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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 <string.h>
#include <stdlib.h>
#include <avdec_private.h>
#include <qt.h>
int bgav_qt_tref_read(qt_atom_header_t * h,
bgav_input_context_t * input, qt_tref_t * ret)
{
int i;
uint32_t size;
while(input->position < h->start_position + h->size)
{
ret->references = realloc(ret->references,
(ret->num_references+1) * sizeof(*ret->references));
if(!bgav_input_read_32_be(input, &size) ||
!bgav_input_read_fourcc(input, &ret->references[ret->num_references].type))
return 0;
ret->references[ret->num_references].num_tracks = (size - 8)/4;
ret->references[ret->num_references].tracks =
malloc(ret->references[ret->num_references].num_tracks *
sizeof(*ret->references[ret->num_references].tracks));
for(i = 0; i < ret->references[ret->num_references].num_tracks; i++)
{
if(!bgav_input_read_32_be(input, &ret->references[ret->num_references].tracks[i]))
return 0;
}
ret->num_references++;
}
return 1;
}
void bgav_qt_tref_free(qt_tref_t * r)
{
int i;
for(i = 0; i < r->num_references; i++)
{
if(r->references[i].tracks)
free(r->references[i].tracks);
}
free(r->references);
}
void bgav_qt_tref_dump(int indent, qt_tref_t * c)
{
int i, j;
bgav_diprintf(indent, "tref\n");
for(i = 0; i < c->num_references; i++)
{
bgav_diprintf(indent+2, "track reference: ");
bgav_dump_fourcc(c->references[i].type);
bgav_dprintf(" (%d tracks)\n", c->references[i].num_tracks);
for(j = 0; j < c->references[i].num_tracks; j++)
bgav_diprintf(indent+2, "Track %d\n", c->references[i].tracks[j]);
}
bgav_diprintf(indent, "end of tref\n");
}
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