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• Can't update app in store because of target api23 (no downgrade possible)

  4 mai 2016, par Thkru

  long story short :

  • I have an app in the store, uploaded with target(!) api23
  • Now I have to use the metaio SDK (Augmented reality) to implement a feature
  • this SDK is not maintained anymore (company got bought & closed by apple)
  • metaio SDK crashes when using a target api23
    • ...because of text relocations in the ffmpeg lib, in libavcodec.so, see also :
    • libavcodec.so : has text relocations
    • http://rg4.net/archives/1973.html
    • https://github.com/wseemann/FFmpegMediaPlayer/issues/64

  Problem :

  • apps uploaded with target api23 once, can’t be updated with lower target api
  • metaio can’t handle api23, due to a text relocations bug

  Idea so far :

  • replace the old libavcodec.so (arm & x86) by a newer version,
    but I can’t find any compiled version...

  PS : sure it’s dump to use a deprecated sdk and it has to be replaced sometime in the future, but for now I have to use it, as there’s a huge content and backend part that is used in the project.

  PPS : worst case idea is to upload the same app but with a different ID, api22 and AR features in the GooglePlay...and having two nearly identical apps... <_<

  Thanks a lot for every help ! :)

• Révision 17405 : Petit changement dans l’appel des 2 fonctions infos_plugin et infos_paquet charg...

  14 mars 2011, par esj@rezo.net

  Par exemple pour avoir le tableau des arbres des syntaxe abstraites de tous les plugins d’un dépot, faire : $ar = file_get_contents(’archives.xml’) ; preg_match_all(’@&lt ;plugin&gt ;.* ?&lt ;/plugin&gt ;@s’, $ar, $m) ; $f = charger_fonction(’infos_plugin’, ’plugins’) ; $m = $m[0] ; (...)

• Websocket connection in Docker

  22 avril 2024, par Akhil Varghese

  I have a Node.js app that takes an RTSP URL as input and provide a jsmpeg websocket stream as output. The focus of app is to generate a web compatible stream from an RTSP stream, and I have acheived this using a package rtsp-relay.&#xA;The app is working fine in locally.&#xA;But after dockerizing the app, I am not receiving the output stream. The stream is getting terminated.

  &#xA;

  The log is&#xA;

  &#xA;

  The Dockerfile is :&#xA;I am building the ffmpeg from source in docker.

  &#xA;

  
# Install necessary packages
RUN apt-get update && \
    DEBIAN_FRONTEND=noninteractive apt-get install -yq \
    autoconf \
    automake \
    build-essential \
    cmake \
    git \
    libass-dev \
    libfreetype6-dev \
    libgnutls28-dev \
    libmp3lame-dev \
    libsdl2-dev \
    libtool \
    libva-dev \
    libvdpau-dev \
    libvorbis-dev \
    libxcb1-dev \
    libxcb-shm0-dev \
    libxcb-xfixes0-dev \
    meson \
    ninja-build \
    pkg-config \
    texinfo \
    wget \
    yasm \
    zlib1g-dev \
    libunistring-dev \
    libaom-dev \
    libdav1d-dev \
    libnuma-dev \
    libopus-dev && \
    rm -rf /var/lib/apt/lists/*

# Create directories
RUN mkdir -p /ffmpeg_sources /ffmpeg_build /bin
RUN apt-get update
RUN  apt-get install -y nasm
RUN  apt-get install -y yasm

# Build and install NASM
WORKDIR /ffmpeg_sources
RUN wget https://www.nasm.us/pub/nasm/releasebuilds/2.16.01/nasm-2.16.01.tar.bz2 && \
    tar xjvf nasm-2.16.01.tar.bz2 && \
    cd nasm-2.16.01 && \
    ./autogen.sh && \
    ./configure --prefix="/ffmpeg_build" --bindir="/bin" && \
    make && \
    make install

# Build and install x264
RUN apt-get update
RUN apt-get install -y libx264-dev


# Build and install x265
RUN apt-get install -y libx265-dev libnuma-dev

# Build and install libvpx
RUN git clone --depth 1 https://chromium.googlesource.com/webm/libvpx.git && \
    cd libvpx && \
    ./configure --prefix="/ffmpeg_build" --disable-examples --disable-unit-tests --enable-vp9-highbitdepth --as=yasm && \
    make && \
    make install

# Build and install fdk-aac
RUN git clone --depth 1 https://github.com/mstorsjo/fdk-aac && \
    cd fdk-aac && \
    autoreconf -fiv && \
    ./configure --prefix="/ffmpeg_build" --disable-shared && \
    make && \
    make install

# Build and install opus
RUN git clone --depth 1 https://github.com/xiph/opus.git && \
    cd opus && \
    ./autogen.sh && \
    ./configure --prefix="/ffmpeg_build" --disable-shared && \
    make && \
    make install

# Build and install SVT-AV1
RUN git clone --depth=1 https://gitlab.com/AOMediaCodec/SVT-AV1.git && \
    cd SVT-AV1 && \
    cd Build && \
    cmake .. -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release && \
    make && \
    make install


# Build and install dav1d
RUN git clone --depth 1 https://code.videolan.org/videolan/dav1d.git && \
    mkdir -p dav1d/build && \
    cd dav1d/build && \
    meson setup -Denable_tools=false -Denable_tests=false --default-library=static .. --prefix "/ffmpeg_build" --libdir="/ffmpeg_build/lib" && \
    ninja && \
    ninja install

# Build and install ffmpeg
RUN wget -O ffmpeg-snapshot.tar.bz2 https://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2 && \
    tar xjvf ffmpeg-snapshot.tar.bz2 && \
    cd ffmpeg && \
    ./configure \
      --prefix="/ffmpeg_build" \
      --pkg-config-flags="--static" \
      --extra-cflags="-I/ffmpeg_build/include" \
      --extra-ldflags="-L/ffmpeg_build/lib" \
      --extra-libs="-lpthread -lm" \
      --ld="g++" \
      --bindir="/bin" \
      --enable-gpl \
      --enable-gnutls \
      --enable-libaom \
      --enable-libass \
      --enable-libfdk-aac \
      --enable-libfreetype \
      --enable-libmp3lame \
      --enable-libopus \
      --enable-libsvtav1 \
      --enable-libdav1d \
      --enable-libvorbis \
      --enable-libvpx \
      --enable-libx264 \
      --enable-libx265 \
      --enable-nonfree \
      --extra-ldflags="-lm -lstdc++ -L/ffmpeg_build/lib -Wl,-rpath,/ffmpeg_build/lib" \
      --extra-cflags="-I/ffmpeg_build/include" \
      --extra-libs="-lpthread -lm -lstdc++" && \
    make && \
    make install && \
    hash -r

# Update PATH
ENV PATH="/ffmpeg_build/bin:${PATH}"

# Cleanup
RUN rm -rf /ffmpeg_sources

# Source profile
RUN echo "source /root/.profile" >> ~/.bashrc



WORKDIR /usr/src/app
RUN apt-get update
RUN apt-get install -y nodejs
RUN apt-get install -y npm
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 2000
CMD ["npm", "start"]


  &#xA;

  While checking the network rules in the Docker image with the command : iptables -L&#xA;I am getting the following response :&#xA;

  &#xA;

  I am able to access every API of the dockerized app, and I receive the responses and logs. but I'm not receiving the jsmpeg stream through the websocket connection.

  &#xA;

  I'm uncertain about the exact problem or how to resolve it.If you have encountered a similar issue before, and have a solution, I would greatly appreciate your assistance.

  &#xA;