From 3f492c4f5732abdb15a193fb610a9a73115a4972 Mon Sep 17 00:00:00 2001
From: Klaus Schmidinger <vdr@tvdr.de>
Date: Sun, 19 Apr 2009 11:07:07 +0200
Subject: [PATCH] Implemented TsSetTeiOnBrokenPackets()

---
 CONTRIBUTORS |  1 +
 HISTORY      |  5 +++++
 cutter.c     | 10 +++++++---
 remux.c      | 24 +++++++++++++++++++++++-
 remux.h      |  5 ++++-
 5 files changed, 40 insertions(+), 5 deletions(-)

diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 4d433c75..62061156 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -670,6 +670,7 @@ Oliver Endriss <o.endriss@gmx.de>
  for adding missing AUDIO_PAUSE/AUDIO_CONTINUE calls to cDvbDevice
  for reporting that the video type is unnecessarily written into channels.conf if
  VPID is 0
+ for reporting chirping sound disturbences at editing points in TS recordings
 
 Reinhard Walter Buchner <rw.buchner@freenet.de>
  for adding some satellites to 'sources.conf'
diff --git a/HISTORY b/HISTORY
index 232cd63f..5b7ee097 100644
--- a/HISTORY
+++ b/HISTORY
@@ -6049,3 +6049,8 @@ Video Disk Recorder Revision History
 - Fixed detecting the frame rate for streams with PTS distances of 1800, which
   apparently split one frame over two payload units.
 - Added missing 'const' to cRecording::FramesPerSecond() (thanks to Joachim Wilke).
+- Any TS packets in the first "frame" after a cut in an edited recording that don't
+  belong to a payload unit that started in that frame now get their TEI flag set,
+  so that a decoder will ignore them together with any PES data collected for that
+  PID so far (thanks to Oliver Endriss for reporting chirping sound disturbences at
+  editing points in TS recordings).
diff --git a/cutter.c b/cutter.c
index 73ac873f..e83c5ac1 100644
--- a/cutter.c
+++ b/cutter.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: cutter.c 2.2 2009/01/24 15:19:26 kls Exp $
+ * $Id: cutter.c 2.3 2009/04/19 10:56:33 kls Exp $
  */
 
 #include "cutter.h"
@@ -18,6 +18,7 @@
 class cCuttingThread : public cThread {
 private:
   const char *error;
+  bool isPesRecording;
   cUnbufferedFile *fromFile, *toFile;
   cFileName *fromFileName, *toFileName;
   cIndexFile *fromIndex, *toIndex;
@@ -39,7 +40,7 @@ cCuttingThread::cCuttingThread(const char *FromFileName, const char *ToFileName)
   fromFileName = toFileName = NULL;
   fromIndex = toIndex = NULL;
   cRecording Recording(FromFileName);
-  bool isPesRecording = Recording.IsPesRecording();
+  isPesRecording = Recording.IsPesRecording();
   if (fromMarks.Load(FromFileName, Recording.FramesPerSecond(), isPesRecording) && fromMarks.Count()) {
      fromFileName = new cFileName(FromFileName, false, true, isPesRecording);
      toFileName = new cFileName(ToFileName, true, true, isPesRecording);
@@ -140,7 +141,10 @@ void cCuttingThread::Action(void)
               LastIFrame = 0;
 
               if (cutIn) {
-                 cRemux::SetBrokenLink(buffer, Length);
+                 if (isPesRecording)
+                    cRemux::SetBrokenLink(buffer, Length);
+                 else
+                    TsSetTeiOnBrokenPackets(buffer, Length);
                  cutIn = false;
                  }
               }
diff --git a/remux.c b/remux.c
index f428dcb2..10e5145c 100644
--- a/remux.c
+++ b/remux.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: remux.c 2.18 2009/04/18 14:53:42 kls Exp $
+ * $Id: remux.c 2.19 2009/04/19 10:59:56 kls Exp $
  */
 
 #include "remux.h"
@@ -124,6 +124,24 @@ int64_t TsGetPts(const uchar *p, int l)
   return -1;
 }
 
+void TsSetTeiOnBrokenPackets(uchar *p, int l)
+{
+  bool Processed[MAXPID] = { false };
+  while (l >= TS_SIZE) {
+        if (*p != TS_SYNC_BYTE)
+           break;
+        int Pid = TsPid(p);
+        if (!Processed[Pid]) {
+           if (!TsPayloadStart(p))
+              p[1] |= TS_ERROR;
+           else
+              Processed[Pid] = true;
+           }
+        l -= TS_SIZE;
+        p += TS_SIZE;
+        }
+}
+
 // --- cPatPmtGenerator ------------------------------------------------------
 
 cPatPmtGenerator::cPatPmtGenerator(cChannel *Channel)
@@ -582,6 +600,10 @@ cTsToPes::~cTsToPes()
 
 void cTsToPes::PutTs(const uchar *Data, int Length)
 {
+  if (TsError(Data)) {
+     Reset();
+     return; // ignore packets with TEI set, and drop any PES data collected so far
+     }
   if (TsPayloadStart(Data))
      Reset();
   else if (!size)
diff --git a/remux.h b/remux.h
index ccb38821..063acaa6 100644
--- a/remux.h
+++ b/remux.h
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: remux.h 2.9 2009/03/27 13:38:59 kls Exp $
+ * $Id: remux.h 2.10 2009/04/19 10:57:09 kls Exp $
  */
 
 #ifndef __REMUX_H
@@ -49,6 +49,8 @@ public:
 #define TS_ADAPT_TP_PRIVATE   0x02
 #define TS_ADAPT_EXTENSION    0x01
 
+#define MAXPID 0x2000 // for arrays that use a PID as the index
+
 inline bool TsHasPayload(const uchar *p)
 {
   return p[3] & TS_PAYLOAD_EXISTS;
@@ -104,6 +106,7 @@ inline int TsGetAdaptationField(const uchar *p)
 // The following functions all take a pointer to a sequence of complete TS packets.
 
 int64_t TsGetPts(const uchar *p, int l);
+void TsSetTeiOnBrokenPackets(uchar *p, int l);
 
 // Some PES handling tools:
 // The following functions that take a pointer to PES data all assume that