取不到本地的摄像头名称

lelong

BRAC_GetCurVideoCapture 返回的数值也是0，是成功的，但是本地的摄像头的名称取不到。

admin

您好，请参考：http://bbs.anychat.cn/forum.php?mod=viewthread&tid=155

azuredragon

1. procedure TForm1.Button1Click(Sender: TObject);
   
2. var
   
3.   DeviceName:Array[0..10] of PAnsiChar;
   
4.   DeviceNum:LongWord;
   
5.   i:Integer;
   
6.   szVideoDeviceName:Array[0..1023] of AnsiChar;
   
7.   n:Integer;
   
8.   dwLen:DWORD;
   
9. begin
   
10.   ZeroMemory(@DeviceName,sizeof(DeviceName));
    
11.   DeviceNum:=10;
    
12.   if BRAC_EnumVideoCapture(@DeviceName,DeviceNum)=GV_ERR_SUCCESS then
    
13.   begin
    
14.     Self.ComboBox1.Items.Clear;
    
15.     for i := 0 to DeviceNum-1 do
    
16.     begin
    
17.       if Assigned(DeviceName[i]) then
    
18.                   begin
    
19.                           Self.ComboBox1.Items.Add(StrPas(DeviceName[i]));
    
20.         GlobalFree(HGLOBAL(DeviceName[i]));
    
21.                           DeviceName[i] := nil;
    
22.                   end;
    
23.     end;
    
24. 
    
25.     dwLen:=Sizeof(szVideoDeviceName);
    
26.     ZeroMemory(@szVideoDeviceName,dwLen);
    
27.     if BRAC_GetCurVideoCapture(szVideoDeviceName,dwLen)=GV_ERR_SUCCESS then
    
28.     begin
    
29.       n:=Self.ComboBox1.Items.IndexOf(StrPas(szVideoDeviceName));
    
30.     end;
    
31.   end;
    
32. end;

复制代码

所用的开发工具 Delphi XE2，枚举视频设备能得到正确的返回，取当前的视频设备返回的名称是空

azuredragon

附日志内容

[2014-10-22 21:19:57(873)]        ---------------------------AnyChat Platform Core SDK Client Log---------------------------
[2014-10-22 21:19:57(877)]        Load BRAnyChatCore.dll success!(V5.1 Build Time:Sep 14 2014 19:25:01)
[2014-10-22 21:19:57(893)]        Load BRMiscUtil.dll success!(V5.1 Build Time:Sep 14 2014 19:23:17)
[2014-10-22 21:19:58(233)]        Load BRMediaUtil.dll success!(V5.1 Build Time:Sep 14 2014 19:23:24)
[2014-10-22 21:19:58(241)]        Load BRMediaShow.dll success!(V5.1 Build Time:Sep 14 2014 19:23:22)
[2014-10-22 21:19:58(300)]        Load BRMediaCore.dll success!(V5.1 Build Time:Sep 14 2014 19:23:40)
[2014-10-22 21:19:58(483)]        Invoke        BRAC_Connect(video2.913399.com,14001)=0
[2014-10-22 21:19:58(500)]        Invoke        LoginServer(username=10000)
[2014-10-22 21:19:58(505)]        Invoke        EnterRoom(roomid=1)
[2014-10-22 21:19:58(571)]        CheckClientSocketLink         Connect(ip=121.199.43.135,port=14001)
[2014-10-22 21:19:58(806)]        Server version: V4.8(Build Time:2013-12-02 20:18:03, Server OS:Windows)
[2014-10-22 21:19:58(813)]        Message        OnConnect(bSuccess:1, errorcode=0)
[2014-10-22 21:19:59(101)]        Message        OnLoginSystem(userid=10000,errorcode=0,username=10000), msg deliver worked(1)
[2014-10-22 21:19:59(167)]        Connection to streaming media server successfully!(udp delay:31ms)
[2014-10-22 21:19:59(190)]        Message        OnEnterRoom(roomid=1,errorcode=0,siteindex=0)
[2014-10-22 21:19:59(194)]        Message        OnReceiveOnlineUser(count=1,roomid=1)
[2014-10-22 21:19:59(593)]        WaveIn Audio Capture Driver(麦克风 (Realtek High Definition)
[2014-10-22 21:19:59(600)]        Audio Init, error:0, device:0, 1, 16000, 16, capmode:0
[2014-10-22 21:19:59(608)]        Audio codec init, handle:1, 11, 1, 16000, 16, 15850
[2014-10-22 21:19:59(659)]        Audio Playback Device Init(0, 1, 16000, 16), WaveOut Playback Driver
[2014-10-22 21:20:02(132)]        Invoke        BRAC_SetVideoPos(dwUserId:-1, hWnd:0x1d14b6, l:0, t:0, r:240, b:180)
[2014-10-22 21:20:02(139)]        Invoke        UserCameraControl(userid=-1,bOpen=-1)
[2014-10-22 21:20:03(383)]        MinCroppingSize(640, 480)        MaxCroppingSize(640, 480)        Format(YUY2, 0x32595559)
[2014-10-22 21:20:03(390)]        MinCroppingSize(640, 480)        MaxCroppingSize(640, 480)        Format(YUY2, 0x8d2681)
[2014-10-22 21:20:03(398)]        MinCroppingSize(320, 240)        MaxCroppingSize(320, 240)        Format(YUY2, 0x32595559)
[2014-10-22 21:20:03(404)]        MinCroppingSize(320, 240)        MaxCroppingSize(320, 240)        Format(YUY2, 0x8d2681)
[2014-10-22 21:20:03(410)]        MinCroppingSize(176, 144)        MaxCroppingSize(176, 144)        Format(YUY2, 0x32595559)
[2014-10-22 21:20:03(419)]        MinCroppingSize(176, 144)        MaxCroppingSize(176, 144)        Format(YUY2, 0x8d2681)
[2014-10-22 21:20:03(424)]        MinCroppingSize(160, 120)        MaxCroppingSize(160, 120)        Format(YUY2, 0x32595559)
[2014-10-22 21:20:03(432)]        MinCroppingSize(160, 120)        MaxCroppingSize(160, 120)        Format(YUY2, 0x8d2681)
[2014-10-22 21:20:03(437)]        MinCroppingSize(640, 480)        MaxCroppingSize(640, 480)        Format(YUY2, 0x32595559)
[2014-10-22 21:20:03(444)]        MinCroppingSize(640, 480)        MaxCroppingSize(640, 480)        Format(YUY2, 0x8d2681)
[2014-10-22 21:20:03(451)]        Video Config Size(320, 240)        Format(YUY2, 25fps)
[2014-10-22 21:20:03(552)]        video init finish:320x240, YUY2, fps:25
[2014-10-22 21:20:05(425)]        video codec init:codec:1, 15fps, 320x240, bitrate:60000, quality:3, preset:3, gop:60, handle:2