the O.S. is Linux. I have an old c++ code that writes raw SDI input from a capture device to a file. My intent is to modify this program and redirect the raw video from the SDI source to the stdin of ffmpeg. How can I do that? Is better to run ffmpeg within the c++ source code (how can I do that?)? Thank you very much.
linux run ffmpeg within c++ code
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Open a pipe, start mencoder and configure it to read from the pipe. Then write data to the pipe.
If you want to use a library, write a code (etc), then take a look into libav