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• (Shell) Strange issue with find loop, skips characters if ffmpeg is introduced. Work around ?

  5 janvier 2023, par Nebarik

  My goal here is to write a simple shell script that finds .ogg files in a folder and then does a little ffmpeg check on them one by one. Seems simple, but I'm running into the weirdest bug where it's randomly dropping 0-5 characters from the begining of the filename causing errors.

  


  I stripped my script down and did some testing with some test files and this is what happens if it's not doing ffmpeg.

  


  find . -type f -name '*.ogg' | while read filename
do
echo "${filename}"
done


  


  ./folder/222.ogg
./folder/111.ogg
./folder/333.ogg


  


  Great, perfect, exactly what I want.

  


  Now if I add ffmpeg as a line AFTER the echo I get this :

  


  find . -type f -name '*.ogg' | while read filename
do
echo "${filename}"
ffmpeg -v error -i "${filename}" -f null - 2>${location}/fferror.log
done


  


  ./folder/222.ogg
older/111.ogg
folder/333.ogg


  


  Some extra testing shows the ffmpeg is getting the messed up filename variables. So it must be the find that's acting different after running ffmpeg. With only 3 files it doesnt seem serious, but I intend to run this on many many files. It's chaos.

  


  Has anyone encountered something like this before ? I've tried adding sleep lines everywhere to troubleshoot, no change (also unsustainable for how many files i have). Any ideas to counter act this strange behaviour and get a clean filename everytime ?

  


• How to debug GitHub Action failure

  9 décembre 2022, par Meltemi

  Just yesterday a stable GitHub Action (CI) started failing rather cryptically and I've run out of tools to debug it.

  


  All I can think of is our BUNDLE_ACCESS_TOKEN went bad somehow but I didn't set that up. It's an Action secret under Repository Secrets that are not visible in GitHub UI. How can I test to see if it's valid ?

  


  Or maybe it's something else ?!? "Bad credentials" is vague...

  


  Here's the meat of the action we're trying to run :

  


  #my_tests.yml
jobs:
  my-test:
    runs-on: ubuntu-latest
    services:
      postgres:
        image: postgres:13.4
        env:
          POSTGRES_USERNAME: postgres
          POSTGRES_PASSWORD: postgres
          POSTGRES_DB: myapp_test
        ports:
          - 5432:5432
        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
    env:
      RAILS_ENV: test
      POSTGRES_HOST: localhost
      POSTGRES_USERNAME: pg
      POSTGRES_PASSWORD: pg
      GITHUB_TOKEN: ${{ secrets.BUNDLE_ACCESS_TOKEN }}
      BUNDLE_GITHUB__COM: x-access-token:${{ secrets.BUNDLE_ACCESS_TOKEN }}
      CUCUMBER_FORMAT: progress
    steps:
      - uses: actions/checkout@v2
      - uses: FedericoCarboni/setup-ffmpeg@v1
      ...


  


  And with debug turned on here's the Failure (line 20) from GitHub Actions :

  


  Run FedericoCarboni/setup-ffmpeg@v1

1 ------- ##[debug]Evaluating condition for step: 'Run FedericoCarboni/setup-ffmpeg@v1'
2 ##[debug]Evaluating: success()
3 ##[debug]Evaluating success:
4 ##[debug]=> true
5 ##[debug]Result: true
6 ##[debug]Starting: Run FedericoCarboni/setup-ffmpeg@v1
7 ##[debug]Loading inputs
8 ##[debug]Loading env
9 Run FedericoCarboni/setup-ffmpeg@v1
10   with:
11   env:
12     RAILS_ENV: test
13     POSTGRES_HOST: localhost
14     POSTGRES_USERNAME: pg
15     POSTGRES_PASSWORD: pg
16     GITHUB_TOKEN: ***
17     BUNDLE_GITHUB__COM: x-access-token:***
19     CUCUMBER_FORMAT: progress
20 Error: Bad credentials
21 ##[debug]Node Action run completed with exit code 1
22 ##[debug]Finishing: Run FedericoCarboni/setup-ffmpeg@v1


  


  Thanks for any help.

  


• Can this be a TC burn-in ; 993[1001(1001)1100]1108 - start frame 1001 end 1100 ; (1001) is current frame ;993 &1108 are head and tail 8 frame handles

  21 novembre 2022, par Abraham Thomas

  Need to create a Timecode overlay on videos in frames as "993[1001(1001)1100]1108"
Here -start frame is 1001 and last frame is 1100 ;
the (1001) is the current frame counter
and 993 and 1108 are head and tail handles (1001-8 and 1100+8)

  


  This is currently done in Davinci Resolve by using below text script (was helped in another forum) :
comp.RenderStart+1001-8 .. " [".. comp.RenderStart+1001 .. " (" .. time+1001 ..") " .. comp.RenderEnd +1001 .. "] " ..comp.RenderEnd +1001+8

  


  At times there are 200 + video clips requiring this ; if same can be achieved in ffmpeg this will speed up our workflow. Is this possible using a single ffmpeg command ; please help

  


  In this forum someone had posted a Timecode overlay command, which gives the current frame number ;
I've used this and this below single command works for me :

  


  ffmpeg -i inputvid.mp4 -vf "drawtext=fontfile=Arial.ttf : text='%frame_num' : start_number=1001 : x=(w-tw)/2 : y=h-(2*lh) : fontcolor=white : fontsize=55 : box=1 : boxcolor=black : boxborderw=5" -c:a copy D :\Test\outputvid.mp4

  


  Is there a way to add to this command ; the first frame and last frame of the video automatically detected by ffmpeg (I'm on windows) ;