Kiriti Gowda
9b64f18bc0
* CMakeLists - Updates and cleanup
* CTest - CXX Compiler Updates
* Package - Remove FFMPEG exe deps
* CMakeLists - Updates and cleanup
* CTest - CXX Compiler Updates
* Package - Remove FFMPEG exe deps
* FFMPEG - Updates
[ROCm/rocdecode commit: 913b6728f0]
36 خطوط
1.3 KiB
Markdown
36 خطوط
1.3 KiB
Markdown
# 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](../../README.md#build-and-install-instructions)
|
|
|
|
* [FFMPEG](https://ffmpeg.org/about.html)
|
|
|
|
* On `Ubuntu`
|
|
|
|
```shell
|
|
sudo apt install libavcodec-dev libavformat-dev libavutil-dev
|
|
```
|
|
|
|
* On `RHEL`/`SLES` - install ffmpeg development packages manually or use [rocDecode-setup.py](../../rocDecode-setup.py) script
|
|
|
|
## Build
|
|
|
|
```shell
|
|
mkdir video_decode_rgb_sample && cd video_decode_rgb_sample
|
|
cmake ../
|
|
make -j
|
|
```
|
|
|
|
## Run
|
|
|
|
```shell
|
|
./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>
|
|
``` |