derek.holloway
7502bf64a4
CodeQL / Analyze (actions) (push) Canceled after 0s
CodeQL / Analyze (python) (push) Canceled after 0s
pre-commit / pre-commit (push) Canceled after 0s
Multi-Arch CI / setup (push) Canceled after 0s
Publish build_manylinux_x86_64 images / publish_build_manylinux_x86_64 (push) Canceled after 0s
Setup (Multi-Arch) / setup (push) Canceled after 0s
Multi-Arch CI / Linux::${{ fromJSON(needs.setup.outputs.linux_build_config || '{}').build_variant_label || 'skip' }} (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Publish no_rocm_image_ubi10 image / publish_no_rocm_image_ubi10 (push) Canceled after 0s
Multi-Arch CI / Windows::${{ fromJSON(needs.setup.outputs.windows_build_config || '{}').build_variant_label || 'skip' }} (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Multi-Arch CI / Manifest Diff (push) Canceled after 0s
TheRock Manifest Diff Report / Generate Manifest Diff Report (push) Canceled after 0s
Multi-Arch CI / CI Summary (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04 (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04_ocl_rt images / publish_no_rocm_image_ubuntu24_04_ocl_rt (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04_rocgdb (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04_rocgdb images / publish_no_rocm_image_ubuntu24_04_rocgdb (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04_ocl_rt (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Unit Tests / Unit Tests :: ubuntu-24.04 (push) Canceled after 0s
Unit Tests / Unit Tests :: windows-2022 (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04_media (push) Canceled after 0s
Unit Tests / Unit Tests Summary (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04_openmpi (push) Canceled after 0s
38 lines
2.1 KiB
Markdown
38 lines
2.1 KiB
Markdown
# Video decode sample
|
|
|
|
The VideoToSequence sample illustrates decoding a single packetized video stream using FFMPEG demuxer and splitting it into multiple video sequences. This uses seek functionality to seek to a random position and extract a batch of video sequences in YUV format with step and stride. 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 until a batch of sequences are extracted or EOS is reached.
|
|
|
|
## Prerequisites:
|
|
|
|
* Install [rocDecode](https://rocm.docs.amd.com/projects/rocDecode/en/latest/install/rocDecode-build-and-install.html)
|
|
|
|
* [FFMPEG](https://ffmpeg.org/about.html)
|
|
|
|
```shell
|
|
sudo apt install libavcodec-dev libavformat-dev libavutil-dev
|
|
```
|
|
|
|
## Build
|
|
|
|
```shell
|
|
mkdir video_decode_sample && cd video_decode_sample
|
|
cmake ../
|
|
make -j
|
|
```
|
|
|
|
## Run
|
|
|
|
```shell
|
|
./videotosequence -i <Input file/folder Path [required]>
|
|
-o <Output folder to dump sequences - dumps output if requested [optional]>
|
|
-d <GPU device ID - 0:device 0 / 1:device 1/ ... [optional - default:0]>
|
|
-b <batch_size - specify the number of sequences to be decoded [optional - default:1]>
|
|
-step <frame interval between each sequence [optional - default:1]>
|
|
-stride <distance between consecutive frames in a sequence [optional - default:1]>
|
|
-l <Number of frames in each sequence [optional - default:1]>
|
|
-crop <crop rectangle for output (not used when using interopped decoded frame) [optional - default:1]>
|
|
-seek_mode <option for seeking (0: no seek 1: seek to prev key frame) [optional - default: 0]>
|
|
-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]>
|
|
```
|