win CE中的wave函数是否支持u-law格式?
WAVEFORMATEX waveform;
waveform.wFormatTag= WAVE_FORMAT_MULAW;
waveform.nChannels=1;
waveform.nSamplesPerSec=8000;
waveform.nAvgBytesPerSec=8000;
waveform.nBlockAlign=2;
waveform.wBitsPerSample=16;
waveform.cbSize=0;
waveInOpen(&hWaveIn,WAVE_MAPPER,&waveform,(DWORD)hWnd,0,CALLBACK_WINDOW);
出现错误,说不支持这种录音格式;而且WAVE_FORMAT_MULAW一定要引入Mmreg.h,在window.h没有定义。
wave函数如何能用u-law的格式录音呢?