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• x86 : xvid_idct : port SSE2 iDCT to yasm

  11 mars 2015, par Christophe Gisquet

  x86 : xvid_idct : port SSE2 iDCT to yasm
  The main difference consists in renaming properly labels, and
  
  letting yasm select the gprs for skipping 1D transforms.
  Previous-version-reviewed-by : James Almer <jamrial@gmail.com>
  
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/x86/Makefile
  • [DH] libavcodec/x86/dct-test.c
  • [DH] libavcodec/x86/xvididct.asm
  • [DH] libavcodec/x86/xvididct_init.c
  • [DH] libavcodec/x86/xvididct_sse2.c

• x86 : xvid_idct : port MMX iDCT to yasm

  11 mars 2015, par Christophe Gisquet

  x86 : xvid_idct : port MMX iDCT to yasm
  Also reduce the table duplication with SSE2 code, remove duplicated
  
  macro parameters.
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/x86/Makefile
  • [DH] libavcodec/x86/dct-test.c
  • [DH] libavcodec/x86/xvididct.asm
  • [DH] libavcodec/x86/xvididct_init.c
  • [DH] libavcodec/x86/xvididct_mmx.c

• PNaCl ffmpeg port crashes during startup

  15 avril 2016, par lavsprat

  I’m trying to run a PNaCl ffmpeg port and run some basic commands. Unfortunately I only managed to print this error in index.html :

  > NaCl module load failed : Nexe crashed during startup

  I got the pre-built port from here and my Chrome version is 43.0.2357.132.

  ffmpeg.nmf

  {
  
    "program": {
  
      "portable": {
  
        "pnacl-translate": {
  
          "url": "ffmpeg"
  
        }
  
      }
  
    }
  
  }

  ffmpeg file found in payload\bin path of the downloaded port package has no .pexe extension. I assume this is not a problem as long as nacl manifest doesn’t specify it either. Right ?

  index.html

    <code class="echappe-js">&lt;script type=&quot;text/javascript&quot; src='http://stackoverflow.com/feeds/tag/main.js'&gt;&lt;/script&gt;
  Status : LOADING
  &lt;script type=&quot;text/javascript&quot;&gt;<br />
  
        var listener = document.getElementById('listener');<br />
  
        listener.addEventListener('load', moduleLoadEventHandler, true);<br />
  
        listener.addEventListener('message', messageEventHandler, true);<br />
  
        listener.addEventListener('error', errorEventHandler, true);<br />
  
        listener.addEventListener('crash', crashEventHandler, true);<br />
  
      &lt;/script&gt;
  
  

  main.js

  var ffmpegModule = null;
  
  var logMessageArray = [];
  
  var kMaxLogMessageLength = 20;
  
  
  
  function domContentLoadEventHandler() {
  
      ffmpegModule = document.getElementById('ffmpeg');
  
  }
  
  
  
  function moduleLoadEventHandler() {
  
      ffmpegModule = document.getElementById('ffmpeg');
  
      setStatus('SUCCESS');
  
  }
  
  
  
  function messageEventHandler(eventArgs) {
  
      logMessage('Message received: ' + eventArgs.data);
  
  }
  
  
  
  function errorEventHandler(eventArgs) { //Function that prints the error
  
      setStatus('ERROR [' + ffmpegModule.lastError + ']');
  
  }
  
  
  
  function crashEventHandler() {
  
      if (ffmpegModule.exitStatus == -1) {
  
          setStatus('CRASHED');
  
      } 
  
      else {
  
          setStatus('EXITED [' + ffmpegModule.exitStatus + ']');
  
      }
  
      if (typeof window.handleCrash !== 'undefined') {
  
          window.handleCrash(ffmpegModule.lastError);
  
      }
  
  }
  
  
  
  function setStatus(statusText) {
  
      var statusField = document.getElementById('statusField');
  
      statusField.innerHTML = statusText;
  
  }
  
  
  
  function logMessage(message) {
  
      logMessageArray.push(message);
  
      if (logMessageArray.length > kMaxLogMessageLength) {
  
          logMessageArray.shift();
  
      }
  
      document.getElementById('logs').textContent = logMessageArray.join('\n');
  
  }
  
  
  
  document.addEventListener("DOMContentLoaded", domContentLoadEventHandler);

  Makefile

  I also have this little makefile "stolen" from nacl_sdk tutorials.

  HTTPD_PY := python $(NACL_SDK_ROOT)/tools/httpd.py
  
  
  
  all: serve
  
  
  
  .PHONY: serve
  
  serve:
  
      $(HTTPD_PY) -C $(CURDIR) --no-dir-check