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• Duplicate class I'm already using ffmpeg_kit_flutter_audio in my code : 5.1.0-LTS for audio conversion video_editor : ^2.1.0

  21 août 2024, par Rafael Dos Santos Coladelo

  I'm already using in my code : ffmpeg_kit_flutter_audio-5.1.0-LTS
for audio conversion, when you put the
video_editor : ^2.1.0
general the error, is there any way to solve it ?

  


  FAILURE : Build failed with an exception.

  


  

  • What went wrong :
Execution failed for task ':app:checkDebugDuplicateClasses'.

  


  


  


  A failure occurred while executing com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable
Duplicate class com.arthenica.ffmpegkit.Abi found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.AbiDetect found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.AbstractSession found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.AsyncFFmpegExecuteTask found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.AsyncFFprobeExecuteTask found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.AsyncGetMediaInformationTask found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.BuildConfig found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.CameraSupport found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.Chapter found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.FFmpegKit found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.FFmpegKitConfig found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.FFmpegKitConfig$1 found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.FFmpegKitConfig$2 found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.FFmpegKitConfig$SAFProtocolUrl found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.FFmpegSession found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.FFmpegSessionCompleteCallback found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.FFprobeKit found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.FFprobeSession found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.FFprobeSessionCompleteCallback found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.Level found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.Log found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.LogCallback found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.LogRedirectionStrategy found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.MediaInformation found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.MediaInformationJsonParser found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.MediaInformationSession found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.MediaInformationSessionCompleteCallback found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.NativeLoader found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.Packages found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.ReturnCode found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.Session found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.SessionState found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.Signal found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.Statistics found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.StatisticsCallback found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)
Duplicate class com.arthenica.ffmpegkit.StreamInformation found in modules jetified-ffmpeg-kit-audio-5.1.LTS-runtime (com.arthenica:ffmpeg-kit-audio:5.1.LTS) and jetified-ffmpeg-kit-min-gpl-5.1-runtime (com.arthenica:ffmpeg-kit-min-gpl:5.1)

  


  


   Go to the documentation to learn how to <a href="http://stackoverflow.com/feeds/tag/d.android.com/r/tools/classpath-sync-errors">Fix dependency resolution errors</a>.&#xA;

  


  

  • Try :

  


  


  


  Run with —stacktrace option to get the stack trace.
Run with —info or —debug option to get more log output.
Run with —scan to get full insights.

  


  


  

  • Get more help at https://help.gradle.org

  


  


  BUILD FAILED in 6s
Exception : Gradle task assembleDebug failed with exit code 1

  


  


• Convert Webm to MP4 on the fly using ffmpeg for a Telegram bot using Typescript

  23 novembre 2022, par Hex

  I'm trying to make a very primitive telegram bot that get's a json and uploads the urls that are in the json to telegram.

  


  The problem is that there are urls that point to webm files I tried to see if there is a simple way to do this and I found this : https://www.npmjs.com/package/webm-to-mp4
but it doesn't seem to work sadly, it runs into this error : "

  


  


  


  throw new Error(`Conversion error: ${stderr}`)
                                ^

Error: Conversion error: ffmpeg version n4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with emcc (Emscripten gcc/clang-like replacement) 1.39.11
  configuration: --cc=emcc --ranlib=emranlib --enable-cross-compile --target-os=none --arch=x86 --disable-runtime-cpudetect --disable-asm --disable-fast-unaligned --disable-pthreads --disable-w32threads --disable-os2threads --disable-debug --disable-stripping --disable-safe-bitstream-reader --disable-all --enable-ffmpeg --enable-avcodec --enable-avformat --enable-avfilter --enable-swresample --enable-swscale --disable-network --disable-d3d11va --disable-dxva2 --disable-vaapi --disable-vdpau --enable-decoder=vp8 --enable-decoder=h264 --enable-decoder=vorbis --enable-decoder=opus --enable-decoder=mp3 --enable-decoder=aac --enable-decoder=pcm_s16le --enable-decoder=mjpeg --enable-decoder=png --enable-demuxer=matroska --enable-demuxer=ogg --enable-demuxer=mov --enable-demuxer=mp3 --enable-demuxer=wav --enable-demuxer=image2 --enable-demuxer=concat --enable-protocol=file --enable-filter=aresample --enable-filter=scale --enable-filter=crop --enable-filter=overlay --enable-filter=hstack --enable-filter=vstack --disable-bzlib --disable-iconv --disable-libxcb --disable-lzma --disable-sdl2 --disable-securetransport --disable-xlib --enable-zlib --enable-encoder=libx264 --enable-encoder=libmp3lame --enable-encoder=aac --enable-muxer=mp4 --enable-muxer=mp3 --enable-muxer=null --enable-gpl --enable-libmp3lame --enable-libx264 --extra-cflags='-s USE_ZLIB=1 -I../lame/dist/include' --extra-ldflags=-L../lame/dist/lib
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
input.webm: Invalid data found when processing input
exception thrown: Error: Conversion error: ffmpeg version n4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with emcc (Emscripten gcc/clang-like replacement) 1.39.11
  configuration: --cc=emcc --ranlib=emranlib --enable-cross-compile --target-os=none --arch=x86 --disable-runtime-cpudetect --disable-asm --disable-fast-unaligned --disable-pthreads --disable-w32threads --disable-os2threads --disable-debug --disable-stripping --disable-safe-bitstream-reader --disable-all --enable-ffmpeg --enable-avcodec --enable-avformat --enable-avfilter --enable-swresample --enable-swscale --disable-network --disable-d3d11va --disable-dxva2 --disable-vaapi --disable-vdpau --enable-decoder=vp8 --enable-decoder=h264 --enable-decoder=vorbis --enable-decoder=opus --enable-decoder=mp3 --enable-decoder=aac --enable-decoder=pcm_s16le --enable-decoder=mjpeg --enable-decoder=png --enable-demuxer=matroska --enable-demuxer=ogg --enable-demuxer=mov --enable-demuxer=mp3 --enable-demuxer=wav --enable-demuxer=image2 --enable-demuxer=concat --enable-protocol=file --enable-filter=aresample --enable-filter=scale --enable-filter=crop --enable-filter=overlay --enable-filter=hstack --enable-filter=vstack --disable-bzlib --disable-iconv --disable-libxcb --disable-lzma --disable-sdl2 --disable-securetransport --disable-xlib --enable-zlib --enable-encoder=libx264 --enable-encoder=libmp3lame --enable-encoder=aac --enable-muxer=mp4 --enable-muxer=mp3 --enable-muxer=null --enable-gpl --enable-libmp3lame --enable-libx264 --extra-cflags='-s USE_ZLIB=1 -I../lame/dist/include' --extra-ldflags=-L../lame/dist/lib
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
input.webm: Invalid data found when processing input
,Error: Conversion error: ffmpeg version n4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with emcc (Emscripten gcc/clang-like replacement) 1.39.11
  configuration: --cc=emcc --ranlib=emranlib --enable-cross-compile --target-os=none --arch=x86 --disable-runtime-cpudetect --disable-asm --disable-fast-unaligned --disable-pthreads --disable-w32threads --disable-os2threads --disable-debug --disable-stripping --disable-safe-bitstream-reader --disable-all --enable-ffmpeg --enable-avcodec --enable-avformat --enable-avfilter --enable-swresample --enable-swscale --disable-network --disable-d3d11va --disable-dxva2 --disable-vaapi --disable-vdpau --enable-decoder=vp8 --enable-decoder=h264 --enable-decoder=vorbis --enable-decoder=opus --enable-decoder=mp3 --enable-decoder=aac --enable-decoder=pcm_s16le --enable-decoder=mjpeg --enable-decoder=png --enable-demuxer=matroska --enable-demuxer=ogg --enable-demuxer=mov --enable-demuxer=mp3 --enable-demuxer=wav --enable-demuxer=image2 --enable-demuxer=concat --enable-protocol=file --enable-filter=aresample --enable-filter=scale --enable-filter=crop --enable-filter=overlay --enable-filter=hstack --enable-filter=vstack --disable-bzlib --disable-iconv --disable-libxcb --disable-lzma --disable-sdl2 --disable-securetransport --disable-xlib --enable-zlib --enable-encoder=libx264 --enable-encoder=libmp3lame --enable-encoder=aac --enable-muxer=mp4 --enable-muxer=mp3 --enable-muxer=null --enable-gpl --enable-libmp3lame --enable-libx264 --extra-cflags='-s USE_ZLIB=1 -I../lame/dist/include' --extra-ldflags=-L../lame/dist/lib
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
input.webm: Invalid data found when processing input


  


  I'm not sure what is causing it, my guess is that the webm-to.mp4 package was updated 2 years ago and something broke in the meantime.

  


  Is there a better way to do this then downloading the webm converting it and then sending it up to telegram ? If not how could I do the conversion using just ffmpeg ?

  


  Here is my current code :

  


  import { Telegram, MediaSource, HTML } from 'puregram'
import { HearManager } from '@puregram/hear'
import { createReadStream } from 'fs'
import postsJson from './posts.json';
const { promises: fs } = require("fs");
const webmToMp4 = require("webm-to-mp4");

const telegram = new Telegram({
  token: '********:AAEzriis6zNNjEQuw0BxF9M2RPA9V4lEqLA'
})
const hearManager = new HearManager()

telegram.updates.startPolling()
  .then(() => console.log(`started polling @${telegram.bot.username}`))
  .catch(console.error)

telegram.updates.on('message', hearManager.middleware)

var posts = postsJson;

telegram.updates.on('message', (context) => {
    posts.forEach( async data => {
      console.error(data.ext);
        if(data.ext == "jpg" || data.ext == "png"){
          context.sendPhoto(MediaSource.url(data.image), { caption: data.content  } );
          delay(1000);
        }
        if(data.ext == "gif"){
          context.sendAnimation(MediaSource.url(data.image), { caption: data.content  } );
          delay(1000);
        }
        if(data.ext == "webm"){
          //context.sendDocument(MediaSource.url(data.image), { caption: data.content  } );
          delay(1000);
        }
        delay(1000);
    })
})
fs.writeFile("file.mp4", Buffer.from(webmToMp4( fs.readFile("./file.webm"))));

function delay(ms: number) {
  return new Promise( resolve => setTimeout(resolve, ms) ); //This does not work either
}


  


  I wish everoyne a nice day !

  


• Stream image from Android with FFMPEG

  9 février 2023, par xnok

  I'm currently receiving images from an external source as byte array and I would like to send it as raw video format via ffmpeg to a stream URL, where I have a RTSP server that receives RTSP streams (a similar unanswered question). However, I haven't worked with FFMPEG in Java, so i can't find an example on how to do it. I have a callback that copies the image bytes to a byte array as follows :

  


          public class MainActivity extends Activity {
            final String rtmp_url = "rtmp://192.168.0.12:1935/live/test";
            private int PREVIEW_WIDTH = 384;
            private int PREVIEW_HEIGHT = 292;
            private String TAG = "MainActivity";
            String ffmpeg = Loader.load(org.bytedeco.ffmpeg.ffmpeg.class);
            final String command[] = {ffmpeg,
                            "-y",  //Add "-re" for simulated readtime streaming.
                            "-f", "rawvideo",
                            "-vcodec", "rawvideo",
                            "-pix_fmt", "bgr24",
                            "-s", (Integer.toString(PREVIEW_WIDTH) + "x" + Integer.toString(PREVIEW_HEIGHT)),
                            "-r", "10",
                            "-i", "pipe:",
                            "-c:v", "libx264",
                            "-pix_fmt", "yuv420p",
                            "-preset", "ultrafast",
                            "-f", "flv",
                            rtmp_url};
            
      private UVCCamera mUVCCamera;

public void handleStartPreview(Object surface) throws InterruptedException, IOException {
    Log.e(TAG, "handleStartPreview:mUVCCamera" + mUVCCamera + " mIsPreviewing:");
    if ((mUVCCamera == null)) return;
    Log.e(TAG, "handleStartPreview2 ");
    try {
        mUVCCamera.setPreviewSize(mWidth, mHeight, 1, 26, 0, UVCCamera.DEFAULT_BANDWIDTH, 0);
        Log.e(TAG, "handleStartPreview3 mWidth: " + mWidth + "mHeight:" + mHeight);
    } catch (IllegalArgumentException e) {
        try {
            // fallback to YUV mode
            mUVCCamera.setPreviewSize(mWidth, mHeight, 1, 26, UVCCamera.DEFAULT_PREVIEW_MODE, UVCCamera.DEFAULT_BANDWIDTH, 0);
            Log.e(TAG, "handleStartPreview4");
        } catch (IllegalArgumentException e1) {
            callOnError(e1);
            return;
        }
    }
    Log.e(TAG, "handleStartPreview: startPreview1");
    int result = mUVCCamera.startPreview();
    mUVCCamera.setFrameCallback(mIFrameCallback, UVCCamera.PIXEL_FORMAT_RGBX);
    mUVCCamera.startCapture();
    Toast.makeText(MainActivity.this,"Camera Started",Toast.LENGTH_SHORT).show();
    ProcessBuilder pb = new ProcessBuilder(command);
    pb.redirectErrorStream(true);
    Process process = pb.start();
    BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
    OutputStream writer = process.getOutputStream();
    byte img[] = new byte[192*108*3];
    for (int i = 0; i < 10; i++)
    {
        for (int y = 0; y < 108; y++)
        {
            for (int x = 0; x < 192; x++)
            {
                byte r = (byte)((x * y + i) % 255);
                byte g = (byte)((x * y + i*10) % 255);
                byte b = (byte)((x * y + i*20) % 255);
                img[(y*192 + x)*3] = b;
                img[(y*192 + x)*3+1] = g;
                img[(y*192 + x)*3+2] = r;
            }
        }

        writer.write(img);
    }

    writer.close();
    String line;
    while ((line = reader.readLine()) != null)
    {
        System.out.println(line);
    }

    process.waitFor();
}
public static void buildRawFrame(Mat img, int i)
{
    int p = img.cols() / 60;
    img.setTo(new Scalar(60, 60, 60));
    String text = Integer.toString(i+1);
    int font = Imgproc.FONT_HERSHEY_SIMPLEX;
    Point pos = new Point(img.cols()/2-p*10*(text.length()), img.rows()/2+p*10);
    Imgproc.putText(img, text, pos, font, p, new Scalar(255, 30, 30), p*2);  //Blue number
}


  


  Additionally : Android Camera Capture using FFmpeg

  


  uses ffmpeg to capture frame by frame from native android camera and instead of pushing it via RTMP, they used to generate a video file as output. Although how the image was passed via ffmpeg was not informed.

  


  frameData is my byte array and I'd like to know how can I write the necessary ffmpeg commands using ProcessBuilder to send an image via RTSP using ffmpeg for a given URL.

  


  An example of what I am trying to do, In Python 3 I could easily do it by doing :

  


  import cv2
import numpy as np
import socket
import sys
import pickle
import struct
import subprocess

fps = 25
width = 224
height = 224
rtmp_url = 'rtmp://192.168.0.13:1935/live/test'
    
    
    
    command = ['ffmpeg',
               '-y',
               '-f', 'rawvideo',
               '-vcodec', 'rawvideo',
               '-pix_fmt', 'bgr24',
               '-s', "{}x{}".format(width, height),
               '-r', str(fps),
               '-i', '-',
               '-c:v', 'libx264',
               '-pix_fmt', 'yuv420p',
               '-preset', 'ultrafast',
               '-f', 'flv',
               rtmp_url]
    
    p = subprocess.Popen(command, stdin=subprocess.PIPE)
    
    while(True):
        frame = np.random.randint([255], size=(224, 224, 3))
        frame = frame.astype(np.uint8)
        p.stdin.write(frame.tobytes())


  


  I would like to do the same thing in Android

  


  Update : I can reproduce @Rotem 's answer on Netbeans although, in Android I am getting NullPointer exception error when trying to execute pb.start().

  


      Process: com.infiRay.XthermMini, PID: 32089
    java.lang.NullPointerException
        at java.lang.ProcessBuilder.start(ProcessBuilder.java:1012)
        at com.infiRay.XthermMini.MainActivity.handleStartPreview(MainActivity.java:512)
        at com.infiRay.XthermMini.MainActivity.startPreview(MainActivity.java:563)
        at com.infiRay.XthermMini.MainActivity.access$1000(MainActivity.java:49)
        at com.infiRay.XthermMini.MainActivity$3.onConnect(MainActivity.java:316)
        at com.serenegiant.usb.USBMonitor$3.run(USBMonitor.java:620)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loopOnce(Looper.java:226)
        at android.os.Looper.loop(Looper.java:313)
        at android.os.HandlerThread.run(HandlerThread.java:67)
2022-06-02 11:47:20.300 32089-1049/com.infiRay.XthermMini E/libUVCCamera: [1049*UVCPreviewIR.cpp:505:uvc_preview_frame_callback]:receive err data
2022-06-02 11:47:20.304 32089-1049/com.infiRay.XthermMini E/libUVCCamera: [1049*UVCPreviewIR.cpp:505:uvc_preview_frame_callback]:receive err data
2022-06-02 11:47:20.304 32089-1049/com.infiRay.XthermMini E/libUVCCamera: [1049*UVCPreviewIR.cpp:505:uvc_preview_frame_callback]:receive err data
2022-06-02 11:47:20.308 32089-1049/com.infiRay.XthermMini E/libUVCCamera: [1049*UVCPreviewIR.cpp:505:uvc_preview_frame_callback]:receive err data
2022-06-02 11:47:20.312 32089-32089/com.infiRay.XthermMini E/MainActivity: onPause:
2022-06-02 11:47:20.314 32089-32581/com.infiRay.XthermMini I/Process: Sending signal. PID: 32089 SIG: 9