Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1 | /* libFLAC - Free Lossless Audio Codec library |
Josh Coalson | dea0f5a | 2009-01-07 07:31:28 +0000 | [diff] [blame] | 2 | * Copyright (C) 2001,2002,2003,2004,2005,2006,2007,2008,2009 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" |
Josh Coalson | 0f008d2 | 2007-09-11 04:49:56 +0000 | [diff] [blame] | 42 | #include "share/alloc.h" |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 43 | |
| 44 | |
| 45 | /**************************************************************************** |
| 46 | * |
| 47 | * Local routines |
| 48 | * |
| 49 | ***************************************************************************/ |
| 50 | |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 51 | /* copy bytes: |
| 52 | * from = NULL && bytes = 0 |
| 53 | * to <- NULL |
| 54 | * from != NULL && bytes > 0 |
| 55 | * to <- copy of from |
| 56 | * else ASSERT |
Josh Coalson | 0f008d2 | 2007-09-11 04:49:56 +0000 | [diff] [blame] | 57 | * malloc error leaves 'to' unchanged |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 58 | */ |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 59 | static FLAC__bool copy_bytes_(FLAC__byte **to, const FLAC__byte *from, unsigned bytes) |
| 60 | { |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 61 | FLAC__ASSERT(0 != to); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 62 | if(bytes > 0 && 0 != from) { |
| 63 | FLAC__byte *x; |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 64 | if(0 == (x = safe_malloc_(bytes))) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 65 | return false; |
| 66 | memcpy(x, from, bytes); |
| 67 | *to = x; |
| 68 | } |
| 69 | else { |
| 70 | FLAC__ASSERT(0 == from); |
| 71 | FLAC__ASSERT(bytes == 0); |
| 72 | *to = 0; |
| 73 | } |
| 74 | return true; |
| 75 | } |
| 76 | |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 77 | #if 0 /* UNUSED */ |
| 78 | /* like copy_bytes_(), but free()s the original '*to' if the copy succeeds and the original '*to' is non-NULL */ |
| 79 | static FLAC__bool free_copy_bytes_(FLAC__byte **to, const FLAC__byte *from, unsigned bytes) |
| 80 | { |
| 81 | FLAC__byte *copy; |
| 82 | FLAC__ASSERT(0 != to); |
| 83 | if(copy_bytes_(©, from, bytes)) { |
| 84 | if(*to) |
| 85 | free(*to); |
| 86 | *to = copy; |
| 87 | return true; |
| 88 | } |
| 89 | else |
| 90 | return false; |
| 91 | } |
| 92 | #endif |
| 93 | |
| 94 | /* reallocate entry to 1 byte larger and add a terminating NUL */ |
| 95 | /* realloc() failure leaves entry unchanged */ |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 96 | static FLAC__bool ensure_null_terminated_(FLAC__byte **entry, unsigned length) |
| 97 | { |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 98 | FLAC__byte *x = safe_realloc_add_2op_(*entry, length, /*+*/1); |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 99 | if(0 != x) { |
| 100 | x[length] = '\0'; |
| 101 | *entry = x; |
| 102 | return true; |
| 103 | } |
| 104 | else |
| 105 | return false; |
| 106 | } |
| 107 | |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 108 | /* copies the NUL-terminated C-string 'from' to '*to', leaving '*to' |
| 109 | * unchanged if malloc fails, free()ing the original '*to' if it |
| 110 | * succeeds and the original '*to' was not NULL |
| 111 | */ |
| 112 | static FLAC__bool copy_cstring_(char **to, const char *from) |
| 113 | { |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 114 | char *copy = strdup(from); |
Josh Coalson | a65fd93 | 2006-10-03 01:02:44 +0000 | [diff] [blame] | 115 | FLAC__ASSERT(to); |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 116 | if(copy) { |
| 117 | if(*to) |
| 118 | free(*to); |
| 119 | *to = copy; |
| 120 | return true; |
| 121 | } |
| 122 | else |
| 123 | return false; |
| 124 | } |
| 125 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 126 | 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] | 127 | { |
| 128 | to->length = from->length; |
| 129 | if(0 == from->entry) { |
| 130 | FLAC__ASSERT(from->length == 0); |
| 131 | to->entry = 0; |
| 132 | } |
| 133 | else { |
| 134 | FLAC__byte *x; |
| 135 | FLAC__ASSERT(from->length > 0); |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 136 | if(0 == (x = safe_malloc_add_2op_(from->length, /*+*/1))) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 137 | return false; |
| 138 | memcpy(x, from->entry, from->length); |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 139 | x[from->length] = '\0'; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 140 | to->entry = x; |
| 141 | } |
| 142 | return true; |
| 143 | } |
| 144 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 145 | static FLAC__bool copy_track_(FLAC__StreamMetadata_CueSheet_Track *to, const FLAC__StreamMetadata_CueSheet_Track *from) |
| 146 | { |
| 147 | memcpy(to, from, sizeof(FLAC__StreamMetadata_CueSheet_Track)); |
| 148 | if(0 == from->indices) { |
| 149 | FLAC__ASSERT(from->num_indices == 0); |
| 150 | } |
| 151 | else { |
| 152 | FLAC__StreamMetadata_CueSheet_Index *x; |
| 153 | FLAC__ASSERT(from->num_indices > 0); |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 154 | if(0 == (x = safe_malloc_mul_2op_(from->num_indices, /*times*/sizeof(FLAC__StreamMetadata_CueSheet_Index)))) |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 155 | return false; |
| 156 | memcpy(x, from->indices, from->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index)); |
| 157 | to->indices = x; |
| 158 | } |
| 159 | return true; |
| 160 | } |
| 161 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 162 | static void seektable_calculate_length_(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 163 | { |
| 164 | FLAC__ASSERT(0 != object); |
| 165 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 166 | |
| 167 | object->length = object->data.seek_table.num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH; |
| 168 | } |
| 169 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 170 | static FLAC__StreamMetadata_SeekPoint *seekpoint_array_new_(unsigned num_points) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 171 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 172 | FLAC__StreamMetadata_SeekPoint *object_array; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 173 | |
| 174 | FLAC__ASSERT(num_points > 0); |
| 175 | |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 176 | object_array = safe_malloc_mul_2op_(num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint)); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 177 | |
| 178 | if(0 != object_array) { |
| 179 | unsigned i; |
| 180 | for(i = 0; i < num_points; i++) { |
| 181 | object_array[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER; |
| 182 | object_array[i].stream_offset = 0; |
| 183 | object_array[i].frame_samples = 0; |
| 184 | } |
| 185 | } |
| 186 | |
| 187 | return object_array; |
| 188 | } |
| 189 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 190 | static void vorbiscomment_calculate_length_(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 191 | { |
| 192 | unsigned i; |
| 193 | |
| 194 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 195 | |
| 196 | object->length = (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN) / 8; |
| 197 | object->length += object->data.vorbis_comment.vendor_string.length; |
| 198 | object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN) / 8; |
| 199 | for(i = 0; i < object->data.vorbis_comment.num_comments; i++) { |
| 200 | object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8); |
| 201 | object->length += object->data.vorbis_comment.comments[i].length; |
| 202 | } |
| 203 | } |
| 204 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 205 | static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_new_(unsigned num_comments) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 206 | { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 207 | FLAC__ASSERT(num_comments > 0); |
| 208 | |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 209 | return safe_calloc_(num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry)); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 210 | } |
| 211 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 212 | 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] | 213 | { |
| 214 | unsigned i; |
| 215 | |
| 216 | FLAC__ASSERT(0 != object_array && num_comments > 0); |
| 217 | |
| 218 | for(i = 0; i < num_comments; i++) |
| 219 | if(0 != object_array[i].entry) |
| 220 | free(object_array[i].entry); |
| 221 | |
| 222 | if(0 != object_array) |
| 223 | free(object_array); |
| 224 | } |
| 225 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 226 | 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] | 227 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 228 | FLAC__StreamMetadata_VorbisComment_Entry *return_array; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 229 | |
| 230 | FLAC__ASSERT(0 != object_array); |
| 231 | FLAC__ASSERT(num_comments > 0); |
| 232 | |
| 233 | return_array = vorbiscomment_entry_array_new_(num_comments); |
| 234 | |
| 235 | if(0 != return_array) { |
| 236 | unsigned i; |
| 237 | |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 238 | for(i = 0; i < num_comments; i++) { |
| 239 | if(!copy_vcentry_(return_array+i, object_array+i)) { |
| 240 | vorbiscomment_entry_array_delete_(return_array, num_comments); |
| 241 | return 0; |
| 242 | } |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | return return_array; |
| 247 | } |
| 248 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 249 | 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] | 250 | { |
| 251 | FLAC__byte *save; |
| 252 | |
| 253 | FLAC__ASSERT(0 != object); |
| 254 | FLAC__ASSERT(0 != dest); |
| 255 | FLAC__ASSERT(0 != src); |
| 256 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
Josh Coalson | 748459c | 2004-09-08 00:49:30 +0000 | [diff] [blame] | 257 | 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] | 258 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 259 | save = dest->entry; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 260 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 261 | if(0 != src->entry && src->length > 0) { |
| 262 | if(copy) { |
| 263 | /* do the copy first so that if we fail we leave the dest object untouched */ |
| 264 | if(!copy_vcentry_(dest, src)) |
| 265 | return false; |
| 266 | } |
| 267 | else { |
| 268 | /* we have to make sure that the string we're taking over is null-terminated */ |
| 269 | |
| 270 | /* |
| 271 | * Stripping the const from src->entry is OK since we're taking |
| 272 | * ownership of the pointer. This is a hack around a deficiency |
| 273 | * in the API where the same function is used for 'copy' and |
| 274 | * 'own', but the source entry is a const pointer. If we were |
| 275 | * precise, the 'own' flavor would be a separate function with a |
| 276 | * non-const source pointer. But it's not, so we hack away. |
| 277 | */ |
| 278 | if(!ensure_null_terminated_((FLAC__byte**)(&src->entry), src->length)) |
| 279 | return false; |
| 280 | *dest = *src; |
| 281 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 282 | } |
| 283 | else { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 284 | /* the src is null */ |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 285 | *dest = *src; |
| 286 | } |
| 287 | |
| 288 | if(0 != save) |
| 289 | free(save); |
| 290 | |
| 291 | vorbiscomment_calculate_length_(object); |
| 292 | return true; |
| 293 | } |
| 294 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 295 | static int vorbiscomment_find_entry_from_(const FLAC__StreamMetadata *object, unsigned offset, const char *field_name, unsigned field_name_length) |
| 296 | { |
| 297 | unsigned i; |
| 298 | |
| 299 | FLAC__ASSERT(0 != object); |
| 300 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 301 | FLAC__ASSERT(0 != field_name); |
| 302 | |
| 303 | for(i = offset; i < object->data.vorbis_comment.num_comments; i++) { |
| 304 | if(FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments[i], field_name, field_name_length)) |
| 305 | return (int)i; |
| 306 | } |
| 307 | |
| 308 | return -1; |
| 309 | } |
| 310 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 311 | static void cuesheet_calculate_length_(FLAC__StreamMetadata *object) |
| 312 | { |
| 313 | unsigned i; |
| 314 | |
| 315 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 316 | |
| 317 | object->length = ( |
| 318 | FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN + |
| 319 | FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN + |
Josh Coalson | 8f0c71b | 2002-12-05 06:37:46 +0000 | [diff] [blame] | 320 | FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 321 | FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN + |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 322 | FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN |
| 323 | ) / 8; |
| 324 | |
| 325 | object->length += object->data.cue_sheet.num_tracks * ( |
| 326 | FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN + |
| 327 | FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN + |
| 328 | FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN + |
| 329 | FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + |
| 330 | FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + |
| 331 | FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN + |
| 332 | FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN |
| 333 | ) / 8; |
| 334 | |
| 335 | for(i = 0; i < object->data.cue_sheet.num_tracks; i++) { |
| 336 | object->length += object->data.cue_sheet.tracks[i].num_indices * ( |
| 337 | FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN + |
| 338 | FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN + |
| 339 | FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN |
| 340 | ) / 8; |
| 341 | } |
| 342 | } |
| 343 | |
| 344 | static FLAC__StreamMetadata_CueSheet_Index *cuesheet_track_index_array_new_(unsigned num_indices) |
| 345 | { |
| 346 | FLAC__ASSERT(num_indices > 0); |
| 347 | |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 348 | return safe_calloc_(num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index)); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 349 | } |
| 350 | |
| 351 | static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_new_(unsigned num_tracks) |
| 352 | { |
| 353 | FLAC__ASSERT(num_tracks > 0); |
| 354 | |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 355 | return safe_calloc_(num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track)); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 356 | } |
| 357 | |
| 358 | static void cuesheet_track_array_delete_(FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks) |
| 359 | { |
| 360 | unsigned i; |
| 361 | |
| 362 | FLAC__ASSERT(0 != object_array && num_tracks > 0); |
| 363 | |
| 364 | for(i = 0; i < num_tracks; i++) { |
| 365 | if(0 != object_array[i].indices) { |
| 366 | FLAC__ASSERT(object_array[i].num_indices > 0); |
| 367 | free(object_array[i].indices); |
| 368 | } |
| 369 | } |
| 370 | |
| 371 | if(0 != object_array) |
| 372 | free(object_array); |
| 373 | } |
| 374 | |
| 375 | static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_copy_(const FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks) |
| 376 | { |
| 377 | FLAC__StreamMetadata_CueSheet_Track *return_array; |
| 378 | |
| 379 | FLAC__ASSERT(0 != object_array); |
| 380 | FLAC__ASSERT(num_tracks > 0); |
| 381 | |
| 382 | return_array = cuesheet_track_array_new_(num_tracks); |
| 383 | |
| 384 | if(0 != return_array) { |
| 385 | unsigned i; |
| 386 | |
| 387 | for(i = 0; i < num_tracks; i++) { |
| 388 | if(!copy_track_(return_array+i, object_array+i)) { |
| 389 | cuesheet_track_array_delete_(return_array, num_tracks); |
| 390 | return 0; |
| 391 | } |
| 392 | } |
| 393 | } |
| 394 | |
| 395 | return return_array; |
| 396 | } |
| 397 | |
| 398 | static FLAC__bool cuesheet_set_track_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_CueSheet_Track *dest, const FLAC__StreamMetadata_CueSheet_Track *src, FLAC__bool copy) |
| 399 | { |
| 400 | FLAC__StreamMetadata_CueSheet_Index *save; |
| 401 | |
| 402 | FLAC__ASSERT(0 != object); |
| 403 | FLAC__ASSERT(0 != dest); |
| 404 | FLAC__ASSERT(0 != src); |
| 405 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 406 | 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] | 407 | |
| 408 | save = dest->indices; |
| 409 | |
| 410 | /* do the copy first so that if we fail we leave the object untouched */ |
| 411 | if(copy) { |
| 412 | if(!copy_track_(dest, src)) |
| 413 | return false; |
| 414 | } |
| 415 | else { |
| 416 | *dest = *src; |
| 417 | } |
| 418 | |
| 419 | if(0 != save) |
| 420 | free(save); |
| 421 | |
| 422 | cuesheet_calculate_length_(object); |
| 423 | return true; |
| 424 | } |
| 425 | |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 426 | |
| 427 | /**************************************************************************** |
| 428 | * |
| 429 | * Metadata object routines |
| 430 | * |
| 431 | ***************************************************************************/ |
| 432 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 433 | FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_new(FLAC__MetadataType type) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 434 | { |
Josh Coalson | 1cb2341 | 2004-07-22 01:32:00 +0000 | [diff] [blame] | 435 | FLAC__StreamMetadata *object; |
| 436 | |
| 437 | if(type > FLAC__MAX_METADATA_TYPE_CODE) |
| 438 | return 0; |
| 439 | |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 440 | object = calloc(1, sizeof(FLAC__StreamMetadata)); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 441 | if(0 != object) { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 442 | object->is_last = false; |
| 443 | object->type = type; |
| 444 | switch(type) { |
| 445 | case FLAC__METADATA_TYPE_STREAMINFO: |
| 446 | object->length = FLAC__STREAM_METADATA_STREAMINFO_LENGTH; |
| 447 | break; |
| 448 | case FLAC__METADATA_TYPE_PADDING: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 449 | /* calloc() took care of this for us: |
| 450 | object->length = 0; |
| 451 | */ |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 452 | break; |
| 453 | case FLAC__METADATA_TYPE_APPLICATION: |
| 454 | object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8; |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 455 | /* calloc() took care of this for us: |
| 456 | object->data.application.data = 0; |
| 457 | */ |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 458 | break; |
| 459 | case FLAC__METADATA_TYPE_SEEKTABLE: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 460 | /* calloc() took care of this for us: |
| 461 | object->length = 0; |
| 462 | object->data.seek_table.num_points = 0; |
| 463 | object->data.seek_table.points = 0; |
| 464 | */ |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 465 | break; |
| 466 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 467 | object->data.vorbis_comment.vendor_string.length = (unsigned)strlen(FLAC__VENDOR_STRING); |
| 468 | if(!copy_bytes_(&object->data.vorbis_comment.vendor_string.entry, (const FLAC__byte*)FLAC__VENDOR_STRING, object->data.vorbis_comment.vendor_string.length+1)) { |
| 469 | free(object); |
| 470 | return 0; |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 471 | } |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 472 | vorbiscomment_calculate_length_(object); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 473 | break; |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 474 | case FLAC__METADATA_TYPE_CUESHEET: |
| 475 | cuesheet_calculate_length_(object); |
| 476 | break; |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 477 | case FLAC__METADATA_TYPE_PICTURE: |
| 478 | object->length = ( |
| 479 | FLAC__STREAM_METADATA_PICTURE_TYPE_LEN + |
| 480 | FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN + /* empty mime_type string */ |
| 481 | FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN + /* empty description string */ |
| 482 | FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN + |
| 483 | FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN + |
| 484 | FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN + |
Josh Coalson | 74ed294 | 2006-09-23 23:15:05 +0000 | [diff] [blame] | 485 | FLAC__STREAM_METADATA_PICTURE_COLORS_LEN + |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 486 | FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN + |
| 487 | 0 /* no data */ |
| 488 | ) / 8; |
| 489 | object->data.picture.type = FLAC__STREAM_METADATA_PICTURE_TYPE_OTHER; |
| 490 | object->data.picture.mime_type = 0; |
| 491 | object->data.picture.description = 0; |
| 492 | /* calloc() took care of this for us: |
| 493 | object->data.picture.width = 0; |
| 494 | object->data.picture.height = 0; |
| 495 | object->data.picture.depth = 0; |
Josh Coalson | 74ed294 | 2006-09-23 23:15:05 +0000 | [diff] [blame] | 496 | object->data.picture.colors = 0; |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 497 | object->data.picture.data_length = 0; |
| 498 | object->data.picture.data = 0; |
| 499 | */ |
| 500 | /* now initialize mime_type and description with empty strings to make things easier on the client */ |
| 501 | if(!copy_cstring_(&object->data.picture.mime_type, "")) { |
| 502 | free(object); |
| 503 | return 0; |
| 504 | } |
| 505 | if(!copy_cstring_((char**)(&object->data.picture.description), "")) { |
| 506 | if(object->data.picture.mime_type) |
| 507 | free(object->data.picture.mime_type); |
| 508 | free(object); |
| 509 | return 0; |
| 510 | } |
| 511 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 512 | default: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 513 | /* calloc() took care of this for us: |
| 514 | object->length = 0; |
| 515 | object->data.unknown.data = 0; |
| 516 | */ |
| 517 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 518 | } |
| 519 | } |
| 520 | |
| 521 | return object; |
| 522 | } |
| 523 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 524 | FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_clone(const FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 525 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 526 | FLAC__StreamMetadata *to; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 527 | |
| 528 | FLAC__ASSERT(0 != object); |
| 529 | |
| 530 | if(0 != (to = FLAC__metadata_object_new(object->type))) { |
| 531 | to->is_last = object->is_last; |
| 532 | to->type = object->type; |
| 533 | to->length = object->length; |
| 534 | switch(to->type) { |
| 535 | case FLAC__METADATA_TYPE_STREAMINFO: |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 536 | 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] | 537 | break; |
| 538 | case FLAC__METADATA_TYPE_PADDING: |
| 539 | break; |
| 540 | case FLAC__METADATA_TYPE_APPLICATION: |
Josh Coalson | 0f008d2 | 2007-09-11 04:49:56 +0000 | [diff] [blame] | 541 | if(to->length < FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8) { /* underflow check */ |
| 542 | FLAC__metadata_object_delete(to); |
| 543 | return 0; |
| 544 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 545 | memcpy(&to->data.application.id, &object->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8); |
| 546 | if(!copy_bytes_(&to->data.application.data, object->data.application.data, object->length - FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8)) { |
| 547 | FLAC__metadata_object_delete(to); |
| 548 | return 0; |
| 549 | } |
| 550 | break; |
| 551 | case FLAC__METADATA_TYPE_SEEKTABLE: |
| 552 | to->data.seek_table.num_points = object->data.seek_table.num_points; |
Erik de Castro Lopo | 587e118 | 2012-02-17 17:52:12 +1100 | [diff] [blame] | 553 | if(to->data.seek_table.num_points > UINT32_MAX / sizeof(FLAC__StreamMetadata_SeekPoint)) { /* overflow check */ |
Josh Coalson | 0f008d2 | 2007-09-11 04:49:56 +0000 | [diff] [blame] | 554 | FLAC__metadata_object_delete(to); |
| 555 | return 0; |
| 556 | } |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 557 | 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] | 558 | FLAC__metadata_object_delete(to); |
| 559 | return 0; |
| 560 | } |
| 561 | break; |
| 562 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 563 | if(0 != to->data.vorbis_comment.vendor_string.entry) { |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 564 | free(to->data.vorbis_comment.vendor_string.entry); |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 565 | to->data.vorbis_comment.vendor_string.entry = 0; |
| 566 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 567 | if(!copy_vcentry_(&to->data.vorbis_comment.vendor_string, &object->data.vorbis_comment.vendor_string)) { |
| 568 | FLAC__metadata_object_delete(to); |
| 569 | return 0; |
| 570 | } |
| 571 | if(object->data.vorbis_comment.num_comments == 0) { |
| 572 | FLAC__ASSERT(0 == object->data.vorbis_comment.comments); |
| 573 | to->data.vorbis_comment.comments = 0; |
| 574 | } |
| 575 | else { |
| 576 | FLAC__ASSERT(0 != object->data.vorbis_comment.comments); |
| 577 | to->data.vorbis_comment.comments = vorbiscomment_entry_array_copy_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments); |
| 578 | if(0 == to->data.vorbis_comment.comments) { |
| 579 | FLAC__metadata_object_delete(to); |
| 580 | return 0; |
| 581 | } |
| 582 | } |
| 583 | to->data.vorbis_comment.num_comments = object->data.vorbis_comment.num_comments; |
| 584 | break; |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 585 | case FLAC__METADATA_TYPE_CUESHEET: |
| 586 | memcpy(&to->data.cue_sheet, &object->data.cue_sheet, sizeof(FLAC__StreamMetadata_CueSheet)); |
| 587 | if(object->data.cue_sheet.num_tracks == 0) { |
| 588 | FLAC__ASSERT(0 == object->data.cue_sheet.tracks); |
| 589 | } |
| 590 | else { |
| 591 | FLAC__ASSERT(0 != object->data.cue_sheet.tracks); |
| 592 | to->data.cue_sheet.tracks = cuesheet_track_array_copy_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks); |
| 593 | if(0 == to->data.cue_sheet.tracks) { |
| 594 | FLAC__metadata_object_delete(to); |
| 595 | return 0; |
| 596 | } |
| 597 | } |
| 598 | break; |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 599 | case FLAC__METADATA_TYPE_PICTURE: |
| 600 | to->data.picture.type = object->data.picture.type; |
| 601 | if(!copy_cstring_(&to->data.picture.mime_type, object->data.picture.mime_type)) { |
| 602 | FLAC__metadata_object_delete(to); |
| 603 | return 0; |
| 604 | } |
| 605 | if(!copy_cstring_((char**)(&to->data.picture.description), (const char*)object->data.picture.description)) { |
| 606 | FLAC__metadata_object_delete(to); |
| 607 | return 0; |
| 608 | } |
| 609 | to->data.picture.width = object->data.picture.width; |
| 610 | to->data.picture.height = object->data.picture.height; |
| 611 | to->data.picture.depth = object->data.picture.depth; |
Josh Coalson | 74ed294 | 2006-09-23 23:15:05 +0000 | [diff] [blame] | 612 | to->data.picture.colors = object->data.picture.colors; |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 613 | to->data.picture.data_length = object->data.picture.data_length; |
| 614 | if(!copy_bytes_((&to->data.picture.data), object->data.picture.data, object->data.picture.data_length)) { |
| 615 | FLAC__metadata_object_delete(to); |
| 616 | return 0; |
| 617 | } |
| 618 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 619 | default: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 620 | if(!copy_bytes_(&to->data.unknown.data, object->data.unknown.data, object->length)) { |
| 621 | FLAC__metadata_object_delete(to); |
| 622 | return 0; |
| 623 | } |
| 624 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 625 | } |
| 626 | } |
| 627 | |
| 628 | return to; |
| 629 | } |
| 630 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 631 | void FLAC__metadata_object_delete_data(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 632 | { |
| 633 | FLAC__ASSERT(0 != object); |
| 634 | |
| 635 | switch(object->type) { |
| 636 | case FLAC__METADATA_TYPE_STREAMINFO: |
| 637 | case FLAC__METADATA_TYPE_PADDING: |
| 638 | break; |
| 639 | case FLAC__METADATA_TYPE_APPLICATION: |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 640 | if(0 != object->data.application.data) { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 641 | free(object->data.application.data); |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 642 | object->data.application.data = 0; |
| 643 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 644 | break; |
| 645 | case FLAC__METADATA_TYPE_SEEKTABLE: |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 646 | if(0 != object->data.seek_table.points) { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 647 | free(object->data.seek_table.points); |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 648 | object->data.seek_table.points = 0; |
| 649 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 650 | break; |
| 651 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 652 | if(0 != object->data.vorbis_comment.vendor_string.entry) { |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 653 | free(object->data.vorbis_comment.vendor_string.entry); |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 654 | object->data.vorbis_comment.vendor_string.entry = 0; |
| 655 | } |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 656 | if(0 != object->data.vorbis_comment.comments) { |
| 657 | FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0); |
| 658 | vorbiscomment_entry_array_delete_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments); |
| 659 | } |
| 660 | break; |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 661 | case FLAC__METADATA_TYPE_CUESHEET: |
| 662 | if(0 != object->data.cue_sheet.tracks) { |
| 663 | FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0); |
| 664 | cuesheet_track_array_delete_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks); |
| 665 | } |
| 666 | break; |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 667 | case FLAC__METADATA_TYPE_PICTURE: |
| 668 | if(0 != object->data.picture.mime_type) { |
| 669 | free(object->data.picture.mime_type); |
| 670 | object->data.picture.mime_type = 0; |
| 671 | } |
| 672 | if(0 != object->data.picture.description) { |
| 673 | free(object->data.picture.description); |
| 674 | object->data.picture.description = 0; |
| 675 | } |
| 676 | if(0 != object->data.picture.data) { |
| 677 | free(object->data.picture.data); |
| 678 | object->data.picture.data = 0; |
| 679 | } |
| 680 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 681 | default: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 682 | if(0 != object->data.unknown.data) { |
| 683 | free(object->data.unknown.data); |
| 684 | object->data.unknown.data = 0; |
| 685 | } |
| 686 | break; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 687 | } |
| 688 | } |
| 689 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 690 | FLAC_API void FLAC__metadata_object_delete(FLAC__StreamMetadata *object) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 691 | { |
| 692 | FLAC__metadata_object_delete_data(object); |
| 693 | free(object); |
| 694 | } |
| 695 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 696 | 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] | 697 | { |
| 698 | if(block1->min_blocksize != block2->min_blocksize) |
| 699 | return false; |
| 700 | if(block1->max_blocksize != block2->max_blocksize) |
| 701 | return false; |
| 702 | if(block1->min_framesize != block2->min_framesize) |
| 703 | return false; |
| 704 | if(block1->max_framesize != block2->max_framesize) |
| 705 | return false; |
| 706 | if(block1->sample_rate != block2->sample_rate) |
| 707 | return false; |
| 708 | if(block1->channels != block2->channels) |
| 709 | return false; |
| 710 | if(block1->bits_per_sample != block2->bits_per_sample) |
| 711 | return false; |
| 712 | if(block1->total_samples != block2->total_samples) |
| 713 | return false; |
| 714 | if(0 != memcmp(block1->md5sum, block2->md5sum, 16)) |
| 715 | return false; |
| 716 | return true; |
| 717 | } |
| 718 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 719 | 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] | 720 | { |
| 721 | FLAC__ASSERT(0 != block1); |
| 722 | FLAC__ASSERT(0 != block2); |
| 723 | FLAC__ASSERT(block_length >= sizeof(block1->id)); |
| 724 | |
| 725 | if(0 != memcmp(block1->id, block2->id, sizeof(block1->id))) |
| 726 | return false; |
| 727 | if(0 != block1->data && 0 != block2->data) |
| 728 | return 0 == memcmp(block1->data, block2->data, block_length - sizeof(block1->id)); |
| 729 | else |
| 730 | return block1->data == block2->data; |
| 731 | } |
| 732 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 733 | 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] | 734 | { |
| 735 | unsigned i; |
| 736 | |
| 737 | FLAC__ASSERT(0 != block1); |
| 738 | FLAC__ASSERT(0 != block2); |
| 739 | |
| 740 | if(block1->num_points != block2->num_points) |
| 741 | return false; |
| 742 | |
| 743 | if(0 != block1->points && 0 != block2->points) { |
| 744 | for(i = 0; i < block1->num_points; i++) { |
| 745 | if(block1->points[i].sample_number != block2->points[i].sample_number) |
| 746 | return false; |
| 747 | if(block1->points[i].stream_offset != block2->points[i].stream_offset) |
| 748 | return false; |
| 749 | if(block1->points[i].frame_samples != block2->points[i].frame_samples) |
| 750 | return false; |
| 751 | } |
| 752 | return true; |
| 753 | } |
| 754 | else |
| 755 | return block1->points == block2->points; |
| 756 | } |
| 757 | |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 758 | 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] | 759 | { |
| 760 | unsigned i; |
| 761 | |
| 762 | if(block1->vendor_string.length != block2->vendor_string.length) |
| 763 | return false; |
| 764 | |
| 765 | if(0 != block1->vendor_string.entry && 0 != block2->vendor_string.entry) { |
| 766 | if(0 != memcmp(block1->vendor_string.entry, block2->vendor_string.entry, block1->vendor_string.length)) |
| 767 | return false; |
| 768 | } |
| 769 | else if(block1->vendor_string.entry != block2->vendor_string.entry) |
| 770 | return false; |
| 771 | |
| 772 | if(block1->num_comments != block2->num_comments) |
| 773 | return false; |
| 774 | |
| 775 | for(i = 0; i < block1->num_comments; i++) { |
| 776 | if(0 != block1->comments[i].entry && 0 != block2->comments[i].entry) { |
| 777 | if(0 != memcmp(block1->comments[i].entry, block2->comments[i].entry, block1->comments[i].length)) |
| 778 | return false; |
| 779 | } |
| 780 | else if(block1->comments[i].entry != block2->comments[i].entry) |
| 781 | return false; |
| 782 | } |
| 783 | return true; |
| 784 | } |
| 785 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 786 | static FLAC__bool compare_block_data_cuesheet_(const FLAC__StreamMetadata_CueSheet *block1, const FLAC__StreamMetadata_CueSheet *block2) |
| 787 | { |
| 788 | unsigned i, j; |
| 789 | |
| 790 | if(0 != strcmp(block1->media_catalog_number, block2->media_catalog_number)) |
| 791 | return false; |
| 792 | |
| 793 | if(block1->lead_in != block2->lead_in) |
| 794 | return false; |
| 795 | |
Josh Coalson | 8f0c71b | 2002-12-05 06:37:46 +0000 | [diff] [blame] | 796 | if(block1->is_cd != block2->is_cd) |
| 797 | return false; |
| 798 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 799 | if(block1->num_tracks != block2->num_tracks) |
| 800 | return false; |
| 801 | |
| 802 | if(0 != block1->tracks && 0 != block2->tracks) { |
| 803 | FLAC__ASSERT(block1->num_tracks > 0); |
| 804 | for(i = 0; i < block1->num_tracks; i++) { |
| 805 | if(block1->tracks[i].offset != block2->tracks[i].offset) |
| 806 | return false; |
| 807 | if(block1->tracks[i].number != block2->tracks[i].number) |
| 808 | return false; |
| 809 | if(0 != memcmp(block1->tracks[i].isrc, block2->tracks[i].isrc, sizeof(block1->tracks[i].isrc))) |
| 810 | return false; |
| 811 | if(block1->tracks[i].type != block2->tracks[i].type) |
| 812 | return false; |
| 813 | if(block1->tracks[i].pre_emphasis != block2->tracks[i].pre_emphasis) |
| 814 | return false; |
| 815 | if(block1->tracks[i].num_indices != block2->tracks[i].num_indices) |
| 816 | return false; |
| 817 | if(0 != block1->tracks[i].indices && 0 != block2->tracks[i].indices) { |
| 818 | FLAC__ASSERT(block1->tracks[i].num_indices > 0); |
| 819 | for(j = 0; j < block1->tracks[i].num_indices; j++) { |
| 820 | if(block1->tracks[i].indices[j].offset != block2->tracks[i].indices[j].offset) |
| 821 | return false; |
| 822 | if(block1->tracks[i].indices[j].number != block2->tracks[i].indices[j].number) |
| 823 | return false; |
| 824 | } |
| 825 | } |
| 826 | else if(block1->tracks[i].indices != block2->tracks[i].indices) |
| 827 | return false; |
| 828 | } |
| 829 | } |
| 830 | else if(block1->tracks != block2->tracks) |
| 831 | return false; |
| 832 | return true; |
| 833 | } |
| 834 | |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 835 | static FLAC__bool compare_block_data_picture_(const FLAC__StreamMetadata_Picture *block1, const FLAC__StreamMetadata_Picture *block2) |
| 836 | { |
| 837 | if(block1->type != block2->type) |
| 838 | return false; |
| 839 | if(block1->mime_type != block2->mime_type && (0 == block1->mime_type || 0 == block2->mime_type || strcmp(block1->mime_type, block2->mime_type))) |
| 840 | return false; |
| 841 | if(block1->description != block2->description && (0 == block1->description || 0 == block2->description || strcmp((const char *)block1->description, (const char *)block2->description))) |
| 842 | return false; |
| 843 | if(block1->width != block2->width) |
| 844 | return false; |
| 845 | if(block1->height != block2->height) |
| 846 | return false; |
| 847 | if(block1->depth != block2->depth) |
| 848 | return false; |
Josh Coalson | 74ed294 | 2006-09-23 23:15:05 +0000 | [diff] [blame] | 849 | if(block1->colors != block2->colors) |
| 850 | return false; |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 851 | if(block1->data_length != block2->data_length) |
| 852 | return false; |
| 853 | if(block1->data != block2->data && (0 == block1->data || 0 == block2->data || memcmp(block1->data, block2->data, block1->data_length))) |
| 854 | return false; |
| 855 | return true; |
| 856 | } |
| 857 | |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 858 | static FLAC__bool compare_block_data_unknown_(const FLAC__StreamMetadata_Unknown *block1, const FLAC__StreamMetadata_Unknown *block2, unsigned block_length) |
| 859 | { |
| 860 | FLAC__ASSERT(0 != block1); |
| 861 | FLAC__ASSERT(0 != block2); |
| 862 | |
| 863 | if(0 != block1->data && 0 != block2->data) |
| 864 | return 0 == memcmp(block1->data, block2->data, block_length); |
| 865 | else |
| 866 | return block1->data == block2->data; |
| 867 | } |
| 868 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 869 | 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] | 870 | { |
Josh Coalson | d8ab346 | 2002-07-11 05:54:05 +0000 | [diff] [blame] | 871 | FLAC__ASSERT(0 != block1); |
| 872 | FLAC__ASSERT(0 != block2); |
| 873 | |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 874 | if(block1->type != block2->type) { |
| 875 | return false; |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 876 | } |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 877 | if(block1->is_last != block2->is_last) { |
| 878 | return false; |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 879 | } |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 880 | if(block1->length != block2->length) { |
| 881 | return false; |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 882 | } |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 883 | switch(block1->type) { |
| 884 | case FLAC__METADATA_TYPE_STREAMINFO: |
| 885 | return compare_block_data_streaminfo_(&block1->data.stream_info, &block2->data.stream_info); |
| 886 | case FLAC__METADATA_TYPE_PADDING: |
| 887 | return true; /* we don't compare the padding guts */ |
| 888 | case FLAC__METADATA_TYPE_APPLICATION: |
| 889 | return compare_block_data_application_(&block1->data.application, &block2->data.application, block1->length); |
| 890 | case FLAC__METADATA_TYPE_SEEKTABLE: |
| 891 | return compare_block_data_seektable_(&block1->data.seek_table, &block2->data.seek_table); |
| 892 | case FLAC__METADATA_TYPE_VORBIS_COMMENT: |
| 893 | 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] | 894 | case FLAC__METADATA_TYPE_CUESHEET: |
| 895 | 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] | 896 | case FLAC__METADATA_TYPE_PICTURE: |
| 897 | return compare_block_data_picture_(&block1->data.picture, &block2->data.picture); |
Josh Coalson | 57ba6f4 | 2002-06-07 05:27:37 +0000 | [diff] [blame] | 898 | default: |
Josh Coalson | d060947 | 2003-01-10 05:37:13 +0000 | [diff] [blame] | 899 | 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] | 900 | } |
| 901 | } |
| 902 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 903 | 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] | 904 | { |
| 905 | FLAC__byte *save; |
| 906 | |
Josh Coalson | d8ab346 | 2002-07-11 05:54:05 +0000 | [diff] [blame] | 907 | FLAC__ASSERT(0 != object); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 908 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_APPLICATION); |
| 909 | FLAC__ASSERT((0 != data && length > 0) || (0 == data && length == 0 && copy == false)); |
| 910 | |
| 911 | save = object->data.application.data; |
| 912 | |
| 913 | /* do the copy first so that if we fail we leave the object untouched */ |
| 914 | if(copy) { |
| 915 | if(!copy_bytes_(&object->data.application.data, data, length)) |
| 916 | return false; |
| 917 | } |
| 918 | else { |
| 919 | object->data.application.data = data; |
| 920 | } |
| 921 | |
| 922 | if(0 != save) |
| 923 | free(save); |
| 924 | |
| 925 | object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8 + length; |
| 926 | return true; |
| 927 | } |
| 928 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 929 | 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] | 930 | { |
| 931 | FLAC__ASSERT(0 != object); |
| 932 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 933 | |
| 934 | if(0 == object->data.seek_table.points) { |
| 935 | FLAC__ASSERT(object->data.seek_table.num_points == 0); |
| 936 | if(0 == new_num_points) |
| 937 | return true; |
| 938 | else if(0 == (object->data.seek_table.points = seekpoint_array_new_(new_num_points))) |
| 939 | return false; |
| 940 | } |
| 941 | else { |
Josh Coalson | 0f008d2 | 2007-09-11 04:49:56 +0000 | [diff] [blame] | 942 | const size_t old_size = object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint); |
| 943 | const size_t new_size = new_num_points * sizeof(FLAC__StreamMetadata_SeekPoint); |
| 944 | |
| 945 | /* overflow check */ |
Erik de Castro Lopo | 587e118 | 2012-02-17 17:52:12 +1100 | [diff] [blame] | 946 | if(new_num_points > UINT32_MAX / sizeof(FLAC__StreamMetadata_SeekPoint)) |
Josh Coalson | 0f008d2 | 2007-09-11 04:49:56 +0000 | [diff] [blame] | 947 | return false; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 948 | |
| 949 | FLAC__ASSERT(object->data.seek_table.num_points > 0); |
| 950 | |
| 951 | if(new_size == 0) { |
| 952 | free(object->data.seek_table.points); |
| 953 | object->data.seek_table.points = 0; |
| 954 | } |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 955 | else if(0 == (object->data.seek_table.points = realloc(object->data.seek_table.points, new_size))) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 956 | return false; |
| 957 | |
| 958 | /* if growing, set new elements to placeholders */ |
| 959 | if(new_size > old_size) { |
| 960 | unsigned i; |
| 961 | for(i = object->data.seek_table.num_points; i < new_num_points; i++) { |
| 962 | object->data.seek_table.points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER; |
| 963 | object->data.seek_table.points[i].stream_offset = 0; |
| 964 | object->data.seek_table.points[i].frame_samples = 0; |
| 965 | } |
| 966 | } |
| 967 | } |
| 968 | |
| 969 | object->data.seek_table.num_points = new_num_points; |
| 970 | |
| 971 | seektable_calculate_length_(object); |
| 972 | return true; |
| 973 | } |
| 974 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 975 | 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] | 976 | { |
| 977 | FLAC__ASSERT(0 != object); |
| 978 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 979 | FLAC__ASSERT(point_num < object->data.seek_table.num_points); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 980 | |
| 981 | object->data.seek_table.points[point_num] = point; |
| 982 | } |
| 983 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 984 | 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] | 985 | { |
| 986 | int i; |
| 987 | |
| 988 | FLAC__ASSERT(0 != object); |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 989 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 990 | FLAC__ASSERT(point_num <= object->data.seek_table.num_points); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 991 | |
| 992 | if(!FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points+1)) |
| 993 | return false; |
| 994 | |
| 995 | /* move all points >= point_num forward one space */ |
| 996 | for(i = (int)object->data.seek_table.num_points-1; i > (int)point_num; i--) |
| 997 | object->data.seek_table.points[i] = object->data.seek_table.points[i-1]; |
| 998 | |
| 999 | FLAC__metadata_object_seektable_set_point(object, point_num, point); |
| 1000 | seektable_calculate_length_(object); |
| 1001 | return true; |
| 1002 | } |
| 1003 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1004 | 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] | 1005 | { |
| 1006 | unsigned i; |
| 1007 | |
| 1008 | FLAC__ASSERT(0 != object); |
| 1009 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1010 | FLAC__ASSERT(point_num < object->data.seek_table.num_points); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1011 | |
| 1012 | /* move all points > point_num backward one space */ |
| 1013 | for(i = point_num; i < object->data.seek_table.num_points-1; i++) |
| 1014 | object->data.seek_table.points[i] = object->data.seek_table.points[i+1]; |
| 1015 | |
| 1016 | return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points-1); |
| 1017 | } |
| 1018 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1019 | 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] | 1020 | { |
Josh Coalson | 28e08d8 | 2002-06-05 05:56:41 +0000 | [diff] [blame] | 1021 | FLAC__ASSERT(0 != object); |
| 1022 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 1023 | |
Josh Coalson | 0833f34 | 2002-07-15 05:31:55 +0000 | [diff] [blame] | 1024 | return FLAC__format_seektable_is_legal(&object->data.seek_table); |
Josh Coalson | 28e08d8 | 2002-06-05 05:56:41 +0000 | [diff] [blame] | 1025 | } |
| 1026 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1027 | 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] | 1028 | { |
| 1029 | FLAC__ASSERT(0 != object); |
| 1030 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 1031 | |
| 1032 | if(num > 0) |
| 1033 | /* WATCHOUT: we rely on the fact that growing the array adds PLACEHOLDERS at the end */ |
| 1034 | return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points + num); |
| 1035 | else |
| 1036 | return true; |
| 1037 | } |
| 1038 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1039 | 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] | 1040 | { |
| 1041 | FLAC__StreamMetadata_SeekTable *seek_table; |
| 1042 | |
| 1043 | FLAC__ASSERT(0 != object); |
| 1044 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 1045 | |
| 1046 | seek_table = &object->data.seek_table; |
| 1047 | |
| 1048 | if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + 1)) |
| 1049 | return false; |
| 1050 | |
| 1051 | seek_table->points[seek_table->num_points - 1].sample_number = sample_number; |
| 1052 | seek_table->points[seek_table->num_points - 1].stream_offset = 0; |
| 1053 | seek_table->points[seek_table->num_points - 1].frame_samples = 0; |
| 1054 | |
| 1055 | return true; |
| 1056 | } |
| 1057 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1058 | 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] | 1059 | { |
| 1060 | FLAC__ASSERT(0 != object); |
| 1061 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 1062 | FLAC__ASSERT(0 != sample_numbers || num == 0); |
| 1063 | |
| 1064 | if(num > 0) { |
| 1065 | FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table; |
| 1066 | unsigned i, j; |
| 1067 | |
| 1068 | i = seek_table->num_points; |
| 1069 | |
| 1070 | if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num)) |
| 1071 | return false; |
| 1072 | |
| 1073 | for(j = 0; j < num; i++, j++) { |
| 1074 | seek_table->points[i].sample_number = sample_numbers[j]; |
| 1075 | seek_table->points[i].stream_offset = 0; |
| 1076 | seek_table->points[i].frame_samples = 0; |
| 1077 | } |
| 1078 | } |
| 1079 | |
| 1080 | return true; |
| 1081 | } |
| 1082 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1083 | 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] | 1084 | { |
| 1085 | FLAC__ASSERT(0 != object); |
| 1086 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 1087 | FLAC__ASSERT(total_samples > 0); |
| 1088 | |
Josh Coalson | 6b21f66 | 2006-09-13 01:42:27 +0000 | [diff] [blame] | 1089 | if(num > 0 && total_samples > 0) { |
Josh Coalson | 5a5de73 | 2002-08-01 06:37:11 +0000 | [diff] [blame] | 1090 | FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table; |
| 1091 | unsigned i, j; |
| 1092 | |
| 1093 | i = seek_table->num_points; |
| 1094 | |
| 1095 | if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num)) |
| 1096 | return false; |
| 1097 | |
| 1098 | for(j = 0; j < num; i++, j++) { |
| 1099 | seek_table->points[i].sample_number = total_samples * (FLAC__uint64)j / (FLAC__uint64)num; |
| 1100 | seek_table->points[i].stream_offset = 0; |
| 1101 | seek_table->points[i].frame_samples = 0; |
| 1102 | } |
| 1103 | } |
| 1104 | |
| 1105 | return true; |
| 1106 | } |
| 1107 | |
Josh Coalson | 6b21f66 | 2006-09-13 01:42:27 +0000 | [diff] [blame] | 1108 | FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points_by_samples(FLAC__StreamMetadata *object, unsigned samples, FLAC__uint64 total_samples) |
| 1109 | { |
| 1110 | FLAC__ASSERT(0 != object); |
| 1111 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 1112 | FLAC__ASSERT(samples > 0); |
| 1113 | FLAC__ASSERT(total_samples > 0); |
| 1114 | |
| 1115 | if(samples > 0 && total_samples > 0) { |
| 1116 | FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table; |
| 1117 | unsigned i, j; |
| 1118 | FLAC__uint64 num, sample; |
| 1119 | |
| 1120 | num = 1 + total_samples / samples; /* 1+ for the first sample at 0 */ |
| 1121 | /* now account for the fact that we don't place a seekpoint at "total_samples" since samples are number from 0: */ |
| 1122 | if(total_samples % samples == 0) |
| 1123 | num--; |
| 1124 | |
| 1125 | i = seek_table->num_points; |
| 1126 | |
Josh Coalson | a65fd93 | 2006-10-03 01:02:44 +0000 | [diff] [blame] | 1127 | 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] | 1128 | return false; |
| 1129 | |
| 1130 | sample = 0; |
| 1131 | for(j = 0; j < num; i++, j++, sample += samples) { |
| 1132 | seek_table->points[i].sample_number = sample; |
| 1133 | seek_table->points[i].stream_offset = 0; |
| 1134 | seek_table->points[i].frame_samples = 0; |
| 1135 | } |
| 1136 | } |
| 1137 | |
| 1138 | return true; |
| 1139 | } |
| 1140 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1141 | 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] | 1142 | { |
| 1143 | unsigned unique; |
| 1144 | |
| 1145 | FLAC__ASSERT(0 != object); |
| 1146 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE); |
| 1147 | |
| 1148 | unique = FLAC__format_seektable_sort(&object->data.seek_table); |
| 1149 | |
| 1150 | return !compact || FLAC__metadata_object_seektable_resize_points(object, unique); |
| 1151 | } |
| 1152 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1153 | 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] | 1154 | { |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame] | 1155 | if(!FLAC__format_vorbiscomment_entry_value_is_legal(entry.entry, entry.length)) |
| 1156 | return false; |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1157 | 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] | 1158 | } |
| 1159 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1160 | 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] | 1161 | { |
| 1162 | FLAC__ASSERT(0 != object); |
| 1163 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 1164 | |
| 1165 | if(0 == object->data.vorbis_comment.comments) { |
| 1166 | FLAC__ASSERT(object->data.vorbis_comment.num_comments == 0); |
| 1167 | if(0 == new_num_comments) |
| 1168 | return true; |
| 1169 | else if(0 == (object->data.vorbis_comment.comments = vorbiscomment_entry_array_new_(new_num_comments))) |
| 1170 | return false; |
| 1171 | } |
| 1172 | else { |
Josh Coalson | 0f008d2 | 2007-09-11 04:49:56 +0000 | [diff] [blame] | 1173 | const size_t old_size = object->data.vorbis_comment.num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry); |
| 1174 | const size_t new_size = new_num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry); |
| 1175 | |
| 1176 | /* overflow check */ |
Erik de Castro Lopo | 587e118 | 2012-02-17 17:52:12 +1100 | [diff] [blame] | 1177 | if(new_num_comments > UINT32_MAX / sizeof(FLAC__StreamMetadata_VorbisComment_Entry)) |
Josh Coalson | 0f008d2 | 2007-09-11 04:49:56 +0000 | [diff] [blame] | 1178 | return false; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1179 | |
| 1180 | FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0); |
| 1181 | |
| 1182 | /* if shrinking, free the truncated entries */ |
| 1183 | if(new_num_comments < object->data.vorbis_comment.num_comments) { |
| 1184 | unsigned i; |
| 1185 | for(i = new_num_comments; i < object->data.vorbis_comment.num_comments; i++) |
| 1186 | if(0 != object->data.vorbis_comment.comments[i].entry) |
| 1187 | free(object->data.vorbis_comment.comments[i].entry); |
| 1188 | } |
| 1189 | |
| 1190 | if(new_size == 0) { |
| 1191 | free(object->data.vorbis_comment.comments); |
| 1192 | object->data.vorbis_comment.comments = 0; |
| 1193 | } |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 1194 | else if(0 == (object->data.vorbis_comment.comments = realloc(object->data.vorbis_comment.comments, new_size))) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1195 | return false; |
| 1196 | |
| 1197 | /* if growing, zero all the length/pointers of new elements */ |
| 1198 | if(new_size > old_size) |
| 1199 | memset(object->data.vorbis_comment.comments + object->data.vorbis_comment.num_comments, 0, new_size - old_size); |
| 1200 | } |
| 1201 | |
| 1202 | object->data.vorbis_comment.num_comments = new_num_comments; |
| 1203 | |
| 1204 | vorbiscomment_calculate_length_(object); |
| 1205 | return true; |
| 1206 | } |
| 1207 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1208 | 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] | 1209 | { |
Josh Coalson | fb99386 | 2003-01-15 03:18:07 +0000 | [diff] [blame] | 1210 | FLAC__ASSERT(0 != object); |
| 1211 | FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments); |
| 1212 | |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame] | 1213 | if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) |
| 1214 | return false; |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1215 | 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] | 1216 | } |
| 1217 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1218 | 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] | 1219 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 1220 | FLAC__StreamMetadata_VorbisComment *vc; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1221 | |
| 1222 | FLAC__ASSERT(0 != object); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1223 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1224 | FLAC__ASSERT(comment_num <= object->data.vorbis_comment.num_comments); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1225 | |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame] | 1226 | if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) |
| 1227 | return false; |
| 1228 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1229 | vc = &object->data.vorbis_comment; |
| 1230 | |
| 1231 | if(!FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments+1)) |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1232 | return false; |
| 1233 | |
| 1234 | /* move all comments >= comment_num forward one space */ |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 1235 | 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] | 1236 | vc->comments[comment_num].length = 0; |
| 1237 | vc->comments[comment_num].entry = 0; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1238 | |
| 1239 | return FLAC__metadata_object_vorbiscomment_set_comment(object, comment_num, entry, copy); |
| 1240 | } |
| 1241 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1242 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_append_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy) |
| 1243 | { |
| 1244 | FLAC__ASSERT(0 != object); |
| 1245 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 1246 | return FLAC__metadata_object_vorbiscomment_insert_comment(object, object->data.vorbis_comment.num_comments, entry, copy); |
| 1247 | } |
| 1248 | |
| 1249 | FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_replace_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool all, FLAC__bool copy) |
| 1250 | { |
| 1251 | FLAC__ASSERT(0 != entry.entry && entry.length > 0); |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame] | 1252 | |
| 1253 | if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) |
| 1254 | return false; |
| 1255 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1256 | { |
| 1257 | int i; |
Josh Coalson | 9bedd78 | 2007-02-22 01:37:33 +0000 | [diff] [blame] | 1258 | size_t field_name_length; |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1259 | const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length); |
| 1260 | |
| 1261 | FLAC__ASSERT(0 != eq); |
| 1262 | |
| 1263 | if(0 == eq) |
| 1264 | return false; /* double protection */ |
| 1265 | |
| 1266 | field_name_length = eq-entry.entry; |
| 1267 | |
Josh Coalson | e95399c | 2008-09-15 05:37:27 +0000 | [diff] [blame] | 1268 | i = vorbiscomment_find_entry_from_(object, 0, (const char *)entry.entry, field_name_length); |
| 1269 | if(i >= 0) { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1270 | unsigned index = (unsigned)i; |
| 1271 | if(!FLAC__metadata_object_vorbiscomment_set_comment(object, index, entry, copy)) |
| 1272 | return false; |
Josh Coalson | e95399c | 2008-09-15 05:37:27 +0000 | [diff] [blame] | 1273 | entry = object->data.vorbis_comment.comments[index]; |
| 1274 | index++; /* skip over replaced comment */ |
| 1275 | if(all && index < object->data.vorbis_comment.num_comments) { |
| 1276 | i = vorbiscomment_find_entry_from_(object, index, (const char *)entry.entry, field_name_length); |
| 1277 | while(i >= 0) { |
| 1278 | index = (unsigned)i; |
| 1279 | if(!FLAC__metadata_object_vorbiscomment_delete_comment(object, index)) |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1280 | return false; |
Josh Coalson | e95399c | 2008-09-15 05:37:27 +0000 | [diff] [blame] | 1281 | if(index < object->data.vorbis_comment.num_comments) |
| 1282 | i = vorbiscomment_find_entry_from_(object, index, (const char *)entry.entry, field_name_length); |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1283 | else |
| 1284 | i = -1; |
| 1285 | } |
| 1286 | } |
| 1287 | return true; |
| 1288 | } |
| 1289 | else |
| 1290 | return FLAC__metadata_object_vorbiscomment_append_comment(object, entry, copy); |
| 1291 | } |
| 1292 | } |
| 1293 | |
Josh Coalson | 6afed9f | 2002-10-16 22:29:47 +0000 | [diff] [blame] | 1294 | 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] | 1295 | { |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 1296 | FLAC__StreamMetadata_VorbisComment *vc; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1297 | |
| 1298 | FLAC__ASSERT(0 != object); |
| 1299 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1300 | FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1301 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1302 | vc = &object->data.vorbis_comment; |
| 1303 | |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1304 | /* free the comment at comment_num */ |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1305 | if(0 != vc->comments[comment_num].entry) |
| 1306 | free(vc->comments[comment_num].entry); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1307 | |
| 1308 | /* move all comments > comment_num backward one space */ |
Josh Coalson | cc68251 | 2002-06-08 04:53:42 +0000 | [diff] [blame] | 1309 | 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] | 1310 | vc->comments[vc->num_comments-1].length = 0; |
| 1311 | vc->comments[vc->num_comments-1].entry = 0; |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1312 | |
Josh Coalson | 6b8e530 | 2002-05-31 06:23:09 +0000 | [diff] [blame] | 1313 | return FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments-1); |
Josh Coalson | 90ced91 | 2002-05-30 05:23:38 +0000 | [diff] [blame] | 1314 | } |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1315 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1316 | 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] | 1317 | { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1318 | FLAC__ASSERT(0 != entry); |
| 1319 | FLAC__ASSERT(0 != field_name); |
| 1320 | FLAC__ASSERT(0 != field_value); |
| 1321 | |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame] | 1322 | if(!FLAC__format_vorbiscomment_entry_name_is_legal(field_name)) |
| 1323 | return false; |
Josh Coalson | b4de169 | 2005-08-24 07:39:25 +0000 | [diff] [blame] | 1324 | 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] | 1325 | return false; |
| 1326 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1327 | { |
| 1328 | const size_t nn = strlen(field_name); |
| 1329 | const size_t nv = strlen(field_value); |
| 1330 | entry->length = nn + 1 /*=*/ + nv; |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 1331 | if(0 == (entry->entry = safe_malloc_add_4op_(nn, /*+*/1, /*+*/nv, /*+*/1))) |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1332 | return false; |
| 1333 | memcpy(entry->entry, field_name, nn); |
| 1334 | entry->entry[nn] = '='; |
| 1335 | memcpy(entry->entry+nn+1, field_value, nv); |
| 1336 | entry->entry[entry->length] = '\0'; |
| 1337 | } |
Erik de Castro Lopo | 587e118 | 2012-02-17 17:52:12 +1100 | [diff] [blame] | 1338 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1339 | return true; |
| 1340 | } |
| 1341 | |
| 1342 | 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) |
| 1343 | { |
| 1344 | FLAC__ASSERT(0 != entry.entry && entry.length > 0); |
| 1345 | FLAC__ASSERT(0 != field_name); |
| 1346 | FLAC__ASSERT(0 != field_value); |
Josh Coalson | 2de1124 | 2004-12-30 03:41:19 +0000 | [diff] [blame] | 1347 | |
| 1348 | if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) |
| 1349 | return false; |
| 1350 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1351 | { |
| 1352 | const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length); |
| 1353 | const size_t nn = eq-entry.entry; |
| 1354 | const size_t nv = entry.length-nn-1; /* -1 for the '=' */ |
| 1355 | FLAC__ASSERT(0 != eq); |
| 1356 | if(0 == eq) |
| 1357 | return false; /* double protection */ |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 1358 | if(0 == (*field_name = safe_malloc_add_2op_(nn, /*+*/1))) |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1359 | return false; |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 1360 | if(0 == (*field_value = safe_malloc_add_2op_(nv, /*+*/1))) { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1361 | free(*field_name); |
| 1362 | return false; |
| 1363 | } |
| 1364 | memcpy(*field_name, entry.entry, nn); |
| 1365 | memcpy(*field_value, entry.entry+nn+1, nv); |
| 1366 | (*field_name)[nn] = '\0'; |
| 1367 | (*field_value)[nv] = '\0'; |
| 1368 | } |
| 1369 | |
| 1370 | return true; |
| 1371 | } |
| 1372 | |
Josh Coalson | 4462311 | 2005-01-30 18:15:36 +0000 | [diff] [blame] | 1373 | 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] | 1374 | { |
| 1375 | FLAC__ASSERT(0 != entry.entry && entry.length > 0); |
| 1376 | { |
| 1377 | const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length); |
Erik de Castro Lopo | dac99fa | 2012-02-08 21:07:08 +1100 | [diff] [blame] | 1378 | #if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__ |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1379 | #define FLAC__STRNCASECMP strnicmp |
| 1380 | #else |
| 1381 | #define FLAC__STRNCASECMP strncasecmp |
| 1382 | #endif |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1383 | 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] | 1384 | #undef FLAC__STRNCASECMP |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1385 | } |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1386 | } |
| 1387 | |
Josh Coalson | b667e70 | 2002-11-05 07:24:33 +0000 | [diff] [blame] | 1388 | 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] | 1389 | { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1390 | FLAC__ASSERT(0 != field_name); |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1391 | |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1392 | return vorbiscomment_find_entry_from_(object, offset, field_name, strlen(field_name)); |
Josh Coalson | 45bb988 | 2002-10-26 04:34:16 +0000 | [diff] [blame] | 1393 | } |
| 1394 | |
| 1395 | FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entry_matching(FLAC__StreamMetadata *object, const char *field_name) |
| 1396 | { |
| 1397 | const unsigned field_name_length = strlen(field_name); |
| 1398 | unsigned i; |
| 1399 | |
| 1400 | FLAC__ASSERT(0 != object); |
| 1401 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 1402 | |
| 1403 | for(i = 0; i < object->data.vorbis_comment.num_comments; i++) { |
Josh Coalson | def597e | 2004-12-30 00:59:30 +0000 | [diff] [blame] | 1404 | 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] | 1405 | if(!FLAC__metadata_object_vorbiscomment_delete_comment(object, i)) |
| 1406 | return -1; |
| 1407 | else |
| 1408 | return 1; |
| 1409 | } |
| 1410 | } |
| 1411 | |
| 1412 | return 0; |
| 1413 | } |
| 1414 | |
| 1415 | FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entries_matching(FLAC__StreamMetadata *object, const char *field_name) |
| 1416 | { |
| 1417 | FLAC__bool ok = true; |
| 1418 | unsigned matching = 0; |
| 1419 | const unsigned field_name_length = strlen(field_name); |
| 1420 | int i; |
| 1421 | |
| 1422 | FLAC__ASSERT(0 != object); |
| 1423 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| 1424 | |
| 1425 | /* must delete from end to start otherwise it will interfere with our iteration */ |
| 1426 | 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] | 1427 | 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] | 1428 | matching++; |
| 1429 | ok &= FLAC__metadata_object_vorbiscomment_delete_comment(object, (unsigned)i); |
| 1430 | } |
| 1431 | } |
| 1432 | |
| 1433 | return ok? (int)matching : -1; |
| 1434 | } |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1435 | |
Josh Coalson | e3ec2ad | 2007-01-31 03:53:22 +0000 | [diff] [blame] | 1436 | 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] | 1437 | { |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 1438 | return calloc(1, sizeof(FLAC__StreamMetadata_CueSheet_Track)); |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 1439 | } |
| 1440 | |
| 1441 | FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_clone(const FLAC__StreamMetadata_CueSheet_Track *object) |
| 1442 | { |
| 1443 | FLAC__StreamMetadata_CueSheet_Track *to; |
| 1444 | |
| 1445 | FLAC__ASSERT(0 != object); |
| 1446 | |
| 1447 | if(0 != (to = FLAC__metadata_object_cuesheet_track_new())) { |
| 1448 | if(!copy_track_(to, object)) { |
| 1449 | FLAC__metadata_object_cuesheet_track_delete(to); |
| 1450 | return 0; |
| 1451 | } |
| 1452 | } |
| 1453 | |
| 1454 | return to; |
| 1455 | } |
| 1456 | |
| 1457 | void FLAC__metadata_object_cuesheet_track_delete_data(FLAC__StreamMetadata_CueSheet_Track *object) |
| 1458 | { |
| 1459 | FLAC__ASSERT(0 != object); |
| 1460 | |
| 1461 | if(0 != object->indices) { |
| 1462 | FLAC__ASSERT(object->num_indices > 0); |
| 1463 | free(object->indices); |
| 1464 | } |
| 1465 | } |
| 1466 | |
| 1467 | FLAC_API void FLAC__metadata_object_cuesheet_track_delete(FLAC__StreamMetadata_CueSheet_Track *object) |
| 1468 | { |
| 1469 | FLAC__metadata_object_cuesheet_track_delete_data(object); |
| 1470 | free(object); |
| 1471 | } |
| 1472 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1473 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_resize_indices(FLAC__StreamMetadata *object, unsigned track_num, unsigned new_num_indices) |
| 1474 | { |
| 1475 | FLAC__StreamMetadata_CueSheet_Track *track; |
| 1476 | FLAC__ASSERT(0 != object); |
| 1477 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1478 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1479 | |
| 1480 | track = &object->data.cue_sheet.tracks[track_num]; |
| 1481 | |
| 1482 | if(0 == track->indices) { |
| 1483 | FLAC__ASSERT(track->num_indices == 0); |
| 1484 | if(0 == new_num_indices) |
| 1485 | return true; |
| 1486 | else if(0 == (track->indices = cuesheet_track_index_array_new_(new_num_indices))) |
| 1487 | return false; |
| 1488 | } |
| 1489 | else { |
Josh Coalson | 0f008d2 | 2007-09-11 04:49:56 +0000 | [diff] [blame] | 1490 | const size_t old_size = track->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index); |
| 1491 | const size_t new_size = new_num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index); |
| 1492 | |
| 1493 | /* overflow check */ |
Erik de Castro Lopo | 587e118 | 2012-02-17 17:52:12 +1100 | [diff] [blame] | 1494 | if(new_num_indices > UINT32_MAX / sizeof(FLAC__StreamMetadata_CueSheet_Index)) |
Josh Coalson | 0f008d2 | 2007-09-11 04:49:56 +0000 | [diff] [blame] | 1495 | return false; |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1496 | |
| 1497 | FLAC__ASSERT(track->num_indices > 0); |
| 1498 | |
| 1499 | if(new_size == 0) { |
| 1500 | free(track->indices); |
| 1501 | track->indices = 0; |
| 1502 | } |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 1503 | else if(0 == (track->indices = realloc(track->indices, new_size))) |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1504 | return false; |
| 1505 | |
| 1506 | /* if growing, zero all the lengths/pointers of new elements */ |
| 1507 | if(new_size > old_size) |
| 1508 | memset(track->indices + track->num_indices, 0, new_size - old_size); |
| 1509 | } |
| 1510 | |
| 1511 | track->num_indices = new_num_indices; |
| 1512 | |
| 1513 | cuesheet_calculate_length_(object); |
| 1514 | return true; |
| 1515 | } |
| 1516 | |
| 1517 | 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) |
| 1518 | { |
| 1519 | FLAC__StreamMetadata_CueSheet_Track *track; |
| 1520 | |
| 1521 | FLAC__ASSERT(0 != object); |
| 1522 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1523 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1524 | FLAC__ASSERT(index_num <= object->data.cue_sheet.tracks[track_num].num_indices); |
| 1525 | |
| 1526 | track = &object->data.cue_sheet.tracks[track_num]; |
| 1527 | |
| 1528 | if(!FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices+1)) |
| 1529 | return false; |
| 1530 | |
| 1531 | /* move all indices >= index_num forward one space */ |
| 1532 | memmove(&track->indices[index_num+1], &track->indices[index_num], sizeof(FLAC__StreamMetadata_CueSheet_Index)*(track->num_indices-1-index_num)); |
| 1533 | |
| 1534 | track->indices[index_num] = index; |
| 1535 | cuesheet_calculate_length_(object); |
| 1536 | return true; |
| 1537 | } |
| 1538 | |
Josh Coalson | 3b026e8 | 2002-11-21 06:41:01 +0000 | [diff] [blame] | 1539 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_blank_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num) |
| 1540 | { |
| 1541 | FLAC__StreamMetadata_CueSheet_Index index; |
| 1542 | memset(&index, 0, sizeof(index)); |
Josh Coalson | bfc8e31 | 2002-11-21 09:00:25 +0000 | [diff] [blame] | 1543 | 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] | 1544 | } |
| 1545 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1546 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_delete_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num) |
| 1547 | { |
| 1548 | FLAC__StreamMetadata_CueSheet_Track *track; |
| 1549 | |
| 1550 | FLAC__ASSERT(0 != object); |
| 1551 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1552 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1553 | FLAC__ASSERT(index_num < object->data.cue_sheet.tracks[track_num].num_indices); |
| 1554 | |
| 1555 | track = &object->data.cue_sheet.tracks[track_num]; |
| 1556 | |
| 1557 | /* move all indices > index_num backward one space */ |
Josh Coalson | 4fa9059 | 2002-12-04 07:01:37 +0000 | [diff] [blame] | 1558 | 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] | 1559 | |
| 1560 | FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices-1); |
| 1561 | cuesheet_calculate_length_(object); |
| 1562 | return true; |
| 1563 | } |
| 1564 | |
| 1565 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_resize_tracks(FLAC__StreamMetadata *object, unsigned new_num_tracks) |
| 1566 | { |
| 1567 | FLAC__ASSERT(0 != object); |
| 1568 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1569 | |
| 1570 | if(0 == object->data.cue_sheet.tracks) { |
| 1571 | FLAC__ASSERT(object->data.cue_sheet.num_tracks == 0); |
| 1572 | if(0 == new_num_tracks) |
| 1573 | return true; |
| 1574 | else if(0 == (object->data.cue_sheet.tracks = cuesheet_track_array_new_(new_num_tracks))) |
| 1575 | return false; |
| 1576 | } |
| 1577 | else { |
Josh Coalson | 0f008d2 | 2007-09-11 04:49:56 +0000 | [diff] [blame] | 1578 | const size_t old_size = object->data.cue_sheet.num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track); |
| 1579 | const size_t new_size = new_num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track); |
| 1580 | |
| 1581 | /* overflow check */ |
Erik de Castro Lopo | 587e118 | 2012-02-17 17:52:12 +1100 | [diff] [blame] | 1582 | if(new_num_tracks > UINT32_MAX / sizeof(FLAC__StreamMetadata_CueSheet_Track)) |
Josh Coalson | 0f008d2 | 2007-09-11 04:49:56 +0000 | [diff] [blame] | 1583 | return false; |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1584 | |
| 1585 | FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0); |
| 1586 | |
| 1587 | /* if shrinking, free the truncated entries */ |
| 1588 | if(new_num_tracks < object->data.cue_sheet.num_tracks) { |
| 1589 | unsigned i; |
| 1590 | for(i = new_num_tracks; i < object->data.cue_sheet.num_tracks; i++) |
| 1591 | if(0 != object->data.cue_sheet.tracks[i].indices) |
| 1592 | free(object->data.cue_sheet.tracks[i].indices); |
| 1593 | } |
| 1594 | |
| 1595 | if(new_size == 0) { |
| 1596 | free(object->data.cue_sheet.tracks); |
| 1597 | object->data.cue_sheet.tracks = 0; |
| 1598 | } |
Erik de Castro Lopo | 6c2040d | 2012-04-04 21:29:25 +1000 | [diff] [blame^] | 1599 | else if(0 == (object->data.cue_sheet.tracks = realloc(object->data.cue_sheet.tracks, new_size))) |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1600 | return false; |
| 1601 | |
| 1602 | /* if growing, zero all the lengths/pointers of new elements */ |
| 1603 | if(new_size > old_size) |
| 1604 | memset(object->data.cue_sheet.tracks + object->data.cue_sheet.num_tracks, 0, new_size - old_size); |
| 1605 | } |
| 1606 | |
| 1607 | object->data.cue_sheet.num_tracks = new_num_tracks; |
| 1608 | |
| 1609 | cuesheet_calculate_length_(object); |
| 1610 | return true; |
| 1611 | } |
| 1612 | |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 1613 | 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] | 1614 | { |
Josh Coalson | fb99386 | 2003-01-15 03:18:07 +0000 | [diff] [blame] | 1615 | FLAC__ASSERT(0 != object); |
| 1616 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1617 | |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 1618 | 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] | 1619 | } |
| 1620 | |
Josh Coalson | df7240a | 2002-11-16 06:32:30 +0000 | [diff] [blame] | 1621 | 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] | 1622 | { |
| 1623 | FLAC__StreamMetadata_CueSheet *cs; |
| 1624 | |
| 1625 | FLAC__ASSERT(0 != object); |
| 1626 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1627 | FLAC__ASSERT(track_num <= object->data.cue_sheet.num_tracks); |
| 1628 | |
| 1629 | cs = &object->data.cue_sheet; |
| 1630 | |
| 1631 | if(!FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks+1)) |
| 1632 | return false; |
| 1633 | |
| 1634 | /* move all tracks >= track_num forward one space */ |
| 1635 | memmove(&cs->tracks[track_num+1], &cs->tracks[track_num], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-1-track_num)); |
| 1636 | cs->tracks[track_num].num_indices = 0; |
| 1637 | cs->tracks[track_num].indices = 0; |
| 1638 | |
| 1639 | return FLAC__metadata_object_cuesheet_set_track(object, track_num, track, copy); |
| 1640 | } |
| 1641 | |
Josh Coalson | 3b026e8 | 2002-11-21 06:41:01 +0000 | [diff] [blame] | 1642 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_blank_track(FLAC__StreamMetadata *object, unsigned track_num) |
| 1643 | { |
| 1644 | FLAC__StreamMetadata_CueSheet_Track track; |
| 1645 | memset(&track, 0, sizeof(track)); |
| 1646 | return FLAC__metadata_object_cuesheet_insert_track(object, track_num, &track, /*copy=*/false); |
| 1647 | } |
| 1648 | |
Josh Coalson | 8e9c451 | 2002-11-14 05:00:24 +0000 | [diff] [blame] | 1649 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_delete_track(FLAC__StreamMetadata *object, unsigned track_num) |
| 1650 | { |
| 1651 | FLAC__StreamMetadata_CueSheet *cs; |
| 1652 | |
| 1653 | FLAC__ASSERT(0 != object); |
| 1654 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1655 | FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks); |
| 1656 | |
| 1657 | cs = &object->data.cue_sheet; |
| 1658 | |
| 1659 | /* free the track at track_num */ |
| 1660 | if(0 != cs->tracks[track_num].indices) |
| 1661 | free(cs->tracks[track_num].indices); |
| 1662 | |
| 1663 | /* move all tracks > track_num backward one space */ |
| 1664 | memmove(&cs->tracks[track_num], &cs->tracks[track_num+1], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-track_num-1)); |
| 1665 | cs->tracks[cs->num_tracks-1].num_indices = 0; |
| 1666 | cs->tracks[cs->num_tracks-1].indices = 0; |
| 1667 | |
| 1668 | return FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks-1); |
| 1669 | } |
| 1670 | |
| 1671 | FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_is_legal(const FLAC__StreamMetadata *object, FLAC__bool check_cd_da_subset, const char **violation) |
| 1672 | { |
| 1673 | FLAC__ASSERT(0 != object); |
| 1674 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1675 | |
| 1676 | return FLAC__format_cuesheet_is_legal(&object->data.cue_sheet, check_cd_da_subset, violation); |
| 1677 | } |
Josh Coalson | 7cfac0b | 2006-04-10 05:37:34 +0000 | [diff] [blame] | 1678 | |
| 1679 | static FLAC__uint64 get_index_01_offset_(const FLAC__StreamMetadata_CueSheet *cs, unsigned track) |
| 1680 | { |
| 1681 | if (track >= (cs->num_tracks-1) || cs->tracks[track].num_indices < 1) |
| 1682 | return 0; |
| 1683 | else if (cs->tracks[track].indices[0].number == 1) |
| 1684 | return cs->tracks[track].indices[0].offset + cs->tracks[track].offset + cs->lead_in; |
| 1685 | else if (cs->tracks[track].num_indices < 2) |
| 1686 | return 0; |
| 1687 | else if (cs->tracks[track].indices[1].number == 1) |
| 1688 | return cs->tracks[track].indices[1].offset + cs->tracks[track].offset + cs->lead_in; |
| 1689 | else |
| 1690 | return 0; |
| 1691 | } |
| 1692 | |
| 1693 | static FLAC__uint32 cddb_add_digits_(FLAC__uint32 x) |
| 1694 | { |
| 1695 | FLAC__uint32 n = 0; |
| 1696 | while (x) { |
| 1697 | n += (x%10); |
| 1698 | x /= 10; |
| 1699 | } |
| 1700 | return n; |
| 1701 | } |
| 1702 | |
Josh Coalson | 504dcaf | 2007-09-13 15:42:47 +0000 | [diff] [blame] | 1703 | /*@@@@add to tests*/ |
Josh Coalson | 7cfac0b | 2006-04-10 05:37:34 +0000 | [diff] [blame] | 1704 | FLAC_API FLAC__uint32 FLAC__metadata_object_cuesheet_calculate_cddb_id(const FLAC__StreamMetadata *object) |
| 1705 | { |
| 1706 | const FLAC__StreamMetadata_CueSheet *cs; |
| 1707 | |
| 1708 | FLAC__ASSERT(0 != object); |
| 1709 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET); |
| 1710 | |
| 1711 | cs = &object->data.cue_sheet; |
| 1712 | |
| 1713 | if (cs->num_tracks < 2) /* need at least one real track and the lead-out track */ |
| 1714 | return 0; |
| 1715 | |
| 1716 | { |
| 1717 | FLAC__uint32 i, length, sum = 0; |
| 1718 | for (i = 0; i < (cs->num_tracks-1); i++) /* -1 to avoid counting the lead-out */ |
| 1719 | sum += cddb_add_digits_((FLAC__uint32)(get_index_01_offset_(cs, i) / 44100)); |
| 1720 | length = (FLAC__uint32)((cs->tracks[cs->num_tracks-1].offset+cs->lead_in) / 44100) - (FLAC__uint32)(get_index_01_offset_(cs, 0) / 44100); |
| 1721 | |
| 1722 | return (sum % 0xFF) << 24 | length << 8 | (FLAC__uint32)(cs->num_tracks-1); |
| 1723 | } |
| 1724 | } |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 1725 | |
| 1726 | FLAC_API FLAC__bool FLAC__metadata_object_picture_set_mime_type(FLAC__StreamMetadata *object, char *mime_type, FLAC__bool copy) |
| 1727 | { |
| 1728 | char *old; |
| 1729 | size_t old_length, new_length; |
| 1730 | |
| 1731 | FLAC__ASSERT(0 != object); |
| 1732 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE); |
| 1733 | FLAC__ASSERT(0 != mime_type); |
| 1734 | |
| 1735 | old = object->data.picture.mime_type; |
| 1736 | old_length = old? strlen(old) : 0; |
| 1737 | new_length = strlen(mime_type); |
| 1738 | |
| 1739 | /* do the copy first so that if we fail we leave the object untouched */ |
| 1740 | if(copy) { |
Josh Coalson | 0f008d2 | 2007-09-11 04:49:56 +0000 | [diff] [blame] | 1741 | if(new_length >= SIZE_MAX) /* overflow check */ |
| 1742 | return false; |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 1743 | if(!copy_bytes_((FLAC__byte**)(&object->data.picture.mime_type), (FLAC__byte*)mime_type, new_length+1)) |
| 1744 | return false; |
| 1745 | } |
| 1746 | else { |
| 1747 | object->data.picture.mime_type = mime_type; |
| 1748 | } |
| 1749 | |
| 1750 | if(0 != old) |
| 1751 | free(old); |
| 1752 | |
| 1753 | object->length -= old_length; |
| 1754 | object->length += new_length; |
| 1755 | return true; |
| 1756 | } |
| 1757 | |
| 1758 | FLAC_API FLAC__bool FLAC__metadata_object_picture_set_description(FLAC__StreamMetadata *object, FLAC__byte *description, FLAC__bool copy) |
| 1759 | { |
| 1760 | FLAC__byte *old; |
| 1761 | size_t old_length, new_length; |
| 1762 | |
| 1763 | FLAC__ASSERT(0 != object); |
| 1764 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE); |
| 1765 | FLAC__ASSERT(0 != description); |
| 1766 | |
| 1767 | old = object->data.picture.description; |
| 1768 | old_length = old? strlen((const char *)old) : 0; |
| 1769 | new_length = strlen((const char *)description); |
| 1770 | |
| 1771 | /* do the copy first so that if we fail we leave the object untouched */ |
| 1772 | if(copy) { |
Josh Coalson | 0f008d2 | 2007-09-11 04:49:56 +0000 | [diff] [blame] | 1773 | if(new_length >= SIZE_MAX) /* overflow check */ |
| 1774 | return false; |
Josh Coalson | e343ab2 | 2006-09-23 19:21:19 +0000 | [diff] [blame] | 1775 | if(!copy_bytes_(&object->data.picture.description, description, new_length+1)) |
| 1776 | return false; |
| 1777 | } |
| 1778 | else { |
| 1779 | object->data.picture.description = description; |
| 1780 | } |
| 1781 | |
| 1782 | if(0 != old) |
| 1783 | free(old); |
| 1784 | |
| 1785 | object->length -= old_length; |
| 1786 | object->length += new_length; |
| 1787 | return true; |
| 1788 | } |
| 1789 | |
| 1790 | FLAC_API FLAC__bool FLAC__metadata_object_picture_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, FLAC__uint32 length, FLAC__bool copy) |
| 1791 | { |
| 1792 | FLAC__byte *old; |
| 1793 | |
| 1794 | FLAC__ASSERT(0 != object); |
| 1795 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE); |
| 1796 | FLAC__ASSERT((0 != data && length > 0) || (0 == data && length == 0 && copy == false)); |
| 1797 | |
| 1798 | old = object->data.picture.data; |
| 1799 | |
| 1800 | /* do the copy first so that if we fail we leave the object untouched */ |
| 1801 | if(copy) { |
| 1802 | if(!copy_bytes_(&object->data.picture.data, data, length)) |
| 1803 | return false; |
| 1804 | } |
| 1805 | else { |
| 1806 | object->data.picture.data = data; |
| 1807 | } |
| 1808 | |
| 1809 | if(0 != old) |
| 1810 | free(old); |
| 1811 | |
| 1812 | object->length -= object->data.picture.data_length; |
| 1813 | object->data.picture.data_length = length; |
| 1814 | object->length += length; |
| 1815 | return true; |
| 1816 | } |
| 1817 | |
| 1818 | FLAC_API FLAC__bool FLAC__metadata_object_picture_is_legal(const FLAC__StreamMetadata *object, const char **violation) |
| 1819 | { |
| 1820 | FLAC__ASSERT(0 != object); |
| 1821 | FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE); |
| 1822 | |
| 1823 | return FLAC__format_picture_is_legal(&object->data.picture, violation); |
| 1824 | } |