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  • ffmpeg - produces corrupted file

    1er mai 2015, par pomegranate

    I have a mp4 file that I need to convert to avi to run a matlab script on. This script strips the file of any audio, so then I have to merge it back with the audio and then reconvert the avi to mp4. I’m doing this in a number of steps, and am uncertain at which point I’m screwing the commands up... basically, the final mp4 file I create it corrupted and cannot be played in quicktime (though it does work in VLC).

    Here are the steps I am taking :

    1) ffmpeg -i original.mp4 -acodec copy -vcodec copy original.avi
      This converts mp4 to avi.
    2) ffmpeg -i original.mp4 -acodec copy original.aac
      This gets the audio from the mp4.
    3) Run matlab script, which produces new-no-sound.avi
    4) ffmpeg -i new-no-sound.avi -i original.aac -c:v copy -c:a aac -strict experimental new-with-sound.avi
      This merges the old audio with the new avi file
    5) ffmpeg -i new-no-sound.avi -c:v libx264 -crf 19 -preset slow -c:a libfaac -b:a 192k -ac 2 final-version.mp4
      This converts the new merged file to mp4.

    Here’s the ffmpeg -i from the original.mp4 :

     Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2mp41
    encoder         : Lavf54.29.104
    Duration: 00:00:01.77, start: 0.000000, bitrate: 9920 kb/s
    Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 9978 kb/s, 59.94 fps, 59.94 tbr, 2997 tbn, 2997 tbc (default)
    Metadata:
     handler_name    : VideoHandler
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 52 kb/s (default)
    Metadata:
     handler_name    : SoundHandler

    And here is it for new-no-sound.avi :

    Input #0, avi, from 'new-no-sound.avi':
    Duration: 00:00:02.12, start: 0.000000, bitrate: 1325789 kb/s
    Stream #0:0: Video: rawvideo, bgr24, 1280x720, 1336298 kb/s, 59.94 fps, 59.94 tbr, 59.94 tbn, 59.94 tbc

    Finally, here it is for final-version.mp4

    Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf55.48.100
    Duration: 00:00:02.21, start: 0.023220, bitrate: 2117 kb/s
    Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuv444p, 1280x720, 2108 kb/s, 59.94 fps, 59.94 tbr, 11988 tbn, 119.88 tbc (default)
    Metadata:
     handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 43 kb/s (default)
    Metadata:
     handler_name    : SoundHandler

    Any advice for where I might be going wrong ?

  • Révision 19837 : Correction et amélioration dans l’importation d’une sauvegarde :

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  • Call bash function in Java

    16 mai 2023, par ilie alexandru

    I have been using Java with bash in order to make some things easier, some examples :

    


    From the main class to call a subclass in order to use bash commands :

    


    Main classs :

    


        //Checking if the server already has the user or not
    CheckUser checkUser = new CheckUser();
    int checuser= checkUser.CheckUserMethod(user);
    if( 1 != checuser) { // Yoda notation

        //Making the directory for the user
        File userDirectory = new File(this.directory);
        userDirectory.mkdir();
    }


    


    The class that will call the ".sh" file :

    


    public class CheckUser {

protected int CheckUserMethod(String user){
    try {

        Process p = Runtime.getRuntime().exec(new String[]{"bash", "-c", "cd ~/Final-Year-Spring/src/main/java/query && ./checkuser.sh " + user});
        BufferedReader srdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));
        String s =srdInput.readLine();
        if(s==null){
            return 0;
        }else {
            return Integer.parseInt(s);
        }
    }catch (Exception e){
        throw new RuntimeException(e);
    }
}


    


    


    The bash file :

    


    #!/bin/bash

# shellcheck disable=SC2237
if ! [ -z "$1" ]
then
  cd ~/Final-Year-Spring/maps/ && find "$1" -maxdepth 0 -type d -printf 1
fi


    


    Now you have a context.

    


    I am trying to call a bash file that will execute a ffmpeg command. For instance, the same command when I am using the terminal :

    


    ffmpeg -ss 00:00:00.75 -to 00:00:00.93 -i ~/IdeaProjects/Final-Year-Spring/datassets/Alex/check/5535415699068794046/00009.mp4 -ss 00:00:01.71 -to 00:00:01.82 -i ~/IdeaProjects/Final-Year-Spring/datassets/Alex/check/5535415699068794046/00009.mp4 ~/IdeaProjects/Final-Year-Spring/maps/output.mp4S


    


    Also a screenshot with the command in the cli :

    


    enter image description here

    


    The result of the cli command :

    


    enter image description here

    


    Now I am trying to do the same thing for multiple videos using Java and Bash.

    


    The class that will create the input and the time :

    


    public String CreateNewVideoMethod()

    


    ArrayList<string> arrayList = new ArrayList&lt;>();&#xA;&#xA;MainSearch mainSearch = new MainSearch(this.array, this.search);&#xA;HashMap>>> map = new HashMap&lt;>();&#xA;        map = mainSearch.SearchInVideous();&#xA;&#xA;&#xA;HashMap>> file = new HashMap&lt;>();&#xA;file=map.get(this.array.get(1));&#xA;&#xA;file.forEach((k,v)->{&#xA;    StringBuilder stringBuilder = new StringBuilder(this.defaultpth);&#xA;    stringBuilder.append("/")&#xA;            .append(this.array.get(0))&#xA;            .append("/")&#xA;            .append(this.array.get(1))&#xA;            .append("/")&#xA;            .append(k)&#xA;            .append("/")&#xA;            .append("InfoVideo.txt");&#xA;&#xA;    GetVideoPath getVideoPath = new GetVideoPath();&#xA;    String videoPath = getVideoPath.GetVideoPathMethod(stringBuilder);&#xA;&#xA;    v.forEach((k1,v1)->{ // iterate though the words&#xA;        v1.forEach((k2,v2)->{ // iterate though the times&#xA;&#xA;            String doubleAsStringForKey = String.valueOf(k2);&#xA;            String[] arr = doubleAsStringForKey.split("\\.");&#xA;&#xA;            String doubleASStringForValue = String.valueOf(v2);&#xA;            String[] arr2 = doubleASStringForValue.split("\\.");&#xA;&#xA;            if(k2>10){&#xA;&#xA;                StringBuilder stringBuilder1 = new StringBuilder();&#xA;                stringBuilder1.append(" -ss ")&#xA;                        .append("00:00:")&#xA;                        .append(arr[0])&#xA;                        .append(".")&#xA;                        .append(arr[1])&#xA;                        .append(" -to ")&#xA;                        .append(" 00:00:")&#xA;                        .append(arr2[0])&#xA;                        .append(".")&#xA;                        .append(arr2[1])&#xA;                        .append(" -i ")&#xA;                        .append(videoPath);&#xA;                arrayList.add(String.valueOf(stringBuilder1));&#xA;            }&#xA;                else{&#xA;&#xA;                    StringBuilder stringBuilder1 = new StringBuilder();&#xA;                    stringBuilder1.append(" -ss ")&#xA;                            .append("00:00:0")&#xA;                            .append(arr[0])&#xA;                            .append(".")&#xA;                            .append(arr[1])&#xA;                            .append(" -to ")&#xA;                            .append("00:00:0")&#xA;                            .append(arr2[0])&#xA;                            .append(".")&#xA;                            .append(arr2[1])&#xA;                            .append(" -i ")&#xA;                            .append(videoPath);&#xA;                    arrayList.add(String.valueOf(stringBuilder1));&#xA;                }&#xA;&#xA;        });&#xA;    });&#xA;&#xA;});&#xA;&#xA;BashFIleForCreatingNewVideo bashFIleForCreatingNewVideo = new BashFIleForCreatingNewVideo();&#xA;bashFIleForCreatingNewVideo.BashFileForCreatingNewVideo(arrayList);&#xA;</string>

    &#xA;

    The class that must call the ".sh" file :

    &#xA;

    public class BashFIleForCreatingNewVideo {&#xA;&#xA;    protected String BashFileForCreatingNewVideo(ArrayList<string> arrayList){&#xA;        try {&#xA;&#xA;        StringBuilder stringBuilder = new StringBuilder();&#xA;&#xA;        for(String str : arrayList){&#xA;            stringBuilder.append(str);&#xA;        }&#xA;        Process p = Runtime.getRuntime().exec(new String[]{"bash", "-c", "cd ~/IdeaProjects/Final-Year-Spring/src/main/java/com/FinalYearProjectServer/Get_Requests/CreateNewVideo &amp;&amp; ./createNewVideo.sh ", String.valueOf(stringBuilder), String.valueOf(arrayList.size()-1), "./maps/outputstream.mp4"});&#xA;        BufferedReader srdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));&#xA;        String s =srdInput.readLine();&#xA;&#xA;        if(s==null){&#xA;            return "Error";&#xA;        }else {&#xA;            System.out.println(s);&#xA;            return s;&#xA;        }&#xA;&#xA;        } catch (IOException e) {&#xA;            throw new RuntimeException(e);&#xA;        }&#xA;&#xA;    }&#xA;}&#xA;</string>

    &#xA;

    The script file :

    &#xA;

    #!/bin/bash&#xA;&#xA;arr=( "$@" )&#xA;&#xA;echo "${arr[*]}"&#xA;&#xA;ffmpeg "${arr[0]}" -filter_complex concat=n="${arr[1]}":v=1:a=1 "${arr[2]}"&#xA;

    &#xA;

    What is passed to the script, small exaple, this is a string :

    &#xA;

     -ss 00:00:00.75 -to 00:00:00.93 -i ~/IdeaProjects/Final-Year-Spring/datassets/Alex/check/5535415699068794046/00009.mp4 -ss 00:00:01.71 -to 00:00:01.82 -i ~/IdeaProjects/Final-Year-Spring/datassets/Alex/check/5535415699068794046/00009.mp4 -ss 00:00:00.09 -to 00:00:00.34 -i ~/IdeaProjects/Final-Year-Spring/datassets/Alex/check/5535415699068794046/00027.mp4&#xA;

    &#xA;

    The next parameter is the number of videos that must concatenate and the last parameter is where the output must be.

    &#xA;

    My problem is the Bash file is not executing even the echo command or doing something. Do you have any suggestion, because I thing is about the way of how I am passing the array to the Bash file.

    &#xA;

    Ok so I am trying to use ProcessBuilder :

    &#xA;

            String[] command = {"bash","ffmpeg", String.valueOf(stringBuilder), "-filter_complex concat=n="&#x2B;String.valueOf(arrayList.size()-1)&#x2B;":v=1:a=1", "~/IdeaProjects/Final-Year-Spring/maps/output1.mp4"};&#xA;        ProcessBuilder p = new ProcessBuilder(command);&#xA;        Process p2 = p.start();&#xA;        BufferedReader srdInput;&#xA;        srdInput = new BufferedReader(new InputStreamReader(p2.getInputStream()));&#xA;        String s =srdInput.readLine();&#xA;

    &#xA;