Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1 | /* libFLAC - Free Lossless Audio Codec library |
Josh Coalson | e74bd95 | 2007-02-02 06:58:19 +0000 | [diff] [blame] | 2 | * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 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 | |
Josh Coalson | b1ec796 | 2006-05-24 04:41:36 +0000 | [diff] [blame] | 32 | #if HAVE_CONFIG_H |
| 33 | # include <config.h> |
| 34 | #endif |
| 35 | |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 36 | #include <stdlib.h> |
| 37 | #include <string.h> |
| 38 | |
| 39 | #include "private/metadata.h" |
| 40 | |
| 41 | #include "FLAC/assert.h" |
| 42 | |
| 43 | |
| 44 | /**************************************************************************** |
| 45 | * |
| 46 | * Local routines |
| 47 | * |
| 48 | ***************************************************************************/ |
| 49 | |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 50 | /* copy bytes: |
| 51 | * from = NULL && bytes = 0 |
| 52 | * to <- NULL |
| 53 | * from != NULL && bytes > 0 |
| 54 | * to <- copy of from |
| 55 | * else ASSERT |
| 56 | * malloc error leaved 'to' unchanged |
| 57 | */ |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 58 | static FLAC__bool copy_bytes_(FLAC__byte **to, const FLAC__byte *from, unsigned bytes) |
| 59 | { |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 60 | FLAC__ASSERT(0 != to); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 61 | if(bytes > 0 && 0 != from) { |
| 62 | FLAC__byte *x; |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 63 | if(0 == (x = (FLAC__byte*)malloc(bytes))) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 64 | return false; |
| 65 | memcpy(x, from, bytes); |
| 66 | *to = x; |
| 67 | } |
| 68 | else { |
| 69 | FLAC__ASSERT(0 == from); |
| 70 | FLAC__ASSERT(bytes == 0); |
| 71 | *to = 0; |
| 72 | } |
| 73 | return true; |
| 74 | } |
| 75 | |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 76 | #if 0 /* UNUSED */ |
| 77 | /* like copy_bytes_(), but free()s the original '*to' if the copy succeeds and the original '*to' is non-NULL */ |
| 78 | static FLAC__bool free_copy_bytes_(FLAC__byte **to, const FLAC__byte *from, unsigned bytes) |
| 79 | { |
| 80 | FLAC__byte *copy; |
| 81 | FLAC__ASSERT(0 != to); |
| 82 | if(copy_bytes_(©, from, bytes)) { |
| 83 | if(*to) |
| 84 | free(*to); |
| 85 | *to = copy; |
| 86 | return true; |
| 87 | } |
| 88 | else |
| 89 | return false; |
| 90 | } |
| 91 | #endif |
| 92 | |
| 93 | /* reallocate entry to 1 byte larger and add a terminating NUL */ |
| 94 | /* realloc() failure leaves entry unchanged */ |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 95 | static FLAC__bool ensure_null_terminated_(FLAC__byte **entry, unsigned length) |
| 96 | { |
| 97 | FLAC__byte *x = (FLAC__byte*)realloc(*entry, length+1); |
| 98 | if(0 != x) { |
| 99 | x[length] = '\0'; |
| 100 | *entry = x; |
| 101 | return true; |
| 102 | } |
| 103 | else |
| 104 | return false; |
| 105 | } |
| 106 | |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 107 | /* copies the NUL-terminated C-string 'from' to '*to', leaving '*to' |
| 108 | * unchanged if malloc fails, free()ing the original '*to' if it |
| 109 | * succeeds and the original '*to' was not NULL |
| 110 | */ |
| 111 | static FLAC__bool copy_cstring_(char **to, const char *from) |
| 112 | { |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 113 | char *copy = strdup(from); |
Josh Coalson | a65fd93 | 2006-10-03 01:02:44 +0000 | [diff] [blame] | 114 | FLAC__ASSERT(to); |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 115 | if(copy) { |
| 116 | if(*to) |
| 117 | free(*to); |
| 118 | *to = copy; |
| 119 | return true; |
| 120 | } |
| 121 | else |
| 122 | return false; |
| 123 | } |
| 124 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 125 | 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] | 126 | { |
| 127 | to->length = from->length; |
| 128 | if(0 == from->entry) { |
| 129 | FLAC__ASSERT(from->length == 0); |
| 130 | to->entry = 0; |
| 131 | } |
| 132 | else { |
| 133 | FLAC__byte *x; |
| 134 | FLAC__ASSERT(from->length > 0); |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 135 | if(0 == (x = (FLAC__byte*)malloc(from->length+1))) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 136 | return false; |
| 137 | memcpy(x, from->entry, from->length); |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 138 | x[from->length] = '\0'; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 139 | to->entry = x; |
| 140 | } |
| 141 | return true; |
| 142 | } |
| 143 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 144 | static FLAC__bool copy_track_(FLAC__StreamMetadata_CueSheet_Track *to, const FLAC__StreamMetadata_CueSheet_Track *from) |
| 145 | { |
| 146 | memcpy(to, from, sizeof(FLAC__StreamMetadata_CueSheet_Track)); |
| 147 | if(0 == from->indices) { |
| 148 | FLAC__ASSERT(from->num_indices == 0); |
| 149 | } |
| 150 | else { |
| 151 | FLAC__StreamMetadata_CueSheet_Index *x; |
| 152 | FLAC__ASSERT(from->num_indices > 0); |
| 153 | if(0 == (x = (FLAC__StreamMetadata_CueSheet_Index*)malloc(from->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index)))) |
| 154 | return false; |
| 155 | memcpy(x, from->indices, from->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index)); |
| 156 | to->indices = x; |
| 157 | } |
| 158 | return true; |
| 159 | } |
| 160 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 161 | static void seektable_calculate_length_(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 162 | { |
| 163 | FLAC__ASSERT(0 != object); |
| 164 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 165 | |
| 166 | object->length = object->data.seek_table.num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH; |
| 167 | } |
| 168 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 169 | static FLAC__StreamMetadata_SeekPoint *seekpoint_array_new_(unsigned num_points) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 170 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 171 | FLAC__StreamMetadata_SeekPoint *object_array; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 172 | |
| 173 | FLAC__ASSERT(num_points > 0); |
| 174 | |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 175 | object_array = (FLAC__StreamMetadata_SeekPoint*)malloc(num_points * sizeof(FLAC__StreamMetadata_SeekPoint)); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 176 | |
| 177 | if(0 != object_array) { |
| 178 | unsigned i; |
| 179 | for(i = 0; i < num_points; i++) { |
| 180 | object_array[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER; |
| 181 | object_array[i].stream_offset = 0; |
| 182 | object_array[i].frame_samples = 0; |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | return object_array; |
| 187 | } |
| 188 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 189 | static void vorbiscomment_calculate_length_(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 190 | { |
| 191 | unsigned i; |
| 192 | |
| 193 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 194 | |
| 195 | object->length = (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN) / 8; |
| 196 | object->length += object->data.vorbis_comment.vendor_string.length; |
| 197 | object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN) / 8; |
| 198 | for(i = 0; i < object->data.vorbis_comment.num_comments; i++) { |
| 199 | object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8); |
| 200 | object->length += object->data.vorbis_comment.comments[i].length; |
| 201 | } |
| 202 | } |
| 203 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 204 | static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_new_(unsigned num_comments) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 205 | { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 206 | FLAC__ASSERT(num_comments > 0); |
| 207 | |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 208 | 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] | 209 | } |
| 210 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 211 | 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] | 212 | { |
| 213 | unsigned i; |
| 214 | |
| 215 | FLAC__ASSERT(0 != object_array && num_comments > 0); |
| 216 | |
| 217 | for(i = 0; i < num_comments; i++) |
| 218 | if(0 != object_array[i].entry) |
| 219 | free(object_array[i].entry); |
| 220 | |
| 221 | if(0 != object_array) |
| 222 | free(object_array); |
| 223 | } |
| 224 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 225 | 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] | 226 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 227 | FLAC__StreamMetadata_VorbisComment_Entry *return_array; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 228 | |
| 229 | FLAC__ASSERT(0 != object_array); |
| 230 | FLAC__ASSERT(num_comments > 0); |
| 231 | |
| 232 | return_array = vorbiscomment_entry_array_new_(num_comments); |
| 233 | |
| 234 | if(0 != return_array) { |
| 235 | unsigned i; |
| 236 | |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 237 | for(i = 0; i < num_comments; i++) { |
| 238 | if(!copy_vcentry_(return_array+i, object_array+i)) { |
| 239 | vorbiscomment_entry_array_delete_(return_array, num_comments); |
| 240 | return 0; |
| 241 | } |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | return return_array; |
| 246 | } |
| 247 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 248 | 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] | 249 | { |
| 250 | FLAC__byte *save; |
| 251 | |
| 252 | FLAC__ASSERT(0 != object); |
| 253 | FLAC__ASSERT(0 != dest); |
| 254 | FLAC__ASSERT(0 != src); |
| 255 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
Josh Coalson | 748459c | 2004-09-08 00:49:30 +0000 | [diff] [blame] | 256 | 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] | 257 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 258 | save = dest->entry; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 259 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 260 | if(0 != src->entry && src->length > 0) { |
| 261 | if(copy) { |
| 262 | /* do the copy first so that if we fail we leave the dest object untouched */ |
| 263 | if(!copy_vcentry_(dest, src)) |
| 264 | return false; |
| 265 | } |
| 266 | else { |
| 267 | /* we have to make sure that the string we're taking over is null-terminated */ |
| 268 | |
| 269 | /* |
| 270 | * Stripping the const from src->entry is OK since we're taking |
| 271 | * ownership of the pointer. This is a hack around a deficiency |
| 272 | * in the API where the same function is used for 'copy' and |
| 273 | * 'own', but the source entry is a const pointer. If we were |
| 274 | * precise, the 'own' flavor would be a separate function with a |
| 275 | * non-const source pointer. But it's not, so we hack away. |
| 276 | */ |
| 277 | if(!ensure_null_terminated_((FLAC__byte**)(&src->entry), src->length)) |
| 278 | return false; |
| 279 | *dest = *src; |
| 280 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 281 | } |
| 282 | else { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 283 | /* the src is null */ |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 284 | *dest = *src; |
| 285 | } |
| 286 | |
| 287 | if(0 != save) |
| 288 | free(save); |
| 289 | |
| 290 | vorbiscomment_calculate_length_(object); |
| 291 | return true; |
| 292 | } |
| 293 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 294 | static int vorbiscomment_find_entry_from_(const FLAC__StreamMetadata *object, unsigned offset, const char *field_name, unsigned field_name_length) |
| 295 | { |
| 296 | unsigned i; |
| 297 | |
| 298 | FLAC__ASSERT(0 != object); |
| 299 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 300 | FLAC__ASSERT(0 != field_name); |
| 301 | |
| 302 | for(i = offset; i < object->data.vorbis_comment.num_comments; i++) { |
| 303 | if(FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments[i], field_name, field_name_length)) |
| 304 | return (int)i; |
| 305 | } |
| 306 | |
| 307 | return -1; |
| 308 | } |
| 309 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 310 | static void cuesheet_calculate_length_(FLAC__StreamMetadata *object) |
| 311 | { |
| 312 | unsigned i; |
| 313 | |
| 314 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 315 | |
| 316 | object->length = ( |
| 317 | FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN + |
| 318 | FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN + |
Josh Coalson | 8f0c71b | 2002-12-05 06:37:46 +0000 | [diff] [blame] | 319 | FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 320 | FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN + |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 321 | FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN |
| 322 | ) / 8; |
| 323 | |
| 324 | object->length += object->data.cue_sheet.num_tracks * ( |
| 325 | FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN + |
| 326 | FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN + |
| 327 | FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN + |
| 328 | FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + |
| 329 | FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + |
| 330 | FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN + |
| 331 | FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN |
| 332 | ) / 8; |
| 333 | |
| 334 | for(i = 0; i < object->data.cue_sheet.num_tracks; i++) { |
| 335 | object->length += object->data.cue_sheet.tracks[i].num_indices * ( |
| 336 | FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN + |
| 337 | FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN + |
| 338 | FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN |
| 339 | ) / 8; |
| 340 | } |
| 341 | } |
| 342 | |
| 343 | static FLAC__StreamMetadata_CueSheet_Index *cuesheet_track_index_array_new_(unsigned num_indices) |
| 344 | { |
| 345 | FLAC__ASSERT(num_indices > 0); |
| 346 | |
| 347 | return (FLAC__StreamMetadata_CueSheet_Index*)calloc(num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index)); |
| 348 | } |
| 349 | |
| 350 | static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_new_(unsigned num_tracks) |
| 351 | { |
| 352 | FLAC__ASSERT(num_tracks > 0); |
| 353 | |
| 354 | return (FLAC__StreamMetadata_CueSheet_Track*)calloc(num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track)); |
| 355 | } |
| 356 | |
| 357 | static void cuesheet_track_array_delete_(FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks) |
| 358 | { |
| 359 | unsigned i; |
| 360 | |
| 361 | FLAC__ASSERT(0 != object_array && num_tracks > 0); |
| 362 | |
| 363 | for(i = 0; i < num_tracks; i++) { |
| 364 | if(0 != object_array[i].indices) { |
| 365 | FLAC__ASSERT(object_array[i].num_indices > 0); |
| 366 | free(object_array[i].indices); |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | if(0 != object_array) |
| 371 | free(object_array); |
| 372 | } |
| 373 | |
| 374 | static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_copy_(const FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks) |
| 375 | { |
| 376 | FLAC__StreamMetadata_CueSheet_Track *return_array; |
| 377 | |
| 378 | FLAC__ASSERT(0 != object_array); |
| 379 | FLAC__ASSERT(num_tracks > 0); |
| 380 | |
| 381 | return_array = cuesheet_track_array_new_(num_tracks); |
| 382 | |
| 383 | if(0 != return_array) { |
| 384 | unsigned i; |
| 385 | |
| 386 | for(i = 0; i < num_tracks; i++) { |
| 387 | if(!copy_track_(return_array+i, object_array+i)) { |
| 388 | cuesheet_track_array_delete_(return_array, num_tracks); |
| 389 | return 0; |
| 390 | } |
| 391 | } |
| 392 | } |
| 393 | |
| 394 | return return_array; |
| 395 | } |
| 396 | |
| 397 | static FLAC__bool cuesheet_set_track_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_CueSheet_Track *dest, const FLAC__StreamMetadata_CueSheet_Track *src, FLAC__bool copy) |
| 398 | { |
| 399 | FLAC__StreamMetadata_CueSheet_Index *save; |
| 400 | |
| 401 | FLAC__ASSERT(0 != object); |
| 402 | FLAC__ASSERT(0 != dest); |
| 403 | FLAC__ASSERT(0 != src); |
| 404 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 405 | 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] | 406 | |
| 407 | save = dest->indices; |
| 408 | |
| 409 | /* do the copy first so that if we fail we leave the object untouched */ |
| 410 | if(copy) { |
| 411 | if(!copy_track_(dest, src)) |
| 412 | return false; |
| 413 | } |
| 414 | else { |
| 415 | *dest = *src; |
| 416 | } |
| 417 | |
| 418 | if(0 != save) |
| 419 | free(save); |
| 420 | |
| 421 | cuesheet_calculate_length_(object); |
| 422 | return true; |
| 423 | } |
| 424 | |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 425 | |
| 426 | /**************************************************************************** |
| 427 | * |
| 428 | * Metadata object routines |
| 429 | * |
| 430 | ***************************************************************************/ |
| 431 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 432 | FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_new(FLAC__MetadataType type) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 433 | { |
Josh Coalson | 1cb2341 | 2004-07-22 01:32:00 +0000 | [diff] [blame] | 434 | FLAC__StreamMetadata *object; |
| 435 | |
| 436 | if(type > FLAC__MAX_METADATA_TYPE_CODE) |
| 437 | return 0; |
| 438 | |
| 439 | object = (FLAC__StreamMetadata*)calloc(1, sizeof(FLAC__StreamMetadata)); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 440 | if(0 != object) { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 441 | object->is_last = false; |
| 442 | object->type = type; |
| 443 | switch(type) { |
| 444 | case FLAC__METADATA_TYPE_STREAMINFO: |
| 445 | object->length = FLAC__STREAM_METADATA_STREAMINFO_LENGTH; |
| 446 | break; |
| 447 | case FLAC__METADATA_TYPE_PADDING: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 448 | /* calloc() took care of this for us: |
| 449 | object->length = 0; |
| 450 | */ |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 451 | break; |
| 452 | case FLAC__METADATA_TYPE_APPLICATION: |
| 453 | object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8; |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 454 | /* calloc() took care of this for us: |
| 455 | object->data.application.data = 0; |
| 456 | */ |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 457 | break; |
| 458 | case FLAC__METADATA_TYPE_SEEKTABLE: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 459 | /* calloc() took care of this for us: |
| 460 | object->length = 0; |
| 461 | object->data.seek_table.num_points = 0; |
| 462 | object->data.seek_table.points = 0; |
| 463 | */ |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 464 | break; |
| 465 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 466 | object->data.vorbis_comment.vendor_string.length = (unsigned)strlen(FLAC__VENDOR_STRING); |
| 467 | if(!copy_bytes_(&object->data.vorbis_comment.vendor_string.entry, (const FLAC__byte*)FLAC__VENDOR_STRING, object->data.vorbis_comment.vendor_string.length+1)) { |
| 468 | free(object); |
| 469 | return 0; |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 470 | } |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 471 | vorbiscomment_calculate_length_(object); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 472 | break; |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 473 | case FLAC__METADATA_TYPE_CUESHEET: |
| 474 | cuesheet_calculate_length_(object); |
| 475 | break; |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 476 | case FLAC__METADATA_TYPE_PICTURE: |
| 477 | object->length = ( |
| 478 | FLAC__STREAM_METADATA_PICTURE_TYPE_LEN + |
| 479 | FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN + /* empty mime_type string */ |
| 480 | FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN + /* empty description string */ |
| 481 | FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN + |
| 482 | FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN + |
| 483 | FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN + |
Josh Coalson | 74ed294 | 2006-09-23 23:15:05 +0000 | [diff] [blame] | 484 | FLAC__STREAM_METADATA_PICTURE_COLORS_LEN + |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 485 | FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN + |
| 486 | 0 /* no data */ |
| 487 | ) / 8; |
| 488 | object->data.picture.type = FLAC__STREAM_METADATA_PICTURE_TYPE_OTHER; |
| 489 | object->data.picture.mime_type = 0; |
| 490 | object->data.picture.description = 0; |
| 491 | /* calloc() took care of this for us: |
| 492 | object->data.picture.width = 0; |
| 493 | object->data.picture.height = 0; |
| 494 | object->data.picture.depth = 0; |
Josh Coalson | 74ed294 | 2006-09-23 23:15:05 +0000 | [diff] [blame] | 495 | object->data.picture.colors = 0; |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 496 | object->data.picture.data_length = 0; |
| 497 | object->data.picture.data = 0; |
| 498 | */ |
| 499 | /* now initialize mime_type and description with empty strings to make things easier on the client */ |
| 500 | if(!copy_cstring_(&object->data.picture.mime_type, "")) { |
| 501 | free(object); |
| 502 | return 0; |
| 503 | } |
| 504 | if(!copy_cstring_((char**)(&object->data.picture.description), "")) { |
| 505 | if(object->data.picture.mime_type) |
| 506 | free(object->data.picture.mime_type); |
| 507 | free(object); |
| 508 | return 0; |
| 509 | } |
| 510 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 511 | default: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 512 | /* calloc() took care of this for us: |
| 513 | object->length = 0; |
| 514 | object->data.unknown.data = 0; |
| 515 | */ |
| 516 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 517 | } |
| 518 | } |
| 519 | |
| 520 | return object; |
| 521 | } |
| 522 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 523 | FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_clone(const FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 524 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 525 | FLAC__StreamMetadata *to; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 526 | |
| 527 | FLAC__ASSERT(0 != object); |
| 528 | |
| 529 | if(0 != (to = FLAC__metadata_object_new(object->type))) { |
| 530 | to->is_last = object->is_last; |
| 531 | to->type = object->type; |
| 532 | to->length = object->length; |
| 533 | switch(to->type) { |
| 534 | case FLAC__METADATA_TYPE_STREAMINFO: |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 535 | 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] | 536 | break; |
| 537 | case FLAC__METADATA_TYPE_PADDING: |
| 538 | break; |
| 539 | case FLAC__METADATA_TYPE_APPLICATION: |
| 540 | memcpy(&to->data.application.id, &object->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8); |
| 541 | if(!copy_bytes_(&to->data.application.data, object->data.application.data, object->length - FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8)) { |
| 542 | FLAC__metadata_object_delete(to); |
| 543 | return 0; |
| 544 | } |
| 545 | break; |
| 546 | case FLAC__METADATA_TYPE_SEEKTABLE: |
| 547 | to->data.seek_table.num_points = object->data.seek_table.num_points; |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 548 | 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] | 549 | FLAC__metadata_object_delete(to); |
| 550 | return 0; |
| 551 | } |
| 552 | break; |
| 553 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 554 | if(0 != to->data.vorbis_comment.vendor_string.entry) { |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 555 | free(to->data.vorbis_comment.vendor_string.entry); |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 556 | to->data.vorbis_comment.vendor_string.entry = 0; |
| 557 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 558 | if(!copy_vcentry_(&to->data.vorbis_comment.vendor_string, &object->data.vorbis_comment.vendor_string)) { |
| 559 | FLAC__metadata_object_delete(to); |
| 560 | return 0; |
| 561 | } |
| 562 | if(object->data.vorbis_comment.num_comments == 0) { |
| 563 | FLAC__ASSERT(0 == object->data.vorbis_comment.comments); |
| 564 | to->data.vorbis_comment.comments = 0; |
| 565 | } |
| 566 | else { |
| 567 | FLAC__ASSERT(0 != object->data.vorbis_comment.comments); |
| 568 | to->data.vorbis_comment.comments = vorbiscomment_entry_array_copy_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments); |
| 569 | if(0 == to->data.vorbis_comment.comments) { |
| 570 | FLAC__metadata_object_delete(to); |
| 571 | return 0; |
| 572 | } |
| 573 | } |
| 574 | to->data.vorbis_comment.num_comments = object->data.vorbis_comment.num_comments; |
| 575 | break; |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 576 | case FLAC__METADATA_TYPE_CUESHEET: |
| 577 | memcpy(&to->data.cue_sheet, &object->data.cue_sheet, sizeof(FLAC__StreamMetadata_CueSheet)); |
| 578 | if(object->data.cue_sheet.num_tracks == 0) { |
| 579 | FLAC__ASSERT(0 == object->data.cue_sheet.tracks); |
| 580 | } |
| 581 | else { |
| 582 | FLAC__ASSERT(0 != object->data.cue_sheet.tracks); |
| 583 | to->data.cue_sheet.tracks = cuesheet_track_array_copy_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks); |
| 584 | if(0 == to->data.cue_sheet.tracks) { |
| 585 | FLAC__metadata_object_delete(to); |
| 586 | return 0; |
| 587 | } |
| 588 | } |
| 589 | break; |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 590 | case FLAC__METADATA_TYPE_PICTURE: |
| 591 | to->data.picture.type = object->data.picture.type; |
| 592 | if(!copy_cstring_(&to->data.picture.mime_type, object->data.picture.mime_type)) { |
| 593 | FLAC__metadata_object_delete(to); |
| 594 | return 0; |
| 595 | } |
| 596 | if(!copy_cstring_((char**)(&to->data.picture.description), (const char*)object->data.picture.description)) { |
| 597 | FLAC__metadata_object_delete(to); |
| 598 | return 0; |
| 599 | } |
| 600 | to->data.picture.width = object->data.picture.width; |
| 601 | to->data.picture.height = object->data.picture.height; |
| 602 | to->data.picture.depth = object->data.picture.depth; |
Josh Coalson | 74ed294 | 2006-09-23 23:15:05 +0000 | [diff] [blame] | 603 | to->data.picture.colors = object->data.picture.colors; |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 604 | to->data.picture.data_length = object->data.picture.data_length; |
| 605 | if(!copy_bytes_((&to->data.picture.data), object->data.picture.data, object->data.picture.data_length)) { |
| 606 | FLAC__metadata_object_delete(to); |
| 607 | return 0; |
| 608 | } |
| 609 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 610 | default: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 611 | if(!copy_bytes_(&to->data.unknown.data, object->data.unknown.data, object->length)) { |
| 612 | FLAC__metadata_object_delete(to); |
| 613 | return 0; |
| 614 | } |
| 615 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 616 | } |
| 617 | } |
| 618 | |
| 619 | return to; |
| 620 | } |
| 621 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 622 | void FLAC__metadata_object_delete_data(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 623 | { |
| 624 | FLAC__ASSERT(0 != object); |
| 625 | |
| 626 | switch(object->type) { |
| 627 | case FLAC__METADATA_TYPE_STREAMINFO: |
| 628 | case FLAC__METADATA_TYPE_PADDING: |
| 629 | break; |
| 630 | case FLAC__METADATA_TYPE_APPLICATION: |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 631 | if(0 != object->data.application.data) { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 632 | free(object->data.application.data); |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 633 | object->data.application.data = 0; |
| 634 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 635 | break; |
| 636 | case FLAC__METADATA_TYPE_SEEKTABLE: |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 637 | if(0 != object->data.seek_table.points) { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 638 | free(object->data.seek_table.points); |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 639 | object->data.seek_table.points = 0; |
| 640 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 641 | break; |
| 642 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 643 | if(0 != object->data.vorbis_comment.vendor_string.entry) { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 644 | free(object->data.vorbis_comment.vendor_string.entry); |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 645 | object->data.vorbis_comment.vendor_string.entry = 0; |
| 646 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 647 | if(0 != object->data.vorbis_comment.comments) { |
| 648 | FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0); |
| 649 | vorbiscomment_entry_array_delete_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments); |
| 650 | } |
| 651 | break; |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 652 | case FLAC__METADATA_TYPE_CUESHEET: |
| 653 | if(0 != object->data.cue_sheet.tracks) { |
| 654 | FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0); |
| 655 | cuesheet_track_array_delete_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks); |
| 656 | } |
| 657 | break; |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 658 | case FLAC__METADATA_TYPE_PICTURE: |
| 659 | if(0 != object->data.picture.mime_type) { |
| 660 | free(object->data.picture.mime_type); |
| 661 | object->data.picture.mime_type = 0; |
| 662 | } |
| 663 | if(0 != object->data.picture.description) { |
| 664 | free(object->data.picture.description); |
| 665 | object->data.picture.description = 0; |
| 666 | } |
| 667 | if(0 != object->data.picture.data) { |
| 668 | free(object->data.picture.data); |
| 669 | object->data.picture.data = 0; |
| 670 | } |
| 671 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 672 | default: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 673 | if(0 != object->data.unknown.data) { |
| 674 | free(object->data.unknown.data); |
| 675 | object->data.unknown.data = 0; |
| 676 | } |
| 677 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 678 | } |
| 679 | } |
| 680 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 681 | FLAC_API void FLAC__metadata_object_delete(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 682 | { |
| 683 | FLAC__metadata_object_delete_data(object); |
| 684 | free(object); |
| 685 | } |
| 686 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 687 | 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] | 688 | { |
| 689 | if(block1->min_blocksize != block2->min_blocksize) |
| 690 | return false; |
| 691 | if(block1->max_blocksize != block2->max_blocksize) |
| 692 | return false; |
| 693 | if(block1->min_framesize != block2->min_framesize) |
| 694 | return false; |
| 695 | if(block1->max_framesize != block2->max_framesize) |
| 696 | return false; |
| 697 | if(block1->sample_rate != block2->sample_rate) |
| 698 | return false; |
| 699 | if(block1->channels != block2->channels) |
| 700 | return false; |
| 701 | if(block1->bits_per_sample != block2->bits_per_sample) |
| 702 | return false; |
| 703 | if(block1->total_samples != block2->total_samples) |
| 704 | return false; |
| 705 | if(0 != memcmp(block1->md5sum, block2->md5sum, 16)) |
| 706 | return false; |
| 707 | return true; |
| 708 | } |
| 709 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 710 | 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] | 711 | { |
| 712 | FLAC__ASSERT(0 != block1); |
| 713 | FLAC__ASSERT(0 != block2); |
| 714 | FLAC__ASSERT(block_length >= sizeof(block1->id)); |
| 715 | |
| 716 | if(0 != memcmp(block1->id, block2->id, sizeof(block1->id))) |
| 717 | return false; |
| 718 | if(0 != block1->data && 0 != block2->data) |
| 719 | return 0 == memcmp(block1->data, block2->data, block_length - sizeof(block1->id)); |
| 720 | else |
| 721 | return block1->data == block2->data; |
| 722 | } |
| 723 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 724 | 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] | 725 | { |
| 726 | unsigned i; |
| 727 | |
| 728 | FLAC__ASSERT(0 != block1); |
| 729 | FLAC__ASSERT(0 != block2); |
| 730 | |
| 731 | if(block1->num_points != block2->num_points) |
| 732 | return false; |
| 733 | |
| 734 | if(0 != block1->points && 0 != block2->points) { |
| 735 | for(i = 0; i < block1->num_points; i++) { |
| 736 | if(block1->points[i].sample_number != block2->points[i].sample_number) |
| 737 | return false; |
| 738 | if(block1->points[i].stream_offset != block2->points[i].stream_offset) |
| 739 | return false; |
| 740 | if(block1->points[i].frame_samples != block2->points[i].frame_samples) |
| 741 | return false; |
| 742 | } |
| 743 | return true; |
| 744 | } |
| 745 | else |
| 746 | return block1->points == block2->points; |
| 747 | } |
| 748 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 749 | 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] | 750 | { |
| 751 | unsigned i; |
| 752 | |
| 753 | if(block1->vendor_string.length != block2->vendor_string.length) |
| 754 | return false; |
| 755 | |
| 756 | if(0 != block1->vendor_string.entry && 0 != block2->vendor_string.entry) { |
| 757 | if(0 != memcmp(block1->vendor_string.entry, block2->vendor_string.entry, block1->vendor_string.length)) |
| 758 | return false; |
| 759 | } |
| 760 | else if(block1->vendor_string.entry != block2->vendor_string.entry) |
| 761 | return false; |
| 762 | |
| 763 | if(block1->num_comments != block2->num_comments) |
| 764 | return false; |
| 765 | |
| 766 | for(i = 0; i < block1->num_comments; i++) { |
| 767 | if(0 != block1->comments[i].entry && 0 != block2->comments[i].entry) { |
| 768 | if(0 != memcmp(block1->comments[i].entry, block2->comments[i].entry, block1->comments[i].length)) |
| 769 | return false; |
| 770 | } |
| 771 | else if(block1->comments[i].entry != block2->comments[i].entry) |
| 772 | return false; |
| 773 | } |
| 774 | return true; |
| 775 | } |
| 776 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 777 | static FLAC__bool compare_block_data_cuesheet_(const FLAC__StreamMetadata_CueSheet *block1, const FLAC__StreamMetadata_CueSheet *block2) |
| 778 | { |
| 779 | unsigned i, j; |
| 780 | |
| 781 | if(0 != strcmp(block1->media_catalog_number, block2->media_catalog_number)) |
| 782 | return false; |
| 783 | |
| 784 | if(block1->lead_in != block2->lead_in) |
| 785 | return false; |
| 786 | |
Josh Coalson | 8f0c71b | 2002-12-05 06:37:46 +0000 | [diff] [blame] | 787 | if(block1->is_cd != block2->is_cd) |
| 788 | return false; |
| 789 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 790 | if(block1->num_tracks != block2->num_tracks) |
| 791 | return false; |
| 792 | |
| 793 | if(0 != block1->tracks && 0 != block2->tracks) { |
| 794 | FLAC__ASSERT(block1->num_tracks > 0); |
| 795 | for(i = 0; i < block1->num_tracks; i++) { |
| 796 | if(block1->tracks[i].offset != block2->tracks[i].offset) |
| 797 | return false; |
| 798 | if(block1->tracks[i].number != block2->tracks[i].number) |
| 799 | return false; |
| 800 | if(0 != memcmp(block1->tracks[i].isrc, block2->tracks[i].isrc, sizeof(block1->tracks[i].isrc))) |
| 801 | return false; |
| 802 | if(block1->tracks[i].type != block2->tracks[i].type) |
| 803 | return false; |
| 804 | if(block1->tracks[i].pre_emphasis != block2->tracks[i].pre_emphasis) |
| 805 | return false; |
| 806 | if(block1->tracks[i].num_indices != block2->tracks[i].num_indices) |
| 807 | return false; |
| 808 | if(0 != block1->tracks[i].indices && 0 != block2->tracks[i].indices) { |
| 809 | FLAC__ASSERT(block1->tracks[i].num_indices > 0); |
| 810 | for(j = 0; j < block1->tracks[i].num_indices; j++) { |
| 811 | if(block1->tracks[i].indices[j].offset != block2->tracks[i].indices[j].offset) |
| 812 | return false; |
| 813 | if(block1->tracks[i].indices[j].number != block2->tracks[i].indices[j].number) |
| 814 | return false; |
| 815 | } |
| 816 | } |
| 817 | else if(block1->tracks[i].indices != block2->tracks[i].indices) |
| 818 | return false; |
| 819 | } |
| 820 | } |
| 821 | else if(block1->tracks != block2->tracks) |
| 822 | return false; |
| 823 | return true; |
| 824 | } |
| 825 | |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 826 | static FLAC__bool compare_block_data_picture_(const FLAC__StreamMetadata_Picture *block1, const FLAC__StreamMetadata_Picture *block2) |
| 827 | { |
| 828 | if(block1->type != block2->type) |
| 829 | return false; |
| 830 | if(block1->mime_type != block2->mime_type && (0 == block1->mime_type || 0 == block2->mime_type || strcmp(block1->mime_type, block2->mime_type))) |
| 831 | return false; |
| 832 | if(block1->description != block2->description && (0 == block1->description || 0 == block2->description || strcmp((const char *)block1->description, (const char *)block2->description))) |
| 833 | return false; |
| 834 | if(block1->width != block2->width) |
| 835 | return false; |
| 836 | if(block1->height != block2->height) |
| 837 | return false; |
| 838 | if(block1->depth != block2->depth) |
| 839 | return false; |
Josh Coalson | 74ed294 | 2006-09-23 23:15:05 +0000 | [diff] [blame] | 840 | if(block1->colors != block2->colors) |
| 841 | return false; |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 842 | if(block1->data_length != block2->data_length) |
| 843 | return false; |
| 844 | if(block1->data != block2->data && (0 == block1->data || 0 == block2->data || memcmp(block1->data, block2->data, block1->data_length))) |
| 845 | return false; |
| 846 | return true; |
| 847 | } |
| 848 | |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 849 | static FLAC__bool compare_block_data_unknown_(const FLAC__StreamMetadata_Unknown *block1, const FLAC__StreamMetadata_Unknown *block2, unsigned block_length) |
| 850 | { |
| 851 | FLAC__ASSERT(0 != block1); |
| 852 | FLAC__ASSERT(0 != block2); |
| 853 | |
| 854 | if(0 != block1->data && 0 != block2->data) |
| 855 | return 0 == memcmp(block1->data, block2->data, block_length); |
| 856 | else |
| 857 | return block1->data == block2->data; |
| 858 | } |
| 859 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 860 | 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] | 861 | { |
Josh Coalson | d8ab346 | 2002-07-11 05:54:05 +0000 | [diff] [blame] | 862 | FLAC__ASSERT(0 != block1); |
| 863 | FLAC__ASSERT(0 != block2); |
| 864 | |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 865 | if(block1->type != block2->type) { |
| 866 | return false; |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 867 | } |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 868 | if(block1->is_last != block2->is_last) { |
| 869 | return false; |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 870 | } |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 871 | if(block1->length != block2->length) { |
| 872 | return false; |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 873 | } |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 874 | switch(block1->type) { |
| 875 | case FLAC__METADATA_TYPE_STREAMINFO: |
| 876 | return compare_block_data_streaminfo_(&block1->data.stream_info, &block2->data.stream_info); |
| 877 | case FLAC__METADATA_TYPE_PADDING: |
| 878 | return true; /* we don't compare the padding guts */ |
| 879 | case FLAC__METADATA_TYPE_APPLICATION: |
| 880 | return compare_block_data_application_(&block1->data.application, &block2->data.application, block1->length); |
| 881 | case FLAC__METADATA_TYPE_SEEKTABLE: |
| 882 | return compare_block_data_seektable_(&block1->data.seek_table, &block2->data.seek_table); |
| 883 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
| 884 | 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] | 885 | case FLAC__METADATA_TYPE_CUESHEET: |
| 886 | return compare_block_data_cuesheet_(&block1->data.cue_sheet, &block2->data.cue_sheet); |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 887 | case FLAC__METADATA_TYPE_PICTURE: |
| 888 | return compare_block_data_picture_(&block1->data.picture, &block2->data.picture); |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 889 | default: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 890 | 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] | 891 | } |
| 892 | } |
| 893 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 894 | 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] | 895 | { |
| 896 | FLAC__byte *save; |
| 897 | |
Josh Coalson | d8ab346 | 2002-07-11 05:54:05 +0000 | [diff] [blame] | 898 | FLAC__ASSERT(0 != object); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 899 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_APPLICATION); |
| 900 | FLAC__ASSERT((0 != data && length > 0) || (0 == data && length == 0 && copy == false)); |
| 901 | |
| 902 | save = object->data.application.data; |
| 903 | |
| 904 | /* do the copy first so that if we fail we leave the object untouched */ |
| 905 | if(copy) { |
| 906 | if(!copy_bytes_(&object->data.application.data, data, length)) |
| 907 | return false; |
| 908 | } |
| 909 | else { |
| 910 | object->data.application.data = data; |
| 911 | } |
| 912 | |
| 913 | if(0 != save) |
| 914 | free(save); |
| 915 | |
| 916 | object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8 + length; |
| 917 | return true; |
| 918 | } |
| 919 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 920 | 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] | 921 | { |
| 922 | FLAC__ASSERT(0 != object); |
| 923 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 924 | |
| 925 | if(0 == object->data.seek_table.points) { |
| 926 | FLAC__ASSERT(object->data.seek_table.num_points == 0); |
| 927 | if(0 == new_num_points) |
| 928 | return true; |
| 929 | else if(0 == (object->data.seek_table.points = seekpoint_array_new_(new_num_points))) |
| 930 | return false; |
| 931 | } |
| 932 | else { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 933 | const unsigned old_size = object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint); |
| 934 | const unsigned new_size = new_num_points * sizeof(FLAC__StreamMetadata_SeekPoint); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 935 | |
| 936 | FLAC__ASSERT(object->data.seek_table.num_points > 0); |
| 937 | |
| 938 | if(new_size == 0) { |
| 939 | free(object->data.seek_table.points); |
| 940 | object->data.seek_table.points = 0; |
| 941 | } |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 942 | 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] | 943 | return false; |
| 944 | |
| 945 | /* if growing, set new elements to placeholders */ |
| 946 | if(new_size > old_size) { |
| 947 | unsigned i; |
| 948 | for(i = object->data.seek_table.num_points; i < new_num_points; i++) { |
| 949 | object->data.seek_table.points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER; |
| 950 | object->data.seek_table.points[i].stream_offset = 0; |
| 951 | object->data.seek_table.points[i].frame_samples = 0; |
| 952 | } |
| 953 | } |
| 954 | } |
| 955 | |
| 956 | object->data.seek_table.num_points = new_num_points; |
| 957 | |
| 958 | seektable_calculate_length_(object); |
| 959 | return true; |
| 960 | } |
| 961 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 962 | 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] | 963 | { |
| 964 | FLAC__ASSERT(0 != object); |
| 965 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 966 | FLAC__ASSERT(point_num < object->data.seek_table.num_points); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 967 | |
| 968 | object->data.seek_table.points[point_num] = point; |
| 969 | } |
| 970 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 971 | 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] | 972 | { |
| 973 | int i; |
| 974 | |
| 975 | FLAC__ASSERT(0 != object); |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 976 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 977 | FLAC__ASSERT(point_num <= object->data.seek_table.num_points); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 978 | |
| 979 | if(!FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points+1)) |
| 980 | return false; |
| 981 | |
| 982 | /* move all points >= point_num forward one space */ |
| 983 | for(i = (int)object->data.seek_table.num_points-1; i > (int)point_num; i--) |
| 984 | object->data.seek_table.points[i] = object->data.seek_table.points[i-1]; |
| 985 | |
| 986 | FLAC__metadata_object_seektable_set_point(object, point_num, point); |
| 987 | seektable_calculate_length_(object); |
| 988 | return true; |
| 989 | } |
| 990 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 991 | 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] | 992 | { |
| 993 | unsigned i; |
| 994 | |
| 995 | FLAC__ASSERT(0 != object); |
| 996 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 997 | FLAC__ASSERT(point_num < object->data.seek_table.num_points); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 998 | |
| 999 | /* move all points > point_num backward one space */ |
| 1000 | for(i = point_num; i < object->data.seek_table.num_points-1; i++) |
| 1001 | object->data.seek_table.points[i] = object->data.seek_table.points[i+1]; |
| 1002 | |
| 1003 | return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points-1); |
| 1004 | } |
| 1005 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1006 | 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] | 1007 | { |
Josh Coalson | 28e08d8 | 2002-06-05 05:56:41 +0000 | [diff] [blame] | 1008 | FLAC__ASSERT(0 != object); |
| 1009 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 1010 | |
Josh Coalson | 0833f34 | 2002-07-15 05:31:55 +0000 | [diff] [blame] | 1011 | return FLAC__format_seektable_is_legal(&object->data.seek_table); |
Josh Coalson | 28e08d8 | 2002-06-05 05:56:41 +0000 | [diff] [blame] | 1012 | } |
| 1013 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1014 | 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] | 1015 | { |
| 1016 | FLAC__ASSERT(0 != object); |
| 1017 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 1018 | |
| 1019 | if(num > 0) |
| 1020 | /* WATCHOUT: we rely on the fact that growing the array adds PLACEHOLDERS at the end */ |
| 1021 | return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points + num); |
| 1022 | else |
| 1023 | return true; |
| 1024 | } |
| 1025 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1026 | 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] | 1027 | { |
| 1028 | FLAC__StreamMetadata_SeekTable *seek_table; |
| 1029 | |
| 1030 | FLAC__ASSERT(0 != object); |
| 1031 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 1032 | |
| 1033 | seek_table = &object->data.seek_table; |
| 1034 | |
| 1035 | if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + 1)) |
| 1036 | return false; |
| 1037 | |
| 1038 | seek_table->points[seek_table->num_points - 1].sample_number = sample_number; |
| 1039 | seek_table->points[seek_table->num_points - 1].stream_offset = 0; |
| 1040 | seek_table->points[seek_table->num_points - 1].frame_samples = 0; |
| 1041 | |
| 1042 | return true; |
| 1043 | } |
| 1044 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1045 | 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] | 1046 | { |
| 1047 | FLAC__ASSERT(0 != object); |
| 1048 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 1049 | FLAC__ASSERT(0 != sample_numbers || num == 0); |
| 1050 | |
| 1051 | if(num > 0) { |
| 1052 | FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table; |
| 1053 | unsigned i, j; |
| 1054 | |
| 1055 | i = seek_table->num_points; |
| 1056 | |
| 1057 | if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num)) |
| 1058 | return false; |
| 1059 | |
| 1060 | for(j = 0; j < num; i++, j++) { |
| 1061 | seek_table->points[i].sample_number = sample_numbers[j]; |
| 1062 | seek_table->points[i].stream_offset = 0; |
| 1063 | seek_table->points[i].frame_samples = 0; |
| 1064 | } |
| 1065 | } |
| 1066 | |
| 1067 | return true; |
| 1068 | } |
| 1069 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1070 | 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] | 1071 | { |
| 1072 | FLAC__ASSERT(0 != object); |
| 1073 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 1074 | FLAC__ASSERT(total_samples > 0); |
| 1075 | |
Josh Coalson | 6b21f66 | 2006-09-13 01:42:27 +0000 | [diff] [blame] | 1076 | if(num > 0 && total_samples > 0) { |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 1077 | FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table; |
| 1078 | unsigned i, j; |
| 1079 | |
| 1080 | i = seek_table->num_points; |
| 1081 | |
| 1082 | if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num)) |
| 1083 | return false; |
| 1084 | |
| 1085 | for(j = 0; j < num; i++, j++) { |
| 1086 | seek_table->points[i].sample_number = total_samples * (FLAC__uint64)j / (FLAC__uint64)num; |
| 1087 | seek_table->points[i].stream_offset = 0; |
| 1088 | seek_table->points[i].frame_samples = 0; |
| 1089 | } |
| 1090 | } |
| 1091 | |
| 1092 | return true; |
| 1093 | } |
| 1094 | |
Josh Coalson | 6b21f66 | 2006-09-13 01:42:27 +0000 | [diff] [blame] | 1095 | FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points_by_samples(FLAC__StreamMetadata *object, unsigned samples, FLAC__uint64 total_samples) |
| 1096 | { |
| 1097 | FLAC__ASSERT(0 != object); |
| 1098 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 1099 | FLAC__ASSERT(samples > 0); |
| 1100 | FLAC__ASSERT(total_samples > 0); |
| 1101 | |
| 1102 | if(samples > 0 && total_samples > 0) { |
| 1103 | FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table; |
| 1104 | unsigned i, j; |
| 1105 | FLAC__uint64 num, sample; |
| 1106 | |
| 1107 | num = 1 + total_samples / samples; /* 1+ for the first sample at 0 */ |
| 1108 | /* now account for the fact that we don't place a seekpoint at "total_samples" since samples are number from 0: */ |
| 1109 | if(total_samples % samples == 0) |
| 1110 | num--; |
| 1111 | |
| 1112 | i = seek_table->num_points; |
| 1113 | |
Josh Coalson | a65fd93 | 2006-10-03 01:02:44 +0000 | [diff] [blame] | 1114 | if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + (unsigned)num)) |
Josh Coalson | 6b21f66 | 2006-09-13 01:42:27 +0000 | [diff] [blame] | 1115 | return false; |
| 1116 | |
| 1117 | sample = 0; |
| 1118 | for(j = 0; j < num; i++, j++, sample += samples) { |
| 1119 | seek_table->points[i].sample_number = sample; |
| 1120 | seek_table->points[i].stream_offset = 0; |
| 1121 | seek_table->points[i].frame_samples = 0; |
| 1122 | } |
| 1123 | } |
| 1124 | |
| 1125 | return true; |
| 1126 | } |
| 1127 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1128 | 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] | 1129 | { |
| 1130 | unsigned unique; |
| 1131 | |
| 1132 | FLAC__ASSERT(0 != object); |
| 1133 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 1134 | |
| 1135 | unique = FLAC__format_seektable_sort(&object->data.seek_table); |
| 1136 | |
| 1137 | return !compact || FLAC__metadata_object_seektable_resize_points(object, unique); |
| 1138 | } |
| 1139 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1140 | 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] | 1141 | { |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame] | 1142 | if(!FLAC__format_vorbiscomment_entry_value_is_legal(entry.entry, entry.length)) |
| 1143 | return false; |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1144 | 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] | 1145 | } |
| 1146 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1147 | 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] | 1148 | { |
| 1149 | FLAC__ASSERT(0 != object); |
| 1150 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 1151 | |
| 1152 | if(0 == object->data.vorbis_comment.comments) { |
| 1153 | FLAC__ASSERT(object->data.vorbis_comment.num_comments == 0); |
| 1154 | if(0 == new_num_comments) |
| 1155 | return true; |
| 1156 | else if(0 == (object->data.vorbis_comment.comments = vorbiscomment_entry_array_new_(new_num_comments))) |
| 1157 | return false; |
| 1158 | } |
| 1159 | else { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 1160 | const unsigned old_size = object->data.vorbis_comment.num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry); |
| 1161 | const unsigned new_size = new_num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1162 | |
| 1163 | FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0); |
| 1164 | |
| 1165 | /* if shrinking, free the truncated entries */ |
| 1166 | if(new_num_comments < object->data.vorbis_comment.num_comments) { |
| 1167 | unsigned i; |
| 1168 | for(i = new_num_comments; i < object->data.vorbis_comment.num_comments; i++) |
| 1169 | if(0 != object->data.vorbis_comment.comments[i].entry) |
| 1170 | free(object->data.vorbis_comment.comments[i].entry); |
| 1171 | } |
| 1172 | |
| 1173 | if(new_size == 0) { |
| 1174 | free(object->data.vorbis_comment.comments); |
| 1175 | object->data.vorbis_comment.comments = 0; |
| 1176 | } |
Josh Coalson | 5e3fcb2 | 2002-11-06 07:11:26 +0000 | [diff] [blame] | 1177 | 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] | 1178 | return false; |
| 1179 | |
| 1180 | /* if growing, zero all the length/pointers of new elements */ |
| 1181 | if(new_size > old_size) |
| 1182 | memset(object->data.vorbis_comment.comments + object->data.vorbis_comment.num_comments, 0, new_size - old_size); |
| 1183 | } |
| 1184 | |
| 1185 | object->data.vorbis_comment.num_comments = new_num_comments; |
| 1186 | |
| 1187 | vorbiscomment_calculate_length_(object); |
| 1188 | return true; |
| 1189 | } |
| 1190 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1191 | 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] | 1192 | { |
Josh Coalson | fb99386 | 2003-01-15 03:18:07 +0000 | [diff] [blame] | 1193 | FLAC__ASSERT(0 != object); |
| 1194 | FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments); |
| 1195 | |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame] | 1196 | if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) |
| 1197 | return false; |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1198 | 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] | 1199 | } |
| 1200 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1201 | 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] | 1202 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 1203 | FLAC__StreamMetadata_VorbisComment *vc; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1204 | |
| 1205 | FLAC__ASSERT(0 != object); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1206 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1207 | FLAC__ASSERT(comment_num <= object->data.vorbis_comment.num_comments); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1208 | |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame] | 1209 | if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) |
| 1210 | return false; |
| 1211 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1212 | vc = &object->data.vorbis_comment; |
| 1213 | |
| 1214 | if(!FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments+1)) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1215 | return false; |
| 1216 | |
| 1217 | /* move all comments >= comment_num forward one space */ |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 1218 | 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] | 1219 | vc->comments[comment_num].length = 0; |
| 1220 | vc->comments[comment_num].entry = 0; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1221 | |
| 1222 | return FLAC__metadata_object_vorbiscomment_set_comment(object, comment_num, entry, copy); |
| 1223 | } |
| 1224 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1225 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_append_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy) |
| 1226 | { |
| 1227 | FLAC__ASSERT(0 != object); |
| 1228 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 1229 | return FLAC__metadata_object_vorbiscomment_insert_comment(object, object->data.vorbis_comment.num_comments, entry, copy); |
| 1230 | } |
| 1231 | |
| 1232 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_replace_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool all, FLAC__bool copy) |
| 1233 | { |
| 1234 | FLAC__ASSERT(0 != entry.entry && entry.length > 0); |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame] | 1235 | |
| 1236 | if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) |
| 1237 | return false; |
| 1238 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1239 | { |
| 1240 | int i; |
Josh Coalson | 9bedd78 | 2007-02-22 01:37:33 +0000 | [diff] [blame^] | 1241 | size_t field_name_length; |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1242 | const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length); |
| 1243 | |
| 1244 | FLAC__ASSERT(0 != eq); |
| 1245 | |
| 1246 | if(0 == eq) |
| 1247 | return false; /* double protection */ |
| 1248 | |
| 1249 | field_name_length = eq-entry.entry; |
| 1250 | |
Josh Coalson | b4de169 | 2005-08-24 07:39:25 +0000 | [diff] [blame] | 1251 | if((i = vorbiscomment_find_entry_from_(object, 0, (const char *)entry.entry, field_name_length)) >= 0) { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1252 | unsigned index = (unsigned)i; |
| 1253 | if(!FLAC__metadata_object_vorbiscomment_set_comment(object, index, entry, copy)) |
| 1254 | return false; |
| 1255 | if(all && (index+1 < object->data.vorbis_comment.num_comments)) { |
Josh Coalson | b4de169 | 2005-08-24 07:39:25 +0000 | [diff] [blame] | 1256 | for(i = vorbiscomment_find_entry_from_(object, index+1, (const char *)entry.entry, field_name_length); i >= 0; ) { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1257 | if(!FLAC__metadata_object_vorbiscomment_delete_comment(object, (unsigned)i)) |
| 1258 | return false; |
| 1259 | if((unsigned)i < object->data.vorbis_comment.num_comments) |
Josh Coalson | b4de169 | 2005-08-24 07:39:25 +0000 | [diff] [blame] | 1260 | i = vorbiscomment_find_entry_from_(object, (unsigned)i, (const char *)entry.entry, field_name_length); |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1261 | else |
| 1262 | i = -1; |
| 1263 | } |
| 1264 | } |
| 1265 | return true; |
| 1266 | } |
| 1267 | else |
| 1268 | return FLAC__metadata_object_vorbiscomment_append_comment(object, entry, copy); |
| 1269 | } |
| 1270 | } |
| 1271 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1272 | 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] | 1273 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 1274 | FLAC__StreamMetadata_VorbisComment *vc; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1275 | |
| 1276 | FLAC__ASSERT(0 != object); |
| 1277 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1278 | FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1279 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1280 | vc = &object->data.vorbis_comment; |
| 1281 | |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1282 | /* free the comment at comment_num */ |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1283 | if(0 != vc->comments[comment_num].entry) |
| 1284 | free(vc->comments[comment_num].entry); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1285 | |
| 1286 | /* move all comments > comment_num backward one space */ |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 1287 | 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] | 1288 | vc->comments[vc->num_comments-1].length = 0; |
| 1289 | vc->comments[vc->num_comments-1].entry = 0; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1290 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1291 | return FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments-1); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1292 | } |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1293 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1294 | 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] | 1295 | { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1296 | FLAC__ASSERT(0 != entry); |
| 1297 | FLAC__ASSERT(0 != field_name); |
| 1298 | FLAC__ASSERT(0 != field_value); |
| 1299 | |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame] | 1300 | if(!FLAC__format_vorbiscomment_entry_name_is_legal(field_name)) |
| 1301 | return false; |
Josh Coalson | b4de169 | 2005-08-24 07:39:25 +0000 | [diff] [blame] | 1302 | if(!FLAC__format_vorbiscomment_entry_value_is_legal((const FLAC__byte *)field_value, (unsigned)(-1))) |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame] | 1303 | return false; |
| 1304 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1305 | { |
| 1306 | const size_t nn = strlen(field_name); |
| 1307 | const size_t nv = strlen(field_value); |
| 1308 | entry->length = nn + 1 /*=*/ + nv; |
Josh Coalson | 80171dc | 2004-12-30 03:57:13 +0000 | [diff] [blame] | 1309 | if(0 == (entry->entry = (FLAC__byte*)malloc(entry->length+1))) |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1310 | return false; |
| 1311 | memcpy(entry->entry, field_name, nn); |
| 1312 | entry->entry[nn] = '='; |
| 1313 | memcpy(entry->entry+nn+1, field_value, nv); |
| 1314 | entry->entry[entry->length] = '\0'; |
| 1315 | } |
| 1316 | |
| 1317 | return true; |
| 1318 | } |
| 1319 | |
| 1320 | 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) |
| 1321 | { |
| 1322 | FLAC__ASSERT(0 != entry.entry && entry.length > 0); |
| 1323 | FLAC__ASSERT(0 != field_name); |
| 1324 | FLAC__ASSERT(0 != field_value); |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame] | 1325 | |
| 1326 | if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) |
| 1327 | return false; |
| 1328 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1329 | { |
| 1330 | const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length); |
| 1331 | const size_t nn = eq-entry.entry; |
| 1332 | const size_t nv = entry.length-nn-1; /* -1 for the '=' */ |
| 1333 | FLAC__ASSERT(0 != eq); |
| 1334 | if(0 == eq) |
| 1335 | return false; /* double protection */ |
Josh Coalson | 80171dc | 2004-12-30 03:57:13 +0000 | [diff] [blame] | 1336 | if(0 == (*field_name = (char*)malloc(nn+1))) |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1337 | return false; |
Josh Coalson | 80171dc | 2004-12-30 03:57:13 +0000 | [diff] [blame] | 1338 | if(0 == (*field_value = (char*)malloc(nv+1))) { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1339 | free(*field_name); |
| 1340 | return false; |
| 1341 | } |
| 1342 | memcpy(*field_name, entry.entry, nn); |
| 1343 | memcpy(*field_value, entry.entry+nn+1, nv); |
| 1344 | (*field_name)[nn] = '\0'; |
| 1345 | (*field_value)[nv] = '\0'; |
| 1346 | } |
| 1347 | |
| 1348 | return true; |
| 1349 | } |
| 1350 | |
Josh Coalson | 4462311 | 2005-01-30 18:15:36 +0000 | [diff] [blame] | 1351 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_matches(const FLAC__StreamMetadata_VorbisComment_Entry entry, const char *field_name, unsigned field_name_length) |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1352 | { |
| 1353 | FLAC__ASSERT(0 != entry.entry && entry.length > 0); |
| 1354 | { |
| 1355 | const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length); |
Josh Coalson | 2beca73 | 2006-11-21 01:51:58 +0000 | [diff] [blame] | 1356 | #if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__ || defined __EMX__ |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1357 | #define FLAC__STRNCASECMP strnicmp |
| 1358 | #else |
| 1359 | #define FLAC__STRNCASECMP strncasecmp |
| 1360 | #endif |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1361 | 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] | 1362 | #undef FLAC__STRNCASECMP |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1363 | } |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1364 | } |
| 1365 | |
Josh Coalson | b667e70 | 2002-11-05 07:24:33 +0000 | [diff] [blame] | 1366 | 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] | 1367 | { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1368 | FLAC__ASSERT(0 != field_name); |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1369 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1370 | return vorbiscomment_find_entry_from_(object, offset, field_name, strlen(field_name)); |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1371 | } |
| 1372 | |
| 1373 | FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entry_matching(FLAC__StreamMetadata *object, const char *field_name) |
| 1374 | { |
| 1375 | const unsigned field_name_length = strlen(field_name); |
| 1376 | unsigned i; |
| 1377 | |
| 1378 | FLAC__ASSERT(0 != object); |
| 1379 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 1380 | |
| 1381 | for(i = 0; i < object->data.vorbis_comment.num_comments; i++) { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1382 | 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] | 1383 | if(!FLAC__metadata_object_vorbiscomment_delete_comment(object, i)) |
| 1384 | return -1; |
| 1385 | else |
| 1386 | return 1; |
| 1387 | } |
| 1388 | } |
| 1389 | |
| 1390 | return 0; |
| 1391 | } |
| 1392 | |
| 1393 | FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entries_matching(FLAC__StreamMetadata *object, const char *field_name) |
| 1394 | { |
| 1395 | FLAC__bool ok = true; |
| 1396 | unsigned matching = 0; |
| 1397 | const unsigned field_name_length = strlen(field_name); |
| 1398 | int i; |
| 1399 | |
| 1400 | FLAC__ASSERT(0 != object); |
| 1401 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 1402 | |
| 1403 | /* must delete from end to start otherwise it will interfere with our iteration */ |
| 1404 | 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] | 1405 | 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] | 1406 | matching++; |
| 1407 | ok &= FLAC__metadata_object_vorbiscomment_delete_comment(object, (unsigned)i); |
| 1408 | } |
| 1409 | } |
| 1410 | |
| 1411 | return ok? (int)matching : -1; |
| 1412 | } |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1413 | |
Josh Coalson | e3ec2ad | 2007-01-31 03:53:22 +0000 | [diff] [blame] | 1414 | FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_new(void) |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 1415 | { |
| 1416 | return (FLAC__StreamMetadata_CueSheet_Track*)calloc(1, sizeof(FLAC__StreamMetadata_CueSheet_Track)); |
| 1417 | } |
| 1418 | |
| 1419 | FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_clone(const FLAC__StreamMetadata_CueSheet_Track *object) |
| 1420 | { |
| 1421 | FLAC__StreamMetadata_CueSheet_Track *to; |
| 1422 | |
| 1423 | FLAC__ASSERT(0 != object); |
| 1424 | |
| 1425 | if(0 != (to = FLAC__metadata_object_cuesheet_track_new())) { |
| 1426 | if(!copy_track_(to, object)) { |
| 1427 | FLAC__metadata_object_cuesheet_track_delete(to); |
| 1428 | return 0; |
| 1429 | } |
| 1430 | } |
| 1431 | |
| 1432 | return to; |
| 1433 | } |
| 1434 | |
| 1435 | void FLAC__metadata_object_cuesheet_track_delete_data(FLAC__StreamMetadata_CueSheet_Track *object) |
| 1436 | { |
| 1437 | FLAC__ASSERT(0 != object); |
| 1438 | |
| 1439 | if(0 != object->indices) { |
| 1440 | FLAC__ASSERT(object->num_indices > 0); |
| 1441 | free(object->indices); |
| 1442 | } |
| 1443 | } |
| 1444 | |
| 1445 | FLAC_API void FLAC__metadata_object_cuesheet_track_delete(FLAC__StreamMetadata_CueSheet_Track *object) |
| 1446 | { |
| 1447 | FLAC__metadata_object_cuesheet_track_delete_data(object); |
| 1448 | free(object); |
| 1449 | } |
| 1450 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1451 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_resize_indices(FLAC__StreamMetadata *object, unsigned track_num, unsigned new_num_indices) |
| 1452 | { |
| 1453 | FLAC__StreamMetadata_CueSheet_Track *track; |
| 1454 | FLAC__ASSERT(0 != object); |
| 1455 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1456 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1457 | |
| 1458 | track = &object->data.cue_sheet.tracks[track_num]; |
| 1459 | |
| 1460 | if(0 == track->indices) { |
| 1461 | FLAC__ASSERT(track->num_indices == 0); |
| 1462 | if(0 == new_num_indices) |
| 1463 | return true; |
| 1464 | else if(0 == (track->indices = cuesheet_track_index_array_new_(new_num_indices))) |
| 1465 | return false; |
| 1466 | } |
| 1467 | else { |
| 1468 | const unsigned old_size = track->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index); |
| 1469 | const unsigned new_size = new_num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index); |
| 1470 | |
| 1471 | FLAC__ASSERT(track->num_indices > 0); |
| 1472 | |
| 1473 | if(new_size == 0) { |
| 1474 | free(track->indices); |
| 1475 | track->indices = 0; |
| 1476 | } |
| 1477 | else if(0 == (track->indices = (FLAC__StreamMetadata_CueSheet_Index*)realloc(track->indices, new_size))) |
| 1478 | return false; |
| 1479 | |
| 1480 | /* if growing, zero all the lengths/pointers of new elements */ |
| 1481 | if(new_size > old_size) |
| 1482 | memset(track->indices + track->num_indices, 0, new_size - old_size); |
| 1483 | } |
| 1484 | |
| 1485 | track->num_indices = new_num_indices; |
| 1486 | |
| 1487 | cuesheet_calculate_length_(object); |
| 1488 | return true; |
| 1489 | } |
| 1490 | |
| 1491 | 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) |
| 1492 | { |
| 1493 | FLAC__StreamMetadata_CueSheet_Track *track; |
| 1494 | |
| 1495 | FLAC__ASSERT(0 != object); |
| 1496 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1497 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1498 | FLAC__ASSERT(index_num <= object->data.cue_sheet.tracks[track_num].num_indices); |
| 1499 | |
| 1500 | track = &object->data.cue_sheet.tracks[track_num]; |
| 1501 | |
| 1502 | if(!FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices+1)) |
| 1503 | return false; |
| 1504 | |
| 1505 | /* move all indices >= index_num forward one space */ |
| 1506 | memmove(&track->indices[index_num+1], &track->indices[index_num], sizeof(FLAC__StreamMetadata_CueSheet_Index)*(track->num_indices-1-index_num)); |
| 1507 | |
| 1508 | track->indices[index_num] = index; |
| 1509 | cuesheet_calculate_length_(object); |
| 1510 | return true; |
| 1511 | } |
| 1512 | |
Josh Coalson | 3b026e8 | 2002-11-21 06:41:01 +0000 | [diff] [blame] | 1513 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_blank_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num) |
| 1514 | { |
| 1515 | FLAC__StreamMetadata_CueSheet_Index index; |
| 1516 | memset(&index, 0, sizeof(index)); |
Josh Coalson | bfc8e31 | 2002-11-21 09:00:25 +0000 | [diff] [blame] | 1517 | 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] | 1518 | } |
| 1519 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1520 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_delete_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num) |
| 1521 | { |
| 1522 | FLAC__StreamMetadata_CueSheet_Track *track; |
| 1523 | |
| 1524 | FLAC__ASSERT(0 != object); |
| 1525 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1526 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1527 | FLAC__ASSERT(index_num < object->data.cue_sheet.tracks[track_num].num_indices); |
| 1528 | |
| 1529 | track = &object->data.cue_sheet.tracks[track_num]; |
| 1530 | |
| 1531 | /* move all indices > index_num backward one space */ |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 1532 | 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] | 1533 | |
| 1534 | FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices-1); |
| 1535 | cuesheet_calculate_length_(object); |
| 1536 | return true; |
| 1537 | } |
| 1538 | |
| 1539 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_resize_tracks(FLAC__StreamMetadata *object, unsigned new_num_tracks) |
| 1540 | { |
| 1541 | FLAC__ASSERT(0 != object); |
| 1542 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1543 | |
| 1544 | if(0 == object->data.cue_sheet.tracks) { |
| 1545 | FLAC__ASSERT(object->data.cue_sheet.num_tracks == 0); |
| 1546 | if(0 == new_num_tracks) |
| 1547 | return true; |
| 1548 | else if(0 == (object->data.cue_sheet.tracks = cuesheet_track_array_new_(new_num_tracks))) |
| 1549 | return false; |
| 1550 | } |
| 1551 | else { |
| 1552 | const unsigned old_size = object->data.cue_sheet.num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track); |
| 1553 | const unsigned new_size = new_num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track); |
| 1554 | |
| 1555 | FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0); |
| 1556 | |
| 1557 | /* if shrinking, free the truncated entries */ |
| 1558 | if(new_num_tracks < object->data.cue_sheet.num_tracks) { |
| 1559 | unsigned i; |
| 1560 | for(i = new_num_tracks; i < object->data.cue_sheet.num_tracks; i++) |
| 1561 | if(0 != object->data.cue_sheet.tracks[i].indices) |
| 1562 | free(object->data.cue_sheet.tracks[i].indices); |
| 1563 | } |
| 1564 | |
| 1565 | if(new_size == 0) { |
| 1566 | free(object->data.cue_sheet.tracks); |
| 1567 | object->data.cue_sheet.tracks = 0; |
| 1568 | } |
| 1569 | else if(0 == (object->data.cue_sheet.tracks = (FLAC__StreamMetadata_CueSheet_Track*)realloc(object->data.cue_sheet.tracks, new_size))) |
| 1570 | return false; |
| 1571 | |
| 1572 | /* if growing, zero all the lengths/pointers of new elements */ |
| 1573 | if(new_size > old_size) |
| 1574 | memset(object->data.cue_sheet.tracks + object->data.cue_sheet.num_tracks, 0, new_size - old_size); |
| 1575 | } |
| 1576 | |
| 1577 | object->data.cue_sheet.num_tracks = new_num_tracks; |
| 1578 | |
| 1579 | cuesheet_calculate_length_(object); |
| 1580 | return true; |
| 1581 | } |
| 1582 | |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 1583 | 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] | 1584 | { |
Josh Coalson | fb99386 | 2003-01-15 03:18:07 +0000 | [diff] [blame] | 1585 | FLAC__ASSERT(0 != object); |
| 1586 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1587 | |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 1588 | 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] | 1589 | } |
| 1590 | |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 1591 | 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] | 1592 | { |
| 1593 | FLAC__StreamMetadata_CueSheet *cs; |
| 1594 | |
| 1595 | FLAC__ASSERT(0 != object); |
| 1596 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1597 | FLAC__ASSERT(track_num <= object->data.cue_sheet.num_tracks); |
| 1598 | |
| 1599 | cs = &object->data.cue_sheet; |
| 1600 | |
| 1601 | if(!FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks+1)) |
| 1602 | return false; |
| 1603 | |
| 1604 | /* move all tracks >= track_num forward one space */ |
| 1605 | memmove(&cs->tracks[track_num+1], &cs->tracks[track_num], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-1-track_num)); |
| 1606 | cs->tracks[track_num].num_indices = 0; |
| 1607 | cs->tracks[track_num].indices = 0; |
| 1608 | |
| 1609 | return FLAC__metadata_object_cuesheet_set_track(object, track_num, track, copy); |
| 1610 | } |
| 1611 | |
Josh Coalson | 3b026e8 | 2002-11-21 06:41:01 +0000 | [diff] [blame] | 1612 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_blank_track(FLAC__StreamMetadata *object, unsigned track_num) |
| 1613 | { |
| 1614 | FLAC__StreamMetadata_CueSheet_Track track; |
| 1615 | memset(&track, 0, sizeof(track)); |
| 1616 | return FLAC__metadata_object_cuesheet_insert_track(object, track_num, &track, /*copy=*/false); |
| 1617 | } |
| 1618 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1619 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_delete_track(FLAC__StreamMetadata *object, unsigned track_num) |
| 1620 | { |
| 1621 | FLAC__StreamMetadata_CueSheet *cs; |
| 1622 | |
| 1623 | FLAC__ASSERT(0 != object); |
| 1624 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1625 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1626 | |
| 1627 | cs = &object->data.cue_sheet; |
| 1628 | |
| 1629 | /* free the track at track_num */ |
| 1630 | if(0 != cs->tracks[track_num].indices) |
| 1631 | free(cs->tracks[track_num].indices); |
| 1632 | |
| 1633 | /* move all tracks > track_num backward one space */ |
| 1634 | memmove(&cs->tracks[track_num], &cs->tracks[track_num+1], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-track_num-1)); |
| 1635 | cs->tracks[cs->num_tracks-1].num_indices = 0; |
| 1636 | cs->tracks[cs->num_tracks-1].indices = 0; |
| 1637 | |
| 1638 | return FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks-1); |
| 1639 | } |
| 1640 | |
| 1641 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_is_legal(const FLAC__StreamMetadata *object, FLAC__bool check_cd_da_subset, const char **violation) |
| 1642 | { |
| 1643 | FLAC__ASSERT(0 != object); |
| 1644 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1645 | |
| 1646 | return FLAC__format_cuesheet_is_legal(&object->data.cue_sheet, check_cd_da_subset, violation); |
| 1647 | } |
Josh Coalson | 7cfac0b | 2006-04-10 05:37:34 +0000 | [diff] [blame] | 1648 | |
| 1649 | static FLAC__uint64 get_index_01_offset_(const FLAC__StreamMetadata_CueSheet *cs, unsigned track) |
| 1650 | { |
| 1651 | if (track >= (cs->num_tracks-1) || cs->tracks[track].num_indices < 1) |
| 1652 | return 0; |
| 1653 | else if (cs->tracks[track].indices[0].number == 1) |
| 1654 | return cs->tracks[track].indices[0].offset + cs->tracks[track].offset + cs->lead_in; |
| 1655 | else if (cs->tracks[track].num_indices < 2) |
| 1656 | return 0; |
| 1657 | else if (cs->tracks[track].indices[1].number == 1) |
| 1658 | return cs->tracks[track].indices[1].offset + cs->tracks[track].offset + cs->lead_in; |
| 1659 | else |
| 1660 | return 0; |
| 1661 | } |
| 1662 | |
| 1663 | static FLAC__uint32 cddb_add_digits_(FLAC__uint32 x) |
| 1664 | { |
| 1665 | FLAC__uint32 n = 0; |
| 1666 | while (x) { |
| 1667 | n += (x%10); |
| 1668 | x /= 10; |
| 1669 | } |
| 1670 | return n; |
| 1671 | } |
| 1672 | |
| 1673 | FLAC_API FLAC__uint32 FLAC__metadata_object_cuesheet_calculate_cddb_id(const FLAC__StreamMetadata *object) |
| 1674 | { |
| 1675 | const FLAC__StreamMetadata_CueSheet *cs; |
| 1676 | |
| 1677 | FLAC__ASSERT(0 != object); |
| 1678 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1679 | |
| 1680 | cs = &object->data.cue_sheet; |
| 1681 | |
| 1682 | if (cs->num_tracks < 2) /* need at least one real track and the lead-out track */ |
| 1683 | return 0; |
| 1684 | |
| 1685 | { |
| 1686 | FLAC__uint32 i, length, sum = 0; |
| 1687 | for (i = 0; i < (cs->num_tracks-1); i++) /* -1 to avoid counting the lead-out */ |
| 1688 | sum += cddb_add_digits_((FLAC__uint32)(get_index_01_offset_(cs, i) / 44100)); |
| 1689 | length = (FLAC__uint32)((cs->tracks[cs->num_tracks-1].offset+cs->lead_in) / 44100) - (FLAC__uint32)(get_index_01_offset_(cs, 0) / 44100); |
| 1690 | |
| 1691 | return (sum % 0xFF) << 24 | length << 8 | (FLAC__uint32)(cs->num_tracks-1); |
| 1692 | } |
| 1693 | } |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 1694 | |
| 1695 | FLAC_API FLAC__bool FLAC__metadata_object_picture_set_mime_type(FLAC__StreamMetadata *object, char *mime_type, FLAC__bool copy) |
| 1696 | { |
| 1697 | char *old; |
| 1698 | size_t old_length, new_length; |
| 1699 | |
| 1700 | FLAC__ASSERT(0 != object); |
| 1701 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE); |
| 1702 | FLAC__ASSERT(0 != mime_type); |
| 1703 | |
| 1704 | old = object->data.picture.mime_type; |
| 1705 | old_length = old? strlen(old) : 0; |
| 1706 | new_length = strlen(mime_type); |
| 1707 | |
| 1708 | /* do the copy first so that if we fail we leave the object untouched */ |
| 1709 | if(copy) { |
| 1710 | if(!copy_bytes_((FLAC__byte**)(&object->data.picture.mime_type), (FLAC__byte*)mime_type, new_length+1)) |
| 1711 | return false; |
| 1712 | } |
| 1713 | else { |
| 1714 | object->data.picture.mime_type = mime_type; |
| 1715 | } |
| 1716 | |
| 1717 | if(0 != old) |
| 1718 | free(old); |
| 1719 | |
| 1720 | object->length -= old_length; |
| 1721 | object->length += new_length; |
| 1722 | return true; |
| 1723 | } |
| 1724 | |
| 1725 | FLAC_API FLAC__bool FLAC__metadata_object_picture_set_description(FLAC__StreamMetadata *object, FLAC__byte *description, FLAC__bool copy) |
| 1726 | { |
| 1727 | FLAC__byte *old; |
| 1728 | size_t old_length, new_length; |
| 1729 | |
| 1730 | FLAC__ASSERT(0 != object); |
| 1731 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE); |
| 1732 | FLAC__ASSERT(0 != description); |
| 1733 | |
| 1734 | old = object->data.picture.description; |
| 1735 | old_length = old? strlen((const char *)old) : 0; |
| 1736 | new_length = strlen((const char *)description); |
| 1737 | |
| 1738 | /* do the copy first so that if we fail we leave the object untouched */ |
| 1739 | if(copy) { |
| 1740 | if(!copy_bytes_(&object->data.picture.description, description, new_length+1)) |
| 1741 | return false; |
| 1742 | } |
| 1743 | else { |
| 1744 | object->data.picture.description = description; |
| 1745 | } |
| 1746 | |
| 1747 | if(0 != old) |
| 1748 | free(old); |
| 1749 | |
| 1750 | object->length -= old_length; |
| 1751 | object->length += new_length; |
| 1752 | return true; |
| 1753 | } |
| 1754 | |
| 1755 | FLAC_API FLAC__bool FLAC__metadata_object_picture_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, FLAC__uint32 length, FLAC__bool copy) |
| 1756 | { |
| 1757 | FLAC__byte *old; |
| 1758 | |
| 1759 | FLAC__ASSERT(0 != object); |
| 1760 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE); |
| 1761 | FLAC__ASSERT((0 != data && length > 0) || (0 == data && length == 0 && copy == false)); |
| 1762 | |
| 1763 | old = object->data.picture.data; |
| 1764 | |
| 1765 | /* do the copy first so that if we fail we leave the object untouched */ |
| 1766 | if(copy) { |
| 1767 | if(!copy_bytes_(&object->data.picture.data, data, length)) |
| 1768 | return false; |
| 1769 | } |
| 1770 | else { |
| 1771 | object->data.picture.data = data; |
| 1772 | } |
| 1773 | |
| 1774 | if(0 != old) |
| 1775 | free(old); |
| 1776 | |
| 1777 | object->length -= object->data.picture.data_length; |
| 1778 | object->data.picture.data_length = length; |
| 1779 | object->length += length; |
| 1780 | return true; |
| 1781 | } |
| 1782 | |
| 1783 | FLAC_API FLAC__bool FLAC__metadata_object_picture_is_legal(const FLAC__StreamMetadata *object, const char **violation) |
| 1784 | { |
| 1785 | FLAC__ASSERT(0 != object); |
| 1786 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE); |
| 1787 | |
| 1788 | return FLAC__format_picture_is_legal(&object->data.picture, violation); |
| 1789 | } |