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• avfilter/framesync : fix forward EOF pts

  4 octobre 2024, par Nicolas Gaullier

  avfilter/framesync : fix forward EOF pts
  Note1 : when the EOF pts is not accurate enough, the last frame
  
  can be dropped by vf_fps with default rounding.
  Note2 : vf_scale use framesync since e82a3997cdd6c0894869b33ba42430ac3,
  
  so this is a very commonplace scenario.
  For example :
  
  ./ffprobe -f lavfi testsrc=d=1,scale,fps -of flat \
  
    -count_frames -show_entries stream=nb_read_frames
  Before :
  
  streams.stream.0.nb_read_frames="24"
  After :
  
  streams.stream.0.nb_read_frames="25"
  Signed-off-by : Anton Khirnov <anton@khirnov.net>
  

  • [DH] libavfilter/framesync.c

• How to auto start subtitles in video using ffmpeg ? [duplicate]

  26 février 2020, par Sanchit

  I know how to add subtitles to video using :

  ffmpeg -i infile.mp4 -i infile.srt -c copy -c:s mov_text outfile.mp4 

  But it doesn’t autostart with the video, I have to right click and select the subtitles and I would also like to know the command to add subtitles language because when I add and select subtitles, it shows as track 1 or track 2 etc but I would like it shows which language the subtitle is like English, Hindi, Malayalam etc.

• How to generate a gif image from a video with laravel-ffmpeg ?

  27 août 2021, par Jeannot21

  I am working on a project with laravel 7 and ffmpeg my problem is that I would like to generate a gif image from a video uploader but its not working.

  


  I created a job named ConvertImageGifFromVideo here is its code :

  


  class ConvertImageGifFromVideo implements ShouldQueue
{
 use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

/**
 * Create a new job instance.
 *
 * @return void
 */
public $video;
public function __construct(Video $video)
{
    $this->video = $video;
}

/**
 * Execute the job.
 *
 * @return void
 */
public function handle()
{

    $destination = '/'.$this->video->uid . '/'.$this->video->uid. '.gif';
    $result = Storage::disk('video-temp/'.$this->video->path);
    $ffmpeg = FFMpeg::create();
    $video = $ffmpeg->open($result);
    $video->gif(TimeCode::fromSeconds(2), new Dimension(640, 480), 3)->save($destination);

   $this->video->update([
       "image_gif" => $this->video->uid. '.gif',
   ]);
  
 }


  


  }

  


  and here is the error message [2021-08-27 12:47:33] [87] Failed : App \ Jobs \ ConvertImageGifFromVideo
And I would like to know if anyone has already encountered this kind of problem or if there is another way to write this code ?