From e63ad51dabc0404da2a4dd06e4bc1efddc1dbaf8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Wed, 21 Jan 2015 09:37:30 +0100
Subject: [PATCH] audiosrc: Fill in the correct silence

For unsigned raw formats this is not all zeroes, and for non-raw formats
we just continue to assume all zeroes for now.

https://bugzilla.gnome.org/show_bug.cgi?id=739446
---
 gst-libs/gst/audio/gstaudiosrc.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/gst-libs/gst/audio/gstaudiosrc.c b/gst-libs/gst/audio/gstaudiosrc.c
index 197ab1722e..888fdf2c4a 100644
--- a/gst-libs/gst/audio/gstaudiosrc.c
+++ b/gst-libs/gst/audio/gstaudiosrc.c
@@ -393,7 +393,14 @@ gst_audio_src_ring_buffer_acquire (GstAudioRingBuffer * buf,
     goto could_not_open;
 
   buf->size = spec->segtotal * spec->segsize;
-  buf->memory = g_malloc0 (buf->size);
+  buf->memory = g_malloc (buf->size);
+  if (buf->spec.type == GST_AUDIO_RING_BUFFER_FORMAT_TYPE_RAW) {
+    gst_audio_format_fill_silence (buf->spec.info.finfo, buf->memory,
+        buf->size);
+  } else {
+    /* FIXME, non-raw formats get 0 as the empty sample */
+    memset (buf->memory, 0, buf->size);
+  }
 
   abuf = GST_AUDIO_SRC_RING_BUFFER (buf);
   abuf->running = TRUE;