Julian Bouzas 3208d6c62a lcevcdec: Fix LCEVC picture access flags
Even though the LCEVC decoder works fine without this, it is recommended to
set read access to base pictures that are sent to the decoder, and write access
to enhanced pictures that are received from the decoder.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9463>
2025-08-21 14:00:54 +00:00
..
2024-10-02 20:33:13 +00:00

LCEVC Decoder Build Instructions

  1. Build and install the V-Nova's LCEVC Decoder SDK (LCEVCdec):
$ git clone https://github.com/v-novaltd/LCEVCdec.git
$ cd LCEVCdec
  • Build and install the SDK
  • $BUILD_DIR and $INSTALL_DIR are local build and install directories
$ mkdir $BUILD_DIR
$ cd $BUILD_DIR
$ cmake  -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$INSTALL_DIR ..
$ cmake --build .
$ cmake --install .
  1. Build LCEVC decoder (lcevcdecoder) plugin for GStreamer:
  • You can now build the lcevcdecoder plugin by using the '-Dgst-plugins-bad:lcevcdecoder=enabled' meson flag
  • $BUILD_DIR and $INSTALL_DIR are local build and install directories
  • For example:
$ cd GStreaner
$ meson setup $BUILD_DIR --pkg-config-path=$INSTALL_DIR/lib/pkgconfig -Dgst-plugins-bad:lcevcdecoder=enabled
$ ninja -C $BUILD_DIR
  1. Run GStreamer LCEVC decoder pipeline:
  • If the build was successful, you can test LCEVC decoding with the following pipeline:
$ gst-launch-1.0 filesrc location=/home/user/lcevc-sample.mp4 ! qtdemux ! h264parse ! openh264dec ! lcevcdec ! videoconvert ! autovideosink
  • LCEVC decoding should also work with autoplugging elements:
$ gst-launch-1.0 playbin uri=file:///home/user/lcevc-sample.mp4