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• Revision b80020d4db : Refactoring motion search libs The core motion estimation fucntions all return

  28 février 2014, par Deb Mukherjee

  Changed Paths :
   Modify /vp9/encoder/vp9_firstpass.c

  
   Modify /vp9/encoder/vp9_mcomp.c

  
   Modify /vp9/encoder/vp9_mcomp.h

  
   Modify /vp9/encoder/vp9_pickmode.c

  
   Modify /vp9/encoder/vp9_rdopt.c

  
  
  Refactoring motion search libs

  The core motion estimation fucntions all return sad now consistently.
  The only exception is vp9_full_pixel_diamond(), however the core diamond
  and refining search routines called from vp9_full_pixel_diamond() also
  return SAD. If variance of pred error + mv cost is desired it must be
  calculated explicitly outside these functions. For very fast encoding,
  hopefully this will eliminate some redundant computations.

  Also suggests reimplementing FAST_HEX with the vp9_pattern_search
  framework. It is not exactly the same as the existing FAST_HEX, but
  performance is slightly better and speed is very similar. Enables
  removing a lot of duplicate code.

  Change-Id : I152736393438c25bdf7e96b37cbb8ce330f4f94a

• ffmpeg & watermark issue on convert movie

  27 mars 2017, par Sebastian Schweinste

  after update of WinFF i get error :

  "C:\Program Files (x86)\WinFF\ffmpeg.exe" -t 0:00:25 -y -i "c:\Videos\temp\input.mpg" -f mp4  -r 14 -vcodec libx264 -coder 1 -flags +loop+cgop -cmp +chroma -partitions +parti8x8+parti4x4+partp8x8+partb8x8 -me_method hex -subq 7 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -b_strategy 1 -qcomp 0.6 -qmin 0 -qmax 69 -qdiff 4 -bf 3 -refs 3 -direct-pred 1 -trellis 1 -wpredp 2 -vf scale=240:180 -aspect 4:3 -maxrate 800k -bufsize 80k -b:v 400k -ar 44100 -b:a 80k -ac 2 -b 650k  -vf "movie="c:\Videos\watermarklogo.png" [watermark]; [in][watermark] overlay=main_w-overlay_w-10:main_h-overlay_h-10 [out]" "c:\Videos\new\output.mpg"

  error :
  Filtergraph ’scale=240:180’ was specified through the -vf/-af/-filter option for output stream 0:0, which is fed from a complex filtergraph.
   vf/-af/-filter and -filter_complex cannot be used together for the same stream.

  i downt know how to fix

• send browser camera to rtmp server

  22 juin 2022, par anamul

  i am using python and in frotnend javascript.

  


  I am using ffmpeg to push video to rtmp server.

  


  ffmpeg -y -f mp4 -stream_loop -1 -re -i myvideo.mp4
-b:v 3M -vcodec libx264 -r 30.0 -s 1280x720
-c:a copy -b:a 96k
-f flv "rtmps://dfdf222.global-contribute.live-video.net:443/app/"


  


  It is working well but i am not getting how to push to rtmp server of my browser camera ? i mean from javascript ?

  


  i am trying like this :

  


  &#xA;    <video autoplay="autoplay"></video>&#xA;&#xA;    <a href="#">open and stream</a>&#xA;&#xA;    <code class="echappe-js">&lt;script&gt;&amp;#xA;        function streamVideo () {&amp;#xA;            console.log(&amp;#x27;ddd&amp;#x27;)&amp;#xA;            navigator.mediaDevices.getUserMedia({&amp;#xA;            video: {&amp;#xA;&amp;#xA;            },&amp;#xA;            audio: {&amp;#xA;                &amp;#xA;            }&amp;#xA;            }).then(stream=&gt;{&amp;#xA;                console.log(stream)&amp;#xA;                document.getElementById(&amp;#x27;vid&amp;#x27;).srcObject = stream; &amp;#xA;            })&amp;#xA;&amp;#xA;        }&amp;#xA;    &lt;/script&gt;&#xA;&#xA;

  


  It is working but not getting any way to push from browser to rtmp server. I know browser doesnt support rtmp protocol, we need to send it from the backend but can i push to server so that it push to rtmp server ?

  


  Anyone know the way ?