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  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

Sur d’autres sites (9106)

  • ffmpeg fast seek large MP4 over HTTP

    28 juillet 2024, par Gmanicus

    I'm attempting to download snapshots from a video provided by the U.S House of Representatives :

    


    https://houseliveprod-f9h4cpb9dyb8gegg.a01.azurefd.net/east/2024-04-11T08-55-12_Download/video_3000000_1.mp4


    


    I am using fluent-ffmpeg in Node to execute this command :

    


    ffmpeg('https://houseliveprod-f9h4cpb9dyb8gegg.a01.azurefd.net/east/2024-04-11T08-55-12_Download/video_3000000_1.mp4')
  .inputOption(`-ss 03:33:33`)
  .outputOptions([
     '-vframes 1'
  ])
  .output('test.png')

// Effectively:
// ffmpeg -ss 03:33:33 -i  -y -vframes 1 test.png


    


    My intention is to fast-seek to the desired timestamp and take a snapshot over HTTP. However, when doing so, the performance is not great. A snapshot takes about 10s per 3hrs of video and seems to increase fairly linearly at that rate.

    


    However, when using ffmpeg on the same video locally, it's super fast ! Sub-500ms regardless of the desired timestamp.

    


    Is there some magic that could be done via ffmpeg options or perhaps some sort of technique with manual requests to get a snapshot at the desired segment of video more efficiently ?

    


  • ffmpeg Command in Docker with Rust Tokio Closes Warp Server Connection (curl 52 Error)

    3 juin 2024, par user762345

    I’m encountering an issue where executing an ffmpeg concatenation command through Rust’s Tokio process in a Docker container causes subsequent HTTP requests to fail. The error occurs exclusively after running the ffmpeg command and making immediate requests, resulting in a “curl 52 empty response from server” error with the connection being closed. Notably, this issue does not occur when running the same setup outside of Docker. Additionally, if no HTTP requests are made after the ffmpeg command, the curl 52 error does not occur.

    


    Here is the verbose curl output of my minimum reproducible example (see below).

    


    curl -v "http://localhost:3030"
*   Trying 127.0.0.1:3030...
* Connected to localhost (127.0.0.1) port 3030 (#0)
> GET / HTTP/1.1
> Host: localhost:3030
> User-Agent: curl/8.1.2
> Accept: */*
> 
* Empty reply from server
* Closing connection 0
curl: (52) Empty reply from server


    


    Here are Docker logs from my minimum reproducible example (see below). The wav files are concatenated successfully, then the container appears to rebuild.

    


    [2024-06-03T05:26:58Z INFO  minimal_docker_webserver_post_error] Starting server on 0.0.0.0:3030
[2024-06-03T05:26:58Z INFO  warp::server] Server::run; addr=0.0.0.0:3030
[2024-06-03T05:26:58Z INFO  warp::server] listening on http://0.0.0.0:3030
[2024-06-03T05:27:07Z INFO  minimal_docker_webserver_post_error] WAV files concatenated successfully
[Running 'cargo run']
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
     Running `target/debug/minimal_docker_webserver_post_error`
[2024-06-03T05:27:08Z INFO  minimal_docker_webserver_post_error] Starting server on 0.0.0.0:3030
[2024-06-03T05:27:08Z INFO  warp::server] Server::run; addr=0.0.0.0:3030
[2024-06-03T05:27:08Z INFO  warp::server] listening on http://0.0.0.0:3030


    


    What I have tried :
I tried using different web frameworks (Warp, Actix-web) and request crates (reqwest, ureq). I also tried running the setup outside of Docker, which worked as expected without any issues. Additionally, I tried running the setup in Docker without making any HTTP requests after the ffmpeg command, and the connection closed successfully without errors. I also tried posting to httpbin with a minimal request, but the issue persisted.

    


    Minimum reproducible example :

    


    main.rs

    


    use warp::Filter;&#xA;use reqwest::Client;&#xA;use std::convert::Infallible;&#xA;use log::{info, error};&#xA;use env_logger;&#xA;use tokio::process::Command;&#xA;&#xA;#[tokio::main]&#xA;async fn main() {&#xA;    std::env::set_var("RUST_LOG", "debug");&#xA;    env_logger::init();&#xA;&#xA;    let route = warp::path::end()&#xA;        .and_then(handle_request);&#xA;&#xA;    info!("Starting server on 0.0.0.0:3030");&#xA;    warp::serve(route)&#xA;        .run(([0, 0, 0, 0], 3030))&#xA;        .await;&#xA;}&#xA;&#xA;async fn handle_request() -> Result<impl infallible="infallible"> {&#xA;    let client = Client::new();&#xA;&#xA;    let output = Command::new("ffmpeg")&#xA;        .args(&amp;[&#xA;            "y",&#xA;            "-i", "concat:/usr/src/minimal_docker_webserver_post_error/file1.wav|/usr/src/minimal_docker_webserver_post_error/file2.wav",&#xA;            "-c", "copy",&#xA;            "/usr/src/minimal_docker_webserver_post_error/combined.wav"&#xA;        ])&#xA;        .output()&#xA;        .await;&#xA;&#xA;    match output {&#xA;        Ok(output) => {&#xA;            if output.status.success() {&#xA;                info!("WAV files concatenated successfully");&#xA;            } else {&#xA;                error!("Failed to concatenate WAV files: {:?}", output);&#xA;                return Ok(warp::reply::with_status("Failed to concatenate WAV files", warp::http::StatusCode::INTERNAL_SERVER_ERROR));&#xA;            }&#xA;        },&#xA;        Err(e) => {&#xA;            error!("Failed to execute ffmpeg: {:?}", e);&#xA;            return Ok(warp::reply::with_status("Failed to execute ffmpeg", warp::http::StatusCode::INTERNAL_SERVER_ERROR));&#xA;        }&#xA;    }&#xA;&#xA;    // ISSUE: Connection closes with curl: (52) Empty reply from server&#xA;    match client.get("https://httpbin.org/get").send().await {&#xA;        Ok(response) => info!("GET request successful: {:?}", response),&#xA;        Err(e) => error!("GET request failed: {:?}", e),&#xA;    }&#xA;&#xA;    match client.post("https://httpbin.org/post")&#xA;        .body("field1=value1&amp;field2=value2")&#xA;        .send().await {&#xA;        Ok(response) => info!("POST request successful: {:?}", response),&#xA;        Err(e) => error!("POST request failed: {:?}", e),&#xA;    }&#xA;&#xA;    Ok(warp::reply::with_status("Request handled", warp::http::StatusCode::OK))&#xA;}&#xA;</impl>

    &#xA;

    FFMPEG command to generate the two wav files for concatenation

    &#xA;

    ffmpeg -f lavfi -i "sine=frequency=1000:duration=5" file1.wav &amp;&amp; ffmpeg -f lavfi -i "sine=frequency=500:duration=5" file2.wav&#xA;

    &#xA;

    Dockerfile

    &#xA;

    # Use the official Rust image as the base image&#xA;FROM rust:latest&#xA;&#xA;# Install cargo-watch&#xA;RUN cargo install cargo-watch&#xA;&#xA;# Install ffmpeg&#xA;RUN apt-get update &amp;&amp; apt-get install -y ffmpeg&#xA;&#xA;# Set the working directory inside the container&#xA;WORKDIR /usr/src/minimal_docker_webserver_post_error&#xA;&#xA;# Copy the Cargo.toml and Cargo.lock files&#xA;COPY Cargo.toml Cargo.lock ./&#xA;&#xA;# Copy the source code&#xA;COPY src ./src&#xA;&#xA;# Copy wav files&#xA;COPY file1.wav /usr/src/minimal_docker_webserver_post_error/file1.wav&#xA;COPY file2.wav /usr/src/minimal_docker_webserver_post_error/file2.wav&#xA;&#xA;# Install dependencies&#xA;RUN cargo build --release&#xA;&#xA;# Expose the port that the application will run on&#xA;EXPOSE 3030&#xA;&#xA;# Set the entry point to use cargo-watch&#xA;CMD ["cargo", "watch", "-x", "run"]&#xA;

    &#xA;

    Cargo.toml

    &#xA;

    [package]&#xA;name = "minimal_docker_webserver_post_error"&#xA;version = "0.1.0"&#xA;edition = "2021"&#xA;&#xA;# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html&#xA;&#xA;[dependencies]&#xA;warp = "0.3"&#xA;reqwest = { version = "0.12.4", features = ["json"] }&#xA;tokio = { version = "1", features = ["full"] }&#xA;log = "0.4"&#xA;env_logger = "0.11.3"&#xA;

    &#xA;

    Making the request to the warp server

    &#xA;

    curl -v "http://localhost:3030"&#xA;

    &#xA;

  • PyQt6 6.7.0 - How to fix error : No QtMultimedia backends found

    4 février, par Belleroph0N

    Problem on Windows 10 and Windows 11 using Anaconda.

    &#xA;

    Here is the full error message for PyQt6=6.7.0 :

    &#xA;

    No QtMultimedia backends found. Only QMediaDevices, QAudioDevice, QSoundEffect, QAudioSink, and QAudioSource are available.&#xA;Failed to initialize QMediaPlayer "Not available"&#xA;Failed to create QVideoSink "Not available"&#xA;

    &#xA;

    Installed PyQt6 using a requirements file :

    &#xA;

    PyQt6&#xA;PyQt6-WebEngine&#xA;requests&#xA;pyserial&#xA;pynput&#xA;

    &#xA;

    Here are a couple things I tried :

    &#xA;

      &#xA;
    1. Reroll version back to PyQt6=6.6.1. This results in an error as well : ImportError : DLL load failed while importing QtGui : The specified procedure could not be found.
    2. &#xA;

    3. I thought that missing ffmpeg might be the issue so I installed it, but the issue persists.
    4. &#xA;

    5. Tried the setup on Ubuntu (WSL2) and the issue disappears, but there is just a black screen and nothing gets displayed in the widget. (EDIT : Got this up and running, the problem was with differences in file paths in linux vs windows.)
    6. &#xA;

    &#xA;

    I am new to PyQt so any pointers will be helpful !

    &#xA;

    Edit : Here is generic code (taken from here) that gives the same error :

    &#xA;

    from PyQt6.QtGui import QIcon, QFont&#xA;from PyQt6.QtCore import QDir, Qt, QUrl, QSize&#xA;from PyQt6.QtMultimedia import QMediaPlayer&#xA;from PyQt6.QtMultimediaWidgets import QVideoWidget&#xA;from PyQt6.QtWidgets import (QApplication, QFileDialog, QHBoxLayout, QLabel, QStyleFactory,&#xA;        QPushButton, QSizePolicy, QSlider, QStyle, QVBoxLayout, QWidget, QStatusBar)&#xA;&#xA;&#xA;class VideoPlayer(QWidget):&#xA;&#xA;    def __init__(self, parent=None):&#xA;        super(VideoPlayer, self).__init__(parent)&#xA;&#xA;        self.mediaPlayer = QMediaPlayer()&#xA;&#xA;        btnSize = QSize(16, 16)&#xA;        videoWidget = QVideoWidget()&#xA;&#xA;        openButton = QPushButton("Open Video")   &#xA;        openButton.setToolTip("Open Video File")&#xA;        openButton.setStatusTip("Open Video File")&#xA;        openButton.setFixedHeight(24)&#xA;        openButton.setIconSize(btnSize)&#xA;        openButton.setFont(QFont("Noto Sans", 8))&#xA;        openButton.setIcon(QIcon.fromTheme("document-open", QIcon("D:/_Qt/img/open.png")))&#xA;        openButton.clicked.connect(self.abrir)&#xA;&#xA;        self.playButton = QPushButton()&#xA;        self.playButton.setEnabled(False)&#xA;        self.playButton.setFixedHeight(24)&#xA;        self.playButton.setIconSize(btnSize)&#xA;        self.playButton.setIcon(self.style().standardIcon(QStyle.StandardPixmap.SP_MediaPlay))&#xA;        self.playButton.clicked.connect(self.play)&#xA;&#xA;        self.positionSlider = QSlider(Qt.Orientation.Horizontal)&#xA;        self.positionSlider.setRange(0, 0)&#xA;        self.positionSlider.sliderMoved.connect(self.setPosition)&#xA;&#xA;        self.statusBar = QStatusBar()&#xA;        self.statusBar.setFont(QFont("Noto Sans", 7))&#xA;        self.statusBar.setFixedHeight(14)&#xA;&#xA;        controlLayout = QHBoxLayout()&#xA;        controlLayout.setContentsMargins(0, 0, 0, 0)&#xA;        controlLayout.addWidget(openButton)&#xA;        controlLayout.addWidget(self.playButton)&#xA;        controlLayout.addWidget(self.positionSlider)&#xA;&#xA;        layout = QVBoxLayout()&#xA;        layout.addWidget(videoWidget)&#xA;        layout.addLayout(controlLayout)&#xA;        layout.addWidget(self.statusBar)&#xA;&#xA;        self.setLayout(layout)&#xA;&#xA;        #help(self.mediaPlayer)&#xA;        self.mediaPlayer.setVideoOutput(videoWidget)&#xA;        self.mediaPlayer.playbackStateChanged.connect(self.mediaStateChanged)&#xA;        self.mediaPlayer.positionChanged.connect(self.positionChanged)&#xA;        self.mediaPlayer.durationChanged.connect(self.durationChanged)&#xA;        self.mediaPlayer.errorChanged.connect(self.handleError)&#xA;        self.statusBar.showMessage("Ready")&#xA;&#xA;    def abrir(self):&#xA;        fileName, _ = QFileDialog.getOpenFileName(self, "Select Media",&#xA;                ".", "Video Files (*.mp4 *.flv *.ts *.mts *.avi)")&#xA;&#xA;        if fileName != &#x27;&#x27;:&#xA;            self.mediaPlayer.setSource(QUrl.fromLocalFile(fileName))&#xA;            self.playButton.setEnabled(True)&#xA;            self.statusBar.showMessage(fileName)&#xA;            self.play()&#xA;&#xA;    def play(self):&#xA;        if self.mediaPlayer.playbackState() == QMediaPlayer.PlaybackState.PlayingState:&#xA;            self.mediaPlayer.pause()&#xA;        else:&#xA;            self.mediaPlayer.play()&#xA;&#xA;    def mediaStateChanged(self, state):&#xA;        if self.mediaPlayer.playbackState() == QMediaPlayer.PlaybackState.PlayingState:&#xA;            self.playButton.setIcon(&#xA;                    self.style().standardIcon(QStyle.StandardPixmap.SP_MediaPause))&#xA;        else:&#xA;            self.playButton.setIcon(&#xA;                    self.style().standardIcon(QStyle.StandardPixmap.SP_MediaPlay))&#xA;&#xA;    def positionChanged(self, position):&#xA;        self.positionSlider.setValue(position)&#xA;&#xA;    def durationChanged(self, duration):&#xA;        self.positionSlider.setRange(0, duration)&#xA;&#xA;    def setPosition(self, position):&#xA;        self.mediaPlayer.setPosition(position)&#xA;&#xA;    def handleError(self):&#xA;        self.playButton.setEnabled(False)&#xA;        self.statusBar.showMessage("Error: " &#x2B; self.mediaPlayer.errorString())&#xA;&#xA;if __name__ == &#x27;__main__&#x27;:&#xA;    import sys&#xA;    app = QApplication(sys.argv)&#xA;    player = VideoPlayer()&#xA;    player.setWindowTitle("Player")&#xA;    player.resize(900, 600)&#xA;    player.show()&#xA;    sys.exit(app.exec())&#xA;

    &#xA;

    The videos I want to play are in the same folder as this .py file.&#xA;The conda env (python 3.9.2) I am working on has the following packages :

    &#xA;

    certifi                     2024.6.2&#xA;charset-normalizer          3.3.2&#xA;idna                        3.7&#xA;pip                         24.0&#xA;pynput                      1.7.6&#xA;PyQt6                       6.7.0&#xA;PyQt6-Qt6                   6.7.1&#xA;PyQt6-sip                   13.6.0&#xA;PyQt6-WebEngine             6.7.0&#xA;PyQt6-WebEngine-Qt6         6.7.1&#xA;PyQt6-WebEngineSubwheel-Qt6 6.7.1&#xA;pyserial                    3.5&#xA;requests                    2.31.0&#xA;setuptools                  69.5.1&#xA;six                         1.16.0&#xA;urllib3                     2.2.1&#xA;wheel                       0.43.0&#xA;

    &#xA;

    PS : MacOS seems to have the same issue.

    &#xA;