private void thread_DoWork(CancellationToken token)
{
while (!token.IsCancellationRequested)
{
if (encode || live)
{
MFFrame frameLive = null;
MFFrame frameFile = null;
M_AV_PROPS props = new M_AV_PROPS();
if (live)
{
M_VID_PROPS vidProps = new M_VID_PROPS();
vidProps.eVideoFormat = eMVideoFormat.eMVF_HD1080_5994i;
m_objLive.FormatVideoSet(eMFormatType.eMFT_Input, ref vidProps);
props.vidProps.eVideoFormat = eMVideoFormat.eMVF_Custom;
m_objLive.SourceFrameConvertedGet(ref props, -1, out frameLive, "");
}
if (encode)
{
props.vidProps.eVideoFormat = eMVideoFormat.eMVF_HD1080_5994i;
m_objReader.SourceFrameConvertedGet(ref props, -1, out frameFile, "");
if (frameLive != null)
{
frameLive.MFOverlay(frameFile, null, 0, 0, 0, "audio_gain=0", "ch1");
}
}
if (frameLive != null)
{
m_objPreview.ReceiverFramePut(frameLive, -1, "");
}
else
{
m_objPreview.ReceiverFramePut(frameFile, -1, "");
}
if (frameLive != null)
{
Marshal.FinalReleaseComObject(frameLive);
}
if (frameFile != null)
{
Marshal.FinalReleaseComObject(frameFile);
}
}
}
}
private bool NextFrame()
{
// Get request pos and set pause and reverse flags
double dblRequest = -1.0;
string strParams = string.Empty;
// Update player state
lock (m_playerState.stateLock)
{
if (m_playerState.state == eState.eST_Pause)
{
strParams = " pause=true";
}
else if (m_playerState.state == eState.eST_PlayRev || m_playerState.state == eState.eST_StepRev)
{
strParams = " reverse=true";
}
// Update player state
if (m_playerState.state == eState.eST_StepFwd || m_playerState.state == eState.eST_StepRev)
{
// Pause on next iteration - because single frame was requested
m_playerState.state = eState.eST_Pause;
}
// Get request time and set next cycle request to next frame
// -1 as first parameter means "give me next frame", -5 means "give me next next 5th frame" etc,
// this works accordingly when the reverse=true parameter is set.
// positive values are uninterpreted as "give me frame at position"
dblRequest = m_playerState.dblFrameRequest;
m_playerState.dblFrameRequest = -1 * (int)(m_playerState.dblRate);
}
// Next frame cycle:
// Get frame from reader and send to preview
// Note: Preview keep frame according to frame time
MFFrame pFrame = null;
lock (m_objLock) // For prevent reader replace in OpenFile() and overlay change
{
// Get next frame or frame by position
// -1 as first parameter means "give me next frame", -5 means "give me next next 5th frame" etc,
// this works accordingly when the reverse=true parameter is set.
// positive values are uninterpreted as "give me frame at position"
try
{
if (m_objMFReader != null)
{
m_objMFReader.SourceFrameConvertedGetByTime(ref m_avProps, dblRequest, -1, out pFrame, strParams + " rate=0.1");
}
int samples;
pFrame.MFAVPropsGet(out currentProps, out samples);
}
catch (System.Exception ex)
{
MessageBox.Show("Error occurs during file decoding:\n\n" + ex.Message, m_playerState.strFileName, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return(false);
}
}
if (pFrame == null)
{
Thread.Sleep(5);
return(true);
}
try
{
// Demonstrate overlay - overlay another frame if any
if (m_frOverlay != null)
{
pFrame.MFOverlay(m_frOverlay, null, 50, 100, 0.5, "", "");
}
// Show CG object
if (checkBoxCG.Checked)
{
ShowPluggin(m_objCharGen, ref pFrame);
if (cgEditor != null)
{
cgEditor.m_objEditor_FrameProcessed(pFrame, null);
}
}
// Show CC
if (checkBoxCC.Checked)
{
if (m_objCCDisplay != null)
{
ShowPluggin(m_objCCDisplay, ref pFrame);
}
}
// Show HTML
if (checkBoxHTML.Checked)
{
lock (m_objHTMLLock)
{
if (m_objOverlayHTML != null)
{
ShowPluggin(m_objOverlayHTML, ref pFrame);
if (overlayHTMLWind != null && !overlayHTMLWind.IsDisposed)
{
overlayHTMLWind.UpdatePreview(pFrame);
}
}
}
}
mAudioMeter1.pFrame = pFrame;
mAudioMeter1.SetValues();
// Get frame timings
pFrame.MFTimeGet(out mTime);
double dblDur = 0;
m_objMFReader.ReaderDurationGet(out dblDur);
if (m_playerState.dblDuration != dblDur)
{
m_playerState.dblDuration = dblDur;
}
// Send frame to Renderer
SendToRenderer(pFrame);
//Send frame to the preview
m_objPreview.ReceiverFramePut(pFrame, checkBoxRenderer.Checked ? 0 : -1, "");
//Send to Sink
SendToSink(pFrame);
//Release frame - DO NOT FORGOT TO DO THIS !!!
releaseComObj(pFrame);
}
catch (System.Exception ex)
{
MessageBox.Show("Error occurs during frame processing:\n\n" + ex.Message, m_playerState.strFileName, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return(false);
}
// Check for the last frame
if ((mTime.eFFlags & eMFrameFlags.eMFF_Last) != 0)
{
lock (m_playerState.stateLock)
{
// Pause playback at the end of the file if loop is disabled
if (!m_playerState.bLoop)
{
pause();
}
if (m_playerState.state == eState.eST_PlayRev)
{
// Rewind to end in case of reverse playback
rewindToEnd();
}
else if (m_playerState.state == eState.eST_PlayFwd)
{
// Rewind to start in case of direct playback
rewindToStart();
}
}
}
return(true);
}