video-processing

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How to seek in FFmpeg C/C++

Does anyone know how to implement seeking by seconds (or milliseconds) in FFmpeg. I curr开发者_JAVA百科ently have a loop running through the frames of a video using av_read_frame() and I want to deter[详细]

2023-02-15 20:41 分类：问答
Overlay "Structured Glas" Effect on iPhone Camera Feed - General Directions

I\'m currently trying to write an app, that would be able to show the effects of glas, as seen through the iPhone Camera.[详细]

2023-02-15 08:47 分类：问答
Video Mining - Character Identification and Naming

Is there any cla开发者_JAVA技巧ss to add subtitles in video using JAVA? I think you can use Jubler to add,edit subtitles in video.Yes. You can use Jubler as suggested by u3050.[详细]

2023-02-14 02:35 分类：问答
How to extract all the frames from a video using MATLAB and do key frame extraction by any standard method?

I have a video to process frame by frame. I want to extract the key frames out of it. So the first task is to grab all the frames. We can read an AVI video using readavi but I am having no idea how to[详细]

2023-02-13 13:03 分类：问答
Playing a Video and grabbing frames using a timer

I am having trouble playing a video and grabbing frames. I need to grab frames to perform change detection among other t开发者_如何学编程hings...Is there a way of playing a video and grabbing frames p[详细]

2023-02-12 06:28 分类：问答
Sphinx4 Speech Recognition from a video

Does 开发者_如何转开发Sphinx4 support Speech-to-Text processing on video files? If yes, Does it need JMF?[详细]

2023-02-12 00:34 分类：问答
h264 packetization mode for FUA

We have got into couple of interop issues wh开发者_运维知识库ere, The video mode that is required by couple of endpoints in market are little different and only understands H.264 packetization modes ([详细]

2023-02-11 11:48 分类：问答
Android video recognition

I tried to google in hope to find any Google Goggles alike tools/libraries that would somewhat allow the developer to recognize objects in a video.[详细]

2023-02-11 07:11 分类：问答
How avi video file can be transformed into series of matrices?

i want to analyse videos given in avi format. For that I need to represent video as serie开发者_开发知识库s of matrices. Every matrix represents one frame from the video. How can I do it? I prefer to[详细]

2023-02-11 06:22 分类：问答
Finding out when the samplegrabber is ready in DirectShow

I am continuing work on my DirectShow application and am just putting the finishing touches on it. What the program is doing is going through a video file in 1 second intervals and capturing from the[详细]

2023-02-10 22:00 分类：问答