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:
October 28th, 2009 at 4:07 pm
Hi, Alex
Any news of the 180º rotation bug? Thank you
October 23rd, 2009 at 4:03 pm
Thanks for your attention. I apologize for being so terse in my descriptions of the problem - I may have mislead you. I don’t think the particular avi file is the problem, although I can still send you the file if you wish. The crash occurs when the program shuts down - not during playback or at the end of playback. The message I’m seeing is to the effect:
A native exception has occurred
Faulting module: quartz.dll
Callback:
IGraphBuilder.RemoveFilter() by DirectShowEx.clearGraph() by Player.Finalize().
I’m running this on two different CE6 devices with the same results.
Thanks again. Cheers.
October 22nd, 2009 at 9:13 pm
i mean not example application, i mean file that yuo trying to play
October 22nd, 2009 at 3:20 pm
Oops… forgot to mention, this is running on a WinCE6 device. But still, everything works perfectly, except during finalization. The example that blows up is the one included with the package. thanks.
October 21st, 2009 at 12:13 am
I havent check player class since like august 2009, but you can email me file which crashes example and i will check
October 20th, 2009 at 11:32 pm
rev 0.7.0.0 - Media player example crashes during finalization, referencing a problem in quartz.dll during RemoveFilter call. I’ve seen references on the net to this, pointing to problems with reference counts. Have you experienced problems with this?
October 15th, 2009 at 8:44 pm
2Rainchild yes this is manufacturers problem and i cant fix it! regarding flash that turns on permanently, you can turn off it by existing method flashOff when you took picture.
2hibbert i know this is SampleGrabber bug i`m going to fix it one day
October 15th, 2009 at 11:42 am
Hi Admin.
I have streched the image in the pictutebox and it is rotated for 180°.
hibbert
October 15th, 2009 at 9:55 am
I’ve tried this on my Samsung Omnia (i900), my Motorola MC75, and my Intermec CN3.
None of the flash/focus/zoom features seem to work on the Omnia.
The flash kinda works on the MC75 (it turns the flash on permanently, rather than flashing when taking the photo). The focus/zoom features don’t.
The works correctly on the CN3. The focus/zoom features don’t.
I assume the problem is the manufacturers haven’t fully supported the DirectShow framework within their drivers?
Great work in any case.
October 14th, 2009 at 8:09 am
Thank you John