rocm-systems/samples/videoDecode/README.md

# Video Decode Sample
This sample illustrates the FFMPEG demuxer to get the individual frames which are then decoded on AMD hardware using VAAPI.

This sample supports both YUV420 8-bit and 10-bit streams.

## Prerequisites:

* Linux distribution
  + Ubuntu - `20.04` / `22.04`

* [ROCm supported hardware](https://rocm.docs.amd.com/en/latest/release/gpu_os_support.html)

* Install [ROCm 5.5 or later](https://rocmdocs.amd.com/en/latest/deploy/linux/installer/install.html) with `--usecase=graphics,rocm --no-32`

* rocDecode

* CMake `3.5` or later

* [FFMPEG](https://ffmpeg.org/about.html)
  ```
  sudo apt install ffmpeg libavcodec-dev libavformat-dev libswscale-dev
  ```

## Build
```
mkdir build
cd build
cmake ../
make -j
```
# Run 
```
./videodecode -i <input video file [required]> 
              -o <output path to save decoded YUV frames [optional]> 
              -d <GPU device ID - 0:device 0 / 1:device 1/ ... [optional - default:0]>
```