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  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Organiser par catégorie

    17 mai 2013, par

    Dans MédiaSPIP, une rubrique a 2 noms : catégorie et rubrique.
    Les différents documents stockés dans MédiaSPIP peuvent être rangés dans différentes catégories. On peut créer une catégorie en cliquant sur "publier une catégorie" dans le menu publier en haut à droite ( après authentification ). Une catégorie peut être rangée dans une autre catégorie aussi ce qui fait qu’on peut construire une arborescence de catégories.
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Sur d’autres sites (4622)

  • (MEncoder) How to resolve librtsp : buffer overflow in rtsp_get error ?

    14 janvier 2016, par Siva Prasanna

    I’m trying to use MEncoder to dump an RTSP stream I get. When I try to do the same, I get an error saying "librtsp : buffer overflow in rtsp_get".

    The full console output is given below.

    C:\mplayer-svn-37594>mplayer -dumpstream "rtsp://qa.vibrnet.com:80/mov/video.sav?MAC=00C0021F1116&channel=2&GUID=betauser"
    
MPlayer Redxii-SVN-r37594-4.9.3 (i686) (C) 2000-2016 MPlayer Team
    
FFmpeg version: N-77758-g6e24946
    
Build date: 2016-01-09 00:49:37 EST
    

    
Playing rtsp://qa.vibrnet.com:80/mov/video.sav?MAC=00C0021F1116&channel=2&GUID=betauser.
    
Resolving qa.vibrnet.com for AF_INET...
    
Connecting to server qa.vibrnet.com[204.x.x.x]: 80...
    

    
librtsp: buffer overflow in rtsp_get

    When I tried to play the stream, I get this error as well. What could be the reason ? Help me resolve this one. Thank you !

  • how to upload a video to google driver use paperclip or carriwave

    14 janvier 2016, par bách trần nguyên

    i want to upload video to google driver.
    code models
    video model

    class Video < ActiveRecord::Base
    
  has_attached_file :video,
    
   :storage => :google_drive,
    
   :google_drive_credentials => {:client_id => AppConfig.gg_drive.client_id,
    
                              :client_secret => AppConfig.gg_drive.client_secret,
    
                              :refresh_token => AppConfig.gg_drive.refresh_token,
    
                              :scope => AppConfig.gg_drive.scope,
    
                              :access_token => Token.cache_access_token_google_drive
    
                              },
    
  :styles => {
    
    :medium => {
    
      :geometry => "640x480",
    
      :format => 'mp4'
    
    },
    
    :thumb => { :geometry => "160x120", :format => 'jpeg', :time => 10} 
    
  },# hello 123
    
  :processors => [:transcoder],
    
  :google_drive_options => {
    
    :path => proc { |style| "#{style}_#{id}_#{image.original_filename}" },
    
    :public_folder_id => '0B0VNyOkzIwUZZFFGeVhycFk0dnc'
    
  }
    
end

    in Gemfile

    gem 'google-api-client'
    
gem 'paperclip'
    
gem 'paperclip-googledrive'
    
gem 'paperclip-av-transcoder'
    
gem "paperclip-ffmpeg"

    in controller

    def create
    
    if params[:videos]
    
      params[:videos].each { |video| Video.create(video: video) }
    
    end
    
end

    when i run , this display error

    [AV] Running command : if command -v avprobe 2>/dev/null ; then echo "true" ; else echo "false" ; fi
    [AV] Running command : if command -v ffmpeg 2>/dev/null ; then echo "true" ; else echo "false" ; fi
    Av::UnableToDetect in AlbumsController#create
    Unable to detect any supported library

    pls. how to fix this errors

  • ffmpeg : single frame from video is highly overexposed image

    9 avril 2021, par mcgregor94086

    I am using ffmpeg on a Raspberry Pi 400, attached to a camera array to capture one image from each camera.

    


    Most images generated are highly overexposed and washed out. I am trying to understand which command line options I should set to prevent this over exposure.
    
Sample grossly over exposed image

    


    Are there options I need to set for the camera to automatically set the right exposure, or some way to set the length of an exposure as opposed to just a "frame" ?

    


    Also, each image is taking about 3 to 4 seconds to capture. I just want to capture the first possible frame and that's it. Is there a set of options which would capture the image is less time ?

    


    /usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video0 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam00.jpg
Input #0, video4linux2,v4l2, from '/dev/video0':
  Duration: N/A, start: 672949.710856, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x184adb0] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam00.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=1.0 q=3.7 Lsize=N/A time=00:00:00.40 bitrate=N/A speed=0.39x    
video:37kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video0 image in: 3 seconds
linux_capture_photo_and_return_image_path( /dev/video0 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 1 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam00.jpg
1 /dev/video0: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam00.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video2 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam02.jpg
Input #0, video4linux2,v4l2, from '/dev/video2':
  Duration: N/A, start: 672958.327329, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x1d27db0] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam02.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=0.9 q=8.6 Lsize=N/A time=00:00:00.40 bitrate=N/A speed=0.374x    
video:136kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video2 image in: 4 seconds
linux_capture_photo_and_return_image_path( /dev/video2 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 2 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam02.jpg
2 /dev/video2: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam02.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video4 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam04.jpg
Input #0, video4linux2,v4l2, from '/dev/video4':
  Duration: N/A, start: 672963.021864, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x10bedb0] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam04.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=1.0 q=3.7 Lsize=N/A time=00:00:00.40 bitrate=N/A speed=0.389x    
video:42kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video4 image in: 4 seconds
linux_capture_photo_and_return_image_path( /dev/video4 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 3 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam04.jpg
3 /dev/video4: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam04.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video6 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam06.jpg
Input #0, video4linux2,v4l2, from '/dev/video6':
  Duration: N/A, start: 672967.663385, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x24e4db0] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam06.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=0.9 q=8.2 Lsize=N/A time=00:00:00.40 bitrate=N/A speed=0.352x    
video:126kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video6 image in: 4 seconds
linux_capture_photo_and_return_image_path( /dev/video6 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 4 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam06.jpg
4 /dev/video6: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam06.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video8 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam08.jpg
Input #0, video4linux2,v4l2, from '/dev/video8':
  Duration: N/A, start: 672972.189025, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x13fadb0] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam08.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=0.9 q=9.1 Lsize=N/A time=00:00:00.40 bitrate=N/A speed=0.352x    
video:154kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video8 image in: 3 seconds
linux_capture_photo_and_return_image_path( /dev/video8 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 5 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam08.jpg
5 /dev/video8: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam08.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video17 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam17.jpg
Input #0, video4linux2,v4l2, from '/dev/video17':
  Duration: N/A, start: 672976.730667, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0xae6e20] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam17.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=0.9 q=8.7 Lsize=N/A time=00:00:00.40 bitrate=N/A speed=0.353x    
video:164kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video17 image in: 4 seconds
linux_capture_photo_and_return_image_path( /dev/video17 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 6 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam17.jpg
6 /dev/video17: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam17.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video19 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam19.jpg
Input #0, video4linux2,v4l2, from '/dev/video19':
  Duration: N/A, start: 672981.425451, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x15a7e20] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam19.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=1.0 q=3.2 Lsize=N/A time=00:00:00.40 bitrate=N/A speed=0.391x    
video:40kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video19 image in: 4 seconds
linux_capture_photo_and_return_image_path( /dev/video19 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 7 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam19.jpg
7 /dev/video19: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam19.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video21 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam21.jpg
Input #0, video4linux2,v4l2, from '/dev/video21':
  Duration: N/A, start: 672986.050603, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x1722e20] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam21.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=1.0 q=7.8 Lsize=N/A time=00:00:00.40 bitrate=N/A speed=0.388x    
video:119kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video21 image in: 4 seconds
linux_capture_photo_and_return_image_path( /dev/video21 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 8 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam21.jpg
8 /dev/video21: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam21.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video23 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam23.jpg
Input #0, video4linux2,v4l2, from '/dev/video23':
  Duration: N/A, start: 672990.712888, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x19f4e20] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam23.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=1.0 q=3.4 Lsize=N/A time=00:00:00.40 bitrate=N/A speed=0.389x    
video:42kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video23 image in: 4 seconds
linux_capture_photo_and_return_image_path( /dev/video23 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 9 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam23.jpg
9 /dev/video23: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam23.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video25 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam25.jpg
Input #0, video4linux2,v4l2, from '/dev/video25':
  Duration: N/A, start: 672995.359539, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x9d7e20] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam25.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=0.9 q=8.4 Lsize=N/A time=00:00:00.40 bitrate=N/A speed=0.369x    
video:146kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video25 image in: 4 seconds
linux_capture_photo_and_return_image_path( /dev/video25 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 10 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam25.jpg
10 /dev/video25: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam25.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video27 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam27.jpg
Input #0, video4linux2,v4l2, from '/dev/video27':
  Duration: N/A, start: 673000.069328, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x1f90e20] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam27.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=1.0 q=3.9 Lsize=N/A time=00:00:00.40 bitrate=N/A speed=0.382x    
video:135kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video27 image in: 4 seconds
linux_capture_photo_and_return_image_path( /dev/video27 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 11 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam27.jpg
11 /dev/video27: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam27.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video29 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam29.jpg
Input #0, video4linux2,v4l2, from '/dev/video29':
  Duration: N/A, start: 673004.676618, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x22dde20] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam29.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=1.0 q=9.3 Lsize=N/A time=00:00:00.40 bitrate=N/A speed=0.385x    
video:165kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video29 image in: 4 seconds
linux_capture_photo_and_return_image_path( /dev/video29 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 12 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam29.jpg
12 /dev/video29: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam29.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video31 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam31.jpg
Input #0, video4linux2,v4l2, from '/dev/video31':
  Duration: N/A, start: 673009.555417, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x22f5e20] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam31.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=0.8 q=8.6 Lsize=N/A time=00:00:00.40 bitrate=N/A speed=0.335x    
video:141kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video31 image in: 4 seconds
linux_capture_photo_and_return_image_path( /dev/video31 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 13 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam31.jpg
13 /dev/video31: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam31.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video33 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam33.jpg
Input #0, video4linux2,v4l2, from '/dev/video33':
  Duration: N/A, start: 673014.171570, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x6d4e20] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam33.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=0.9 q=9.7 Lsize=N/A time=00:00:00.20 bitrate=N/A speed=0.172x    
video:156kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video33 image in: 3 seconds
linux_capture_photo_and_return_image_path( /dev/video33 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 14 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam33.jpg
14 /dev/video33: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam33.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video35 -frames:v 1 -f image2 /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam35.jpg
Input #0, video4linux2,v4l2, from '/dev/video35':
  Duration: N/A, start: 673018.565769, bitrate: 165888 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080, 165888 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x1667e20] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam35.jpg':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 1920x1080, q=2-31, 200 kb/s, 5 fps, 5 tbn, 5 tbc
    Metadata:
      encoder         : Lavc58.35.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    1 fps=0.8 q=9.8 Lsize=N/A time=00:00:00.20 bitrate=N/A speed=0.167x    
video:148kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Captured /dev/video35 image in: 3 seconds
linux_capture_photo_and_return_image_path( /dev/video35 , /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/ , 15 ) RETURNS /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam35.jpg
15 /dev/video35: /var/www/html/sonascan/data/scans/10000000e1f45394/20210405184504/SonaCam35.jpg
/usr/bin/ffmpeg -y -hide_banner -ss 0:0:0 -r 15 -s 1920x1080 -f video4linux2 -i /dev/video37 -frames:v 1 -f image2



    


    $ v4l2-ctl --all
Driver Info:
    Driver name      : uvcvideo
    Card type        : FHD Camera: FHD Camera
    Bus info         : usb-0000:01:00.0-1.2.1.1
    Driver version   : 5.10.17
    Capabilities     : 0x84a00001
        Video Capture
        Metadata Capture
        Streaming
        Extended Pix Format
        Device Capabilities
    Device Caps      : 0x04200001
        Video Capture
        Streaming
        Extended Pix Format
Media Driver Info:
    Driver name      : uvcvideo
    Model            : FHD Camera: FHD Camera
    Serial           : 
    Bus info         : usb-0000:01:00.0-1.2.1.1
    Media version    : 5.10.17
    Hardware revision: 0x00000001 (1)
    Driver version   : 5.10.17
Interface Info:
    ID               : 0x03000002
    Type             : V4L Video
Entity Info:
    ID               : 0x00000001 (1)
    Name             : FHD Camera: FHD Camera
    Function         : V4L2 I/O
    Flags         : default
    Pad 0x01000007   : 0: Sink
      Link 0x02000013: from remote pad 0x100000a of entity 'Extension 4': Data, Enabled, Immutable
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
    Width/Height      : 1920/1080
    Pixel Format      : 'YUYV' (YUYV 4:2:2)
    Field             : None
    Bytes per Line    : 3840
    Size Image        : 4147200
    Colorspace        : sRGB
    Transfer Function : Rec. 709
    YCbCr/HSV Encoding: ITU-R 601
    Quantization      : Default (maps to Limited Range)
    Flags             : 
Crop Capability Video Capture:
    Bounds      : Left 0, Top 0, Width 1920, Height 1080
    Default     : Left 0, Top 0, Width 1920, Height 1080
    Pixel Aspect: 1/1
Selection: crop_default, Left 0, Top 0, Width 1920, Height 1080, Flags: 
Selection: crop_bounds, Left 0, Top 0, Width 1920, Height 1080, Flags: 
Streaming Parameters Video Capture:
    Capabilities     : timeperframe
    Frames per second: 5.000 (5/1)
    Read buffers     : 0
                     brightness 0x00980900 (int)    : min=0 max=255 step=1 default=128 value=128
                       contrast 0x00980901 (int)    : min=0 max=255 step=1 default=30 value=30
                     saturation 0x00980902 (int)    : min=0 max=100 step=1 default=64 value=64
                            hue 0x00980903 (int)    : min=-180 max=180 step=1 default=0 value=0
 white_balance_temperature_auto 0x0098090c (bool)   : default=1 value=1
                          gamma 0x00980910 (int)    : min=90 max=150 step=1 default=120 value=120
                           gain 0x00980913 (int)    : min=4 max=8 step=1 default=5 value=5
           power_line_frequency 0x00980918 (menu)   : min=0 max=2 default=1 value=1
      white_balance_temperature 0x0098091a (int)    : min=2800 max=6500 step=1 default=4000 value=4000 flags=inactive
                      sharpness 0x0098091b (int)    : min=0 max=7 step=1 default=2 value=2
         backlight_compensation 0x0098091c (int)    : min=0 max=2 step=1 default=2 value=2
                  exposure_auto 0x009a0901 (menu)   : min=0 max=3 default=3 value=3
              exposure_absolute 0x009a0902 (int)    : min=9 max=2500 step=1 default=123 value=123 flags=inactive
error 22 getting ext_ctrl Exposure, Auto Priority


    


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