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products:sbc:edge2:applications:hardware-decoding

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products:sbc:edge2:applications:hardware-decoding [2022/11/04 08:34]
frank 		products:sbc:edge2:applications:hardware-decoding [2025/09/09 21:26] (current)
nick
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 ===== Decoding ===== ===== Decoding =====
 +
 +<WRAP important >
 +If encounter error, please add sudo and try again.
 +</WRAP>
  
 1. Check decoder. 1. Check decoder.
Line 24: Line 28:
  
 ```shell ```shell
-khadas@Khadas:~$ gst-launch-1.0 filesrc location=./test.h264 ! h264parse ! mppvideodec ! video/x-raw,format=NV12 ! filesink location=bbb3.264+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 ... Setting pipeline to PAUSED ...
 Pipeline is PREROLLING ... Pipeline is PREROLLING ...
Line 38: Line 42:
  
 ```shell ```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=bbb3.264+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 ... Setting pipeline to PAUSED ...
 Pipeline is PREROLLING ... Pipeline is PREROLLING ...
Line 48: Line 52:
 ``` ```
  
-4. If you want to play your decoded file， you can play with ''ffpaly''.+If you want to play your decoded file， you can play with ''ffpaly''. 
 + 
 +4. 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> 
 + 
 + 
Last modified: 2022/11/04 08:34 by frank

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