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• avcodec/ituh263dec : Use 0xffff as error code in h263p_decode_umotion()

  28 février 2017, par Michael Niedermayer

  avcodec/ituh263dec : Use 0xffff as error code in h263p_decode_umotion()
  This matches ff_h263_decode_motion() both functions error codes are interpreted by the same common code
  Fixes : 690/clusterfuzz-testcase-4744944981901312
  Found-by : continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/ituh263dec.c

• Boost threads and FFmpeg : Such simple code gives me error C2064. What I do wrong way ?

  19 mars 2017, par Rella

  I have some class file.h where public : bool frameSendingFinished; is defined.
  So in class logic i create and encode video frame, now I want to send it to some server using ffmpeg. I want to send in separate thread so in one of my classes function (in file.cpp) I do :

    if (frameSendingFinished)
  
    {
  
        boost::thread UrlWriteFrame(url_context, (unsigned char *)pb_buffer, len);
  
    }
  
  
  
   ....// some other functions code etc.
  
  
  
       void VideoEncoder::UrlWriteFrame( URLContext *h, const unsigned char *buf, int size )
  
  {
  
      frameSendingFinished =false;
  
      url_write (h, (unsigned char *)buf, size);
  
      frameSendingFinished =true;
  
  }

  it works with out creation of new thread. Commenting thread line makes it compile...

  so error is error c2064 term does not evaluate to a function taking 2 arguments

  So - what shall I do with my code to make boost work with in my class ?

• Im getting error "deprecated pixel format used, make sure you did set range correctly using ffmpeg".. can someone check my code below ?

  27 mars 2017, par Mavs Mavs

  This is my code using ffmpeg i want to have video thumbnail but im not familiar in ffmpeg can someone know the error i got.

  [swscaler @ 0x7ff8da028c00] deprecated pixel format used, make sure you did set range correctly
  
  Output #0, mjpeg, to 'image.jpg':
  
  Metadata:
  
  major_brand     : mp42
  
  minor_version   : 0
  
  compatible_brands: isommp42
  
  encoder         : Lavf56.36.100
  
  Stream #0:0(und): Video: mjpeg, yuvj420p(pc), 320x240 [SAR 4:3 DAR 16:9], q=2-31, 200 kb/s, 1 fps, 1 tbn, 1 tbc (default)
  
  Metadata:
  
    creation_time   : 2016-11-06 09:40:22
  
    handler_name    : ISO Media file produced by Google Inc.
  
    encoder         : Lavc56.41.100 mjpeg
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
  
  Press [q] to stop, [?] for help
  
  frame=    1 fps=0.0 q=4.8 Lsize=      16kB time=00:00:01.00 bitrate= 129.5kbits/s    
  
  video:16kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%

  Also This is my code :

  $video_url ='https://URL/upload/4b8acab123563649f19e07450d810df6.mp4';
  
  
  
  
  
   $ffmpeg = '/opt/local/bin/ffmpeg';
  
   $image = 'image.jpg';
  
   $interval = 5;
  
   $size = '320x240';
  
   shell_exec($tmp = "$ffmpeg -i $video_url -deinterlace -an -ss $interval -f mjpeg -t 1 -r 1 -y -s $size $image 2>&1");