From: Volker Rümelin <vr_qemu@t-online.de>
Date: Sun, 10 Jan 2021 10:02:22 +0000 (+0100)
Subject: sdlaudio: fill remaining sample buffer with silence
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e02d178f78d7cff93c3c9b7e3c3ac6822c46c563;p=qemu.git

sdlaudio: fill remaining sample buffer with silence

Fill the remaining sample buffer with silence. To fill it with
zeroes is wrong for unsigned samples because this is silence
with a DC bias.

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 9315afe5-5958-c0b4-ea1e-14769511a9d5@t-online.de
Message-Id: <20210110100239.27588-6-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---

diff --git a/audio/sdlaudio.c b/audio/sdlaudio.c
index 79eed23849..01ae4c600e 100644
--- a/audio/sdlaudio.c
+++ b/audio/sdlaudio.c
@@ -235,7 +235,8 @@ static void sdl_callback (void *opaque, Uint8 *buf, int len)
 
     /* clear remaining buffer that we couldn't fill with data */
     if (len) {
-        memset(buf, 0, len);
+        audio_pcm_info_clear_buf(&hw->info, buf,
+                                 len / hw->info.bytes_per_frame);
     }
 }