ginormo merge-back with Kumu, SMPTE MIC key and MPEG parser fix

1 files changed, 133 insertions, 0 deletions

diff --git a/src/KM_log.h b/src/KM_log.h
new file mode 100755
index 0000000..2bbc330
--- /dev/null
+++ b/src/KM_log.h
@@ -0,0 +1,133 @@
+/*
+Copyright (c) 2004-2006, John Hurst
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. The name of the author may not be used to endorse or promote products
+   derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+  /*! \file    KM_log.h
+    \version $Id$
+    \brief   message logging API
+  */
+
+
+#ifndef _KM_LOG_H_
+#define _KM_LOG_H_
+
+#include <KM_platform.h>
+#include <KM_mutex.h>
+#include <stdarg.h>
+#include <errno.h>
+
+#define LOG_MSG_IMPL(t) va_list args; va_start(args, fmt); vLogf((t), fmt, &args); va_end(args)
+
+
+namespace Kumu
+{
+  // no log message will exceed this length
+  const ui32_t MaxLogLength = 512;
+
+  //---------------------------------------------------------------------------------
+  // message logging
+
+  // Error and debug messages will be delivered to an object having this interface.
+  // The default implementation sends only LOG_ERROR and LOG_WARN messages to stderr.
+  // To receive LOG_INFO or LOG_DEBUG messages, or to send messages somewhere other
+  // than stderr, implement this interface and register an instance of your new class
+  // by calling SetDefaultLogSink().
+  class ILogSink
+    {
+    public:
+      enum LogType_t { LOG_DEBUG, LOG_INFO, LOG_WARN, LOG_ERROR,
+		       LOG_NOTICE, LOG_ALERT, LOG_CRIT };
+
+      virtual ~ILogSink() {}
+
+      void Critical(const char* fmt, ...) { LOG_MSG_IMPL(LOG_CRIT); }
+      void Alert(const char* fmt, ...)    { LOG_MSG_IMPL(LOG_ALERT); }
+      void Notice(const char* fmt, ...)   { LOG_MSG_IMPL(LOG_NOTICE); }
+      void Error(const char* fmt, ...)    { LOG_MSG_IMPL(LOG_ERROR); }
+      void Warn(const char* fmt, ...)     { LOG_MSG_IMPL(LOG_WARN);  }
+      void Info(const char* fmt, ...)     { LOG_MSG_IMPL(LOG_INFO);  }
+      void Debug(const char* fmt, ...)    { LOG_MSG_IMPL(LOG_DEBUG); }
+      void Logf(ILogSink::LogType_t type, const char* fmt, ...) { LOG_MSG_IMPL(type); }
+      virtual void vLogf(LogType_t, const char*, va_list*) = 0; // log a formatted string with a va_list struct
+    };
+
+  // Sets the internal default sink to the given receiver. If the given value
+  // is zero, sets the default sink to the internally allocated stderr sink.
+  void SetDefaultLogSink(ILogSink* = 0);
+
+  // Returns the internal default sink.
+  ILogSink& DefaultLogSink();
+
+  //
+  class StdioLogSink : public ILogSink
+    {
+      Mutex m_Lock;
+      FILE* m_stream;
+      KM_NO_COPY_CONSTRUCT(StdioLogSink);
+
+    public:
+      StdioLogSink() : m_stream(stderr) {};
+      StdioLogSink(FILE* stream) : m_stream(stream) {}
+      virtual ~StdioLogSink() {}
+      virtual void vLogf(LogType_t, const char*, va_list*);
+    };
+
+#ifdef KM_WIN32
+  //
+  class WinDbgLogSink : public ILogSink
+    {
+      Mutex m_Lock;
+      KM_NO_COPY_CONSTRUCT(WinDbgLogSink);
+
+    public:
+      WinDbgLogSink() {}
+      virtual ~WinDbgLogSink() {}
+      virtual void vLogf(LogType_t, const char*, va_list*);
+    };
+
+#else
+
+  //
+  class StreamLogSink : public ILogSink
+    {
+      Mutex m_Lock;
+      int   m_fd;
+      KM_NO_COPY_CONSTRUCT(StreamLogSink);
+      StreamLogSink();
+
+    public:
+      StreamLogSink(int fd) : m_fd(fd) {}
+      virtual ~StreamLogSink() {}
+      virtual void vLogf(LogType_t, const char*, va_list*);
+    };
+#endif
+
+} // namespace Kumu
+
+#endif // _KM_LOG_H_
+
+//
+// end KM_log.h
+//