Imported Upstream version 1.1.11upstream/1.1.11upstream

1 files changed, 295 insertions, 0 deletions

diff --git a/genisoimage/dvd_reader.c b/genisoimage/dvd_reader.c
new file mode 100644
index 0000000..1a85abe
--- /dev/null
+++ b/genisoimage/dvd_reader.c
@@ -0,0 +1,295 @@
+/*
+ * This file has been modified for the cdrkit suite.
+ *
+ * The behaviour and appearence of the program code below can differ to a major
+ * extent from the version distributed by the original author(s).
+ *
+ * For details, see Changelog file distributed with the cdrkit package. If you
+ * received this file from another source then ask the distributing person for
+ * a log of modifications.
+ *
+ */
+
+/* @(#)dvd_reader.c	1.3 04/03/04 joerg */
+/*
+ * Copyright (C) 2001, 2002 Billy Biggs <vektor@dumbterm.net>,
+ *                          Håkan Hjort <d95hjort@dtek.chalmers.se>,
+ *                          Olaf Beck <olaf_sc@yahoo.com>
+ *			    (I only did the cut down no other contribs)
+ *			    Jörg Schilling <schilling@fokus.gmd.de>
+ *			    (making the code portable)
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ * NOTE: This is a cut down version of libdvdread for genisoimage, due
+ * to portability issues with the current libdvdread according to
+ * the maintainer of genisoimage.
+ * This cut down version only reads from a harddisk file structure
+ * and it only implements the functions necessary inorder to make
+ * genisoimage produce valid DVD-Video images.
+ * DON'T USE THIS LIBRARY IN ANY OTHER PROGRAM GET THE REAL
+ * LIBDVDREAD INSTEAD
+ */
+#ifdef DVD_VIDEO
+
+#include "genisoimage.h"
+#include <fctldefs.h>
+#include <schily.h>
+
+#include "dvd_reader.h"
+
+struct dvd_file_s {
+	/* Basic information. */
+	dvd_reader_t	*dvd;
+
+	/* Calculated at open-time, size in blocks. */
+	ssize_t		filesize;
+};
+
+
+void		DVDCloseFile(dvd_file_t *dvd_file);
+static	dvd_file_t *DVDOpenFilePath(dvd_reader_t *dvd, char *filename);
+static	dvd_file_t *DVDOpenVOBPath(dvd_reader_t *dvd, int title, int menu);
+dvd_file_t *DVDOpenFile(dvd_reader_t *dvd, int titlenum, 
+								dvd_read_domain_t domain);
+static	dvd_reader_t *DVDOpenPath(const char *path_root);
+dvd_reader_t *DVDOpen(const char *path);
+void		DVDClose(dvd_reader_t *dvd);
+ssize_t		DVDFileSize(dvd_file_t *dvd_file);
+
+
+/*
+ * Free a DVD file
+ */
+void
+DVDCloseFile(dvd_file_t *dvd_file)
+{
+	free(dvd_file);
+	dvd_file = 0;
+}
+
+
+/*
+ * Stat a IFO or BUP file from a DVD directory tree.
+ */
+static dvd_file_t *
+DVDOpenFilePath(dvd_reader_t *dvd, char *filename)
+{
+
+	char		full_path[PATH_MAX + 1];
+	dvd_file_t	*dvd_file;
+	struct stat	fileinfo;
+
+	/* Get the full path of the file. */
+
+	snprintf(full_path, sizeof (full_path),
+				"%s/%s", dvd->path_root, filename);
+
+
+	dvd_file = (dvd_file_t *) e_malloc(sizeof (dvd_file_t));
+	if (!dvd_file)
+		return (0);
+	dvd_file->dvd = dvd;
+	dvd_file->filesize = 0;
+
+	if (stat(full_path, &fileinfo) < 0) {
+		free(dvd_file);
+		return (0);
+	}
+	dvd_file->filesize = fileinfo.st_size / DVD_VIDEO_LB_LEN;
+
+	return (dvd_file);
+}
+
+
+/*
+ * Stat a VOB file from a DVD directory tree.
+ */
+static dvd_file_t *
+DVDOpenVOBPath(dvd_reader_t *dvd, int title, int menu)
+{
+
+	char		filename[PATH_MAX + 1];
+	struct stat	fileinfo;
+	dvd_file_t	*dvd_file;
+	int		i;
+
+	dvd_file = (dvd_file_t *) e_malloc(sizeof (dvd_file_t));
+	if (!dvd_file)
+		return (0);
+	dvd_file->dvd = dvd;
+	dvd_file->filesize = 0;
+
+	if (menu) {
+		if (title == 0) {
+			snprintf(filename, sizeof (filename),
+				"%s/VIDEO_TS/VIDEO_TS.VOB", dvd->path_root);
+		} else {
+			snprintf(filename, sizeof (filename),
+				"%s/VIDEO_TS/VTS_%02i_0.VOB", dvd->path_root, title);
+		}
+		if (stat(filename, &fileinfo) < 0) {
+			free(dvd_file);
+			return (0);
+		}
+		dvd_file->filesize = fileinfo.st_size / DVD_VIDEO_LB_LEN;
+	} else {
+		for (i = 0; i < 9; ++i) {
+
+			snprintf(filename, sizeof (filename),
+				"%s/VIDEO_TS/VTS_%02i_%i.VOB", dvd->path_root, title, i + 1);
+			if (stat(filename, &fileinfo) < 0) {
+					break;
+			}
+
+			dvd_file->filesize += fileinfo.st_size / DVD_VIDEO_LB_LEN;
+		}
+	}
+
+	return (dvd_file);
+}
+
+/*
+ * Stat a DVD file from a DVD directory tree
+ */
+EXPORT dvd_file_t *
+DVDOpenFile(dvd_reader_t *dvd, int titlenum, dvd_read_domain_t domain)
+{
+	char		filename[MAX_UDF_FILE_NAME_LEN];
+
+	switch (domain) {
+
+	case DVD_READ_INFO_FILE:
+		if (titlenum == 0) {
+			snprintf(filename, sizeof (filename),
+					"/VIDEO_TS/VIDEO_TS.IFO");
+		} else {
+			snprintf(filename, sizeof (filename),
+					"/VIDEO_TS/VTS_%02i_0.IFO", titlenum);
+		}
+		break;
+
+	case DVD_READ_INFO_BACKUP_FILE:
+		if (titlenum == 0) {
+			snprintf(filename, sizeof (filename),
+					"/VIDEO_TS/VIDEO_TS.BUP");
+		} else {
+			snprintf(filename, sizeof (filename),
+					"/VIDEO_TS/VTS_%02i_0.BUP", titlenum);
+		}
+		break;
+
+	case DVD_READ_MENU_VOBS:
+		return (DVDOpenVOBPath(dvd, titlenum, 1));
+
+	case DVD_READ_TITLE_VOBS:
+		if (titlenum == 0)
+			return (0);
+		return (DVDOpenVOBPath(dvd, titlenum, 0));
+
+	default:
+#ifdef	USE_LIBSCHILY
+		errmsgno(EX_BAD, "Invalid domain for file open.\n");
+#else
+		fprintf(stderr, "Invalid domain for file open.\n");
+#endif
+		return (0);
+	}
+	return (DVDOpenFilePath(dvd, filename));
+}
+
+
+
+/*
+ * Stat a DVD directory structure
+ */
+static dvd_reader_t *
+DVDOpenPath(const char *path_root)
+{
+	dvd_reader_t	*dvd;
+
+	dvd = (dvd_reader_t *) e_malloc(sizeof (dvd_reader_t));
+	if (!dvd)
+		return (0);
+	dvd->path_root = strdup(path_root);
+
+	return (dvd);
+}
+
+
+/*
+ * Stat a DVD structure - this one only works with directory structures
+ */
+dvd_reader_t *
+DVDOpen(const char *path)
+{
+	struct stat	fileinfo;
+	int		ret;
+
+	if (!path)
+		return (0);
+
+	ret = stat(path, &fileinfo);
+	if (ret < 0) {
+	/* If we can't stat the file, give up */
+#ifdef	USE_LIBSCHILY
+		errmsg("Can't stat %s\n", path);
+#else
+		fprintf(stderr, "Can't stat %s\n", path);
+		perror("");
+#endif
+		return (0);
+	}
+
+
+	if (S_ISDIR(fileinfo.st_mode)) {
+		return (DVDOpenPath(path));
+	}
+
+	/* If it's none of the above, screw it. */
+#ifdef	USE_LIBSCHILY
+	errmsgno(EX_BAD, "Could not open %s\n", path);
+#else
+	fprintf(stderr, "Could not open %s\n", path);
+#endif
+	return (0);
+}
+
+/*
+ * Free a DVD structure - this one will only close a directory tree
+ */
+void
+DVDClose(dvd_reader_t *dvd)
+{
+	if (dvd) {
+		if (dvd->path_root) free(dvd->path_root);
+		free(dvd);
+		dvd = 0;
+	}
+}
+
+
+
+/*
+ * Return the size of a DVD file
+ */
+ssize_t
+DVDFileSize(dvd_file_t *dvd_file)
+{
+	return (dvd_file->filesize);
+}
+
+#endif /* DVD_VIDEO */