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  • Flutter ffmpeg_kit_flutter_new can't build Android app in any version

    13 mai, par user31929

    I can't build my project on Android ( on Ios it works and the project itself without ffmpeg_kit_flutter_new builds without problems )
This is the error i obtain :

    


    /GeneratedPluginRegistrant.java:51: error: cannot find symbol
      com.antonkarpenko.ffmpegkit.MainActivity.registerWith(shimPluginRegistry.registrarFor("com.antonkarpenko.ffmpegkit.MainActivity"));
                                 ^
  symbol:   class MainActivity
  location: package com.antonkarpenko.ffmpegkit


    


    This is my flutter doctor :

    


    [✓] Flutter (Channel stable, 3.19.4, on macOS 15.4.1 24E263 darwin-x64, locale it-IT)
    • Flutter version 3.19.4 on channel stable at ….
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 68bfaea224 (1 year, 2 months ago), 2024-03-20 15:36:31 -0700
    • Engine revision a5c24f538d
    • Dart version 3.3.2
    • DevTools version 2.31.1

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at …..
    • Platform android-35, build-tools 34.0.0
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 17.0.7+0-17.0.7b1000.6-10550314)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 16.3)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 16E140
    • CocoaPods version 1.16.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2023.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 17.0.7+0-17.0.7b1000.6-10550314)

[✓] VS Code (version 1.99.3)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.110.0

[✓] Connected device (5 available)
    • SM A135F (mobile)              • RF8T40TMS6Z               • android-arm    • Android 12 (API 31)
    • cri SE 128 (mobile)      • 00008030-001268303E38402E • ios            • iOS 18.4.1 22E252
    • iPhone di WacMini (mobile) • 00008030-00121D543CE8802E • ios            • iOS 18.4.1 22E252
    • macOS (desktop)                • macos                     • darwin-x64     • macOS 15.4.1 24E263 darwin-x64
    • Chrome (web)                   • chrome                    • web-javascript • Google Chrome 136.0.7103.93

[✓] Network resources
    • All expected network resources are available.


    


    My android/app/build.gradle

    


    def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader('UTF-8') { reader ->
        localProperties.load(reader)
    }
}

def keystoreProperties = new Properties()
def keystorePropertiesFile = rootProject.file('key.properties')
if (keystorePropertiesFile.exists()) {
    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
}

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
    flutterVersionCode = '1'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    flutterVersionName = '1.0'
}

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
apply plugin: 'com.google.gms.google-services'
apply plugin: 'com.google.firebase.crashlytics'
apply plugin: 'org.jetbrains.kotlin.android'


android {

    compileSdkVersion 35

    namespace = "com.app.app"
    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }

    defaultConfig {
        applicationId "com.appid.appid"
        minSdkVersion 24
        targetSdkVersion 35
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
       
        // insert this line of code in order to manage correct build abi configuration only on supported devices not supported tablet device emulator
       /* ndk {
            abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86_64'
        }*/
    }

    signingConfigs {
        release {
            keyAlias keystoreProperties['keyAlias']
            keyPassword keystoreProperties['keyPassword']
            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
            storePassword keystoreProperties['storePassword']
        }
    }

    buildTypes {
        debug {
            debuggable true
        }

        release {
            signingConfig signingConfigs.release
            debuggable false
            shrinkResources true
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

}

flutter {
    source '../..'
}

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib:1.9.24"
}


    


    My android/build.gradle

    


    buildscript {
    ext.kotlin_version = '1.9.24'
    repositories {
        google()
        mavenCentral()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:8.4.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath 'com.google.gms:google-services:4.3.14'
        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.7.1'
    }
}

allprojects {
    repositories {
        google()
        mavenCentral()
        jcenter()
    }

    
    subprojects {
        tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile) {
            kotlinOptions.jvmTarget = "1.8"
        }
        afterEvaluate { project ->
            if (project.hasProperty('android')) {
                project.android {
                    if (namespace == null) {
                        namespace project.group
                    }
                }
            }
        }
    }
    
}


ext {
    flutterFFmpegPackage = "min-gpl-lts"
}


rootProject.buildDir = '../build'
subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
    project.evaluationDependsOn(':app')
}

tasks.register("clean", Delete) {
    delete rootProject.buildDir
}


    


    My gradle.wrapper.properties

    


    distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-all.zip


    


    What i have already tried :

    


      

    • flutter clean/flutter pub get

      • 


    • remove .gradle folder/flutter clean/flutter pub get

      • 


    • remove GeneratedPluginRegistrant.java file then remove .gradle/flutter clean/flutter pub get

      • 


    


    I have this issue in every version of the plugin. There is something wrong in my configurations or maybe this is a plugin issue ?

    


  • Multicast video stream from Dahua IP surveillance camera - ffmpeg etc [closed]

    23 mai, par Jaroslav Mazurak

    I have a Dahua IP surveillance camera and want to get the video via a multicast stream.

    


    In the camera settings, I enabled Multicast streaming, IP 239.240.1.2, and port 40000 (the default). The RTSP port is 554 (the default).

    


    Neither VLC 3.0.21 nor ffmpeg 7.1.1 work when I try to use multicast. Both of them work when I use a unicast. OS is Windows 11 x64. Both applications are allowed in the Windows firewall (any protocol, all networks ; same result if the firewall is disabled completely). I have Wireshark installed, and I see that when a client requests the stream via RTSP, the multicast traffic from the camera is present ; ffmpeg determines the stream but doesn't capture any video, and the output file is empty (it contains only the header and no video). When I use unicast, the correct output video file is saved.

    


    I have no idea what I'm doing wrong, and why ffmpeg (and VLC) doesn't capture anything in the multicast mode.

    


    Here are the ffmpeg logs for multicast and unicast modes.

    


    Multicast :

    


    ffmpeg -fflags nobuffer -flags low_delay -timeout 10M -stats -rtsp_transport udp_multicast -i "rtsp://user:password@10.10.10.10:554/cam/realmonitor?channel=1&subtype=0&unicast=false" -acodec copy -vcodec copy -y output.mkv

ffmpeg version 7.1.1-full_build-www.gyan.dev Copyright (c) 2000-2025 the FFmpeg developers
  built with gcc 14.2.0 (Rev1, Built by MSYS2 projffmpeg -fflags nobuffer -flags low_delay -timeout 10M -stats -i "rtsp://user:password@10.10.10.10:554/cam/realmonitor?channel=1&subtype=0" -acodec copy -vcodec copy -y output.mkv

ffmpeg version 7.1.1-full_build-www.gyan.dev Copyright (c) 2000-2025 the FFmpeg developers
  built with gcc 14.2.0 (Rev1, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-lcms2 --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-libdvdnav --enable-libdvdread --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libopenjpeg --enable-libquirc --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-libqrencode --enable-librav1e --enable-libsvtav1 --enable-libvvenc --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-liblc3 --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.101 / 61. 19.101
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
Input #0, rtsp, from 'rtsp://user:password@10.10.10.10:554/cam/realmonitor?channel=1&subtype=0':
  Metadata:
    title           : Media Server
  Duration: N/A, start: 0.000000, bitrate: N/A
  Stream #0:0: Video: hevc (Main), yuv420p(tv), 2560x1440, 25 fps, 25 tbr, 90k tbn
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Output #0, matroska, to 'output.mkv':
  Metadata:
    title           : Media Server
    encoder         : Lavf61.7.100
  Stream #0:0: Video: hevc (Main), yuv420p(tv), 2560x1440, q=2-31, 25 fps, 25 tbr, 1k tbn
Press [q] to stop, [?] for help
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=00:00:01.32 bitrate=   0.0kbits/s speed= 2.6x    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=00:00:01.84 bitrate=   0.0kbits/s speed=1.81x    
frame=   10 fps=6.5 q=-1.0 size=       1KiB time=00:00:02.36 bitrate=   2.2kbits/s speed=1.53x    
frame=   23 fps= 11 q=-1.0 size=       1KiB time=00:00:02.88 bitrate=   1.8kbits/s speed= 1.4x    
frame=   36 fps= 14 q=-1.0 size=       1KiB time=00:00:03.40 bitrate=   1.5kbits/s speed=1.33x    
frame=   49 fps= 16 q=-1.0 size=       1KiB time=00:00:03.92 bitrate=   1.3kbits/s speed=1.27x    
frame=   62 fps= 17 q=-1.0 size=     256KiB time=00:00:04.44 bitrate= 472.3kbits/s speed=1.23x    
frame=   75 fps= 18 q=-1.0 size=     256KiB time=00:00:04.96 bitrate= 422.8kbits/s speed= 1.2x    
frame=   88 fps= 19 q=-1.0 size=     256KiB time=00:00:05.48 bitrate= 382.7kbits/s speed=1.18x    
frame=  100 fps= 19 q=-1.0 size=     256KiB time=00:00:05.96 bitrate= 351.9kbits/s speed=1.16x    
frame=  113 fps= 20 q=-1.0 size=     768KiB time=00:00:06.48 bitrate= 970.9kbits/s speed=1.14x    
frame=  126 fps= 20 q=-1.0 size=     768KiB time=00:00:07.00 bitrate= 898.8kbits/s speed=1.13x    
frame=  139 fps= 21 q=-1.0 size=     768KiB time=00:00:07.52 bitrate= 836.6kbits/s speed=1.12x    
frame=  152 fps= 21 q=-1.0 size=    1280KiB time=00:00:08.04 bitrate=1304.2kbits/s speed=1.11x    
frame=  165 fps= 21 q=-1.0 size=    1280KiB time=00:00:08.56 bitrate=1225.0kbits/s speed=1.11x    
frame=  178 fps= 22 q=-1.0 size=    1280KiB time=00:00:09.08 bitrate=1154.8kbits/s speed= 1.1x    
frame=  191 fps= 22 q=-1.0 size=    1280KiB time=00:00:09.60 bitrate=1092.3kbits/s speed= 1.1x    
frame=  203 fps= 22 q=-1.0 size=    1792KiB time=00:00:10.08 bitrate=1456.4kbits/s speed=1.09x    
frame=  217 fps= 22 q=-1.0 size=    1792KiB time=00:00:10.64 bitrate=1379.7kbits/s speed=1.09x    


[q] command received. Exiting.

[out#0/matroska @ 000001e0329cad80] video:2377KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.100389%
frame=  230 fps= 22 q=-1.0 Lsize=    2380KiB time=00:00:11.16 bitrate=1746.9kbits/s speed=1.08x    
ect)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-lcms2 --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-libdvdnav --enable-libdvdread --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libopenjpeg --enable-libquirc --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-libqrencode --enable-librav1e --enable-libsvtav1 --enable-libvvenc --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-liblc3 --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.101 / 61. 19.101
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
Input #0, rtsp, from 'rtsp://user:password@10.10.10.10:554/cam/realmonitor?channel=1&subtype=0&unicast=false':
  Metadata:
    title           : Media Server
  Duration: N/A, bitrate: N/A
  Stream #0:0: Video: hevc (Main), yuv420p(tv), 2560x1440, 25 tbr, 90k tbn
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Output #0, matroska, to 'output.mkv':
  Metadata:
    title           : Media Server
    encoder         : Lavf61.7.100
  Stream #0:0: Video: hevc (Main), yuv420p(tv), 2560x1440, q=2-31, 25 tbr, 1k tbn
Press [q] to stop, [?] for help
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
[in#0/rtsp @ 0000014b1a80a580] Error during demuxing: Error number -138 occurred
[out#0/matroska @ 0000014b1a7ee700] video:0KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: unknown
[out#0/matroska @ 0000014b1a7ee700] Output file is empty, nothing was encoded
frame=    0 fps=0.0 q=-1.0 Lsize=       1KiB time=N/A bitrate=N/A speed=N/A    


    


    Unicast :

    


    ffmpeg -fflags nobuffer -flags low_delay -timeout 10M -stats -i "rtsp://user:password@10.10.10.10:554/cam/realmonitor?channel=1&subtype=0" -acodec copy -vcodec copy -y output.mkv

ffmpeg version 7.1.1-full_build-www.gyan.dev Copyright (c) 2000-2025 the FFmpeg developers
  built with gcc 14.2.0 (Rev1, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-lcms2 --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-libdvdnav --enable-libdvdread --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libopenjpeg --enable-libquirc --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-libqrencode --enable-librav1e --enable-libsvtav1 --enable-libvvenc --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-liblc3 --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.101 / 61. 19.101
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
Input #0, rtsp, from 'rtsp://user:password@10.10.10.10:554/cam/realmonitor?channel=1&subtype=0':
  Metadata:
    title           : Media Server
  Duration: N/A, start: 0.000000, bitrate: N/A
  Stream #0:0: Video: hevc (Main), yuv420p(tv), 2560x1440, 25 fps, 25 tbr, 90k tbn
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Output #0, matroska, to 'output.mkv':
  Metadata:
    title           : Media Server
    encoder         : Lavf61.7.100
  Stream #0:0: Video: hevc (Main), yuv420p(tv), 2560x1440, q=2-31, 25 fps, 25 tbr, 1k tbn
Press [q] to stop, [?] for help
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=00:00:01.32 bitrate=   0.0kbits/s speed= 2.6x    
frame=    0 fps=0.0 q=-1.0 size=       0KiB time=00:00:01.84 bitrate=   0.0kbits/s speed=1.81x    
frame=   10 fps=6.5 q=-1.0 size=       1KiB time=00:00:02.36 bitrate=   2.2kbits/s speed=1.53x    
frame=   23 fps= 11 q=-1.0 size=       1KiB time=00:00:02.88 bitrate=   1.8kbits/s speed= 1.4x    
frame=   36 fps= 14 q=-1.0 size=       1KiB time=00:00:03.40 bitrate=   1.5kbits/s speed=1.33x    
frame=   49 fps= 16 q=-1.0 size=       1KiB time=00:00:03.92 bitrate=   1.3kbits/s speed=1.27x    
frame=   62 fps= 17 q=-1.0 size=     256KiB time=00:00:04.44 bitrate= 472.3kbits/s speed=1.23x    
frame=   75 fps= 18 q=-1.0 size=     256KiB time=00:00:04.96 bitrate= 422.8kbits/s speed= 1.2x    
frame=   88 fps= 19 q=-1.0 size=     256KiB time=00:00:05.48 bitrate= 382.7kbits/s speed=1.18x    
frame=  100 fps= 19 q=-1.0 size=     256KiB time=00:00:05.96 bitrate= 351.9kbits/s speed=1.16x    
frame=  113 fps= 20 q=-1.0 size=     768KiB time=00:00:06.48 bitrate= 970.9kbits/s speed=1.14x    
frame=  126 fps= 20 q=-1.0 size=     768KiB time=00:00:07.00 bitrate= 898.8kbits/s speed=1.13x    
frame=  139 fps= 21 q=-1.0 size=     768KiB time=00:00:07.52 bitrate= 836.6kbits/s speed=1.12x    
frame=  152 fps= 21 q=-1.0 size=    1280KiB time=00:00:08.04 bitrate=1304.2kbits/s speed=1.11x    
frame=  165 fps= 21 q=-1.0 size=    1280KiB time=00:00:08.56 bitrate=1225.0kbits/s speed=1.11x    
frame=  178 fps= 22 q=-1.0 size=    1280KiB time=00:00:09.08 bitrate=1154.8kbits/s speed= 1.1x    
frame=  191 fps= 22 q=-1.0 size=    1280KiB time=00:00:09.60 bitrate=1092.3kbits/s speed= 1.1x    
frame=  203 fps= 22 q=-1.0 size=    1792KiB time=00:00:10.08 bitrate=1456.4kbits/s speed=1.09x    
frame=  217 fps= 22 q=-1.0 size=    1792KiB time=00:00:10.64 bitrate=1379.7kbits/s speed=1.09x    


[q] command received. Exiting.

[out#0/matroska @ 000001e0329cad80] video:2377KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.100389%
frame=  230 fps= 22 q=-1.0 Lsize=    2380KiB time=00:00:11.16 bitrate=1746.9kbits/s speed=1.08x    


    


  • Filter concat has an unconnected output while Video concatenation in ffmpeg wrapper in java

    28 février 2024, par Thor

    I am trying to stitch variable number of videos using ffmpeg wrapper.

    


    I have this code :

    


    private void videoStich(List<string> videoPaths){&#xA;        FFmpeg ffmpeg = null;&#xA;        FFprobe ffprobe=null;&#xA;        String stitchedOutputPath = outputFolder &#x2B; "/stitched_output.mp4";&#xA;&#xA;        try {&#xA;            ffmpeg = new FFmpeg();&#xA;            ffprobe = new FFprobe();&#xA;        } catch (IOException e) {&#xA;            throw new RuntimeException(e);&#xA;        }&#xA;&#xA;&#xA;        FFmpegBuilder builder = new FFmpegBuilder();&#xA;&#xA;        for (int i = 0; i &lt; videoPaths.size(); i&#x2B;&#x2B;) {&#xA;            String videoPath = videoPaths.get(i);&#xA;            builder.addInput(videoPath);&#xA;        }&#xA;&#xA;        // Add complex filter for concatenation&#xA;        StringBuilder complexFilter = new StringBuilder();&#xA;        for (int i = 0; i &lt; videoPaths.size(); i&#x2B;&#x2B;) {&#xA;            complexFilter.append("[").append(i).append(":v][").append(i).append(":a]");&#xA;//            if (i &lt; videoPaths.size() - 1) {&#xA;//                complexFilter.append("[");&#xA;//            }&#xA;        }&#xA;        complexFilter.append("concat=n=").append(videoPaths.size()).append(":v=1:a=1[v][a]");&#xA;&#xA;        builder.setComplexFilter(complexFilter.toString())&#xA;                .addOutput(stitchedOutputPath)&#xA;                .setFormat("mp4")&#xA;                .done();&#xA;&#xA;        FFmpegExecutor executor = new FFmpegExecutor(ffmpeg, ffprobe);&#xA;        executor.createJob(builder).run();&#xA;    }&#xA;</string>

    &#xA;

    but getting this error :

    &#xA;

    2024-02-28T16:30:53.033&#x2B;05:30  INFO 4711 --- [sample_project] [pool-3-thread-1] net.bramp.ffmpeg.RunProcessFunction      : ffmpeg -version&#xA;2024-02-28T16:30:53.126&#x2B;05:30  INFO 4711 --- [sample_project] [pool-3-thread-1] net.bramp.ffmpeg.RunProcessFunction      : ffmpeg -y -v error -i src/main/resources/cutted_videos/0_trimmed.mp4 -i src/main/resources/cutted_videos/1_trimmed.mp4 -filter_complex [0:v][0:a][1:v][1:a]concat=n=2:v=1:a=1[v][a] -f mp4 src/main/resources/cutted_videos/stitched_output.mp4&#xA;Filter concat has an unconnected output&#xA;java.lang.RuntimeException: java.io.IOException: ffmpeg returned non-zero exit status. Check stdout.&#xA;

    &#xA;

    I have been trying to fix this since a long time and didn't find any issue with the filter, it is looking good to me. Can anyone help me with it ?

    &#xA;

    EDIT :&#xA;I found that when I use this command in terminal :

    &#xA;

    ffmpeg -i in1.mp4 -i in2.mp4\&#xA;            -filter_complex "[0:v] [0:a] [1:v] [1:a] \&#xA;concat=n=2:v=1:a=1 [v] [a]" \&#xA;            -f mp4  output_test5.mp4&#xA;

    &#xA;

    it didn ;t work&#xA;while when i used this :

    &#xA;

    ffmpeg -i in1.mp4 -i in2.mp4\&#xA;            -filter_complex "[0:v] [0:a] [1:v] [1:a] \&#xA;concat=n=2:v=1:a=1 [v] [a]" \&#xA;            -f mp4 -map "[v]" -map "[a]" output_test4.mp4&#xA;

    &#xA;

    it worked. I think i need to add -map "[v]" -map "[a]" somehow in the code.

    &#xA;

    but when i try to add :&#xA;builder.setComplexFilter(complexFilter.toString())&#xA;.addOutput(stitchedOutputPath)&#xA;.setFormat("mp4")&#xA;.map()&#xA;.done() ;

    &#xA;

    or

    &#xA;

    builder.setComplexFilter(complexFilter.toString())&#xA;.addOutput(stitchedOutputPath)&#xA;.setFormat("mp4")&#xA;.setMap()&#xA;.done() ;

    &#xA;

    both .set() or setMap() doesn't exist. What to do, how to do ?

    &#xA;

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