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products:sbc:vim4:applications:hardware-decoding

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products:sbc:vim4:applications:hardware-decoding [2023/01/30 22:56]
nick 		products:sbc:vim4:applications:hardware-decoding [2024/09/13 02:57] (current)
nick
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 ===== Introduction ===== ===== Introduction =====
  
-This page introduces how to use hardware decoding on VIM4.+This page introduces how to use hardware decoding.
  
  
 <WRAP important > <WRAP important >
-Only supoport Amlgoic 5.4 Kernel.+Only supoport Amlgoic 5.4/5.15 Kernel.
 </WRAP> </WRAP>
  
Line 20: Line 20:
  
 ```shell ```shell
-gst-launch-1.0 filesrc location=/home/khadas/bbb_sunflower_1080p_60fps_normal.mp4 ! qtdemux name=d d.video_0 ! h264parse ! v4l2h264dec capture-io-mode=0 ! video/x-raw,format=NV12 ! amlvenc ! h264parse ! filesink location=/home/khadas/h264dec.h264 +gst-launch-1.0 filesrc location=/home/khadas/bbb_sunflower_1080p_60fps_normal.mp4 ! qtdemux name=d d.video_0 ! h264parse ! v4l2h264dec ! video/x-raw,format=NV12 ! amlvenc ! h264parse ! filesink location=/home/khadas/h264dec.h264
-``` +
- +
-Another example to decode video from USB camera and encode to H264: +
- +
-```shell +
-gst-launch-1.0 v4l2src device=/dev/video0 io-mode=mmap num-buffers=300 ! image/jpeg,width=1920,height=1080,framerate=30/1 ! jpegdec ! amlvenc ! h264parse ! filesink location=test_0.h264+
 ``` ```
  
 ===== H265 Hardware Decoding  ===== ===== H265 Hardware Decoding  =====
  
-Here is an example to decode H264 file to NV12 and then encode to H264.+Here is an example to decode H265 file to NV12 and then encode to H265.
  
 Decoding & encoding: Decoding & encoding:
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 ```shell ```shell
-gst-launch-1.0 filesrc location=/home/khadas/bbb_sunflower_1080p_60fps_normal.mp4 ! qtdemux name=d d.video_0 ! h264parse ! v4l2h264dec capture-io-mode=0 ! video/x-raw,format=NV12 ! amlvenc ! h265parse ! filesink location=/home/khadas/h264dec.h265+gst-launch-1.0 filesrc location=/home/khadas/4K_6.1_2012.mkv ! matroskademux name=demux demux. ! h265parse ! v4l2h265dec ! video/x-raw,format=NV12 ! amlvenc ! h265parse ! filesink location=/home/khadas/h265dec.h265
 ``` ```
  
-Another example to decode video from USB camera and encode to H265:+===== MJPEG Hardware Decoding  ===== 
 + 
 +An example to decode video from USB camera and encode to H264:
  
 ```shell ```shell
-gst-launch-1.0 v4l2src device=/dev/video0 io-mode=mmap num-buffers=300 ! image/jpeg,width=1920,height=1080,framerate=30/1 ! jpegdec ! amlvenc ! h265parse ! filesink location=test_0.h265+gst-launch-1.0 v4l2src device=/dev/video0 io-mode=mmap num-buffers=300 ! image/jpeg,width=1280,height=720,framerate=30/1 ! jpegdec ! amlvenc ! h264parse ! filesink location=test_0.h264
 ``` ```
 +
Last modified: 2023/01/30 22:56 by nick

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