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• Revision 3d17f0d45f : Remove repeated vpx_integer.h from vp9_prob.h The file vpx_integer.h has been i

  1er octobre 2014, par Jingning Han

  Changed Paths :
   Modify /vp9/common/vp9_prob.h

  
  
  Remove repeated vpx_integer.h from vp9_prob.h

  The file vpx_integer.h has been included and used in the parent
  file vp9_common.h.

  Change-Id : I9c65f08353576f9ef1e5ea17244fc5ca964ec002

• AWS Lambda - FFmpeg to extract frames doesn't write anything

  7 avril 2024, par Stormsson

  I have a lambda with a ffmpeg layer on it.

  


  The command i want to use is basically

  


  ffmpeg -i video.mp4 -qscale:v 2 -vf fps=8 '%04d.jpg'


  


  so it has an input file, and creates 8 frames per second in the same folder

  


  This code seems to do everything except writing the files, what am I missing ?

  


  import ...
SIGNED_URL_TIMEOUT = 60
FPS_SAMPLES = 8

def lambda_handler(event, context):
    # Set up logging.
    logger = logging.getLogger(__name__)

    s3_client = boto3.client('s3')

    s3_source_bucket = event['Records'][0]['s3']['bucket']['name']
    s3_source_key = event['Records'][0]['s3']['object']['key']

    s3_source_basename = os.path.splitext(os.path.basename(s3_source_key))[0]

    logger.info( "bucket: %s, key: %s, basename: %s",s3_source_bucket, s3_source_key, s3_source_basename)

    s3_source_signed_url = s3_client.generate_presigned_url('get_object',
    Params={'Bucket': s3_source_bucket, 'Key': s3_source_key},
    ExpiresIn=SIGNED_URL_TIMEOUT)

    with tempfile.TemporaryDirectory() as tmpdir:
        os.chdir(tmpdir) # change the current folder to that one (current one is in     os.getcwd())
        cwd = os.getcwd()
        ffmpeg_cmd = "/opt/bin/ffmpeg -i \"" + s3_source_signed_url + "\" -qscale:v 2 -vf fps="+str(FPS_SAMPLES)+" "+ cwd + "/'%04d.jpg'"
    print("COMMAND: "+ffmpeg_cmd)
    
        command1 = shlex.split(ffmpeg_cmd)
        p1 = subprocess.run(command1, stdout=subprocess.PIPE, stderr=subprocess.PIPE)

        # List all files and directories in the current directory
        contents = os.listdir(cwd)
    
        # Print the contents
        print(f"Contents of {cwd}:")
        for item in contents:
            print(item) # <--- NOthing here...

   
return {
    'statusCode': 200,
    'body': json.dumps("bucket: %s, key: %s, basename: %s" % (s3_source_bucket, s3_source_key, s3_source_basename))
}


  


• Revision 49579 : La recherche des valeurs ne prenait pas en compte les noms de champs en ...

  13 juillet 2011, par rastapopoulos@… — Log

  La recherche des valeurs ne prenait pas en compte les noms de champs en tableau "truc[cle][etc]". Mais dans ce cas on ne sait pas construire vraiment la valeur par défaut total du vrai tableau parent donc on met un tableau vide.