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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 kNumCodecsMax = 64;
unsigned g_NumCodecs = 0;
const CCodecInfo *g_Codecs[kNumCodecsMax];
// We use g_ExternalCodecs in other stages.
/*
#ifdef EXTERNAL_CODECS
extern CExternalCodecs g_ExternalCodecs;
#define CHECK_GLOBAL_CODECS \
if (!__externalCodecs || !__externalCodecs->IsSet()) __externalCodecs = &g_ExternalCodecs;
#endif
*/
#define CHECK_GLOBAL_CODECS
void RegisterCodec(const CCodecInfo *codecInfo) throw()
{
if (g_NumCodecs < kNumCodecsMax)
g_Codecs[g_NumCodecs++] = codecInfo;
}
static const unsigned kNumHashersMax = 16;
unsigned g_NumHashers = 0;
const CHasherInfo *g_Hashers[kNumHashersMax];
void RegisterHasher(const CHasherInfo *hashInfo) throw()
{
if (g_NumHashers < kNumHashersMax)
g_Hashers[g_NumHashers++] = hashInfo;
}
#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 CExternalCodecs::Load()
{
Codecs.Clear();
Hashers.Clear();
if (GetCodecs)
{
CCodecInfoEx info;
UString s;
UInt32 num;
RINOK(GetCodecs->GetNumMethods(&num));
for (UInt32 i = 0; i < num; i++)
{
NWindows::NCOM::CPropVariant prop;
RINOK(GetCodecs->GetProperty(i, NMethodPropID::kID, &prop));
if (prop.vt != VT_UI8)
continue; // old Interface
info.Id = prop.uhVal.QuadPart;
prop.Clear();
info.Name.Empty();
RINOK(GetCodecs->GetProperty(i, NMethodPropID::kName, &prop));
if (prop.vt == VT_BSTR)
info.Name.SetFromWStr_if_Ascii(prop.bstrVal);
else if (prop.vt != VT_EMPTY)
continue;
RINOK(ReadNumberOfStreams(GetCodecs, i, NMethodPropID::kPackStreams, info.NumStreams));
{
UInt32 numUnpackStreams = 1;
RINOK(ReadNumberOfStreams(GetCodecs, i, NMethodPropID::kUnpackStreams, numUnpackStreams));
if (numUnpackStreams != 1)
continue;
}
RINOK(ReadIsAssignedProp(GetCodecs, i, NMethodPropID::kEncoderIsAssigned, info.EncoderIsAssigned));
RINOK(ReadIsAssignedProp(GetCodecs, i, NMethodPropID::kDecoderIsAssigned, info.DecoderIsAssigned));
Codecs.Add(info);
}
}
if (GetHashers)
{
UInt32 num = GetHashers->GetNumHashers();
CHasherInfoEx info;
for (UInt32 i = 0; i < num; i++)
{
NWindows::NCOM::CPropVariant prop;
RINOK(GetHashers->GetHasherProp(i, NMethodPropID::kID, &prop));
if (prop.vt != VT_UI8)
continue;
info.Id = prop.uhVal.QuadPart;
prop.Clear();
info.Name.Empty();
RINOK(GetHashers->GetHasherProp(i, NMethodPropID::kName, &prop));
if (prop.vt == VT_BSTR)
info.Name.SetFromWStr_if_Ascii(prop.bstrVal);
else if (prop.vt != VT_EMPTY)
continue;
Hashers.Add(info);
}
}
return S_OK;
}
#endif
int FindMethod_Index(
DECL_EXTERNAL_CODECS_LOC_VARS
const AString &name,
bool encode,
CMethodId &methodId,
UInt32 &numStreams)
{
unsigned i;
for (i = 0; i < g_NumCodecs; i++)
{
const CCodecInfo &codec = *g_Codecs[i];
if ((encode ? codec.CreateEncoder : codec.CreateDecoder)
&& StringsAreEqualNoCase_Ascii(name, codec.Name))
{
methodId = codec.Id;
numStreams = codec.NumStreams;
return i;
}
}
#ifdef EXTERNAL_CODECS
CHECK_GLOBAL_CODECS
if (__externalCodecs)
for (i = 0; i < __externalCodecs->Codecs.Size(); i++)
{
const CCodecInfoEx &codec = __externalCodecs->Codecs[i];
if ((encode ? codec.EncoderIsAssigned : codec.DecoderIsAssigned)
&& StringsAreEqualNoCase_Ascii(name, codec.Name))
{
methodId = codec.Id;
numStreams = codec.NumStreams;
return g_NumCodecs + i;
}
}
#endif
return -1;
}
static int FindMethod_Index(
DECL_EXTERNAL_CODECS_LOC_VARS
CMethodId methodId, bool encode)
{
unsigned i;
for (i = 0; i < g_NumCodecs; i++)
{
const CCodecInfo &codec = *g_Codecs[i];
if (codec.Id == methodId && (encode ? codec.CreateEncoder : codec.CreateDecoder))
return i;
}
#ifdef EXTERNAL_CODECS
CHECK_GLOBAL_CODECS
if (__externalCodecs)
for (i = 0; i < __externalCodecs->Codecs.Size(); i++)
{
const CCodecInfoEx &codec = __externalCodecs->Codecs[i];
if (codec.Id == methodId && (encode ? codec.EncoderIsAssigned : codec.DecoderIsAssigned))
return g_NumCodecs + i;
}
#endif
return -1;
}
bool FindMethod(
DECL_EXTERNAL_CODECS_LOC_VARS
CMethodId methodId,
AString &name)
{
name.Empty();
unsigned 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
CHECK_GLOBAL_CODECS
if (__externalCodecs)
for (i = 0; i < __externalCodecs->Codecs.Size(); i++)
{
const CCodecInfoEx &codec = __externalCodecs->Codecs[i];
if (methodId == codec.Id)
{
name = codec.Name;
return true;
}
}
#endif
return false;
}
bool FindHashMethod(
DECL_EXTERNAL_CODECS_LOC_VARS
const AString &name,
CMethodId &methodId)
{
unsigned i;
for (i = 0; i < g_NumHashers; i++)
{
const CHasherInfo &codec = *g_Hashers[i];
if (StringsAreEqualNoCase_Ascii(name, codec.Name))
{
methodId = codec.Id;
return true;
}
}
#ifdef EXTERNAL_CODECS
CHECK_GLOBAL_CODECS
if (__externalCodecs)
for (i = 0; i < __externalCodecs->Hashers.Size(); i++)
{
const CHasherInfoEx &codec = __externalCodecs->Hashers[i];
if (StringsAreEqualNoCase_Ascii(name, codec.Name))
{
methodId = codec.Id;
return true;
}
}
#endif
return false;
}
void GetHashMethods(
DECL_EXTERNAL_CODECS_LOC_VARS
CRecordVector<CMethodId> &methods)
{
methods.ClearAndSetSize(g_NumHashers);
unsigned i;
for (i = 0; i < g_NumHashers; i++)
methods[i] = (*g_Hashers[i]).Id;
#ifdef EXTERNAL_CODECS
CHECK_GLOBAL_CODECS
if (__externalCodecs)
for (i = 0; i < __externalCodecs->Hashers.Size(); i++)
methods.Add(__externalCodecs->Hashers[i].Id);
#endif
}
HRESULT CreateCoder_Index(
DECL_EXTERNAL_CODECS_LOC_VARS
unsigned i, bool encode,
CMyComPtr<ICompressFilter> &filter,
CCreatedCoder &cod)
{
cod.IsExternal = false;
cod.IsFilter = false;
cod.NumStreams = 1;
if (i < g_NumCodecs)
{
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.NumStreams == 1) cod.Coder = (ICompressCoder *)p;
else { cod.Coder2 = (ICompressCoder2 *)p; cod.NumStreams = codec.NumStreams; }
return S_OK;
}
}
else
if (codec.CreateDecoder)
{
void *p = codec.CreateDecoder();
if (codec.IsFilter) filter = (ICompressFilter *)p;
else if (codec.NumStreams == 1) cod.Coder = (ICompressCoder *)p;
else { cod.Coder2 = (ICompressCoder2 *)p; cod.NumStreams = codec.NumStreams; }
return S_OK;
}
}
}
#ifdef EXTERNAL_CODECS
CHECK_GLOBAL_CODECS
if (__externalCodecs)
{
i -= g_NumCodecs;
cod.IsExternal = true;
if (i < __externalCodecs->Codecs.Size())
{
const CCodecInfoEx &codec = __externalCodecs->Codecs[i];
// if (codec.Id == methodId)
{
if (encode)
{
if (codec.EncoderIsAssigned)
{
if (codec.NumStreams == 1)
{
HRESULT res = __externalCodecs->GetCodecs->CreateEncoder(i, &IID_ICompressCoder, (void **)&cod.Coder);
if (res != S_OK && res != E_NOINTERFACE && res != CLASS_E_CLASSNOTAVAILABLE)
return res;
if (cod.Coder)
return res;
return __externalCodecs->GetCodecs->CreateEncoder(i, &IID_ICompressFilter, (void **)&filter);
}
cod.NumStreams = codec.NumStreams;
return __externalCodecs->GetCodecs->CreateEncoder(i, &IID_ICompressCoder2, (void **)&cod.Coder2);
}
}
else
if (codec.DecoderIsAssigned)
{
if (codec.NumStreams == 1)
{
HRESULT res = __externalCodecs->GetCodecs->CreateDecoder(i, &IID_ICompressCoder, (void **)&cod.Coder);
if (res != S_OK && res != E_NOINTERFACE && res != CLASS_E_CLASSNOTAVAILABLE)
return res;
if (cod.Coder)
return res;
return __externalCodecs->GetCodecs->CreateDecoder(i, &IID_ICompressFilter, (void **)&filter);
}
cod.NumStreams = codec.NumStreams;
return __externalCodecs->GetCodecs->CreateDecoder(i, &IID_ICompressCoder2, (void **)&cod.Coder2);
}
}
}
}
#endif
return S_OK;
}
HRESULT CreateCoder_Index(
DECL_EXTERNAL_CODECS_LOC_VARS
unsigned index, bool encode,
CCreatedCoder &cod)
{
CMyComPtr<ICompressFilter> filter;
HRESULT res = CreateCoder_Index(
EXTERNAL_CODECS_LOC_VARS
index, encode,
filter, cod);
if (filter)
{
cod.IsFilter = true;
CFilterCoder *coderSpec = new CFilterCoder(encode);
cod.Coder = coderSpec;
coderSpec->Filter = filter;
}
return res;
}
HRESULT CreateCoder_Id(
DECL_EXTERNAL_CODECS_LOC_VARS
CMethodId methodId, bool encode,
CMyComPtr<ICompressFilter> &filter,
CCreatedCoder &cod)
{
int index = FindMethod_Index(EXTERNAL_CODECS_LOC_VARS methodId, encode);
if (index < 0)
return S_OK;
return CreateCoder_Index(EXTERNAL_CODECS_LOC_VARS index, encode, filter, cod);
}
HRESULT CreateCoder_Id(
DECL_EXTERNAL_CODECS_LOC_VARS
CMethodId methodId, bool encode,
CCreatedCoder &cod)
{
CMyComPtr<ICompressFilter> filter;
HRESULT res = CreateCoder_Id(
EXTERNAL_CODECS_LOC_VARS
methodId, encode,
filter, cod);
if (filter)
{
cod.IsFilter = true;
CFilterCoder *coderSpec = new CFilterCoder(encode);
cod.Coder = coderSpec;
coderSpec->Filter = filter;
}
return res;
}
HRESULT CreateCoder_Id(
DECL_EXTERNAL_CODECS_LOC_VARS
CMethodId methodId, bool encode,
CMyComPtr<ICompressCoder> &coder)
{
CCreatedCoder cod;
HRESULT res = CreateCoder_Id(
EXTERNAL_CODECS_LOC_VARS
methodId, encode,
cod);
coder = cod.Coder;
return res;
}
HRESULT CreateFilter(
DECL_EXTERNAL_CODECS_LOC_VARS
CMethodId methodId, bool encode,
CMyComPtr<ICompressFilter> &filter)
{
CCreatedCoder cod;
return CreateCoder_Id(
EXTERNAL_CODECS_LOC_VARS
methodId, encode,
filter, cod);
}
HRESULT CreateHasher(
DECL_EXTERNAL_CODECS_LOC_VARS
CMethodId methodId,
AString &name,
CMyComPtr<IHasher> &hasher)
{
name.Empty();
unsigned i;
for (i = 0; i < g_NumHashers; i++)
{
const CHasherInfo &codec = *g_Hashers[i];
if (codec.Id == methodId)
{
hasher = codec.CreateHasher();
name = codec.Name;
break;
}
}
#ifdef EXTERNAL_CODECS
CHECK_GLOBAL_CODECS
if (!hasher && __externalCodecs)
for (i = 0; i < __externalCodecs->Hashers.Size(); i++)
{
const CHasherInfoEx &codec = __externalCodecs->Hashers[i];
if (codec.Id == methodId)
{
name = codec.Name;
return __externalCodecs->GetHashers->CreateHasher((UInt32)i, &hasher);
}
}
#endif
return S_OK;
}
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