Video Device In TOP

From Derivative
Jump to: navigation, search


Summary

The Video Device In TOP can be used to capture video from an external camera, capture card, capture dongle, IP camera, or video decoder connected to the system. Multiple devices can simultaneously stream video into TouchDesigner by using multiple Device In TOPs. HD-SDI video can be streamed into TouchDesigner through capture cards such and those from Blackmagic Design.

Magewell.2.jpg Webcam.jpg CaptureCard.jpg DVcam.jpg WebcamMan.jpg

If the device does not seem to provide a video stream but it is visible in the Cameras parameter menu, make sure no other applications are currently using the device.

For Blackmagic Design, see Blackmagic Design.

For AJA, see AJA.

Also supported with native drivers are some Point Grey and Datapath SDI.

For Magewell HDMI-to-USB3 capture (highly recommended, no drivers, plug-and-play), see Magewell

For support of Bluefish devices, see Bluefish444 and Bluefish website.

IP Cameras include models from Allied Vision, Point Grey FLIR Flycapture2 and Spinnaker and Imaging Development Systems (IDS)

USB3 Cameras include models from Allied Vision, Point Grey FLIR Flycapture2 and Spinnaker and Imaging Development Systems (IDS)

Only a small subset of cameras from each manufacturer has been tested in-house, however it's expected that any modern camera from the supported manufacturer should work. If any issues are encountered please contact support@derivative.ca.

See also Video Device Out TOP.

PythonIcon.pngvideodeviceinTOP_Class


Parameters - Video In Page

Active active - When set to one the TOP captures the image stream from the camera or decoder.

Library library - - Selects the library to use to interface with the cameras.

  • DirectShow (WDM) directshow - Use DirectShow to interface with the camera on Windows (the camera should say it supports DirectShow or WDM.
  • Media Foundation mediafoundation - A replacement option for DirectShow with better support for custom webcam resolutions.
  • DataPath (RGBEASY) datapath - For use with DataPath cameras.
  • Allied Vision (GigE) alliedvisiongige - For use with Allied Vision cameras.
  • Point Grey / FLIR (FlyCapture2) pointgreyflycapture - For use with Point Grey cameras using the FlyCapture2 SDK. NOTE: We recommend using Spinnaker driver below when using Point Grey GigE cameras. Not supported on macOS.
  • Point Grey / FLIR (Spinnaker) pointgreyspinnaker - For use with Point Grey cameras using the Spinnaker SDK. Recommended for their GigE cameras. Not supported on macOS.
  • AVFoundation (macOS) avfoundation - Use AVFoundation to interface with the camera on macOS.
  • BlueFish444 bluefish444 - For use with BlueFish444 cameras.
  • AJA aja - For use with AJA cameras and video systems.

NOTE: The cameras supported by the custom libraries above will also work with DirectShow on Windows, but using the custom library allows access to more camera controls and the control settings are saved in the node.

Device device - Select which camera or decoder you want from this menu.

Specify IP specifyip - When using Allied Vision library allows you to specify the camera address by IP.

IP ip - The IP address used when Specify IP above is turned on.


Options options - - Opens the options or control panel for the camera. NOTE: Only works when using DirectShow (WDM) cameras.


Deinterlace deinterlace - - Sets which fields to capture.

  • Off off - Captures all fields.
  • Even even - Capture Even fields only.
  • Odd odd - Captures Odd fields only.
  • Bob (Split) bob - Alternatively shows the even then odd fields, resulting in twice the framerate being shown, and removing the interlacing artifacts.

Field Precedence precedence - - When using Bob (Split) deinterlacing, this selects which field is shown first for each frame.

  • Even even -
  • Odd odd -

TV Channel channel - Selects the TV channel if a TV tuner is used as the video input.

Signal Format signalformat - Some Blackmagic cards do not automatically set signal format, this parameter allows it to be set correctly.

Quad Link quadlink -

Input Pixel Format inputpixelformat - - Some capture devices support pixel formats other than 8-bit. For supported devices this will make the node attempt to use that capability.

  • 8-bit fixed (RGB) rgb8fixed -
  • 10-bit fixed (RGB) rgb10fixed -
  • 8-bit YUV 4:2:2 yuv4228fixed -

Async Upload to GPU asyncupload - This will upload video images to the GPU asynchronously, at the cost of using more GPU and CPU memory (about 3x as for this one node). The extra memory usage is only a concern if you are using Async Upload on a lot of nodes (many Movie File In TOPs for example, which use the same mechanism).

Note: Syncing is only supported by DataPath cards currently.

Syncing allows multiple nodes using multiple inputs and capture cards on a single system to ensure they are outputting frames in sync. Without this each node will be free running and will possible be outputting frames that came it at different times due to internal queuing. It's important the input sources are GenLocked to ensure all of their data arrives to all of the inputs at the same time, otherwise syncing will not work.

Sync Inputs syncinputs - Enabling syncing of multiple Video Device In TOPs.

Sync Group Index syncgroupindex - There can be multiple sync groups active in a .toe file. Nodes will only sync to other nodes that are part of the same sync group.

Max Sync Offset maxsyncoffset - Specified in milliseconds. The maximum difference in time two image could have arrived at be considered in-sync. Images that arrive at times more different than this offset will be considered to be part of different 'frame'.  


Parameters - Common Page

Output Resolution outputresolution - - quickly change the resolution of the TOP's data.

  • Use Input useinput - Uses the input's resolution.
  • Eighth eighth - Multiply the input's resolution by that amount.
  • Quarter quarter - Multiply the input's resolution by that amount.
  • Half half - Multiply the input's resolution by that amount.
  • 2X 2x - Multiply the input's resolution by that amount.
  • 4X 4x - Multiply the input's resolution by that amount.
  • 8X 8x - Multiply the input's resolution by that amount.
  • Fit Resolution fit - Multiply the input's resolution by that amount.
  • Limit Resolution limit - Multiply the input's resolution by that amount.
  • Custom Resolution custom - Enables the Resolution parameter below, giving direct control over width and height.

Resolution resolution - Enabled only when the Resolution parameter is set to Custom Resolution. Some Generators like Constant and Ramp do not use inputs and only use this field to determine their size. The drop down menu on the right provides some commonly used resolutions.

Resolution Menu resmenu -

Use Global Res Multiplier resmult - Uses the Global Resolution Multiplier found in Edit>Preferences>TOPs. This multiplies all the TOPs resolutions by the set amount. This is handy when working on computers with different hardware specifications. If a project is designed on a desktop workstation with lots of graphics memory, a user on a laptop with only 64MB VRAM can set the Global Resolution Multiplier to a value of half or quarter so it runs at an acceptable speed. By checking this checkbox on, this TOP is affected by the global multiplier.

Output Aspect outputaspect - - Sets the image aspect ratio allowing any textures to be viewed in any size. Watch for unexpected results when compositing TOPs with different aspect ratios. (You can define images with non-square pixels using xres, yres, aspectx, aspecty where xres/yres != aspectx/aspecty.)

  • Use Input useinput - Uses the input's aspect ratio.
  • Resolution resolution - Uses the aspect of the image's defined resolution (ie 512x256 would be 2:1), whereby each pixel is square.
  • Custom Aspect custom - Lets you explicitly define a custom aspect ratio in the Aspect parameter below.

Aspect aspect- - Use when Output Aspect parameter is set to Custom Aspect.

Aspect1 aspect1 -


Aspect2 aspect2 -

Aspect Menu armenu -

Input Smoothness inputfiltertype - - This controls pixel filtering on the input image of the TOP.

  • Nearest Pixel nearest - Uses nearest pixel or accurate image representation. Images will look jaggy when viewing at any zoom level other than Native Resolution.
  • Interpolate Pixels linear - Uses linear filtering between pixels. This is how you get TOP images in viewers to look good at various zoom levels, especially useful when using any Fill Viewer setting other than Native Resolution.
  • Mipmap Pixels mipmap - Uses mipmap filtering when scaling images. This can be used to reduce artifacts and sparkling in moving/scaling images that have lots of detail.

Fill Viewer fillmode - - Determine how the TOP image is displayed in the viewer. NOTE:To get an understanding of how TOPs work with images, you will want to set this to Native Resolution as you lay down TOPs when starting out. This will let you see what is actually happening without any automatic viewer resizing.

  • Use Input useinput - Uses the same Fill Viewer settings as it's input.
  • Fill fill - Stretches the image to fit the edges of the viewer.
  • Fit Horizontal width - Stretches image to fit viewer horizontally.
  • Fit Vertical height - Stretches image to fit viewer vertically.
  • Fit Best best - Stretches or squashes image so no part of image is cropped.
  • Fit Outside outside - Stretches or squashes image so image fills viewer while constraining it's proportions. This often leads to part of image getting cropped by viewer.
  • Native Resolution nativeres - Displays the native resolution of the image in the viewer.

Viewer Smoothness filtertype - - This controls pixel filtering in the viewers.

  • Nearest Pixel nearest - Uses nearest pixel or accurate image representation. Images will look jaggy when viewing at any zoom level other than Native Resolution.
  • Interpolate Pixels linear - Uses linear filtering between pixels. Use this to get TOP images in viewers to look good at various zoom levels, especially useful when using any Fill Viewer setting other than Native Resolution.
  • Mipmap Pixels mipmap - Uses mipmap filtering when scaling images. This can be used to reduce artifacts and sparkling in moving/scaling images that have lots of detail. When the input is 32-bit float format, only nearest filtering will be used (regardless of what is selected).

Passes npasses - Duplicates the operation of the TOP the specified number of times.

Channel Mask chanmask - Allows you to choose which channels (R, G, B, or A) the TOP will operate on. All channels are selected by default.

Pixel Format format - - Format used to store data for each channel in the image (ie. R, G, B, and A). Refer to Pixel Formats for more information.

  • Use Input useinput - Uses the input's pixel format.
  • 8-bit fixed (RGBA) rgba8fixed - Uses 8-bit integer values for each channel.
  • sRGB 8-bit fixed (RGBA) srgba8fixed - Uses 8-bit integer values for each channel and stores color in sRGB colorspace.
  • 16-bit float (RGBA) rgba16float - Uses 16-bits per color channel, 64-bits per pixel.
  • 32-bit float (RGBA) rgba32float - Uses 32-bits per color channel, 128-bits per pixels.
  • 10-bit RGB, 2-bit Alpha, fixed (RGBA) rgb10a2fixed - Uses 10-bits per color channel and 2-bits for alpha, 32-bits total per pixel.
  • 16-bit fixed (RGBA) rgba16fixed - Uses 16-bits per color channel, 64-bits total per pixel.
  • 11-bit float (RGB), Positive Values Only rgba11float - A RGB floating point format that has 11 bits for the Red and Green channels, and 10-bits for the Blue Channel, 32-bits total per pixel (therefore the same memory usage as 8-bit RGBA). The Alpha channel in this format will always be 1. Values can go above one, but can't be negative. ie. the range is [0, infinite).
  • 16-bit float (RGB) rgb16float -
  • 32-bit float (RGB) rgb32float -
  • 8-bit fixed (Mono) mono8fixed - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 8-bits per pixel.
  • 16-bit fixed (Mono) mono16fixed - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 16-bits per pixel.
  • 16-bit float (Mono) mono16float - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 16-bits per pixel.
  • 32-bit float (Mono) mono32float - Single channel, where RGB will all have the same value, and Alpha will be 1.0. 32-bits per pixel.
  • 8-bit fixed (RG) rg8fixed - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 8-bits per channel, 16-bits total per pixel.
  • 16-bit fixed (RG) rg16fixed - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 16-bits per channel, 32-bits total per pixel.
  • 16-bit float (RG) rg16float - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 16-bits per channel, 32-bits total per pixel.
  • 32-bit float (RG) rg32float - A 2 channel format, R and G have values, while B is 0 always and Alpha is 1.0. 32-bits per channel, 64-bits total per pixel.
  • 8-bit fixed (A) a8fixed - An Alpha only format that has 8-bits per channel, 8-bits per pixel.
  • 16-bit fixed (A) a16fixed - An Alpha only format that has 16-bits per channel, 16-bits per pixel.
  • 16-bit float (A) a16float - An Alpha only format that has 16-bits per channel, 16-bits per pixel.
  • 32-bit float (A) a32float - An Alpha only format that has 32-bits per channel, 32-bits per pixel.
  • 8-bit fixed (Mono+Alpha) monoalpha8fixed - A 2 channel format, one value for RGB and one value for Alpha. 8-bits per channel, 16-bits per pixel.
  • 16-bit fixed (Mono+Alpha) monoalpha16fixed - A 2 channel format, one value for RGB and one value for Alpha. 16-bits per channel, 32-bits per pixel.
  • 16-bit float (Mono+Alpha) monoalpha16float - A 2 channel format, one value for RGB and one value for Alpha. 16-bits per channel, 32-bits per pixel.
  • 32-bit float (Mono+Alpha) monoalpha32float - A 2 channel format, one value for RGB and one value for Alpha. 32-bits per channel, 64-bits per pixel.


TOPs
Add • Analyze • Anti Alias • Blob Track • Blur • Cache Select • Cache • Channel Mix • CHOP to • Chroma Key • Circle • Composite • Constant • Convolve • Corner Pin • CPlusPlus • Crop • Cross • Cube Map • Depth • Difference • DirectX In • DirectX Out • Displace • Edge • Emboss • Feedback • Fit • Flip • GLSL Multi • GLSL • HSV Adjust • HSV to RGB • In • Inside • Introduction To TOPs id• Kinect • Layout • Leap Motion • Level • Lookup • Luma Blur • Luma Level • Math • Matte • Monochrome • Movie File In • Movie File Out • Multiply • NDI In • NDI Out • Noise • Normal Map • Null • Oculus Rift • OP Viewer • OpenColorIO • OpenVR • Out • Outside • Over • Pack • Photoshop In • PreFilter Map • Projection • Ramp • RealSense • Rectangle • Remap • Render Pass • Render Select • Render • Reorder • Resolution • RGB Key • RGB to HSV • Scalable Display • Screen Grab • Screen • Select • Shared Mem In • Shared Mem Out • Slope • SSAO • Substance Select • Substance • Subtract • SVG • Switch • Syphon Spout In • Syphon Spout Out • Text • Texture 3D • Texture iltering• Texture Sampling arameters• Threshold • Tile • Time Machine • TOP• TOP iewer• Touch In • Touch Out • Transform • Under • Video Device In • Video Device Out • Video Stream In • Video Stream Out • Vioso • Web Render

An Operator Family that creates, composites and modifies images, and reads/writes images and movies to/from files and the network. TOPs run on the graphics card's GPU.

Each SOP has a list of Points. Each point has an XYZ 3D position value plus other optional attributes. Each polygon Primitive is defined by a vertex list, which is list of point numbers.

A CHOP outputs one or more channels, where a channel is simply a sequence of numbers, representing motion, audio, etc. Channels are passed between CHOPs in TouchDesigner networks. See also Export.

Unlike a Wire that connects nodes in the same Operator Family, a Link is the dashed lines between nodes that represent other data flowing between nodes, like CHOP Exports, node paths in parameters, and expressions in parameters referencing CHOP channels, DAT tables and other nodes.

The Graphics Processing Unit. This is the high-speed, many-core processor of the graphics card/chip that takes geometry, images and data from the CPU and creates images and processed data.

TOuch Environment file, the file type used by TouchDesigner to save your project.

The width and height of an image in pixels. Most TOPs, like the Movie File In TOP can set the image resolution. See Aspect Ratio for the width/height ratio of an image, taking into account non-square pixels.

The viewer of a node can be (1) the interior of a node (the Node Viewer), (2) a floating window (RMB->View... on node), or (3) a Pane that graphically shows the results of an operator.