codec

I'm trying to capture images from an IP camera in real time. The stream works perfectly well in VLC, but OpenCV's cvQueryFrame() seems to jumble and corrupt the incoming images to the point of no recognition. Again, capturing from file works fine, but not a live stream. In case it makes a difference, I'm using an rtsp connection URL; I've also tried this with two different camera models (different brands), and the problem remains. Besides, the (I'm assuming) codec is outputting several errors of the following kind: Error at MB: 1746 and concealing 6000 DC, 6000 AC, 6000 MV errors . What can I

I have been working on a VoIP Application in C sharp language. The purpose of the project is VoIP Call Recording. It uses g729 Codec. I can extract the voice part from RTP payload. How to convert this Byte array to .wav format? Please help me. You can try to use ffmpeg.exe and work with it via command line 来源： https://stackoverflow.com/questions/13468240/how-to-convert-g729-encoded-byte-array-to-wav-in-c

I'm quite stumped on this issue. I have a large library of H.264 mp4 video files that I need to have play on iOS. Originally, I was targeting only iPad, but requirements have changed and now I need to include iPhone. But I've noticed that my iPod Touch, which has exactly the same OS version and build id as my iPad, won't play the same files that I've been successfully using on the iPad. I've confirmed this with a colleague who also has an iPhone and iPad with the same version & build. I've also seen the exact same behavior in the iPad simulator, but until now I figured it was a quirk of the

There is a system written in c#/.net. The client make screen shots (1-3 times/sec) and sends the screen shots to a high performance server for processing. I want to reduce network traffic. previously I sent Png images data. now I just check the important regions, and send these regions only if changes. Now I wondering what would happen if you use lossless codecs. There is a few exiting lossless video codecs. But how can I use it from c#/.net , and send the stream? I found a few AVI wrappers, like AForge.AVIWriter , but all save the result into file. (it's not possible to save it to a temporary

Hello and thanks for your time, I am creating an application that moves video files around to be processed by other applications. In the past, I have used mediainfo, and ffmpeg, in ruby to obtain codec information about each file. I would however like to transfer all of this into one beautiful cocoa app. I have searched and searched and still can't find a solution (without using ffmpeg) on how to do this. I am basically looking for the exact same info you get in the quicktime video inspector window (apple + i). Any help would be greatly appreciated, sample code, even more so. Thanks. You can

I have quite a weird question, but here it is: Is it possible, and are there any guides for writing a custom video codec in C++ or Java? Here's the weird part: I don't need to dive into those tons of info about audio and motion picture I don't understand. What I actually need is the technical stuff behind how to make a software layer between a movie player and a movie file. Here's why: I would like to create a library or ultimately 2 functions - encode / decode - in C++ / Java, which will take the RAW binary input of any type of file and encode / decode it according to a given password or