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• Evolution #2608 : visiteurs

  18 octobre 2017, par Fil _

  Je ne comprends pas non plus, et j’aimerais au moins que le menu disparaisse si on n’a pas de visiteurs.

• How can I remove downloaded video file after merging video and audio ?

  11 mai 2019, par Locke Jet

  I downloaded 1080p video from youtube using youtube-dl. Video file (.f137.mp4) and audio files (f140.m4a) were downloaded. Them ffmpeg merged the video file and the audio file to mp4 file(.mp4). I want to keep the .f140.m4a file and the .mp4 file, while remove the f137.mp4 file. How can I do ?

  I tried the —exec option in the youtube-dl, but it failed.

  These were my commands :

  root@OMV:~/youtube-dl# cat dl-test.sh
  
  DL_DIR="/srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007"
  
  ALBUM="Test"
  
  mkdir -p "$DL_DIR/$ALBUM"
  
  youtube-dl --batch-file  /root/youtube-dl/url-test.list --download-archive /root/youtube-dl/archive-test.list                           \
  
  -f  'bestvideo[ext=mp4]+bestaudio[ext=m4a]/bestvideo+bestaudio'                                 \
  
  --write-sub --embed-sub --all-subs                                                              \
  
  --embed-thumbnail --add-metadata                                                                \
  
  -o "$DL_DIR/$ALBUM/%(title)s.%(ext)s"                                                           \
  
  --exec "rm "$(ls {} | cut -d . -f1)""

  The result were :

  root@OMV:~/youtube-dl# ./dl-test.sh
  
  ls: cannot access '{}': No such file or directory
  
  ...
  
  [ffmpeg] Merging formats into "/srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test/UpTown Spot.mp4"
  
  ...
  
  [atomicparsley] Adding thumbnail to "/srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test/UpTown Spot.mp4"
  
  [exec] Executing command: rm  '/srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test/UpTown Spot.mp4'

  The .mp4 file was deleted, the .f137.mp4 file was still there. I got the opposite result.

  root@OMV:~/youtube-dl# ls '/srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test'
  
  UpTown Spot.f137.mp4  UpTown Spot.f140.m4a

  Update 1 :
  I changed to

  --exec "rm "$(ls {} -1 | sed -n '/\.f[0-9]*\.mp4$/p')""

  It still remove the .mp4 file. The output was :

  root@OMV:~/youtube-dl# echo "" > "/root/youtube-dl/archive-test.list"
  
  root@OMV:~/youtube-dl# ./dl-test.sh
  
  ls: cannot access '{}': No such file or directory
  
  ...
  
  [download] /srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test/UpTown Spot.mp4 has already been downloaded and merged
  
  ...
  
  [exec] Executing command: rm  '/srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test/UpTown Spot.mp4'

  Then changed it into :

  --exec "rm "$(ls -1 | sed -n '/\.f[0-9]*\.mp4$/p')""

  The ouput was almost the same :

  root@OMV:~/youtube-dl# ./dl-test.sh
  
  ...
  
  [exec] Executing command: rm  '/srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test/UpTown Spot.mp4'

  I tested the normal expression in SHELL, it worked :

  root@OMV:~/youtube-dl# cd /srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test
  
  root@OMV:/srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test# ls "$(ls  /srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test | sed -n '/\.f[0-9]*\.mp4$/p')"
  
  UpTown Spot.f137.mp4
  
  root@OMV:/srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test# rm "$(ls  /srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test | sed -n '/\.f[0-9]*\.mp4$/p')"

  But the similar command running in the youtube-dl —exec option failed !

  Update 2 :
  It seemed that the cmd after pipeline would not be executed.

  root@OMV:~/youtube-dl# ./dl-test.sh
  
  + DL_DIR=/srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007
  
  + ALBUM=Test
  
  + mkdir -p /srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test
  
  + youtube-dl --batch-file /root/youtube-dl/url-test.list --download-archive /root/youtube-dl/archive-test.list -f 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/bestvideo+bestaudio' --write-sub --embed-sub --all-subs --embed-thumbnail --add-metadata -o '/srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test/%(title)s.%(ext)s' --exec 'ls | grep mp4'
  
  ...
  
  [exec] Executing command: ls | grep mp4 '/srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test/UpTown Spot.mp4'
  
  Binary file /srv/dev-disk-by-id-ata-QEMU_HARDDISK_QM00007/Test/UpTown Spot.mp4 matches
  
  ls: write error: Broken pipe

• Bash : sort find results using part of a filename

  13 novembre 2015, par utt50

  I have 3 webcams set up in a building, uploading still images to a webserver. I’m using ffmpeg to encode the jpgs to mp4 video.

  The directories are set up like this :

  Cam1/201504
  
  Cam1/201505
  
  Cam2/201504
  
  Cam2/201505
  
  Cam3/201504
  
  Cam3/201505

  I’m using the following bash loop/ffmpeg parameters to make one video per camera, per year. This works well so far (well... except that my SSD is rapidly degrading in performance - too many simultaneous read/write operations ?) :

  find Cam2/2013* -name "*.jpg" -print0 | xargs -0 cat | ffmpeg -f image2pipe -framerate 30 -vcodec mjpeg -i - -vcodec libx264 -profile:v baseline -level 3.0 -movflags +faststart -crf 19 -pix_fmt yuv420p -r 30 "Cam2-2013-30fps-19crf.mp4"

  The individual files are named like this (confusing ffmpeg’s built-in file sequencer) :

  Cam1_2015052413543201.jpg
  
  Cam1_2015052413544601.jpg
  
  Cam2_2015052413032601.jpg
  
  Cam2_2015052413544901.jpg

  I now need to create one video for an entire year across all 3 cameras, ordered by timestamp. To accomplish this, I need to sort the find results by the segment of the filename after the underscore.

  What do I pipe the find output to to accomplish this ? For example, the files above would be ordered like this :

  Cam2_2015052413032601.jpg
  
  Cam1_2015052413543201.jpg
  
  Cam1_2015052413544601.jpg
  
  Cam2_2015052413544901.jpg

  Any help is very much appreciated !