1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836
|
/* GStreamer
* (c) 2010, 2012 Alexander Saprykin <xelfium@gmail.com>
*
* gsttoc.c: GstToc initialization and parsing/creation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:gsttoc
* @short_description: Generic table of contents support
* @see_also: #GstStructure, #GstEvent, #GstMessage, #GstQuery
*
* #GstToc functions are used to create/free #GstToc and #GstTocEntry structures.
* Also they are used to convert #GstToc into #GstStructure and vice versa.
*
* #GstToc lets you to inform other elements in pipeline or application that playing
* source has some kind of table of contents (TOC). These may be chapters, editions,
* angles or other types. For example: DVD chapters, Matroska chapters or cue sheet
* TOC. Such TOC will be useful for applications to display instead of just a
* playlist.
*
* Using TOC is very easy. Firstly, create #GstToc structure which represents root
* contents of the source. You can also attach TOC-specific tags to it. Then fill
* it with #GstTocEntry entries by appending them to the #GstToc using
* gst_toc_append_entry(), and appending subentries to a #GstTocEntry using
* gst_toc_entry_append_sub_entry().
*
* Note that root level of the TOC can contain only either editions or chapters. You
* should not mix them together at the same level. Otherwise you will get serialization
* /deserialization errors. Make sure that no one of the entries has negative start and
* stop values.
*
* Use gst_event_new_toc() to create a new TOC #GstEvent, and gst_event_parse_toc() to
* parse received TOC event. Use gst_event_new_toc_select() to create a new TOC select #GstEvent,
* and gst_event_parse_toc_select() to parse received TOC select event. The same rule for
* the #GstMessage: gst_message_new_toc() to create new TOC #GstMessage, and
* gst_message_parse_toc() to parse received TOC message.
*
* TOCs can have global scope or current scope. Global scope TOCs contain
* all entries that can possibly be selected using a toc select event, and
* are what an application is usually interested in. TOCs with current scope
* only contain the parts of the TOC relevant to the currently selected/playing
* stream; the current scope TOC is used by downstream elements such as muxers
* to write correct TOC entries when transcoding files, for example. When
* playing a DVD, the global TOC would contain a hierarchy of all titles,
* chapters and angles, for example, while the current TOC would only contain
* the chapters for the currently playing title if playback of a specific
* title was requested.
*
* Applications and plugins should not rely on TOCs having a certain kind of
* structure, but should allow for different alternatives. For example, a
* simple CUE sheet embedded in a file may be presented as a flat list of
* track entries, or could have a top-level edition node (or some other
* alternative type entry) with track entries underneath that node; or even
* multiple top-level edition nodes (or some other alternative type entries)
* each with track entries underneath, in case the source file has extracted
* a track listing from different sources).
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "gst_private.h"
#include "gstenumtypes.h"
#include "gsttaglist.h"
#include "gststructure.h"
#include "gstvalue.h"
#include "gsttoc.h"
#include "gstpad.h"
#include "gstquark.h"
struct _GstTocEntry
{
GstMiniObject mini_object;
GstToc *toc;
GstTocEntry *parent;
gchar *uid;
GstTocEntryType type;
GstClockTime start, stop;
GList *subentries;
GstTagList *tags;
GstTocLoopType loop_type;
gint repeat_count;
};
struct _GstToc
{
GstMiniObject mini_object;
GstTocScope scope;
GList *entries;
GstTagList *tags;
};
#undef gst_toc_copy
static GstToc *gst_toc_copy (const GstToc * toc);
static void gst_toc_free (GstToc * toc);
#undef gst_toc_entry_copy
static GstTocEntry *gst_toc_entry_copy (const GstTocEntry * toc);
static void gst_toc_entry_free (GstTocEntry * toc);
GType _gst_toc_type = 0;
GType _gst_toc_entry_type = 0;
GST_DEFINE_MINI_OBJECT_TYPE (GstToc, gst_toc);
GST_DEFINE_MINI_OBJECT_TYPE (GstTocEntry, gst_toc_entry);
/**
* gst_toc_new:
* @scope: scope of this TOC
*
* Create a new #GstToc structure.
*
* Returns: (transfer full): newly allocated #GstToc structure, free it
* with gst_toc_unref().
*/
GstToc *
gst_toc_new (GstTocScope scope)
{
GstToc *toc;
g_return_val_if_fail (scope == GST_TOC_SCOPE_GLOBAL ||
scope == GST_TOC_SCOPE_CURRENT, NULL);
toc = g_slice_new0 (GstToc);
gst_mini_object_init (GST_MINI_OBJECT_CAST (toc), 0, GST_TYPE_TOC,
(GstMiniObjectCopyFunction) gst_toc_copy, NULL,
(GstMiniObjectFreeFunction) gst_toc_free);
toc->scope = scope;
toc->tags = gst_tag_list_new_empty ();
return toc;
}
/**
* gst_toc_get_scope:
* @toc: a #GstToc instance
*
* Returns: scope of @toc
*/
GstTocScope
gst_toc_get_scope (const GstToc * toc)
{
g_return_val_if_fail (toc != NULL, GST_TOC_SCOPE_GLOBAL);
return toc->scope;
}
/**
* gst_toc_set_tags:
* @toc: A #GstToc instance
* @tags: (allow-none) (transfer full): A #GstTagList or %NULL
*
* Set a #GstTagList with tags for the complete @toc.
*/
void
gst_toc_set_tags (GstToc * toc, GstTagList * tags)
{
g_return_if_fail (toc != NULL);
g_return_if_fail (gst_mini_object_is_writable (GST_MINI_OBJECT_CAST (toc)));
if (toc->tags)
gst_tag_list_unref (toc->tags);
toc->tags = tags;
}
/**
* gst_toc_merge_tags:
* @toc: A #GstToc instance
* @tags: (allow-none): A #GstTagList or %NULL
* @mode: A #GstTagMergeMode
*
* Merge @tags into the existing tags of @toc using @mode.
*/
void
gst_toc_merge_tags (GstToc * toc, GstTagList * tags, GstTagMergeMode mode)
{
g_return_if_fail (toc != NULL);
g_return_if_fail (gst_mini_object_is_writable (GST_MINI_OBJECT_CAST (toc)));
if (!toc->tags) {
toc->tags = gst_tag_list_ref (tags);
} else {
GstTagList *tmp = gst_tag_list_merge (toc->tags, tags, mode);
gst_tag_list_unref (toc->tags);
toc->tags = tmp;
}
}
/**
* gst_toc_get_tags:
* @toc: A #GstToc instance
*
* Gets the tags for @toc.
*
* Returns: (transfer none): A #GstTagList for @entry
*/
GstTagList *
gst_toc_get_tags (const GstToc * toc)
{
g_return_val_if_fail (toc != NULL, NULL);
return toc->tags;
}
/**
* gst_toc_append_entry:
* @toc: A #GstToc instance
* @entry: (transfer full): A #GstTocEntry
*
* Appends the #GstTocEntry @entry to @toc.
*/
void
gst_toc_append_entry (GstToc * toc, GstTocEntry * entry)
{
g_return_if_fail (toc != NULL);
g_return_if_fail (gst_mini_object_is_writable (GST_MINI_OBJECT_CAST (toc)));
g_return_if_fail (gst_mini_object_is_writable (GST_MINI_OBJECT_CAST (entry)));
g_return_if_fail (entry->toc == NULL);
g_return_if_fail (entry->parent == NULL);
toc->entries = g_list_append (toc->entries, entry);
entry->toc = toc;
GST_LOG ("appended %s entry with uid %s to toc %p",
gst_toc_entry_type_get_nick (entry->type), entry->uid, toc);
gst_toc_dump (toc);
}
/**
* gst_toc_get_entries:
* @toc: A #GstToc instance
*
* Gets the list of #GstTocEntry of @toc.
*
* Returns: (transfer none) (element-type Gst.TocEntry): A #GList of #GstTocEntry for @entry
*/
GList *
gst_toc_get_entries (const GstToc * toc)
{
g_return_val_if_fail (toc != NULL, NULL);
return toc->entries;
}
static GstTocEntry *
gst_toc_entry_new_internal (GstTocEntryType type, const gchar * uid)
{
GstTocEntry *entry;
entry = g_slice_new0 (GstTocEntry);
gst_mini_object_init (GST_MINI_OBJECT_CAST (entry), 0, GST_TYPE_TOC_ENTRY,
(GstMiniObjectCopyFunction) gst_toc_entry_copy, NULL,
(GstMiniObjectFreeFunction) gst_toc_entry_free);
entry->uid = g_strdup (uid);
entry->type = type;
entry->tags = NULL;
entry->start = entry->stop = GST_CLOCK_TIME_NONE;
return entry;
}
/**
* gst_toc_entry_new:
* @type: entry type.
* @uid: unique ID (UID) in the whole TOC.
*
* Create new #GstTocEntry structure.
*
* Returns: newly allocated #GstTocEntry structure, free it with gst_toc_entry_unref().
*/
GstTocEntry *
gst_toc_entry_new (GstTocEntryType type, const gchar * uid)
{
g_return_val_if_fail (uid != NULL, NULL);
return gst_toc_entry_new_internal (type, uid);
}
static void
gst_toc_free (GstToc * toc)
{
g_list_foreach (toc->entries, (GFunc) gst_mini_object_unref, NULL);
g_list_free (toc->entries);
if (toc->tags != NULL)
gst_tag_list_unref (toc->tags);
g_slice_free (GstToc, toc);
}
static void
gst_toc_entry_free (GstTocEntry * entry)
{
g_return_if_fail (entry != NULL);
g_list_foreach (entry->subentries, (GFunc) gst_mini_object_unref, NULL);
g_list_free (entry->subentries);
g_free (entry->uid);
if (entry->tags != NULL)
gst_tag_list_unref (entry->tags);
g_slice_free (GstTocEntry, entry);
}
static GstTocEntry *
gst_toc_entry_find_sub_entry (const GstTocEntry * entry, const gchar * uid)
{
GList *cur;
GstTocEntry *subentry, *subsubentry;
g_return_val_if_fail (entry != NULL, NULL);
g_return_val_if_fail (uid != NULL, NULL);
cur = entry->subentries;
while (cur != NULL) {
subentry = cur->data;
if (g_strcmp0 (subentry->uid, uid) == 0)
return subentry;
subsubentry = gst_toc_entry_find_sub_entry (subentry, uid);
if (subsubentry != NULL)
return subsubentry;
cur = cur->next;
}
return NULL;
}
/**
* gst_toc_find_entry:
* @toc: #GstToc to search in.
* @uid: UID to find #GstTocEntry with.
*
* Find #GstTocEntry with given @uid in the @toc.
*
* Returns: (transfer none) (nullable): #GstTocEntry with specified
* @uid from the @toc, or %NULL if not found.
*/
GstTocEntry *
gst_toc_find_entry (const GstToc * toc, const gchar * uid)
{
GList *cur;
GstTocEntry *entry, *subentry;
g_return_val_if_fail (toc != NULL, NULL);
g_return_val_if_fail (uid != NULL, NULL);
cur = toc->entries;
while (cur != NULL) {
entry = cur->data;
if (g_strcmp0 (entry->uid, uid) == 0)
return entry;
subentry = gst_toc_entry_find_sub_entry (entry, uid);
if (subentry != NULL)
return subentry;
cur = cur->next;
}
return NULL;
}
/**
* gst_toc_entry_copy:
* @entry: #GstTocEntry to copy.
*
* Copy #GstTocEntry with all subentries (deep copy).
*
* Returns: (nullable): newly allocated #GstTocEntry in case of
* success, %NULL otherwise; free it when done with
* gst_toc_entry_unref().
*/
static GstTocEntry *
gst_toc_entry_copy (const GstTocEntry * entry)
{
GstTocEntry *ret, *sub;
GstTagList *list;
GList *cur;
g_return_val_if_fail (entry != NULL, NULL);
ret = gst_toc_entry_new (entry->type, entry->uid);
ret->start = entry->start;
ret->stop = entry->stop;
if (GST_IS_TAG_LIST (entry->tags)) {
list = gst_tag_list_copy (entry->tags);
if (ret->tags)
gst_tag_list_unref (ret->tags);
ret->tags = list;
}
cur = entry->subentries;
while (cur != NULL) {
sub = gst_toc_entry_copy (cur->data);
if (sub != NULL)
ret->subentries = g_list_prepend (ret->subentries, sub);
cur = cur->next;
}
ret->subentries = g_list_reverse (ret->subentries);
return ret;
}
/**
* gst_toc_copy:
* @toc: #GstToc to copy.
*
* Copy #GstToc with all subentries (deep copy).
*
* Returns: (nullable): newly allocated #GstToc in case of success,
* %NULL otherwise; free it when done with gst_toc_unref().
*/
static GstToc *
gst_toc_copy (const GstToc * toc)
{
GstToc *ret;
GstTocEntry *entry;
GList *cur;
GstTagList *list;
g_return_val_if_fail (toc != NULL, NULL);
ret = gst_toc_new (toc->scope);
if (GST_IS_TAG_LIST (toc->tags)) {
list = gst_tag_list_copy (toc->tags);
gst_tag_list_unref (ret->tags);
ret->tags = list;
}
cur = toc->entries;
while (cur != NULL) {
entry = gst_toc_entry_copy (cur->data);
if (entry != NULL)
ret->entries = g_list_prepend (ret->entries, entry);
cur = cur->next;
}
ret->entries = g_list_reverse (ret->entries);
return ret;
}
/**
* gst_toc_entry_set_start_stop_times:
* @entry: #GstTocEntry to set values.
* @start: start value to set.
* @stop: stop value to set.
*
* Set @start and @stop values for the @entry.
*/
void
gst_toc_entry_set_start_stop_times (GstTocEntry * entry, gint64 start,
gint64 stop)
{
g_return_if_fail (entry != NULL);
entry->start = start;
entry->stop = stop;
}
/**
* gst_toc_entry_get_start_stop_times:
* @entry: #GstTocEntry to get values from.
* @start: (out) (allow-none): the storage for the start value, leave
* %NULL if not need.
* @stop: (out) (allow-none): the storage for the stop value, leave
* %NULL if not need.
*
* Get @start and @stop values from the @entry and write them into appropriate
* storages.
*
* Returns: %TRUE if all non-%NULL storage pointers were filled with appropriate
* values, %FALSE otherwise.
*/
gboolean
gst_toc_entry_get_start_stop_times (const GstTocEntry * entry, gint64 * start,
gint64 * stop)
{
g_return_val_if_fail (entry != NULL, FALSE);
if (start != NULL)
*start = entry->start;
if (stop != NULL)
*stop = entry->stop;
return TRUE;
}
/**
* gst_toc_entry_set_loop:
* @entry: #GstTocEntry to set values.
* @loop_type: loop_type value to set.
* @repeat_count: repeat_count value to set.
*
* Set @loop_type and @repeat_count values for the @entry.
*
* Since: 1.4
*/
void
gst_toc_entry_set_loop (GstTocEntry * entry, GstTocLoopType loop_type,
gint repeat_count)
{
g_return_if_fail (entry != NULL);
entry->loop_type = loop_type;
entry->repeat_count = repeat_count;
}
/**
* gst_toc_entry_get_loop:
* @entry: #GstTocEntry to get values from.
* @loop_type: (out) (allow-none): the storage for the loop_type
* value, leave %NULL if not need.
* @repeat_count: (out) (allow-none): the storage for the repeat_count
* value, leave %NULL if not need.
*
* Get @loop_type and @repeat_count values from the @entry and write them into
* appropriate storages. Loops are e.g. used by sampled instruments. GStreamer
* is not automatically applying the loop. The application can process this
* meta data and use it e.g. to send a seek-event to loop a section.
*
* Returns: %TRUE if all non-%NULL storage pointers were filled with appropriate
* values, %FALSE otherwise.
*
* Since: 1.4
*/
gboolean
gst_toc_entry_get_loop (const GstTocEntry * entry, GstTocLoopType * loop_type,
gint * repeat_count)
{
g_return_val_if_fail (entry != NULL, FALSE);
if (loop_type != NULL)
*loop_type = entry->loop_type;
if (repeat_count != NULL)
*repeat_count = entry->repeat_count;
return TRUE;
}
/**
* gst_toc_entry_type_get_nick:
* @type: a #GstTocEntryType.
*
* Converts @type to a string representation.
*
* Returns: Returns a human-readable string for @type. This string is
* only for debugging purpose and should not be displayed in a user
* interface.
*/
const gchar *
gst_toc_entry_type_get_nick (GstTocEntryType type)
{
switch (type) {
case GST_TOC_ENTRY_TYPE_ANGLE:
return "angle";
case GST_TOC_ENTRY_TYPE_VERSION:
return "version";
case GST_TOC_ENTRY_TYPE_EDITION:
return "edition";
case GST_TOC_ENTRY_TYPE_TITLE:
return "title";
case GST_TOC_ENTRY_TYPE_TRACK:
return "track";
case GST_TOC_ENTRY_TYPE_CHAPTER:
return "chapter";
default:
break;
}
return "invalid";
}
/**
* gst_toc_entry_get_entry_type:
* @entry: a #GstTocEntry
*
* Returns: @entry's entry type
*/
GstTocEntryType
gst_toc_entry_get_entry_type (const GstTocEntry * entry)
{
g_return_val_if_fail (entry != NULL, GST_TOC_ENTRY_TYPE_INVALID);
return entry->type;
}
/**
* gst_toc_entry_is_alternative:
* @entry: a #GstTocEntry
*
* Returns: %TRUE if @entry's type is an alternative type, otherwise %FALSE
*/
gboolean
gst_toc_entry_is_alternative (const GstTocEntry * entry)
{
g_return_val_if_fail (entry != NULL, FALSE);
return GST_TOC_ENTRY_TYPE_IS_ALTERNATIVE (entry->type);
}
/**
* gst_toc_entry_is_sequence:
* @entry: a #GstTocEntry
*
* Returns: %TRUE if @entry's type is a sequence type, otherwise %FALSE
*/
gboolean
gst_toc_entry_is_sequence (const GstTocEntry * entry)
{
g_return_val_if_fail (entry != NULL, FALSE);
return GST_TOC_ENTRY_TYPE_IS_SEQUENCE (entry->type);
}
/**
* gst_toc_entry_get_uid:
* @entry: A #GstTocEntry instance
*
* Gets the UID of @entry.
*
* Returns: (transfer none): The UID of @entry
*/
const gchar *
gst_toc_entry_get_uid (const GstTocEntry * entry)
{
g_return_val_if_fail (entry != NULL, NULL);
return entry->uid;
}
/**
* gst_toc_entry_append_sub_entry:
* @entry: A #GstTocEntry instance
* @subentry: (transfer full): A #GstTocEntry
*
* Appends the #GstTocEntry @subentry to @entry.
*/
void
gst_toc_entry_append_sub_entry (GstTocEntry * entry, GstTocEntry * subentry)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (subentry != NULL);
g_return_if_fail (gst_mini_object_is_writable (GST_MINI_OBJECT_CAST (entry)));
g_return_if_fail (gst_mini_object_is_writable (GST_MINI_OBJECT_CAST
(subentry)));
g_return_if_fail (subentry->toc == NULL);
g_return_if_fail (subentry->parent == NULL);
entry->subentries = g_list_append (entry->subentries, subentry);
subentry->toc = entry->toc;
subentry->parent = entry;
GST_LOG ("appended %s subentry with uid %s to entry %s",
gst_toc_entry_type_get_nick (subentry->type), subentry->uid, entry->uid);
}
/**
* gst_toc_entry_get_sub_entries:
* @entry: A #GstTocEntry instance
*
* Gets the sub-entries of @entry.
*
* Returns: (transfer none) (element-type Gst.TocEntry): A #GList of #GstTocEntry of @entry
*/
GList *
gst_toc_entry_get_sub_entries (const GstTocEntry * entry)
{
g_return_val_if_fail (entry != NULL, NULL);
return entry->subentries;
}
/**
* gst_toc_entry_set_tags:
* @entry: A #GstTocEntry instance
* @tags: (allow-none) (transfer full): A #GstTagList or %NULL
*
* Set a #GstTagList with tags for the complete @entry.
*/
void
gst_toc_entry_set_tags (GstTocEntry * entry, GstTagList * tags)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (gst_mini_object_is_writable (GST_MINI_OBJECT_CAST (entry)));
if (entry->tags)
gst_tag_list_unref (entry->tags);
entry->tags = tags;
}
/**
* gst_toc_entry_merge_tags:
* @entry: A #GstTocEntry instance
* @tags: (allow-none): A #GstTagList or %NULL
* @mode: A #GstTagMergeMode
*
* Merge @tags into the existing tags of @entry using @mode.
*/
void
gst_toc_entry_merge_tags (GstTocEntry * entry, GstTagList * tags,
GstTagMergeMode mode)
{
g_return_if_fail (entry != NULL);
g_return_if_fail (gst_mini_object_is_writable (GST_MINI_OBJECT_CAST (entry)));
if (!entry->tags) {
entry->tags = gst_tag_list_ref (tags);
} else {
GstTagList *tmp = gst_tag_list_merge (entry->tags, tags, mode);
gst_tag_list_unref (entry->tags);
entry->tags = tmp;
}
}
/**
* gst_toc_entry_get_tags:
* @entry: A #GstTocEntry instance
*
* Gets the tags for @entry.
*
* Returns: (transfer none): A #GstTagList for @entry
*/
GstTagList *
gst_toc_entry_get_tags (const GstTocEntry * entry)
{
g_return_val_if_fail (entry != NULL, NULL);
return entry->tags;
}
/**
* gst_toc_entry_get_toc:
* @entry: A #GstTocEntry instance
*
* Gets the parent #GstToc of @entry.
*
* Returns: (transfer none): The parent #GstToc of @entry
*/
GstToc *
gst_toc_entry_get_toc (GstTocEntry * entry)
{
g_return_val_if_fail (entry != NULL, NULL);
return entry->toc;
}
/**
* gst_toc_entry_get_parent:
* @entry: A #GstTocEntry instance
*
* Gets the parent #GstTocEntry of @entry.
*
* Returns: (transfer none): The parent #GstTocEntry of @entry
*/
GstTocEntry *
gst_toc_entry_get_parent (GstTocEntry * entry)
{
g_return_val_if_fail (entry != NULL, NULL);
return entry->parent;
}
#ifndef GST_DISABLE_GST_DEBUG
static void
gst_toc_dump_entries (GList * entries, guint depth)
{
GList *e;
gchar *indent;
indent = g_malloc0 (depth + 1);
memset (indent, ' ', depth);
for (e = entries; e != NULL; e = e->next) {
GstTocEntry *entry = e->data;
GST_TRACE ("%s+ %s (%s), %" GST_TIME_FORMAT " - %" GST_TIME_FORMAT ", "
"tags: %" GST_PTR_FORMAT, indent, entry->uid,
gst_toc_entry_type_get_nick (entry->type),
GST_TIME_ARGS (entry->start), GST_TIME_ARGS (entry->stop), entry->tags);
if (entry->subentries != NULL)
gst_toc_dump_entries (entry->subentries, depth + 2);
}
g_free (indent);
}
#endif
void
gst_toc_dump (GstToc * toc)
{
#ifndef GST_DISABLE_GST_DEBUG
GST_TRACE (" Toc %p, scope: %s, tags: %" GST_PTR_FORMAT, toc,
(toc->scope == GST_TOC_SCOPE_GLOBAL) ? "global" : "current", toc->tags);
gst_toc_dump_entries (toc->entries, 2);
#endif
}
void
_priv_gst_toc_initialize (void)
{
_gst_toc_type = gst_toc_get_type ();
_gst_toc_entry_type = gst_toc_entry_get_type ();
}
|