X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=wav_filter.c;h=b7329c48bce647b113638a5609b39de698ef81fd;hp=3fce556d5d1ecb514b0cffeec869103ff0bec178;hb=eb51951a61a641ef0c403c3c6df560f29b8c5468;hpb=9262809551df9548f65b90490404ff0e2e4bfcc7

diff --git a/wav_filter.c b/wav_filter.c
index 3fce556d..b7329c48 100644
--- 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)