'분류 전체보기' 카테고리의 글 목록 (231 Page)

'잡동사니'에 해당되는 글 13155건

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초복 (0)	2021.07.11
은하수 (0)	2020.09.20
별이 쏟아지네 (0)	2020.09.19

$ gst-launch-1.0 -vvvv v4l2src ! videoscale ! video/x-raw, format=I420, width=1280, height=720, framerate=30/1 ! imxvpuenc_h264 bitrate=10000 ! filesink location=/tmp/720.mp4
New clock: GstSystemClock

/GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = video/x-raw, format=(string)I420, width=(int)1280, height=(int)720, framerate=(fraction)30/1, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
/GstPipeline:pipeline0/GstVideoScale:videoscale0.GstPad:src: caps = video/x-raw, format=(string)I420, width=(int)1280, height=(int)720, framerate=(fraction)30/1, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = video/x-raw, format=(string)I420, width=(int)1280, height=(int)720, framerate=(fraction)30/1, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
[INFO] ringBufferEnable 0, chromaInterleave 0, mapType 0, linear2TiledEnable 1
/GstPipeline:pipeline0/GstImxVpuEncoderH264:imxvpuencoderh264-0.GstPad:sink: caps = video/x-raw, format=(string)I420, width=(int)1280, height=(int)720, framerate=(fraction)30/1, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = video/x-raw, format=(string)I420, width=(int)1280, height=(int)720, framerate=(fraction)30/1, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
/GstPipeline:pipeline0/GstVideoScale:videoscale0.GstPad:sink: caps = video/x-raw, format=(string)I420, width=(int)1280, height=(int)720, framerate=(fraction)30/1, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
/GstPipeline:pipeline0/GstImxVpuEncoderH264:imxvpuencoderh264-0.GstPad:src: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, parsed=(boolean)true, width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, chroma-site=(string)mpeg2
/GstPipeline:pipeline0/GstFileSink:filesink0.GstPad:sink: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, parsed=(boolean)true, width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, chroma-site=(string)mpeg2

$ gst-launch-1.0 -vvvv v4l2src ! videoscale ! video/x-raw, format=I420, width=800, height=480, framerate=15/1 ! imxvpuenc_h264 bitrate=10000 ! filesink location=/tmp/480.mp4
New clock: GstSystemClock
/GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = video/x-raw, format=(string)I420, width=(int)800, height=(int)480, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
/GstPipeline:pipeline0/GstVideoScale:videoscale0.GstPad:src: caps = video/x-raw, format=(string)I420, width=(int)800, height=(int)480, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = video/x-raw, format=(string)I420, width=(int)800, height=(int)480, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
[INFO] ringBufferEnable 0, chromaInterleave 0, mapType 0, linear2TiledEnable 1
/GstPipeline:pipeline0/GstImxVpuEncoderH264:imxvpuencoderh264-0.GstPad:sink: caps = video/x-raw, format=(string)I420, width=(int)800, height=(int)480, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = video/x-raw, format=(string)I420, width=(int)800, height=(int)480, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
/GstPipeline:pipeline0/GstVideoScale:videoscale0.GstPad:sink: caps = video/x-raw, format=(string)I420, width=(int)800, height=(int)480, framerate=(fraction)15/1, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
/GstPipeline:pipeline0/GstImxVpuEncoderH264:imxvpuencoderh264-0.GstPad:src: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, parsed=(boolean)true, width=(int)800, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)15/1, interlace-mode=(string)progressive, colorimetry=(string)bt601, chroma-site=(string)jpeg
/GstPipeline:pipeline0/GstFileSink:filesink0.GstPad:sink: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, parsed=(boolean)true, width=(int)800, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)15/1, interlace-mode=(string)progressive, colorimetry=(string)bt601, chroma-site=(string)jpeg

[링크 : https://community.nxp.com/t5/i-MX-Processors/Encode-problem-with-imxvpuenc-h264/m-p/513557]

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해피빈 기부 룰렛

역시 내 인생..

이번생은 역시 운빨 제로 ㅠㅠ

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회사에 남는 부품으로 쓱쓱

흐음.. 역시 장비가 좋아야 해...

(대충 인두기를 사고 싶다라는 이야기)

ESP32-CAM에는 AMS1117 이라는 놈이 달려있는데

연구소에 있는 부품중에 1117로 검색해보니 IL1117C-3.3 뿐이라고 해서

핀 호환되는지 보니 일단 okay

[링크 : https://www.alldatasheet.co.kr/datasheet-pdf/pdf_kor/259210/IKSEMICON/IL1117-3.3.html]

에잇 날려먹으면 새로 사지! 라는 마음에 했는데 오오 작동된다!! 만세!!

(근데 먼가 지르려고 잔뜩 장바구니 넣었는데 살 이유가 사라졌...)

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무한회전 서보모터?

SG90 서보라고 해서 구매했는데 무한으로 돌고 있어서

서보형 모터인줄 알았는데 이런 비밀이!!

일단은 내일 출근하면 서보 구경시켜 달래서

옆에 가변저항이 있는지 봐야겠다 -ㅁ-

[링크 : https://blog.naver.com/roboholic84/221897025161]

[링크 : http://itempage3.auction.co.kr/DetailView.aspx?itemno=B497520396] SG-90 무한회전 서보 4110 비싸!

[링크 : http://itempage3.auction.co.kr/DetailView.aspx?itemno=B478930933] SG-90 서보 1800

+

2021.07.14

이거.. 모양만 서보지 실은 기어드 모터 아님?!?!

SG90 모터의 무한회전 버전입니다.
일반 각도 지정 서보모터와 다르게 입력 값에 따라 정/역회전 및 속도가 변화합니다.
90도에서 멀어질수록 회전 속도가 빨라지는 특성을 가집니다.

[링크 : https://www.eleparts.co.kr/goods/view?no=8171464]

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AMS1117 LDO 고장?

esp32-cam 부팅이 안되서 확인해보니

계속 brown out detected -_-

레귤레이터 찍어보니 3.3V가 나와야 하는데 2.6V가 나오네

5V to 3.3V 레귤레이터를 좀 사둬야 하나...

그나저나 5V에서 3.3V면 1.7V 강하인데 2.6V 면은 2.4V 강하인데

머가 이상이 생겨서 더 떨어진걸까?

처음살때 찍은건데, LDO 에 흠집이 없어 보이는데

AMS1117의 S아래에 점 같은 손상흔적

열때문에 터진건가..

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ubuntu 무선 미러링

일단 내 노트북은 2세대라서 그런가.. 일단 실패 ㅠㅠ

$ flatpak install org.gnome.NetworkDisplays.flatpakref

Note that the directories

'/var/lib/flatpak/exports/share'
'/home/minimonk/.local/share/flatpak/exports/share'

are not in the search path set by the XDG_DATA_DIRS environment variable, so
applications installed by Flatpak may not appear on your desktop until the
session is restarted.

The remote 'flathub', referred to by 'org.gnome.NetworkDisplays' at location https://dl.flathub.org/repo/ contains additional applications.
Should the remote be kept for future installations? [Y/n]:
Required runtime for org.gnome.NetworkDisplays/x86_64/stable (runtime/org.gnome.Platform/x86_64/40) found in remote flathub
Do you want to install it? [Y/n]:

org.gnome.NetworkDisplays permissions:
    ipc                        network     fallback-x11       pulseaudio
    wayland                    x11         file access [1]    dbus access [2]
    system dbus access [3]

    [1] xdg-run/gvfs, xdg-run/gvfsd
    [2] org.a11y.Bus, org.gtk.vfs, org.gtk.vfs.*
        ID                                              Branch            Op           Remote            Download
1. [—] org.freedesktop.Platform.GL.default             20.08             i            flathub              73.2 MB / 106.4 MB
2. [ ] org.freedesktop.Platform.VAAPI.Intel            20.08             i            flathub            < 11.6 MB
3. [ ] org.freedesktop.Platform.openh264               2.0               i            flathub             < 1.5 MB
4. [ ] org.gnome.NetworkDisplays.Locale                stable            i            flathub             < 2.3 MB (partial)
5. [ ] org.gnome.Platform.Locale                       40                i            flathub           < 333.7 MB (partial)
6. [ ] org.gtk.Gtk3theme.Yaru                          3.22              i            flathub           < 226.2 kB
7. [ ] org.gnome.Platform                              40                i            flathub           < 363.7 MB
8. [ ] org.gnome.NetworkDisplays                       stable            i            flathub             < 5.0 MB

Installing 8/8… ████████████████████ 100%  759.4 kB/s  00:00

$ flatpak run org.gnome.NetworkDisplays

Note that the directories

'/var/lib/flatpak/exports/share'
'/home/minimonk/.local/share/flatpak/exports/share'

are not in the search path set by the XDG_DATA_DIRS environment variable, so
applications installed by Flatpak may not appear on your desktop until the
session is restarted.

Gtk-Message: 18:31:41.762: Failed to load module "canberra-gtk-module"
Gtk-Message: 18:31:41.763: Failed to load module "canberra-gtk-module"

** (gnome-network-displays:2): WARNING **: 18:31:42.615: Error calling DBus method during Screencast portal initialization: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.freedesktop.portal.ScreenCast” on object at path /org/freedesktop/portal/desktop

** (gnome-network-displays:2): WARNING **: 18:31:42.615: Error initing screencast portal: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.freedesktop.portal.ScreenCast” on object at path /org/freedesktop/portal/desktop

** (gnome-network-displays:2): WARNING **: 18:31:42.615: Screencasting portal is unavailable! It is required to select the monitor to stream!

** (gnome-network-displays:2): WARNING **: 18:31:42.615: Falling back to X11! You need to fix your setup to avoid issues (XDG Portals and/or mutter screencasting support)!

[링크 : https://askubuntu.com/questions/1017249/samsung-tv-mirror-screen]

근데 내 노트북이 요구사항이 되나?

반대로.. 굳이 저런 요구사항이 필요로 되는 이유가 멀까?

[링크 : https://www.intel.co.kr/content/www/kr/ko/support/articles/000014932/emerging-technologies.html]

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[링크 : https://gstreamer.freedesktop.org/documentation/videotestsrc/index.html?gi-language=c]

[링크 : https://gstreamer.freedesktop.org/documentation/videocrop/videocrop.html?gi-language=c#videocrop]

[링크 : https://gstreamer.freedesktop.org/documentation/videoscale/index.html?gi-language=c]

[링크 : https://gstreamer.freedesktop.org/documentation/autodetect/autovideosink.html?gi-language=c]

[링크 : https://gstreamer.freedesktop.org/documentation/videobox/index.html?gi-language=c]

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킥보드 득템

아앗.. 무게제한 ㅠㅠ

[링크 : https://microscooters.co.kr/goods/goods_view.php?goodsNo=724]

+

일단 똥개 산책용이니.. 육아? ㅋㅋㅋ

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gstreamer 용어

MAN page 발췌

NAME
       gst-launch-1.0 - build and run a GStreamer pipeline

SYNOPSIS
       gst-launch-1.0 [OPTION...] PIPELINE-DESCRIPTION

DESCRIPTION
       gst-launch-1.0 is a tool that builds and runs basic GStreamer pipelines.

       In simple form, a PIPELINE-DESCRIPTION is a list of elements separated by exclamation marks (!). Properties may be appended to elements, in the form property=value.

       For a complete description of possible PIPELINE-DESCRIPTIONS see the section pipeline description below or consult the GStreamer documentation.

       Please  note  that gst-launch-1.0 is primarily a debugging tool for developers and users. You should not build applications on top of it. For applications, use the gst_parse_launch() function of the GStreamer API as an easy way to construct pipe‐
       lines from pipeline descriptions.

PIPELINE DESCRIPTION
       A pipeline consists elements and links. Elements can be put into bins of different sorts. Elements, links and bins can be specified in a pipeline description in any order.

       Elements

       ELEMENTTYPE [PROPERTY1 ...]

       Creates an element of type ELEMENTTYPE and sets the PROPERTIES.

       Properties

       PROPERTY=VALUE ...

       Sets the property to the specified value. You can use gst-inspect-1.0(1) to find out about properties and allowed values of different elements.
       Enumeration properties can be set by name, nick or value.

       Bins

       [BINTYPE.] ( [PROPERTY1 ...] PIPELINE-DESCRIPTION )

       Specifies that a bin of type BINTYPE is created and the given properties are set. Every element between the braces is put into the bin. Please note the dot that has to be used after the BINTYPE. You will almost never need this  functionality,  it
       is only really useful for applications using the gst_launch_parse() API with 'bin' as bintype. That way it is possible to build partial pipelines instead of a full-fledged top-level pipeline.

       Links

       [[SRCELEMENT].[PAD1,...]] ! [[SINKELEMENT].[PAD1,...]]  [[SRCELEMENT].[PAD1,...]] ! CAPS ! [[SINKELEMENT].[PAD1,...]]  [[SRCELEMENT].[PAD1,...]] : [[SINKELEMENT].[PAD1,...]]  [[SRCELEMENT].[PAD1,...]] : CAPS : [[SINKELEMENT].[PAD1,...]]

       Links  the  element  with name SRCELEMENT to the element with name SINKELEMENT, using the caps specified in CAPS as a filter.  Names can be set on elements with the name property. If the name is omitted, the element that was specified directly in
       front of or after the link is used. This works across bins. If a padname is given, the link is done with these pads. If no pad names are given all possibilities are tried and a matching pad is used.  If multiple padnames  are  given,  both  sides
       must have the same number of pads specified and multiple links are done in the given order.
       So the simplest link is a simple exclamation mark, that links the element to the left of it to the element right of it.
       Linking using the : operator attempts to link all possible pads between the elements

       Caps

       MEDIATYPE [, PROPERTY[, PROPERTY ...]]] [; CAPS[; CAPS ...]]

       Creates a capability with the given media type and optionally with given properties. The media type can be escaped using " or '.  If you want to chain caps, you can add more caps in the same format afterwards.

       Properties

       NAME=[(TYPE)]VALUE
       in lists and ranges: [(TYPE)]VALUE

       Sets the requested property in capabilities. The name is an alphanumeric value and the type can have the following case-insensitive values:
       - i or int for integer values or ranges
       - f or float for float values or ranges
       - b, bool or boolean for boolean values
       - s, str or string for strings
       - fraction for fractions (framerate, pixel-aspect-ratio)
       - l or list for lists
       If no type was given, the following order is tried: integer, float, boolean, string.
       Integer values must be parsable by strtol(), floats by strtod(). FOURCC values may either be integers or strings. Boolean values are (case insensitive) yes, no, true or false and may like strings be escaped with " or '.
       Ranges are in this format:  [ VALUE, VALUE ]
       Lists use this format:      { VALUE [, VALUE ...] }

PIPELINE EXAMPLES
       The  examples  below  assume  that  you have the correct plug-ins available.  In general, "pulsesink" can be substituted with another audio output plug-in such as "alsasink" or "osxaudiosink" Likewise, "xvimagesink" can be substituted with "xima‐
       gesink", "glimagesink", or "osxvideosink". Keep in mind though that different sinks might accept different formats and even the same sink might accept different formats on different machines, so you might  need  to  add  converter  elements  like
       audioconvert and audioresample (for audio) or videoconvert (for video) in front of the sink to make things work.

       Audio playback

       Play the mp3 music file "music.mp3" using a libmpg123-based plug-in and output to an Pulseaudio device
               gst-launch-1.0 filesrc location=music.mp3 ! mpegaudioparse ! mpg123audiodec ! audioconvert ! audioresample ! pulsesink

       Play an Ogg Vorbis format file
               gst-launch-1.0 filesrc location=music.ogg ! oggdemux ! vorbisdec ! audioconvert ! audioresample ! pulsesink

       Play an mp3 file or an http stream using GIO
               gst-launch-1.0 giosrc location=music.mp3 ! mpegaudioparse ! mpg123audiodec ! audioconvert ! pulsesink
               gst-launch-1.0 giosrc location=http://domain.com/music.mp3 ! mpegaudioparse ! mpg123audiodec ! audioconvert ! audioresample ! pulsesink

       Use GIO to play an mp3 file located on an SMB server
               gst-launch-1.0 giosrc location=smb://computer/music.mp3 ! mpegaudioparse ! mpg123audiodec ! audioconvert ! audioresample ! pulsesink

       Format conversion

       Convert an mp3 music file to an Ogg Vorbis file
               gst-launch-1.0 filesrc location=music.mp3 ! mpegaudioparse ! mpg123audiodec ! audioconvert ! vorbisenc ! oggmux ! filesink location=music.ogg

       Convert to the FLAC format
               gst-launch-1.0 filesrc location=music.mp3 ! mpegaudioparse ! mpg123audiodec ! audioconvert ! flacenc ! filesink location=test.flac

[링크 : https://linux.die.net/man/1/gst-launch-0.10]

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