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Video decode memory sample
The video decode memory sample illustrates a way to pass the data chunk-by-chunk sequentially to the FFMPEG demuxer which is then decoded on AMD hardware using rocDecode library.
The sample provides a user class FileStreamProvider derived from the existing VideoDemuxer::StreamProvider to read a video file and fill the buffer owned by the demuxer. It then takes frames from this buffer for further parsing and decoding.
Prerequisites:
Build
mkdir video_decode_mem_sample && cd video_decode_mem_sample
cmake ../
make -j
Run
./videodecodemem -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]>
-m <output_surface_memory_type - decoded surface memory [optional - default: 0][0 : OUT_SURFACE_MEM_DEV_INTERNAL/ 1 : OUT_SURFACE_MEM_DEV_COPIED/ 2 : OUT_SURFACE_MEM_HOST_COPIED/ 3 : OUT_SURFACE_MEM_NOT_MAPPED]>