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• avcodec/mips : Improve hevc uni-w copy mc msa functions

  21 septembre 2017, par Kaustubh Raste

  avcodec/mips : Improve hevc uni-w copy mc msa functions
  Load the specific destination bytes instead of MSA load and pack.
  
  Pack the data to half word before clipping.
  
  Use immediate unsigned saturation for clip to max saving one vector register.
  Signed-off-by : Kaustubh Raste <kaustubh.raste@imgtec.com>
  
  Reviewed-by : Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/mips/hevc_mc_uniw_msa.c
  • [DH] libavutil/mips/generic_macros_msa.h

• sending variables to subprocess call with spaces - python 2.7

  24 novembre 2015, par Tandy Freeman

  I want to add ffmpeg options to a variable and later use it in a subprocess call. If the variable contains one word, all is well, but if it contains more than one, I get errors. I am working on a larger script and I will need to have extra options such as this for certain codecs. How can I get this working ?

  The following works perfectly for me :

  import subprocess
  
  import sys
  
  
  
  video_codec = 'libx264'
  
  output = sys.argv[1] + '.mkv'
  
  subprocess.call(['ffmpeg',
  
              '-i',sys.argv[1], 
  
              '-c:v',video_codec,
  
              '-c:a','copy',         
  
              output])    

  Once I introduce new options/spaces to video_options as such :

  video_codec = "'libx264', '-pix_fmt', 'yuv420p'"

  I get an ffmpeg error :

  Unknown encoder ''libx264', '-pix_fmt', 'yuv420p''

  If I remove the double quotes and just use
  video_codec = ’libx264’, ’-pix_fmt’, ’yuv420p’

  I get a python error :

  Traceback (most recent call last):
 File "testo.py", line 10, in <module>
   output])<br />
 File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 524, in call
   return Popen(*popenargs, **kwargs).wait()
 File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 711, in __init__
   errread, errwrite)
 File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1308, in _execute_child
   raise child_exception
TypeError: execv() arg 2 must contain only strings
</module>

• TypeError : Cannot read property 'url' of undefined - ws

  28 juillet 2021, par Bawantha Rathnayaka

  I am trying to get URL starts with '/rtmp/', and extract the target RTMP URL.

  


  Uncaught TypeError : Cannot read property 'url' of undefined

  


  this is my server.js

  


    let match
  if (!(match = req.url.match(/^\/rtmp\/(.*)$/))) {
    ws.terminate() // No match, reject the connection.
    return
  }