Fixed playing files with PES packets longer than 2048 byte through the full featured DVB card

CONTRIBUTORS

@@ -1214,3 +1214,7 @@ Achim Tuffentsammer <a.tuffentsammer@web.de>
 
 Michael Heyse <mhk@designassembly.de>
  for his help in keeping 'channels.conf.terr' up to date
+
+Marco Kremer <vdr.hgm.bg@gmx.net>
+ for reporting a problem with playing files with PES packets longer than 2048 byte
+ through the full featured DVB card

HISTORY

@@ -3308,3 +3308,6 @@ Video Disk Recorder Revision History
 - Added 'channels.conf.terr' entries for Mainz (thanks to Michael Heyse).
 - Implemented cDolbyRepacker for better handling of Dolby Digital PES packets
   (thanks to Reinhard Nissl).
+- Fixed playing files with PES packets longer than 2048 byte through the full
+  featured DVB card (thanks to Marco Kremer for reporting this one and providing
+  a test sample).

dvbdevice.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: dvbdevice.c 1.114 2005/01/14 14:00:44 kls Exp $
+ * $Id: dvbdevice.c 1.115 2005/01/16 11:59:21 kls Exp $
  */
 
 #include "dvbdevice.h"
@@ -1130,12 +1130,12 @@ bool cDvbDevice::Flush(int TimeoutMs)
 
 int cDvbDevice::PlayVideo(const uchar *Data, int Length)
 {
-  return write(fd_video, Data, Length);
+  return WriteAllOrNothing(fd_video, Data, Length, 1000, 10);
 }
 
 int cDvbDevice::PlayAudio(const uchar *Data, int Length)
 {
-  return write(fd_audio, Data, Length);
+  return WriteAllOrNothing(fd_audio, Data, Length, 1000, 10);
 }
 
 bool cDvbDevice::OpenDvr(void)

tools.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: tools.c 1.87 2005/01/04 11:06:45 kls Exp $
+ * $Id: tools.c 1.88 2005/01/16 11:47:44 kls Exp $
  */
 
 #include "tools.h"
@@ -65,6 +65,30 @@ void writechar(int filedes, char c)
   safe_write(filedes, &c, sizeof(c));
 }
 
+int WriteAllOrNothing(int fd, const uchar *Data, int Length, int TimeoutMs, int RetryMs)
+{
+  int written = 0;
+  while (Length > 0) {
+        int w = write(fd, Data + written, Length);
+        if (w > 0) {
+           Length -= w;
+           written += w;
+           }
+        else if (written > 0 && !FATALERRNO) {
+           // we've started writing, so we must finish it!
+           cTimeMs t;
+           cPoller Poller(fd, true);
+           Poller.Poll(RetryMs);
+           if (TimeoutMs > 0 && (TimeoutMs -= t.Elapsed()) <= 0)
+              break;
+           }
+        else
+           // nothing written yet (or fatal error), so we can just return the error code:
+           return w;
+        }
+  return written;
+}
+
 char *strcpyrealloc(char *dest, const char *src)
 {
   if (src) {

tools.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: tools.h 1.64 2005/01/04 11:09:51 kls Exp $
+ * $Id: tools.h 1.65 2005/01/16 11:39:58 kls Exp $
  */
 
 #ifndef __TOOLS_H
@@ -71,6 +71,10 @@ public:
 ssize_t safe_read(int filedes, void *buffer, size_t size);
 ssize_t safe_write(int filedes, const void *buffer, size_t size);
 void writechar(int filedes, char c);
+int WriteAllOrNothing(int fd, const uchar *Data, int Length, int TimeoutMs = 0, int RetryMs = 0);
+    ///< Writes either all Data to the given file descriptor, or nothing at all.
+    ///< If TimeoutMs is greater than 0, it will only retry for that long, otherwise
+    ///< it will retry forever. RetryMs defines the time between two retries.
 char *strcpyrealloc(char *dest, const char *src);
 char *strn0cpy(char *dest, const char *src, size_t n);
 char *strreplace(char *s, char c1, char c2);