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Beginner
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I have some problems in writing avi file, can anybody help me?

the encode func is ippiBGRToYCbCr420_8u_AC4P3R
here a part of my code, the question are below
// how to fill aviStreamInfo?
// how to fill aviCompressOptions?
//how to fill bitmapInfoHeader?
//////////////////////////////////////

#define FRAME_LOCKBUFFER( PTR_FRAME, PTR_FUNC, PTR_DATA )
do
{
umcSts = PTR_FRAME->PTR_FUNC( &PTR_DATA );
if ( ( UMC::UMC_NOT_ENOUGH_DATA == umcSts )
|| ( UMC::UMC_NOT_ENOUGH_BUFFER == umcSts ))
{
vm_time_sleep(5);
}

} while ( ( UMC::UMC_NOT_ENOUGH_DATA == umcSts )
|| ( UMC::UMC_NOT_ENOUGH_BUFFER == umcSts ));

if ( UMC::UMC_OK != umcSts )
{
break;
}


#define FRAME_UNLOCKBUFFER( PTR_FRAME, PTR_FUNC, PTR_DATA )
umcSts = PTR_FRAME->PTR_FUNC( &PTR_DATA );
if ( UMC::UMC_OK != umcSts )
{
break;
}

struct IPPSpec_Infos_t
{
// path info
TCHAR FileAvis[MAX_PATH];
TCHAR Paths[MAX_PATH];


// encoder info
UMC::VideoEncoder*pEncoder;
UMC::VideoEncoderParams*pParams;

UMC::SampleBufferVideoFrames[1];
UMC::SampleBufferCompressedFrames[1];


// encoder spec
UINTSpecFmt;
UINTSpecFilter;


// capture buffer spec: backbuffer
Ipp32sSnapPitch;
Ipp32sSnapInPitch;

boolSnapResize;
IppiSizeSnapDest;
IppiFactorSnapFactor;
IppiSizeSnapViewport;

//Ipp32sSnapByte;
//Ipp32sSnapPitch;
//IppiSizeSnapCanvas;

// thread info
vm_threadhTh rSave[1];
vm_threadhThrEncoder[1];

vm_eventhThrEtExit[1];
vm_eventhThrEtSave[1];
vm_eventhThrEtEncoder[1];


// frame info
floatnFrameRate;
floatnFrameWeight;

UINTnFrameCapture;
UINTnFrameRecord;

vm_ticknFrameTimes;
vm_ticknFrameFrequency;

UINTnFrameSave;
UINTnFrameEncoder;
UINTnFrameSampling;

};

unsigned int IPP_ThreadSaveing( void* Parameter )
{
// get spec info pointer
IPPSpec_Infos_t* pSpecInfo = ( IPPSpec_Infos_t* )( Parameter );
assert( pSpecInfo != NULL );


// init local info
UMC::VideoEncoder* pEncoder = pSpecInfo->pEncoder;
UMC::VideoEncoderParams* pParams = pSpecInfo->pParams;
UMC::VideoDatacompressed_data;
UMC::StatusumcSts = UMC::UMC_OK;
HRESULT hr = E_FAIL;

AVIFileInit();
AVISTREAMINFO aviStreamInfo;
PAVIFILE pAviFile = NULL;
PAVISTREAM pAviStream = NULL;
PAVISTREAM pAviCompressedStream = NULL;
AVICOMPRESSOPTIONS aviCompressOptions;
BITMAPINFOHEADER bitmapInfoHeader;

pSpecInfo->nFrameSave = 0;

hr = AVIFileOpen(&pAviFile, pSpecInfo->FileAvis, OF_WRITE | OF_CREATE,NULL);
if ( !pAviFile )
{
AVIFileExit();
return 0x1001;
}

// how to fill aviStreamInfo?

hr = AVIFileCreateStream(pAviFile, &pAviStream, &aviStreamInfo);

if (!pAviStream)
{
AVIFileClose(pAviFile);
AVIFileExit();
return 0x1001;
}

// how to fill aviCompressOptions?
hr = AVIMakeCompressedStream(&pAviCompressedStream, pAviStream, &aviCompressOptions, NULL);
if (!pAviCompressedStream)
{
AVIStreamClose(pAviStream);
AVIFileClose(pAviFile);
AVIFileExit();
return 0x1001;
}

//how to fill bitmapInfoHeader?
hr = AVIStreamSetFormat(pAviCompressedStream, pSpecInfo->nFrameSave, &bitmapInfoHeader,sizeof(bitmapInfoHeader));

// for
HANDLE hEventWait[] = { pSpecInfo->hThrEtSave[0].handle, pSpecInfo->hThrEtExit[0].handle };
DWORD hEventCount = 2;

while ( true )
{
DWORD hWait = ::WaitForMultipleObjects( hEventCount, &hEventWait[0], FALSE, INFINITE );
if ( hWait != WAIT_OBJECT_0 )
{
break ;
}

vm_event_reset( pSpecInfo->hThrEtSave );
while ( UMC::UMC_OK == umcSts )
{
// get source buffer
FRAME_LOCKBUFFER( pSpecInfo->CompressedFrames, LockOutputBuffer, compressed_data );


hr = AVIStreamWrite(pAviCompressedStream, // stream pointer
pSpecInfo->nFrameSave, // time of this frame
1, // number to write
compressed_data.GetDataPointer(),
(long)compressed_data.GetDataSize(), // size of this frame
AVIIF_KEYFRAME, NULL, NULL);

compressed_data.SetDataSize(0);
FRAME_UNLOCKBUFFER( pSpecInfo->CompressedFrames, UnLockOutputBuffer, compressed_data );
pSpecInfo->nFrameSave ++;
}

}

AVIStreamClose(pAviCompressedStream);
AVIStreamClose(pAviStream);
AVIFileClose(pAviFile);
AVIFileExit();
return UMC::UMC_OK;
}

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3 Replies
Highlighted
Beginner
8 Views

thank you very much!

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Highlighted
Beginner
8 Views

the problem has beenresolved, thank you for your attention!
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Highlighted
8 Views

Hello,

I'm glad you solve your issue :)

Regards,
Vladimir

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