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--- products:sbc:edge2:applications:hardware-decoding [2022/09/07 02:15]
nick created
+++ products:sbc:edge2:applications:hardware-decoding [2025/09/09 21:26] (current)
nick
@@ Line 1: / Line 1: @@
 ====== Edge2 Hardware Decoding ======
+===== Introduction =====
+This document mainly introduces how to use hardware decoding on Edge2.
+===== Decoding =====
+<WRAP important >
+If encounter error, please add sudo and try again.
+</WRAP>
+. Check decoder.
+```shell
+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+
+```
+. Decoding with H264 file.
+```shell
+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
+:00:01.2 / 1:04:25.7 (0.0 %)
+:00:02.2 / 1:33:57.6 (0.0 %)
+```
+. Decoding with MP4 file.
+```shell
+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
+:00:01.8 / 0:10:34.5 (0.3 %)
+```
+If you want to play your decoded file， you can play with ''ffpaly''.
+. Decoding from RTSP stream and preview.
+<tabbox Ubuntu 24.04>
+You can use gstreamer ''waylandsink'' to preview the video on Ubuntu Wayland desktop:
+```shell
+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:
+```shell
+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'':
+```shell
+ffplay -vcodec h264_rkmpp rtsp://USERNAME:PASSWD@192.168.xxx.xxx/snl/live/1/1
+```
+<tabbox Ubuntu 22.04>
+You can use gstreamer ''clutterautovideosink'' to preview the video on Ubuntu Wayland desktop:
+```shell
+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:
+```shell
+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.
+</tabbox>
+<WRAP tip >
+Please replace the RTSP stream with yours.
+</WRAP>

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