Don't let make write the filename into the output

[paraslash.git] / wav_filter.c

diff --git a/wav_filter.c b/wav_filter.c
index 3fce556d5d1ecb514b0cffeec869103ff0bec178..b7329c48bce647b113638a5609b39de698ef81fd 100644 (file)
--- a/wav_filter.c
+++ b/wav_filter.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2008 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2009 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -10,6 +10,7 @@
 
 #include "list.h"
 #include "sched.h"
+#include "ggo.h"
 #include "filter.h"
 #include "string.h"
 #include "portable_io.h"
@@ -37,15 +38,15 @@ static void make_wav_header(unsigned int channels, unsigned int samplerate,
        write_u32(headbuf + 4, size - 8);
        memcpy(headbuf + 8, "WAVE", 4);
        memcpy(headbuf + 12, "fmt ", 4);
-       write_u32(headbuf + 16, 16);
-       write_u16(headbuf + 20, 1);     /* format */
+       write_u32(headbuf + 16, 16); /* 16 + extra format bytes (zero) */
+       write_u16(headbuf + 20, 1);     /* format (1 == PCM/uncompressed) */
        write_u16(headbuf + 22, channels);
        write_u32(headbuf + 24, samplerate);
        write_u32(headbuf + 28, bytespersec);
-       write_u16(headbuf + 32, align);
-       write_u16(headbuf + 34, BITS);
-       memcpy(headbuf + 36, "data", 4);
-       write_u32(headbuf + 40, size - 44);
+       write_u16(headbuf + 32, align); /* number of bytes per sample slice */
+       write_u16(headbuf + 34, BITS); /* significant bits per sample */
+       memcpy(headbuf + 36, "data", 4); /* chunk ID */
+       write_u32(headbuf + 40, size - 44); /* chunk size */
 }
 
 static ssize_t wav_convert(char *inbuf, size_t len, struct filter_node *fn)