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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 <avdec_private.h>
#include <qt.h>
/*
typedef struct
{
qt_atom_header_t h;
int version;
uint32_t flags;
uint32_t creation_time;
uint32_t modification_time;
uint32_t time_scale;
uint32_t duration;
float preferred_rate;
float preferred_volume;
char reserved[10];
float matrix[9];
uint32_t preview_time;
uint32_t preview_duration;
uint32_t poster_time;
uint32_t selection_time;
uint32_t selection_duration;
uint32_t current_time;
uint32_t next_track_id;
} qt_mvhd_t;
*/
int bgav_qt_mvhd_read(qt_atom_header_t * h, bgav_input_context_t * input,
qt_mvhd_t * ret)
{
int i;
uint32_t i_tmp;
READ_VERSION_AND_FLAGS;
memcpy(&ret->h, h, sizeof(*h));
if(version == 0)
{
if(!bgav_input_read_32_be(input, &i_tmp))
return 0;
ret->creation_time = i_tmp;
if(!bgav_input_read_32_be(input, &i_tmp))
return 0;
ret->modification_time = i_tmp;
if(!bgav_input_read_32_be(input, &ret->time_scale))
return 0;
if(!bgav_input_read_32_be(input, &i_tmp))
return 0;
ret->duration = i_tmp;
}
else if(version == 1)
{
if(!bgav_input_read_64_be(input, &ret->creation_time) ||
!bgav_input_read_64_be(input, &ret->modification_time) ||
!bgav_input_read_32_be(input, &ret->time_scale) ||
!bgav_input_read_64_be(input, &ret->duration))
return 0;
}
if(!bgav_qt_read_fixed32(input, &ret->preferred_rate) ||
!bgav_qt_read_fixed16(input, &ret->preferred_volume) ||
!(bgav_input_read_data(input, ret->reserved, 10) == 10))
return 0;
for(i = 0; i < 9; i++)
if(!bgav_qt_read_fixed32(input, &ret->matrix[i]))
return 0;
return(bgav_input_read_32_be(input, &ret->preview_time) &&
bgav_input_read_32_be(input, &ret->preview_duration) &&
bgav_input_read_32_be(input, &ret->poster_time) &&
bgav_input_read_32_be(input, &ret->selection_time) &&
bgav_input_read_32_be(input, &ret->selection_duration) &&
bgav_input_read_32_be(input, &ret->current_time) &&
bgav_input_read_32_be(input, &ret->next_track_id));
}
void bgav_qt_mvhd_free(qt_mvhd_t * c)
{
}
/*
int version;
uint32_t flags;
uint64_t creation_time;
uint64_t modification_time;
uint32_t time_scale;
uint64_t duration;
float preferred_rate;
float preferred_volume;
uint8_t reserved[10];
float matrix[9];
uint32_t preview_time;
uint32_t preview_duration;
uint32_t poster_time;
uint32_t selection_time;
uint32_t selection_duration;
uint32_t current_time;
uint32_t next_track_id;
*/
void bgav_qt_mvhd_dump(int indent, qt_mvhd_t * c)
{
int i, j;
bgav_diprintf(indent, "mvhd\n");
bgav_diprintf(indent+2, "version: %d\n", c->version);
bgav_diprintf(indent+2, "flags: %08x\n", c->flags);
bgav_diprintf(indent+2, "creation_time: %" PRId64 "\n", c->creation_time);
bgav_diprintf(indent+2, "modification_time: %" PRId64 "\n", c->modification_time);
bgav_diprintf(indent+2, "time_scale: %d\n", c->time_scale);
bgav_diprintf(indent+2, "duration: %" PRId64 "\n", c->duration);
bgav_diprintf(indent+2, "preferred_rate: %f\n", c->preferred_rate);
bgav_diprintf(indent+2, "preferred_volume: %f\n", c->preferred_volume);
bgav_diprintf(indent+2, "reserved: ");
gavl_hexdump(c->reserved, 10, 10);
bgav_dprintf("\n");
bgav_diprintf(indent+2, "Matrix:\n");
for(i = 0; i < 3; i++)
{
bgav_diprintf(indent, " ");
for(j = 0; j < 3; j++)
bgav_dprintf( "%f ", c->matrix[3*i+j]);
bgav_dprintf( "\n");
}
bgav_diprintf(indent+2, "preview_time: %d\n", c->preview_time);
bgav_diprintf(indent+2, "preview_duration: %d\n", c->preview_duration);
bgav_diprintf(indent+2, "selection_time: %d\n", c->selection_time);
bgav_diprintf(indent+2, "selection_duration: %d\n", c->selection_duration);
bgav_diprintf(indent+2, "current_time: %d\n", c->current_time);
bgav_diprintf(indent+2, "next_track_id: %d\n", c->next_track_id);
bgav_diprintf(indent, "end of mvhd\n");
}
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