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# LCEVC decoder build

### Build and Install the LCEVC Decoder SDK

1. Clone the repository:

   ```bash
   bashCopyEdit$ git clone https://github.com/v-novaltd/LCEVCdec.git
   $ cd LCEVCdec
   ```
2. Build and install the SDK:

   ```bash
   bashCopyEdit$ mkdir $BUILD_DIR
   $ cd $BUILD_DIR
   $ cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$INSTALL_DIR ..
   $ cmake --build .
   $ cmake --install .
   ```

***

### Build the LCEVC GStreamer Decoder Plugin

```bash
bashCopyEdit$ cd GStreamer
$ meson setup $BUILD_DIR --pkg-config-path=$INSTALL_DIR/lib/pkgconfig -Dgst-plugins-bad:lcevcdecoder=enabled
$ ninja -C $BUILD_DIR
```

***

### Run a GStreamer LCEVC Decoder Pipeline

Basic decoding pipeline:

```bash
bashCopyEdit$ gst-launch-1.0 filesrc location=/home/user/lcevc-sample.mp4 \
! qtdemux ! h264parse ! openh264dec ! lcevcdec ! videoconvert ! autovideosink
```

With automatic element discovery:

```bash
bashCopyEdit$ gst-launch-1.0 playbin uri=file:///home/user/lcevc-sample.mp4
```


---

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