[src/trunk]: src/usr.bin/audio/record WAV seems to be signed only; convert un...

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/beb25d32029b
branches:  trunk
changeset: 520761:beb25d32029b
user:      mrg <mrg%NetBSD.org@localhost>
date:      Tue Jan 15 17:17:13 2002 +0000

description:
WAV seems to be signed only; convert unsigned samples.

diffstat:

 usr.bin/audio/record/record.c |  19 ++++++++++++++-----
 1 files changed, 14 insertions(+), 5 deletions(-)

diffs (42 lines):

diff -r 943f0fd3f28e -r beb25d32029b usr.bin/audio/record/record.c
--- a/usr.bin/audio/record/record.c     Tue Jan 15 17:10:06 2002 +0000
+++ b/usr.bin/audio/record/record.c     Tue Jan 15 17:17:13 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: record.c,v 1.19 2002/01/15 17:02:52 mrg Exp $  */
+/*     $NetBSD: record.c,v 1.20 2002/01/15 17:17:13 mrg Exp $  */
 
 /*
  * Copyright (c) 1999 Matthew R. Green
@@ -462,19 +462,28 @@
        /*
         * we could try to support RIFX but it seems to be more portable
         * to output little-endian data for WAV files.
-        *
-        * XXX signed vs unsigned matters probably!  cope!
         */
        case AUDIO_ENCODING_ULINEAR_BE:
+               if (bps == 16)
+                       conv_func = change_sign16_swap_bytes_be;
+               else if (bps == 32)
+                       conv_func = change_sign32_swap_bytes_be;
+               goto fmt_pcm;
        case AUDIO_ENCODING_SLINEAR_BE:
                if (bps == 16)
                        conv_func = swap_bytes;
                else if (bps == 32)
                        conv_func = swap_bytes32;
+               goto fmt_pcm;
+       case AUDIO_ENCODING_ULINEAR_LE:
+               if (bps == 16)
+                       conv_func = change_sign16_le;
+               else if (bps == 32)
+                       conv_func = change_sign32_le;
                /* FALLTHROUGH */
+       case AUDIO_ENCODING_SLINEAR_LE:
        case AUDIO_ENCODING_PCM16:
-       case AUDIO_ENCODING_ULINEAR_LE:
-       case AUDIO_ENCODING_SLINEAR_LE:
+fmt_pcm:
                fmttag = WAVE_FORMAT_PCM;
                fmtsz = 16;
                align = channels * (bps / 8);