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• I want to print HLS files using ffmpeg in aws lambda (python)

  14 avril 2021, par 최우선

  I implemented it through the link(https://aws.amazon.com/ko/blogs/media/processing-user-generated-content-using-aws-lambda-and-ffmpeg/) here, and it works well.

  


  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]
s3_destination_filename = s3_source_basename + ".m3u8"

s3_client = boto3.client('s3')
s3_source_signed_url = s3_client.generate_presigned_url('get_object',
    Params={'Bucket': s3_source_bucket, 'Key': s3_source_key},
    ExpiresIn=SIGNED_URL_TIMEOUT)


ffmpeg_cmd = "/opt/bin/ffmpeg -i \"" + s3_source_signed_url + "\" -codec: copy -start_number 0 -hls_time 10 -hls_list_size 0 -f hls -"
command1 = shlex.split(ffmpeg_cmd)
p1 = subprocess.run(command1, stdout=subprocess.PIPE, stderr=subprocess.PIPE)

resp = s3_client.put_object(Body=p1.stdout, Bucket=S3_DESTINATION_BUCKET, Key=s3_destination_filename)


  


  However, the actual output through ffmpeg is multiple files. For example test.m3u8, test0.ts, test1.ts .....

  


  But when I print p1.stdout, it looks like multiple files (test.m3u8,test0.ts....) are merged into one file.

  


  Is there a way to get the actual output multiple files (test.m3u8,test0.ts......) from p1.stdout ? Please help.

  


• Still can't install pygame on ubuntu

  1er octobre 2016, par brotheroflogan

  I’ve tried three different ways. The most recent was following instructions here : http://www.pygame.org/wiki/CompileUbuntu

  But when I type in the first line

  sudo apt-get install mercurial python-dev python-numpy ffmpeg \

  I am told that

  E: Package 'ffmpeg' has no installation candidate.

  I continue on with the instructions and I am later told that some of the dependencies are missing (even though those are the ones I had attempted to install moments ago).

  Then when I put in

  sudo python3 setup.py install

  it tells me

  src/_pygame.h:80:20: fatal error: Python.h: No such file or directory
  
   #include 
  
                      ^
  
  compilation terminated.
  
  error: command 'i686-linux-gnu-gcc' failed with exit status 1

• ffmpeg concatenation of live streams with different codecs

  14 mai 2015, par ashishgupta_mca

  Great information is given on https://trac.ffmpeg.org/wiki/Concatenate of how to concat two files of different codecs and I tried option "Concat filter" for two files and it works as expected.

  I wish to have the concatenation of live streams from two webcams on timely basis. E.g. first camera live stream will be shown for 60 sec and then second camera live stream for 60 sec and then again first camera live stream for 60 sec.... Process continues

  This is to create concatenation on fly to reduce gaps between two streams switching.

  Is this possible by using ffmpeg concatenation ?

  Any direction will be much appreciated.

  Thanks a lot in advance.