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• Revision 198fa6d0a0 : Add Neon horizontal and vertical vp9_mbloop_filter - The vp9 mbfilter C code wi

  1er juillet 2013, par Frank Galligan

  Changed Paths :
   Modify /vp9/common/arm/neon/vp9_loopfilter_neon.asm

  
   Modify /vp9/common/vp9_rtcd_defs.sh

  
  
  Add Neon horizontal and vertical vp9_mbloop_filter

   The vp9 mbfilter C code will branch on flat and mask. This CL
  will perform both branches and combine the data. A later CL will
  perform a check to see if all patch will take one branch.
   These functions are about 1.75 times faster than the C code on
  Nexus 7.

  PS #3
   Changed all functions to dub limit, blimit, and thresh from
  vld dx[], freeing up r4-r6.
   Changed code to use vbif to reduce one instruction and free
  up a d register.

  Change-Id : I028dae0e434dc9891c3677bdb182e201ffb04777

• ffmpeg neighbor resize giving distortion when resizing video game footage. 2x2 pixels converted to 3x3 don't hold their color and are pixelated

  12 avril 2020, par PixelFrustated

  Here is my ffmpeg code :

  



  ffmpeg -i C :\FFMPEG\bin\input.mp4 -vf "scale=-2:1080" -sws_flags neighbor -c:v libx264 -crf 0 -preset Slow -c:a copy -b:a 320k C :\FFMPEG\bin\VIDEO2_1080p.mp4

  



  I'm converting a 720p video to 1080p. The game is 2x2 pixels and when I do the conversion they should be flat 3x3 pixels but instead they come out with slight miscolors on the insides between the pixels and their color is slightly off.

  



  Can anyone help me figure out why this warped ?

  



  Pixels on the left are 2x2 and are converted to the pixels on the right.

  



  Instead of 2x2 expanding out to a 3x3 it takes a weird blend going vertical but the horizontal pixels are just fine.

  


• find matching files using a.bat script and assign them to a variable ?

  2 octobre 2019, par A Person

  I am trying to assign a file to a variable in batch-file and then also assign anoter 2 files into anoter variable.

  However, i am having an issue.

  From research, i found how i can do the assigning but does anyone know how i can do the below.

  From a folder or text file (either is fine) find the .m2v video file and assign that to Var1 then find matching audio in .wav and put that in Var2 and the third is also an audio .wav with mathcing name and assign that to Var3.

  Problem i am having is that trying to find the matching 2 audio file to the video.

  The video file is named as PAV_PRG_13683Highc450277201906251802090353.m2v

  Audio 1 is : PAV_PRG_13683High01c450211201906251802090376.wav

  Audio 2 is : PAV_PRG_13683High00c450211201906251802090368.wav

  the file name matches until it sees the word High. Everything after High is not needed and is random string so trying to match is an issue.

  is there a way to find the match by comparing everything before High.

  Also as i will be using the variable and putting them through ffmpeg to merge, is there way to do it so that when the ffmpeg command is done, it moves to the next matching files and assigns them to the variable.

  files are store in 2 folders

  One folder has all the video files *.m2v

  and another folder has all the *.wav audio files in pairs of 2. Each video has exactly 2 audios (left right audio)

  is there any hel pon this subject, i have already come up empty in my research and have been checking for this over the last week spent almost 30 hours.