public int StartRecord(IntPtr CardHandle, string SaveName, string CodecName, DxMediaApi.TVidCodecX264Para dwH264CodecPara, Boolean AudioRec)
{
DxMediaApi.TDEVICE_TAG[] VidCodecInfo = new DxMediaApi.TDEVICE_TAG[125];
DxMediaApi.TDEVICE_TAG[] AuCodecInfo = new DxMediaApi.TDEVICE_TAG[125];
int CodecNum = 32;
int CurCodec = 0;
int AuCodecNum = 32;
int AuCurCodec = 0;
int Size = Marshal.SizeOf(typeof(DxMediaApi.TDEVICE_TAG)) * 32;
IntPtr VideoCodecBuf = Marshal.AllocHGlobal(Size);
IntPtr AudioCodecBuf = Marshal.AllocHGlobal(Size);
//enum the video Codec
DxMediaApi.DXEnumVideoCodecs(VideoCodecBuf, ref CodecNum);
//enum the audio Codec
DxMediaApi.DXEnumVideoCodecs(AudioCodecBuf, ref AuCodecNum);
//set the video codec
for (int i = 0; i < CodecNum; i++)
{
IntPtr VidCodecBuf = new IntPtr(VideoCodecBuf.ToInt64() + Marshal.SizeOf(typeof(DxMediaApi.TDEVICE_TAG)) * i);
VidCodecInfo[i] = (DxMediaApi.TDEVICE_TAG)Marshal.PtrToStructure(VidCodecBuf, typeof(DxMediaApi.TDEVICE_TAG));
//set video codec
if (VidCodecInfo[i].Name.ToLower() == CodecName.ToLower())
{
CurCodec = i;
break;
}
}
//set the audio codec
for (int i = 0; i < AuCodecNum; i++)
{
IntPtr AudCodecBuf = new IntPtr(AudioCodecBuf.ToInt64() + Marshal.SizeOf(typeof(DxMediaApi.TDEVICE_TAG)) * i);
AuCodecInfo[i] = (DxMediaApi.TDEVICE_TAG)Marshal.PtrToStructure(AudCodecBuf, typeof(DxMediaApi.TDEVICE_TAG));
//set video codec
if (AuCodecInfo[i].Name.ToLower() == CodecName.ToLower())
{
AuCurCodec = i;
break;
}
}
//set the video codec
DxMediaApi.DXSetVideoCodec(CardHandle, ref VidCodecInfo[CurCodec]);
if (AudioRec == true)
{
DxMediaApi.DXSetAudioCodec(CardHandle, ref AuCodecInfo[AuCurCodec]);
}
//////////////////set the x264 video codec parameter
string X264Name = "x264 Codec";
string XvidName = "xvid Codec";
if (VidCodecInfo[CurCodec].Name.ToLower() == X264Name.ToLower() || VidCodecInfo[CurCodec].Name.ToLower() == XvidName.ToLower())
{
DxMediaApi.DXSetVideoCodecPara(CardHandle, 1, ref dwH264CodecPara);
}
Marshal.FreeHGlobal(VideoCodecBuf);
Marshal.FreeHGlobal(AudioCodecBuf);
// Marshal.FreeHGlobal(AudCodecBuf);
// Marshal.FreeHGlobal(VidCodecBuf);
int ok = 1;
Point Notify;
int nTimeValue = 0;
int nSizeValue = 0;
Notify = new Point();
ok = DxMediaApi.DXStartCapture(CardHandle, SaveName, AudioRec, ref nTimeValue, ref nSizeValue, Notify);
return(ok);
}
private void CodecSetFrm_Load(object sender, EventArgs e)
{
if (DxMediaFunction.DeviceInfo[Form1.nCard].dwVideoCodecStr == "DivX? 5.1.1 Codec")
{
rdDivx.Checked = true;
}
if (DxMediaFunction.DeviceInfo[Form1.nCard].dwVideoCodecStr == "XviD MPEG-4 Codec")
{
rdXvid.Checked = true;
}
if (DxMediaFunction.DeviceInfo[Form1.nCard].dwVideoCodecStr == "x264 Codec")
{
rdX264.Checked = true;
}
VideoCodecNum = 32;
AudioCodecNum = 32;
VideoCurCodec = 0;
AudioCurCodec = 0;
int i;
for (i = 0; i < 125; i++)
{
VideoCodecInfo[i].idx = 0;
VideoCodecInfo[i].Name = "";
AudioCodecInfo[i].idx = 0;
AudioCodecInfo[i].Name = "";
}
int Size = Marshal.SizeOf(typeof(DxMediaApi.TDEVICE_TAG)) * 32;
IntPtr VideoCodecBuf = Marshal.AllocHGlobal(Size);
IntPtr AudioCodecBuf = Marshal.AllocHGlobal(Size);
//enum the video and the audio codec
DxMediaApi.DXEnumVideoCodecs(VideoCodecBuf, ref VideoCodecNum);
DxMediaApi.DXEnumAudioCodecs(AudioCodecBuf, ref AudioCodecNum);
for (int j = 0; j < 32; j++)
{
IntPtr VidCodecBuf = new IntPtr(VideoCodecBuf.ToInt64() + Marshal.SizeOf(typeof(DxMediaApi.TDEVICE_TAG)) * j);
VideoCodecInfo[j] = (DxMediaApi.TDEVICE_TAG)Marshal.PtrToStructure(VidCodecBuf, typeof(DxMediaApi.TDEVICE_TAG));
IntPtr AudCodecBuf = new IntPtr(AudioCodecBuf.ToInt64() + Marshal.SizeOf(typeof(DxMediaApi.TDEVICE_TAG)) * j);
AudioCodecInfo[j] = (DxMediaApi.TDEVICE_TAG)Marshal.PtrToStructure(AudCodecBuf, typeof(DxMediaApi.TDEVICE_TAG));
}
Marshal.FreeHGlobal(VideoCodecBuf);
Marshal.FreeHGlobal(AudioCodecBuf);
for (i = 0; i < VideoCodecNum; i++)
{
VideoCodecStr[i] = VideoCodecInfo[i].Name;
comboBoxVidCodec.Items.Add(VideoCodecStr[i]);
if ((VideoCodecStr[i] == "XviD MPEG-4 Codec") || (VideoCodecStr[i] == "Xvid MPEG-4 Codec"))
{
VideoCurCodec = i;
}
comboBoxVidCodec.SelectedIndex = VideoCurCodec;
}
for (i = 0; i < AudioCodecNum; i++)
{
AudioCodecStr[i] = AudioCodecInfo[i].Name;
comboBoxAudCodec.Items.Add(AudioCodecStr[i]);
if (AudioCodecStr[i] == "Microsoft ADPCM")
{
AudioCurCodec = i;
}
comboBoxAudCodec.SelectedIndex = AudioCurCodec;
}
}