From 4c1c57fcc889d4e24fad79ee90d02f663db8cd2e Mon Sep 17 00:00:00 2001
From: wang-bin <wbsecg1@gmail.com>
Date: Sun, 20 Jan 2013 14:33:55 +0800
Subject: [PATCH] ignore if pause state not changed

---
 src/AVDemuxThread.cpp | 2 ++
 src/AVOutput.cpp      | 2 ++
 src/AVThread.cpp      | 2 ++
 3 files changed, 6 insertions(+)

diff --git a/src/AVDemuxThread.cpp b/src/AVDemuxThread.cpp
index adc6fdd7..e937c3a0 100644
--- a/src/AVDemuxThread.cpp
+++ b/src/AVDemuxThread.cpp
@@ -115,6 +115,8 @@ void AVDemuxThread::stop()
 
 void AVDemuxThread::pause(bool p)
 {
+    if (paused == p)
+        return;
     paused = p;
     if (!paused)
         cond.wakeAll();
diff --git a/src/AVOutput.cpp b/src/AVOutput.cpp
index afd384ad..0c4de03f 100644
--- a/src/AVOutput.cpp
+++ b/src/AVOutput.cpp
@@ -54,6 +54,8 @@ bool AVOutput::isAvailable() const
 void AVOutput::pause(bool p)
 {
     DPTR_D(AVOutput);
+    if (d.paused == p)
+        return;
     d.paused = p;
     if (!d.paused)
         d.cond.wakeAll();
diff --git a/src/AVThread.cpp b/src/AVThread.cpp
index 05b6e38a..1f819808 100644
--- a/src/AVThread.cpp
+++ b/src/AVThread.cpp
@@ -55,6 +55,8 @@ void AVThread::stop()
 void AVThread::pause(bool p)
 {
     DPTR_D(AVThread);
+    if (d.paused == p)
+        return;
     d.paused = p;
     if (!d.paused) {
         qDebug("wake up paused thread");