Sur d’autres sites (4095)

• avcodec/proresdec2 : set color information on frames instead of the decoder context

  10 décembre 2022, par James Almer

  avcodec/proresdec2 : set color information on frames instead of the decoder context
  Similar to how the encoder looks at frame color information to write the frame
  
  header bitstream.
  Should workaround ticket #10091, where container level color parameters passed
  
  to the decoder context were being overwritten.
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavcodec/proresdec2.c

• Revision cea11ebb1e : Hdr change for profiles > 1 for intra-only frames Adds bitdepth, color sampling

  7 août 2014, par Deb Mukherjee

  Changed Paths :
   Modify /vp9/common/vp9_enums.h

  
   Modify /vp9/decoder/vp9_decodeframe.c

  
   Modify /vp9/encoder/vp9_bitstream.c

  
   Modify /vp9/encoder/vp9_encoder.c

  
   Modify /vp9/encoder/vp9_tokenize.c

  
   Modify /vp9/vp9_dx_iface.c

  
  
  Hdr change for profiles > 1 for intra-only frames

  Adds bitdepth, color sampling ind color space information to header
  for intra only frames in profile > 0.
  Also enforces profile 1 and 3 exclusive usage for non 420 color
  sampling.

  Change-Id : I92b0630d5193fdbc6e71fa909d684521c12b5d99

• Why is exec('which ffmpeg') returning nothing in my application ?

  28 avril 2015, par EchoLogic

  I’m trying to deal with FFMpeg for my application, but I’m encountering some difficulty in getting it set up. To instantiate or create an instance of FFMpeg, I need to call a create() method and pass through the operating locations of FFMpeg and FFProbe. To do this, I was hoping to be able to write :

          $ffmpeg = FFMpeg\FFMpeg::create([
  
                  'ffmpeg.binaries' => exec('which ffmpeg'),
  
                  'ffprobe.binaries' => exec('which ffprobe')
  
          ]);

  But, sadly, the command exec('which ffmpeg') returns an empty string. If I run the ’which ffmpeg’ command in Terminal, I get a response :

  /usr/local/bin/ffmpeg

  So why does it work in my terminal, but not when my PHP script tries to execute it ?

  I’ve tried a few solutions, such as appending 2>&1 to the end of the command, which did not help, running the command in shell_exec(), and placing the output in the second parameter of exec() which also did not solve my issue.

  I feel like this may be some sort of weird permissions issue...

  Addendum

  It has been brought to my attention that PHP cannot see my $PATH variable. From the console, echo $PATH produces :

  /Applications/MAMP/bin/php/php5.6.2/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:‌​/sbin:/opt/X11/bin:/usr/local/git/bin:/opt/ImageMagick/bin

  While calling the same from my application with exec() produces :

  /usr/bin:/bin:/usr/sbin:/sbin237.671000