private void btnChooseOutput_Click(object sender, EventArgs e)
{
PresetDescriptor preset = comboPresets.SelectedItem as PresetDescriptor;
SaveFileDialog dlg = new SaveFileDialog();
string filter = string.Empty;
if (!string.IsNullOrEmpty(preset.FileExtension))
{
dlg.DefaultExt = preset.FileExtension;
filter = string.Format("(*.{0})|*.{0}|", preset.FileExtension);
}
filter += "All files (*.*)|*.*";
dlg.Filter = filter;
dlg.OverwritePrompt = true;
if (txtOutput.Text.Length > 0)
{
dlg.FileName = System.IO.Path.GetFileName(txtOutput.Text);
dlg.InitialDirectory = System.IO.Path.GetDirectoryName(txtOutput.Text);
}
if (DialogResult.OK != dlg.ShowDialog())
{
return;
}
txtOutput.Text = dlg.FileName;
txtAudioLog.Text = Util.AudioLogForVideoFile(dlg.FileName, preset);
}
public static string AudioLogForVideoFile(string videoFile, PresetDescriptor preset)
{
var audioPin = Util.MediaSocketFromPreset(preset.Name).Pins.FirstOrDefault(pin =>
(pin.StreamInfo.MediaType == PrimoSoftware.AVBlocks.MediaType.Audio));
if (audioPin == null)
{
return(string.Empty);
}
var ext = DefaulAudioFileExtension(audioPin.StreamInfo);
if (ext == null)
{
return(string.Empty);
}
return(System.IO.Path.ChangeExtension(videoFile, ext));
}
public CaptureDSForm()
{
InitializeComponent();
#if WIN64
this.Text += " (64-bit)";
#endif
EnumInputDev(FilterCategory.AudioInputDevice, listAudioDev);
listAudioDev.Items.Insert(0, new DevItem()
{
FriendlyName = "[ No audio input ]",
// DisplayName = null
});
EnumInputDev(FilterCategory.VideoInputDevice, listVideoDev);
statsTimer = new System.Windows.Forms.Timer();
statsTimer.Tick += new EventHandler(UpdateStats);
statsTimer.Interval = 500;
bIgnoreDeviceSelection = false;
bRecording = false;
cmdRecord.Text = sStartRecording;
txtRecording.Visible = false;
ResetStats();
int h = previewBox.Size.Height;
int w = previewBox.Size.Width;
previewBox.Size = new Size(w, w * 3 / 4);
for (int i = 0; i < AvbTranscoder.Presets.Length; ++i)
{
PresetDescriptor preset = AvbTranscoder.Presets[i];
if (!preset.AudioOnly)
{
comboPresets.Items.Add(preset);
}
}
comboPresets.SelectedIndex = 0;
}
private void comboPresets_SelectedIndexChanged(object sender, EventArgs e)
{
PresetDescriptor preset = comboPresets.SelectedItem as PresetDescriptor;
if (string.IsNullOrEmpty(preset.FileExtension) || txtOutput.Text.Length == 0)
{
return;
}
string newExt = "." + preset.FileExtension;
string oldExt = System.IO.Path.GetExtension(txtOutput.Text);
if (oldExt != newExt)
{
string newFile = System.IO.Path.ChangeExtension(txtOutput.Text, newExt);
txtOutput.Text = newFile;
}
txtAudioLog.Text = Util.AudioLogForVideoFile(txtOutput.Text, preset);
}
private bool ConfigureTranscoder()
{
ms.transcoder = new CompositeTranscoder();
ms.transcoder.AllowDemoMode = true;
// set audio input pin if audio is not disabled
if (ms.audioInput != null)
{
if ((ms.audioType.majorType != DirectShowLib.MediaType.Audio) ||
(ms.audioType.formatType != DirectShowLib.FormatType.WaveEx))
{
return(false);
}
WaveFormatEx wfx = new WaveFormatEx();
Marshal.PtrToStructure(ms.audioType.formatPtr, wfx);
if (wfx.wFormatTag != 1) // WAVE_FORMAT_PCM
{
return(false);
}
AudioStreamInfo audioInfo = new AudioStreamInfo();
audioInfo.BitsPerSample = wfx.wBitsPerSample;
audioInfo.Channels = wfx.nChannels;
audioInfo.SampleRate = wfx.nSamplesPerSec;
audioInfo.StreamType = StreamType.LPCM;
MediaSocket inputSocket = new MediaSocket();
MediaPin inputPin = new MediaPin();
inputPin.StreamInfo = audioInfo;
inputSocket.Pins.Add(inputPin);
inputSocket.StreamType = StreamType.LPCM;
m_audioCB.StreamNumber = ms.transcoder.Inputs.Count;
ms.transcoder.Inputs.Add(inputSocket);
}
// set video input pin
{
if ((ms.videoType.majorType != DirectShowLib.MediaType.Video) ||
(ms.videoType.formatType != DirectShowLib.FormatType.VideoInfo))
{
return(false);
}
VideoStreamInfo videoInfo = new VideoStreamInfo();
VideoInfoHeader vih = (VideoInfoHeader)Marshal.PtrToStructure(ms.videoType.formatPtr, typeof(VideoInfoHeader));
if (vih.AvgTimePerFrame > 0)
{
videoInfo.FrameRate = (double)10000000 / vih.AvgTimePerFrame;
}
videoInfo.Bitrate = 0; //vih.BitRate;
videoInfo.FrameHeight = Math.Abs(vih.BmiHeader.Height);
videoInfo.FrameWidth = vih.BmiHeader.Width;
videoInfo.DisplayRatioWidth = videoInfo.FrameWidth;
videoInfo.DisplayRatioHeight = videoInfo.FrameHeight;
videoInfo.ScanType = ScanType.Progressive;
videoInfo.Duration = 0;
if (ms.videoType.subType == MediaSubType.MJPG)
{
videoInfo.StreamType = StreamType.Mjpeg;
videoInfo.ColorFormat = ColorFormat.YUV422;
}
else
{
videoInfo.StreamType = StreamType.UncompressedVideo;
videoInfo.ColorFormat = Util.GetColorFormat(ref ms.videoType.subType);
}
// unsupported capture format
if (videoInfo.ColorFormat == ColorFormat.Unknown)
{
return(false);
}
switch (videoInfo.ColorFormat)
{
case ColorFormat.BGR32:
case ColorFormat.BGRA32:
case ColorFormat.BGR24:
case ColorFormat.BGR444:
case ColorFormat.BGR555:
case ColorFormat.BGR565:
videoInfo.FrameBottomUp = (vih.BmiHeader.Height > 0);
break;
}
MediaSocket inputSocket = new MediaSocket();
MediaPin inputPin = new MediaPin();
inputPin.StreamInfo = videoInfo;
inputSocket.Pins.Add(inputPin);
inputSocket.StreamType = StreamType.UncompressedVideo;
m_videoCB.StreamNumber = ms.transcoder.Inputs.Count;
ms.transcoder.Inputs.Add(inputSocket);
}
PresetDescriptor preset = comboPresets.SelectedItem as PresetDescriptor;
MediaSocket outputSocket;
outputSocket = Util.MediaSocketFromPreset(preset.Name);
outputSocket.File = txtOutput.Text;
SetRealTimeVideoMode(outputSocket);
ms.transcoder.Outputs.Add(outputSocket);
ms.transcoder.AudioLog = txtAudioLog.Text;
if (!ms.transcoder.Open())
{
MessageBox.Show(ms.transcoder.Error.Message + "\n" + ms.transcoder.Error.Hint,
"Transcoder Open Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
return(true);
}