1 files changed, 82 insertions, 0 deletions
diff --git a/xbmc/cores/paplayer/ICodec.h b/xbmc/cores/paplayer/ICodec.h
new file mode 100644
index 0000000..1b45280
--- /dev/null
+++ b/xbmc/cores/paplayer/ICodec.h
@@ -0,0 +1,82 @@
+/*
+ *  Copyright (C) 2005-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#pragma once
+
+#include "cores/AudioEngine/Utils/AEAudioFormat.h"
+#include "filesystem/File.h"
+#include "music/tags/MusicInfoTag.h"
+
+#include <string>
+
+#define READ_EOF      -1
+#define READ_SUCCESS   0
+#define READ_ERROR     1
+
+class CFileItem;
+
+class ICodec
+{
+public:
+  ICodec()
+  {
+    m_TotalTime = 0;
+    m_bitRate = 0;
+    m_bitsPerSample = 0;
+    m_bitsPerCodedSample = 0;
+  };
+  virtual ~ICodec() = default;
+
+  // Virtual functions that all codecs should implement.  Note that these may need
+  // enhancing and or refactoring at a later date.  It works currently well for MP3 and
+  // APE codecs.
+
+  // Init(filename)
+  // This routine should handle any initialization necessary.  At a minimum it needs to:
+  // 1.  Load any dlls and make sure any buffers etc. are allocated.
+  // 2.  Load the file (or at least attempt to load it)
+  // 3.  Fill in the m_TotalTime, m_SampleRate, m_BitsPerSample and m_Channels parameters.
+  virtual bool Init(const CFileItem &file, unsigned int filecache)=0;
+
+  virtual bool CanSeek() {return true;}
+
+  // Seek()
+  // Should seek to the appropriate time (in ms) in the file, and return the
+  // time to which we managed to seek (in the case where seeking is problematic)
+  // This is used in FFwd/Rewd so can be called very often.
+  virtual bool Seek(int64_t iSeekTime)=0;
+
+  // ReadPCM()
+  // Decodes audio into pBuffer up to size bytes.  The actual amount of returned data
+  // is given in actualsize.  Returns READ_SUCCESS on success.  Returns READ_EOF when
+  // the data has been exhausted, and READ_ERROR on error.
+  virtual int ReadPCM(uint8_t* pBuffer, size_t size, size_t* actualsize) = 0;
+
+  virtual int ReadRaw(uint8_t **pBuffer, int *bufferSize) { return READ_ERROR; }
+
+  // CanInit()
+  // Should return true if the codec can be initialized
+  // eg. check if a dll needed for the codec exists
+  virtual bool CanInit()=0;
+
+  // set the total time - useful when info comes from a preset tag
+  virtual void SetTotalTime(int64_t totaltime) {}
+
+  virtual bool IsCaching()    const    {return false;}
+  virtual int GetCacheLevel() const    {return -1;}
+
+  int64_t m_TotalTime;  // time in ms
+  int m_bitRate;
+  int m_bitsPerSample;
+  int m_bitsPerCodedSample;
+  std::string m_CodecName;
+  MUSIC_INFO::CMusicInfoTag m_tag;
+  XFILE::CFile m_file;
+  AEAudioFormat m_format;
+};
+