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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_moov_read(qt_atom_header_t * h, bgav_input_context_t * input,
qt_moov_t * ret)
{
qt_atom_header_t ch; /* Child header */
memcpy(&ret->h, h, sizeof(*h));
while(input->position < h->start_position + h->size)
{
if(!bgav_qt_atom_read_header(input, &ch))
return 0;
switch(ch.fourcc)
{
case BGAV_MK_FOURCC('c', 'm', 'o', 'v'):
/* Compressed header */
return bgav_qt_cmov_read(&ch, input, ret);
break;
/* Reference movie */
case BGAV_MK_FOURCC('r', 'm', 'r', 'a'):
if(!bgav_qt_rmra_read(&ch, input, &ret->rmra))
return 0;
ret->has_rmra = 1;
break;
case BGAV_MK_FOURCC('t', 'r', 'a', 'k'):
ret->num_tracks++;
ret->tracks =
realloc(ret->tracks, sizeof(*(ret->tracks))*ret->num_tracks);
memset(&ret->tracks[ret->num_tracks-1], 0,
sizeof(*ret->tracks));
if(!bgav_qt_trak_read(&ch, input, &ret->tracks[ret->num_tracks-1]))
return 0;
// bgav_qt_trak_dump(&ret->tracks[ret->num_tracks-1]);
break;
case BGAV_MK_FOURCC('m', 'v', 'h', 'd'):
if(!bgav_qt_mvhd_read(&ch, input, &ret->mvhd))
return 0;
break;
case BGAV_MK_FOURCC('u', 'd', 't', 'a'):
if(!bgav_qt_udta_read(&ch, input, &ret->udta))
return 0;
ret->has_udta = 1;
break;
default:
bgav_qt_atom_skip_unknown(input, &ch, h->fourcc);
break;
}
}
return 1;
}
void bgav_qt_moov_free(qt_moov_t * c)
{
int i;
if(c->num_tracks)
{
for(i = 0; i < c->num_tracks; i++)
bgav_qt_trak_free(&c->tracks[i]);
free(c->tracks);
}
bgav_qt_mvhd_free(&c->mvhd);
bgav_qt_udta_free(&c->udta);
}
void bgav_qt_moov_dump(int indent, qt_moov_t * c)
{
int i;
bgav_diprintf(indent, "moov\n");
bgav_qt_mvhd_dump(indent+2, &c->mvhd);
if(c->has_udta)
bgav_qt_udta_dump(indent+2, &c->udta);
for(i = 0; i < c->num_tracks; i++)
bgav_qt_trak_dump(indent+2, &c->tracks[i]);
if(c->has_rmra)
bgav_qt_rmra_dump(indent+2, &c->rmra);
bgav_diprintf(indent, "end of moov\n");
}
int bgav_qt_is_chapter_track(qt_moov_t * moov, qt_trak_t * trak)
{
int i, j, k;
for(i = 0; i < moov->num_tracks; i++)
{
if(trak == &moov->tracks[i])
continue;
if(moov->tracks[i].has_tref)
{
for(j = 0; j < moov->tracks[i].tref.num_references; j++)
{
if(moov->tracks[i].tref.references[j].type ==
BGAV_MK_FOURCC('c','h','a','p'))
{
for(k = 0; k < moov->tracks[i].tref.references[j].num_tracks; k++)
{
if(moov->tracks[i].tref.references[j].tracks[k] == trak->tkhd.track_id)
return 1;
}
}
}
}
}
return 0;
}
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