public LiveForm(IMDevice pDevice)
{
try
{
InitializeComponent();
m_objLive = (IMDevice)pDevice;
//Fill Video Device List
FillCombo("video", comboBoxVideo);
FillCombo("ext_audio", comboBoxExtAudio);
//Initialize preview
((IMPreview)m_objLive).PreviewEnable("", 0, 0);
((IMPreview)m_objLive).PreviewWindowSet("", panelPreview.Handle.ToInt32());
((IMPreview)m_objLive).PreviewEnable("", checkBoxAudio.Checked ? 1 : 0, checkBoxVideo.Checked ? 1 : 0);
//Fill output formats
FillOutputVideoFormats();
}
catch (Exception ex)
{
MessageBox.Show("Live source object isn't valid: " + ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
this.Close();
}
}
/// <summary>
/// Fill combo boxes (Audio / Video format)
/// </summary>
/// <param name="pDevice"></param>
/// <param name="strType"></param>
/// <param name="cbxTarget"></param>
private void FillComboFomat(IMDevice pDevice, string strType, ComboBox cbxTarget)
{
if (strType == "video")
{
int nCount = 0;
int nIndex;
string strFormat;
M_VID_PROPS vidProps;
cbxTarget.Items.Clear();
//Get video format count
((IMFormat)m_objLive).FormatVideoGetCount(eMFormatType.eMFT_Input, out nCount);
cbxTarget.Enabled = nCount > 0;
if (nCount > 0)
{
for (int i = 0; i < nCount; i++)
{
//Get format by index
((IMFormat)m_objLive).FormatVideoGetByIndex(eMFormatType.eMFT_Input, i, out vidProps, out strFormat);
// cbxTarget.Items.Add(vidProps.eVideoFormat);
cbxTarget.Items.Add(strFormat);
}
//Check if there is selected format
((IMFormat)m_objLive).FormatVideoGet(eMFormatType.eMFT_Input, out vidProps, out nIndex, out strFormat);
if (nIndex > 0)
{
cbxTarget.SelectedIndex = nIndex;
}
else
{
cbxTarget.SelectedIndex = 0;
}
}
}
else if (strType == "ext_audio")
{
int nCount = 0;
int nIndex;
string strFormat;
M_AUD_PROPS audProps;
cbxTarget.Items.Clear();
//Get video format count
((IMFormat)m_objLive).FormatAudioGetCount(eMFormatType.eMFT_Input, out nCount);
cbxTarget.Enabled = nCount > 0;
if (nCount > 0)
{
for (int i = 0; i < nCount; i++)
{
//Get audio format
((IMFormat)m_objLive).FormatAudioGetByIndex(eMFormatType.eMFT_Input, i, out audProps, out strFormat);
cbxTarget.Items.Add(strFormat);
}
//Check if there is selected format
((IMFormat)m_objLive).FormatAudioGet(eMFormatType.eMFT_Input, out audProps, out nIndex, out strFormat);
if (nIndex > 0)
{
cbxTarget.SelectedIndex = nIndex;
}
else
{
cbxTarget.SelectedIndex = 0;
}
}
}
cbxTarget.Tag = strType;
}
private void OnMDeviceChanged(IMDevice oldValue, IMDevice newValue)
{
this.InitDownStream();
UpdateItems();
}