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The LEADTOOLS Multimedia product line incorporates DirectShow capture operations.

For full details on LEADTOOLS Multimedia Capture properties, methods and events, refer to the CaptureCtrl Object.

Multimedia Capture functionality includes:

• Support for WDM, native DirectShow including DV, and Video for Windows capture devices.
• Programmatically select the capture devices to use.
• Compress Audio streams and Video streams while capturing.
• Output compressed and uncompressed AVI, Windows Media content, OGG, DVSD OGG, WAVE, MPEG1Audio (MP3), MPEG1 System, MPEG2 Program, DVD, and Network formats.
• Control the interleaving mode when writing AVI files.
• Control cameras (Brightness, Contrast, Zoom, Pan, etc.).
• Editing mode: Change capturing configuration without rebuilding the graph - speeds up graph modification.
• Save still bitmaps with control over format and quality.
• Save capture settings to files and streams. Settings include processors, compressors, devices, and controls.
• Support for built-in audio sources in video devices.
• Incoming video signal adjustment using the VideoProcAmp interface properties - Brightness, Contrast, Gamma, Hue, etc.
• Support for analog video capture devices configuration.
• Capture directly to a file or save images individually to memory.
• Flicker-free video and audio preview during capture.
• Video preview supports zooming: (Fit to window, stretch, 50 percent, 75 percent, 100 percent, 200 percent, and full screen)
• Use the audio source built into the video device or a different audio source.
• Support for closed captioning.
• Full support for TV tuners.
• Programmatically change channels.
• Programmatically change the video input sources including the TV Tuner, S-Video or composite video.
• Support for multiple built-in configuration dialog boxes.
• Obtain statistics during capture.
• Support for video and audio processing DirectShow or DirectX filters.
• Multiple capture modes:
  • Streaming video and audio.
  • Automatically triggered video frame sequences with or without audio.
  • Manually triggered video frame sequences with or without audio.
  • Still images.
  • Mask.
  • Inhibit Run.
• Built-in dialogs allow you to easily configure the capture devices. LEADTOOLS can display TV Tuner, crossbars and video capture pins and audio capture properties all in one dialog.
• Support for capturing live streaming video and audio from memory for all of your streaming video and audio needs.
• Capture preview supports three kinds of preview images:
  • As images come from the capture card, but before any video processors or compressors are applied.
  • After the video processors have been applied, but before the compressor is applied.
  • After the video processors and compressors are applied.
• Built-in support for generic multiplexer and renderers. LEADTOOLS Multimedia can create MPEG files, if MPEG video and audio encoders and an MPEG multiplexer are available on the computer.
• Create DV AVI files with the use of a DV multiplexer.
• Capture audio from DV devices and the audio and video data is not split (unless specified), resulting in faster capture and fewer dropped frames.
• Put data into a DV device: Download the video from a DV device, cut out unwanted pieces and put the good portion back into the DV device.
• Control DV tape functions such as play, pause, rewind, fast forward and record programmatically.
• Read and seek DV devices based on timecode information.
• Pause during capture.
• Capture a frame from a player.
• Adjust the amount of time sound is buffered during capture to synchronize video and audio previews.
• Display capture device properties without stopping the capture.
• Enumerate and select available capture sizes programmatically during capture.
• Stream from RTSP cameras.

Examples of applications that take advantage of the above functionality:

• Applications to create video and/or audio files.
• Applications that sample, grab and copy streaming audio and video to a file.
• Applications that capture music and video from the Internet.
• Applications that record streaming audio and video clips.
• Software for streaming audio and video hosting servers and sites.
• Software to create feeds from digital video cams for online live video streaming.
• Software to stream music videos.
• Applications to capture video and audio from capturing from interlaced and progressive scanning digital camcorders.
• Software PVR/DVR applications.
• Computer-based video recording applications.
• Security applications: record video when movement is detected. Record audio when a noise is detected.
• ATM video capturing system: start recording when a person approaches the ATM kiosk and stop when the person leaves.
• Video conferencing: grab each compressed video and audio sample and send it across the network medium.

See Also

CaptureCtrl Class

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