ftab.c

这个库实现了录象功能

/*******************************************************************************
 ftab.c

 libquicktime - A library for reading and writing quicktime/avi/mp4 files.
 http://libquicktime.sourceforge.net

 Copyright (C) 2002 Heroine Virtual Ltd.
 Copyright (C) 2002-2007 Members of the libquicktime project.

 This library is free software; you can redistribute it and/or modify it under
 the terms of the GNU Lesser General Public License as published by the Free
 Software Foundation; either version 2.1 of the License, or (at your option)
 any later version.

 This library 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 Lesser General Public License for more
 details.

 You should have received a copy of the GNU Lesser General Public License along
 with this library; if not, write to the Free Software Foundation, Inc., 51
 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*******************************************************************************/ 

#include "lqt_private.h"
#include <stdlib.h>
#include <string.h>

int quicktime_ftab_init(quicktime_ftab_t *ftab, int font_id, const char * font_name)
  {
  ftab->num_fonts = 1;
  ftab->fonts = calloc(ftab->num_fonts, sizeof(*ftab->fonts));
  ftab->fonts[0].font_id = font_id;
  strcpy(ftab->fonts[0].font_name, font_name);
  return 0;
  }

int quicktime_ftab_delete(quicktime_ftab_t *ftab)
  {
  if(ftab->fonts)
    free(ftab->fonts);
  return 0;
  }

void quicktime_ftab_dump(quicktime_ftab_t *ftab)
  {
  int i;
  lqt_dump("       font table (ftab)\n");
  lqt_dump("         num_fonts: %d\n", ftab->num_fonts);
  
  for(i = 0; i < ftab->num_fonts; i++)
    {
    lqt_dump("         Font %d, ID: %d, name: %s\n",
             i+1, ftab->fonts[i].font_id, ftab->fonts[i].font_name);
    }
  }

int quicktime_read_ftab(quicktime_t *file, quicktime_ftab_t *ftab)
  {
  int i;
  ftab->num_fonts = quicktime_read_int16(file);
  ftab->fonts = calloc(ftab->num_fonts, sizeof(*ftab->fonts));

  for(i = 0; i < ftab->num_fonts; i++)
    {
    ftab->fonts[i].font_id = quicktime_read_int16(file);
    quicktime_read_pascal(file, ftab->fonts[i].font_name);
    }
  return 0;
  }

void quicktime_write_ftab(quicktime_t *file, quicktime_ftab_t *ftab)
  {
  int i;
  quicktime_atom_t atom;
  quicktime_atom_write_header(file, &atom, "ftab");
  quicktime_write_int16(file, ftab->num_fonts);

  for(i = 0; i < ftab->num_fonts; i++)
    {
    quicktime_write_int16(file, ftab->fonts[i].font_id);
    quicktime_write_pascal(file, ftab->fonts[i].font_name);
    }
  quicktime_atom_write_footer(file, &atom);
  }