Aryan Salmanpour
27 lines
1.5 KiB
Markdown
27 lines
1.5 KiB
Markdown
# JPEG decode sample
|
|
|
|
The jpeg decode sample illustrates decoding a JPEG images using rocJPEG library to get the individual decoded images in one of the supported output format (i.e., native, yuv, y, rgb, rgb_planar). This sample can be configured with a device ID and optionally able to dump the output to a file.
|
|
|
|
## Prerequisites:
|
|
|
|
* Install [rocJPEG](../../README.md#build-and-install-instructions)
|
|
|
|
## Build
|
|
|
|
```shell
|
|
mkdir jpeg_decode_sample && cd jpeg_decode_sample
|
|
cmake ../
|
|
make -j
|
|
```
|
|
|
|
## Run
|
|
|
|
```shell
|
|
./jpegdecode -i <[input path] - input path to a single JPEG image or a directory containing JPEG images - [required]>
|
|
-be <[backend] - select rocJPEG backend (0 for hardware-accelerated JPEG decoding using VCN,
|
|
1 for hybrid JPEG decoding using CPU and GPU HIP kernels (currently not supported)) [optional - default: 0]>
|
|
-fmt <[output format] - select rocJPEG output format for decoding, one of the [native, yuv_planar, y, rgb, rgb_planar] [optional - default: native]>
|
|
-o <[output path] - path to an output file or a path to a directory - write decoded images to a file or directory based on selected output format [optional]>
|
|
-crop <[crop rectangle] - crop rectangle for output in a comma-separated format: left,top,right,bottom - [optional]>
|
|
-d <[device id] - specify the GPU device id for the desired device (use 0 for the first device, 1 for the second device, and so on); [optional - default: 0]>
|
|
``` |