void stopRecording()
{
if (isRecording)
{
removeFileCaptureFilter();
removeUser();
isRecording = false;
}
}
bool createFileCaptureFilter (const File& file, int quality)
{
removeFileCaptureFilter();
file.deleteFile();
mediaControl->Stop();
firstRecordedTime = Time();
recordNextFrameTime = true;
previewMaxFPS = 60;
HRESULT hr = asfWriter.CoCreateInstance (CLSID_WMAsfWriter);
if (SUCCEEDED (hr))
{
ComSmartPtr <IFileSinkFilter> fileSink;
hr = asfWriter.QueryInterface (fileSink);
if (SUCCEEDED (hr))
{
hr = fileSink->SetFileName (file.getFullPathName().toWideCharPointer(), 0);
if (SUCCEEDED (hr))
{
hr = graphBuilder->AddFilter (asfWriter, _T("AsfWriter"));
if (SUCCEEDED (hr))
{
ComSmartPtr <IConfigAsfWriter> asfConfig;
hr = asfWriter.QueryInterface (asfConfig);
asfConfig->SetIndexMode (true);
ComSmartPtr <IWMProfileManager> profileManager;
hr = WMCreateProfileManager (profileManager.resetAndGetPointerAddress());
// This gibberish is the DirectShow profile for a video-only wmv file.
String prof ("<profile version=\"589824\" storageformat=\"1\" name=\"Quality\" description=\"Quality type for output.\">"
"<streamconfig majortype=\"{73646976-0000-0010-8000-00AA00389B71}\" streamnumber=\"1\" "
"streamname=\"Video Stream\" inputname=\"Video409\" bitrate=\"894960\" "
"bufferwindow=\"0\" reliabletransport=\"1\" decodercomplexity=\"AU\" rfc1766langid=\"en-us\">"
"<videomediaprops maxkeyframespacing=\"50000000\" quality=\"90\"/>"
"<wmmediatype subtype=\"{33564D57-0000-0010-8000-00AA00389B71}\" bfixedsizesamples=\"0\" "
"btemporalcompression=\"1\" lsamplesize=\"0\">"
"<videoinfoheader dwbitrate=\"894960\" dwbiterrorrate=\"0\" avgtimeperframe=\"$AVGTIMEPERFRAME\">"
"<rcsource left=\"0\" top=\"0\" right=\"$WIDTH\" bottom=\"$HEIGHT\"/>"
"<rctarget left=\"0\" top=\"0\" right=\"$WIDTH\" bottom=\"$HEIGHT\"/>"
"<bitmapinfoheader biwidth=\"$WIDTH\" biheight=\"$HEIGHT\" biplanes=\"1\" bibitcount=\"24\" "
"bicompression=\"WMV3\" bisizeimage=\"0\" bixpelspermeter=\"0\" biypelspermeter=\"0\" "
"biclrused=\"0\" biclrimportant=\"0\"/>"
"</videoinfoheader>"
"</wmmediatype>"
"</streamconfig>"
"</profile>");
const int fps[] = { 10, 15, 30 };
int maxFramesPerSecond = fps [jlimit (0, numElementsInArray (fps) - 1, quality & 0xff)];
if ((quality & 0xff000000) != 0) // (internal hacky way to pass explicit frame rates for testing)
maxFramesPerSecond = (quality >> 24) & 0xff;
prof = prof.replace ("$WIDTH", String (width))
.replace ("$HEIGHT", String (height))
.replace ("$AVGTIMEPERFRAME", String (10000000 / maxFramesPerSecond));
ComSmartPtr <IWMProfile> currentProfile;
hr = profileManager->LoadProfileByData (prof.toWideCharPointer(), currentProfile.resetAndGetPointerAddress());
hr = asfConfig->ConfigureFilterUsingProfile (currentProfile);
if (SUCCEEDED (hr))
{
ComSmartPtr <IPin> asfWriterInputPin;
if (getPin (asfWriter, PINDIR_INPUT, asfWriterInputPin, "Video Input 01"))
{
hr = graphBuilder->Connect (smartTeeCaptureOutputPin, asfWriterInputPin);
if (SUCCEEDED (hr) && ok && activeUsers > 0
&& SUCCEEDED (mediaControl->Run()))
{
previewMaxFPS = (quality < 2) ? 15 : 25; // throttle back the preview comps to try to leave the cpu free for encoding
if ((quality & 0x00ff0000) != 0) // (internal hacky way to pass explicit frame rates for testing)
previewMaxFPS = (quality >> 16) & 0xff;
return true;
}
}
}
}
}
}
