winamp/Src/external_dependencies/libmp4v2/mp4.cpp

/*
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 * 
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 * 
 * The Original Code is MPEG4IP.
 * 
 * The Initial Developer of the Original Code is Cisco Systems Inc.
 * Portions created by Cisco Systems Inc. are
 * Copyright (C) Cisco Systems Inc. 2001 - 2005.  All Rights Reserved.
 *
 * 3GPP features implementation is based on 3GPP's TS26.234-v5.60,
 * and was contributed by Ximpo Group Ltd.
 *
 * Portions created by Ximpo Group Ltd. are
 * Copyright (C) Ximpo Group Ltd. 2003, 2004.  All Rights Reserved.
 * 
 * Contributor(s): 
 *		Dave Mackie			[email protected]
 *		Alix Marchandise-Franquet	[email protected]
 *              Ximpo Group Ltd.                [email protected]
 *              Bill May                        [email protected]
 */

/* 
 * MP4 library API functions
 * 
 * These are wrapper functions that provide C linkage conventions
 * to the library, and catch any internal errors, ensuring that
 * a proper return value is given.
 */

#include "mp4common.h"

#define PRINT_ERROR(e) \
	VERBOSE_ERROR(((MP4File*)hFile)->GetVerbosity(), e->Print());

/* file operations */
// benski>
 extern "C" MP4FileHandle MP4ReadEx (const MP4_FILENAME_CHAR *fileName,
				     void *user, 
				     struct Virtual_IO *virtual_IO, 
				     u_int32_t verbosity)
{
  MP4File* pFile = NULL;
  try {
    pFile = new MP4File(verbosity);
    
    pFile->ReadEx(fileName, user, virtual_IO);
    return (MP4FileHandle)pFile;
  } catch (MP4Error* e) {
    VERBOSE_ERROR(verbosity, e->Print());
    delete e; 
    delete pFile;
    return MP4_INVALID_FILE_HANDLE;
  }
}

extern "C" MP4FileHandle MP4Read(const MP4_FILENAME_CHAR *fileName, u_int32_t verbosity)
{
	MP4File* pFile = NULL;
	try {
		pFile = new MP4File(verbosity);
		pFile->Read(fileName);
		return (MP4FileHandle)pFile;
	}
	catch (MP4Error* e) {
		VERBOSE_ERROR(verbosity, e->Print());
		delete e;
		delete pFile;
		return MP4_INVALID_FILE_HANDLE;
	}
}

extern "C" MP4FileHandle MP4Create (const MP4_FILENAME_CHAR *fileName,
				    u_int32_t verbosity, 
				    u_int32_t  flags)
{
  return MP4CreateEx(fileName, verbosity, flags);
}

extern "C" MP4FileHandle MP4CreateEx (const MP4_FILENAME_CHAR *fileName,
				      u_int32_t verbosity, 
				      u_int32_t  flags,
				      int add_ftyp,
				      int add_iods,
				      char* majorBrand, 
				      u_int32_t minorVersion,
				      char** supportedBrands, 
				      u_int32_t supportedBrandsCount)
{
	MP4File* pFile = NULL;
	try {
		pFile = new MP4File(verbosity);
		// LATER useExtensibleFormat, moov first, then mvex's
		pFile->Create(fileName, flags, add_ftyp, add_iods,
			      majorBrand, minorVersion, 
			      supportedBrands, supportedBrandsCount);
		return (MP4FileHandle)pFile;
	}
	catch (MP4Error* e) {
		VERBOSE_ERROR(verbosity, e->Print());
		delete e;
		delete pFile;
		return MP4_INVALID_FILE_HANDLE;
	}
}

extern "C" MP4FileHandle MP4Modify(const MP4_FILENAME_CHAR *fileName, 
	u_int32_t verbosity, u_int32_t flags)
{
	MP4File* pFile = NULL;
	try {
		pFile = new MP4File(verbosity);
		// LATER useExtensibleFormat, moov first, then mvex's
		pFile->Modify(fileName);
		return (MP4FileHandle)pFile;
	}
	catch (MP4Error* e) {
		VERBOSE_ERROR(verbosity, e->Print());
		delete e;
		delete pFile;
		return MP4_INVALID_FILE_HANDLE;
	}
}

extern "C" bool MP4Optimize(const MP4_FILENAME_CHAR* existingFileName, 
	const MP4_FILENAME_CHAR* newFileName, 
	u_int32_t verbosity)
{
	try {
		MP4File* pFile = new MP4File(verbosity);
		pFile->Optimize(existingFileName, newFileName);
		delete pFile;
		return true;
	}
	catch (MP4Error* e) {
		VERBOSE_ERROR(verbosity, e->Print());
		delete e;
	}
	return false;
}

extern "C" void MP4Close(MP4FileHandle hFile)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->Close();
			delete (MP4File*)hFile;
			return;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return ;
}

/* specific file properties */

extern "C" u_int32_t MP4GetVerbosity(MP4FileHandle hFile)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetVerbosity();
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" void MP4SetVerbosity(MP4FileHandle hFile, u_int32_t verbosity)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetVerbosity(verbosity);
			return;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return;
}

extern "C" MP4Duration MP4GetDuration(MP4FileHandle hFile)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetDuration();
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_DURATION;
}

extern "C" u_int32_t MP4GetTimeScale(MP4FileHandle hFile)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTimeScale();
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" bool MP4SetTimeScale(MP4FileHandle hFile, u_int32_t value)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetTimeScale(value);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" u_int8_t MP4GetODProfileLevel(MP4FileHandle hFile)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetODProfileLevel();
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" bool MP4SetODProfileLevel(MP4FileHandle hFile, u_int8_t value)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetODProfileLevel(value);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" u_int8_t MP4GetSceneProfileLevel(MP4FileHandle hFile)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetSceneProfileLevel();
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" bool MP4SetSceneProfileLevel(MP4FileHandle hFile, u_int8_t value)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetSceneProfileLevel(value);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" u_int8_t MP4GetVideoProfileLevel(MP4FileHandle hFile,
					    MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetVideoProfileLevel();
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
		if (MP4_IS_VALID_TRACK_ID(trackId)) {
		  uint8_t *foo;
		  uint32_t bufsize;
		  uint8_t type;
		  // for mpeg4 video tracks, try to look for the VOSH header,
		  // which has this info.
		  type = MP4GetTrackEsdsObjectTypeId(hFile, trackId);
		  if (type == MP4_MPEG4_VIDEO_TYPE) {
		    if (MP4GetTrackESConfiguration(hFile, 
						   trackId,
						   &foo, 
						   &bufsize)) {
		      uint8_t *ptr = foo;
		      while (bufsize > 0) {
			if (htonl(*(uint32_t *)ptr) == 0x1b0) {
			  uint8_t ret = ptr[4];
			  free(foo);
			  return ret;
			}
			ptr++;
			bufsize--;
		      }
		      free(foo);
		    }
		  }
		}
		  
	}
	return 0;
}

extern "C" void MP4SetVideoProfileLevel(MP4FileHandle hFile, u_int8_t value)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetVideoProfileLevel(value);
			return ;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return ;
}

extern "C" u_int8_t MP4GetAudioProfileLevel(MP4FileHandle hFile)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetAudioProfileLevel();
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" void MP4SetAudioProfileLevel(MP4FileHandle hFile, u_int8_t value)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetAudioProfileLevel(value);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
}

extern "C" u_int8_t MP4GetGraphicsProfileLevel(MP4FileHandle hFile)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetGraphicsProfileLevel();
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" bool MP4SetGraphicsProfileLevel(MP4FileHandle hFile, u_int8_t value)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetGraphicsProfileLevel(value);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

/* generic file properties */

extern "C" bool MP4HaveAtom (MP4FileHandle hFile, const char *atomName)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File *)hFile)->FindAtomMP4File(atomName) != NULL;
    } catch (MP4Error *e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4GetIntegerProperty(
	MP4FileHandle hFile, const char* propName, u_int64_t *retvalue)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			*retvalue = ((MP4File*)hFile)->GetIntegerProperty(propName);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4GetFloatProperty(
	MP4FileHandle hFile, const char* propName, float *retvalue)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			*retvalue = ((MP4File*)hFile)->GetFloatProperty(propName);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4GetStringProperty(
	MP4FileHandle hFile, const char* propName,
	const char **retvalue)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			*retvalue =  ((MP4File*)hFile)->GetStringProperty(propName);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4GetBytesProperty(
	MP4FileHandle hFile, const char* propName, 
	u_int8_t** ppValue, u_int32_t* pValueSize)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->GetBytesProperty(propName, ppValue, pValueSize);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	*ppValue = NULL;
	*pValueSize = 0;
	return false;
}

extern "C" bool MP4SetIntegerProperty(
	MP4FileHandle hFile, const char* propName, int64_t value)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetIntegerProperty(propName, value);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4SetFloatProperty(
	MP4FileHandle hFile, const char* propName, float value)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetFloatProperty(propName, value);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4SetStringProperty(
	MP4FileHandle hFile, const char* propName, const char* value)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetStringProperty(propName, value);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4SetBytesProperty(
	MP4FileHandle hFile, const char* propName, 
	const u_int8_t* pValue, u_int32_t valueSize)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetBytesProperty(propName, pValue, valueSize);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

/* track operations */

extern "C" MP4TrackId MP4AddTrack(
	MP4FileHandle hFile, const char* type)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->AddSystemsTrack(type);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

extern "C" MP4TrackId MP4AddSystemsTrack(
	MP4FileHandle hFile, const char* type)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->AddSystemsTrack(type);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

extern "C" MP4TrackId MP4AddODTrack(MP4FileHandle hFile)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->AddODTrack();
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

extern "C" MP4TrackId MP4AddSceneTrack(MP4FileHandle hFile)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->AddSceneTrack();
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

extern "C" MP4TrackId MP4AddAudioTrack(
	MP4FileHandle hFile, 
	u_int32_t timeScale, 
	MP4Duration sampleDuration, 
	u_int8_t audioType)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->
				AddAudioTrack(timeScale, sampleDuration, audioType);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

//
// API to initialize ismacryp properties to sensible defaults.
// if the input pointer is null then an ismacryp params is malloc'd.
// caller must see to it that it is properly disposed of.
//
extern "C" mp4v2_ismacrypParams *MP4DefaultISMACrypParams(mp4v2_ismacrypParams *ptr)
{
    try
    {
        if (ptr == NULL) {
            ptr = (mp4v2_ismacrypParams *)MP4Malloc(sizeof(mp4v2_ismacrypParams));
        }
        memset(ptr, 0, sizeof(*ptr));
        return ptr;
    }

    catch (...) {
      return 0;
    }
}


extern "C" MP4TrackId MP4AddEncAudioTrack(MP4FileHandle hFile, 
					  u_int32_t timeScale, 
					  MP4Duration sampleDuration,
                                          mp4v2_ismacrypParams *icPp,
					  u_int8_t audioType)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      if (icPp == NULL) {
	return ((MP4File*)hFile)->
	  AddEncAudioTrack(timeScale, sampleDuration, audioType,
			   0, 0, 
			   0, 0, 
			   false, NULL, false);
      } else {
	return ((MP4File*)hFile)->
	  AddEncAudioTrack(timeScale, sampleDuration, audioType,
			   icPp->scheme_type, icPp->scheme_version, 
			   icPp->key_ind_len, icPp->iv_len, 
			   icPp->selective_enc, icPp->kms_uri, true);
      }
    } catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return MP4_INVALID_TRACK_ID;
}
extern "C" MP4TrackId MP4AddAmrAudioTrack(
		MP4FileHandle hFile,
		u_int32_t timeScale,
		u_int16_t modeSet,
		u_int8_t modeChangePeriod,
		u_int8_t framesPerSample,
		bool isAmrWB)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->
				AddAmrAudioTrack(timeScale, modeSet, modeChangePeriod, framesPerSample, isAmrWB);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

extern "C" void MP4SetAmrVendor(
		MP4FileHandle hFile,
		MP4TrackId trackId,
		u_int32_t vendor)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->
				SetAmrVendor(trackId, vendor);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
}

extern "C" void MP4SetAmrDecoderVersion(
		MP4FileHandle hFile,
		MP4TrackId trackId,
		u_int8_t decoderVersion)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->
				SetAmrDecoderVersion(trackId, decoderVersion);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
}

extern "C" void MP4SetAmrModeSet(
		MP4FileHandle hFile,
		MP4TrackId trackId,
		u_int16_t modeSet)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->
				SetAmrModeSet(trackId, modeSet);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
}

extern "C" uint16_t MP4GetAmrModeSet(
				     MP4FileHandle hFile,
				     MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
		  return ((MP4File*)hFile)->
				GetAmrModeSet(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" MP4TrackId MP4AddHrefTrack (MP4FileHandle hFile,
				       uint32_t timeScale,
				       MP4Duration sampleDuration,
				       const char *base_url)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      MP4File *pFile = (MP4File *)hFile;

      return pFile->AddHrefTrack(timeScale, 
				 sampleDuration,
				 base_url);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return MP4_INVALID_TRACK_ID;
}

extern "C" const char *MP4GetHrefTrackBaseUrl (MP4FileHandle hFile,
					       MP4TrackId trackId)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetTrackStringProperty(trackId,
						       "mdia.minf.stbl.stsd.href.burl.base_url");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return NULL;
}

extern "C" MP4TrackId MP4AddVideoTrack(
	MP4FileHandle hFile, 
	u_int32_t timeScale, 
	MP4Duration sampleDuration,
	u_int16_t width, 
	u_int16_t height, 
	u_int8_t videoType)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      MP4File *pFile = (MP4File *)hFile;

      return pFile->AddMP4VideoTrack(timeScale, 
				     sampleDuration, 
				     width, 
				     height, 
				     videoType);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return MP4_INVALID_TRACK_ID;
}

extern "C" MP4TrackId MP4AddEncVideoTrack(MP4FileHandle hFile, 
					  u_int32_t timeScale, 
					  MP4Duration sampleDuration,
					  u_int16_t width, 
					  u_int16_t height, 
                                          mp4v2_ismacrypParams *icPp,
					  u_int8_t videoType,
					  const char *oFormat)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {

 	  // test for valid ismacrypt session descriptor
      if (icPp == NULL) {
		return MP4_INVALID_TRACK_ID;
      }
      MP4File *pFile = (MP4File *)hFile;

	return pFile->AddEncVideoTrack(timeScale, 
			sampleDuration, 
			width, 
			height, 
			videoType, 
			icPp, 
			oFormat);

    } catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return MP4_INVALID_TRACK_ID;
}


extern "C" MP4TrackId MP4AddH264VideoTrack(MP4FileHandle hFile, 
					   u_int32_t timeScale, 
					   MP4Duration sampleDuration,
					   u_int16_t width, 
					   u_int16_t height, 
					   uint8_t AVCProfileIndication,
					   uint8_t profile_compat,
					   uint8_t AVCLevelIndication,
					   uint8_t sampleLenFieldSizeMinusOne)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      MP4File *pFile = (MP4File *)hFile;

      return pFile->AddH264VideoTrack(timeScale, 
				      sampleDuration, 
				      width, 
				      height, 
				      AVCProfileIndication,
				      profile_compat,
				      AVCLevelIndication,
				      sampleLenFieldSizeMinusOne);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return MP4_INVALID_TRACK_ID;
}

extern "C" MP4TrackId MP4AddEncH264VideoTrack(
	MP4FileHandle hFile, 
	u_int32_t timeScale, 
	MP4Duration sampleDuration,
	u_int16_t width, 
	u_int16_t height, 
	MP4FileHandle srcFile, 
	MP4TrackId srcTrackId, 
    mp4v2_ismacrypParams *icPp
)

{
  MP4Atom *srcAtom;
  MP4File *pFile;

  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {

	pFile = (MP4File *)srcFile;
	srcAtom = pFile->FindTrackAtom(srcTrackId, "mdia.minf.stbl.stsd.avc1.avcC");
	if (srcAtom == NULL)
		return MP4_INVALID_TRACK_ID;

	pFile = (MP4File *)hFile;

	return pFile->AddEncH264VideoTrack(timeScale, 
			 sampleDuration, 
			 width, 
			 height, 
			 srcAtom,
			 icPp);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return MP4_INVALID_TRACK_ID;
}

extern "C" void MP4AddH264SequenceParameterSet (MP4FileHandle hFile,
						MP4TrackId trackId,
						const uint8_t *pSequence,
						uint16_t sequenceLen)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      MP4File *pFile = (MP4File *)hFile;

      pFile->AddH264SequenceParameterSet(trackId,
					 pSequence,
					 sequenceLen);
      return;
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
    return;
}
extern "C" void MP4AddH264PictureParameterSet (MP4FileHandle hFile,
					       MP4TrackId trackId,
					       const uint8_t *pPict,
					       uint16_t pictLen)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      MP4File *pFile = (MP4File *)hFile;

      pFile->AddH264PictureParameterSet(trackId,
					pPict,
					pictLen);
      return;
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
    return;
}

extern "C" MP4TrackId MP4AddH263VideoTrack(
		MP4FileHandle hFile,
		u_int32_t timeScale,
		MP4Duration sampleDuration,
		u_int16_t width,
		u_int16_t height,
		u_int8_t h263Level,
		u_int8_t h263Profile,
		u_int32_t avgBitrate,
		u_int32_t maxBitrate)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->
				AddH263VideoTrack(timeScale, sampleDuration, width, height, h263Level, h263Profile, avgBitrate, maxBitrate);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	
	return MP4_INVALID_TRACK_ID;
}

extern "C" void MP4SetH263Vendor(
		MP4FileHandle hFile,
		MP4TrackId trackId,
		u_int32_t vendor)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->
				SetH263Vendor(trackId, vendor);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
}

extern "C" void MP4SetH263DecoderVersion(
		MP4FileHandle hFile,
		MP4TrackId trackId,
		u_int8_t decoderVersion)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		
		try {
			((MP4File*)hFile)->
				SetH263DecoderVersion(trackId, decoderVersion);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
}

extern "C" void MP4SetH263Bitrates(
		MP4FileHandle hFile,
		MP4TrackId trackId,
		u_int32_t avgBitrate,
		u_int32_t maxBitrate)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {

		try {
			((MP4File*)hFile)->
				SetH263Bitrates(trackId, avgBitrate, maxBitrate);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
}

extern "C" MP4TrackId MP4AddHintTrack(
	MP4FileHandle hFile, MP4TrackId refTrackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->AddHintTrack(refTrackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

extern "C" MP4TrackId MP4AddTextTrack(
	MP4FileHandle hFile, MP4TrackId refTrackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->AddTextTrack(refTrackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

extern "C" MP4TrackId MP4AddChapterTextTrack(MP4FileHandle hFile,  MP4TrackId refTrackId,  u_int32_t timescale) 
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->AddChapterTextTrack(refTrackId, timescale);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}
extern "C" void MP4AddQTChapter( 
 MP4FileHandle hFile,  
 MP4TrackId chapterTrackId, 
 MP4Duration chapterDuration, 
 u_int32_t chapterNr, 
 const char * chapterTitle) 
{ 
 if (MP4_IS_VALID_FILE_HANDLE(hFile)) { 
 try { 
 ((MP4File*)hFile)->AddChapter(chapterTrackId, chapterDuration, chapterNr, chapterTitle); 
 } 
 catch (MP4Error* e) { 
 PRINT_ERROR(e); 
 delete e; 
 } 
 } 
} 
 
 
extern "C" void MP4AddChapter( 
 MP4FileHandle hFile,  
 MP4Timestamp chapterStart, 
 const char * chapterTitle) 
{ 
 if (MP4_IS_VALID_FILE_HANDLE(hFile)) { 
 try { 
 ((MP4File*)hFile)->AddChapter(chapterStart, chapterTitle); 
 } 
 catch (MP4Error* e) { 
 PRINT_ERROR(e); 
 delete e; 
 } 
 } 
} 
 
 
extern "C" void MP4ConvertChapters( 
 MP4FileHandle hFile, 
 bool toQT) 
{ 
 if (MP4_IS_VALID_FILE_HANDLE(hFile)) { 
 try { 
 ((MP4File*)hFile)->ConvertChapters(toQT); 
 } 
 catch (MP4Error* e) { 
 PRINT_ERROR(e); 
 delete e; 
 } 
 } 
} 
 
 
extern "C" void MP4DeleteChapters( 
 MP4FileHandle hFile, 
 MP4TrackId chapterTrackId, 
 bool deleteQT) 
{ 
 if (MP4_IS_VALID_FILE_HANDLE(hFile)) { 
 try { 
 ((MP4File*)hFile)->DeleteChapters(chapterTrackId, deleteQT); 
 } 
 catch (MP4Error* e) { 
 PRINT_ERROR(e); 
 delete e; 
 } 
 } 
} 
 
 
extern "C" void MP4GetChaptersList( 
 MP4FileHandle hFile, 
 MP4Chapters_t ** chapterList, 
 u_int32_t * chapterCount, 
 bool getQT) 
{ 
 if (MP4_IS_VALID_FILE_HANDLE(hFile)) { 
 try { 
 ((MP4File*)hFile)->GetChaptersList(chapterList, chapterCount, getQT); 
 } 
 catch (MP4Error* e) { 
 PRINT_ERROR(e); 
 delete e; 
 } 
 } 
} 
 
 

extern "C" MP4TrackId MP4CloneTrack (MP4FileHandle srcFile, 
				     MP4TrackId srcTrackId,
				     MP4FileHandle dstFile,
				     MP4TrackId dstHintTrackReferenceTrack)
{
  MP4TrackId dstTrackId = MP4_INVALID_TRACK_ID;

  if (dstFile == NULL) {
    dstFile = srcFile;
  }

  const char* trackType = 
    MP4GetTrackType(srcFile, srcTrackId);

  if (!trackType) {
    return dstTrackId;
  }

  const char *media_data_name = 
    MP4GetTrackMediaDataName(srcFile, srcTrackId);
  if (media_data_name == NULL) return dstTrackId;

  if (MP4_IS_VIDEO_TRACK_TYPE(trackType)) {
    if (ATOMID(media_data_name) == ATOMID("mp4v")) {
      MP4SetVideoProfileLevel(dstFile, 
			      MP4GetVideoProfileLevel(srcFile));
      dstTrackId = MP4AddVideoTrack(
				    dstFile,
				    MP4GetTrackTimeScale(srcFile, 
							 srcTrackId),
				    MP4GetTrackFixedSampleDuration(srcFile, 
								   srcTrackId),
				    MP4GetTrackVideoWidth(srcFile, 
							  srcTrackId),
				    MP4GetTrackVideoHeight(srcFile, 
							   srcTrackId),
				    MP4GetTrackEsdsObjectTypeId(srcFile, 
								srcTrackId));
    } else if (ATOMID(media_data_name) == ATOMID("avc1")) {
      uint8_t AVCProfileIndication;
      uint8_t profile_compat;
      uint8_t AVCLevelIndication;
      uint32_t sampleLenFieldSizeMinusOne;
      uint64_t temp;
      
      if (MP4GetTrackH264ProfileLevel(srcFile, srcTrackId, 
				      &AVCProfileIndication,
				      &AVCLevelIndication) == false) {
	return dstTrackId;
      }
      if (MP4GetTrackH264LengthSize(srcFile, srcTrackId, 
				    &sampleLenFieldSizeMinusOne) == false) {
	return dstTrackId;
      }
      sampleLenFieldSizeMinusOne--;
      if (MP4GetTrackIntegerProperty(srcFile, srcTrackId, 
				     "mdia.minf.stbl.stsd.*[0].avcC.profile_compatibility",
				     &temp) == false) return dstTrackId;
      profile_compat = temp & 0xff;
      
      dstTrackId = MP4AddH264VideoTrack(dstFile, 
					MP4GetTrackTimeScale(srcFile, 
							     srcTrackId),
					MP4GetTrackFixedSampleDuration(srcFile, 
								       srcTrackId),
					MP4GetTrackVideoWidth(srcFile, 
							      srcTrackId),
					MP4GetTrackVideoHeight(srcFile, 
							       srcTrackId),
					AVCProfileIndication,
					profile_compat,
					AVCLevelIndication,
					sampleLenFieldSizeMinusOne);
        uint8_t **seqheader, **pictheader;
	uint32_t *pictheadersize, *seqheadersize;
	uint32_t ix;
	MP4GetTrackH264SeqPictHeaders(srcFile, srcTrackId, 
				      &seqheader, &seqheadersize,
				      &pictheader, &pictheadersize);
	for (ix = 0; seqheadersize[ix] != 0; ix++) {
	  MP4AddH264SequenceParameterSet(dstFile, dstTrackId,
					 seqheader[ix], seqheadersize[ix]);
	  free(seqheader[ix]);
	}
	free(seqheader);
	free(seqheadersize);
	for (ix = 0; pictheadersize[ix] != 0; ix++) {
	  MP4AddH264PictureParameterSet(dstFile, dstTrackId,
					pictheader[ix], pictheadersize[ix]);
	  free(pictheader[ix]);
	}
	free(pictheader);
	free(pictheadersize);
    } else
      return dstTrackId;
  } else if (MP4_IS_AUDIO_TRACK_TYPE(trackType)) {
    if (ATOMID(media_data_name) != ATOMID("mp4a")) return dstTrackId;
    MP4SetAudioProfileLevel(dstFile, 
			    MP4GetAudioProfileLevel(srcFile));
    dstTrackId = MP4AddAudioTrack(
				  dstFile,
				  MP4GetTrackTimeScale(srcFile, srcTrackId),
				  MP4GetTrackFixedSampleDuration(srcFile, srcTrackId),
				  MP4GetTrackEsdsObjectTypeId(srcFile, srcTrackId));

  } else if (MP4_IS_OD_TRACK_TYPE(trackType)) {
    dstTrackId = MP4AddODTrack(dstFile);

  } else if (MP4_IS_SCENE_TRACK_TYPE(trackType)) {
    dstTrackId = MP4AddSceneTrack(dstFile);

  } else if (MP4_IS_HINT_TRACK_TYPE(trackType)) {
    if (dstHintTrackReferenceTrack == MP4_INVALID_TRACK_ID) {
      dstTrackId = MP4_INVALID_TRACK_ID;
    } else {
      dstTrackId = MP4AddHintTrack(
				   dstFile,
				   dstHintTrackReferenceTrack);
    }

  } else if (MP4_IS_SYSTEMS_TRACK_TYPE(trackType)) {
    dstTrackId = MP4AddSystemsTrack(dstFile, trackType);

  } else {
    dstTrackId = MP4AddTrack(dstFile, trackType);
  }

  if (dstTrackId == MP4_INVALID_TRACK_ID) {
    return dstTrackId;
  }

  MP4SetTrackTimeScale(
		       dstFile, 
		       dstTrackId,
		       MP4GetTrackTimeScale(srcFile, srcTrackId));

  if (MP4_IS_AUDIO_TRACK_TYPE(trackType) 
      || MP4_IS_VIDEO_TRACK_TYPE(trackType)) {
    // copy track ES configuration
    u_int8_t* pConfig = NULL;
    u_int32_t configSize = 0;
	  
    if (MP4GetTrackESConfiguration(
				   srcFile, 
				   srcTrackId,
				   &pConfig,
				   &configSize) &&
	pConfig != NULL && configSize != 0) {
      if (!MP4SetTrackESConfiguration(
				      dstFile, 
				      dstTrackId,
				      pConfig,
				      configSize)) {
	free(pConfig);
	MP4DeleteTrack(dstFile, dstTrackId);
	return MP4_INVALID_TRACK_ID;
      }
	    
      free(pConfig);
    }
  }

  if (MP4_IS_HINT_TRACK_TYPE(trackType)) {
    // probably not exactly what is wanted
    // but caller can adjust later to fit their desires

    char* payloadName = NULL;
    char *encodingParms = NULL;
    u_int8_t payloadNumber;
    u_int16_t maxPayloadSize;

    if (MP4GetHintTrackRtpPayload(
			      srcFile,
			      srcTrackId,
			      &payloadName,
			      &payloadNumber,
			      &maxPayloadSize,
			      &encodingParms)) {

      if (MP4SetHintTrackRtpPayload(
				    dstFile,
				    dstTrackId,
				    payloadName,
				    &payloadNumber,
				    maxPayloadSize,
				    encodingParms) == false) {
	MP4DeleteTrack(dstFile, dstTrackId);
	return MP4_INVALID_TRACK_ID;
      }
    }
#if 0
    MP4SetHintTrackSdp(
		       dstFile,
		       dstTrackId,
		       MP4GetHintTrackSdp(srcFile, srcTrackId));
#endif
  }

  return dstTrackId;
}

// Given a track, make an encrypted clone of it in the dest. file
extern "C" MP4TrackId MP4EncAndCloneTrack(MP4FileHandle srcFile,
                                          MP4TrackId srcTrackId,
                                          mp4v2_ismacrypParams *icPp,
					  MP4FileHandle dstFile,
					  MP4TrackId dstHintTrackReferenceTrack
                                          )
{
  const char *oFormat;

  MP4TrackId dstTrackId = MP4_INVALID_TRACK_ID;

  if (dstFile == NULL) {
    dstFile = srcFile;
  }

  const char* trackType = MP4GetTrackType(srcFile, srcTrackId);

  if (!trackType) {
    return dstTrackId;
  }

  if (MP4_IS_VIDEO_TRACK_TYPE(trackType)) {

    // test source file format for avc1
    oFormat = MP4GetTrackMediaDataName(srcFile, srcTrackId);
    if (!strcasecmp(oFormat, "avc1"))
    {
        dstTrackId = MP4AddEncH264VideoTrack(dstFile,
				MP4GetTrackTimeScale(srcFile, srcTrackId),
				MP4GetTrackFixedSampleDuration(srcFile, srcTrackId),
				MP4GetTrackVideoWidth(srcFile, srcTrackId),
				MP4GetTrackVideoHeight(srcFile, srcTrackId),
				srcFile, 
				srcTrackId,
				icPp
                     );
    }
    else
    {
    MP4SetVideoProfileLevel(dstFile, MP4GetVideoProfileLevel(srcFile));
    dstTrackId = MP4AddEncVideoTrack(dstFile,
				     MP4GetTrackTimeScale(srcFile, srcTrackId),
				MP4GetTrackFixedSampleDuration(srcFile, srcTrackId),
				     MP4GetTrackVideoWidth(srcFile, srcTrackId),
				     MP4GetTrackVideoHeight(srcFile, srcTrackId),
                                     icPp,
				MP4GetTrackEsdsObjectTypeId(srcFile, srcTrackId),
				oFormat
                                     );
    }

  } else if (MP4_IS_AUDIO_TRACK_TYPE(trackType)) {
    MP4SetAudioProfileLevel(dstFile, MP4GetAudioProfileLevel(srcFile));
    dstTrackId = MP4AddEncAudioTrack(dstFile,
				     MP4GetTrackTimeScale(srcFile, srcTrackId),
				     MP4GetTrackFixedSampleDuration(srcFile, 
								    srcTrackId),
                                     icPp,
				     MP4GetTrackEsdsObjectTypeId(srcFile, 
								 srcTrackId)
                                     );

  } else if (MP4_IS_OD_TRACK_TYPE(trackType)) {
    dstTrackId = MP4AddODTrack(dstFile);

  } else if (MP4_IS_SCENE_TRACK_TYPE(trackType)) {
    dstTrackId = MP4AddSceneTrack(dstFile);
    
  } else if (MP4_IS_HINT_TRACK_TYPE(trackType)) {
     if (dstHintTrackReferenceTrack == MP4_INVALID_TRACK_ID) {
         dstTrackId = MP4_INVALID_TRACK_ID;
    } else {	 
         dstTrackId = MP4AddHintTrack(dstFile,
				 MP4GetHintTrackReferenceTrackId(srcFile, 
								 srcTrackId));
    }
  } else if (MP4_IS_SYSTEMS_TRACK_TYPE(trackType)) {
    dstTrackId = MP4AddSystemsTrack(dstFile, trackType);
    
  } else {
    dstTrackId = MP4AddTrack(dstFile, trackType);
  }

  if (dstTrackId == MP4_INVALID_TRACK_ID) {
    return dstTrackId;
  }

  MP4SetTrackTimeScale(dstFile, 
		       dstTrackId,
		       MP4GetTrackTimeScale(srcFile, srcTrackId));

  if (MP4_IS_AUDIO_TRACK_TYPE(trackType) 
   || MP4_IS_VIDEO_TRACK_TYPE(trackType)) {
    // copy track ES configuration
    u_int8_t* pConfig = NULL;
    u_int32_t configSize = 0;
    if (MP4GetTrackESConfiguration(srcFile, srcTrackId,
				   &pConfig, &configSize)) {
    
      if (pConfig != NULL) {
	MP4SetTrackESConfiguration(dstFile, dstTrackId,
				   pConfig, configSize);
      }
    }
    if (pConfig != NULL)
      free(pConfig);
    }

  // Bill's change to MP4CloneTrack
  if (MP4_IS_HINT_TRACK_TYPE(trackType)) {
    // probably not exactly what is wanted
    // but caller can adjust later to fit their desires

    char* payloadName = NULL;
    char *encodingParms = NULL;
    u_int8_t payloadNumber;
    u_int16_t maxPayloadSize;

    if (MP4GetHintTrackRtpPayload(
				  srcFile,
				  srcTrackId,
				  &payloadName,
				  &payloadNumber,
				  &maxPayloadSize,
				  &encodingParms)) {

      (void)MP4SetHintTrackRtpPayload(
		                 dstFile,
			         dstTrackId,
			         payloadName,
			         &payloadNumber,
			         maxPayloadSize,
			         encodingParms);	
    }
#if 0
      MP4SetHintTrackSdp(
                         dstFile,
                         dstTrackId,
                         MP4GetHintTrackSdp(srcFile, srcTrackId));
#endif
   }

  return dstTrackId;
}

extern "C" MP4TrackId MP4CopyTrack(MP4FileHandle srcFile, 
				   MP4TrackId srcTrackId,
				   MP4FileHandle dstFile, 
				   bool applyEdits,
				   MP4TrackId dstHintTrackReferenceTrack)
{
  bool copySamples = true;	// LATER allow false => reference samples

  MP4TrackId dstTrackId =
    MP4CloneTrack(srcFile, srcTrackId, dstFile, dstHintTrackReferenceTrack);

  if (dstTrackId == MP4_INVALID_TRACK_ID) {
    return dstTrackId;
  }

  bool viaEdits =
    applyEdits && MP4GetTrackNumberOfEdits(srcFile, srcTrackId);

  MP4SampleId sampleId = 0;
  MP4SampleId numSamples = 
    MP4GetTrackNumberOfSamples(srcFile, srcTrackId);

  MP4Timestamp when = 0;
  MP4Duration editsDuration = 
    MP4GetTrackEditTotalDuration(srcFile, srcTrackId);

  while (true) {
    MP4Duration sampleDuration = MP4_INVALID_DURATION;

    if (viaEdits) {
      sampleId = MP4GetSampleIdFromEditTime(
					    srcFile,
					    srcTrackId,
					    when,
					    NULL,
					    &sampleDuration);

      // in theory, this shouldn't happen
      if (sampleId == MP4_INVALID_SAMPLE_ID) {
	MP4DeleteTrack(dstFile, dstTrackId);
	return MP4_INVALID_TRACK_ID;
      }

      when += sampleDuration;
      
      if (when >= editsDuration) {
	break;
      }
    } else {
      sampleId++;
      if (sampleId > numSamples) {
	break;
      }
    }

    bool rc = false;
    
    if (copySamples) {
      rc = MP4CopySample(
			 srcFile,
			 srcTrackId,
			 sampleId,
			 dstFile,
			 dstTrackId,
			 sampleDuration);

    } else {
      rc = MP4ReferenceSample(
			      srcFile,
			      srcTrackId,
			      sampleId,
			      dstFile,
			      dstTrackId,
			      sampleDuration);
    }

    if (!rc) {
      MP4DeleteTrack(dstFile, dstTrackId);
      return MP4_INVALID_TRACK_ID;
    }
  }

  return dstTrackId;
}

// Given a source track in a source file, make an encrypted copy of 
// the track in the destination file, including sample encryption
extern "C" MP4TrackId MP4EncAndCopyTrack(MP4FileHandle srcFile, 
					 MP4TrackId srcTrackId,
                                         mp4v2_ismacrypParams *icPp,
                                         encryptFunc_t encfcnp,
                                         u_int32_t encfcnparam1,
					 MP4FileHandle dstFile,
					 bool applyEdits,
					 MP4TrackId dstHintTrackReferenceTrack
                                         )
{
  bool copySamples = true;	// LATER allow false => reference samples

  MP4TrackId dstTrackId =
     MP4EncAndCloneTrack(srcFile, srcTrackId,
                        icPp,
                        dstFile, dstHintTrackReferenceTrack);
  
  if (dstTrackId == MP4_INVALID_TRACK_ID) {
    return dstTrackId;
  }

  bool viaEdits =
    applyEdits && MP4GetTrackNumberOfEdits(srcFile, srcTrackId);

  MP4SampleId sampleId = 0;
  MP4SampleId numSamples = 
    MP4GetTrackNumberOfSamples(srcFile, srcTrackId);

  MP4Timestamp when = 0;
  MP4Duration editsDuration = 
    MP4GetTrackEditTotalDuration(srcFile, srcTrackId);

  while (true) {
    MP4Duration sampleDuration = MP4_INVALID_DURATION;

    if (viaEdits) {
      sampleId = MP4GetSampleIdFromEditTime(srcFile,
					    srcTrackId,
					    when,
					    NULL,
					    &sampleDuration);

      // in theory, this shouldn't happen
      if (sampleId == MP4_INVALID_SAMPLE_ID) {
	MP4DeleteTrack(dstFile, dstTrackId);
	return MP4_INVALID_TRACK_ID;
      }

      when += sampleDuration;

      if (when >= editsDuration) {
	break;
      }
    } else {
      sampleId++;
      if (sampleId > numSamples) {
	break;
      }
    }

    bool rc = false;

    if (copySamples) {
      // encrypt and copy
      rc = MP4EncAndCopySample(srcFile,
			 srcTrackId,
			 sampleId,
			 encfcnp,
                         encfcnparam1,
			 dstFile,
			 dstTrackId,
			 sampleDuration);

    } else {
      // not sure what these are - encrypt?
      rc = MP4ReferenceSample(srcFile,
			      srcTrackId,
			      sampleId,
			      dstFile,
			      dstTrackId,
			      sampleDuration);
    }

    if (!rc) {
      MP4DeleteTrack(dstFile, dstTrackId);
      return MP4_INVALID_TRACK_ID;
    }
  }

  return dstTrackId;
}

extern "C" void MP4DeleteTrack(
	MP4FileHandle hFile, 
	MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->DeleteTrack(trackId);
			return ;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return;
}

extern "C" u_int32_t MP4GetNumberOfTracks(
	MP4FileHandle hFile, 
	const char* type,
	u_int8_t subType)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetNumberOfTracks(type, subType);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" MP4TrackId MP4FindTrackId(
	MP4FileHandle hFile, 
	u_int16_t index, 
	const char* type,
	u_int8_t subType)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->FindTrackId(index, type, subType);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

extern "C" u_int16_t MP4FindTrackIndex(
	MP4FileHandle hFile, MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->FindTrackIndex(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return (u_int16_t)-1;
}

/* specific track properties */

extern "C" const char* MP4GetTrackType(
	MP4FileHandle hFile, MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackType(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return NULL;
}
extern "C" const char* MP4GetTrackMediaDataName(
	MP4FileHandle hFile, MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackMediaDataName(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return NULL;
}

extern "C" bool MP4GetTrackMediaDataOriginalFormat(
	MP4FileHandle hFile, MP4TrackId trackId, char *originalFormat,
	u_int32_t buflen)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {

			return ((MP4File*)hFile)->GetTrackMediaDataOriginalFormat(trackId, 
				originalFormat, buflen);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" MP4Duration MP4GetTrackDuration(
	MP4FileHandle hFile, MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackDuration(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_DURATION;
}

extern "C" u_int32_t MP4GetTrackTimeScale(
	MP4FileHandle hFile, MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackTimeScale(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" void MP4SetTrackTimeScale(
	MP4FileHandle hFile, MP4TrackId trackId, u_int32_t value)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetTrackTimeScale(trackId, value);
			return;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return;
}

extern "C" u_int8_t MP4GetTrackAudioMpeg4Type(
	MP4FileHandle hFile, MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackAudioMpeg4Type(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_MPEG4_INVALID_AUDIO_TYPE;
}



// Replacement to MP4GetTrackVideoType and MP4GetTrackAudioType
// Basically does the same thing but with a more self-explanatory name
extern "C" u_int8_t MP4GetTrackEsdsObjectTypeId(
     MP4FileHandle hFile, MP4TrackId trackId)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      
      return ((MP4File*)hFile)->GetTrackEsdsObjectTypeId(trackId);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return MP4_INVALID_AUDIO_TYPE;
}

extern "C" MP4Duration MP4GetTrackFixedSampleDuration(
	MP4FileHandle hFile, MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackFixedSampleDuration(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_DURATION;
}

extern "C" u_int32_t MP4GetTrackBitRate(
	MP4FileHandle hFile, MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		uint32_t br = 0;
	  MP4File *pFile = (MP4File *)hFile;
		try {
		  br = pFile->GetTrackIntegerProperty(trackId,
				"mdia.minf.stbl.stsd.*.esds.decConfigDescr.avgBitrate");
			if (br > 16000)
				return br;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
		// if we're here, we can't get the bitrate from above - 
		// lets calculate it
		try {
		  MP4Duration trackDur;
		  trackDur = MP4GetTrackDuration(hFile, trackId);
		  uint64_t msDuration = 
		    pFile->ConvertFromTrackDuration(trackId, trackDur, 
						    MP4_MSECS_TIME_SCALE);
		  if (msDuration == 0) return 0;

		  MP4Track *pTrack = pFile->GetTrack(trackId);
		  double bytes = pTrack->GetTotalOfSampleSizes();
		  //bytes *= TO_U64(8 * 1000);
		  //bytes /= msDuration;
		  //return (uint32_t)bytes;
		
		  // divide first !!!
		  bytes /= (double)msDuration;
		  bytes *= TO_U64(8 * 1000);
		  return (uint32_t)bytes;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
		
	}
	return 0;
}

extern "C" bool MP4GetTrackESConfiguration(
	MP4FileHandle hFile, MP4TrackId trackId, 
	u_int8_t** ppConfig, u_int32_t* pConfigSize)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->GetTrackESConfiguration(
				trackId, ppConfig, pConfigSize);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	*ppConfig = NULL;
	*pConfigSize = 0;
	return false;
}
extern "C" bool MP4GetTrackVideoMetadata(
	MP4FileHandle hFile, MP4TrackId trackId, 
	u_int8_t** ppConfig, u_int32_t* pConfigSize)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->GetTrackVideoMetadata(
				trackId, ppConfig, pConfigSize);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	*ppConfig = NULL;
	*pConfigSize = 0;
	return false;
}

extern "C" bool MP4SetTrackESConfiguration(
	MP4FileHandle hFile, MP4TrackId trackId, 
	const u_int8_t* pConfig, u_int32_t configSize)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetTrackESConfiguration(
				trackId, pConfig, configSize);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4GetTrackH264ProfileLevel (MP4FileHandle hFile, 
					     MP4TrackId trackId,
					     uint8_t *pProfile,
					     uint8_t *pLevel)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      *pProfile = 
	((MP4File *)hFile)->GetTrackIntegerProperty(trackId, 
						    "mdia.minf.stbl.stsd.*[0].avcC.AVCProfileIndication");
      *pLevel = 
	((MP4File *)hFile)->GetTrackIntegerProperty(trackId, 
						    "mdia.minf.stbl.stsd.*[0].avcC.AVCLevelIndication");

      return true;
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
extern "C" void MP4GetTrackH264SeqPictHeaders (MP4FileHandle hFile, 
					       MP4TrackId trackId,
					       uint8_t ***pSeqHeader,
					       uint32_t **pSeqHeaderSize,
					       uint8_t ***pPictHeader,
					       uint32_t **pPictHeaderSize)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      ((MP4File*)hFile)->GetTrackH264SeqPictHeaders(trackId, 
						    pSeqHeader,
						    pSeqHeaderSize,
						    pPictHeader,
						    pPictHeaderSize);
      return;
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return;
}
extern "C" bool MP4GetTrackH264LengthSize (MP4FileHandle hFile, 
					   MP4TrackId trackId,
					   uint32_t *pLength)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      *pLength = 1 + 
	((MP4File*) hFile)->GetTrackIntegerProperty(trackId, 
						   "mdia.minf.stbl.stsd.*[0].avcC.lengthSizeMinusOne");
      return true;
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
  
extern "C" MP4SampleId MP4GetTrackNumberOfSamples(
	MP4FileHandle hFile, MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackNumberOfSamples(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" MP4ChunkId MP4GetTrackNumberOfChunks(
	MP4FileHandle hFile, MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackNumberOfChunks(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" u_int16_t MP4GetTrackVideoWidth(
	MP4FileHandle hFile, MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
		       return ((MP4File*)hFile)->GetTrackIntegerProperty(trackId,
				"mdia.minf.stbl.stsd.*.width");
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" u_int16_t MP4GetTrackVideoHeight(
	MP4FileHandle hFile, MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackIntegerProperty(trackId,
				"mdia.minf.stbl.stsd.*.height");
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" double MP4GetTrackVideoFrameRate(
	MP4FileHandle hFile, MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackVideoFrameRate(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0.0;
}

extern "C" int MP4GetTrackAudioChannels (MP4FileHandle hFile,
					      MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackAudioChannels(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return -1;
}

// returns true if the track is a media track encrypted according to ismacryp
extern "C" bool MP4IsIsmaCrypMediaTrack(
	MP4FileHandle hFile, MP4TrackId trackId)
{
  bool retval = false;
  uint32_t verb = MP4GetVerbosity(hFile);
  MP4SetVerbosity(hFile, verb & ~(MP4_DETAILS_ERROR));

        if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
               try {
		 retval = ((MP4File*)hFile)->IsIsmaCrypMediaTrack(trackId); 
	       }
               catch (MP4Error* e) {
                       PRINT_ERROR(e);
                       delete e;
               }
        }
	MP4SetVerbosity(hFile, verb);
        return retval;
}


/* generic track properties */

extern "C" bool MP4HaveTrackAtom (MP4FileHandle hFile, 
				  MP4TrackId trackId, 
				  const char *atomName)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->FindTrackAtom(trackId, atomName) != NULL;
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
				  
extern "C" bool MP4GetTrackIntegerProperty (
	MP4FileHandle hFile, MP4TrackId trackId, 
	const char* propName,
	u_int64_t *retvalue)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			*retvalue = ((MP4File*)hFile)->GetTrackIntegerProperty(trackId, 
				propName);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4GetTrackFloatProperty(
	MP4FileHandle hFile, MP4TrackId trackId, 
	const char* propName,
	float *retvalue)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			*retvalue = ((MP4File*)hFile)->GetTrackFloatProperty(trackId, propName);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4GetTrackStringProperty(
	MP4FileHandle hFile, MP4TrackId trackId, 
	const char* propName,
	const char **retvalue)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			*retvalue = ((MP4File*)hFile)->GetTrackStringProperty(trackId, propName);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4GetTrackBytesProperty(
	MP4FileHandle hFile, MP4TrackId trackId, const char* propName, 
	u_int8_t** ppValue, u_int32_t* pValueSize)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->GetTrackBytesProperty(
				trackId, propName, ppValue, pValueSize);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	*ppValue = NULL;
	*pValueSize = 0;
	return false;
}

extern "C" bool MP4SetTrackIntegerProperty(
	MP4FileHandle hFile, MP4TrackId trackId, 
	const char* propName, int64_t value)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetTrackIntegerProperty(trackId, 
				propName, value);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4SetTrackFloatProperty(
	MP4FileHandle hFile, MP4TrackId trackId, 
	const char* propName, float value)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetTrackFloatProperty(trackId, propName, value);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4SetTrackStringProperty(
	MP4FileHandle hFile, MP4TrackId trackId, 
	const char* propName, const char* value)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetTrackStringProperty(trackId, propName, value);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4SetTrackBytesProperty(
	MP4FileHandle hFile, MP4TrackId trackId, 
	const char* propName, const u_int8_t* pValue, u_int32_t valueSize)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetTrackBytesProperty(
				trackId, propName, pValue, valueSize);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

/* sample operations */

extern "C" bool MP4ReadSample(
	/* input parameters */
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	MP4SampleId sampleId,
	/* output parameters */
	u_int8_t** ppBytes, 
	u_int32_t* pNumBytes, 
	MP4Timestamp* pStartTime, 
	MP4Duration* pDuration,
	MP4Duration* pRenderingOffset, 
	bool* pIsSyncSample)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->ReadSample(
				trackId, 
				sampleId, 
				ppBytes, 
				pNumBytes, 
				pStartTime, 
				pDuration, 
				pRenderingOffset, 
				pIsSyncSample);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	*pNumBytes = 0;
	return false;
}

extern "C" bool MP4ReadChunk(
	/* input parameters */
	MP4FileHandle hFile,
	MP4ChunkId trackId, 
	MP4SampleId sampleId,
	/* output parameters */
	u_int8_t** ppBytes, 
	u_int32_t* pNumBytes,
	MP4Timestamp* pStartTime, 
	MP4Duration* pDuration)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) 
	{
		try 
		{
			((MP4File*)hFile)->ReadChunk(
				trackId, 
				sampleId, 
				ppBytes, 
				pNumBytes,
				pStartTime,
				pDuration);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	*pNumBytes = 0;
	return false;
}

extern "C" bool MP4ReadSampleFromTime(
	/* input parameters */
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	MP4Timestamp when,
	/* output parameters */
	u_int8_t** ppBytes, 
	u_int32_t* pNumBytes, 
	MP4Timestamp* pStartTime, 
	MP4Duration* pDuration,
	MP4Duration* pRenderingOffset, 
	bool* pIsSyncSample)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			MP4SampleId sampleId = 
				((MP4File*)hFile)->GetSampleIdFromTime(
					trackId, when, false);

			((MP4File*)hFile)->ReadSample(
				trackId, 
				sampleId, 
				ppBytes, 
				pNumBytes, 
				pStartTime, 
				pDuration, 
				pRenderingOffset, 
				pIsSyncSample);

			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	*pNumBytes = 0;
	return false;
}

extern "C" bool MP4WriteSample(
	MP4FileHandle hFile,
	MP4TrackId trackId,
	const u_int8_t* pBytes, 
	u_int32_t numBytes,
	MP4Duration duration,
	MP4Duration renderingOffset, 
	bool isSyncSample)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->WriteSample(
				trackId, 
				pBytes, 
				numBytes, 
				duration, 
				renderingOffset, 
				isSyncSample);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4CopySample(
	MP4FileHandle srcFile,
	MP4TrackId srcTrackId, 
	MP4SampleId srcSampleId,
	MP4FileHandle dstFile,
	MP4TrackId dstTrackId,
	MP4Duration dstSampleDuration)
{
	bool rc;
	u_int8_t* pBytes = NULL; 
	u_int32_t numBytes = 0;
	MP4Duration sampleDuration;
	MP4Duration renderingOffset;
	bool isSyncSample;

	// Note: we leave it up to the caller to ensure that the
	// source and destination tracks are compatible.
	// i.e. copying audio samples into a video track 
	// is unlikely to do anything useful

	rc = MP4ReadSample(
		srcFile,
		srcTrackId,
		srcSampleId,
		&pBytes,
		&numBytes,
		NULL,
		&sampleDuration,
		&renderingOffset,
		&isSyncSample);

	if (!rc) {
		return false;
	}

	if (dstFile == MP4_INVALID_FILE_HANDLE) {
		dstFile = srcFile;
	}
	if (dstTrackId == MP4_INVALID_TRACK_ID) {
		dstTrackId = srcTrackId;
	}
	if (dstSampleDuration != MP4_INVALID_DURATION) {
		sampleDuration = dstSampleDuration;
	}

	rc = MP4WriteSample(
		dstFile,
		dstTrackId,
		pBytes,
		numBytes,
		sampleDuration,
		renderingOffset,		
		isSyncSample);

	free(pBytes);

	return rc;
}

extern "C" bool MP4EncAndCopySample(
	MP4FileHandle srcFile,
	MP4TrackId srcTrackId, 
	MP4SampleId srcSampleId,
        encryptFunc_t encfcnp,
        u_int32_t encfcnparam1,
	MP4FileHandle dstFile,
	MP4TrackId dstTrackId,
	MP4Duration dstSampleDuration)
{
	bool rc;
	u_int8_t* pBytes = NULL; 
	u_int32_t numBytes = 0;
	u_int8_t* encSampleData = NULL;
	u_int32_t encSampleLength = 0;
	MP4Duration sampleDuration;
	MP4Duration renderingOffset;
	bool isSyncSample;

	// Note: we leave it up to the caller to ensure that the
	// source and destination tracks are compatible.
	// i.e. copying audio samples into a video track 
	// is unlikely to do anything useful

	rc = MP4ReadSample(
		srcFile,
		srcTrackId,
		srcSampleId,
		&pBytes,
		&numBytes,
		NULL,
		&sampleDuration,
		&renderingOffset,
		&isSyncSample);

	if (!rc) {
		return false;
	}

	if (dstFile == MP4_INVALID_FILE_HANDLE) {
		dstFile = srcFile;
	}
	if (dstTrackId == MP4_INVALID_TRACK_ID) {
		dstTrackId = srcTrackId;
	}
	if (dstSampleDuration != MP4_INVALID_DURATION) {
		sampleDuration = dstSampleDuration;
	}

        //if (ismacrypEncryptSampleAddHeader(ismaCryptSId, numBytes, pBytes,
        //                        &encSampleLength, &encSampleData) != 0) {
        if (encfcnp(encfcnparam1, numBytes, pBytes,
				&encSampleLength, &encSampleData) != 0) {
		fprintf(stderr,
			"Can't encrypt the sample and add its header %u\n",
			srcSampleId);
	}	

	rc = MP4WriteSample(
		dstFile,
                dstTrackId,
                encSampleData,
                encSampleLength,
                sampleDuration,
                renderingOffset,
                isSyncSample);
		
	free(pBytes);

	if (encSampleData != NULL) {
	          free(encSampleData);
        }
	
	return rc;
}

extern "C" bool MP4ReferenceSample(
	MP4FileHandle srcFile,
	MP4TrackId srcTrackId, 
	MP4SampleId srcSampleId,
	MP4FileHandle dstFile,
	MP4TrackId dstTrackId,
	MP4Duration dstSampleDuration)
{
	// LATER Not yet implemented
	return false;
}

extern "C" u_int32_t MP4GetSampleSize(
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	MP4SampleId sampleId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetSampleSize(
				trackId, sampleId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" u_int32_t MP4GetTrackMaxSampleSize(
	MP4FileHandle hFile,
	MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackMaxSampleSize(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" MP4SampleId MP4GetSampleIdFromTime(
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	MP4Timestamp when, 
	bool wantSyncSample,
	bool rewind)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetSampleIdFromTime(
				trackId, when, wantSyncSample, rewind);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_SAMPLE_ID;
}

extern "C" MP4ChunkId MP4GetChunkIdFromTime(
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	MP4Timestamp when)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetChunkIdFromTime(
				trackId, when);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_SAMPLE_ID;
}

extern "C" MP4Timestamp MP4GetSampleTime(
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	MP4SampleId sampleId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetSampleTime(
				trackId, sampleId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TIMESTAMP;
}

extern "C" MP4Duration MP4GetSampleDuration(
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	MP4SampleId sampleId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetSampleDuration(
				trackId, sampleId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_DURATION;
}

extern "C" MP4Duration MP4GetSampleRenderingOffset(
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	MP4SampleId sampleId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetSampleRenderingOffset(
				trackId, sampleId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_DURATION;
}

extern "C" bool MP4SetSampleRenderingOffset(
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	MP4SampleId sampleId,
	MP4Duration renderingOffset)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetSampleRenderingOffset(
				trackId, sampleId, renderingOffset);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" int8_t MP4GetSampleSync(
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	MP4SampleId sampleId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetSampleSync(
				trackId, sampleId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return -1;
}


extern "C" u_int64_t MP4ConvertFromMovieDuration(
	MP4FileHandle hFile,
	MP4Duration duration,
	u_int32_t timeScale)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->ConvertFromMovieDuration(
				duration, timeScale);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return (u_int64_t)MP4_INVALID_DURATION;
}

extern "C" u_int64_t MP4ConvertFromTrackTimestamp(
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	MP4Timestamp timeStamp,
	u_int32_t timeScale)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->ConvertFromTrackTimestamp(
				trackId, timeStamp, timeScale);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return (u_int64_t)MP4_INVALID_TIMESTAMP;
}

extern "C" MP4Timestamp MP4ConvertToTrackTimestamp(
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	u_int64_t timeStamp,
	u_int32_t timeScale)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->ConvertToTrackTimestamp(
				trackId, timeStamp, timeScale);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TIMESTAMP;
}

extern "C" u_int64_t MP4ConvertFromTrackDuration(
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	MP4Duration duration,
	u_int32_t timeScale)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->ConvertFromTrackDuration(
				trackId, duration, timeScale);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return (u_int64_t)MP4_INVALID_DURATION;
}

extern "C" MP4Duration MP4ConvertToTrackDuration(
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	u_int64_t duration,
	u_int32_t timeScale)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->ConvertToTrackDuration(
				trackId, duration, timeScale);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_DURATION;
}

extern "C" bool MP4GetHintTrackRtpPayload(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId,
	char** ppPayloadName,
	u_int8_t* pPayloadNumber,
	u_int16_t* pMaxPayloadSize,
	char **ppEncodingParams)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->GetHintTrackRtpPayload(
				hintTrackId, ppPayloadName, pPayloadNumber, pMaxPayloadSize,
				ppEncodingParams);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4SetHintTrackRtpPayload(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId,
	const char* pPayloadName,
	u_int8_t* pPayloadNumber,
	u_int16_t maxPayloadSize,
	const char *encode_params,
	bool include_rtp_map,
	bool include_mpeg4_esid)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetHintTrackRtpPayload(
				hintTrackId, pPayloadName, pPayloadNumber, maxPayloadSize, encode_params,
				include_rtp_map, include_mpeg4_esid);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" const char* MP4GetSessionSdp(
	MP4FileHandle hFile)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetSessionSdp();
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return NULL;
}

extern "C" bool MP4SetSessionSdp(
	MP4FileHandle hFile,
	const char* sdpString)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetSessionSdp(sdpString);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4AppendSessionSdp(
	MP4FileHandle hFile,
	const char* sdpString)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->AppendSessionSdp(sdpString);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" const char* MP4GetHintTrackSdp(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetHintTrackSdp(hintTrackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return NULL;
}

extern "C" bool MP4SetHintTrackSdp(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId,
	const char* sdpString)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetHintTrackSdp(hintTrackId, sdpString);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4AppendHintTrackSdp(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId,
	const char* sdpString)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->AppendHintTrackSdp(hintTrackId, sdpString);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" MP4TrackId MP4GetHintTrackReferenceTrackId(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->
				GetHintTrackReferenceTrackId(hintTrackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TRACK_ID;
}

extern "C" bool MP4ReadRtpHint(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId,
	MP4SampleId hintSampleId,
	u_int16_t* pNumPackets)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->ReadRtpHint(
				hintTrackId, hintSampleId, pNumPackets);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" u_int16_t MP4GetRtpHintNumberOfPackets(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetRtpHintNumberOfPackets(hintTrackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" int8_t MP4GetRtpPacketBFrame(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId,
	u_int16_t packetIndex)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->
				GetRtpPacketBFrame(hintTrackId, packetIndex);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return -1;
}

extern "C" int32_t MP4GetRtpPacketTransmitOffset(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId,
	u_int16_t packetIndex)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->
				GetRtpPacketTransmitOffset(hintTrackId, packetIndex);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" bool MP4ReadRtpPacket(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId,
	u_int16_t packetIndex,
	u_int8_t** ppBytes, 
	u_int32_t* pNumBytes,
	u_int32_t ssrc,
	bool includeHeader,
	bool includePayload)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->ReadRtpPacket(
				hintTrackId, packetIndex, 
				ppBytes, pNumBytes, 
				ssrc, includeHeader, includePayload);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" MP4Timestamp MP4GetRtpTimestampStart(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetRtpTimestampStart(hintTrackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TIMESTAMP;
}

extern "C" bool MP4SetRtpTimestampStart(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId,
	MP4Timestamp rtpStart)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetRtpTimestampStart(
				hintTrackId, rtpStart);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4AddRtpHint(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId)
{
	return MP4AddRtpVideoHint(hFile, hintTrackId, false, 0);
}

extern "C" bool MP4AddRtpVideoHint(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId,
	bool isBframe, 
	u_int32_t timestampOffset)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->AddRtpHint(hintTrackId, 
				isBframe, timestampOffset);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4AddRtpPacket(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId,
	bool setMbit,
	int32_t transmitOffset)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->AddRtpPacket(
				hintTrackId, setMbit, transmitOffset);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4AddRtpImmediateData(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId,
	const u_int8_t* pBytes,
	u_int32_t numBytes)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->AddRtpImmediateData(hintTrackId, 
				pBytes, numBytes);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4AddRtpSampleData(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId,
	MP4SampleId sampleId,
	u_int32_t dataOffset,
	u_int32_t dataLength)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->AddRtpSampleData(
				hintTrackId, sampleId, dataOffset, dataLength);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4AddRtpESConfigurationPacket(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->AddRtpESConfigurationPacket(hintTrackId);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4WriteRtpHint(
	MP4FileHandle hFile,
	MP4TrackId hintTrackId,
	MP4Duration duration,
	bool isSyncSample)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->WriteRtpHint(
				hintTrackId, duration, isSyncSample);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}
/* 3GPP specific operations */

extern "C" bool MP4Make3GPCompliant(
	const MP4_FILENAME_CHAR* fileName,
	u_int32_t verbosity,
	char* majorBrand,
	u_int32_t minorVersion,
	char** supportedBrands,
	u_int32_t supportedBrandsCount,
	bool deleteIodsAtom)
{
	MP4File* pFile;
	pFile = NULL;

	try {
		pFile = new MP4File(verbosity);
		pFile->Modify(fileName);
		pFile->Make3GPCompliant(fileName, majorBrand, minorVersion, supportedBrands, supportedBrandsCount, deleteIodsAtom);
		pFile->Close();
		delete pFile;
		return true;
	}
	catch (MP4Error* e) {
		VERBOSE_ERROR(verbosity, e->Print());
		delete e;
	}
	delete pFile;
	return false;
}

/* ISMA specific operations */

extern "C" bool MP4MakeIsmaCompliant(
	const MP4_FILENAME_CHAR* fileName, 
	u_int32_t verbosity,
	bool addIsmaComplianceSdp)
{
	MP4File* pFile;
	pFile = NULL;

	try {
		pFile = new MP4File(verbosity);
		pFile->Modify(fileName);
		pFile->MakeIsmaCompliant(addIsmaComplianceSdp);
		pFile->Close();
		delete pFile;
		return true;
	}
	catch (MP4Error* e) {
		VERBOSE_ERROR(verbosity, e->Print());
		delete e;
	}
	delete pFile;
	return false;
}

extern "C" char* MP4MakeIsmaSdpIod(
	u_int8_t videoProfile,
	u_int32_t videoBitrate,
	u_int8_t* videoConfig,
	u_int32_t videoConfigLength,
	u_int8_t audioProfile,
	u_int32_t audioBitrate,
	u_int8_t* audioConfig,
	u_int32_t audioConfigLength,
	u_int32_t verbosity)
{
	MP4File* pFile = NULL;

	try {
		pFile = new MP4File(verbosity);

		u_int8_t* pBytes = NULL;
		u_int64_t numBytes = 0;

		pFile->CreateIsmaIodFromParams(
			videoProfile,
			videoBitrate,
			videoConfig,
			videoConfigLength,
			audioProfile,
			audioBitrate,
			audioConfig,
			audioConfigLength,
			&pBytes,
			&numBytes);

		char* iodBase64 = 
			MP4ToBase64(pBytes, numBytes);
		MP4Free(pBytes);

		char* sdpIod = 
			(char*)MP4Malloc(strlen(iodBase64) + 64);
		snprintf(sdpIod, strlen(iodBase64) + 64, 
			"a=mpeg4-iod: \042data:application/mpeg4-iod;base64,%s\042",
			iodBase64);
		MP4Free(iodBase64);

		delete pFile;

		return sdpIod;
	}
	catch (MP4Error* e) {
		VERBOSE_ERROR(verbosity, e->Print());
		delete e;
	}
	return NULL;
}

/* Edit list */

extern "C" MP4EditId MP4AddTrackEdit(
	MP4FileHandle hFile,
	MP4TrackId trackId,
	MP4EditId editId,
	MP4Timestamp startTime,
	MP4Duration duration,
	bool dwell)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			MP4EditId newEditId =
				((MP4File*)hFile)->AddTrackEdit(trackId, editId);

			if (newEditId != MP4_INVALID_EDIT_ID) {
				((MP4File*)hFile)->SetTrackEditMediaStart(
					trackId, newEditId, startTime);
				((MP4File*)hFile)->SetTrackEditDuration(
					trackId, newEditId, duration);
				((MP4File*)hFile)->SetTrackEditDwell(
					trackId, newEditId, dwell);
			}

			return newEditId;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_EDIT_ID;
}

extern "C" bool MP4DeleteTrackEdit(
	MP4FileHandle hFile,
	MP4TrackId trackId,
	MP4EditId editId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->DeleteTrackEdit(trackId, editId);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" u_int32_t MP4GetTrackNumberOfEdits(
	MP4FileHandle hFile,
	MP4TrackId trackId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackNumberOfEdits(trackId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return 0;
}

extern "C" MP4Timestamp MP4GetTrackEditMediaStart(
	MP4FileHandle hFile,
	MP4TrackId trackId,
	MP4EditId editId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackEditMediaStart(
				trackId, editId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_TIMESTAMP;
}

extern "C" MP4Duration MP4GetTrackEditTotalDuration(
	MP4FileHandle hFile,
	MP4TrackId trackId,
	MP4EditId editId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackEditTotalDuration(
				trackId, editId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_DURATION;
}

extern "C" bool MP4SetTrackEditMediaStart(
	MP4FileHandle hFile,
	MP4TrackId trackId,
	MP4EditId editId,
	MP4Timestamp startTime)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetTrackEditMediaStart(
				trackId, editId, startTime);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" MP4Duration MP4GetTrackEditDuration(
	MP4FileHandle hFile,
	MP4TrackId trackId,
	MP4EditId editId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackEditDuration(trackId, editId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_DURATION;
}

extern "C" bool MP4SetTrackEditDuration(
	MP4FileHandle hFile,
	MP4TrackId trackId,
	MP4EditId editId,
	MP4Duration duration)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetTrackEditDuration(trackId, editId, duration);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" int8_t MP4GetTrackEditDwell(
	MP4FileHandle hFile,
	MP4TrackId trackId,
	MP4EditId editId)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetTrackEditDwell(trackId, editId);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return -1;
}

extern "C" bool MP4SetTrackEditDwell(
	MP4FileHandle hFile,
	MP4TrackId trackId,
	MP4EditId editId,
	bool dwell)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			((MP4File*)hFile)->SetTrackEditDwell(trackId, editId, dwell);
			return true;
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return false;
}

extern "C" bool MP4ReadSampleFromEditTime(
	/* input parameters */
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	MP4Timestamp when,
	/* output parameters */
	u_int8_t** ppBytes, 
	u_int32_t* pNumBytes, 
	MP4Timestamp* pStartTime, 
	MP4Duration* pDuration,
	MP4Duration* pRenderingOffset, 
	bool* pIsSyncSample)
{
	MP4SampleId sampleId = 
		MP4GetSampleIdFromEditTime(
			hFile,
			trackId, 
			when, 
			pStartTime,
			pDuration);

	return MP4ReadSample(
		hFile,
		trackId, 
		sampleId, 
		ppBytes, 
		pNumBytes, 
		NULL,
		NULL, 
		pRenderingOffset, 
		pIsSyncSample);
}

extern "C" MP4SampleId MP4GetSampleIdFromEditTime(
	MP4FileHandle hFile,
	MP4TrackId trackId, 
	MP4Timestamp when,
	MP4Timestamp* pStartTime,
	MP4Duration* pDuration)
{
	if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
		try {
			return ((MP4File*)hFile)->GetSampleIdFromEditTime(
				trackId, when, pStartTime, pDuration);
		}
		catch (MP4Error* e) {
			PRINT_ERROR(e);
			delete e;
		}
	}
	return MP4_INVALID_SAMPLE_ID;
}

/* Utlities */

extern "C" char* MP4BinaryToBase16(
	const u_int8_t* pData, 
	u_int32_t dataSize)
{
	if (pData || dataSize == 0) {
		try {
			return MP4ToBase16(pData, dataSize);
		}
		catch (MP4Error* e) {
			delete e;
		}
	}
	return NULL;
}

extern "C" char* MP4BinaryToBase64(
	const u_int8_t* pData, 
	u_int32_t dataSize)
{
	if (pData || dataSize == 0) {
		try {
			return MP4ToBase64(pData, dataSize);
		}
		catch (MP4Error* e) {
			delete e;
		}
	}
	return NULL;
}

/* iTunes meta data handling */
extern "C" bool MP4GetMetadataByIndex(MP4FileHandle hFile, u_int32_t index,
				      char** ppName,
				      u_int8_t** ppValue, u_int32_t* pValueSize)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataByIndex(
						   index, ppName, ppValue, pValueSize);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4MetadataDelete(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->MetadataDelete();
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4SetMetadataName(MP4FileHandle hFile,
                                   const char* value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataString("\251nam", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataName(MP4FileHandle hFile,
				   char** value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataString("\251nam", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4DeleteMetadataName(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("\251nam");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4SetMetadataWriter(MP4FileHandle hFile,
				     const char* value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataString("\251wrt", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataWriter(MP4FileHandle hFile,
				     char** value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataString("\251wrt", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4DeleteMetadataWriter(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("\251wrt");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4SetMetadataAlbum(MP4FileHandle hFile,
				    const char* value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataString("\251alb", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataAlbum(MP4FileHandle hFile,
				    char** value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataString("\251alb", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4DeleteMetadataAlbum(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("\251alb");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4SetMetadataArtist(MP4FileHandle hFile,
				     const char* value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataString("\251ART", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataArtist(MP4FileHandle hFile,
				     char** value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataString("\251ART", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4DeleteMetadataArtist(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("\251ART");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4SetMetadataRating(MP4FileHandle hFile,
				     const char* value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataString("rate", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataRating(MP4FileHandle hFile,
				     char** value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataString("rate", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4DeleteMetadataRating(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("rate");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4SetMetadataTool(MP4FileHandle hFile,
				   const char* value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataString("\251too", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataTool(MP4FileHandle hFile,
				   char** value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataString("\251too", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4DeleteMetadataTool(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("\251too");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4SetMetadataComment(MP4FileHandle hFile,
				      const char* value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataString("\251cmt", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataComment(MP4FileHandle hFile,
				      char** value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataString("\251cmt", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4DeleteMetadataComment(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("\251cmt");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4SetMetadataYear(MP4FileHandle hFile,
				   const char* value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataString("\251day", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataYear(MP4FileHandle hFile,
				   char** value)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataString("\251day", value);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4DeleteMetadataYear(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("\251day");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4SetMetadataTrack(MP4FileHandle hFile,
				    u_int16_t track, u_int16_t totalTracks)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataTrack(track, totalTracks);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataTrack(MP4FileHandle hFile,
				    u_int16_t* track, u_int16_t* totalTracks)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataTrack(track, totalTracks);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4DeleteMetadataTrack(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("trkn");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4SetMetadataDisk(MP4FileHandle hFile,
				   u_int16_t disk, u_int16_t totalDisks)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataDisk(disk, totalDisks);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataDisk(MP4FileHandle hFile,
				   u_int16_t* disk, u_int16_t* totalDisks)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataDisk(disk, totalDisks);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4DeleteMetadataDisk(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("disk");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4SetMetadataGenre(MP4FileHandle hFile, const char *genre)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataGenre(genre);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataGenre(MP4FileHandle hFile, char **genre)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataGenre(genre);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4DeleteMetadataGenre(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataGenre();
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4SetMetadataGrouping(MP4FileHandle hFile, const char *grouping)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataString("\251grp", grouping);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataGrouping(MP4FileHandle hFile, char **grouping)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataString("\251grp", grouping);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4DeleteMetadataGrouping(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("\251grp");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4SetMetadataTempo(MP4FileHandle hFile, u_int16_t tempo)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataTempo(tempo);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataTempo(MP4FileHandle hFile, u_int16_t* tempo)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataTempo(tempo);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4DeleteMetadataTempo(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("tmpo");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4SetMetadataCompilation(MP4FileHandle hFile, u_int8_t cpl)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataUint8("cpil", cpl & 0x1);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataCompilation(MP4FileHandle hFile, u_int8_t* cpl)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataUint8("cpil", cpl);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4DeleteMetadataCompilation(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("cpil");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4SetMetadataPartOfGaplessAlbum (MP4FileHandle hFile, 
						  u_int8_t pgap)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataUint8("pgap", pgap & 0x1);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataPartOfGaplessAlbum (MP4FileHandle hFile, 
						  u_int8_t* pgap)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataUint8("pgap", pgap);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4DeleteMetadataPartOfGaplessAlbum (MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("pgap");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4SetMetadataCoverArt(MP4FileHandle hFile, u_int8_t *coverArt, u_int32_t size, int flags)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataCoverArt(coverArt, size, flags);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataCoverArt(MP4FileHandle hFile, u_int8_t **coverArt, u_int32_t* size, int *flags, uint32_t index)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataCoverArt(coverArt, size, index);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" u_int32_t MP4GetMetadataCoverArtCount(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataCoverArtCount();
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
} 

extern "C" bool MP4DeleteMetadataCoverArt(MP4FileHandle hFile)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataAtom("covr");
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
extern "C" bool MP4SetMetadataAlbumArtist (MP4FileHandle hFile,
					   const char* value)
{
 if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
   try {
     return ((MP4File*)hFile)->SetMetadataString("aART", value);
   }
   catch (MP4Error* e) {
     PRINT_ERROR(e);
     delete e;
   }
 }
 return false;
}

extern "C" bool MP4GetMetadataAlbumArtist (MP4FileHandle hFile,
					   char** value)
{
 if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
   try {
     return ((MP4File*)hFile)->GetMetadataString("aART", value);
   }
   catch (MP4Error* e) {
     PRINT_ERROR(e);
     delete e;
   }
 }
 return false;
}

extern "C" bool MP4DeleteMetadataAlbumArtist (MP4FileHandle hFile)
{
 if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
   try {
     return ((MP4File*)hFile)->DeleteMetadataAtom("aART");
   }
   catch (MP4Error* e) {
     PRINT_ERROR(e);
     delete e;
   }
 }
 return false;
} 

extern "C" bool MP4SetMetadataFreeForm(MP4FileHandle hFile, 
				       const char *name,
				       const u_int8_t* pValue, 
				       u_int32_t valueSize,
							 const char *owner)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->SetMetadataFreeForm(name, pValue, valueSize, owner);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}
 
extern "C" bool MP4GetMetadataFreeForm(MP4FileHandle hFile, const char *name,
				       u_int8_t** pValue, u_int32_t* valueSize, const char *owner)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->GetMetadataFreeForm(name, pValue, valueSize, owner);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4DeleteMetadataFreeForm(MP4FileHandle hFile, const char *name, const char *owner)
{
  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->DeleteMetadataFreeForm(name, owner);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" bool MP4Get3GPMetadata(MP4FileHandle hFile, const char *name, uint16_t **value)
{
 if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
   try {
     return ((MP4File*)hFile)->Get3GPMetadataString(name, value);
   }
   catch (MP4Error* e) {
     PRINT_ERROR(e);
     delete e;
   }
 }
 return false;
}

extern "C" bool MP4Set3GPMetadata(MP4FileHandle hFile, const char *name, const uint16_t* value)
{
 if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
   try {
     return ((MP4File*)hFile)->Set3GPMetadataString(name, value);
   }
   catch (MP4Error* e) {
     PRINT_ERROR(e);
     delete e;
   }
 }
 return false;
}

extern "C" bool MP4Get3GPMetadataInteger(MP4FileHandle hFile, const char *name, uint64_t *value)
{
 if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
   try {
     return ((MP4File*)hFile)->Get3GPMetadataInteger(name, value);
   }
   catch (MP4Error* e) {
     PRINT_ERROR(e);
     delete e;
   }
 }
 return false;
}

bool MP4Set3GPMetadataInteger(MP4FileHandle hFile, const char *name, uint64_t value)
{
	 if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
   try {
     return ((MP4File*)hFile)->Set3GPMetadataInteger(name, value);
   }
   catch (MP4Error* e) {
     PRINT_ERROR(e);
     delete e;
   }
 }
 return false;
}
extern "C" bool MP4Delete3GPMetadata(MP4FileHandle hFile, const char *name)
{
	  if (MP4_IS_VALID_FILE_HANDLE(hFile)) {
    try {
      return ((MP4File*)hFile)->Delete3GPMetadataAtom(name);
    }
    catch (MP4Error* e) {
      PRINT_ERROR(e);
      delete e;
    }
  }
  return false;
}

extern "C" void MP4Free (void *p)
{
  if (p != NULL)
    free(p);
}