| 1168 | memcpy(*field_value, entry.entry+nn+1, nv); |
| 1169 | (*field_name)[nn] = '\0'; |
| 1170 | (*field_value)[nv] = '\0'; |
| 1171 | } |
| 1172 | |
| 1173 | return true; |
| 1174 | } |
| 1175 | |
| 1176 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_matches(FLAC__StreamMetadata_VorbisComment_Entry entry, const char *field_name, unsigned field_name_length) |
| 1177 | { |
| 1178 | FLAC__ASSERT(0 != entry.entry && entry.length > 0); |
| 1179 | { |
| 1180 | const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length); |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1181 | #if defined _MSC_VER || defined __MINGW32__ |
| 1182 | #define FLAC__STRNCASECMP strnicmp |
| 1183 | #else |
| 1184 | #define FLAC__STRNCASECMP strncasecmp |
| 1185 | #endif |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1186 | 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] | 1187 | #undef FLAC__STRNCASECMP |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1188 | } |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1189 | } |
| 1190 | |
Josh Coalson | b667e70 | 2002-11-05 07:24:33 +0000 | [diff] [blame] | 1191 | 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] | 1192 | { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1193 | FLAC__ASSERT(0 != field_name); |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1194 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1195 | return vorbiscomment_find_entry_from_(object, offset, field_name, strlen(field_name)); |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1196 | } |
| 1197 | |
| 1198 | FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entry_matching(FLAC__StreamMetadata *object, const char *field_name) |
| 1199 | { |
| 1200 | const unsigned field_name_length = strlen(field_name); |
| 1201 | unsigned i; |
| 1202 | |
| 1203 | FLAC__ASSERT(0 != object); |
| 1204 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 1205 | |
| 1206 | for(i = 0; i < object->data.vorbis_comment.num_comments; i++) { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1207 | if(FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments[i], field_name, field_name_length)) { |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1208 | if(!FLAC__metadata_object_vorbiscomment_delete_comment(object, i)) |
| 1209 | return -1; |
| 1210 | else |
| 1211 | return 1; |
| 1212 | } |
| 1213 | } |
| 1214 | |
| 1215 | return 0; |
| 1216 | } |
| 1217 | |
| 1218 | FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entries_matching(FLAC__StreamMetadata *object, const char *field_name) |
| 1219 | { |
| 1220 | FLAC__bool ok = true; |
| 1221 | unsigned matching = 0; |
| 1222 | const unsigned field_name_length = strlen(field_name); |
| 1223 | int i; |
| 1224 | |
| 1225 | FLAC__ASSERT(0 != object); |
| 1226 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 1227 | |
| 1228 | /* must delete from end to start otherwise it will interfere with our iteration */ |
| 1229 | for(i = (int)object->data.vorbis_comment.num_comments - 1; ok && i >= 0; i--) { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1230 | if(FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments[i], field_name, field_name_length)) { |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1231 | matching++; |
| 1232 | ok &= FLAC__metadata_object_vorbiscomment_delete_comment(object, (unsigned)i); |
| 1233 | } |
| 1234 | } |
| 1235 | |
| 1236 | return ok? (int)matching : -1; |
| 1237 | } |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1238 | |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 1239 | FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_new() |
| 1240 | { |
| 1241 | return (FLAC__StreamMetadata_CueSheet_Track*)calloc(1, sizeof(FLAC__StreamMetadata_CueSheet_Track)); |
| 1242 | } |
| 1243 | |
| 1244 | FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_clone(const FLAC__StreamMetadata_CueSheet_Track *object) |
| 1245 | { |
| 1246 | FLAC__StreamMetadata_CueSheet_Track *to; |
| 1247 | |
| 1248 | FLAC__ASSERT(0 != object); |
| 1249 | |
| 1250 | if(0 != (to = FLAC__metadata_object_cuesheet_track_new())) { |
| 1251 | if(!copy_track_(to, object)) { |
| 1252 | FLAC__metadata_object_cuesheet_track_delete(to); |
| 1253 | return 0; |
| 1254 | } |
| 1255 | } |
| 1256 | |
| 1257 | return to; |
| 1258 | } |
| 1259 | |
| 1260 | void FLAC__metadata_object_cuesheet_track_delete_data(FLAC__StreamMetadata_CueSheet_Track *object) |
| 1261 | { |
| 1262 | FLAC__ASSERT(0 != object); |
| 1263 | |
| 1264 | if(0 != object->indices) { |
| 1265 | FLAC__ASSERT(object->num_indices > 0); |
| 1266 | free(object->indices); |
| 1267 | } |
| 1268 | } |
| 1269 | |
| 1270 | FLAC_API void FLAC__metadata_object_cuesheet_track_delete(FLAC__StreamMetadata_CueSheet_Track *object) |
| 1271 | { |
| 1272 | FLAC__metadata_object_cuesheet_track_delete_data(object); |
| 1273 | free(object); |
| 1274 | } |
| 1275 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1276 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_resize_indices(FLAC__StreamMetadata *object, unsigned track_num, unsigned new_num_indices) |
| 1277 | { |
| 1278 | FLAC__StreamMetadata_CueSheet_Track *track; |
| 1279 | FLAC__ASSERT(0 != object); |
| 1280 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1281 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1282 | |
| 1283 | track = &object->data.cue_sheet.tracks[track_num]; |
| 1284 | |
| 1285 | if(0 == track->indices) { |
| 1286 | FLAC__ASSERT(track->num_indices == 0); |
| 1287 | if(0 == new_num_indices) |
| 1288 | return true; |
| 1289 | else if(0 == (track->indices = cuesheet_track_index_array_new_(new_num_indices))) |
| 1290 | return false; |
| 1291 | } |
| 1292 | else { |
| 1293 | const unsigned old_size = track->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index); |
| 1294 | const unsigned new_size = new_num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index); |
| 1295 | |
| 1296 | FLAC__ASSERT(track->num_indices > 0); |
| 1297 | |
| 1298 | if(new_size == 0) { |
| 1299 | free(track->indices); |
| 1300 | track->indices = 0; |
| 1301 | } |
| 1302 | else if(0 == (track->indices = (FLAC__StreamMetadata_CueSheet_Index*)realloc(track->indices, new_size))) |
| 1303 | return false; |
| 1304 | |
| 1305 | /* if growing, zero all the lengths/pointers of new elements */ |
| 1306 | if(new_size > old_size) |
| 1307 | memset(track->indices + track->num_indices, 0, new_size - old_size); |
| 1308 | } |
| 1309 | |
| 1310 | track->num_indices = new_num_indices; |
| 1311 | |
| 1312 | cuesheet_calculate_length_(object); |
| 1313 | return true; |
| 1314 | } |
| 1315 | |
| 1316 | 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) |
| 1317 | { |
| 1318 | FLAC__StreamMetadata_CueSheet_Track *track; |
| 1319 | |
| 1320 | FLAC__ASSERT(0 != object); |
| 1321 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1322 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1323 | FLAC__ASSERT(index_num <= object->data.cue_sheet.tracks[track_num].num_indices); |
| 1324 | |
| 1325 | track = &object->data.cue_sheet.tracks[track_num]; |
| 1326 | |
| 1327 | if(!FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices+1)) |
| 1328 | return false; |
| 1329 | |
| 1330 | /* move all indices >= index_num forward one space */ |
| 1331 | memmove(&track->indices[index_num+1], &track->indices[index_num], sizeof(FLAC__StreamMetadata_CueSheet_Index)*(track->num_indices-1-index_num)); |
| 1332 | |
| 1333 | track->indices[index_num] = index; |
| 1334 | cuesheet_calculate_length_(object); |
| 1335 | return true; |
| 1336 | } |
| 1337 | |
Josh Coalson | 3b026e8 | 2002-11-21 06:41:01 +0000 | [diff] [blame] | 1338 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_blank_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num) |
| 1339 | { |
| 1340 | FLAC__StreamMetadata_CueSheet_Index index; |
| 1341 | memset(&index, 0, sizeof(index)); |
Josh Coalson | bfc8e31 | 2002-11-21 09:00:25 +0000 | [diff] [blame] | 1342 | return FLAC__metadata_object_cuesheet_track_insert_index(object, track_num, index_num, index); |
Josh Coalson | 3b026e8 | 2002-11-21 06:41:01 +0000 | [diff] [blame] | 1343 | } |
| 1344 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1345 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_delete_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num) |
| 1346 | { |
| 1347 | FLAC__StreamMetadata_CueSheet_Track *track; |
| 1348 | |
| 1349 | FLAC__ASSERT(0 != object); |
| 1350 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1351 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1352 | FLAC__ASSERT(index_num < object->data.cue_sheet.tracks[track_num].num_indices); |
| 1353 | |
| 1354 | track = &object->data.cue_sheet.tracks[track_num]; |
| 1355 | |
| 1356 | /* move all indices > index_num backward one space */ |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 1357 | memmove(&track->indices[index_num], &track->indices[index_num+1], sizeof(FLAC__StreamMetadata_CueSheet_Index)*(track->num_indices-index_num-1)); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1358 | |
| 1359 | FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices-1); |
| 1360 | cuesheet_calculate_length_(object); |
| 1361 | return true; |
| 1362 | } |
| 1363 | |
| 1364 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_resize_tracks(FLAC__StreamMetadata *object, unsigned new_num_tracks) |
| 1365 | { |
| 1366 | FLAC__ASSERT(0 != object); |
| 1367 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1368 | |
| 1369 | if(0 == object->data.cue_sheet.tracks) { |
| 1370 | FLAC__ASSERT(object->data.cue_sheet.num_tracks == 0); |
| 1371 | if(0 == new_num_tracks) |
| 1372 | return true; |
| 1373 | else if(0 == (object->data.cue_sheet.tracks = cuesheet_track_array_new_(new_num_tracks))) |
| 1374 | return false; |
| 1375 | } |
| 1376 | else { |
| 1377 | const unsigned old_size = object->data.cue_sheet.num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track); |
| 1378 | const unsigned new_size = new_num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track); |
| 1379 | |
| 1380 | FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0); |
| 1381 | |
| 1382 | /* if shrinking, free the truncated entries */ |
| 1383 | if(new_num_tracks < object->data.cue_sheet.num_tracks) { |
| 1384 | unsigned i; |
| 1385 | for(i = new_num_tracks; i < object->data.cue_sheet.num_tracks; i++) |
| 1386 | if(0 != object->data.cue_sheet.tracks[i].indices) |
| 1387 | free(object->data.cue_sheet.tracks[i].indices); |
| 1388 | } |
| 1389 | |
| 1390 | if(new_size == 0) { |
| 1391 | free(object->data.cue_sheet.tracks); |
| 1392 | object->data.cue_sheet.tracks = 0; |
| 1393 | } |
| 1394 | else if(0 == (object->data.cue_sheet.tracks = (FLAC__StreamMetadata_CueSheet_Track*)realloc(object->data.cue_sheet.tracks, new_size))) |
| 1395 | return false; |
| 1396 | |
| 1397 | /* if growing, zero all the lengths/pointers of new elements */ |
| 1398 | if(new_size > old_size) |
| 1399 | memset(object->data.cue_sheet.tracks + object->data.cue_sheet.num_tracks, 0, new_size - old_size); |
| 1400 | } |
| 1401 | |
| 1402 | object->data.cue_sheet.num_tracks = new_num_tracks; |
| 1403 | |
| 1404 | cuesheet_calculate_length_(object); |
| 1405 | return true; |
| 1406 | } |
| 1407 | |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 1408 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_set_track(FLAC__StreamMetadata *object, unsigned track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy) |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1409 | { |
Josh Coalson | fb99386 | 2003-01-15 03:18:07 +0000 | [diff] [blame] | 1410 | FLAC__ASSERT(0 != object); |
| 1411 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1412 | |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 1413 | return cuesheet_set_track_(object, object->data.cue_sheet.tracks + track_num, track, copy); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1414 | } |
| 1415 | |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 1416 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_track(FLAC__StreamMetadata *object, unsigned track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy) |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1417 | { |
| 1418 | FLAC__StreamMetadata_CueSheet *cs; |
| 1419 | |
| 1420 | FLAC__ASSERT(0 != object); |
| 1421 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1422 | FLAC__ASSERT(track_num <= object->data.cue_sheet.num_tracks); |
| 1423 | |
| 1424 | cs = &object->data.cue_sheet; |
| 1425 | |
| 1426 | if(!FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks+1)) |
| 1427 | return false; |
| 1428 | |
| 1429 | /* move all tracks >= track_num forward one space */ |
| 1430 | memmove(&cs->tracks[track_num+1], &cs->tracks[track_num], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-1-track_num)); |
| 1431 | cs->tracks[track_num].num_indices = 0; |
| 1432 | cs->tracks[track_num].indices = 0; |
| 1433 | |
| 1434 | return FLAC__metadata_object_cuesheet_set_track(object, track_num, track, copy); |
| 1435 | } |
| 1436 | |
Josh Coalson | 3b026e8 | 2002-11-21 06:41:01 +0000 | [diff] [blame] | 1437 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_blank_track(FLAC__StreamMetadata *object, unsigned track_num) |
| 1438 | { |
| 1439 | FLAC__StreamMetadata_CueSheet_Track track; |
| 1440 | memset(&track, 0, sizeof(track)); |
| 1441 | return FLAC__metadata_object_cuesheet_insert_track(object, track_num, &track, /*copy=*/false); |
| 1442 | } |
| 1443 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1444 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_delete_track(FLAC__StreamMetadata *object, unsigned track_num) |
| 1445 | { |
| 1446 | FLAC__StreamMetadata_CueSheet *cs; |
| 1447 | |
| 1448 | FLAC__ASSERT(0 != object); |
| 1449 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1450 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1451 | |
| 1452 | cs = &object->data.cue_sheet; |
| 1453 | |
| 1454 | /* free the track at track_num */ |
| 1455 | if(0 != cs->tracks[track_num].indices) |
| 1456 | free(cs->tracks[track_num].indices); |
| 1457 | |
| 1458 | /* move all tracks > track_num backward one space */ |
| 1459 | memmove(&cs->tracks[track_num], &cs->tracks[track_num+1], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-track_num-1)); |
| 1460 | cs->tracks[cs->num_tracks-1].num_indices = 0; |
| 1461 | cs->tracks[cs->num_tracks-1].indices = 0; |
| 1462 | |
| 1463 | return FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks-1); |
| 1464 | } |
| 1465 | |
| 1466 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_is_legal(const FLAC__StreamMetadata *object, FLAC__bool check_cd_da_subset, const char **violation) |
| 1467 | { |
| 1468 | FLAC__ASSERT(0 != object); |
| 1469 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1470 | |
| 1471 | return FLAC__format_cuesheet_is_legal(&object->data.cue_sheet, check_cd_da_subset, violation); |
| 1472 | } |