rocm-systems/samples/videoDecodePicFiles

Video decode picture files sample

The video decode picture files sample illustrates decoding an elementary video stream which is stored in multiple files with each file containing bitstream data of a coded picutre. This sample can be configured with a device ID and optionally able to dump the output to a file. This sample uses the high-level RocVideoDecoder class which connects both the video parser and Rocdecoder. This process repeats in a loop until all frames have been decoded.

Prerequisites:

• Install rocDecode

Build

mkdir video_decode_pic_files && cd video_decode_pic_files
cmake ../
make -j

Run

./videodecodepicfiles -i <Input picture files [required]>
                    -codec <Codec type (0: HEVC, 1: AVC; 2: AV1; 3: VP9) - [required]>
                    -l <Number of iterations [optional - default: 1]>
                    -o <output path to save decoded YUV frames [optional]> 
                    -d <GPU device ID - 0:device 0 / 1:device 1/ ... [optional - default:0]>
                    -f <Number of decoded frames - specify the number of pictures to be decoded [optional]>
                    -z <force_zero_latency - Decoded frames will be flushed out for display immediately [optional]>
                    -disp_delay <display delay - specify the number of frames to be delayed for display [optional - default: 1]>
                    -sei <extract SEI messages [optional]>
                    -md5 <generate MD5 message digest on the decoded YUV image sequence [optional]>
                    -md5_check MD5_File_Path <generate MD5 message digest on the decoded YUV image sequence and compare to the reference MD5 string in a file [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]>