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
|
/****************************************************************************
* *
* PrimeSense Sensor 5.x Alpha *
* Copyright (C) 2011 PrimeSense Ltd. *
* *
* This file is part of PrimeSense Sensor. *
* *
* PrimeSense Sensor is free software: you can redistribute it and/or modify*
* it under the terms of the GNU Lesser General Public License as published *
* by the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* PrimeSense Sensor is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with PrimeSense Sensor. If not, see <http://www.gnu.org/licenses/>.*
* *
****************************************************************************/
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include "XnAudioProcessor.h"
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
XnAudioProcessor::XnAudioProcessor(XnSensorAudioStream* pStream, XnSensorStreamHelper* pHelper, XnUInt32 nInputPacketSize) :
XnWholePacketProcessor(pHelper->GetPrivateData(), pStream->GetType(), nInputPacketSize),
m_pStream(pStream),
m_pHelper(pHelper),
m_AudioInDump(NULL)
{
m_AudioInDump = xnDumpFileOpen(XN_DUMP_AUDIO_IN, "AudioIn.pcm");
}
XnAudioProcessor::~XnAudioProcessor()
{
xnDumpFileClose(m_AudioInDump);
GetStream()->NumberOfChannelsProperty().OnChangeEvent().Unregister(m_hNumChannelsCallback);
}
XnStatus XnAudioProcessor::Init()
{
XnStatus nRetVal = XN_STATUS_OK;
nRetVal = XnWholePacketProcessor::Init();
XN_IS_STATUS_OK(nRetVal);
nRetVal = GetStream()->NumberOfChannelsProperty().OnChangeEvent().Register(DeleteChannelChangedCallback, this, &m_hNumChannelsCallback);
XN_IS_STATUS_OK(nRetVal);
CalcDeleteChannel();
return (XN_STATUS_OK);
}
void XnAudioProcessor::ProcessWholePacket(const XnSensorProtocolResponseHeader* pHeader, const XnUChar* pData)
{
xnOSEnterCriticalSection(&m_pDevicePrivateData->hAudioBufferCriticalSection);
// take write packet
XnUChar* pWritePacket = m_pDevicePrivateData->pAudioBuffer + (m_pDevicePrivateData->nAudioWriteIndex * m_pDevicePrivateData->nAudioPacketSize);
if (m_bDeleteChannel)
{
XnUInt16* pSamples = (XnUInt16*)pData;
XnUInt16* pSamplesEnd = (XnUInt16*)(pData + pHeader->nBufSize);
XnUInt16* pOutput = (XnUInt16*)pWritePacket;
while (pSamples < pSamplesEnd)
{
*pOutput = *pSamples;
pOutput++;
// skip a sample
pSamples += 2;
}
}
else
{
// copy data
xnOSMemCopy(pWritePacket, pData, pHeader->nBufSize);
}
// mark timestamp
m_pDevicePrivateData->pAudioPacketsTimestamps[m_pDevicePrivateData->nAudioWriteIndex] = GetTimeStamp(pHeader->nTimeStamp);
if (m_nLastPacketID % 10 == 0)
{
XnUInt64 nSysTime;
xnOSGetTimeStamp(&nSysTime);
xnDumpFileWriteString(m_pDevicePrivateData->BandwidthDump, "%llu,%s,%d,%d\n",
nSysTime, "Audio", -1, m_nBytesReceived);
m_nBytesReceived = 0;
}
// move write index forward
m_pDevicePrivateData->nAudioWriteIndex = (m_pDevicePrivateData->nAudioWriteIndex + 1) % m_pDevicePrivateData->nAudioBufferNumOfPackets;
// if write index got to read index (end of buffer), move read index forward (and loose a packet)
if (m_pDevicePrivateData->nAudioWriteIndex == m_pDevicePrivateData->nAudioReadIndex)
{
m_pDevicePrivateData->nAudioReadIndex = (m_pDevicePrivateData->nAudioReadIndex + 1) % m_pDevicePrivateData->nAudioBufferNumOfPackets;
}
xnOSLeaveCriticalSection(&m_pDevicePrivateData->hAudioBufferCriticalSection);
xnDumpFileWriteBuffer(m_AudioInDump, pData, pHeader->nBufSize);
if (m_pDevicePrivateData->pAudioCallback != NULL)
{
m_pDevicePrivateData->pAudioCallback(m_pDevicePrivateData->pAudioCallbackCookie);
}
}
void XnAudioProcessor::CalcDeleteChannel()
{
m_bDeleteChannel = (m_pHelper->GetFirmwareVersion() >= XN_SENSOR_FW_VER_5_2 && GetStream()->GetNumberOfChannels() == 1);
}
XnStatus XnAudioProcessor::DeleteChannelChangedCallback(const XnProperty* /*pSender*/, void* pCookie)
{
XnAudioProcessor* pThis = (XnAudioProcessor*)pCookie;
pThis->CalcDeleteChannel();
return XN_STATUS_OK;
}
|
