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• ffmpeg : add progress speed to status line and report

  11 décembre 2015, par Moritz Barsnick

  ffmpeg : add progress speed to status line and report
  This adds a computation of the progress speed versus realtime ("Nx")
  
  to the status line and to the report log. It uses the progress time
  
  as already calculated for total output time as a base.
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] ffmpeg.c

• lavc/dsd_tablegen : speed up table generation

  29 décembre 2015, par Ganesh Ajjanagadde

  lavc/dsd_tablegen : speed up table generation
  Tables are bit identical.
  
  Sample benchmark (Haswell, GNU/Linux+gcc) :
  
  old :
  
   814485 decicycles in dsd_ctables_tableinit,     512 runs,      0 skips
  new :
  
   356808 decicycles in dsd_ctable_tableinit,     512 runs,      0 skips
  Binary size should essentially be identical, and is in fact identical on
  
  the configuration I tested on.
  Reviewed-by : Michael Niedermayer <michael@niedermayer.cc>
  
  Signed-off-by : Ganesh Ajjanagadde <gajjanagadde@gmail.com>
  

  • [DH] libavcodec/dsd_tablegen.h

• Options for cross-platform video & audio playback with speed control [on hold]

  11 janvier 2016, par Jon Cook

  I’m looking for a component that will do the following :

  1. (Must) Playback most common video formats (e.g. mp4, wmv, AVCHD, F4V, swf, MKV, DIVX, Mov, Avi, MPEG-1, MPEG-2, flv, VOB, asf)
  2. (Should) Stream video
  3. (Must) Playback most common audio formats (e.g .mp3, wav, .m4a, .mid)
  4. (Should) Stream audio
  5. (Must) Slow-down/speed up video&audio
  6. (Must) Adjust pitch of video&audio
  7. (Should) Zoom in on video

  It needs to work on the following platforms :

  1. (Must) Mac
  2. (Must) iPad
  3. (Should) iPhone
  4. (Should) Android
  5. (Should) Windows

  I’m prepared to work with any language, tech stack, whatever, as long as it meets those requirements.

  Is there any such thing out there ?

  I’ve started looking around (have checked out http://ffmpeg.org/ and www.vitamio.org/) but I’m a bit overwhelmed - too many variables - hoping someone out there might have some hints ?