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Autres articles (65)
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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
MediaSPIP Player : les contrôles
26 mai 2010, parLes contrôles à la souris du lecteur
En plus des actions au click sur les boutons visibles de l’interface du lecteur, il est également possible d’effectuer d’autres actions grâce à la souris : Click : en cliquant sur la vidéo ou sur le logo du son, celui ci se mettra en lecture ou en pause en fonction de son état actuel ; Molette (roulement) : en plaçant la souris sur l’espace utilisé par le média (hover), la molette de la souris n’exerce plus l’effet habituel de scroll de la page, mais diminue ou (...) -
Emballe Médias : Mettre en ligne simplement des documents
29 octobre 2010, parLe plugin emballe médias a été développé principalement pour la distribution mediaSPIP mais est également utilisé dans d’autres projets proches comme géodiversité par exemple. Plugins nécessaires et compatibles
Pour fonctionner ce plugin nécessite que d’autres plugins soient installés : CFG Saisies SPIP Bonux Diogène swfupload jqueryui
D’autres plugins peuvent être utilisés en complément afin d’améliorer ses capacités : Ancres douces Légendes photo_infos spipmotion (...)
Sur d’autres sites (6067)
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How to send a camera capture frame to YouTube streaming using ffmpeg
2 mars 2024, par 유혜진import 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.


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Output file does not show up after executing ffmpeg command [closed]
19 février 2024, par davaiI'm using ffmpeg to combine an MP3 + G file and produce an MP4 file. I've placed the source code / .exe file for 'ffmpeg' in the project folder, and the MP3 + G files are also in the project folder. I also set the MP4 output to show up in the project folder as well. The weird thing is that, initially, I was producing output files, and while trying to tweak the constant rate factor, the MP4 output just stopped showing up entirely. I'm also not receiving any errors while running the code, and it does print out that the file has been successfully created, despite nothing showing up in the project folder.



 String mp3FilePath = "C:/Users/exampleuser/pfolder/example.mp3";
 String gFilePath = "C:/Users/exampleuser/pfolder/example.cdg";
 String mp4OutputPath = "C:/Users/exampleuser/pfolder/example.mp4";

 try
 {
 String[] command = {
 "C:/Users/tonih/IdeaProjects/MP3GtoMP4Conversion/ffmpeg/ffmpeg-2024-02-19-git-0c8e64e268-full_build/bin/ffmpeg.exe",
 "-i", mp3FilePath, // Input MP3 file
 "-r", "25", // Frame rate
 "-loop", "1", // Loop input video
 "-i", gFilePath, // Input G file
 "-c:v", "libx264", // Video codec
 "-preset", "slow", // Encoding preset for quality (choose according to your requirement)
 "-crf", "18", // Constant Rate Factor (lower is higher quality, typical range 18-28)
 "-c:a", "aac", // Audio codec
 "-b:a", "320k", // Audio bitrate
 "-shortest", // Stop when the shortest stream ends
 mp4OutputPath // Output MP4 file
 };

 Process process = Runtime.getRuntime().exec(command);
 process.waitFor();
 System.out.println("MP4 file created successfully: " + mp4OutputPath);
 }
 catch (IOException | InterruptedException e)
 {
 e.printStackTrace();
 }



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Flutter ffmpeg_kit_flutter_new can't build Android app in any version
30 juin, par user31929I 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 ?