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• How to convert jquery animation to movie or gif format ?

  19 avril 2019, par Barış Demirdelen

  How to convert jquery animation to movie or gif format ?
  Animation and screenshot functions call or too slow.
  Help me please

  Animation Function

  function resim1(){
  
      $("#resim-1").animate({ left: leftx}, startEffectTime1);
  
      ......
  
  }

  ScreenShot Function but too slow

  function shot(){
  
            html2canvas($("#main"), {
  
                onrendered: function(canvas) {
  
                    theCanvas = canvas;
  
                    document.body.appendChild(canvas);
  
                    Canvas2Image.saveAsPNG(canvas); 
  
                    $("#img-out").append(canvas);
  
                }
  
            });
  
  }

  Call animation and screenshot functions

  $(document).ready(function() {
  
       resim1(); // Animate start
  
       setInterval(function(){ // Screenshot start
  
            shot();
  
       },500);
  
  
  
  });

  Bottom function call animation breaking :/

  $(document).ready(function() {
  
       resim1(); // Animate start
  
       setInterval(function(){ // Screenshot start
  
            shot();
  
       },500);
  
  
  
  });

• ffmpeg muxing overhead converting avi to mp4

  8 avril 2017, par Slightz

  I have been trying to convert Avi to mp4 and Mkv to mp4. About half way the conversion stops and I get this error message.

  frame=39363 fps=133 q=-1.0 Lsize=   89951kB time=00:21:52.06 bitrate= 561.6kbits/s dup=7907 drop=0 speed=4.44x    
  
  video:67736kB audio:20837kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.556231%
  
  [libx264 @ 0x4607020] frame I:392   Avg QP:20.71  size: 34889
  
  [libx264 @ 0x4607020] frame P:12191 Avg QP:20.84  size:  3857
  
  [libx264 @ 0x4607020] frame B:26780 Avg QP:22.63  size:   324
  
  [libx264 @ 0x4607020] consecutive B-frames:  2.7% 15.5% 12.8% 69.0%
  
  [libx264 @ 0x4607020] mb I  I16..4: 23.7% 36.4% 39.9%
  
  [libx264 @ 0x4607020] mb P  I16..4:  1.5%  2.2%  0.9%  P16..4: 30.4%  4.7%  4.7%  0.0%  0.0%    skip:55.5%
  
  [libx264 @ 0x4607020] mb B  I16..4:  0.0%  0.1%  0.1%  B16..8: 11.9%  0.6%  0.2%  direct: 0.6%  skip:86.6%  L0:31.1% L1:67.6% BI: 1.2%
  
  [libx264 @ 0x4607020] 8x8 transform intra:43.0% inter:46.1%
  
  [libx264 @ 0x4607020] direct mvs  spatial:99.9% temporal:0.1%
  
  [libx264 @ 0x4607020] coded y,uvDC,uvAC intra: 37.6% 66.1% 49.3% inter: 3.0% 8.5% 2.6%
  
  [libx264 @ 0x4607020] i16 v,h,dc,p: 69% 17% 12%  2%
  
  [libx264 @ 0x4607020] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 12% 44%  5%  5%  4%  5%  4%  6%
  
  [libx264 @ 0x4607020] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 16% 14%  7%  8%  7%  8%  7%  8%
  
  [libx264 @ 0x4607020] i8c dc,h,v,p: 43% 28% 23%  6%
  
  [libx264 @ 0x4607020] Weighted P-Frames: Y:0.2% UV:0.2%
  
  [libx264 @ 0x4607020] ref P L0: 73.2%  3.9% 13.1%  4.9%  4.7%  0.1%  0.0%
  
  [libx264 @ 0x4607020] ref B L0: 84.5%  9.6%  4.6%  1.3%
  
  [libx264 @ 0x4607020] ref B L1: 96.6%  3.4%
  
  [libx264 @ 0x4607020] kb/s:422.90
  
  [aac @ 0x460ab80] Qavg: 1245.471

  I have tried different commands I’ve found on google but no luck.

  ffmpeg -i american.dad.s01e01.dvdrip.xvid.repack-omicron.avi -r 30 -vcodec libx264 -vf scale=-1:480 -b:v 500k -bufsize 500K -bt 1600k -threads 0 -profile high -preset slow -acodec aac -ac 2 -ar 44100 -ab 128k converting/out2.mp4
  
  
  
  ffmpeg -i american.dad.s01e01.dvdrip.xvid.repack-omicron.avi -acodec aac -b:a 128k -vcodec libx264 -vf scale=-1:480 -threads 0 -profile high -preset slow -b:v 500k -bufsize 1000k -maxrate 500k -f mp4 converting/out1.mp4
  
  
  
  ffmpeg -re -i american.dad.s01e01.dvdrip.xvid.repack-omicron.avi -r 30 -isync -ac 2 -acodec aac -strict -2 -b:a 80k -ar 22050 -vcodec libx264 -vf scale=-1:480 -crf 18 -profile high -preset slow -b:v 500K -bufsize 500K -maxrate 500K -f mp4 converting/out3.mp4

• ffmpeg droping session when there is no input , need to wait for an input

  25 mars 2019, par Hovo

  I am trying to live stream to facebook from an application, which is writing frames into image sequence of XXX_Frame.jpg inside a folder.

  I am using a ffmpeg with these commands

  ffmpeg -y -r 15 -f image2 -start_number 0 -i "%0d_Frame.jpg" -i "test.mp3" -muxdelay 1 -preset slow -flush_packets 1 -ar 44100 -b:a 128k -profile:v baseline -acodec aac -vf scale=1280x720 -vcodec libx264 -crf 15 -r 50 -pix_fmt yuvj420p -minrate 50k -maxrate 150k -bufsize 8192k -g 1 -b:v 1200 -f flv "rtmp ://live-api-s.facebook.com:80/rtmp/xxxxxx"

  It is starting to stream faster than 15 frames per second and whenever it finishes up streaming of the available frames it is killing the process and returning error.
  It would be perfect if it was possible to slow down the mux’s read from the input to frame rate speed.

  [flv @ 000001f34347cf00] Failed to update header with correct duration.
  [flv @ 000001f34347cf00] Failed to update header with correct filesize.
  Error writing trailer of rtmp ://live-api-s.facebook.com:80/rtmp/xxxxxx : Error number -10053 occurred

  Any help would be appreciated.

  Expected result is to stream continuously without losing the connection , even sending the last available image continuously.