From 780cd3d52f1ca4654d62ec7a30902bd6fc83e597 Mon Sep 17 00:00:00 2001
From: Klaus Schmidinger <vdr@tvdr.de>
Date: Sat, 28 Jul 2001 11:26:45 +0200
Subject: [PATCH] Avoiding audio/video distortions in 'Transfer Mode'

---
 HISTORY  | 3 ++-
 dvbapi.c | 7 +++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/HISTORY b/HISTORY
index 09698be0..e782f354 100644
--- a/HISTORY
+++ b/HISTORY
@@ -570,7 +570,7 @@ Video Disk Recorder Revision History
 - Fixed handling a channel group separator at the very beginning of the
   'channels.conf' file.
 
-2001-07-27: Version 0.85
+2001-07-29: Version 0.85
 
 - Added Norwegian language texts (thanks to Jørgen Tvedt).
 - Increased the usleep value in cDvbOsd::Cmd() to 5000 in order to work on
@@ -586,3 +586,4 @@ Video Disk Recorder Revision History
 - DiSEqC support can now be generally enabled/disabled in the Setup menu. This
   may be necessary if your multiswitch gets irritated by the default DiSEqC
   codes '0' (thanks to Markus Lang).
+- Avoiding audio/video distortions in 'Transfer Mode'.
diff --git a/dvbapi.c b/dvbapi.c
index 4fa5589d..fbb8b62d 100644
--- a/dvbapi.c
+++ b/dvbapi.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: dvbapi.c 1.90 2001/07/27 13:33:56 kls Exp $
+ * $Id: dvbapi.c 1.91 2001/07/28 11:23:59 kls Exp $
  */
 
 #include "dvbapi.h"
@@ -1163,8 +1163,10 @@ void cTransferBuffer::Output(void)
   uchar b[MINVIDEODATA];
   while (Busy()) {
         if (!gotBufferReserve) {
-           if (Available() < MAXFRAMESIZE)
+           if (Available() < MAXFRAMESIZE) {
               usleep(100000); // allow the buffer to collect some reserve
+              continue;
+              }
            else
               gotBufferReserve = true;
            }
@@ -2256,6 +2258,7 @@ bool cDvbApi::SetChannel(int ChannelNumber, int FrequencyMHz, char Polarization,
      if (CaDvbApi) {
         if (!CaDvbApi->Recording()) {
            if (CaDvbApi->SetChannel(ChannelNumber, FrequencyMHz, Polarization, Diseqc, Srate, Vpid, Apid1, Apid2, Dpid1, Dpid2, Tpid, Ca, Pnr)) {
+              usleep(500000); // avoids distortions (apparently switching into replay mode immediately after tuning causes problems)
               SetModeReplay();
               transferringFromDvbApi = CaDvbApi->StartTransfer(fd_video);
               }