Video preview

Video and audio recording

(requires our Multipurpose DirectShow Encoder excepted for the .WMV or .ASF recording)

– timer-based recording (delayed start, timered stop, or create new file periodically)

– compression of the audio and video streams, “on-the-fly” or after recording

– pause/resume during recording, with possibility to create a new clip for each pause/resume

– video preview while recording

– recording to almost any format

Playback

– play most of the audio/video formats (some formats may require compatible decoders)

– play static images: .bmp, .png, .jpg, .gif, etc…

– trackbar control

– playlist support

– playback at higher or lower speed, forward or backward

– fast seeking, forward or backward

– synchronization of several TVideoGrabber player components

– play streaming sources

– opens static JPEG, BMP, PNG, GIF image files, allowing image processings and overlays

Frame capture

– to HBitmap, TBitmap, BMP and JPEG files

– during preview, recording or playback

Live streaming

– video streaming or audio broadcasting

– directly to the internet, from the platform running TVideoGrabber

– indirectly through a publishing point on a Windows Media Server

Motion detection

– the video frame area can be divided in motion detection cells, with a motion coefficient applied globally or to each individual cell

Multiple video windows

– on the same monitor or across several monitors

Overlays and video processing

– multiple text and image overlays

– video rotation

– alpha blending / chroma keying

– transparency

– top-down / left-right

– brightness, contrast, saturation, hue

– color processing

– deinterlacing

Screen capture/recording/streaming

– current monitor

– extended desktop across several monitors

– given window identified by its name or handle

– with or without cursor

Resizing

– cropping

– stretching

– zooming

Multiplexed inputs

– the TVideoGrabber mixer mode allows to mix several video and audio sources into a single video clip

Video clip from images

– video built from memory bitmaps or files (bmp, jpg, gif, png, etc…)

– the final frame rate can be adjusted at the end of the recording

Merging/Reencoding

through the Multipurpose DirectShow Encoder:

apply graphic and/or text overlays

extract sequences from a start and stop time

Audio VU-Meters

– “needle analog” style or “digital bargraph” style

Recommended CPU
Intel Core I5, Core I7, Core I9, AMD Ryzen, or equivalent/higher

Operating systems supported
Windows 11, Windows 10, Windows 8.1, Windows 7

IDE and development languages supported
C#, VB, Delphi, C++Builder, C++, QT

RTSP/RTMP/HTTP/ONVIF DirectShow Source Filter

可捕捉RTSP, RTMP, UDP, TCP, MMS, HTTP streams,未壓縮的音頻與視頻流，且可同時將本地流儲存成MP4, MKV, AVI, FLV或MOV檔案，無需視頻轉碼。

The filter can:

– decode and render live audio/video streams received through ONVIF, RTSP, RTSPS, RTMP, HTTP, HTTPS, UDP, RTP, MMS/MMSH protocols,
– record at the same time these sources to a file (.MP4, .TS, .FLV, .MOV, .AVI, .WMV/.ASF or .MKV file),
– record IP cameras with http/MJPEG URL or http/JPEG “snapshot” URL to MP4, MKV or AVI files,
– control the PTZ position of ONVIF cameras (Pan, Tilt, Zoom) with continuous, relative or absolute move and preset support,
– perform backtimed recording (pre-roll recording),
– connect asynchronously to the URL without blocking the main thread (the filter graph receives a notification when the connection completes),
– expose the uncompressed pins,
– capture snapshots,
– apply multiple text overlays over the decoded frames,
– adjust the brightness, hue, saturation,
– capture snapshots to a memory bitmap or to a file in BMP, JPG, PNG or TIFF format,
– encode the audio streams to PCM, MP3 or AAC, depending on the recording file name (e.g. H264/AAC for a MP4 recording),
– re-stream the URL to another destination in UDP unicast, UDP multicast
– while recording, generate new files on the fly without loosing frames and without pausing/stopping/restarting the graph.
– decode Youtube URLs

The filter includes sample callback capabilities. It includes internally the required multiplexers (MP4, FLV, MOV, AVI and MKV mux) and can save directly the native source samples (H264/H265/MJPEG/AAC, etc…) to the file.
Several instances of the filter can be used concurrently in the same application.

System requirements
Recommended: Intel Core I5, Core I7, Core I9, AMD Ryzen
Windows 11, Windows 10, Windows 8.1, Windows 7

Multipurpose DirectShow Encoder

The Datastead Multipurpose Encoder is a Directshow multiplexer and sink filter, able to transcode audio/video streams.

It can be used in 2 different ways:
– from the TVideoGrabber SDK as compression/recording/streaming codecs to encode in various formats (c.f. “Datastead Encoder” in the TVideoGrabber SDK help),
– as a DirectShow Sink filter to compress/encode audio/video streams through the FFmpeg command line.

Note: if the MultiPurpose Encoder is used as plugin from TVideoGrabber, the codec parameters can be set programmatically, without requiring the FFMpeg command line syntax.

It can encode in H264 through the OpenH264 codec, in HEVC/H265 through the Kvazaar codec, and supports hardware encoding through Intel QuickSync, NVidia NVENC and AMD AMF.

With this filter is is possible to encode the audio/video streams to various file containers (e.g. MP4), to stream in UDP or to push the video to media servers like Youtube, Wowza, Ant Media, etc…

This filter is natively supported by ourTVideoGrabber SDK, allowing to record or re-stream real time sources like webcams, HD PCIe cards or IP cameras.

To configure the filter, just invoke SetCommandLine from the filter interface and specify the desired command line.
Some examples are provided in the documentation.

Technically, when the Directshow graph runs, the transcoding process starts in the background, and stops when the graph is stopped. Pause/Resume is supported.

Several instances of the filter can be used concurrently in the same application.

System requirements
Recommended: Intel Core I5, Core I7, Core I9, AMD Ryzen, or higher
Windows 11, Windows 10, Windows 8.1, Windows 7