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/*
* $Id$
* Copyright (c) 2008-2010, Matroska (non-profit organisation)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the Matroska assocation nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY the Matroska association ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL The Matroska Foundation BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "ebml/ebml.h"
#include "ebml/ebml_internal.h"
static err_t ReadData(ebml_binary *Element, stream *Input, const ebml_parser_context *ParserContext, bool_t AllowDummyElt, int Scope, size_t DepthCheckCRC)
{
err_t Result;
Element->Base.bValueIsSet = 0;
if (Scope == SCOPE_NO_DATA)
return ERR_NONE;
if (Stream_Seek(Input,EBML_ElementPositionData((ebml_element*)Element),SEEK_SET)==INVALID_FILEPOS_T)
{
Result = ERR_READ;
goto failed;
}
if (!ArrayResize(&Element->Data,(size_t)Element->Base.DataSize,0))
{
Result = ERR_OUT_OF_MEMORY;
goto failed;
}
Result = Stream_Read(Input,ARRAYBEGIN(Element->Data,void),(size_t)Element->Base.DataSize,NULL);
if (Result == ERR_NONE)
Element->Base.bValueIsSet = 1;
failed:
return Result;
}
#if defined(CONFIG_EBML_WRITING)
static err_t RenderData(ebml_binary *Element, stream *Output, bool_t bForceWithoutMandatory, bool_t bWithDefault, filepos_t *Rendered)
{
size_t Written;
err_t Err = Stream_Write(Output,ARRAYBEGIN(Element->Data,uint8_t),ARRAYCOUNT(Element->Data,uint8_t),&Written);
if (Rendered)
*Rendered = Written;
return Err;
}
#endif
static void Delete(ebml_binary *Element)
{
ArrayClear(&Element->Data);
}
static bool_t IsDefaultValue(const ebml_binary *Element)
{
return 0; // TODO: a default binary value needs a size too (use a structure to set the value in the structure)
}
static filepos_t UpdateDataSize(ebml_binary *Element, bool_t bWithDefault, bool_t bForceWithoutMandatory)
{
Element->Base.DataSize = ARRAYCOUNT(Element->Data,uint8_t);
return INHERITED(Element,ebml_element_vmt,EBML_BINARY_CLASS)->UpdateDataSize(Element, bWithDefault, bForceWithoutMandatory);
}
static bool_t ValidateSize(const ebml_element *p)
{
return EBML_ElementIsFiniteSize(p);
}
static ebml_binary *Copy(const ebml_binary *Element, const void *Cookie)
{
ebml_binary *Result = (ebml_binary*)EBML_ElementCreate(Element,Element->Base.Context,0,Cookie);
if (Result)
{
ArrayCopy(&Result->Data,&Element->Data);
Result->Base.bValueIsSet = Element->Base.bValueIsSet;
Result->Base.DataSize = Element->Base.DataSize;
Result->Base.ElementPosition = Element->Base.ElementPosition;
Result->Base.SizeLength = Element->Base.SizeLength;
Result->Base.SizePosition = Element->Base.SizePosition;
Result->Base.bNeedDataSizeUpdate = Element->Base.bNeedDataSizeUpdate;
}
return Result;
}
META_START(EBMLBinary_Class,EBML_BINARY_CLASS)
META_CLASS(SIZE,sizeof(ebml_binary))
META_CLASS(DELETE,Delete)
META_DATA(TYPE_ARRAY,0,ebml_binary,Data)
META_VMT(TYPE_FUNC,ebml_element_vmt,ValidateSize,ValidateSize)
META_VMT(TYPE_FUNC,ebml_element_vmt,ReadData,ReadData)
META_VMT(TYPE_FUNC,ebml_element_vmt,IsDefaultValue,IsDefaultValue)
META_VMT(TYPE_FUNC,ebml_element_vmt,UpdateDataSize,UpdateDataSize)
#if defined(CONFIG_EBML_WRITING)
META_VMT(TYPE_FUNC,ebml_element_vmt,RenderData,RenderData)
#endif
META_VMT(TYPE_FUNC,ebml_element_vmt,Copy,Copy)
META_END(EBML_ELEMENT_CLASS)
err_t EBML_BinarySetData(ebml_binary *Element, const uint8_t *Data, size_t DataSize)
{
if (!ArrayResize(&Element->Data,DataSize,0))
return ERR_OUT_OF_MEMORY;
memcpy(ARRAYBEGIN(Element->Data,void),Data,DataSize);
Element->Base.DataSize = DataSize;
Element->Base.bNeedDataSizeUpdate = 0;
Element->Base.bValueIsSet = 1;
return ERR_NONE;
}
const uint8_t *EBML_BinaryGetData(ebml_binary *Element)
{
if (!ARRAYCOUNT(Element->Data,uint8_t))
return NULL;
return ARRAYBEGIN(Element->Data,uint8_t);
}
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