[REQ] cartwheel-FFMPEG version

Hi there, yesterday I've succesfully compiled cctv-viewer but, since I run it on an old Intel NUC NUC5i5MYHE, I need to take advantage of any possible optimization.

ChatGPT suggests:

build qmlav with cartwheel-FFMPEG CPU (but not QuickSync) optimizations;
enable CPU-specific optimizations (-march=native and -mtune=native);
disable debugging (-O2 and -O3);
enable Qt hardware acceleration (QOpenGLWidget, QPainter, etc).

Today I asked Copilot to mod prebuild_ffmpeg.sh for cartwheel but, since I'm not a dev, I don't understand if it's trustable:

#!/bin/bash

# Directory where FFMPEG-cartwheel will be cloned
FFMPEG_DIR="cartwheel-ffmpeg"

# Clone the FFMPEG-cartwheel repository
if [ ! -d "$FFMPEG_DIR" ]; then
    git clone https://github.com/intel/cartwheel-ffmpeg.git "$FFMPEG_DIR"
    cd "$FFMPEG_DIR"
    git submodule update --init --recursive
else
    cd "$FFMPEG_DIR"
    git pull
    git submodule update --init --recursive
fi

# Configure the build
./configure --prefix=$(pwd)/build --enable-shared --enable-vaapi --enable-libvpl

# Compile and install
make -j$(nproc)
make install

# Go back to the original directory
cd ..

# Set environment variables to use the newly built FFMPEG
export PATH=$(pwd)/$FFMPEG_DIR/build/bin:$PATH
export PKG_CONFIG_PATH=$(pwd)/$FFMPEG_DIR/build/lib/pkgconfig:$PKG_CONFIG_PATH
export LD_LIBRARY_PATH=$(pwd)/$FFMPEG_DIR/build/lib:$LD_LIBRARY_PATH

echo "FFMPEG-cartwheel has been built and installed successfully."

Last but not least, if you find it interesting, why don't add - as an option - this officially ?

Thanks in advance.

iEvgeny / qmlav

[REQ] cartwheel-FFMPEG version #4