Debian Desktop 系统使用

基础信息

• 用户密码

user: linaro
passwd: linaro

使用示例

视频硬件编解码

• 使用Qt的multimedia播放视频

$ sudo test_dec-qt.sh arm64

• 使用gstreamer播放视频

$ sudo test_dec-gst.sh

• 播放4K视频

$ gst-launch-1.0 playbin uri=file:///home/linaro/4k.mp4

• 列出一些gstreamer命令

$ gst-launch-1.0 playbin uri=file:///usr/local/test.mp4
$ gst-launch-1.0 uridecodebin uri=file:///usr/local/test.mp4 ! xvimagesink
$ gst-launch-1.0 uridecodebin uri=file:///usr/local/test.mp4 ! rkximagesink
$ gst-launch-1.0 filesrc location=/usr/local/test.mp4 ! queue ! qtdemux  name=dmux dmux.video_0 ! queue ! h264parse ! mppvideodec ! rkximagesink dmux.audio_0 ! queue ! aacparse ! faad ! autoaudiosink
$ gst-inspect-1.0 rkximagesink
  # 查看插件信息
$ gst-discoverer-1.0 /usr/local/test.mp4
  # 查看视频信息

OpenGL-ES

• 执行测试脚本

$ sudo test_glmark2_normal.sh

WebGL

• 打开chromium浏览器，在地址栏输入 chrome://gpu 查看硬件加速相关信息

• 打开chromium浏览器，在地址栏输入 https://ltsa.sheridancollege.ca/apps/vettech/test_webgl.html 测试WebGL

OpenCL

• 安装并运行clinfo，查看OpenCL相关信息

$ sudo apt-get install -f -y clinfo
$ clinfo
Number of platforms                               1
  Platform Name                                   ARM Platform
  Platform Vendor                                 ARM
  Platform Version                                OpenCL 1.2 v1.r14p0-01rel0-git(a79caef).8ddfd7584149d9238dced4e406610de7
  Platform Profile                                FULL_PROFILE
  Platform Extensions                             cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addy
  Platform Extensions function suffix             ARM

  Platform Name                                   ARM Platform
Number of devices                                 1
  Device Name                                     Mali-T860
  Device Vendor                                   ARM
  Device Vendor ID                                0x8602000
  Device Version                                  OpenCL 1.2 v1.r14p0-01rel0-git(a79caef).8ddfd7584149d9238dced4e406610de7
  Driver Version                                  1.2
  Device OpenCL C Version                         OpenCL C 1.2 v1.r14p0-01rel0-git(a79caef).8ddfd7584149d9238dced4e406610de7
  Device Type                                     GPU
  Device Profile                                  FULL_PROFILE
  Max compute units                               4
  Max clock frequency                             800MHz
  Device Partition                                (core)
    Max number of sub-devices                     0
    Supported partition types                     None
  Max work item dimensions                        3
  Max work item sizes                             256x256x256
  Max work group size                             256
...