Recherche avancée

Sur d’autres sites (11535)

• FFmpeg. avcodec_find_encoder(AV_CODEC_ID_H264) return false

  14 juillet 2016, par Иван Чванов

  The problem : I can not connect the h264 codec for encoding and decoding of frames.

  ---

  Description :

  I downloaded from here ffmpeg library https://ffmpeg.zeranoe.com/builds/, version dev.

  Connect it to your project QT :

  extern "C"
  
  {
  
      #include 
  
      #include 
  
      #include 
  
      #include 
  
      #include 
  
  }
  
      
  
  #pragma comment (lib, "avcodec.lib")
  
  #pragma comment (lib, "avformat.lib")
  
  #pragma comment (lib, "swscale.lib")
  
  #pragma comment (lib, "avutil.lib")

  Next prescribe av_register_all(); to include all codecs.

  Next, call the function : avcodec_find_encoder(AV_CODEC_ID_H264), returns false.

  In the ReadMe file, the library said that it was collected with —enable-libx264 and —enable-gpl compile the keys including h264 codec that is supposed to be.

  If the call : avcodec_find_encoder(AV_CODEC_ID_MPEG1VIDEO), it returns an object AVCodec, as it should.

  I use the MinGW compiler. OC Windows 7.

  How can I resolve or work around the problem ? Compile the library itself has not yet obtained. I understand you to connect sources and "poking" them, that too is meaningless.

  ---

  ** Once again, I will describe my problem : **

  I need to encode the codec h264 (can VP9) individual frames in one program, and then decode them in another program. You can use other libraries. The language C ++. It is necessary to use interframe compression codec, rather than simply pressed apart frames.

  Sorry for my english.

  Ideas. Advice. Suggestions.

• Encoding failed while adding watermark using ffmpeg in Laravel

  16 décembre 2020, par Ruturajsinh

  I'm getting an error while adding a watermark on the video in Laravel.
I'm using this protonemedia/laravel-ffmpeg package and I got reference code from here stackoverflow answer. I'm using the code from the first answer. If I do not add a watermark then it's working fine, but when I add a watermark I got an error.

  


  


  FFMpeg\Exception\RuntimeException : Encoding failed in file E :\xampp\htdocs\Learn\video-demo\vendor\php-ffmpeg\php-ffmpeg\src\FFMpeg\Media\AbstractVideo.php on line 106

  


  


  I'm using PNG image and MP4 video and I'm using first time this type of package so I don't know how to fix that and I didn't find any right solution.

  


  Please help me to fix that.
Thanks and also sorry for bad English.

  


  My watermark function :

  


  public function postVideo(Request $request)
{
    $video_file = $request->file('file');

    $ffmpeg = FFMpeg\FFMpeg::create();
    $video = $ffmpeg->open($video_file);

    
    $watermark = public_path()."/app_logo.png";
    $reqExtension = "mp4";

    if (!empty($watermark))
    {
        $video->filters()
              ->watermark($watermark, array(
                    'position' => 'bottom',
                    'top' => 25,
                    'right' => 50,
                ));
    }
    $format = new FFMpeg\Format\Video\X264();
    $format->setAudioCodec("libmp3lame");
    

    $randomFileName = rand().".$reqExtension";
    $saveLocation = public_path(). '/watermark/'.$randomFileName;
    $video->save($format,$saveLocation);

    if (file_exists($saveLocation))
        return "http://localhost:8000/video/$randomFileName";
    else
        return "http://localhost:8000/test/thumb/404.png";
    
}


  


• Ffmpeg hls segment stop segmenting after 5300 segments

  9 avril 2019, par Hug Duino

  I’m trying to make a http video streaming using hls, ffmpeg and raspivid and I need a replay time of 1 day but after 5300 segments ffmpeg stop segmenting and continue writing the video to the 5301 segment for the end of the day (5300/5301 is an average number, +- 50 segments)
  I have plenty of storage space, my camera can record all the day. The only problem is ffmpeg who decide to stop segmenting after 5300 segments

  Thank you and sorry for my poor english ^^

  Here is my streaming script :

  base="/var/www/html/"
  
  
  
  set -x
  
  
  
  rm -rf /var/www/html/ppc/saves/live live.h264
  
  mkdir -p /var/www/html/ppc/saves/live
  
  
  
  # fifos seem to work more reliably than pipes - and the fact that the
  
  # fifo can be named helps ffmpeg guess the format correctly.
  
  mkfifo live.h264
  
  raspivid -a 1036 -w 1640 -h 1232 -fps 15 -t 37200000 -b 1500000 -o - | psips > live.h264 &
  
  
  
  # Letting the buffer fill a little seems to help ffmpeg to id the stream
  
  sleep 2
  
  
  
  # Need ffmpeg around 1.0.5 or later. The stock Debian ffmpeg won't work.
  
  # I'm not aware of options apart from building it from source. I have
  
  # Raspbian packags built from Debian Multimedia sources. Available on
  
  # request but I don't want to post them publicly because I haven't cross
  
  # compiled all of Debian Multimedia and conflicts can occur.
  
  ffmpeg -y -r 15 -i live.h264 -f alsa  -i default:CARD=C525 -r:a 48000 -ac 1 -af adelay=32s -c:v copy -c:a aac -b:a 128k -map 0:0 -map 1:0 -r 30 \
  
   -f segment \
  
   -segment_time 7 \
  
   -segment_format mpegts \
  
   -segment_list /var/www/html/ppc/saves/live/live.m3u8 \
  
   -segment_list_flags live \
  
   -segment_list_type m3u8 \
  
   -initial_offset -9 \
  
   -strict 2 /var/www/html/ppc/saves/live/%08d.ts < /dev/null```