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  • How to combine multiple ffmpeg streams into a single 4x4 collage ?

    31 janvier 2021, par CoryG

    I have a server with 16 video capture card channels coming into it and want to stream them with ffmpeg, is it possible to have another stream going out that is a 4x4 collage of the 16 unique channels ?

    



    Edit : Adding a bounty since no working answer has been submitted yet - will reward it to the first one that can show the code to produce a 4x4 grid of 16 live channels (input device being http:// localhost:8090/x.mpg where x= a number 0-15, 352x288 video in MPEG1VIDEO format, YUV420P color at 24-30FPS) - or code that leads me to that solution - the output will be located at http:// localhost:8090/all.mpg and will be a 1408x1152 mpg live stream.

    


  • How to combine multiple ffmpeg streams into a single 4x4 collage ?

    16 mars 2013, par CoryG

    I have a server with 16 video capture card channels coming into it and want to stream them with ffmpeg, is it possible to have another stream going out that is a 4x4 collage of the 16 unique channels ?

    Edit : Adding a bounty since no working answer has been submitted yet - will reward it to the first one that can show the code to produce a 4x4 grid of 16 live channels (input device being http:// localhost:8090/x.mpg where x= a number 0-15, 352x288 video in MPEG1VIDEO format, YUV420P color at 24-30FPS) - or code that leads me to that solution - the output will be located at http:// localhost:8090/all.mpg and will be a 1408x1152 mpg live stream.

  • macOS Sonoma Audacity 3.4.2 cannot find FFmpeg library

    12 février 2024, par Yogi Wannabe

    I installed Audacity 3.4.2 and FFmpeg 5.0.0 on macOS Sonoma. I configured Audacity to use FFMPEG, which it located automatically. But when I try opening a m4a audio file, Audacity says "without the optional FFmpeg library, Audacity cannot open this type of file". I also configured Audacity manually to use libavformat.dylib but that does not help either.

    


    I googled for some solutions, and one of them was to use a different FFmpeg library from https://lame.buanzo.org but that did not help either.

    


    Any pointers on how to get this to work ?
TIA

    


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