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 rocDecode library.

Prerequisites:

• Linux distribution

  • Ubuntu - 20.04 / 22.04

• ROCm supported hardware

• Install ROCm 5.5 or later with --usecase=graphics,rocm --no-32

• rocDecode

• CMake 3.5 or later

• FFMPEG

  sudo apt install ffmpeg
  

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]>
              -z <force_zero_latency - Decoded frames will be flushed out for display immediately [optional]>
              -sei <extract SEI messages [optional]>
              -crop <crop rectangle for output (not used when using interopped decoded frame) [optional - default: 0,0,0,0]>