NVIDIA Jetson Xavier NX GStreamer Accelerated Elements
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Hardware Accelerators Overview
Jetson Xavier NX has different hardware accelerator units that help take out the most performance of the system without generating an extra CPU load on the processing. This platform contains the following hardware accelerated units:
- 384-core NVIDIA Volta™ GPU with 48 Tensor Cores
- 2x NVDLA Engines (DL Accelerator)
- 7-Way VLIW Vision Processor (Vision Accelerator)
- ISP
- Compositor (VIC)
- Multimedia Complex: NV encoder, NV decoder, NV JPEG
GStreamer takes advantage of those hardware accelerated units and offers a series of elements that use those HW-accelerated units to perform the respective processing.
Jetson Xavier NX HW-accelerated encoding supported formats:
- H.265 (HEVC)
- H.264
- VP9
- NOTE: VP8 encoding is not supported with hardware acceleration
Jetson Xavier NX HW-accelerated decoding supported formats:
- H.265 (HEVC)
- H.264
- VP8
- VP9
- MPEG-4
- MPEG-2
- VC-1
NVIDIA Proprietary Elements
Following the list of NVIDIA proprietary elements for GStreamer 1.0:
| Element | Description |
|---|---|
| nvarguscamerasrc | Source element to capture from a camera using the ARGUS API |
| nvv4l2camerasrc | Source element to capture from a camera using the V4l2 API |
| nvidconv | Filter element to perfom format conversion and scaling |
| nvcompositor | Video compositor plugin |
| nveglstreamsrc | Acts as GStreamer Source Component, accepts EGLStream from EGLStream producer |
| nvvideosink | Video Sink Component. Accepts YUV-I420 format and produces EGLStream (RGBA) |
| nvegltransform | Video transform element for NVMM to EGLimage (supported with nveglglessink only) |
| nveglglessink | EGL/GLES videosink element, both the X11 and Wayland backends |
| nv3dsink | EGL/GLES videosink element |
| nvdrmvideosink | DRM videosink element |
| nvjpegenc | JPEG encoder element |
| nvjpegdec | JPEG decoder element |
| nvv4l2h264enc | H.264 video encoder, uses V4L2 API |
| nvv4l2h265enc | H.265 video encoder, uses V4L2 API |
| nvv4l2vp9enc | VP9 video encoder, uses V4L2 API |
| nvv4l2decoder | Video decoder for H.264, H.265, VP8, VP9, MPEG4 and MPEG2 formats, uses V4L2 API |
OpenMax Elements
| Element | Description |
|---|---|
| omxh264enc | H.264 video encoder, uses OpenMax |
| omxh265enc | H.265 video encoder, uses OpenMax |
| omxvp9enc | VP9 video encoder, uses OpenMax |
| omxmpeg4videodec | MPEG4 video decoder, uses OpenMax |
| omxmpeg2videodec | OpenMAX MPEG2 video decoder, uses OpenMax |
| omxwmvdec | OpenMAX OpenMAX WMV video decoder, uses OpenMax |
| omxh264dec | H.264 video decoder, uses OpenMax |
| omxh265dec | H.265 video decoder, uses OpenMax |
| omxvp8dec | VP8 video decoder, uses OpenMax |
| omxvp9dec | VP9 video decoder, uses OpenMax |
| nvoverlaysink | OpenMax video sink |