Aryan Salmanpour
bc48060ff0
* Fix a segmentation fault on some samples when the memory type is 3 (OUT_SURFACE_MEM_NOT_MAPPED) and attempting to save the output (which is not supported)
* update the videoDecodeMultiFiles sample
* update the readme for videoDecodeMultiFiles
* add comments
* use OUT_SURFACE_MEM_NOT_MAPPED instead of integer number 3
[ROCm/rocdecode commit: 31c7c7c104]
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:
-
Install rocDecode
-
- On
Ubuntu
sudo apt install ffmpeg libavcodec-dev libavformat-dev libavutil-dev- On
RHEL/SLES- install ffmpeg development packages manually or use rocDecode-setup.py script
- On
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]>