Recherche avancée

Sur d’autres sites (8439)

• 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 ?

  


• How to send a camera capture frame to YouTube streaming using ffmpeg

  2 mars 2024, par 유혜진

  import subprocess 
import cv2

# YouTube streaming settings
YOUTUBE_URL = "rtmp://a.rtmp.youtube.com/live2/"
KEY = "..."

# OpenCV camera setup
cap = cv2.VideoCapture(0)
cap.set(cv2.CAP_PROP_FRAME_WIDTH, 640)
cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 480)

# FFmpeg command for streaming
command = [r"C:\utility\ffmpeg\ffmpeg-2024-02-22-git-76b2bb96b4-full_build\ffmpeg-2024-02-22-git-76b2bb96b4-full_build\bin\ffmpeg.exe",
            '-f', 'rawvideo',
            '-pix_fmt', 'bgr24',
            '-s', '640x480',
            '-i', '-',
            '-ar', '44100',
            '-ac', '2',
            '-acodec', 'pcm_s16le',
            '-f', 's16le',
            '-ac', '2',
            '-i', 'NUL',   
            '-acodec', 'aac',
            '-ab', '128k',
            '-strict', 'experimental',
            '-vcodec', 'h264',
            '-pix_fmt', 'yuv420p',
            '-g', '50',
            '-vb', '1000k',
            '-profile:v', 'baseline',
            '-preset', 'ultrafast',
            '-r', '30',
            '-f', 'flv', 
            f"{YOUTUBE_URL}/{KEY}",]

# Open a subprocess with FFmpeg
pipe = subprocess.Popen(command, stdin=subprocess.PIPE)

while True:
    # Read a frame from the camera
    ret, frame = cap.read()
    if not ret:
        break

    # Display the frame
    cv2.imshow('Frame', frame)
    cv2.waitKey(1)  # Wait for 1ms

    # Send the frame through the pipe for streaming
    pipe.stdin.write(frame.tobytes())

    # Check for 'q' key press to stop streaming
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

# Release resources
cap.release()
cv2.destroyAllWindows()


  


  I'm trying to implement capturing the camera screen using opencv and transmitting this frame to the YouTube streaming broadcast via ffmpeg. YouTube streaming does start when I run this code. However, it appears to be a black screen, not a camera screen. I don't see what the problem is.

  


  I didn't even start streaming at first, but I changed the command option to various things, and when I ran the code, I succeeded in starting streaming. There are many references to transmitting mp4, but there are not many references to transmitting real-time capture. I'm going to process the camera screen using opencv and then send it to streaming. I don't know what the problem is. Please help me.

  


• FFmpeg : Specify pixel format for STD_IN input

  27 février 2024, par ShadowMagic896

  This is the current command :

  


  ffmpeg -i pipe:0 -pix_fmt yuv420p -f mp4 -vf "transpose=1" -f matroska pipe:1

  


  Essentially, it takes an MP4 file, rotates it 90 degrees, and converts it back to mtk and outputs it to STD_OUT.

  


  This is the error :

  


  WARNING:root:[mov,mp4,m4a,3gp,3g2,mj2 @ 000001ff9979dd00] stream 0, offset 0x50: partial file
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001ff9979dd00] Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none, 170x144, 32 kb/s): unspecified pixel format
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'pipe:0':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp41isom
    creation_time   : 2024-02-26T20:53:03.000000Z
  Duration: 00:00:03.88, start: 0.000000, bitrate: N/A
  Stream #0:0[0x1](und): Video: h264 (avc1 / 0x31637661), none, 170x144, 32 kb/s, 30 fps, 30 tbr, 30k tbn (default)
      Metadata:
        creation_time   : 2024-02-26T20:53:03.000000Z
        handler_name    : VideoHandler
        vendor_id       : [0][0][0][0]
        encoder         : AVC Coding
  Stream #0:1[0x2](und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s (default)
      Metadata:
        creation_time   : 2024-02-26T20:53:03.000000Z
        handler_name    : SoundHandler
        vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> vorbis (libvorbis))
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001ff9979dd00] stream 0, offset 0x50: partial file
[in#0/mov,mp4,m4a,3gp,3g2,mj2 @ 000001ff9978b080] Error during demuxing: Invalid data found when processing input
Cannot determine format of input 0:0 after EOF
[vf#0:0 @ 000001ff997d6040] Task finished with error code: -1094995529 (Invalid data found when processing input)
[vf#0:0 @ 000001ff997d6040] Terminating thread with return code -1094995529 (Invalid data found when processing input)
[aost#0:1/libvorbis @ 000001ff99cd1780] No filtered frames for output stream, trying to initialize anyway.
[vost#0:0/libx264 @ 000001ff997d4fc0] Could not open encoder before EOF
[vost#0:0/libx264 @ 000001ff997d4fc0] Task finished with error code: -22 (Invalid argument)
[vost#0:0/libx264 @ 000001ff997d4fc0] Terminating thread with return code -22 (Invalid argument)
[out#0/matroska @ 000001ff997a6180] Nothing was written into output file, because at least one of its streams received no packets.
frame=    0 fps=0.0 q=0.0 Lsize=       0KiB time=N/A bitrate=N/A speed=N/A    
Conversion failed!


  


  I am running this via Python, this is the script :

  


      async def send_proc_pipe(self) -> bytes:

        command = f"ffmpeg -hide_banner -loglevel error -i pipe:0 -pix_fmt yuv420p -f mp4 -vf \"transpose=1\" -f matroska pipe:1"

        proc = await asyncio.create_subprocess_shell(
            cmd=command,
            stdin=asyncio.subprocess.PIPE,
            stdout=asyncio.subprocess.PIPE,
            stderr=asyncio.subprocess.PIPE
        )
        
        std_in = self.blob

        c_out, c_err = await proc.communicate(std_in)
        if c_err:
            logging.warning(c_err.decode("utf-8"))

        return c_out


  


  I'm not really use what else to try here. I've re-ordered the parameters and tried different pixel formats with no success.