test/dsp_test.cpp

   1 /*******************************************************************************
   2  *    File Name : test/dsp_test.cpp
   3  *
   4  *       Author : Henry He
   5  * Created Time : Fri 23 Oct 2009 10:49:00 AM CST
   6  *  Description :
   7  ******************************************************************************/
   8
   9
  10 /*******************************************************************************
  11  * Desc : Includes Files
  12  ******************************************************************************/
  13 #include  "src/common.h"
  14 #include  <sys/soundcard.h>
  15
  16
  17 /*******************************************************************************
  18  * Desc : Macro Definations
  19  ******************************************************************************/
  20 #define DSP_TEST_TIME_SECS   10
  21
  22 /*******************************************************************************
  23  * Desc : Type Definations
  24  ******************************************************************************/
  25
  26
  27 /*******************************************************************************
  28  * Desc : Global Variables
  29  ******************************************************************************/
  30
  31
  32 /*******************************************************************************
  33  * Desc : File Variables
  34  ******************************************************************************/
  35 #if 0
  36 static UINT32   m_unFrameCnt;
  37 static UINT32   m_unFramesLength;
  38 #endif
  39
  40
  41 // Audio buffer
  42 static UINT8    m_aucAudioBuffer [8000 * DSP_TEST_TIME_SECS];
  43 static volatile UINT8   *m_pucAudioBuffer;
  44 static volatile UINT32   m_unAudioCntLeft;
  45
  46
  47 /******************************************************************************
  48  * Desc : Functions
  49  ******************************************************************************/
  50 void OnAudioRead (void *pvParam, void *pvBuf, UINT32 unLen)
  51 {
  52   HLH_Audio    *pzhaAudioDev;
  53
  54   ASSERT (pvParam != NULL);
  55
  56 #if 0
  57   m_unFrameCnt++;
  58   m_unFramesLength += unLen;
  59 #endif
  60
  61   pzhaAudioDev = (HLH_Audio *) pvParam;
  62
  63 #if 0
  64   pzhaAudioDev->Write (pvBuf, unLen);
  65 #else
  66   if ( m_unAudioCntLeft > 0 ) {
  67     UINT32 unCopyLen;
  68     unCopyLen = m_unAudioCntLeft >= unLen ? unLen : m_unAudioCntLeft;
  69     memcpy ((void*)m_pucAudioBuffer, pvBuf, unCopyLen);
  70     m_pucAudioBuffer += unCopyLen;
  71     m_unAudioCntLeft -= unCopyLen;
  72   }
  73 #endif
  74 }
  75
  76
  77
  78
  79
  80 /******************************************************************************
  81  * Func : main
  82  * Desc :
  83  * Args :
  84  * Outs :
  85  ******************************************************************************/
  86 int main ()
  87 {
  88   int       nRetVal;
  89   HLH_Audio zhaAudioDev;
  90
  91 #if 0
  92   HLH_Time  m_zhtStartTime;
  93   HLH_Time  m_zhtEndTime;
  94
  95   UINT32    m_unSeconds;
  96
  97   m_unFrameCnt = 0;
  98   m_unFramesLength = 0;
  99   m_zhtStartTime = HLH_Time::GetCurrentTime ();
 100 #endif
 101
 102 #if 1
 103   int vol;
 104   int mixer_fd;
 105
 106   mixer_fd = open ("/dev/mixer", O_RDWR);
 107   if (mixer_fd < 0) {
 108     Printf ("can't open mixer\n");
 109     goto failed;
 110   }
 111
 112   nRetVal = ioctl (mixer_fd, SOUND_MIXER_READ_MIC, &vol);
 113   if (nRetVal == -1) {
 114     Printf ("can't get mic volumn");
 115     goto failed;
 116   }
 117   Printf ("volume = %d\n", vol);
 118
 119   vol = 80;
 120   nRetVal = ioctl (mixer_fd, SOUND_MIXER_WRITE_MIC, &vol);
 121   if (nRetVal == -1) {
 122     Printf ("can't set mic volumn\n");
 123     goto failed;
 124   }
 125   Printf ("set volumn to %d\n", vol);
 126 #endif
 127
 128   m_pucAudioBuffer = m_aucAudioBuffer;
 129   m_unAudioCntLeft = sizeof(m_aucAudioBuffer);
 130
 131   nRetVal = zhaAudioDev.Create (OnAudioRead, &zhaAudioDev, AFMT_U8, 8000, 1, 8, 16) ;
 132
 133   if (nRetVal < 0) {
 134     goto failed;
 135   }
 136
 137   Printf ("Start to record (%ds)\n", DSP_TEST_TIME_SECS);
 138   while ( m_unAudioCntLeft != 0 ) {
 139     HLH_Time::Wait (HLH_Time(1, 0));
 140   }
 141
 142   Printf ("Playback\n");
 143   zhaAudioDev.Write ( m_aucAudioBuffer, sizeof(m_aucAudioBuffer) );
 144
 145
 146 #if 0
 147   m_zhtEndTime = HLH_Time::GetCurrentTime ();
 148
 149   m_unSeconds = m_zhtEndTime.GetSeconds () - m_zhtStartTime.GetSeconds ();
 150   Printf ("Time = %u, Frames = %u, Frames Length = %u\n",
 151       m_unSeconds, m_unFrameCnt, m_unFramesLength);
 152   Printf ("FPS = %u fps, BPS = %u Bps", m_unFrameCnt/m_unSeconds, m_unFramesLength/m_unSeconds);
 153 #endif
 154
 155   zhaAudioDev.Destroy ();
 156
 157   return 0;
 158
 159 failed:
 160   return -1;
 161
 162 } /* ----------  end of function main  ---------- */
 163
 164