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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 <stdio.h>
#include <string.h>
#include <qt.h>
#define LOG_DOMAIN "qt_mdhd"
/*
typedef struct
{
qt_atom_header_t h;
uint32_t creation_time;
uint32_t modification_time;
uint32_t time_scale;
uint32_t duration;
uint16_t language;
uint16_t quality;
} qt_mdhd_t;
*/
int bgav_qt_mdhd_get_language(qt_mdhd_t * m, char * ret)
{
if(!bgav_qt_get_language(m->language, ret))
{
ret[0] = ((m->language >> 10) & 0x1f) + 0x60;
ret[1] = ((m->language >> 5) & 0x1f) + 0x60;
ret[2] = (m->language & 0x1f) + 0x60;
ret[3] = '\0';
}
bgav_correct_language(ret);
return 1;
}
void bgav_qt_mdhd_dump(int indent, qt_mdhd_t * m)
{
char lang_code[4];
const char * language;
const char * charset = NULL;
memset(lang_code, 0, 4);
bgav_qt_mdhd_get_language(m, lang_code);
language = bgav_lang_name(lang_code);
charset = bgav_qt_get_charset(m->language);
if(!charset)
charset = "UTF-8/16";
bgav_diprintf(indent, "mdhd:\n");
bgav_diprintf(indent+2, "version: %d\n", m->version);
bgav_diprintf(indent+2, "flags: %06xd\n", m->flags);
bgav_diprintf(indent+2, "creation_time: %"PRId64"\n", m->creation_time);
bgav_diprintf(indent+2, "modification_time: %"PRId64"\n", m->modification_time);
bgav_diprintf(indent+2, "time_scale: %d\n", m->time_scale);
bgav_diprintf(indent+2, "duration: %"PRId64"\n", m->duration);
bgav_diprintf(indent+2, "language: %d (%s, charset: %s)\n",
m->language, language, charset);
bgav_diprintf(indent+2, "quality: %d\n", m->quality);
bgav_diprintf(indent, "end of mdhd\n");
}
int bgav_qt_mdhd_read(qt_atom_header_t * h, bgav_input_context_t * input,
qt_mdhd_t * ret)
{
// int result;
READ_VERSION_AND_FLAGS;
memcpy(&ret->h, h, sizeof(*h));
if(ret->version == 0)
{
uint32_t dummy1, dummy2;
if(!bgav_input_read_32_be(input, &dummy1) ||
!bgav_input_read_32_be(input, &dummy2))
return 0;
ret->creation_time = dummy1;
ret->modification_time = dummy2;
}
else if(ret->version == 1)
{
if(!bgav_input_read_64_be(input, &ret->creation_time) ||
!bgav_input_read_64_be(input, &ret->modification_time))
return 0;
}
else
{
gavl_log(GAVL_LOG_ERROR, LOG_DOMAIN,
"Unsupported version %d in mdhd",
ret->version);
return 0;
}
if(!bgav_input_read_32_be(input, &ret->time_scale))
return 0;
if(ret->version == 0)
{
uint32_t dummy;
if(!bgav_input_read_32_be(input, &dummy))
return 0;
ret->duration = dummy;
}
else if(ret->version == 1)
{
if(!bgav_input_read_64_be(input, &ret->duration))
return 0;
}
if(!bgav_input_read_16_be(input, &ret->language) ||
!bgav_input_read_16_be(input, &ret->quality))
return 0;
return 1;
}
void bgav_qt_mdhd_free(qt_mdhd_t * c)
{
}
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