From 7be3e8694b2a4d2ab0b9c9af38100734ca14f149 Mon Sep 17 00:00:00 2001
From: reimar <reimar@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Thu, 19 Jul 2007 19:15:59 +0000
Subject: [PATCH] Somewhat hackish fix for A-V desync with ao_oss and frame
 stepping: send 0-samples according to the amount of data lost during pause.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@23829 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 libao2/ao_oss.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/libao2/ao_oss.c b/libao2/ao_oss.c
index 35fcfd6e6c..b9939de8b7 100644
--- a/libao2/ao_oss.c
+++ b/libao2/ao_oss.c
@@ -147,6 +147,7 @@ static int oss2format(int format)
 static char *dsp=PATH_DEV_DSP;
 static audio_buf_info zz;
 static int audio_fd=-1;
+static int prepause_space;
 
 static const char *oss_mixer_device = PATH_DEV_MIXER;
 static int oss_mixer_channel = SOUND_MIXER_PCM;
@@ -448,13 +449,21 @@ static void reset(void){
 // stop playing, keep buffers (for pause)
 static void audio_pause(void)
 {
+    prepause_space = get_space();
     uninit(1);
 }
 
 // resume playing, after audio_pause()
 static void audio_resume(void)
 {
+    int fillcnt;
     reset();
+    fillcnt = get_space() - prepause_space;
+    if (fillcnt > 0) {
+      void *silence = calloc(fillcnt, 1);
+      play(silence, fillcnt, 0);
+      free(silence);
+    }
 }