DirectShow.NETCF
DirectShow.NETCF - Library that allows you to use DirectShow (play multimedia, capture/compress/recompress/preview audio and video) on Windows Mobile 5 or older devices.
Current version: 2.2.0.0
Available:
DirectShowNETCF
ComImports + PInvoke necessary API + some useful classes and methods
DirectShowNETCF.Player
Player class allows you to play audio and video files.
Methods:
- public bool renderFile(string fileName) - build graph for required file if it possible
- public bool play() - starts or continues play media file
- public bool stop() - stops play file
- public bool pause() - pauses play file
- public bool setVideoWindow(IntPtr owner) - if it video file then you can set control that video should be rendered on
DirectShowNETCF.Camera
Allows you to preview video from camera, still images (still images and preview in the same time) in future record video.
Methods and Properties:
- public CaptureType CapType - you can set one of type Preview, Still, PreviewStill
- public bool init() - builds graph (note: you should set CaptureType, befor init camera)
- public void release() - destroys graph (free all camera resources)
- public void stop() - stops graph
- public bool run(IntPtr owner) - runs graph and starts render captured video on required control
- public bool run() - runs graph
- public bool stillImage(string tmpPath) - stills and saves video.
- public List<string> getMediaTypes() - returns list of supported resolutions
- public void setMediaType(int index) - changes resolution from current to required
- public bool resize(IntPtr owner, int width, int height) - call this method if you resized preview control and you want preview to be stretched for new control size
- public bool flashOn() - turns flash on
- public bool flashOff() - turns flash off
- public bool zoomOut() - Zoom -
- public bool zoomIn() - Zoom +
- public bool focusMinus() - Focus -
- public bool focusPlus() - Focus +
- public bool autoFocusOff() - Turns Off autofocus
- public bool autoFocusOn() - Turns On autofocus
DirectShowNETCF.Camera.AMCamera
Allows you to preview video from camera and grab raw frames, also allows to receive frames from camera without previewing
Methods and Properties:
- public bool init(bool nullPreview) - builds graph
- public void release() - destroys graph (free all camera resources)
- public void stop() - stops graph
- public bool run(IntPtr owner) - runs graph and starts render captured video on required control
- public IntPtr grabFrame(ref long bufSize) - returns raw frame and buffer size, you have to free buffer when you dont need it (call DirectShowNETCF.PInvoke.LocalFree(IntPtr))
- public bool getGrayScaleImage(IntPtr scan0, int stride) - grabs raw frame and make grayscale image from it. Now works wor rgb565 and YV12 formats.
- public void getParams(out int width, out int height, out RawFrameFormat format) - returns width, height and format of raw frame
- public void startDrawText(string text) - draws text on preview
- stopDrawText() - stops draw text
- public List<string> getMediaTypes() - returns list of supported resolutions
- public void setMediaType(int index) - changes resolution from current to required (you have to call init and start again after changing resolution)
- public bool resize(IntPtr owner, int width, int height) - call this method if you resized preview control and you want preview to be stretched for new control size
- public bool flashOn() - turns flash on
- public bool flashOff() - turns flash off
- public bool zoomOut() - Zoom -
- public bool zoomIn() - Zoom +
- public bool focusMinus() - Focus -
- public bool focusPlus() - Focus +
- public bool autoFocusOff() - Turns Off autofocus
- public bool autoFocusOn() - Turns On autofocus
- public bool drawTarget(Rect rect, int type) - draws target on preview, you can define rect and target type
- public bool stopDrawTarget() - stops draw target on preview
- public bool getRgb565(IntPtr scan0) - grabs raw frame and makes rgb565 image from it. Now works wor rgb565 and YV12 formats.
DirectShowNETCF.Camera.AMCameraEx
Allows you to preview video from camera, grab raw RGB24 frames, apply effects for video, draws up to 10 bitmaps on preview
Methods and Properties:
- public bool init(RotationType rotationType) - builds graph (you can choose type of rotation: None, Auto, Degree90)
- public void release() - destroys graph (free all camera resources)
- public void stop() - stops graph
- public bool run(IntPtr owner) - runs graph and starts render captured video on required control
- public void fixPreview(bool fix) - fixes preview for Toshiba and LG devices as they have incorrect Chroma buffer ordering
- public IntPtr grabFrame() - returns raw frame (RGB24, size = 3 * width * height), you have to free buffer when you dont need it (call DirectShowNETCF.PInvoke.LocalFree(IntPtr))
- public void applyEffect(Effets effect) - applies one of availabel effects (none, grayscale, black and white, sepia, edge detection and cropoval)
- public void drawBitmap(IntPtr ptr, int id, int x, int y, int width, int height) - draws bitmap on preview
- public void drawTransparentBitmap(IntPtr ptr, int id, int x, int y, int width, int height, int r, int g, int b) - draws bitmap on preview except pixels that the same with transparent color
- public void blendBitmap(IntPtr ptr, int id, int x, int y, int width, int height, int blend) - blends preview and required bitmap
- public void eraseBitmap(int id) - Erases earlier drawn bitmap
- public void getRect(out int width, out int height) - returns width and height of raw frame
- public List<string> getMediaTypes() - returns list of supported resolutions
- public void setMediaType(int index) - changes resolution from current to required (you have to call init and start again after changing resolution)
- public bool resize(IntPtr owner, int width, int height) - call this method if you resized preview control and you want preview to be stretched for new control size
- public bool flashOn() - turns flash on
- public bool flashOff() - turns flash off
- public bool zoomOut() - Zoom -
- public bool zoomIn() - Zoom +
- public bool focusMinus() - Focus -
- public bool focusPlus() - Focus +
- public bool autoFocusOff() - Turns Off autofocus
- public bool autoFocusOn() - Turns On autofocus
NullCamera
Allows to grab frames from camera without preview
Methods:
- public bool init() - builds grap
- public void release() - destroys graph
- public void stop() - stops graph
- public bool run() - runs graph
Events:
- EventHandler<FrameEventArgs> GotFrame - fires every time we got new frame from camera.
AMCameraExControl 1.5.0.0
Control that allows you to preview stream from camera, grab bitmaps, draw bitmap on preview, control flash/focus/zoom (if your camera allows it)
Methods and Properties:
- public bool Start() - starts preview
- public void Stop() - stops camera
- public Bitmap GrabFrame() - grabs current frame and returns it as Bitmap
- public void FixPreview(bool needFix) - fix preview for Toshiba and LG devices
- public void Overlay(Bitmap bmp, int id, int x, int y) - draws bitmap on preview, x and y - coord of left top corner, id - id that will be used to erase bitmap when you need
- public void OverlayTransparent(Bitmap bmp, int id, int x, int y, Color transparentColor) - draws bitmap on preview except pixels that equal to transparentColor, x and y - coord of left top corner, id - id that will be used to erase bitmap when you need
- public void BlendBitmap(Bitmap bmp, int id, int x, int y, byte blend) - blends preview and passed bitmap
- public void eraseBitmap(int id) - Erases earlier drawn bitmap
- public Effects Effect - allows you to aplly 1 of supported effects (None, GrayScale, BlackAndWhite, EdgeDetection, CropOval)
- public bool FlashOn() - turns flash on
- public bool FlashOff() - turns flash off
- public bool ZoomOut() - Zoom -
- public bool ZoomIn() - Zoom +
- public bool FocusMinus() - Focus -
- public bool FocusPlus() - Focus +
- public bool AutoFocusOff() - Turns Off autofocus
- public bool AutoFocusOn() - Turns On autofocus
- Allows to handle mouse click (mouse down)
PlayerControl 1.5.0.0
Player class allows you to play audio and video files and mms streams. Also player allow to seek on media, control volume and grab frames.
Properties:
- public bool Loop - if true then when video ended starts play again
- public int VideoWidth - real video width
- public int VideoHeight - real video height
- public int Volume - you can control player volume (range 0-10000)
- public int Balance - you can control sound balance
- public int BitRate - video bitrate if possible to detect
Methods:
- public void OpenFile(string filePath) - Builds graph that allows to play required file
- public void Play() - starts or continues play media file
- public void Stop() - stops play file
- public void Pause() - pauses play file
- public void Seek(TimeSpan position) - Sets media to required position
- public TimeSpan GetDuration() - Gets Duration of media file
Events:
- public event EventHandler MediaFailed - fiers if its impossible to render file
- public event EventHandler MediaEnded -fiers when file plaed to the end
- public event EventHandler<ProgressEventArgs> MediaProgress - fiers every 0,3 seconds and informs about current progress
P.S:
July 29th, 2010 at 10:36 pm
Sorry, I just figured it out. Barcode scanner was initialized. After stoping the barcode scanner everything worked just fine.
July 29th, 2010 at 10:22 pm
I am able to run simple demo of the application on my MC75/winmo 6.1 .Net 3.5, but when I integrate the same code into my production code I get a CameraFilterError when trying to call camera.init(false) on the AMCamera object. Any ideas?
July 26th, 2010 at 12:53 pm
Hi,
DirectShowNETCF.Camera.Camera.getMediaTypes() return a blank list on HTC HD2, but works fine with other devices.
Any idea why ?
Regards
June 7th, 2010 at 5:35 pm
i got, i dont do anything specific there… if it does not return mediatypes then there you doing something wrong or you device got poor driver
June 7th, 2010 at 2:30 pm
Has anyone got the camera functions to work on a WM 6.5 device?
When you try to call DirectShowNETCF.Camera.Camera.getMediaTypes() a blank list is returned….
May 6th, 2010 at 10:19 pm
yes current version will work during may 2010 then it will crash application… and yes you will see demo blended image, if you want to remove it you should buy library
May 6th, 2010 at 8:07 pm
Alex,
A little more info. My MC55 had powered all the way down so the clock reset to 1/1/2007. I changed the clock to today 4/5/2010 and the “demo version” message box went away.
However, there is now a graphical overlay on the preview window that says “Demo Version”. It is a light blue semi-transparent square.
Any Ideas?
May 6th, 2010 at 7:46 pm
Hi Alex,
Great job on this library!
I am running an MC55 and have two Questions:
1. When I run the CameraAM example (no compile, just direct copy from download and click “Start”) I get a message box that says “DemoVersion Experied”.
2. When I run the AMCameraGrab example I get an exception that says “Method not found: init() DirectShowNETCF.Camera.AMCamera.AMCamera ”
Any Ideas?
April 25th, 2010 at 2:23 pm
version 2.2.0.0 released:
1) AMCameraEx - added function fixPreview - some Tosiba/LG devices got wrong Chroma buffer ordering as result we got incorrect preview, fixPreview fixes this issue
2) AMCameraEx - fixed bug with overlaying images
3) AMCameraEx - added new function blendBitmap it allows to blend preview and required bitmap
April 25th, 2010 at 2:20 pm
2kike88, yes demo message box will be in PlayerControl until i implement own renderer