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--- products:sbc:vim1s:applications:hardware-decoding [2022/07/17 21:31]
127.0.0.1 external edit
+++ products:sbc:vim1s:applications:hardware-decoding [2024/09/13 02:30] (current)
nick
@@ Line 1: / Line 1: @@
-====== VIM4 Hardware Decoding ======
+~~tag>VIM1S decoding~~
+====== VIM1S Hardware Decoding ======
+===== Introduction =====
+This page introduces how to use hardware decoding.
+<WRAP important >
+Only supoport Amlgoic 5.4/5.15 Kernel.
+</WRAP>
+===== H264 Hardware Decoding  =====
+Here is an example to decode H264 file to NV12.
+Decoding & encoding:
+```shell
+gst-launch-1.0 filesrc location=/home/khadas/bbb_sunflower_1080p_60fps_normal.mp4 num-buffers=100 ! qtdemux name=d d.video_0 ! h264parse ! v4l2h264dec ! video/x-raw,format=NV12 ! filesink location=/home/khadas/decode264.yuv
+```
+===== H265 Hardware Decoding  =====
+Here is an example to decode H265 file to NV12.
+Decoding & encoding:
+```shell
+gst-launch-1.0 filesrc location=/home/khadas/4K_6.1_2012.mkv num-buffers=100 ! matroskademux name=demux demux. ! h265parse ! v4l2h265dec ! video/x-raw,format=NV12 ! filesink location=/home/khadas/decode265.yuv
+```
+===== MJPEG Hardware Decoding  =====
+An example to decode video from USB camera:
+```shell
+gst-launch-1.0 v4l2src device=/dev/video0 io-mode=mmap num-buffers=300 ! image/jpeg,width=1280,height=720,framerate=30/1 ! jpegdec ! video/x-raw,format=I420 ! filesink location=video_0.yuv
+```

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