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Sur d’autres sites (9576)

  • Rails FFMPEG - convert to webm gives error for encoder 'libvpx-vp9'

    7 mai 2019, par Milind

    I am testing video conversion to convert video file into mp4 and webm.
    I have also setup ffmpeg and compiled properly.Mp4 conversion succeeds but webm breaks always complaining as -

    The encoder 'libvpx-vp9' is experimental but experimental codecs are not enabled, add '-strict -2' if you want to use it.

    its strange as I aready have vp8 present -

    mike1011:~/workspace (s1) $ ffmpeg -encoders | grep -i vp
    
ffmpeg version git-2016-03-29-bf1495d Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
    
  configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3
    
  libavutil      55. 19.100 / 55. 19.100
    
  libavcodec     57. 32.100 / 57. 32.100
    
  libavformat    57. 29.101 / 57. 29.101
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 40.102 /  6. 40.102
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.101 /  2.  0.101
    
  libpostproc    54.  0.100 / 54.  0.100
    
 V..... libvpx               libvpx VP8 (codec vp8)
    
 V..X.. libvpx-vp9           libvpx VP9 (codec vp9)
    
 V..... wrapped_avframe      AVFrame to AVPacket passthrough
    
 A..... wavpack              WavPack

    my model..video.rb looks like -

    has_attached_file :video,
    
   :styles => {
    
      :mp4video => { :geometry => '1280x720>', :format => 'mp4',
    
        :convert_options => { :output => { :vcodec => 'libx264', :movflags => '+faststart',  :strict => :experimental} } },
    
      :webmvideo => { :geometry => '1280x720>', :format => 'webm',
    
        :convert_options => { :output => { :vcodec => 'libvpx-vp9'} } }, 
    
      :oggvideo => { :geometry => '1280x720>', :format => 'ogg',
    
        :convert_options => { :output => { :vcodec => 'libtheora',
    
          :acodec => 'libvorbis',  :strict => :experimental } } },
    
      screenshot: { geometry: '640x480#',  :convert_options => {
    
        :output => { :vframes => 1, :s => '300x169', :ss => '00:00:02'} } }
    
    },    
    
    :processors => [:transcoder],
    
     ###other setting comes here
    

    
  ##using delayed-paperclip for background processing of videos
    
  process_in_background :video
    

    
  def process_delayed!
    
    unless self.video.job_is_processing
    
      self.video.job_is_processing = true
    
      self.video.post_processing = true
    
      self.video.reprocess!
    
      self.video.job_is_processing = false
    
    end  
    
  end  

    I am sharing my complete output below(with error highlighted :)) -

        2.4.1 :003 > v=Video.find 25
    
      Video Load (1.8ms)  SELECT  "videos".* FROM "videos" WHERE "videos"."id" = $1 LIMIT 1  [["id", 25]]
    
     => #<video></video>mp4", video_file_size: 1105773, video_updated_at: "2019-02-02 00:17:37", duration: 18.112, slug: "sample320-mp4-dbb96526-5db1-4c59-9152-615fc077eca7", active: true, created_at: "2019-02-02 00:17:37", updated_at: "2019-02-02 00:17:37", video_processing: true> 
    
    2.4.1 :004 > v.process_delayed!
    
    [paperclip] copying /videos/25/original/Sample320.mp4 to local file /tmp/6b5665997c56c12544e7069276f6660b20190203-677953-1jsw8d1.mp4
    
    [paperclip] Trying to link /tmp/6b5665997c56c12544e7069276f6660b20190203-677953-1jsw8d1.mp4 to /tmp/6b5665997c56c12544e7069276f6660b20190203-677953-1qmn2uk.mp4
    
    I, [2019-02-03T00:12:09.849885 #677953]  INFO -- : Running transcoding...
    
    ["/usr/local/bin/ffmpeg", "-y", "-i", "/tmp/6b5665997c56c12544e7069276f6660b20190203-677953-1jsw8d1.mp4", "-s", "360x240", "-aspect", "1.5", "/tmp/2f51a6ecbce019dcad28a46b5be980ec20190203-677953-rh2lh0.mp4"]
    

    
    I, [2019-02-03T00:12:16.060391 #677953]  INFO -- : Transcoding of /tmp/6b5665997c56c12544e7069276f6660b20190203-677953-1jsw8d1.mp4 to /tmp/2f51a6ecbce019dcad28a46b5be980ec20190203-677953-rh2lh0.mp4 succeeded
    

    
    [paperclip] Trying to link /tmp/2f51a6ecbce019dcad28a46b5be980ec20190203-677953-rh2lh0.mp4 to /tmp/2961027361de4afbbb86f7764a034ee020190203-677953-1g0vvwe.mp4
    
    I, [2019-02-03T00:12:16.082499 #677953]  INFO -- : Running transcoding...
    
    ["/usr/local/bin/ffmpeg", "-y", "-i", "/tmp/6b5665997c56c12544e7069276f6660b20190203-677953-1jsw8d1.mp4", "-s", "360x240", "-aspect", "1.5", "/tmp/2f51a6ecbce019dcad28a46b5be980ec20190203-677953-fv3pzs.webm"]
    

    
    E, [2019-02-03T00:12:16.202420 #677953] ERROR -- : Failed encoding...
    
    ["/usr/local/bin/ffmpeg", "-y", "-i", "/tmp/6b5665997c56c12544e7069276f6660b20190203-677953-1jsw8d1.mp4", "-s", "360x240", "-aspect", "1.5", "/tmp/2f51a6ecbce019dcad28a46b5be980ec20190203-677953-fv3pzs.webm"]
    

    
    ffmpeg version git-2016-03-29-bf1495d Copyright (c) 2000-2016 the FFmpeg developers
    
      built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
    
      configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3
    
      libavutil      55. 19.100 / 55. 19.100
    
      libavcodec     57. 32.100 / 57. 32.100
    
      libavformat    57. 29.101 / 57. 29.101
    
      libavdevice    57.  0.101 / 57.  0.101
    
      libavfilter     6. 40.102 /  6. 40.102
    
      libswscale      4.  0.100 /  4.  0.100
    
      libswresample   2.  0.101 /  2.  0.101
    
      libpostproc    54.  0.100 / 54.  0.100
    
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/6b5665997c56c12544e7069276f6660b20190203-677953-1jsw8d1.mp4':
    
      Metadata:
    
        major_brand     : isom
    
        minor_version   : 512
    
        compatible_brands: isomiso2avc1mp41
    
        encoder         : Lavf57.76.100
    
      Duration: 00:00:18.11, start: 0.000000, bitrate: 488 kb/s
    
        Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 360x240 [SAR 32:27 DAR 16:9], 353 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
    
        Metadata:
    
          handler_name    : VideoHandler
    
        Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 129 kb/s (default)
    
        Metadata:
    
          handler_name    : SoundHandler
    

    
XXXXXXXXXXXXXXXXXXXXXXXX====== HERE COMES THE ERROR========XXXXXXXXXXXX
    
    [libvpx-vp9 @ 0x3e3dec0] The encoder 'libvpx-vp9' is experimental but experimental codecs are not enabled, add '-strict -2' if you want to use it.
    

    
    Errors: encoded file is invalid. 
    

    
    Paperclip::Error: There was an error processing the transcoder for 6b5665997c56c12544e7069276f6660b20190203-677953-1jsw8d1
    
           ...

  • I have a problem withInvalid file index 1 in filtergraph description

    17 avril 2019, par Davide

    This is my code :

    ffmpeg -i wireframe-spendo.mov palette.png -filter_complex fps=25,scale=800:600:flags=lanczos[x],[x][1:v]paletteuse wireframe-spendo.gif

    but after then :

    ffmpeg -i wireframe-spendo.mov palette.png -filter_complex fps=25,scale=800:600:flags=lanczos[x],[x][1:v]paletteuse wireframe-spendo.gif
    
ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1.3 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/openjdk-12.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/openjdk-12.jdk/Contents/Home/include/darwin' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-videotoolbox --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr
    
  libavutil      56. 22.100 / 56. 22.100
    
  libavcodec     58. 35.100 / 58. 35.100
    
  libavformat    58. 20.100 / 58. 20.100
    
  libavdevice    58.  5.100 / 58.  5.100
    
  libavfilter     7. 40.101 /  7. 40.101
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  3.100 /  5.  3.100
    
  libswresample   3.  3.100 /  3.  3.100
    
  libpostproc    55.  3.100 / 55.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'wireframe-spendo.mov':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 0
    
    compatible_brands: qt  
    
    creation_time   : 2019-04-17T09:38:24.000000Z
    
    com.apple.quicktime.make: Apple
    
    com.apple.quicktime.model: iMac12,2
    
    com.apple.quicktime.software: Mac OS X 10.13.6 (17G6029)
    
    com.apple.quicktime.creationdate: 2019-04-17T11:37:00+0200
    
  Duration: 00:00:16.42, start: 0.000000, bitrate: 3170 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1476x1074 [SAR 1:1 DAR 246:179], 3163 kb/s, 60 fps, 60 tbr, 6k tbn, 12k tbc (default)
    
    Metadata:
    
      creation_time   : 2019-04-17T09:38:24.000000Z
    
      handler_name    : Core Media Video
    
      encoder         : H.264

    output terminal says :

    Invalid file index 1 in filtergraph description fps=25,scale=800:600:flags=lanczos[x],[x][1:v]paletteuse.

  • Allowing downloads of partial video files from Django

    18 janvier 2019, par DataVis

    I have a Django app that allows users to make/save ’clips’ of video files, that is keep timestamps of start and end times of video files to save in playlists. I would like users to be able to download clips (and playlists as well) they have saved.

    I have done quite a bit of research on the topic and have gotten ffmpeg working from my terminal to save partial clips (though I’ve struggled to figure out pathnames for using subprocess.call with ffmpeg), and I have also gotten moviepy working via the terminal to save partial clips.

    I’m struggling to figure out how to incorporate this into my Django app so that users can click a link and subsequently begin a download of a specific clip (or playlist). I believe I will want to use celery to avoid tying up the server but I’m not even to the point where I can offload a task as I can’t figure out how to :

    1. ’Clip’ the original, longer video file to make it shorter (do I need to make a local copy of a new file first ?).
    2. Send a response as a download to the user.

    Here is my models.py :

    class Match(models.Model):
    
    game_id = models.IntegerField(primary_key=True,
    
        validators=[MinValueValidator(1)],db_column="game_id")
    
    wide = models.FileField(upload_to='games/2018/',blank=True,null=True)
    

    
class Playlist(models.Model):
    
        name = models.CharField(default='',null=True,blank=True,max_length=200)
    
        created_by = models.ForeignKey(User,related_name="playlists",on_delete=models.CASCADE)
    
        created =   models.DateTimeField(editable=False)
    
        modified =  models.DateTimeField()
    

    

    
        def save(self, *args, **kwargs):
    
            ''' On save, update timestamps '''
    
            if not self.id:
    
                entries = Playlist.objects.order_by('-id')
    
                try:
    
                    self.id = entries[0].id + 1
    
                except IndexError:
    
                    # we don't have any PlaylistEntries yet, so we just start @ 0
    
                    self.id = 0
    
                self.created = timezone.now()
    
            self.modified = timezone.now()
    

    
            return super(Playlist, self).save(*args, **kwargs)
    

    

    
    class Clip(models.Model):
    
        name =  models.CharField(default='',null=True,blank=True,max_length=200)
    
        game_id = models.ForeignKey(Match,related_name="clips",on_delete=models.CASCADE,
    
            db_column="game_id",null=True,blank=True)
    
        clipstart = models.IntegerField(null=True,blank=True)
    
        clipend = models.IntegerField(null=True,blank=True)
    
        playlist = models.ForeignKey(Playlist,related_name="clips",on_delete=models.CASCADE,
    
            db_column="playlist",null=True,blank=True)
    
        created_by = models.ForeignKey(User,related_name="clips",on_delete=models.CASCADE)
    
        created =   models.DateTimeField(editable=False)
    
        modified =  models.DateTimeField()
    
        duration = models.IntegerField(null=True,blank=True)
    

    
        def save(self, *args, **kwargs):
    
            ''' On save, update timestamps '''
    
            if not self.id:
    
                entries = Clip.objects.order_by('-id')
    
                try:
    
                    self.id = entries[0].id + 1
    
                except IndexError:
    
                    # we don't have any PlaylistEntries yet, so we just start @ 0
    
                    self.id = 0
    
                self.created = timezone.now()
    
            self.modified = timezone.now()
    
            self.duration = int(self.clipend) - int(self.clipstart)
    
            return super(Clip, self).save(*args, **kwargs)

    And views.py where I’m struggling (I’m not sure if I’m working with FileField properly etc) :

    from moviepy.editor import *
    
def ClipDownload(request,pk,*args,**kwargs):
    

    
    this_clip = models.Clip.objects.filter(pk=pk)
    
    file_name = this_clip[0].game_id.wide
    

    
    p = VideoFileClip(file_name,audio=False).subclip(this_clip.clipstart,this_clip.clipend)
    

    
    response = HttpResponse(p, content_type='application/force-download')
    
    response['Content-Disposition'] = 'attachment; filename=%s' % this_clip.name
    
    response['Content-Length'] = os.path.getsize(file_name)
    
    return response

    The current code is not working, I’m getting the proper Clip but I’m not able to make a subclip of the FileField as I’m getting an attribute error :

    AttributeError: 'FieldFile' object has no attribute 'endswith'

    I would be very appreciative if someone can point me in the right direction to get the file downloading so I can move on to trying to incorporate it into celery ?

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