1 files changed, 88 insertions, 0 deletions
diff --git a/audio.cpp b/audio.cpp
new file mode 100644
index 0000000..d34ceae
--- /dev/null
+++ b/audio.cpp
@@ -0,0 +1,88 @@
+/*
+ * audio.cpp: A plugin for the Video Disk Recorder
+ *
+ * See the README file for copyright information and how to reach the author.
+ *
+ * $Id$
+ */
+
+#include "audio.h"
+
+cMarkAdAudio::cMarkAdAudio(int RecvNumber,MarkAdContext *maContext)
+{
+    macontext=maContext;
+    recvnumber=RecvNumber;
+    mark.Comment=NULL;
+    mark.Position=0;
+    channels=0;
+}
+
+cMarkAdAudio::~cMarkAdAudio()
+{
+    ResetMark();
+}
+
+void cMarkAdAudio::ResetMark()
+{
+    if (mark.Comment) free(mark.Comment);
+    mark.Comment=NULL;
+    mark.Position=0;
+}
+
+bool cMarkAdAudio::AddMark(int Position, const char *Comment)
+{
+    if (!Comment) return false;
+    if (mark.Comment)
+    {
+        int oldlen=strlen(mark.Comment);
+        mark.Comment=(char *) realloc(mark.Comment,oldlen+10+strlen(Comment));
+        if (!mark.Comment)
+        {
+            mark.Position=0;
+            return false;
+        }
+        strcat(mark.Comment," [");
+        strcat(mark.Comment,Comment);
+        strcat(mark.Comment,"]");
+    }
+    else
+    {
+        mark.Comment=strdup(Comment);
+    }
+    mark.Position=Position;
+    return true;
+}
+
+bool cMarkAdAudio::ChannelChange(int a, int b)
+{
+    if ((a==0) || (b==0)) return false;
+    if (a!=b) return true;
+    return false;
+}
+
+MarkAdMark *cMarkAdAudio::Process(int LastIFrame)
+{
+    ResetMark();
+    if (!LastIFrame) return NULL;
+
+
+    if (macontext->State.ContentStarted)
+    {
+        if (ChannelChange(macontext->Audio.Info.Channels,channels))
+        {
+            char *buf=NULL;
+            asprintf(&buf,"audio channel change from %i to %i (%i)", channels,
+                     macontext->Audio.Info.Channels,LastIFrame);
+            if (buf)
+            {
+                isyslog("markad [%i]: %s",recvnumber, buf);
+                AddMark(LastIFrame,buf);
+                free(buf);
+            }
+        }
+    }
+
+    channels=macontext->Audio.Info.Channels;
+    return &mark;
+}
+