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/*****************************************************************
* gmerlin-avdecoder - a general purpose multimedia decoding library
*
* Copyright (c) 2001 - 2012 Members of the Gmerlin project
* gmerlin-general@lists.sourceforge.net
* http://gmerlin.sourceforge.net
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* *****************************************************************/
#include <stdlib.h>
#include <string.h>
#include <avdec_private.h>
bgav_timecode_table_t *
bgav_timecode_table_create(int num)
{
bgav_timecode_table_t * ret;
ret = calloc(1, sizeof(*ret));
if(num)
{
ret->entries = calloc(num, sizeof(*ret->entries));
ret->num_entries = num;
ret->entries_alloc = num;
}
return ret;
}
void
bgav_timecode_table_append_entry(bgav_timecode_table_t * tt,
int64_t pts,
gavl_timecode_t timecode)
{
if(tt->num_entries +1 > tt->entries_alloc)
{
tt->entries_alloc += 128;
tt->entries = realloc(tt->entries,
tt->entries_alloc * sizeof(*tt->entries));
memset(tt->entries + tt->num_entries, 0,
(tt->entries_alloc - tt->num_entries) * sizeof(*tt->entries));
}
tt->entries[tt->num_entries].pts = pts;
tt->entries[tt->num_entries].timecode = timecode;
tt->num_entries++;
}
void
bgav_timecode_table_destroy(bgav_timecode_table_t * table)
{
if(table->entries)
free(table->entries);
free(table);
}
static int compare_func(const void * arg1_1, const void * arg2_1)
{
const bgav_timecode_table_entry_t * arg1;
const bgav_timecode_table_entry_t * arg2;
arg1 = arg1_1;
arg2 = arg2_1;
if(arg1->pts < arg2->pts)
return -1;
else if(arg1->pts == arg2->pts)
return 0;
else
return 1;
}
gavl_timecode_t
bgav_timecode_table_get_timecode(bgav_timecode_table_t * table,
int64_t pts)
{
bgav_timecode_table_entry_t se;
bgav_timecode_table_entry_t * e;
/* Do a binary search in the table */
se.pts = pts;
e =
(bgav_timecode_table_entry_t *)bsearch(&se, table->entries,
table->num_entries,
sizeof(*table->entries),
compare_func);
if(e)
return e->timecode;
else
return GAVL_TIMECODE_UNDEFINED;
}
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