blob: 1627b728bfaafe8d0273e55d9c96e90f6416be3d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
// AudioMediaType.cpp -- Copyright (c) 2003 Microsoft Corporation
//
//
// Description:
//
// Implementation of the TestMediaType
//
#include "TestMediaType.h"
#include <memory>
#include <wil\resultmacros.h>
//-----------------------------------------------------------------------------
// Description:
//
// Creates an CTestAudioMediaType object with the given format.
//
// Parameters:
//
// pFormat - [in] Format for the new AudioMediaType.
// ppIAudioMediaType - [out] upon success returns the pointer to the
// new interface.
//
// Return values:
//
// S_OK Success
// E_OUTOFMEMORY On memory failure.
// E_INVALIDARG Null parameter
//
// Remarks:
//
HRESULT CTestAudioMediaType::Create
(
const UNCOMPRESSEDAUDIOFORMAT* pFormat,
IAudioMediaType** ppIAudioMediaType
)
{
if (!pFormat || !ppIAudioMediaType)
{
return E_INVALIDARG;
}
HRESULT hResult = S_OK;
*ppIAudioMediaType = NULL;
std::unique_ptr<CTestAudioMediaType> pObj(new(std::nothrow) CTestAudioMediaType());
pObj->m_Format = *pFormat;
// TODO: iter8 fix this to use WAVEFORMATEXTENSIBLE (commented lines)
// after KSCommon lib is fixed
if (KSDATAFORMAT_SUBTYPE_PCM == pFormat->guidFormatType)
{
pObj->m_Wfx.Format.wFormatTag = WAVE_FORMAT_PCM;
}
else
{
pObj->m_Wfx.Format.wFormatTag = WAVE_FORMAT_IEEE_FLOAT;
}
pObj->m_Wfx.Format.nChannels = (WORD)pObj->m_Format.dwSamplesPerFrame;
pObj->m_Wfx.Format.nSamplesPerSec = (DWORD)pObj->m_Format.fFramesPerSecond;
pObj->m_Wfx.Format.nAvgBytesPerSec = (DWORD)(pObj->m_Format.dwBytesPerSampleContainer *
pObj->m_Format.fFramesPerSecond * pObj->m_Format.dwSamplesPerFrame);
pObj->m_Wfx.Format.nBlockAlign = (WORD)(pObj->m_Format.dwBytesPerSampleContainer * pObj->m_Format.dwSamplesPerFrame);
pObj->m_Wfx.Format.wBitsPerSample = (WORD)pObj->m_Format.dwValidBitsPerSample;
pObj->m_Wfx.Format.cbSize = 0;
hResult = pObj->QueryInterface(
__uuidof(IAudioMediaType),
(LPVOID *) ppIAudioMediaType );
return( hResult );
} // Create
//-----------------------------------------------------------------------------
// Description:
//
// Used to addref an interface
//
// Results:
//
// New reference count
//
ULONG STDMETHODCALLTYPE CTestAudioMediaType::AddRef()
{
return (ULONG) InterlockedIncrement( (LONG *) &m_cRef );
} // AddRef
//-----------------------------------------------------------------------------
// Description:
//
// Used to release an interface
//
// Results:
//
// New reference count
//
ULONG STDMETHODCALLTYPE CTestAudioMediaType::Release()
{
ULONG ulNewRefCount = (ULONG) InterlockedDecrement( (LONG *) &m_cRef );
//
// If our new refcount is zero, then we need to delete ourselves
//
if( 0 == ulNewRefCount )
{
delete this;
}
return( ulNewRefCount );
} // Release
//-----------------------------------------------------------------------------
// Description:
//
// Used to query an interface
//
// Parameters:
//
// riid - [in] id to look for
// ppvObject - [out] pointer to object
//
// Return Values:
//
// S_OK On success.
// E_POINTER Invalid destination pointer
// E_NOINTERFACE No interface of that type
// error Other
//
STDMETHODIMP CTestAudioMediaType::QueryInterface(
REFIID riid, LPVOID *ppvObject )
{
if (!ppvObject)
{
return E_POINTER;
}
HRESULT hResult;
hResult = S_OK;
*ppvObject = NULL;
if( ( riid == __uuidof(IAudioMediaType) ) ||
( riid == __uuidof(IUnknown) ) )
{
*ppvObject = ( IAudioMediaType *)this;
}
else
{
hResult = E_NOINTERFACE;
}
if ( SUCCEEDED( hResult ) )
{
((LPUNKNOWN) *ppvObject)->AddRef( );
}
return( hResult );
} // QueryInterface
//-----------------------------------------------------------------------------
// Description:
//
// Not implemented
//
// Parameters:
//
// pAudioMediaType - [in] media type
// pdwFlags - [out] flags
//
// Return Values:
//
// E_NOTIMPL Not implemented.
//
HRESULT STDMETHODCALLTYPE CTestAudioMediaType::IsEqual(
IAudioMediaType * /* pAudioMediaType */,
DWORD * /* pdwFlags */
)
{
return E_NOTIMPL;
} // IsEqual
//-----------------------------------------------------------------------------
// Description:
//
// Returns pointer to internal member variable m_Wfx.
//
// Results:
//
// Returns pointer to WaveFormatEx representing the format.
//
const WAVEFORMATEX *STDMETHODCALLTYPE CTestAudioMediaType::GetAudioFormat( void)
{
return reinterpret_cast<WAVEFORMATEX*>(&m_Wfx);
} // GetAudioFormat
//-----------------------------------------------------------------------------
// Description:
//
// Copies the uncompressed data to the parameter.
//
// Parameters:
//
// pUncompressedAudioFormat - [in] format pointer
//
// Return Values:
//
// S_OK On success
// E_POINTER Invalid pointer
//
HRESULT STDMETHODCALLTYPE CTestAudioMediaType::GetUncompressedAudioFormat(
UNCOMPRESSEDAUDIOFORMAT *pUncompressedAudioFormat
)
{
RETURN_HR_IF(E_FAIL, (KSDATAFORMAT_SUBTYPE_PCM != m_Format.guidFormatType) &&
(KSDATAFORMAT_SUBTYPE_IEEE_FLOAT != m_Format.guidFormatType));
if (!pUncompressedAudioFormat)
{
return E_POINTER;
}
CopyMemory(pUncompressedAudioFormat, &m_Format, sizeof(UNCOMPRESSEDAUDIOFORMAT));
return S_OK;
} // GetUncompressedAudioFormat
|
