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• avfilter/avf_showcqt : cqt_calc optimization on x86

  4 juin 2016, par Muhammad Faiz

  avfilter/avf_showcqt : cqt_calc optimization on x86
  on x86_64 :
  
          time    PSNR
  
  plain   3.303   inf
  
  SSE     1.649   107.087535
  
  SSE3    1.632   107.087535
  
  AVX     1.409   106.986771
  
  FMA3    1.265   107.108437
  on x86_32 (PSNR compared to x86_64 plain) :
  
          time    PSNR
  
  plain   7.225   103.951979
  
  SSE     1.827   105.859282
  
  SSE3    1.819   105.859282
  
  AVX     1.533   105.997661
  
  FMA3    1.384   105.885377
  FMA4 test is not available
  Reviewed-by : James Almer <jamrial@gmail.com>
  
  Signed-off-by : Muhammad Faiz <mfcc64@gmail.com>
  

  • [DH] libavfilter/avf_showcqt.c
  • [DH] libavfilter/avf_showcqt.h
  • [DH] libavfilter/x86/Makefile
  • [DH] libavfilter/x86/avf_showcqt.asm
  • [DH] libavfilter/x86/avf_showcqt_init.c

• AWS lambda SAM deploy error - Template format error : Unresolved resource dependencies

  1er juin 2022, par mozenge

  I have am trying to deploy an aws lambda function using the SAM cli. I have some layers defined in the sam template. Testing locally using sam local start-api works quite well. The but deploying using the sam deploy --guided command throws the following error
Error: Failed to create changeset for the stack: sam-app, ex: Waiter ChangeSetCreateComplete failed: Waiter encountered a terminal failure state: For expression "Status" we matched expected path: "FAILED" Status: FAILED. Reason: Template format error: Unresolved resource dependencies [arn:aws:lambda:us-west-1:338231645678:layer:ffmpeg:1] in the Resources block of the template

  


  The SAM template is as follows

  


  AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  video-processor-functions

  Functions to generate gif and thumbnail from uploaded videos
  
# More info about Globals: https://github.com/awslabs/serverless-application-model/blob/master/docs/globals.rst
Globals:
  Function:
    Timeout: 3
    Tracing: Active

Resources:
  VideoProcessorFunctions:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    Properties:
      CodeUri: src/
      Handler: app.lambdaHandler
      Runtime: nodejs14.x
      # timeout in seconds - 2 minutes
      Timeout: 120
      Layers:
        - !Ref VideoProcessorDepLayer
        - !Ref arn:aws:lambda:us-west-1:338231645678:layer:ffmpeg:1
      Architectures:
        - x86_64
      Events:
        HelloWorld:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /hello
            Method: get

  VideoProcessorDepLayer:
    Type: AWS::Serverless::LayerVersion
    Properties:
      LayerName: mh-video-processor-dependencies
      Description: Dependencies for sam app [video-processor-functions]
      ContentUri: dependencies/
      CompatibleRuntimes:
        - nodejs14.17
      LicenseInfo: 'MIT'
      RetentionPolicy: Retain

Outputs:
  # ServerlessRestApi is an implicit API created out of Events key under Serverless::Function
  # Find out more about other implicit resources you can reference within SAM
  # https://github.com/awslabs/serverless-application-model/blob/master/docs/internals/generated_resources.rst#api
  HelloWorldApi:
    Description: "API Gateway endpoint URL for Prod stage for Hello World function"
    Value: !Sub "https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/hello/"
  VideoProcessorFunctions:
    Description: "Generate GIF and Thumnail from Video"
    Value: !GetAtt VideoProcessorFunctions.Arn
  VideoProcessorFunctionsIamRole:
    Description: "Implicit IAM Role created for MH Video Processor function"
    Value: !GetAtt VideoProcessorFunctionsRole.Arn



  


  Any ideas what i'm doing wrong ?

  


• 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