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• tiff : Return proper error for missing LZMA compression

  18 août 2014, par Diego Elio Pettenò

  tiff : Return proper error for missing LZMA compression
  The LZMA support is a semi-official extension supported by libtiff 4.0.0
  
  and later.
  Signed-off-by : Diego Elio Pettenò <flameeyes@flameeyes.eu>
  
  Signed-off-by : Luca Barbato <lu_zero@gentoo.org>
  

  • [DH] libavcodec/tiff.c
  • [DH] libavcodec/tiff.h

• Converted mp4 from gif didn't shows in web browser

  16 décembre 2017, par Stojan Kukrika

  I am trying to convert animated GIFs to MP4 files using ffmpeg. Only this convert GIF to MP4 :

    exec('ffmpeg -i ' . $destinationPath . $filename . ' -movflags faststart -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" ' . $destinationPath . $newFilename);

  And I can play it in my pc when download it from server, but it’s didn’t want to pay in browser. Browser returns me this error :
  

  After that GIF to MP4 converor I get one image for thumbnail image and that is works fine :

  exec("ffmpeg -i " . $destinationPath . $video . ".mp4 -ss  00:00:01.000 -vframes 1 ".storage_path().$folderNameThumb."/media.png");

  and it’s shows me a valid frame of GIF. Can anybody help me how to fix this problem with video ?

  ffprobe output
  
  ffprobe version 2.8.13 Copyright (c) 2007-2017 the FFmpeg developers built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-16)
  
  configuration:
  
    libavutil      54. 31.100 / 54. 31.100
  
    libavcodec     56. 60.100 / 56. 60.100
  
    libavformat    56. 40.101 / 56. 40.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 40.101 /  5. 40.101
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.101 /  1.  2.101

  Here is what I get from one MP4 file (run ffprobe filename.mp4) :

   Metadata:
  
  major_brand     : isom
  
  minor_version   : 512
  
  compatible_brands: isomiso2mp41
  
  encoder         : Lavf56.40.101
  
  Duration: 00:00:02.16, start: 0.000000, bitrate: 593 kb/s
  
  Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 500x312 [SAR 1:1 DAR 125:78], 589 kb/s, 8.33 fps, 8.33 tbr, 12800 tbn, 25 tbc (default)
  
  Metadata:
  
  handler_name    : VideoHandler

  Because I use Laravel this is method for return media :

  public function getGifImage(Media $media)
  
  {
  
      $path = storage_path() . '/uploads/gif/' . $media->content;
  
      if (file_exists($path)) {
  
          return response()->download($path, null, [], null);
  
      }
  
  }

• How to upload 7MB GIF to Twitter's API

  22 février 2021, par randombits

  I have a bunch of JPEG frames that I use ImageMagick to stitch together into a GIF. The final product has the following type :

  


  GIF image data, version 89a, 1280 x 720

  


  This gives the effect of an animated GIF. My file sizes range anywhere between 6-8MB.

  


  If I upload this media manually to Twitter, it works great. Using TwitterOAuth PHP library found here when I attempt the following :

  


  $media = $twitterConnection->upload('media/upload', ['media' => 'my_file.gif');

  


  I get the following error :

  


  Image file size must be <= 5242880 bytes

  


  I have also tried uploading the file using Twitter's recommended Python large video library and that failed with the following :

  


  INIT
Media ID: 1362940800456351744
APPEND
4194304 of 7685061 bytes uploaded
APPEND
7685061 of 7685061 bytes uploaded
Upload chunks complete.
FINALIZE
{'media_id': 1362940800456351744, 'media_id_string': '1362940800456351744', 'media_key': '7_1362940800456351744', 'size': 7685061, 'expires_after_secs': 86400, 'processing_info': {'state': 'pending', 'check_after_secs': 1}}
Media processing status is pending
Checking after 1 seconds
STATUS
Media processing status is failed


  


  I am willing to use any platform/utility to get my video files uploaded to Twitter. What is my best bet to either :

  


  1 : Fix my file type to adhere to Twitter's requirements. Should it not be a GIF ? Should I be converting my still shot JPEG files to another format ?

  


  2 : Is there an API that Twitter has available that will allow the GIFs of these sizes to be uploaded ? Again, I can upload these files via the regular Twitter web UI client, but I cannot automate it via their API.

  


  How do I upload my GIF to Twitter using their API ?