Does anybody have any clue what I need to do to get this working properly? It seems like maybe a permissions issue where I do not have permission to read from the stream? Or maybe my ffmpeg parameters are incorrect? I am able to open up the stream in VLC and OBS Studio no problem and it displays the video frames and plays the audio. NumBytesRead = read(pipeFD, buffer, inIOBufferFrameSize * 8) īut numBytesRead is always coming back as zero. Here is the code: FILE *readPipeFromFFMPEG = popen('Contents/MacOS/ffmpeg -i rtsp://192.168.0.30:8554/test -vn -acodec copy -flush_packets pipe:1', 'r+') Ĭhar *buffer = (char*)calloc(inIOBufferFrameSize * 8, 1)

But once I get that FILE* object and try to read binary data from it, it returns that zero bytes have been read.

I do get a FILE* that is not NULL back from a popen function call to execute ffmpeg on the input rtsp stream. All the code is written in the 'C' old-fashioned programming language. I am generating an rtsp stream using gstreamer in an iOS app and trying to use ffmpeg in a Mac OS X audio driver that I wrote using XCode to strip the audio out of the stream and then pump the audio to Skype or Zoom or whatever.

Obs studio ffmpeg rtsp