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20230131_adlink_wpg
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20230131_adlink_wpg
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【Q&A】GIS / ADLINK 會議提到的 Command - HackMD @import 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[](#【QampA】GIS--ADLINK-會議提到的-Command-與詳細規格討論 "【QampA】GIS--ADLINK-會議提到的-Command-與詳細規格討論")【Q&A】GIS / ADLINK 會議提到的 Command 與詳細規格討論
===============================================================================================================================
4. GIS 請 WPI 提供 Gstreamer 的用法
* (1) ColorSpace
* YUV to RGB888 by ISI
gst-launch-1.0 v4l2src device=/dev/video3 num-buffers=10 ! \
video/x-raw,format=RGB,width=1280,height=720 ! \
videoconvert ! jpegenc ! multifilesink \
location=output%03d.jpg
* Result
root@opkiller:~# gst-launch-1.0 v4l2src device=/dev/video3 num-buffers=10 ! \
> video/x-raw,format=RGB,width=1280,height=720 ! \
> videoconvert ! jpegenc ! multifilesink \
> location=output%03d.jpg
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
[ 2093.081336] input fmt YUV4
[ 2093.084105] output fmt RGB3
Redistribute latency...
Got EOS from element "pipeline0".
Execution ended after 0:00:04.589460431
Setting pipeline to NULL ...
Freeing pipeline ..
* YUV to RGB888 by G2D
gst-launch-1.0 v4l2src device=/dev/video3 num-buffers=10 ! \
"video/x-raw,format=YUY2,width=1920,height=1080,framerate=30/1" ! \
imxvideoconvert_g2d ! video/x-raw,format=RGBA ! \
videoconvert ! jpegenc ! multifilesink location=output%03d.jpg
* Result
root@opkiller:~# gst-launch-1.0 v4l2src device=/dev/video3 num-buffers=10 ! \
> "video/x-raw,format=YUY2,width=1920,height=1080,framerate=30/1" ! \
> imxvideoconvert_g2d ! video/x-raw,format=RGBA ! \
> videoconvert ! jpegenc ! multifilesink location=output%03d.jpg
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
[ 2017.699760] bypass csc
[ 2017.702133] input fmt YUV4
[ 2017.704882] output fmt YUYV
Redistribute latency...
Got EOS from element "pipeline0".
* (2) VPU / Decoder
* Mp4 file by h264 Decoder (1920x1080@50fps)
gst-launch-1.0 filesrc location=test_1920x1080.mp4 ! qtdemux name=d d.video_0 ! queue ! h264parse ! vpudec ! queue ! waylandsink
* Result
root@opkiller:~# gst-launch-1.0 filesrc location=test_1920x1080.mp4 ! qtdemux name=d d.video_0 ! queue ! h264parse ! vpudec ! queue ! waylandsink
Setting pipeline to PAUSED ...
====== VPUDEC: 4.8.2 build on Oct 10 2023 02:31:27. ======
wrapper: 3.0.0 (VPUWRAPPER_ARM64_LINUX Build on Sep 27 2023 02:10:15)
vpulib: 1.1.1
firmware: 1.1.1.65535
Pipeline is PREROLLING ...
Redistribute latency...
Redistribute latency...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
Redistribute latency...
New clock: GstSystemClock
Got EOS from element "pipeline0".
Execution ended after 0:00:16.540737975
Setting pipeline to NULL ...
Total showed frames (828), playing for (0:00:16.540675473), fps (50.058).
Freeing pipeline ...
* (3) appsink 用法
* Github source code : [https://github.com/weilly0912/ATU\_NXP\_AI\_DEMO/blob/v11.0/TensorflowLite\_DEMO/MobileNetSSD\_ObjectDetector/app.py](https://github.com/weilly0912/ATU_NXP_AI_DEMO/blob/v11.0/TensorflowLite_DEMO/MobileNetSSD_ObjectDetector/app.py)
* 請搜尋 appsink 與 VideoCapture 兩個字串 !!
* (4) PyQt
* (1) Yocto Install
* local.conf add " IMAGE\_INSTALL\_append + = " python-pyqt5"
weilly@ubuntu_2004:/bsp/fsl-yocto-bsp-5.10.72/buildxwayland$ bitbake-layers show-recipes | grep pyqt5
python3-pyqt5:
* PS: Before BSP 5.10.72
* [Help about install python-pyqt5](https://community.nxp.com/t5/i-MX-Processors/Help-about-install-python-pyqt5/m-p/1037018)
* (2) Pip Install
* pip3 install PyQt5
root@opkiller:~# pip3 install PyQt5
Collecting PyQt5
Downloading PyQt5-5.15.10.tar.gz (3.2 MB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 3.2/3.2 MB 11.8 MB/s eta 0:00:00
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing metadata (pyproject.toml) ... error
error: subprocess-exited-with-error
× Preparing metadata (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [26 lines of output]
pyproject.toml: line 7: using '[tool.sip.metadata]' to specify the project metadata is deprecated and will be removed in SIP v7.0.0, use '[project]' instead
Traceback (most recent call last):
File "/usr/lib/python3.11/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>
main()
File "/usr/lib/python3.11/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 335, in main
json_out['return_val'] = hook(**hook_input['kwargs'])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 152, in prepare_metadata_for_build_wheel
whl_basename = backend.build_wheel(metadata_directory, config_settings)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/tmp/pip-build-env-2cbapcjt/overlay/lib/python3.11/site-packages/sipbuild/api.py", line 46, in build_wheel
project = AbstractProject.bootstrap('wheel',
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/tmp/pip-build-env-2cbapcjt/overlay/lib/python3.11/site-packages/sipbuild/abstract_project.py", line 92, in bootstrap
project.setup(pyproject, tool, tool_description)
File "/tmp/pip-build-env-2cbapcjt/overlay/lib/python3.11/site-packages/sipbuild/project.py", line 587, in setup
self.apply_user_defaults(tool)
File "/tmp/pip-install-bdooa3o7/pyqt5_dd5ae7ecc7fa40a7bb96c1fe90bea426/project.py", line 68, in apply_user_defaults
super().apply_user_defaults(tool)
File "/tmp/pip-build-env-2cbapcjt/overlay/lib/python3.11/site-packages/pyqtbuild/project.py", line 70, in apply_user_defaults
super().apply_user_defaults(tool)
File "/tmp/pip-build-env-2cbapcjt/overlay/lib/python3.11/site-packages/sipbuild/project.py", line 237, in apply_user_defaults
self.builder.apply_user_defaults(tool)
File "/tmp/pip-build-env-2cbapcjt/overlay/lib/python3.11/site-packages/pyqtbuild/builder.py", line 69, in apply_user_defaults
raise PyProjectOptionException('qmake',
sipbuild.pyproject.PyProjectOptionException
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed
× Encountered error while generating package metadata.
╰─> See above for output.
note: This is an issue with the package mentioned above, not pip.
hint: See above for details.
5. NXP Professional Service 的項目規格與驗收標準
5.1. GIS / ADLINK / WPI 探討 GIS 需要用的 Command
最後 Command 修正為
ffmpeg -hide_banner -loglevel error -c:v h264_v4l2m2m -re -i ~/Videos/xx.mp4 -f rawvideo -pix_fmt rgb24 -vf scale=64x64
ffmpeg -hide_banner -loglevel error -c:v h264_v4l2m2m -re -i /dev/video2 -f rawvideo -pix_fmt rgb24 -vf scale=64x64
5.2. 最終目標細部探討
4.2.1. GIS / ADLINK / WPI 三方討論開發在 Yocto 的 Version 為何，經過 GIS 確認 Yocto 的 Version 使用 Yocto 4.0 ( Kirkstone ) 那 kernel Version 為 5.15.52 。
5.2.2. GIS / ADLINK / WPI 三方討論 FFMpeg 的 Version，經過 GIS 確認 FFMpeg 4.4 版本可以。
5.2.3. GIS / ADLINK / WPI 三方討論此案是否一定需要 HW 加速，以及 FFMpeg Command 是否能接受使用別的參數，經過 GIS 確認此案需要 HW 加速，並且 GIS 可接受使用別的 Command 參數達到目標 ( 例如： -c h264_v4l2m2m )
補充： WPI 有提及之前 NXP Ticket Support 有提到 Codec 可以換為 h264_v4l2m2m 。
補充2：過程 ADLINK 與 WPI 也解釋由於 FFMpeg 的程式碼裡沒實做
補充2：根據討論如果有指定 -c 的話，accel 就可以不用了。
補充3：V4L2_CAP_VIDEO_CAPTURE_MPLANE 的 IOCTL 所以如要串到 i.MX8MP HW 能力需要有程式上的改動。( 這會需要 ProService 幫忙 )
5.2.4. GIS / ADLINK / WPI 三方討論 HW 加速部分只要支援 h.264 格式就好嗎? GIS 有提到因為上述架構原因 H.264 格式是必須的，那如果支援其他格式會更好。
5.2.5. GIS / ADLINK / WPI 三方討論 Command 的 Inupt ( -i ) 與 Output ( -f or -y ) 為何? ( 檔案? 或 /dev/videoX ? )
GIS 解釋 Inupt ( -i ) 的部分有多媒體檔案 ( 就是 H.264 File ) 以及 Toshiba IC 來的 Input ( 目前 ADLINK 的 Note 是 /dev/video2 ) 並且 GIS 確定 /dev/video2 需要的格式是 RGB24 ( RGB888 )
補充：針對 /dev/video2 GIS 確定解析度要 1920x1080 60fps ， bit rate 是 5Mbps ( ADLINK 也解釋當下這片板子設計是 CSI 2 Lane 頻寬不夠，所以 DEMO 30 fps，估計下一個版本的 HW 才可能支援此解析度 )
補充2：之後 GIS 也會再提供解析度清單給 ADLINK 參考。
GIS 解釋 Output 的部分 SDL 可以不用，( 當初會放這個 -f sdl "" 參數是為了方便用畫面做檢查，實際上可以不用，這是 Option 的 )。
補充：ADLINK / WPI 也有提及使用 ffplay 與 ffmpeg Command 加 SDL2 有遇到問題，經過討論 GIS 確認 SDL2 可以不必使用。
GIS 解釋輸出的格式部分要是 RGB888 ( RGB24 )，解析度的範圍在 64x64 ~ 1920x1080 之間， Frame Rate 範圍 1~30 fps。
補充： GIS 解釋可用最小的 scale 64x64 測試。
GIS 也解釋只會有 Down Scale 情境，並且希望可以透過 HW 做到 Crop Padding 的功能。 <--- 如果可以也想請 Por Service 針對 HW 的 Crop Padding 功能分別再報價。
補充：當下 GIS / ADLINK / WPI 三方有做實驗，Output 的 scale 設為 64x64 與 RGB24 CPU 使用率約37% 。
[](# "Table of content")
* [【Q&A】GIS / ADLINK 會議提到的 Command 與詳細規格討論](#【QampA】GIS--ADLINK-會議提到的-Command-與詳細規格討論 "【Q&A】GIS / ADLINK 會議提到的 Command 與詳細規格討論")
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* [【Q&A】GIS / ADLINK 會議提到的 Command 與詳細規格討論](#【QampA】GIS--ADLINK-會議提到的-Command-與詳細規格討論 "【Q&A】GIS / ADLINK 會議提到的 Command 與詳細規格討論")
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