From fcba41e2e4752d6391c76ef4e2c9f0c8c5734159 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Mon, 21 Nov 2016 18:31:32 +0100
Subject: [PATCH] audio: fix --audio-stream-silence with ao_alsa

ao_alsa.c calls this before the common code sets ao->sstride.

Other than this, I'm still not sure whether this works. Seems like no,
or depends.
---
 audio/out/push.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/audio/out/push.c b/audio/out/push.c
index 68606386f2..555a7867da 100644
--- a/audio/out/push.c
+++ b/audio/out/push.c
@@ -453,8 +453,9 @@ int ao_play_silence(struct ao *ao, int samples)
     assert(ao->api == &ao_api_push);
     if (samples <= 0 || !af_fmt_is_pcm(ao->format) || !ao->driver->play)
         return 0;
-    char *p = talloc_size(NULL, samples * ao->sstride);
-    af_fill_silence(p, samples * ao->sstride, ao->format);
+    int bytes = af_fmt_to_bytes(ao->format) * samples * ao->channels.num;
+    char *p = talloc_size(NULL, bytes);
+    af_fill_silence(p, bytes, ao->format);
     void *tmp[MP_NUM_CHANNELS];
     for (int n = 0; n < MP_NUM_CHANNELS; n++)
         tmp[n] = p;