Files
rocm-systems/projects/rocdecode/samples/videoDecodeRGB
jeffqjiangNew 2bad24f6f2 Simplified MD5 string compare code and fixed potential incorrect conversion of MD5 string to integers. (#414)
* * rocDecode: Fixed potential incorrect conversion of MD5 string to integers.

* * rocDecode: Changed a string name.

* * rocDecode: Simplified the MD5 string compare code.

* * rocDecode: Added minor changed based on review comments.

* * rocDecode: Minor changes.

* * rocDecode/Sample script: Added units to Bit rate field in csv output.

[ROCm/rocdecode commit: 14f4c6973a]
2024-09-16 15:27:10 -04:00
..
2024-02-09 13:31:44 -05:00

Video decode RGB sample

This sample illustrates the FFMPEG demuxer to get the individual frames which are then decoded using rocDecode API and optionally color-converted using custom HIP kernels on AMD hardware. This sample converts decoded YUV output to one of the RGB or BGR formats(24bit, 32bit, 464bit) in a separate thread allowing it to run both VCN hardware and compute engine in parallel.

This sample uses HIP kernels to showcase the color conversion. Whenever a frame is ready after decoding, the ColorSpaceConversionThread is notified and can be used for post-processing.

Prerequisites:

  • Install rocDecode

  • FFMPEG

    • 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

Build

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

Run

./videodecodergb    -i <input video file - required> 
                    -o <optional; output path to save decoded YUV frames>
                    -d <GPU device ID, 0 for the first device, 1 for the second device, etc> 
                    -of <optional: output format bgr, bgra, bgr48, bgr64 etc>