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// CreateCoder.cpp
#include "StdAfx.h"
#include "../../Windows/Defs.h"
#include "../../Windows/PropVariant.h"
#include "CreateCoder.h"
#include "FilterCoder.h"
#include "RegisterCodec.h"
static const unsigned int kNumCodecsMax = 64;
unsigned int g_NumCodecs = 0;
const CCodecInfo *g_Codecs[kNumCodecsMax];
void RegisterCodec(const CCodecInfo *codecInfo)
{
if (g_NumCodecs < kNumCodecsMax)
g_Codecs[g_NumCodecs++] = codecInfo;
}
#ifdef EXTERNAL_CODECS
static HRESULT ReadNumberOfStreams(ICompressCodecsInfo *codecsInfo, UInt32 index, PROPID propID, UInt32 &res)
{
NWindows::NCOM::CPropVariant prop;
RINOK(codecsInfo->GetProperty(index, propID, &prop));
if (prop.vt == VT_EMPTY)
res = 1;
else if (prop.vt == VT_UI4)
res = prop.ulVal;
else
return E_INVALIDARG;
return S_OK;
}
static HRESULT ReadIsAssignedProp(ICompressCodecsInfo *codecsInfo, UInt32 index, PROPID propID, bool &res)
{
NWindows::NCOM::CPropVariant prop;
RINOK(codecsInfo->GetProperty(index, propID, &prop));
if (prop.vt == VT_EMPTY)
res = true;
else if (prop.vt == VT_BOOL)
res = VARIANT_BOOLToBool(prop.boolVal);
else
return E_INVALIDARG;
return S_OK;
}
HRESULT LoadExternalCodecs(ICompressCodecsInfo *codecsInfo, CObjectVector<CCodecInfoEx> &externalCodecs)
{
UInt32 num;
RINOK(codecsInfo->GetNumberOfMethods(&num));
for (UInt32 i = 0; i < num; i++)
{
CCodecInfoEx info;
NWindows::NCOM::CPropVariant prop;
RINOK(codecsInfo->GetProperty(i, NMethodPropID::kID, &prop));
// if (prop.vt != VT_BSTR)
// info.Id.IDSize = (Byte)SysStringByteLen(prop.bstrVal);
// memmove(info.Id.ID, prop.bstrVal, info.Id.IDSize);
if (prop.vt != VT_UI8)
{
continue; // old Interface
// return E_INVALIDARG;
}
info.Id = prop.uhVal.QuadPart;
prop.Clear();
RINOK(codecsInfo->GetProperty(i, NMethodPropID::kName, &prop));
if (prop.vt == VT_BSTR)
info.Name = prop.bstrVal;
else if (prop.vt != VT_EMPTY)
return E_INVALIDARG;;
RINOK(ReadNumberOfStreams(codecsInfo, i, NMethodPropID::kInStreams, info.NumInStreams));
RINOK(ReadNumberOfStreams(codecsInfo, i, NMethodPropID::kOutStreams, info.NumOutStreams));
RINOK(ReadIsAssignedProp(codecsInfo, i, NMethodPropID::kEncoderIsAssigned, info.EncoderIsAssigned));
RINOK(ReadIsAssignedProp(codecsInfo, i, NMethodPropID::kDecoderIsAssigned, info.DecoderIsAssigned));
externalCodecs.Add(info);
}
return S_OK;
}
#endif
bool FindMethod(
#ifdef EXTERNAL_CODECS
ICompressCodecsInfo * /* codecsInfo */, const CObjectVector<CCodecInfoEx> *externalCodecs,
#endif
const UString &name,
CMethodId &methodId, UInt32 &numInStreams, UInt32 &numOutStreams)
{
UInt32 i;
for (i = 0; i < g_NumCodecs; i++)
{
const CCodecInfo &codec = *g_Codecs[i];
if (name.CompareNoCase(codec.Name) == 0)
{
methodId = codec.Id;
numInStreams = codec.NumInStreams;
numOutStreams = 1;
return true;
}
}
#ifdef EXTERNAL_CODECS
if (externalCodecs)
for (i = 0; i < (UInt32)externalCodecs->Size(); i++)
{
const CCodecInfoEx &codec = (*externalCodecs)[i];
if (codec.Name.CompareNoCase(name) == 0)
{
methodId = codec.Id;
numInStreams = codec.NumInStreams;
numOutStreams = codec.NumOutStreams;
return true;
}
}
#endif
return false;
}
bool FindMethod(
#ifdef EXTERNAL_CODECS
ICompressCodecsInfo * /* codecsInfo */, const CObjectVector<CCodecInfoEx> *externalCodecs,
#endif
CMethodId methodId, UString &name)
{
UInt32 i;
for (i = 0; i < g_NumCodecs; i++)
{
const CCodecInfo &codec = *g_Codecs[i];
if (methodId == codec.Id)
{
name = codec.Name;
return true;
}
}
#ifdef EXTERNAL_CODECS
if (externalCodecs)
for (i = 0; i < (UInt32)externalCodecs->Size(); i++)
{
const CCodecInfoEx &codec = (*externalCodecs)[i];
if (methodId == codec.Id)
{
name = codec.Name;
return true;
}
}
#endif
return false;
}
HRESULT CreateCoder(
DECL_EXTERNAL_CODECS_LOC_VARS
CMethodId methodId,
CMyComPtr<ICompressFilter> &filter,
CMyComPtr<ICompressCoder> &coder,
CMyComPtr<ICompressCoder2> &coder2,
bool encode, bool onlyCoder)
{
bool created = false;
UInt32 i;
for (i = 0; i < g_NumCodecs; i++)
{
const CCodecInfo &codec = *g_Codecs[i];
if (codec.Id == methodId)
{
if (encode)
{
if (codec.CreateEncoder)
{
void *p = codec.CreateEncoder();
if (codec.IsFilter) filter = (ICompressFilter *)p;
else if (codec.NumInStreams == 1) coder = (ICompressCoder *)p;
else coder2 = (ICompressCoder2 *)p;
created = (p != 0);
break;
}
}
else
if (codec.CreateDecoder)
{
void *p = codec.CreateDecoder();
if (codec.IsFilter) filter = (ICompressFilter *)p;
else if (codec.NumInStreams == 1) coder = (ICompressCoder *)p;
else coder2 = (ICompressCoder2 *)p;
created = (p != 0);
break;
}
}
}
#ifdef EXTERNAL_CODECS
if (!created && externalCodecs)
for (i = 0; i < (UInt32)externalCodecs->Size(); i++)
{
const CCodecInfoEx &codec = (*externalCodecs)[i];
if (codec.Id == methodId)
{
if (encode)
{
if (codec.EncoderIsAssigned)
{
if (codec.IsSimpleCodec())
{
HRESULT result = codecsInfo->CreateEncoder(i, &IID_ICompressCoder, (void **)&coder);
if (result != S_OK && result != E_NOINTERFACE && result != CLASS_E_CLASSNOTAVAILABLE)
return result;
if (!coder)
{
RINOK(codecsInfo->CreateEncoder(i, &IID_ICompressFilter, (void **)&filter));
}
}
else
{
RINOK(codecsInfo->CreateEncoder(i, &IID_ICompressCoder2, (void **)&coder2));
}
break;
}
}
else
if (codec.DecoderIsAssigned)
{
if (codec.IsSimpleCodec())
{
HRESULT result = codecsInfo->CreateDecoder(i, &IID_ICompressCoder, (void **)&coder);
if (result != S_OK && result != E_NOINTERFACE && result != CLASS_E_CLASSNOTAVAILABLE)
return result;
if (!coder)
{
RINOK(codecsInfo->CreateDecoder(i, &IID_ICompressFilter, (void **)&filter));
}
}
else
{
RINOK(codecsInfo->CreateDecoder(i, &IID_ICompressCoder2, (void **)&coder2));
}
break;
}
}
}
#endif
if (onlyCoder && filter)
{
CFilterCoder *coderSpec = new CFilterCoder;
coder = coderSpec;
coderSpec->Filter = filter;
}
return S_OK;
}
HRESULT CreateCoder(
DECL_EXTERNAL_CODECS_LOC_VARS
CMethodId methodId,
CMyComPtr<ICompressCoder> &coder,
CMyComPtr<ICompressCoder2> &coder2,
bool encode)
{
CMyComPtr<ICompressFilter> filter;
return CreateCoder(
EXTERNAL_CODECS_LOC_VARS
methodId,
filter, coder, coder2, encode, true);
}
HRESULT CreateCoder(
DECL_EXTERNAL_CODECS_LOC_VARS
CMethodId methodId,
CMyComPtr<ICompressCoder> &coder, bool encode)
{
CMyComPtr<ICompressFilter> filter;
CMyComPtr<ICompressCoder2> coder2;
return CreateCoder(
EXTERNAL_CODECS_LOC_VARS
methodId,
coder, coder2, encode);
}
HRESULT CreateFilter(
DECL_EXTERNAL_CODECS_LOC_VARS
CMethodId methodId,
CMyComPtr<ICompressFilter> &filter,
bool encode)
{
CMyComPtr<ICompressCoder> coder;
CMyComPtr<ICompressCoder2> coder2;
return CreateCoder(
EXTERNAL_CODECS_LOC_VARS
methodId,
filter, coder, coder2, encode, false);
}
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