File: Flashing Lights HQ.swf-(9.97 MB, 1280x720, Other)
[_] Re-dubbed for SwfH264 Anonymous 06/30/15(Tue)20:40:07 No.

>> [_] Anonymous 06/30/15(Tue)20:49:18 No.

  /r/ ffmpeg command line please!

  from the sound of it the audio could probably have used more bitrate but you managed to get the
  visuals really great. was the trick using very low resolution?

>> [_] Anonymous 06/30/15(Tue)20:50:53 No.

  how come you choose to not put the source in the source bar OP?

>> [_] Anonymous 06/30/15(Tue)20:54:16 No.

  what was the point of him taking his finger off?

>> [_] Anonymous 06/30/15(Tue)20:57:09 No.

  >>2829646

  I had to cut the audio bitrate because encoding the last 30 seconds would cause a bitrate spike
  in the video stream because of the added detail. I did bring the video size down a bit to
  preserve quality but it had nil affect on file size.

  ffmpeg.exe -i "output_new.avi" -profile:v high10 -level 4.2 -vcodec libx264 -vb 280k -r 24 -g 240
  -keyint_min 12 -vf scale=-1:ih*0.5 -tune animation -threads 0 -preset veryslow -sn -acodec
  libvo_aacenc -ac 2 -ab 32k -ar 22050 -f flv -y "output.flv"

  Keep in mind, that's not necessarily plug and play for every case.

  >>2829650
  I forgot. :^)

  >>2829653
  Religion :^)

>> [_] Anonymous 06/30/15(Tue)21:06:51 No.

  >>2829657
  cheers

  if you decrease dimensions you need to decrease bitrate as well, otherwise it will just increase
  the quality of each frames (more bits on fewer pixels)

  this might have made the visuals look just as good (since it's pixelart) while allowing better
  audio:

  ffmpeg.exe -i "output_new.avi" -profile:v high10 -level 4.2 -vcodec libx264 -vb 125k -r 24 -g 240
  -keyint_min 12 -vf scale=-1:ih*0.25 -tune animation -threads 0 -preset veryslow -sn -acodec
  libvo_aacenc -ac 2 -ab 64k -ar 44100 -f flv -y "output.flv"

  maybe nobody would have noticed 20 fps instead of 24 fps as well, which would increase the
  quality further (more bits per pixels)

  what does "-tune animation" do?

>> [_] Anonymous 06/30/15(Tue)21:15:57 No.

  >>2829672
  That's kind of the effect I wanted, though. Since lower bitrates started causing some noticeable
  artifacts towards the end.

  I chose 24 FPS because the source video stream was 48 FPS. I tried 18 FPS, but it caused some
  jitter I didn't like. I figure this is probably because it doesn't divide evenly into the source
  framerate.

  >what does -tune animation do?

  It changes how the h264 encoder behaves such that it will do its best to retain the quality of
  flat colors and surfaces, sharp lines, etc. It's kind of a preset way of tuning deblocking
  filters, trellis, et. al. without manually adjusting them yourself.

>> [_] Anonymous 06/30/15(Tue)21:18:00 No.

  >>2829683

  One thing I should add, is high10, despite what I previously thought, is silently ignored and
  high profile is used instead. Flash will playback hi10p video but the chroma gets all messed up.
  So IRL you could just use -profile:v high instead.

>> [_] Anonymous 06/30/15(Tue)21:18:30 No.

  >>2829683
  alright

>> [_] Anonymous 06/30/15(Tue)21:19:37 No.

  >>2829686
  interesting, thanks

>> [_] SEGA 06/30/15(Tue)21:29:37 No.

  now with all that said, 2spooky4me

>> [_] Anonymous 06/30/15(Tue)21:36:30 No.

  Ok.. time to move past this crap and play terranigma for some reason.

>> [_] Anonymous 06/30/15(Tue)21:58:43 No.

  I've always wondered what the source for the video is, anyone?

>> [_] Anonymous 06/30/15(Tue)22:00:13 No.

  >>2829728
  https://www.youtube.com/watch?v=N6M577m4kGw

>> [_] Anonymous 06/30/15(Tue)22:24:55 No.

  I really prefer the old version, but oh well.

>> [_] Anonymous 06/30/15(Tue)23:38:12 No.

  A Y Y L M A O
  Y
  Y
  L
  M
  A
  O

>> [_] Anonymous 06/30/15(Tue)23:41:00 No.

  i dont get it