Prepare a FTFLVSTREAMINFO structure (see Structures):

void CALLBACK WriteCallback(LPVOID lpParam, LPCVOID lpData, DWORD nLen) { WriteFile((HANDLE)lpParam, lpData, nLen, NULL); } ... FTVIDEOINFO video_info; video_info.dwCodec = FT_VIDEOCODEC_SCREENVIDEO; video_info.dwWidth = 0x100; video_info.dwHeight = 0x100; FTAUDIOINFO audio_info; audio_info.dwFormat = FT_SOUNDFORMAT_UNCOMPRESSED; audio_info.dwRate = FT_SOUNDRATE_44KHZ; audio_info.dwSize = FT_SOUNDSIZE_16BIT; audio_info.dwType = FT_SOUNDTYPE_STEREO; FTFLVSTREAMINFO info; // if you don't want to place any video into a flv, you can pass NULL info.lpVideoInfo = &video_info; // if you don't want to place any audio into a flv, you can pass NULL info.lpAudioInfo = &audio_info; info.lpWriteDataCallback = &WriteCallback; HANDLE hFLVFile = CreateFile( ... ); info.lpParam = hFLVFile; HFTFLVSTREAM hFlvStream = ftFlvStreamCreate(&info);

Prepare Screen Video Encoder:

HFTSCREENVIDEOENCODER hScreenVideoEncoder = ftScreenVideoEncoderCreate(0x100, 0x100, 16);

Write raw audio data:

ftFlvStreamPutAudioData(hFlvStream, lpAudioData, nLen, nTimeStamp);

Compress (encode) and write video data:

// OnVideoData(const char* data, unsigned int size, unsigned int timestamp) LPCVOID lpData = 0; DWORD cbBytes = 0; ftScreenVideoEncodeFrame(hScreenVideoEncoder, data, size); ftScreenVideoGetEncodedFrame(hScreenVideoEncoder, &lpData, &cbBytes); ftFlvStreamPutVideoData(hFlvStream, lpData, cbBytes, timestamp);

Destroy the video encoder and flv stream:

ftScreenVideoEncoderDestroy(hScreenVideoEncoder); ftFlvStreamDestroy(hFlvStream);