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products:sbc:edge2:applications:hardware-decoding
Table of Contents
Edge2 Hardware Decoding
Introduction
This document mainly introduces how to use hardware decoding on Edge2.
Decoding
If encounter error, please add sudo and try again.
1. Check decoder.
khadas@Khadas:~$ gst-inspect-1.0 | grep mpp
rockchipmpp: mpph264enc: Rockchip Mpp H264 Encoder
rockchipmpp: mpph265enc: Rockchip Mpp H265 Encoder
rockchipmpp: mppjpegdec: Rockchip's MPP JPEG image decoder
rockchipmpp: mppjpegenc: Rockchip Mpp JPEG Encoder
rockchipmpp: mppvideodec: Rockchip's MPP video decoder
rockchipmpp: mppvp8enc: Rockchip Mpp VP8 Encoder
typefindfunctions: audio/x-musepack: mpc, mpp, mp+
2. Decoding with H264 file.
khadas@Khadas:~$ gst-launch-1.0 filesrc location=./test.h264 ! h264parse ! mppvideodec ! video/x-raw,format=NV12 ! filesink location=test.yuv
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
Redistribute latency...
New clock: GstSystemClock
0:00:01.2 / 1:04:25.7 (0.0 %)
0:00:02.2 / 1:33:57.6 (0.0 %)
3. Decoding with MP4 file.
khadas@Khadas:~$ gst-launch-1.0 filesrc location=./test.mp4 ! qtdemux name=d d.video_0 ! h264parse ! mppvideodec ! video/x-raw,format=NV12 ! filesink location=test.yuv
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
Redistribute latency...
New clock: GstSystemClock
0:00:01.8 / 0:10:34.5 (0.3 %)
If you want to play your decoded fileļ¼ you can play with ffpaly.
4. Decoding from RTSP stream and preview.
Ubuntu 24.04
You can use gstreamer waylandsink to preview the video on Ubuntu Wayland desktop:
gst-launch-1.0 rtspsrc location=rtsp://USERNAME:PASSWD@192.168.xxx.xxx/snl/live/1/1 ! rtph264depay ! h264parse ! mppvideodec ! video/x-raw,format=NV12 ! waylandsink
You can use the command below to check display fps:
gst-launch-1.0 -v rtspsrc location=rtsp://USERNAME:PASSWD@192.168.xxx.xxx/snl/live/1/1 ! rtph264depay ! h264parse ! mppvideodec ! video/x-raw,format=NV12 ! fpsdisplaysink video-sink=waylandsink sync=false text-overlay=false
Display with ffmpeg:
ffplay -vcodec h264_rkmpp rtsp://USERNAME:PASSWD@192.168.xxx.xxx/snl/live/1/1
Ubuntu 22.04
You can use gstreamer clutterautovideosink to preview the video on Ubuntu Wayland desktop:
gst-launch-1.0 rtspsrc location=rtsp://USERNAME:PASSWD@192.168.xxx.xxx/snl/live/1/1 ! rtph264depay ! h264parse ! mppvideodec ! video/x-raw,format=NV12 ! clutterautovideosink
You can use the command below to check display fps:
gst-launch-1.0 -v rtspsrc location=rtsp://USERNAME:PASSWD@192.168.xxx.xxx/snl/live/1/1 ! rtph264depay ! h264parse ! mppvideodec ! video/x-raw,format=NV12 ! fpsdisplaysink video-sink=clutterautovideosink sync=false text-overlay=false
You press Alt + F7 and then move mouse to move the windown.
Please replace the RTSP stream with yours.
Last modified: 2025/09/09 21:26 by nick