avi_options.c

Go to the documentation of this file.

/*
 * 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, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 */
 
#include "AVI_avi.h"
#include "BLI_fileops.h"
#include "avi_endian.h"
#include "avi_intern.h"
 
#ifdef WIN32
#  include "BLI_winstuff.h"
#endif
 
/* avi_set_compress_options gets its own file... now don't WE feel important? */
 
AviError AVI_set_compress_option(
    AviMovie *movie, int option_type, int stream, AviOption option, void *opt_data)
{
  int i;
  int useconds;
 
  (void)stream; /* unused */
 
  if (movie->header->TotalFrames != 0) {
    /* Can't change params after we have already started writing frames. */
    return AVI_ERROR_OPTION;
  }
 
  switch (option_type) {
    case AVI_OPTION_TYPE_MAIN:
      switch (option) {
        case AVI_OPTION_WIDTH:
          movie->header->Width = *((int *)opt_data);
          movie->header->SuggestedBufferSize = movie->header->Width * movie->header->Height * 3;
 
          for (i = 0; i < movie->header->Streams; i++) {
            if (avi_get_format_type(movie->streams[i].format) == FCC("vids")) {
              ((AviBitmapInfoHeader *)movie->streams[i].sf)->Width = *((int *)opt_data);
              movie->streams[i].sh.SuggestedBufferSize = movie->header->SuggestedBufferSize;
              movie->streams[i].sh.right = *((int *)opt_data);
              ((AviBitmapInfoHeader *)movie->streams[i].sf)->SizeImage =
                  movie->header->SuggestedBufferSize;
              BLI_fseek(movie->fp, movie->offset_table[1 + i * 2 + 1], SEEK_SET);
              awrite(movie,
                     movie->streams[i].sf,
                     1,
                     movie->streams[i].sf_size,
                     movie->fp,
                     AVI_BITMAPH);
            }
          }
 
          break;
 
        case AVI_OPTION_HEIGHT:
          movie->header->Height = *((int *)opt_data);
          movie->header->SuggestedBufferSize = movie->header->Width * movie->header->Height * 3;
 
          for (i = 0; i < movie->header->Streams; i++) {
            if (avi_get_format_type(movie->streams[i].format) == FCC("vids")) {
              ((AviBitmapInfoHeader *)movie->streams[i].sf)->Height = *((int *)opt_data);
              movie->streams[i].sh.SuggestedBufferSize = movie->header->SuggestedBufferSize;
              movie->streams[i].sh.bottom = *((int *)opt_data);
              ((AviBitmapInfoHeader *)movie->streams[i].sf)->SizeImage =
                  movie->header->SuggestedBufferSize;
              BLI_fseek(movie->fp, movie->offset_table[1 + i * 2 + 1], SEEK_SET);
              awrite(movie,
                     movie->streams[i].sf,
                     1,
                     movie->streams[i].sf_size,
                     movie->fp,
                     AVI_BITMAPH);
            }
          }
 
          break;
 
        case AVI_OPTION_QUALITY:
          for (i = 0; i < movie->header->Streams; i++) {
            if (avi_get_format_type(movie->streams[i].format) == FCC("vids")) {
              movie->streams[i].sh.Quality = (*((int *)opt_data)) * 100;
              BLI_fseek(movie->fp, movie->offset_table[1 + i * 2 + 1], SEEK_SET);
              awrite(movie,
                     movie->streams[i].sf,
                     1,
                     movie->streams[i].sf_size,
                     movie->fp,
                     AVI_BITMAPH);
            }
          }
          break;
 
        case AVI_OPTION_FRAMERATE:
          useconds = (int)(1000000 / (*((double *)opt_data)));
          if (useconds) {
            movie->header->MicroSecPerFrame = useconds;
          }
 
          for (i = 0; i < movie->header->Streams; i++) {
            if (avi_get_format_type(movie->streams[i].format) == FCC("vids")) {
              movie->streams[i].sh.Scale = movie->header->MicroSecPerFrame;
              BLI_fseek(movie->fp, movie->offset_table[1 + i * 2 + 1], SEEK_SET);
              awrite(movie,
                     movie->streams[i].sf,
                     1,
                     movie->streams[i].sf_size,
                     movie->fp,
                     AVI_BITMAPH);
            }
          }
          break;
      }
 
      BLI_fseek(movie->fp, movie->offset_table[0], SEEK_SET);
      awrite(movie, movie->header, 1, sizeof(AviMainHeader), movie->fp, AVI_MAINH);
 
      break;
    case AVI_OPTION_TYPE_STRH:
      break;
    case AVI_OPTION_TYPE_STRF:
      break;
    default:
      return AVI_ERROR_OPTION;
  }
 
  return AVI_ERROR_NONE;
}