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/*****************************************************************
* gmerlin-avdecoder - a general purpose multimedia decoding library
*
* Copyright (c) 2001 - 2024 Members of the Gmerlin project
* http://github.com/bplaum
*
* 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 <stdio.h>
#include <qt.h>
/*
typedef struct
{
qt_atom_header_t h;
uint32_t num_entries;
struct
{
uint32_t count;
uint32_t duration;
} * entries;
} qt_stts_t;
*/
int bgav_qt_stts_read(qt_atom_header_t * h,
bgav_input_context_t * input, qt_stts_t * ret)
{
uint32_t i;
READ_VERSION_AND_FLAGS;
memcpy(&ret->h, h, sizeof(*h));
if(!bgav_input_read_32_be(input, &ret->num_entries))
return 0;
ret->entries = calloc(ret->num_entries, sizeof(*(ret->entries)));
for(i = 0; i < ret->num_entries; i++)
{
if(!bgav_input_read_32_be(input, &ret->entries[i].count) ||
!bgav_input_read_32_be(input, &ret->entries[i].duration))
return 0;
}
return 1;
}
void bgav_qt_stts_free(qt_stts_t * c)
{
if(c->entries)
free(c->entries);
}
void bgav_qt_stts_dump(int indent, qt_stts_t * c)
{
int i;
gavl_diprintf(indent, "%c%c%c%c\n",
(c->h.fourcc & 0xFF000000) >> 24,
(c->h.fourcc & 0x00FF0000) >> 16,
(c->h.fourcc & 0x0000FF00) >> 8,
(c->h.fourcc & 0x000000FF));
gavl_diprintf(indent+2, "num_entries: %d\n", c->num_entries);
for(i = 0; i < c->num_entries; i++)
{
gavl_diprintf(indent+2, "count: %d duration: %d\n",
c->entries[i].count, c->entries[i].duration);
}
gavl_diprintf(indent, "end of stts\n");
}
int64_t bgav_qt_stts_num_samples(qt_stts_t * c)
{
int i;
int64_t ret = 0;
for(i = 0; i < c->num_entries; i++)
ret += c->entries[i].count;
return ret;
}
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