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simy8891

Video stream capture

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simy8891

Hello everyone,

I've got a very cr.. err low cost IP camera and I'd like to capture its video stream with autoit and save it to a file.

I've found this IP Camera script which looks to work ok for other people, unfortunately it doesn't with mine:

'?do=embed' frameborder='0' data-embedContent>>

I've played with FireBug and finally got the right URL which brings me straight to the video stream (only when using the below HTML):

<img onload="load_video()" src="http://IP:PORT/videostream.cgi?rate=0&amp;user=USERNAME&amp;pwd=PASSWORD&amp;next_url=tempsnapshot.jpg&amp;count=7" alt="video" id="imgDisplay">

This works great as it refresh almost instantaneously (I managed to get it to work with VLC too, but it's way slower in refreshing - talking of 10, 15 seconds delays).

Is there a way to capture this video stream and save it to a video format file?

I could then go ahead and try to build something around it.

Cheers! 

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simy8891

Was wondering if anybody could come up with an idea at least? :)

Thanks

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SmOke_N

This is url based?  Is there a standard API that your cr... err low cost camera has?

If it's only retrieving snapshots, have you tried InetRead() or InetGet()?


Common sense plays a role in the basics of understanding AutoIt... If you're lacking in that, do us all a favor, and step away from the computer.

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simy8891

Hi SmOke_N,

 

If it's only retrieving snapshots, have you tried InetRead() or InetGet()?

 

Thanks for your reply. No, I have not. Do you actually think it's a series of snapshots being updated? The video is very smooth but it might be.

As far as I know there's no API for it, this is the camera:

http://www.medisana.com/en/Health-control/Smart-Baby-Monitor/

How would you use inetRead/Get in the case it's a sequence of pictures? Shall I run an infinite loop and save them all in a tmp folder and once done implement an avi builder (which I've seen on the forum if I'm not mistaking).

Thanks a lot :)

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simy8891

Me again.

I've tried the below, which got the snapshots but it's way too slow so I'm missing most of the "action".

#include <InetConstants.au3>

$sFilePath = @ScriptDir & "\jpgs"
$sFileName = "testimage"
$sFileExt = ".jpg"

$count=0

While 1

    $tempFileName=$sFilePath&'\'&$sFileName&$count&$sFileExt
    $hDownload = InetGet("http://IP:PORT/snapshot.cgi?user=myuser&amp;pwd=mypwd", $tempFileName,$INET_FORCERELOAD)
    $count=$count+1

WEnd

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SmOke_N

Can you post the "load_video()" javascript (<script>data here</script>) function?


Common sense plays a role in the basics of understanding AutoIt... If you're lacking in that, do us all a favor, and step away from the computer.

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simy8891

I'm afraid it's not going to be very helpful, this is what I see with FireBug:

<td valign="middle" bgcolor="#E0E0E0" align="center">
<script>
document.write(imgsrc);
</script>
<img src="videostream.cgi?rate=0">
</td>

There's also an option to see the camera with a lower resolution (Mobile view) and that one is given by the below:

<img id="imgDisplay" onload="load_video()" src="http://IP:Port/snapshot.cgi?user=myusername&pwd=mypassword&next_url=tempsnapshot.jpg&count=41" alt="video">

I've also tried this with no luck:

#include <InetConstants.au3>

$sFilePath = @ScriptDir & "\jpgs"
$sFileName = "testimage"
$sFileExt = ".jpg"

$count=0

While 1

    $tempFileName=$sFilePath&'\'&$sFileName&$count&$sFileExt
    $hDownload = InetGet('<img onload="load_video()" src="http://IP:PORT/snapshot.cgi?rate=0&amp;user=myusername&amp;pwd=mypassword&amp;next_url=tempsnapshot.jpg&amp;count=7" alt="video" id="imgDisplay">', $tempFileName,$INET_FORCERELOAD)
    $count=$count+1

WEnd

Thanks for your support

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SmOke_N

Just trying to narrow down the actual stream and not the snapshot jpgs.

Might play around with directly (through the browser) seeing if you can connect to the videostream.cgi?rate=0


Common sense plays a role in the basics of understanding AutoIt... If you're lacking in that, do us all a favor, and step away from the computer.

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FireFox

Hi,

InetGet needs a correct url, try this instead :

$hDownload = InetGet("http://IP:PORT/snapshot.cgi?rate=0&user=myusername&pwd=mypassword&next_url=tempsnapshot.jpg&count=7", $tempFileName, $INET_FORCERELOAD)

Don't forget to replace the IP/PORT etc.
 
I'm wondering what is the "count" parameter for.
 
Br, FireFox.


 

OS : Win XP SP2 (32 bits) / Win 7 SP1 (64 bits) / Win 8 (64 bits) | Autoit version: latest stable / beta.
Hardware : Intel(R) Core(TM) i5-2400 CPU @ 3.10Ghz / 8 GiB RAM DDR3.

My UDFs : Skype UDF | TrayIconEx UDF | GUI Panel UDF | Excel XML UDF | Is_Pressed_UDF

My Projects : YouTube Multi-downloader | FTP Easy-UP | Lock'n | WinKill | AVICapture | Skype TM | Tap Maker | ShellNew | Scriptner | Const Replacer | FT_Pocket | Chrome theme maker

My Examples : Capture toolIP Camera | Crosshair | Draw Captured Region | Picture Screensaver | Jscreenfix | Drivetemp | Picture viewer

My Snippets : Basic TCP | Systray_GetIconIndex | Intercept End task | Winpcap various | Advanced HotKeySet | Transparent Edit control

 

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If $bManual is true enter the y2 screen pos. ; Return values .: 0 / 1 / -1 / GDI bitmap handle ; Author ........: UEZ ; Version .......: 0.92 build 2017-01-22 ; Modified ......: ; Remarks .......: Do not forget to dispose returned GDI bitmap handle for non clipboard mode using _WinAPI_DeleteObject! ; Related .......: ; Link ..........: ; Example .......: Yes ; =============================================================================================================================== Func _WinAPI_MarkScreenRegionAndCapture($iFillMode = 0, $bClipboard = False, $bManual = False, $iX1 = 0, $iY1 = 0, $iX2 = 0, $iY2 = 0) If @OSBuild > 6299 Then ;https://msdn.microsoft.com/en-us/library/windows/desktop/ms724832(v=vs.85).aspx DllCall("Shcore.dll", "long", "PROCESS_DPI_AWARENESS", 1) ;PROCESS_SYSTEM_DPI_AWARE = 1 (https://msdn.microsoft.com/en-us/library/windows/desktop/dn280512(v=vs.85).aspx) Else DllCall("User32.dll", "bool", "SetProcessDPIAware") EndIf Local $iOld = AutoItSetOption("MouseCoordMode", 1) If Not $bManual Then Local Const $hDesktop = WinGetHandle("[TITLE:Program Manager;CLASS:Progman]") Local Const $aFullScreen = WinGetPos($hDesktop) ;should work also on multi screens Local Const $iW = $aFullScreen[2], $iH = $aFullScreen[3] Local Const $hGUI_Screencapture = GUICreate("", $iW, $iH, $aFullScreen[0], $aFullScreen[1], $WS_POPUP, BitOR($WS_EX_TOPMOST, $WS_EX_LAYERED)) GUISetState(@SW_SHOW, $hGUI_Screencapture) Local Const $hDC = _WinAPI_GetDC($hGUI_Screencapture) Local Const $hGfxDC = _WinAPI_CreateCompatibleDC($hDC) Local Const $hBitmapGDI = _WinAPI_CreateCompatibleBitmap($hDC, $iW, $iH) Local $hObjOld = _WinAPI_SelectObject($hGfxDC, $hBitmapGDI) Local $tSize = DllStructCreate($tagSIZE) $tSize.x = $iW $tSize.y = $iH Local $tSource = DllStructCreate($tagPOINT) Local $tBlend = DllStructCreate($tagBLENDFUNCTION) $tBlend.Alpha = 0xFF $tBlend.Format = 1 Local $tDest = DllStructCreate($tagPOINT), $pPoint = DllStructGetPtr($tDest) $tDest.x = $aFullScreen[0] $tDest.y = $aFullScreen[1] Local Const $hPen = _WinAPI_CreatePen($PS_SOLID, 1, 0x0000FF) Local Const $hPen_Orig = _WinAPI_SelectObject($hGfxDC, $hPen) Local $hBrush, $iAlpha2, $iFlag $iFillMode = $iFillMode > 2 ? 2 : $iFillMode < 0 ? 0 : $iFillMode Switch $iFillMode Case 0 $hBrush = _WinAPI_CreateBrushIndirect($BS_SOLID, 0x808080) $iAlpha2 = 0xA0 $iFlag = $ULW_ALPHA Case 1 $hBrush = _WinAPI_CreateBrushIndirect($BS_HATCHED, 0x808000, $HS_DIAGCROSS) $iAlpha2 = 0x30 $iFlag = $ULW_ALPHA Case 2 $hBrush = _WinAPI_CreateBrushIndirect($BS_HOLLOW, 0x000000) $iAlpha2 = 0xFF ;not needed $iFlag = $ULW_COLORKEY EndSwitch Local $hBrush_Orig = _WinAPI_SelectObject($hGfxDC, $hBrush) Else If Not BitOr($iX1, $iX2, $iY1, $iY2) Then Return SetError(4, 0, 0) EndIf Local $aMPos[5], $aMPos_old[4], $tRECT = _WinAPI_CreateRect(0, 0, 0, 0) Do If $bManual Then $aMPos[2] = 1 Else GUISetCursor(16, 1, $hGUI_Screencapture) $aMPos = GUIGetCursorInfo($hGUI_Screencapture) $aMPos_old[0] = $aMPos[0] $aMPos_old[1] = $aMPos[1] $aMPos_old[2] = MouseGetPos(0) $aMPos_old[3] = MouseGetPos(1) EndIf Switch $aMPos[2] Case 0 ;display crosshair _WinAPI_BitBlt($hGfxDC, 0, 0, $iW, $iH, $hGfxDC, 0, 0, $CAPTUREBLT) _WinAPI_DrawLine($hGfxDC, $tDest.x, $aMPos[1], $iW, $aMPos[1]) _WinAPI_DrawLine($hGfxDC, $aMPos[0], $tDest.y, $aMPos[0], $iH) _WinAPI_UpdateLayeredWindow($hGUI_Screencapture, $hDC, $tDest, $tSize, $hGfxDC, $tSource, 0, $tBlend, $ULW_COLORKEY) Case 1 ;capture selected region If Not $bManual Then $tBlend.Alpha = $iAlpha2 While $aMPos[2] ;mark region GUISetCursor(14, 1, $hGUI_Screencapture) ;WinGetHandle(AutoItWinGetTitle())) $aMPos = GUIGetCursorInfo($hGUI_Screencapture) _WinAPI_BitBlt($hGfxDC, 0, 0, $iW, $iH, $hGfxDC, 0, 0, $CAPTUREBLT) ;clear bitmap ;draw rectangle $tRECT.Left = $aMPos_old[0] $tRECT.Top = $aMPos_old[1] $tRECT.Right = $aMPos[0] $tRECT.Bottom = $aMPos[1] _WinAPI_Rectangle($hGfxDC, $tRECT) If $iFillMode <> 2 Then _WinAPI_InvertRect($hGfxDC, $tRECT) _WinAPI_UpdateLayeredWindow($hGUI_Screencapture, $hDC, $tDest, $tSize, $hGfxDC, $tSource, 0, $tBlend, $iFlag) Sleep(10) WEnd _WinAPI_SelectObject($hGfxDC, $hObjOld) _WinAPI_ReleaseDC($hGUI_Screencapture, $hDC) _WinAPI_DeleteDC($hGfxDC) _WinAPI_DeleteObject($hBitmapGDI) _WinAPI_SelectObject($hGfxDC, $hPen_Orig) _WinAPI_DeleteObject($hPen) _WinAPI_SelectObject($hGfxDC, $hBrush_Orig) _WinAPI_DeleteObject($hBrush) GUIDelete($hGUI_Screencapture) ;capture region $aMPos[0] = MouseGetPos(0) $aMPos[1] = MouseGetPos(1) Else $aMPos_old[2] = $iX1 $aMPos_old[3] = $iY1 $aMPos[0] = $iX2 $aMPos[1] = $iY2 EndIf Local Const $hDC_Region = _WinAPI_GetDC(0) Local Const $hMemDC = _WinAPI_CreateCompatibleDC($hDC_Region) Local Const $iW_Region = Abs($aMPos[0] - $aMPos_old[2]) + 1, $iH_Region = Abs($aMPos[1] - $aMPos_old[3]) + 1 Local $hHBitmap_Captured = _WinAPI_CreateCompatibleBitmap($hDC_Region, $iW_Region, $iH_Region) $hObjOld = _WinAPI_SelectObject($hMemDC, $hHBitmap_Captured) _WinAPI_BitBlt($hMemDC, 0, 0, $iW_Region, $iH_Region, $hDC_Region, _ $aMPos[0] > $aMPos_old[2] ? $aMPos_old[2] : $aMPos[0], _ $aMPos[1] > $aMPos_old[3] ? $aMPos_old[3] : $aMPos[1], BitOR($SRCCOPY, $CAPTUREBLT)) Local $hHBitmap_Clipboard = _WinAPI_CopyImage($hHBitmap_Captured, 0, 0, 0, BitOR($LR_COPYDELETEORG, $LR_COPYRETURNORG)) _WinAPI_SelectObject($hHBitmap_Captured, $hObjOld) _WinAPI_DeleteDC($hHBitmap_Captured) _WinAPI_ReleaseDC(0, $hDC_Region) AutoItSetOption("MouseCoordMode", $iOld) If $bClipboard Then ;put captured region to clipboard If Not _ClipBoard_Open(0) Then _WinAPI_DeleteObject($hHBitmap_Clipboard) Return SetError(1, 0, 0) EndIf If Not _ClipBoard_Empty() Then _WinAPI_DeleteObject($hHBitmap_Clipboard) Return SetError(2, 0, 0) EndIf Local Const $hCP = _ClipBoard_SetDataEx($hHBitmap_Clipboard, $CF_BITMAP) If Not $hCP Or @error Then _WinAPI_DeleteObject($hHBitmap_Clipboard) Return SetError(3, 0, 0) EndIf _ClipBoard_Close() _WinAPI_DeleteObject($hHBitmap_Clipboard) Return 1 Else Return $hHBitmap_Clipboard EndIf EndSwitch Switch GUIGetMsg() Case $GUI_EVENT_CLOSE _WinAPI_SelectObject($hGfxDC, $hObjOld) _WinAPI_ReleaseDC($hGUI_Screencapture, $hDC) _WinAPI_DeleteDC($hGfxDC) _WinAPI_DeleteObject($hBitmapGDI) _WinAPI_SelectObject($hGfxDC, $hPen_Orig) _WinAPI_DeleteObject($hPen) GUIDelete($hGUI_Screencapture) AutoItSetOption("MouseCoordMode", $iOld) Return -1 EndSwitch Until False EndFunc ;==>_WinAPI_MarkScreenRegionAndCapture Might be useful...
       
      Download:  _WinAPI_MarkScreenRegionAndCapture.au3  (same as above in the code box)
       
      Tested only on Win10 x64 but should work also on other Window versions. If not please reply.
       
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