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Solved: SampleGrabber with DivX files (DSPack) | Experts ...
https://www.experts-exchange.com/questions/23305560/SampleGrabber-with-DivX-files-DSPack.html
SampleGrabber with DivX files (DSPack) Dream- asked on 4/8/2008. Multimedia Programming Delphi. 2 Comments 1 Solution 3370 Views Last Modified: 11/13/2013. I need to capture frames from movies. I am currently using DSPack and it seems to work except for certain codecs, especifically the DivX-Xvid family.
DSPack - TSampleGrabber problem - delphi
http://www.delphigroups.info/2/1/278892.html
VideoWindow but the SampleGrabber's OnBuffer event is not firing. I think this must be because I haven't set something up properly - but I can't figure out what. I have been through the DSPack docs, but I just don't understand what's missing. Any help would be appreciated. Best regards . …
c# - How do I use SampleGrabber to build a spectrum ...
https://stackoverflow.com/questions/4595165/how-do-i-use-samplegrabber-to-build-a-spectrum-visualizer-for-audio
It is as followed: Source->demux->audio/video decoders->inf pin tees->renderers. The graph also works with the sample grabber attached. I tried playing around with samplegrabberCB, but there seems to be only two functions of relevance: SampleCB and BufferCB, buth of which I can't find much documentation on.
DSPack-Lazarus/DSPack.pas at master - GitHub
https://github.com/TheBlackSheep/DSPack-Lazarus/blob/master/DSPack.pas
{Signals that the current audio stream number changed for the main title.<br> The current audio stream can change automatically with a navigation command: authored on the disc as well as through application control by using the IDvdControl2 interface.<br> <b>stream:</b> value indicating the new user audio stream number. Audio stream numbers
Solved: Delphi, DSPack, Directshow, and streaming video ...
https://www.experts-exchange.com/questions/20604292/Delphi-DSPack-Directshow-and-streaming-video-Part-2.html
The stream should be "video only" as I don't want the audio streamed. I don't have a particular need for those numbers, but the default profiles described by dspack for video only are low-bandwidth only, 28.8 and 56k respectively, and only the 56k one seems to work when assigning a new value to the TASFWriter profile property.
Copy pBytes:Pointer rgb to Graphics32 canvas, fastest way?
https://borland.public.delphi.multimedia.narkive.com/evYD0o7K/copy-pbytes-pointer-rgb-to-graphics32-canvas-fastest-way
I have edited DSPACK samplegrabber demo to use device capture and Graphics32 image canvas. I am not sure about how to use "pBuffer: Pointer" variable most effective way. See example, now I increment pointer one byte when traveling through a image size.
关于delphi中如何在视频采集中选择Video_Composite,S-Video?[已 …
https://wedelphi.com/t/412341/
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dspack的SampleGrabber抓图，抓到内容为空。200分(200分) | …
https://wedelphi.com/t/371636/
用SampleGrabber抓下来的图，居然是空的，打开什么都没有，可以录像下来~！ procedure TMainForm.StartButtonClick(Sender: TObject); var multiplexer: IBaseFilter; Writer...
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