This module contains a GStreamer plugin for using the encoders, decoders, muxers, and demuxers provided by FFmpeg. It is called gst-libav for historical reasons.

This specific branch is designed to be used to restore DTS playback on newer LG webOS based TVs, such as OLED CX models.

The following assumes that you have cloned this repo and installed the WebOS SDK from: https://github.com/webosbrew/meta-lg-webos-ndk/releases

. /opt/webos-sdk-x86_64/1.0.g/environment-setup-armv7a-neon-webos-linux-gnueabi
./autogen.sh --noconfigure
cd gst-libs/ext/libav/
git am ../../../libav-Force-stereo-downmix-and-integer-output-.patch
cd -
./configure --enable-shared --with-libav-extra-configure="--disable-everything --enable-parser=dca --enable-decoder=dca --enable-decoder=aac --enable-decoder=ac3 --enable-decoder=alac --enable-decoder=amrnb --enable-decoder=amrwb --enable-decoder=eac3 --enable-decoder=flac --enable-decoder=mp3 --enable-decoder=wmapro --enable-decoder=wmav1 --enable-decoder=wmav2 --enable-decoder=wmavoice --enable-decoder=h264" --host=arm-webos-linux-gnueabi --with-sysroot="$SDKTARGETSYSROOT" --prefix="$SDKTARGETSYSROOT" CPPFLAGS="$CPPFLAGS -I$SDKTARGETSYSROOT/include"
make

You can then find libgstlibav.so under ext/libav/.libs/.

GStreamer is developed under the terms of the LGPL-2.1 (see COPYING file for details), and that includes the code in this repository.

However, this repository depends on FFmpeg, which can be built in the following modes using various ./configure switches: LGPL-2.1, LGPL-3, GPL, or non-free.

This can mean, for example, that if you are distributing an application which has a non-GPL compatible license (like a closed-source application) with GStreamer, you have to make sure not to build FFmpeg with GPL code enabled.

Overall, when using plugins that link to GPL libraries, GStreamer is for all practical reasons under the GPL itself.

The above recommendations are not legal advice, and you are responsible for ensuring that you meet your licensing obligations.