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• Processing 3.0 get Error=2 No such file or directory

  29 octobre 2016, par Tuang Pingfavilunda

  I cannot figure it out what happen to my Processing file. I am trying to use VideoExport library and my Macbook Pro cannot play it, but the Mac-mini is able to do so.

  Before the error happened it is another error=13 permission denied thing, so I messed in the terminal for a while with chmod 777 and finding the file with ls. I don’t know if that may be the reason that caused this happen. FYI, I also installed ffmpeg already.

  And this is the full error :

      java.io.IOException: Cannot run program "/Users/Tuang/Desktop/DMA_WORKS/Work1_Facial Muscles/Cam_Rec/sketch_161027a/sketch_161027a.pde": error=2, No such file or directory
  
      at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
  
      at com.hamoid.VideoExport.startFfmpeg(Unknown Source)
  
      at com.hamoid.VideoExport.initialize(Unknown Source)
  
      at com.hamoid.VideoExport.saveFrame(Unknown Source)
  
      at Basic.draw(Basic.java:32)
  
      at processing.core.PApplet.handleDraw(PApplet.java:2412)
  
      at processing.awt.PSurfaceAWT$12.callDraw(PSurfaceAWT.java:1540)
  
      at processing.core.PSurfaceNone$AnimationThread.run(PSurfaceNone.java:316)
  
  Caused by: java.io.IOException: error=2, No such file or directory
  
      at java.lang.UNIXProcess.forkAndExec(Native Method)
  
      at java.lang.UNIXProcess.<init>(UNIXProcess.java:247)
  
      at java.lang.ProcessImpl.start(ProcessImpl.java:134)
  
      at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
  
      ... 7 more
  
  VideoExport error: Ffmpeg failed. Study /Users/Tuang/Desktop/DMA_WORKS/Work1_Facial_Muscles/Camera_Recorder/Basic/basic.mp4.txt for more details.
  
  Could not run the sketch (Target VM failed to initialize).
  
  For more information, read revisions.txt and Help → Troubleshooting.
  
  </init>

  ---

  1) The java.io.IOException : trying to call "/Work1_Facial Muscles/Cam_Rec/sketch_161027a/sketch_161027a.pde" which doesn’t exist for real. It is gone for a long time but seems like the program stuck here.

  2) "basic" is a file name from the Example of the Library. I just use it to test. Surprisingly, Every files that have been saved and changed the name still get the java.io.IOException’s error of the missing sketch_161027a.pde file.

  ---

  What I have done :
  1 I have already done the Homebrew thing to install ffmpeg.
  2 I deleted everything of Processing and reinstall it again.

  Any suggestion ?

• crystalhd : Fix handling of PTS

  18 septembre 2016, par Philip Langdale

  crystalhd : Fix handling of PTS
  With all the various refactorings that have happened over the years,
  
  the current pts logic is very broken for non-trivial cases (ie : ones
  
  where not every frame/field has a meaningful pts assocated with it).
  Generally, we do not want to write AV_NOPTS_VALUE as the output
  
  timestamp, regardless of anything else. It’s better to pass zero
  
  if there’s no other information.
  Additionally, interlaced content where the decoder returns each field
  
  separately can result in the first field carrying the timestamp and
  
  the second having AV_NOPTS_VALUE. It’s clearly wrong to overwrite
  
  the valid timestamp.
  So, let’s just never write AV_NOPTS_VALUE into an output frame.
  Empirically, this fixed playback of interlaced mpeg2 and h.264 and
  
  mpeg4-asp with packed b-frames in an avi container.
  

  • [DH] libavcodec/crystalhd.c

• read videos from a .m3u8 file with HTML5

  6 septembre 2016, par LeCintas

  I am looking for use a .m3u8 file to play a video playlist on my local HTML page but nothing happened when i run the page.

  Here is my HTML code :

      
  
          
  
          
  
      
  
      
  
          <video height="360" controls="controls" autoplay="autoplay">
  
              <source src="testlist.m3u8" type="application/x-mpegURL"></source>
  
          </video>
  
      

  testlist.m3u8 is in the same folder as the html file and .mp4 files.

  here is the command that i used to create the .m3u8 file and the sliced .mp4 files.

  ffmpeg -i "video.mp4" -vcodec libx264 -acodec copy -flags -global_header -map 0:0 -map 0:1 -f segment -segment_time 4 -segment_list_size 0 -segment_list testlist.m3u8 -segment_format mpegts stream%d.mp4