Added preliminary video (VPID) and audio (APID1) bitrate calculations.

HISTORY

@@ -8,3 +8,7 @@ VDR Plugin 'femon' Revision History
 2004-02-23: Version 0.0.1b
 
 - Fixed cThread to work under vdr-1.2.6.
+
+2004-02-26: Version 0.0.2
+
+- Added preliminary video (VPID) and audio (APID1) bitrate calculations.

Makefile

@@ -46,7 +46,7 @@ DEFINES += -D_GNU_SOURCE -DPLUGIN_NAME_I18N='"$(PLUGIN)"'
 
 ### The object files (add further files here):
 
-OBJS = femon.o femonosd.o femoncfg.o femoni18n.o
+OBJS = femon.o femonosd.o femonreceiver.o femoncfg.o femoni18n.o
 
 ### Implicit rules:
 

README

@@ -25,7 +25,9 @@ The plugin is based on a neat console frontend status monitor application called
 further information). The other parts of plugin code are borrowed from the 
 excellent OSD Picture-In-Picture plugin by Sascha Volkenandt <sascha@akv-soft.de>
 and Andreas Regel <andreas.regel@powarman.de>. Props to Sascha for being brave
-enough to test this piece of junk and ofcourse for german translations.
+enough to test this piece of junk and ofcourse for german translations. The bitrate
+calculation algorithm is copied from dvbstream application by Dave Chapman
+<dave@dchapman.com>.
 
 Shortcomings / Todo list:
 
@@ -38,4 +40,3 @@ Shortcomings / Todo list:
 - Sometimes (read always) ttxtsubs plugin messes up the OSD - user should disable
   ttxtsubs, but closing and reopening the femon plugin might help as well. BTW. the
   same things happens with OSDTeletext plugin too :)
-- Where's the bitrate!?

femon.c

@@ -76,7 +76,7 @@ cMenuFemonSetup::cMenuFemonSetup(void)
 {
   Add(new cMenuEditBoolItem(tr("Hide Mainmenu Entry"),    &femonConfig.hidemenu,   tr("no"), tr("yes")));
   Add(new cMenuEditBoolItem(tr("Position"),               &femonConfig.position,   tr("bottom"), tr("top")));
-  Add(new cMenuEditIntItem( tr("Update Interval [0.1s]"), &femonConfig.interval,   1, 20));
+  Add(new cMenuEditIntItem( tr("Update Interval [0.1s]"), &femonConfig.interval,   5, 50));
   Add(new cMenuEditIntItem( tr("Red Limit [%]"),          &femonConfig.redlimit,   1, 50));
   Add(new cMenuEditIntItem( tr("Green Limit [%]"),        &femonConfig.greenlimit, 51, 100));
 }

femon.h

@@ -4,7 +4,7 @@
 #include <vdr/plugin.h>
 #include "femoncfg.h"
 
-static const char *VERSION        = "0.0.1b";
+static const char *VERSION        = "0.0.2";
 static const char *DESCRIPTION    = "DVB Signal Quality Monitor (OSD)";
 static const char *MAINMENUENTRY  = "Signal Quality";
 

femoncfg.c

@@ -14,7 +14,7 @@ cFemonConfig::cFemonConfig(void)
 {
   hidemenu   = 0;
   position   = 1;
-  interval   = 5;
+  interval   = 10;
   redlimit   = 33;
   greenlimit = 66;
 }

femonosd.c

@@ -6,10 +6,10 @@
  * $Id$
  */
 
-#include "femonosd.h"
 #include "femoncfg.h"
+#include "femonosd.h"
 
-#define FEMON_DEVICE "/dev/dvb/adapter%d/frontend%d"
+#define FE_DEVICE  "/dev/dvb/adapter%d/frontend%d"
 #define CHANNELINPUT_TIMEOUT 1000
 #define CHANNELINFO_TIMEOUT  5000
 #define OSDHEIGHT 5
@@ -24,6 +24,7 @@ cFemonOsd::cFemonOsd(void)
   //printf("cFemonOsd::cFemonOsd()\n");
   m_Osd = NULL;
   m_Window = -1;
+  m_Receiver = NULL;
   m_Frontend = -1;
   m_Active = false;
   m_Number = 0;
@@ -42,6 +43,8 @@ cFemonOsd::~cFemonOsd(void)
      m_Active = false;
      Cancel(3);
      }
+  if (m_Receiver)
+     delete m_Receiver;
   if (m_Osd)
      delete m_Osd;
 }
@@ -54,6 +57,8 @@ void cFemonOsd::Action(void)
   uint32_t ber, unc;
   fe_status_t fe_status;
   char buf[128];
+  double VRate = 0.0;
+  double ARate = 0.0;
 
   m_Active = true;
   while (m_Active) {
@@ -68,9 +73,24 @@ void cFemonOsd::Action(void)
 #if (VDRVERSNUM >= 10300) || defined(ELCHIAIOVERSION)
           eDvbFont OldFont = m_Osd->SetFont(fontSml);
 #endif
-          sprintf(buf, "%d - %s", cDevice::CurrentChannel(), Channels.GetByNumber(cDevice::CurrentChannel())->Name());
+          sprintf(buf, "%d %s", cDevice::CurrentChannel(), Channels.GetByNumber(cDevice::CurrentChannel())->Name());
           m_Osd->Fill(0, 0, m_Width, cOsd::LineHeight() - 1, clrWhite, m_Window);
           m_Osd->Text(cOsd::CellWidth(), 0, buf, clrBlack, clrWhite, m_Window);
+          if (m_Receiver) {
+             // do some averaging to smooth the value
+             VRate = (VRate + (m_Receiver->VideoPacketCount() * 184.0 * 8.0) / (femonConfig.interval * 102.4 * 1024.0)) / 2.0;
+             ARate = (ARate + (m_Receiver->AudioPacketCount() * 184.0 * 8.0) / (femonConfig.interval * 102.4 * 1024.0)) / 2.0;
+             sprintf(buf, "V: %.1f Mbit/s\n", VRate);
+#if (VDRVERSNUM >= 10300) || defined(ELCHIAIOVERSION)
+             m_Osd->Text((m_Width - 20 * cOsd::CellWidth()), 0, buf, clrBlack, clrWhite, m_Window);
+             sprintf(buf, "A: %.1f Mbit/s\n", ARate);
+             m_Osd->Text((m_Width - 10 * cOsd::CellWidth()), 0, buf, clrBlack, clrWhite, m_Window);
+#else
+             m_Osd->Text((m_Width - 22 * cOsd::CellWidth()), 0, buf, clrBlack, clrWhite, m_Window);
+             sprintf(buf, "A: %.1f Mbit/s\n", ARate);
+             m_Osd->Text((m_Width - 11 * cOsd::CellWidth()), 0, buf, clrBlack, clrWhite, m_Window);
+#endif
+             }
           sprintf(buf, "STR: %04x", signal);
           m_Osd->Text(cOsd::CellWidth(), 3 * cOsd::LineHeight(), buf, clrWhite, clrBackground, m_Window);
           sprintf(buf, "SNR: %04x", snr);
@@ -129,10 +149,10 @@ void cFemonOsd::Action(void)
 void cFemonOsd::Show(void)
 {
   //printf("cFemonOsd::Show()\n");
-  char *fedev = NULL;
-  asprintf(&fedev, FEMON_DEVICE, cDevice::ActualDevice()->CardIndex(), 0); // only the first frontend supported
-  m_Frontend = open(fedev, O_RDONLY | O_NONBLOCK);
-  free(fedev);
+  char *dev = NULL;
+  asprintf(&dev, FE_DEVICE, cDevice::ActualDevice()->CardIndex(), 0);
+  m_Frontend = open(dev, O_RDONLY | O_NONBLOCK);
+  free(dev);
   if (m_Frontend < 0) {
      isyslog("cFemonOsd::Show() cannot open frontend device.");
      m_Frontend = -1;
@@ -142,6 +162,7 @@ void cFemonOsd::Show(void)
      isyslog("cFemonOsd::Show() cannot read frontend info.");
      m_Frontend = -1;
      close(m_Frontend);
+     return;
      }
   m_InfoTime = time_ms();
   m_Osd = cOsd::OpenRaw(m_Xpos, m_Ypos);
@@ -157,6 +178,10 @@ void cFemonOsd::Show(void)
      m_Osd->AddColor(clrTransparent, m_Window);
      m_Osd->Clear(m_Window);
      m_Osd->Flush();
+     if (m_Receiver)
+        delete m_Receiver;
+     m_Receiver = new cFemonReceiver(Channels.GetByNumber(cDevice::CurrentChannel())->Ca(), Channels.GetByNumber(cDevice::CurrentChannel())->Vpid(), Channels.GetByNumber(cDevice::CurrentChannel())->Apid1());
+     cDevice::ActualDevice()->AttachReceiver(m_Receiver);
      Start();
      }
 }
@@ -164,12 +189,11 @@ void cFemonOsd::Show(void)
 void cFemonOsd::ChannelSwitch(const cDevice * device, int channelNumber)
 {
   //printf("cFemonOsd::ChannelSwitch()\n");
-  char *fedev = NULL;
-
+  char *dev = NULL;
   close(m_Frontend);
-  asprintf(&fedev, FEMON_DEVICE, cDevice::ActualDevice()->CardIndex(), 0); // only the first frontend$
-  m_Frontend = open(fedev, O_RDONLY | O_NONBLOCK);
-  free(fedev);
+  asprintf(&dev, FE_DEVICE, cDevice::ActualDevice()->CardIndex(), 0); // only the first frontend$
+  m_Frontend = open(dev, O_RDONLY | O_NONBLOCK);
+  free(dev);
   if (m_Frontend < 0) {
      isyslog("cFemonOsd::ChannelSwitch() cannot open frontend device.");
      m_Frontend = -1;
@@ -180,6 +204,10 @@ void cFemonOsd::ChannelSwitch(const cDevice * device, int channelNumber)
      m_Frontend = -1;
      close(m_Frontend);
      }
+  if (m_Receiver)
+     delete m_Receiver;
+  m_Receiver = new cFemonReceiver(Channels.GetByNumber(cDevice::CurrentChannel())->Ca(), Channels.GetByNumber(cDevice::CurrentChannel())->Vpid(), Channels.GetByNumber(cDevice::CurrentChannel())->Apid1());
+  cDevice::ActualDevice()->AttachReceiver(m_Receiver);
   m_InfoTime = time_ms();
 }
 

femonosd.h

@@ -9,12 +9,14 @@
 #include <vdr/status.h>
 #include <vdr/channels.h>
 #include <vdr/font.h>
+#include "femonreceiver.h"
 
 class cFemonOsd : public cOsdObject, public cThread, public cStatus {
 private:
   bool m_Active;
   cOsdBase *m_Osd;
   tWindowHandle m_Window;
+  cFemonReceiver *m_Receiver;
   int m_Frontend;
   struct dvb_frontend_info m_FrontendInfo;
   int m_Number;

femonreceiver.c

@@ -0,0 +1,59 @@
+/*
+ * A Frontend Monitor plugin for the Video Disk Recorder
+ *
+ * See the README file for copyright information and how to reach the author.
+ *
+ * $Id$
+ */
+
+#include "femonreceiver.h"
+
+#define TS_SIZE 188
+
+cFemonReceiver::cFemonReceiver(int Ca, int Vpid, int Apid)
+:cReceiver(Ca, -1, 2, Vpid, Apid)
+{
+  //printf("cFemonReceiver::cFemonReceiver()\n");
+  m_VPid = Vpid;
+  m_APid = Apid;
+  m_VideoCount = 0;
+  m_AudioCount = 0;
+}
+ 
+cFemonReceiver::~cFemonReceiver(void)
+{
+  //printf("cFemonReceiver::~cFemonReceiver()\n");
+}
+
+void cFemonReceiver::Activate(bool On)
+{
+  //printf("cFemonReceiver::Activate()\n");
+}
+
+void cFemonReceiver::Receive(uchar *Data, int Length)
+{
+  //printf("cFemonReceiver::Receive()\n");
+  if (Length == TS_SIZE) {
+     int pid = ((Data[1]&0x1f) << 8) | (Data[2]);
+     if (pid == m_VPid)
+        m_VideoCount++;
+     if (pid == m_APid)
+        m_AudioCount++;
+     }
+}
+
+int cFemonReceiver::VideoPacketCount(void)
+{
+  //printf("cFemonReceiver::VideoPacketCount()\n");
+  int count = m_VideoCount;
+  m_VideoCount = 0;
+  return count;
+}
+
+int cFemonReceiver::AudioPacketCount(void)
+{
+  //printf("cFemonReceiver::AudioPacketCount()\n");
+  int count = m_AudioCount;
+  m_AudioCount = 0;
+  return count;
+}

femonreceiver.h

@@ -0,0 +1,26 @@
+#ifndef __FEMONRECEIVER_H
+#define __FEMONRECEIVER_H
+
+#include <vdr/receiver.h>
+
+class cFemonReceiver : public cReceiver {
+private:
+  int m_VPid;
+  int m_APid;
+  int m_VideoCount;
+  int m_AudioCount;
+
+protected:
+  virtual void Activate(bool On);
+  virtual void Receive(uchar *Data, int Length);
+
+public:
+  cFemonReceiver(int Ca, int Vpid, int Apid);
+  virtual ~cFemonReceiver();
+
+  int VideoPacketCount(void);
+  int AudioPacketCount(void);
+  };
+
+#endif //__FEMONRECEIVER_H
+