Recherche avancée

Sur d’autres sites (4344)

• GLIBCXX_3.4.9 not found when running ffmpeg from php in lampp server

  14 novembre 2020, par Rafaf Tahsin

  I've written a php program which creates a video from sequence of images using ffmpeg.

  



  <?php
    $res = shell_exec("ffmpeg -framerate 50 -i image/image%d.png -c:v libx264 -r 30 -pix_fmt yuv420p out.mp4 2>&1");
    echo "$res";


  


  When I run it,

  


  it says GLIBCXX_3.4.15 , GLIBCXX_3.4.9 , GLIBCXX_3.4.11 not found.

  


  


  ffmpeg : /opt/lampp/lib/libstdc++.so.6 : version `GLIBCXX_3.4.15' not

  


  found (required by /usr/lib/i386-linux-gnu/libjack.so.0) ffmpeg :

  


  /opt/lampp/lib/libstdc++.so.6 : version `GLIBCXX_3.4.9' not found

  


  (required by /usr/lib/i386-linux-gnu/libzmq.so.3) ffmpeg :

  


  /opt/lampp/lib/libstdc++.so.6 : version `GLIBCXX_3.4.11' not found

  


  (required by /usr/lib/i386-linux-gnu/libopencv_core.so.2.4) ffmpeg :

  


  /opt/lampp/lib/libstdc++.so.6 : version `GLIBCXX_3.4.9' not found

  


  (required by /usr/lib/i386-linux-gnu/libopencv_core.so.2.4)

  


  


  But from the terminal, ffmpeg -framerate 50 -i image/image%d.png -c:v libx264 -r 30 -pix_fmt yuv420p out.mp4 command works fine. Why php can't find the libraries while from the terminal it works fine ? and what should I do to fix the problem in php ? Thanks in advance.

  


• cx_freeze - opens command window when running ffmpeg.exe or ffplay.exe through the GUI of the program created - how to hide this ?

  14 août 2020, par James Allnutt

  I have built an MSI using cx_freeze for my python program tool.box.

  


  Everything works great - however, I implemented this snippet in my setup.py :

  


  base = None
if (sys.platform == "win32"):
    base = "Win32GUI"


  


  to hide the cmd window that would typically open when you run the final .exe cx_freeze produces.

  


  This works fine, and now when I launch, I do not see this blank cmd window.

  


  However - in my program, I have a few buttons that call ffplay.exe and ffmpeg.exe - previously, without that snippet, I could run the program and when I clicked those buttons no CMD window would appear - now, however, it does - and it shows the output of ffplay or ffmpeg.

  


  In my main.py, I have the following commands :

  


  command_play = [ffplay_path, originalAudio, "-ss", str(actual_start_segment), "-t", "10", "-nodisp", "-autoexit"]

ffmpeg_command = FFmpeg(
            inputs={originalAudio: None},
            outputs={new_filename: ['-ss', str(actual_start_segment), '-to', str(actual_end_segment), '-async', '1', '-strict', '-2', '-ar', '44100', '-ab', '56k', '-ac', '1', '-y']}
        )


  


  Both of which are set to not display the CMD window.

  


  They only seem to do so when I compile. Any suggestions on how I can hide these so my GUI based program doesn't have CMD windows appearing when the end user utilises it's features ?

  


• I'm running a process in Java and am getting stuck when I wait for it to finish

  31 juillet 2020, par nottAbott

  I have a Java program that is supposed to make copies of segments of a video and then stitch them back together, using ffmpeg. My "snip" method, the one that makes the segment files, has a problem, it gets stuck when I call "process.waitfor()". When I take it out, the videos load partly, but cannot be accessed until I close the program. When I try to delete them, while the program is running, it says that they cannot be deleted because they are in use. Could anyone lead me in the right direction ? Here is the method :

  


  //snips out all the clips from the main video
public void snip() throws IOException, InterruptedException {
    
    for(int i = 0; i < snippets.size(); i++) {
        //Future reference: https://stackoverflow.com/questions/9885643/ffmpeg-executed-from-javas-processbuilder-does-not-return-under-windows-7/9885717#9885717
        //Example: ffmpeg -i 20sec.mp4 -ss 0:0:1 -to 0:0:5 -c copy foobar.mp4
        String newFile = "foobar" + String.valueOf(i) + ".mp4";
        ProcessBuilder processBuilder = new ProcessBuilder("ffmpeg", "-i", videoName, "-ss",
                snippets.get(i).getStartTime(), "-to", snippets.get(i).getEndTime(), newFile);
        
        //I tried this first and then added in the process/process.waitfor below
        //processBuilder.start();
        
        Process process = processBuilder.start();
        process.waitFor();
        
        System.out.println("Snip " + i + "\n");
        
        //add to the formatted list of files to be concat later
        if(i == snippets.size() - 1) {
            stitchFiles += newFile + "\"";
        }
        
        else {
            stitchFiles += newFile + "|";
        }
    }
}