1031 lines
29 KiB
C
1031 lines
29 KiB
C
/**
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* avi.c
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*
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* This is external code.
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*
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <ctype.h>
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#include "AVI_avi.h"
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#include "avi_intern.h"
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#include "endian.h"
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static int AVI_DEBUG=0;
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static char DEBUG_FCC[4];
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#define DEBUG(x) if(AVI_DEBUG) printf("AVI DEBUG: " x);
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/* local functions */
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char *fcc_to_char (unsigned int fcc);
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char *tcc_to_char (unsigned int tcc);
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/* implemetation */
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unsigned int GET_FCC (FILE *fp) {
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unsigned char tmp[4];
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tmp[0] = getc(fp);
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tmp[1] = getc(fp);
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tmp[2] = getc(fp);
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tmp[3] = getc(fp);
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return FCC (tmp);
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}
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unsigned int GET_TCC (FILE *fp) {
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char tmp[5];
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tmp[0] = getc(fp);
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tmp[1] = getc(fp);
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tmp[2] = 0;
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tmp[3] = 0;
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return FCC (tmp);
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}
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char *fcc_to_char (unsigned int fcc) {
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DEBUG_FCC[0]= (fcc)&0177;
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DEBUG_FCC[1]= (fcc>>8)&0177;
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DEBUG_FCC[2]= (fcc>>16)&0177;
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DEBUG_FCC[3]= (fcc>>24)&0177;
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return DEBUG_FCC;
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}
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char *tcc_to_char (unsigned int tcc) {
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DEBUG_FCC[0]= (tcc)&0177;
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DEBUG_FCC[1]= (tcc>>8)&0177;
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DEBUG_FCC[2]= 0;
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DEBUG_FCC[3]= 0;
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return DEBUG_FCC;
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}
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int AVI_get_stream (AviMovie *movie, int avist_type, int stream_num) {
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int cur_stream;
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if (movie == NULL)
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return -AVI_ERROR_OPTION;
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for (cur_stream=0; cur_stream < movie->header->Streams; cur_stream++) {
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if (movie->streams[cur_stream].sh.Type == avist_type) {
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if (stream_num == 0)
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return cur_stream;
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else
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stream_num--;
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}
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}
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return -AVI_ERROR_FOUND;
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}
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static int fcc_get_stream (int fcc) {
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char fccs[4];
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fccs[0] = fcc;
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fccs[1] = fcc>>8;
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fccs[2] = fcc>>16;
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fccs[3] = fcc>>24;
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return 10*(fccs[0]-'0') + (fccs[1]-'0');
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}
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static int fcc_is_data (int fcc) {
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char fccs[4];
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fccs[0] = fcc;
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fccs[1] = fcc>>8;
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fccs[2] = fcc>>16;
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fccs[3] = fcc>>24;
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if (!isdigit (fccs[0]) || !isdigit (fccs[1]) || (fccs[2] != 'd' && fccs[2] != 'w'))
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return 0;
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if (fccs[3] != 'b' && fccs[3] != 'c')
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return 0;
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return 1;
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}
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AviError AVI_print_error (AviError in_error) {
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int error;
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if ((int) in_error < 0)
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error = -in_error;
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else
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error = in_error;
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switch (error) {
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case AVI_ERROR_NONE:
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break;
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case AVI_ERROR_COMPRESSION:
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printf ("AVI ERROR: compressed in an unsupported format\n");
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break;
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case AVI_ERROR_OPEN:
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printf ("AVI ERROR: could not open file\n");
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break;
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case AVI_ERROR_READING:
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printf ("AVI ERROR: could not read from file\n");
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break;
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case AVI_ERROR_WRITING:
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printf ("AVI ERROR: could not write to file\n");
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break;
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case AVI_ERROR_FORMAT:
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printf ("AVI ERROR: file is in an illegal or unrecognized format\n");
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break;
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case AVI_ERROR_ALLOC:
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printf ("AVI ERROR: error encountered while allocating memory\n");
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break;
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case AVI_ERROR_OPTION:
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printf ("AVI ERROR: program made illegal request\n");
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break;
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case AVI_ERROR_FOUND:
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printf ("AVI ERROR: movie did not contain expected item\n");
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break;
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default:
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break;
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}
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return in_error;
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}
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void AVI_set_debug (int mode) {
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AVI_DEBUG= mode;
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}
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/*
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int AVI_is_avi (char *name) {
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FILE *fp;
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int ret;
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fp = fopen (name, "rb");
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if (fp == NULL)
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return 0;
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if (GET_FCC (fp) != FCC("RIFF") ||
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!GET_FCC (fp) ||
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GET_FCC (fp) != FCC("AVI ")) {
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ret = 0;
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} else {
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ret = 1;
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}
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fclose(fp);
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return ret;
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}
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*/
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int AVI_is_avi (char *name) {
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int temp, fcca, j;
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AviMovie movie;
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AviMainHeader header;
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AviBitmapInfoHeader bheader;
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DEBUG("opening movie\n");
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memset(&movie, 0, sizeof(AviMovie));
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movie.type = AVI_MOVIE_READ;
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movie.fp = fopen (name, "rb");
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movie.offset_table = NULL;
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if (movie.fp == NULL)
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return 0;
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if (GET_FCC (movie.fp) != FCC("RIFF") ||
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!(movie.size = GET_FCC (movie.fp))) {
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fclose(movie.fp);
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return 0;
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}
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movie.header = &header;
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if (GET_FCC (movie.fp) != FCC("AVI ") ||
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GET_FCC (movie.fp) != FCC("LIST") ||
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!GET_FCC (movie.fp) ||
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GET_FCC (movie.fp) != FCC("hdrl") ||
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(movie.header->fcc = GET_FCC (movie.fp)) != FCC("avih") ||
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!(movie.header->size = GET_FCC (movie.fp))) {
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DEBUG("bad initial header info\n");
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fclose(movie.fp);
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return 0;
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}
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movie.header->MicroSecPerFrame = GET_FCC(movie.fp);
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movie.header->MaxBytesPerSec = GET_FCC(movie.fp);
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movie.header->PaddingGranularity = GET_FCC(movie.fp);
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movie.header->Flags = GET_FCC(movie.fp);
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movie.header->TotalFrames = GET_FCC(movie.fp);
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movie.header->InitialFrames = GET_FCC(movie.fp);
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movie.header->Streams = GET_FCC(movie.fp);
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movie.header->SuggestedBufferSize = GET_FCC(movie.fp);
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movie.header->Width = GET_FCC(movie.fp);
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movie.header->Height = GET_FCC(movie.fp);
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movie.header->Reserved[0] = GET_FCC(movie.fp);
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movie.header->Reserved[1] = GET_FCC(movie.fp);
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movie.header->Reserved[2] = GET_FCC(movie.fp);
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movie.header->Reserved[3] = GET_FCC(movie.fp);
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fseek (movie.fp, movie.header->size-14*4, SEEK_CUR);
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if (movie.header->Streams < 1) {
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DEBUG("streams less than 1\n");
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fclose(movie.fp);
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return 0;
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}
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movie.streams = (AviStreamRec *) MEM_callocN (sizeof(AviStreamRec) * movie.header->Streams, "moviestreams");
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for (temp=0; temp < movie.header->Streams; temp++) {
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if (GET_FCC(movie.fp) != FCC("LIST") ||
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!GET_FCC (movie.fp) ||
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GET_FCC (movie.fp) != FCC ("strl") ||
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(movie.streams[temp].sh.fcc = GET_FCC (movie.fp)) != FCC ("strh") ||
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!(movie.streams[temp].sh.size = GET_FCC (movie.fp))) {
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DEBUG("bad stream header information\n");
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MEM_freeN(movie.streams);
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fclose(movie.fp);
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return 0;
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}
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movie.streams[temp].sh.Type = GET_FCC (movie.fp);
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movie.streams[temp].sh.Handler = GET_FCC (movie.fp);
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fcca = movie.streams[temp].sh.Handler;
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if (movie.streams[temp].sh.Type == FCC("vids")) {
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if (fcca == FCC ("DIB ") ||
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fcca == FCC ("RGB ") ||
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fcca == FCC ("rgb ") ||
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fcca == FCC ("RAW ") ||
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fcca == 0) {
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movie.streams[temp].format = AVI_FORMAT_AVI_RGB;
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} else if (fcca == FCC ("mjpg")||fcca == FCC ("MJPG")) {
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movie.streams[temp].format = AVI_FORMAT_MJPEG;
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} else {
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MEM_freeN(movie.streams);
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fclose(movie.fp);
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return 0;
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}
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}
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movie.streams[temp].sh.Flags = GET_FCC (movie.fp);
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movie.streams[temp].sh.Priority = GET_TCC (movie.fp);
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movie.streams[temp].sh.Language = GET_TCC (movie.fp);
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movie.streams[temp].sh.InitialFrames = GET_FCC (movie.fp);
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movie.streams[temp].sh.Scale = GET_FCC (movie.fp);
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movie.streams[temp].sh.Rate = GET_FCC (movie.fp);
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movie.streams[temp].sh.Start = GET_FCC (movie.fp);
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movie.streams[temp].sh.Length = GET_FCC (movie.fp);
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movie.streams[temp].sh.SuggestedBufferSize = GET_FCC (movie.fp);
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movie.streams[temp].sh.Quality = GET_FCC (movie.fp);
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movie.streams[temp].sh.SampleSize = GET_FCC (movie.fp);
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movie.streams[temp].sh.left = GET_TCC (movie.fp);
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movie.streams[temp].sh.top = GET_TCC (movie.fp);
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movie.streams[temp].sh.right = GET_TCC (movie.fp);
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movie.streams[temp].sh.bottom = GET_TCC (movie.fp);
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fseek (movie.fp, movie.streams[temp].sh.size-14*4, SEEK_CUR);
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if (GET_FCC (movie.fp) != FCC("strf")) {
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DEBUG("no stream format information\n");
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MEM_freeN(movie.streams);
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fclose(movie.fp);
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return 0;
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}
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movie.streams[temp].sf_size= GET_FCC(movie.fp);
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if (movie.streams[temp].sh.Type == FCC("vids")) {
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j = movie.streams[temp].sf_size - (sizeof(AviBitmapInfoHeader) - 8);
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if (j >= 0) {
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AviBitmapInfoHeader *bi;
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movie.streams[temp].sf= &bheader;
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bi= (AviBitmapInfoHeader *) movie.streams[temp].sf;
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bi->fcc= FCC("strf");
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bi->size= movie.streams[temp].sf_size;
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bi->Size= GET_FCC(movie.fp);
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bi->Width= GET_FCC(movie.fp);
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bi->Height= GET_FCC(movie.fp);
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bi->Planes= GET_TCC(movie.fp);
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bi->BitCount= GET_TCC(movie.fp);
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bi->Compression= GET_FCC(movie.fp);
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bi->SizeImage= GET_FCC(movie.fp);
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bi->XPelsPerMeter= GET_FCC(movie.fp);
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bi->YPelsPerMeter= GET_FCC(movie.fp);
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bi->ClrUsed= GET_FCC(movie.fp);
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bi->ClrImportant= GET_FCC(movie.fp);
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fcca = bi->Compression;
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if ( movie.streams[temp].format ==
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AVI_FORMAT_AVI_RGB) {
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if (fcca == FCC ("DIB ") ||
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fcca == FCC ("RGB ") ||
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fcca == FCC ("rgb ") ||
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fcca == FCC ("RAW ") ||
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fcca == 0 ) {
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} else if ( fcca == FCC ("mjpg") ||
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fcca == FCC ("MJPG")) {
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movie.streams[temp].format = AVI_FORMAT_MJPEG;
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} else {
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MEM_freeN(movie.streams);
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fclose(movie.fp);
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return 0;
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}
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}
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}
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if (j > 0) fseek (movie.fp, j, SEEK_CUR);
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} else fseek (movie.fp, movie.streams[temp].sf_size, SEEK_CUR);
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/* Walk to the next LIST */
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while (GET_FCC (movie.fp) != FCC("LIST")) {
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temp= GET_FCC (movie.fp);
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if (temp<0 || ftell(movie.fp) > movie.size) {
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DEBUG("incorrect size in header or error in AVI\n");
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MEM_freeN(movie.streams);
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fclose(movie.fp);
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return 0;
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}
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fseek(movie.fp, temp, SEEK_CUR);
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}
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fseek(movie.fp, -4L, SEEK_CUR);
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}
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MEM_freeN(movie.streams);
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fclose(movie.fp);
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return 1;
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}
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AviError AVI_open_movie (char *name, AviMovie *movie) {
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int temp, fcca, size, j;
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DEBUG("opening movie\n");
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memset(movie, 0, sizeof(AviMovie));
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movie->type = AVI_MOVIE_READ;
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movie->fp = fopen (name, "rb");
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movie->offset_table = NULL;
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if (movie->fp == NULL)
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return AVI_ERROR_OPEN;
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if (GET_FCC (movie->fp) != FCC("RIFF") ||
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!(movie->size = GET_FCC (movie->fp)))
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return AVI_ERROR_FORMAT;
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movie->header = (AviMainHeader *) MEM_mallocN (sizeof (AviMainHeader), "movieheader");
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if (GET_FCC (movie->fp) != FCC("AVI ") ||
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GET_FCC (movie->fp) != FCC("LIST") ||
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!GET_FCC (movie->fp) ||
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GET_FCC (movie->fp) != FCC("hdrl") ||
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(movie->header->fcc = GET_FCC (movie->fp)) != FCC("avih") ||
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!(movie->header->size = GET_FCC (movie->fp))) {
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DEBUG("bad initial header info\n");
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return AVI_ERROR_FORMAT;
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}
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movie->header->MicroSecPerFrame = GET_FCC(movie->fp);
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movie->header->MaxBytesPerSec = GET_FCC(movie->fp);
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movie->header->PaddingGranularity = GET_FCC(movie->fp);
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movie->header->Flags = GET_FCC(movie->fp);
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movie->header->TotalFrames = GET_FCC(movie->fp);
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movie->header->InitialFrames = GET_FCC(movie->fp);
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movie->header->Streams = GET_FCC(movie->fp);
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movie->header->SuggestedBufferSize = GET_FCC(movie->fp);
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movie->header->Width = GET_FCC(movie->fp);
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movie->header->Height = GET_FCC(movie->fp);
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movie->header->Reserved[0] = GET_FCC(movie->fp);
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movie->header->Reserved[1] = GET_FCC(movie->fp);
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movie->header->Reserved[2] = GET_FCC(movie->fp);
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movie->header->Reserved[3] = GET_FCC(movie->fp);
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fseek (movie->fp, movie->header->size-14*4, SEEK_CUR);
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if (movie->header->Streams < 1) {
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DEBUG("streams less than 1\n");
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return AVI_ERROR_FORMAT;
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}
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movie->streams = (AviStreamRec *) MEM_callocN (sizeof(AviStreamRec) * movie->header->Streams, "moviestreams");
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for (temp=0; temp < movie->header->Streams; temp++) {
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if (GET_FCC(movie->fp) != FCC("LIST") ||
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!GET_FCC (movie->fp) ||
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GET_FCC (movie->fp) != FCC ("strl") ||
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(movie->streams[temp].sh.fcc = GET_FCC (movie->fp)) != FCC ("strh") ||
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!(movie->streams[temp].sh.size = GET_FCC (movie->fp))) {
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DEBUG("bad stream header information\n");
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return AVI_ERROR_FORMAT;
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}
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movie->streams[temp].sh.Type = GET_FCC (movie->fp);
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movie->streams[temp].sh.Handler = GET_FCC (movie->fp);
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fcca = movie->streams[temp].sh.Handler;
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if (movie->streams[temp].sh.Type == FCC("vids")) {
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if (fcca == FCC ("DIB ") ||
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fcca == FCC ("RGB ") ||
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fcca == FCC ("rgb ") ||
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fcca == FCC ("RAW ") ||
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fcca == 0) {
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movie->streams[temp].format = AVI_FORMAT_AVI_RGB;
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} else if (fcca == FCC ("mjpg")||fcca == FCC ("MJPG")) {
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movie->streams[temp].format = AVI_FORMAT_MJPEG;
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} else {
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return AVI_ERROR_COMPRESSION;
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}
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}
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movie->streams[temp].sh.Flags = GET_FCC (movie->fp);
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movie->streams[temp].sh.Priority = GET_TCC (movie->fp);
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movie->streams[temp].sh.Language = GET_TCC (movie->fp);
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movie->streams[temp].sh.InitialFrames = GET_FCC (movie->fp);
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movie->streams[temp].sh.Scale = GET_FCC (movie->fp);
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movie->streams[temp].sh.Rate = GET_FCC (movie->fp);
|
|
movie->streams[temp].sh.Start = GET_FCC (movie->fp);
|
|
movie->streams[temp].sh.Length = GET_FCC (movie->fp);
|
|
movie->streams[temp].sh.SuggestedBufferSize = GET_FCC (movie->fp);
|
|
movie->streams[temp].sh.Quality = GET_FCC (movie->fp);
|
|
movie->streams[temp].sh.SampleSize = GET_FCC (movie->fp);
|
|
movie->streams[temp].sh.left = GET_TCC (movie->fp);
|
|
movie->streams[temp].sh.top = GET_TCC (movie->fp);
|
|
movie->streams[temp].sh.right = GET_TCC (movie->fp);
|
|
movie->streams[temp].sh.bottom = GET_TCC (movie->fp);
|
|
|
|
fseek (movie->fp, movie->streams[temp].sh.size-14*4, SEEK_CUR);
|
|
|
|
if (GET_FCC (movie->fp) != FCC("strf")) {
|
|
DEBUG("no stream format information\n");
|
|
return AVI_ERROR_FORMAT;
|
|
}
|
|
|
|
movie->streams[temp].sf_size= GET_FCC(movie->fp);
|
|
if (movie->streams[temp].sh.Type == FCC("vids")) {
|
|
j = movie->streams[temp].sf_size - (sizeof(AviBitmapInfoHeader) - 8);
|
|
if (j >= 0) {
|
|
AviBitmapInfoHeader *bi;
|
|
|
|
movie->streams[temp].sf= MEM_mallocN(sizeof(AviBitmapInfoHeader), "streamformat");
|
|
|
|
bi= (AviBitmapInfoHeader *) movie->streams[temp].sf;
|
|
|
|
bi->fcc= FCC("strf");
|
|
bi->size= movie->streams[temp].sf_size;
|
|
bi->Size= GET_FCC(movie->fp);
|
|
bi->Width= GET_FCC(movie->fp);
|
|
bi->Height= GET_FCC(movie->fp);
|
|
bi->Planes= GET_TCC(movie->fp);
|
|
bi->BitCount= GET_TCC(movie->fp);
|
|
bi->Compression= GET_FCC(movie->fp);
|
|
bi->SizeImage= GET_FCC(movie->fp);
|
|
bi->XPelsPerMeter= GET_FCC(movie->fp);
|
|
bi->YPelsPerMeter= GET_FCC(movie->fp);
|
|
bi->ClrUsed= GET_FCC(movie->fp);
|
|
bi->ClrImportant= GET_FCC(movie->fp);
|
|
|
|
fcca = bi->Compression;
|
|
|
|
if ( movie->streams[temp].format ==
|
|
AVI_FORMAT_AVI_RGB) {
|
|
if (fcca == FCC ("DIB ") ||
|
|
fcca == FCC ("RGB ") ||
|
|
fcca == FCC ("rgb ") ||
|
|
fcca == FCC ("RAW ") ||
|
|
fcca == 0 ) {
|
|
} else if ( fcca == FCC ("mjpg") ||
|
|
fcca == FCC ("MJPG")) {
|
|
movie->streams[temp].format = AVI_FORMAT_MJPEG;
|
|
} else {
|
|
return AVI_ERROR_COMPRESSION;
|
|
}
|
|
}
|
|
|
|
}
|
|
if (j > 0) fseek (movie->fp, j, SEEK_CUR);
|
|
} else fseek (movie->fp, movie->streams[temp].sf_size, SEEK_CUR);
|
|
|
|
/* Walk to the next LIST */
|
|
while (GET_FCC (movie->fp) != FCC("LIST")) {
|
|
temp= GET_FCC (movie->fp);
|
|
if (temp<0 || ftell(movie->fp) > movie->size) {
|
|
DEBUG("incorrect size in header or error in AVI\n");
|
|
return AVI_ERROR_FORMAT;
|
|
}
|
|
fseek(movie->fp, temp, SEEK_CUR);
|
|
}
|
|
|
|
fseek(movie->fp, -4L, SEEK_CUR);
|
|
}
|
|
|
|
while (1) {
|
|
temp = GET_FCC (movie->fp);
|
|
size = GET_FCC (movie->fp);
|
|
|
|
if (size == 0)
|
|
break;
|
|
|
|
if (temp == FCC("LIST")) {
|
|
if (GET_FCC(movie->fp) == FCC ("movi"))
|
|
break;
|
|
else
|
|
fseek (movie->fp, size-4, SEEK_CUR);
|
|
} else {
|
|
fseek (movie->fp, size, SEEK_CUR);
|
|
}
|
|
if (ftell(movie->fp) > movie->size) {
|
|
DEBUG("incorrect size in header or error in AVI\n");
|
|
return AVI_ERROR_FORMAT;
|
|
}
|
|
}
|
|
|
|
movie->movi_offset = ftell (movie->fp);
|
|
movie->read_offset = movie->movi_offset;
|
|
if (AVI_DEBUG) printf ("movi_offset is %d\n", movie->movi_offset);
|
|
|
|
/* Read in the index if the file has one, otherwise create one */
|
|
if (movie->header->Flags & AVIF_HASINDEX) {
|
|
fseek(movie->fp, size-4, SEEK_CUR);
|
|
|
|
if (GET_FCC(movie->fp) != FCC("idx1")) {
|
|
DEBUG("bad index informatio\n");
|
|
return AVI_ERROR_FORMAT;
|
|
}
|
|
|
|
movie->index_entries = GET_FCC (movie->fp)/sizeof(AviIndexEntry);
|
|
if (movie->index_entries == 0) {
|
|
DEBUG("no index entries\n");
|
|
return AVI_ERROR_FORMAT;
|
|
}
|
|
|
|
movie->entries = (AviIndexEntry *) MEM_mallocN (movie->index_entries * sizeof(AviIndexEntry),"movieentries");
|
|
|
|
for (temp=0; temp < movie->index_entries; temp++) {
|
|
movie->entries[temp].ChunkId = GET_FCC (movie->fp);
|
|
movie->entries[temp].Flags = GET_FCC (movie->fp);
|
|
movie->entries[temp].Offset = GET_FCC (movie->fp);
|
|
movie->entries[temp].Size = GET_FCC (movie->fp);
|
|
|
|
if (AVI_DEBUG) printf ("Index entry %04d: ChunkId:%s Flags:%d Offset:%d Size:%d\n", temp, fcc_to_char(movie->entries[temp].ChunkId), movie->entries[temp].Flags, movie->entries[temp].Offset, movie->entries[temp].Size);
|
|
}
|
|
|
|
/* Some AVI's have offset entries in absolute coordinates
|
|
* instead of an offset from the movie beginning... this is...
|
|
* wacky, but we need to handle it. The wacky offset always
|
|
* starts at movi_offset it seems... so we'll check that.
|
|
* Note the the offset needs an extra 4 bytes for some
|
|
* undetermined reason */
|
|
|
|
if (movie->entries[0].Offset == movie->movi_offset)
|
|
movie->read_offset= 4;
|
|
}
|
|
|
|
DEBUG("movie succesfully opened\n");
|
|
return AVI_ERROR_NONE;
|
|
}
|
|
|
|
void *AVI_read_frame (AviMovie *movie, AviFormat format, int frame, int stream) {
|
|
int cur_frame=-1, temp, i=0, rewind=1;
|
|
void *buffer;
|
|
|
|
/* Retrieve the record number of the desired frame in the index
|
|
If a chunk has Size 0 we need to rewind to previous frame */
|
|
while(rewind && frame > -1) {
|
|
i=0;
|
|
cur_frame=-1;
|
|
rewind = 0;
|
|
|
|
while (cur_frame < frame && i < movie->index_entries) {
|
|
if (fcc_is_data (movie->entries[i].ChunkId) &&
|
|
fcc_get_stream (movie->entries[i].ChunkId) == stream) {
|
|
if ((cur_frame == frame -1) && (movie->entries[i].Size == 0)) {
|
|
rewind = 1;
|
|
frame = frame -1;
|
|
} else {
|
|
cur_frame++;
|
|
}
|
|
}
|
|
i++;
|
|
}
|
|
}
|
|
|
|
if (cur_frame != frame) return NULL;
|
|
|
|
|
|
fseek (movie->fp, movie->read_offset + movie->entries[i-1].Offset, SEEK_SET);
|
|
|
|
temp = GET_FCC(movie->fp);
|
|
buffer = MEM_mallocN (temp,"readbuffer");
|
|
|
|
if (fread (buffer, 1, temp, movie->fp) != temp) {
|
|
MEM_freeN(buffer);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
buffer = avi_format_convert (movie, stream, buffer, movie->streams[stream].format, format, &temp);
|
|
|
|
return buffer;
|
|
}
|
|
|
|
AviError AVI_close (AviMovie *movie) {
|
|
int i;
|
|
|
|
fclose (movie->fp);
|
|
|
|
for (i=0; i < movie->header->Streams; i++) {
|
|
if (movie->streams[i].sf != NULL)
|
|
MEM_freeN (movie->streams[i].sf);
|
|
}
|
|
|
|
if (movie->header != NULL)
|
|
MEM_freeN (movie->header);
|
|
if (movie->streams!= NULL)
|
|
MEM_freeN (movie->streams);
|
|
if (movie->entries != NULL)
|
|
MEM_freeN (movie->entries);
|
|
if (movie->offset_table != NULL)
|
|
MEM_freeN (movie->offset_table);
|
|
|
|
return AVI_ERROR_NONE;
|
|
}
|
|
|
|
AviError AVI_open_compress (char *name, AviMovie *movie, int streams, ...) {
|
|
va_list ap;
|
|
AviList list;
|
|
AviChunk chunk;
|
|
int i;
|
|
int header_pos1, header_pos2;
|
|
int stream_pos1, stream_pos2;
|
|
|
|
movie->type = AVI_MOVIE_WRITE;
|
|
movie->fp = fopen (name, "wb");
|
|
|
|
movie->index_entries = 0;
|
|
|
|
if (movie->fp == NULL)
|
|
return AVI_ERROR_OPEN;
|
|
|
|
movie->offset_table = (long *) MEM_mallocN ((1+streams*2) * sizeof (long),"offsettable");
|
|
|
|
for (i=0; i < 1 + streams*2; i++)
|
|
movie->offset_table[i] = -1L;
|
|
|
|
movie->entries = NULL;
|
|
|
|
movie->header = (AviMainHeader *) MEM_mallocN (sizeof(AviMainHeader),"movieheader");
|
|
|
|
movie->header->fcc = FCC("avih");
|
|
movie->header->size = 56;
|
|
movie->header->MicroSecPerFrame = 66667;
|
|
movie->header->MaxBytesPerSec = 0;
|
|
movie->header->PaddingGranularity = 0;
|
|
movie->header->Flags = AVIF_HASINDEX | AVIF_MUSTUSEINDEX;
|
|
movie->header->TotalFrames = 0;
|
|
movie->header->InitialFrames = 0;
|
|
movie->header->Streams = streams;
|
|
movie->header->SuggestedBufferSize = 0;
|
|
movie->header->Width = 0;
|
|
movie->header->Height = 0;
|
|
movie->header->Reserved[0] = 0;
|
|
movie->header->Reserved[1] = 0;
|
|
movie->header->Reserved[2] = 0;
|
|
movie->header->Reserved[3] = 0;
|
|
|
|
movie->streams = (AviStreamRec *) MEM_mallocN (sizeof(AviStreamRec) * movie->header->Streams,"moviestreams");
|
|
|
|
va_start (ap, streams);
|
|
|
|
for (i=0; i < movie->header->Streams; i++) {
|
|
movie->streams[i].format = va_arg(ap, AviFormat);
|
|
|
|
movie->streams[i].sh.fcc = FCC ("strh");
|
|
movie->streams[i].sh.size = 56;
|
|
movie->streams[i].sh.Type = avi_get_format_type (movie->streams[i].format);
|
|
if (movie->streams[i].sh.Type == 0)
|
|
return AVI_ERROR_FORMAT;
|
|
|
|
movie->streams[i].sh.Handler = avi_get_format_fcc (movie->streams[i].format);
|
|
if (movie->streams[i].sh.Handler == 0)
|
|
return AVI_ERROR_FORMAT;
|
|
|
|
movie->streams[i].sh.Flags = 0;
|
|
movie->streams[i].sh.Priority = 0;
|
|
movie->streams[i].sh.Language = 0;
|
|
movie->streams[i].sh.InitialFrames = 0;
|
|
movie->streams[i].sh.Scale = 66667;
|
|
movie->streams[i].sh.Rate = 1000000;
|
|
movie->streams[i].sh.Start = 0;
|
|
movie->streams[i].sh.Length = 0;
|
|
movie->streams[i].sh.SuggestedBufferSize = 0;
|
|
movie->streams[i].sh.Quality = 10000;
|
|
movie->streams[i].sh.SampleSize = 0;
|
|
movie->streams[i].sh.left = 0;
|
|
movie->streams[i].sh.top = 0;
|
|
movie->streams[i].sh.right = 0;
|
|
movie->streams[i].sh.bottom = 0;
|
|
|
|
if (movie->streams[i].sh.Type == FCC("vids")) {
|
|
/*
|
|
if (movie->streams[i].format == AVI_FORMAT_MJPEG) {
|
|
movie->streams[i].sf = MEM_mallocN (sizeof(AviBitmapInfoHeader)
|
|
+ sizeof(AviMJPEGUnknown),"moviestreamformatL");
|
|
movie->streams[i].sf_size = sizeof(AviBitmapInfoHeader) + sizeof(AviMJPEGUnknown);
|
|
} else {
|
|
*/
|
|
movie->streams[i].sf = MEM_mallocN (sizeof(AviBitmapInfoHeader), "moviestreamformatS");
|
|
movie->streams[i].sf_size = sizeof(AviBitmapInfoHeader);
|
|
|
|
((AviBitmapInfoHeader *) movie->streams[i].sf)->fcc = FCC ("strf");
|
|
((AviBitmapInfoHeader *) movie->streams[i].sf)->size = movie->streams[i].sf_size - 8;
|
|
((AviBitmapInfoHeader *) movie->streams[i].sf)->Size = movie->streams[i].sf_size - 8;
|
|
((AviBitmapInfoHeader *) movie->streams[i].sf)->Width = 0;
|
|
((AviBitmapInfoHeader *) movie->streams[i].sf)->Height = 0;
|
|
((AviBitmapInfoHeader *) movie->streams[i].sf)->Planes = 1;
|
|
((AviBitmapInfoHeader *) movie->streams[i].sf)->BitCount = 24;
|
|
((AviBitmapInfoHeader *) movie->streams[i].sf)->Compression = avi_get_format_compression (movie->streams[i].format);
|
|
((AviBitmapInfoHeader *) movie->streams[i].sf)->SizeImage = 0;
|
|
((AviBitmapInfoHeader *) movie->streams[i].sf)->XPelsPerMeter = 0;
|
|
((AviBitmapInfoHeader *) movie->streams[i].sf)->YPelsPerMeter = 0;
|
|
((AviBitmapInfoHeader *) movie->streams[i].sf)->ClrUsed = 0;
|
|
((AviBitmapInfoHeader *) movie->streams[i].sf)->ClrImportant = 0;
|
|
|
|
/*
|
|
if (movie->streams[i].format == AVI_FORMAT_MJPEG) {
|
|
AviMJPEGUnknown *tmp;
|
|
|
|
tmp = (AviMJPEGUnknown *) ((char*) movie->streams[i].sf +sizeof(AviBitmapInfoHeader));
|
|
|
|
tmp->a = 44;
|
|
tmp->b = 24;
|
|
tmp->c = 0;
|
|
tmp->d = 2;
|
|
tmp->e = 8;
|
|
tmp->f = 2;
|
|
tmp->g = 1;
|
|
}
|
|
} else if (movie->streams[i].sh.Type == FCC("auds")) {
|
|
;
|
|
*/
|
|
}
|
|
}
|
|
|
|
list.fcc = FCC("RIFF");
|
|
list.size = 0;
|
|
list.ids = FCC("AVI ");
|
|
|
|
awrite (movie, &list, 1, sizeof(AviList), movie->fp, AVI_LIST);
|
|
|
|
list.fcc = FCC("LIST");
|
|
list.size = 0;
|
|
list.ids = FCC("hdrl");
|
|
|
|
awrite (movie, &list, 1, sizeof(AviList), movie->fp, AVI_LIST);
|
|
|
|
header_pos1 = ftell(movie->fp);
|
|
|
|
movie->offset_table[0] = ftell(movie->fp);
|
|
|
|
awrite (movie, movie->header, 1, sizeof(AviMainHeader), movie->fp, AVI_MAINH);
|
|
|
|
for (i=0; i < movie->header->Streams; i++) {
|
|
list.fcc = FCC("LIST");
|
|
list.size = 0;
|
|
list.ids = FCC("strl");
|
|
|
|
awrite (movie, &list, 1, sizeof(AviList), movie->fp, AVI_LIST);
|
|
|
|
stream_pos1 = ftell(movie->fp);
|
|
|
|
movie->offset_table[1+i*2] = ftell(movie->fp);
|
|
awrite (movie, &movie->streams[i].sh, 1, sizeof(AviStreamHeader), movie->fp, AVI_STREAMH);
|
|
|
|
movie->offset_table[1+i*2+1] = ftell(movie->fp);
|
|
awrite (movie, movie->streams[i].sf, 1, movie->streams[i].sf_size, movie->fp, AVI_BITMAPH);
|
|
|
|
stream_pos2 = ftell(movie->fp);
|
|
|
|
fseek (movie->fp, stream_pos1-8, SEEK_SET);
|
|
|
|
PUT_FCCN((stream_pos2-stream_pos1+4L), movie->fp);
|
|
|
|
fseek (movie->fp, stream_pos2, SEEK_SET);
|
|
}
|
|
|
|
if (ftell(movie->fp) < 2024 - 8) {
|
|
chunk.fcc = FCC("JUNK");
|
|
chunk.size = 2024-8-ftell(movie->fp);
|
|
|
|
awrite (movie, &chunk, 1, sizeof(AviChunk), movie->fp, AVI_CHUNK);
|
|
|
|
for (i=0; i < chunk.size; i++)
|
|
putc(0, movie->fp);
|
|
}
|
|
|
|
header_pos2 = ftell(movie->fp);
|
|
|
|
list.fcc = FCC("LIST");
|
|
list.size = 0;
|
|
list.ids = FCC("movi");
|
|
|
|
awrite (movie, &list, 1, sizeof(AviList), movie->fp, AVI_LIST);
|
|
|
|
movie->movi_offset = ftell(movie->fp)-8L;
|
|
|
|
fseek (movie->fp, AVI_HDRL_SOFF, SEEK_SET);
|
|
|
|
PUT_FCCN((header_pos2-header_pos1+4L), movie->fp);
|
|
|
|
return AVI_ERROR_NONE;
|
|
}
|
|
|
|
AviError AVI_write_frame (AviMovie *movie, int frame_num, ...) {
|
|
AviList list;
|
|
AviChunk chunk;
|
|
AviIndexEntry *temp;
|
|
va_list ap;
|
|
int stream;
|
|
long rec_off;
|
|
AviFormat format;
|
|
void *buffer;
|
|
int size;
|
|
|
|
if (frame_num < 0)
|
|
return AVI_ERROR_OPTION;
|
|
|
|
/* Allocate the new memory for the index entry */
|
|
|
|
if (frame_num+1 > movie->index_entries) {
|
|
temp = (AviIndexEntry *) MEM_mallocN ((frame_num+1) *
|
|
(movie->header->Streams+1) * sizeof(AviIndexEntry),"newidxentry");
|
|
if (movie->entries != NULL) {
|
|
memcpy (temp, movie->entries, movie->index_entries * (movie->header->Streams+1)
|
|
* sizeof(AviIndexEntry));
|
|
MEM_freeN (movie->entries);
|
|
}
|
|
|
|
movie->entries = temp;
|
|
movie->index_entries = frame_num+1;
|
|
}
|
|
|
|
/* Slap a new record entry onto the end of the file */
|
|
|
|
fseek (movie->fp, 0L, SEEK_END);
|
|
|
|
list.fcc = FCC("LIST");
|
|
list.size = 0;
|
|
list.ids = FCC("rec ");
|
|
|
|
awrite (movie, &list, 1, sizeof(AviList), movie->fp, AVI_LIST);
|
|
|
|
rec_off = ftell (movie->fp)-8L;
|
|
|
|
/* Write a frame for every stream */
|
|
|
|
va_start (ap, frame_num);
|
|
|
|
for (stream=0; stream < movie->header->Streams; stream++) {
|
|
unsigned int tbuf=0;
|
|
|
|
format = va_arg (ap, AviFormat);
|
|
buffer = va_arg (ap, void*);
|
|
size = va_arg (ap, int);
|
|
|
|
/* Convert the buffer into the output format */
|
|
buffer = avi_format_convert (movie, stream, buffer, format, movie->streams[stream].format, &size);
|
|
|
|
/* Write the header info for this data chunk */
|
|
|
|
fseek (movie->fp, 0L, SEEK_END);
|
|
|
|
chunk.fcc = avi_get_data_id (format, stream);
|
|
chunk.size = size;
|
|
|
|
if (size%4) chunk.size += 4 - size%4;
|
|
|
|
awrite (movie, &chunk, 1, sizeof(AviChunk), movie->fp, AVI_CHUNK);
|
|
|
|
/* Write the index entry for this data chunk */
|
|
|
|
movie->entries[frame_num * (movie->header->Streams+1) + stream + 1].ChunkId = chunk.fcc;
|
|
movie->entries[frame_num * (movie->header->Streams+1) + stream + 1].Flags = AVIIF_KEYFRAME;
|
|
movie->entries[frame_num * (movie->header->Streams+1) + stream + 1].Offset = ftell(movie->fp)-12L-movie->movi_offset;
|
|
movie->entries[frame_num * (movie->header->Streams+1) + stream + 1].Size = chunk.size;
|
|
|
|
/* Write the chunk */
|
|
awrite (movie, buffer, 1, size, movie->fp, AVI_RAW);
|
|
MEM_freeN (buffer);
|
|
|
|
if (size%4) awrite (movie, &tbuf, 1, 4-size%4, movie->fp, AVI_RAW);
|
|
|
|
/* Update the stream headers length field */
|
|
movie->streams[stream].sh.Length++;
|
|
fseek (movie->fp, movie->offset_table[1+stream*2], SEEK_SET);
|
|
awrite (movie, &movie->streams[stream].sh, 1, sizeof(AviStreamHeader), movie->fp, AVI_STREAMH);
|
|
}
|
|
va_end (ap);
|
|
|
|
/* Record the entry for the new record */
|
|
|
|
fseek (movie->fp, 0L, SEEK_END);
|
|
|
|
movie->entries[frame_num * (movie->header->Streams+1)].ChunkId = FCC("rec ");
|
|
movie->entries[frame_num * (movie->header->Streams+1)].Flags = AVIIF_LIST;
|
|
movie->entries[frame_num * (movie->header->Streams+1)].Offset = rec_off-8L-movie->movi_offset;
|
|
movie->entries[frame_num * (movie->header->Streams+1)].Size = ftell(movie->fp)-(rec_off+4L);
|
|
|
|
/* Update the record size */
|
|
fseek (movie->fp, rec_off, SEEK_SET);
|
|
PUT_FCCN (movie->entries[frame_num * (movie->header->Streams+1)].Size, movie->fp);
|
|
|
|
/* Update the main header information in the file */
|
|
movie->header->TotalFrames++;
|
|
fseek (movie->fp, movie->offset_table[0], SEEK_SET);
|
|
awrite (movie, movie->header, 1, sizeof(AviMainHeader), movie->fp, AVI_MAINH);
|
|
|
|
return AVI_ERROR_NONE;
|
|
}
|
|
|
|
AviError AVI_close_compress (AviMovie *movie) {
|
|
int temp, movi_size, i;
|
|
|
|
fseek (movie->fp, 0L, SEEK_END);
|
|
movi_size = ftell (movie->fp);
|
|
|
|
PUT_FCC ("idx1", movie->fp);
|
|
PUT_FCCN ((movie->index_entries*(movie->header->Streams+1)*16), movie->fp);
|
|
|
|
for (temp=0; temp < movie->index_entries*(movie->header->Streams+1); temp++)
|
|
awrite (movie, &movie->entries[temp], 1, sizeof(AviIndexEntry), movie->fp, AVI_INDEXE);
|
|
|
|
temp = ftell (movie->fp);
|
|
|
|
fseek (movie->fp, AVI_RIFF_SOFF, SEEK_SET);
|
|
|
|
PUT_FCCN((temp-8L), movie->fp);
|
|
|
|
fseek (movie->fp, movie->movi_offset, SEEK_SET);
|
|
|
|
PUT_FCCN((movi_size-(movie->movi_offset+4L)),movie->fp);
|
|
|
|
fclose (movie->fp);
|
|
|
|
for (i=0; i < movie->header->Streams; i++) {
|
|
if (movie->streams[i].sf != NULL)
|
|
MEM_freeN (movie->streams[i].sf);
|
|
}
|
|
if (movie->header != NULL)
|
|
MEM_freeN (movie->header);
|
|
if (movie->entries != NULL)
|
|
MEM_freeN (movie->entries);
|
|
if (movie->streams != NULL)
|
|
MEM_freeN (movie->streams);
|
|
if (movie->offset_table != NULL)
|
|
MEM_freeN (movie->offset_table);
|
|
return AVI_ERROR_NONE;
|
|
}
|