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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 <avdec_private.h>
#include <qt.h>
#include <utils.h>
int bgav_qt_user_atoms_append(qt_atom_header_t * h,
bgav_input_context_t * ctx,
qt_user_atoms_t * ret)
{
ret->atoms = realloc(ret->atoms,
(ret->num + 1) * sizeof(*ret->atoms));
ret->atoms[ret->num] = malloc(h->size);
GAVL_32BE_2_PTR(h->size, ret->atoms[ret->num]);
GAVL_32BE_2_PTR(h->fourcc, ret->atoms[ret->num]+4);
if(bgav_input_read_data(ctx, ret->atoms[ret->num]+8,
h->size - 8) < h->size - 8)
return 0;
ret->num++;
return 1;
}
void bgav_qt_user_atoms_free(qt_user_atoms_t * a)
{
int i;
if(!a->atoms)
return;
for(i = 0; i < a->num; i++)
{
if(a->atoms[i])
free(a->atoms[i]);
}
free(a->atoms);
}
void bgav_qt_user_atoms_dump(int indent, qt_user_atoms_t * a)
{
int i;
int size;
uint32_t fourcc;
for(i = 0; i < a->num; i++)
{
size = GAVL_PTR_2_32BE(a->atoms[i]);
fourcc = BGAV_PTR_2_FOURCC(a->atoms[i]+4);
bgav_diprintf(indent, "User atom: ");
bgav_dump_fourcc(fourcc);
bgav_dprintf( " (size: %d)\n", size);
gavl_hexdump(a->atoms[i], size, 16);
}
}
uint8_t * bgav_user_atoms_find(qt_user_atoms_t * a, uint32_t fourcc,
int * len)
{
int i;
uint32_t fc;
for(i = 0; i < a->num; i++)
{
fc = BGAV_PTR_2_FOURCC(a->atoms[i]+4);
if(fc == fourcc)
{
*len = GAVL_PTR_2_32BE(a->atoms[i]);
return a->atoms[i];
}
}
return NULL;
}
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