FIXBIK: Add fixbik, a small utility to trim headers off EMI movies.

tools/fixbik.cpp

@@ -0,0 +1,104 @@
+/* ResidualVM - A 3D game interpreter
+ *
+ * ResidualVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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.
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+
+// The movies included with EMI have a SMUSH header, but will play fine in
+// mplayer without it. This simple utility just takes off the header.
+
+#define BUF_SZ 0x2000
+int main(int argc, char **argv) {
+ FILE *rfd, *wfd;
+ uint32_t consumed = 0;
+ uint32_t i = 0;
+ unsigned char buf[BUF_SZ];
+ uint32_t bik_start = 0;
+
+ if (argc != 3) {
+ printf("Usage:\n\tfix_bik <Movie File> <Output File>\n");
+ return -1;
+ }
+
+ // Clear the buffer memory
+ memset(buf, 0, BUF_SZ);
+
+ // Open the files
+ rfd = fopen(argv[1], "r");
+ if (!rfd) {
+ printf("Unable to open the movie file: %s\n", argv[1]);
+ return -1;
+ }
+ wfd = fopen(argv[2], "w");
+ if (!rfd) {
+ printf("Unable to open the output file for writing: %s\n", argv[2]);
+ return -1;
+ }
+
+ // Read the first 5 bytes of the header
+ fread(buf, 5, 1, rfd);
+ buf[5] = 0;
+
+ // If the first 5 bytes are SMUSH, find the start of the BIK header
+ if (!strncmp((const char *)buf, "SMUSH", 5)) {
+ fread(buf, 16, 1, rfd);
+ consumed += 16;
+
+ // Decode the first part
+ for (i=0; i<consumed; i++) {
+ buf[i] ^= 0xd2;
+ }
+
+ // Get the SMUSH Header Length
+ sscanf((const char *)buf, "%u", &bik_start);
+
+ if (bik_start > BUF_SZ) {
+ printf("SMUSH Header doesn't make sense, refusing to go further\n");
+ return -1;
+ }
+ }
+
+ // Seek to the start of the BIK movie
+ fseek(rfd, bik_start, SEEK_SET);
+
+ // Read the BIK header
+ fread(buf, 3, 1, rfd);
+ buf[3] = 0;
+
+ // Sanity check to make sure we found the movie data
+ if (!strncmp((const char *)buf, "BIK", 3)) {
+ fseek(rfd, -3, SEEK_CUR);
+ } else {
+ printf("No BIK header found, possibly not a BINK file?\n");
+ }
+
+ // Read the BIK into the output file
+ while (!feof(rfd)) {
+ fread(buf, BUF_SZ, 1, rfd);
+ fwrite(buf, BUF_SZ, 1, wfd);
+ }
+
+ fclose(rfd);
+ fclose(wfd);
+ return 0;
+}

tools/module.mk

@@ -24,7 +24,8 @@ MAKE := \
  patchex \
  diffr \
  patchr \
- bm2bmp
+ bm2bmp \
+ fixbik
 
 # these below are not added because they depend on the ppm and bpm libraries
 # mat2ppm
@@ -120,4 +121,8 @@ TOOL := bm2bmp
 TOOL_OBJS := bm2bmp.o lab.o
 include $(srcdir)/rules.mk
 
+TOOL := fixbik
+TOOL_OBJS := fixbik.o
+include $(srcdir)/rules.mk
+
 .PHONY: clean-tools tools