blender-archive/source/blender/avi/intern/codecs.c

/**
 * codecs.c
 *
 * This is external code. Identify and convert different avi-files.
 *
 * $Id$
 *
 * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
 *
 * 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. The Blender
 * Foundation also sells licenses for use in proprietary software under
 * the Blender License.  See http://www.blender.org/BL/ for information
 * about this.
 *
 * 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, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL/BL DUAL LICENSE BLOCK *****
 */

#include "AVI_avi.h"
#include "avi_intern.h"

#include "avirgb.h"
#include "mjpeg.h"
#include "rgb32.h"

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

void *avi_format_convert (AviMovie *movie, int stream, void *buffer, AviFormat from, AviFormat to, int *size) {
  if (from == to)
    return buffer;
    
  if (from != AVI_FORMAT_RGB24 &&
      to != AVI_FORMAT_RGB24)
    return avi_format_convert(movie, stream, 
			      avi_format_convert (movie, stream, buffer, from, AVI_FORMAT_RGB24, size), 
			      AVI_FORMAT_RGB24, to, size);
  
  switch (to) {
  case AVI_FORMAT_RGB24:
    switch (from) {
    case AVI_FORMAT_AVI_RGB:
      buffer = avi_converter_from_avi_rgb (movie, stream, buffer, size);
      break;
    case AVI_FORMAT_MJPEG:
      buffer = avi_converter_from_mjpeg (movie, stream, buffer, size);
      break;
    case AVI_FORMAT_RGB32:
      buffer = avi_converter_from_rgb32 (movie, stream, buffer, size);
      break;
    default:
      break;
    }
    break;
  case AVI_FORMAT_AVI_RGB:
    buffer = avi_converter_to_avi_rgb (movie, stream, buffer, size);
    break;
  case AVI_FORMAT_MJPEG:
    buffer = avi_converter_to_mjpeg (movie, stream, buffer, size);
    break;
  case AVI_FORMAT_RGB32:
    buffer = avi_converter_to_rgb32 (movie, stream, buffer, size);
    break;
  default:
    break;
  }

  return buffer;
}

int avi_get_data_id (AviFormat format, int stream) {
  char fcc[5];

  if (avi_get_format_type (format) == FCC("vids"))
    sprintf (fcc,"%2.2ddc",stream);
  else if (avi_get_format_type (format) == FCC("auds"))
    sprintf (fcc,"%2.2ddc",stream);
  else
    return 0;

  return FCC(fcc);
}

int avi_get_format_type (AviFormat format) {
  switch (format) {
  case AVI_FORMAT_RGB24:
  case AVI_FORMAT_RGB32:
  case AVI_FORMAT_AVI_RGB:
  case AVI_FORMAT_MJPEG:
    return FCC("vids");
    break;
  default:
    return 0;
    break;
  }
}

int avi_get_format_fcc (AviFormat format) {
  switch (format) {
  case AVI_FORMAT_RGB24:
  case AVI_FORMAT_RGB32:
  case AVI_FORMAT_AVI_RGB:
    return FCC("DIB ");
    break;
  case AVI_FORMAT_MJPEG:
    return FCC("MJPG");
    break;
  default:
    return 0;
    break;
  }
}

int avi_get_format_compression (AviFormat format) {
  switch (format) {
  case AVI_FORMAT_RGB24:
  case AVI_FORMAT_RGB32:
  case AVI_FORMAT_AVI_RGB:
    return 0;
    break;
  case AVI_FORMAT_MJPEG:
    return FCC("MJPG");
    break;
  default:
    return 0;
    break;
  }
}