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• Revision 5182befa49 : ads2armasm_ms : Add an ALIGN 4 after ENDP This makes sure that labels for data s

  19 mars 2014, par Martin Storsjo

  Changed Paths :
   Modify /build/make/ads2armasm_ms.pl

  
  
  ads2armasm_ms : Add an ALIGN 4 after ENDP

  This makes sure that labels for data symbols directly after
  functions get properly 4-byte-aligned (when the source is assembled
  in thumb mode).

  Previously, if declaring a data symbol directly after a function, the
  symbol could end up pointing to the unaligned address (if the total
  size of the thumb function didn't end up being a multiple of 4). The
  data in the symbol itself ended up aligned, but the symbol pointed to
  the preceding unaligned position.

  That is, a source file looking like this :
  — -
  ...
  ENDP

  symbol
  DCD 0x12345678
  — -

  could end up being assembled into
  symbol :
  xxxxx2 : 0000
  xxxxx4 : 5678
  xxxxx6 : 1234

  (This doesn't happen if the symbol label is on the same line as the
  DCD directive.)

  By adding an ALIGN 4 directly after the ENDP we make sure the symbol
  itself gets aligned properly.

  This isn't an issue with the original, untranslated arm source,
  since it only is built in arm mode where all instructions are 4 byte,
  and since the gnu assembler automatically adds the padding before the
  symbol even in thumb mode.

  Change-Id : Iadbeebd656b0197e423e79a12a7d3ef8859cf445

• exec() does not return to PHP process

  24 avril 2013, par Ivo Renkema

  I am running FFMPEG from PHP with the EXEC command. I am working on a XAMP stack.

  $command = 'ffmpeg -y -i input output 2>logfile';
  
  exec ($command);
  
  // after FFMPEG handling...

  As you can see, I am redirecting FFMPEG's output to a log file.

  This works fine from smaller video files (up to approximately 10 MB).

  My problem is that for larger video files, any PHP commands after the exec() will not get executed. Note however, that the FFMPEG process works just fine. The log file shows that FFMPEG terminates OK, and the resulting output file is also good.

  My max_execution_time is set to 10800, which should be plenty (and then some). Anyway, as I understand from max_time_limit :

  The set_time_limit() function and the configuration directive
  max_execution_time only affect the execution time of the script
  itself. Any time spent on activity that happens outside the execution
  of the script such as system calls using system() ... is not included
  when determining the maximum time that the script has been running.

  Update : error logs state : Premature end of script

  What is going on ?

• How to output stream from camera(recording in RTSP) via FFmpeg (Kokorin Jaffree)

  22 mars 2023, par Глеб К

  I'm trying to reach watching live hls stream in browser based on rtsp-camera stream from java-client using Jafree library(https://github.com/kokorin/Jaffree).

  


  But I could not execute the command due to a lack of FFmpeg rights(FFmpeg is installed in /usr/bin/ffmpeg)
Code

  


  And I also tried to execute this command from runtime :

  


  sudo ffmpeg -fflags nobuffer  -rtsp_transport tcp  -i rtsp://my_url  -vsync 0  -copyts  -vcodec copy  -movflags frag_keyframe+empty_moov  -an  -hls_flags delete_segments+append_list  -f segment  -segment_list_flags live  -segment_time 1  -segment_list_size 3  -segment_format mpegts  -segment_list /temp/stream/index.m3u8  -segment_list_type m3u8  -segment_list_entry_prefix /stream/  /temp/stream/%d.ts


  


  I can execute it in the console and everything is ok, but on the browser I get CORS trying to access it.

  


  (https://i.stack.imgur.com/QUltG.png)

  


  Could you please share a way to achieve stream in the browser ?