Files

T

jeffqjiangNew e4614de461 Fixed several issues with cropping. (#275 )

* * rocDecode: Fixed several issues with cropping.
  - Fixed the pixel start offset error on streams with non-zero top/left cropping in MD5 calculation.
  - Fixed the pixel start offset error on streams with non-zero top/left cropping, and/or with user specified cropping in YUV frame output.
  - Sorted out code which deals with cropping area specifiied by the bitstream, and cropping area specified by the user.

* * rocDecode: Additional changes after discussion.
 - Set display rect for decoder create/reconfig to displayable area or user specified ROI area.
 - Do not set target rect for decoder create/reconfig. Leave it for future use.
 - Unified naming of display rect in decoder create/reconfig structs.

* * rocDecode: Put back the extra rounding to target width/height specifiied by the coded stream, for peace of mind, based on code review.

* * rocDecode: Added the missing stream specified cropping offset to the starting pixel pointer for none-internal memory modes.

---------

Co-authored-by: Aryan Salmanpour <aryan.salmanpour@amd.com>

2024-03-11 22:35:11 -04:00

CMakeLists.txt

FFMPEG - Multi-version support (#270 )

2024-03-05 08:34:05 -05:00

README.md

Doc - Updates (#231 )

2024-02-09 13:31:44 -05:00

videodecrgb.cpp

Fixed several issues with cropping. (#275 )

2024-03-11 22:35:11 -04:00

README.md

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>