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• FFmpeg - can't pick up the rtsp-stream

  26 avril 2021, par Pivoter

  I am trying to get a single frame through ffmpeg, but I run into an error :

  


  ffmpeg -rtsp_transport tcp -i rtsp://5.101.8.197/11 -vframes 1 -q:v 2 /home/test/video/example.jpg


  


  Output :

  


    [rtsp @ 0x560d28b23900] Could not find codec parameters for stream 0 (Video: h264, none): unspecified size
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  Guessed Channel Layout for Input Stream #0.1 : mono
  Input #0, rtsp, from 'rtsp://5.101.8.197/11':
    Metadata:
      title           : WUHAN Ants RtspServer
    Duration: N/A, start: 0.000000, bitrate: 64 kb/s
      Stream #0:0: Video: h264, none, 90k tbr, 90k tbn, 180k tbc
      Stream #0:1: Audio: pcm_mulaw, 8000 Hz, mono, s16, 64 kb/s
  Output #0, image2, to '/home/test/video/example.jpg':
  Output file #0 does not contain any stream


  


  Changing the parameters analyzability and dimension do not give a result. Noticed that this happens with WUHAN Ants RtspServer, others are fine.
Any ideas ?

  


  UPD : Can try to get the stream at the specified address.

  


• Laravel FFMPEG Error Encoding Failed using Laravel Queue

  9 avril 2021, par Vaibhavraj S. Roham

  I am using "php-ffmpeg/php-ffmpeg": "~0.5" with Laravel 5. I am using this library for compression and conversion of recorded videos. I will explain the scenario first.

  



  When I execute following code from controller it works like charm.

  



  $ffmpeg = FFMpeg::create();
$video = $ffmpeg->open(public_path()."/videos/harsh.webm");
$video
    ->filters()
    ->resize(new \FFMpeg\Coordinate\Dimension(640, 480))
    ->synchronize();
$video
    ->frame(\FFMpeg\Coordinate\TimeCode::fromSeconds(10))
    ->save(public_path().'/videos/converted/kaushik.jpg');
$format=new \FFMpeg\Format\Video\X264('libmp3lame', 'libx264'); 
$format-> setKiloBitrate(300);
$video->save($format,public_path().'videos/converted/kaushik.mp4');``


  



  But when I put this code in a queue job then it fails with following error

  



  


  [FFMpeg\Exception\RuntimeException]
  
 Encoding failed [Alchemy\BinaryDriver\Exception\ExecutionFailureException]
  
 ffmpeg failed to execute command '/usr/bin/ffmpeg' '-y' '-i' '/opt/lampp/htdocs/candidate/public/videos/harsh.webm' '-async' '1' '-metadata:s:v:0 ' 'start_time=0' '-s' '640x480' '-vcodec' 'libx264' '-acodec' 'libmp3lame' '-b:v' '1000k' '-refs' '6' '-coder' '1' '-sc_threshold' '40' '-flags' '+loop' '-me_range' '16' '-subq' '7' '-i_qfactor' '0.71' '-qcomp' '0.6' '-qdiff' '4' '-trellis' '1' '-b:a' '128k' '-pass' '1' '-passlogfile' '/tmp/ffmpeg-passes57ece7d794da4wdw13/pass-57ece7d794e2a' 'videos/converted/kaushik.mp4' ``

  


  



  I am able to convert video in MWV and WEBM using following

  



  $video->save(new \FFMpeg\Format\Video\WMV(), 'export-wmv.wmv');
$video->save(new \FFMpeg\Format\Video\WebM(), 'export-webm.webm');


  



  only mp4 fails if I use the

  



  $format=new \FFMpeg\Format\Video\X264('libmp3lame', 'libx264');


  



  What would be the issue ?

  



  Sorry for my code markup in this question, I tried lot but faild, I am new to it !

  


• Sequence of images of different dimensions to video FFMPEGCORE

  23 mars 2021, par user15450090

  This is my first time with ffmpegcore. I'm trying to convert sequence of png images of different dimensions (height and width) to a video using ffmpegcore. I could create a video. The issue is the video frame is set to the dimension of the first image (eg 174 x 700) so when a higher dimension images (eg 500 x 700) follows, it is shrunk with in (174 x 700).

  


  Could somebody help me resolve the issue ?

  


  I want my video with images of their actual dimensions.

  


  FFMpeg.JoinImageSequence(videoName, frameRate: 15, imageInfos.ToArray());


  


  imageInfos has images of different dimensions