How to lazy transform an hevc/mkv video

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Benno Baumgartner

• August 13, 2018 09:54

 Hello

I need to transform hevc/mkv videos to something that can be played in all browsers (mp4) It works fine for smaller videos, but the videos can become quite large (up to 500MB) and I need to transfer them eagerly lazy. Here is what I'm trying todo (latest Java client):

 

Map result = cloudinary.uploader()
        .uploadLarge(IOUtils.toByteArray(storageProvider.get(media)),
        ObjectUtils.asMap(
                "resource_type", "auto",
                "eager", Collections.singletonList(new Transformation().videoCodec("mp4")),
                "eager_async", true,
                "eager_notification_url", "http://mysite/rest/upload",
                "notification_url", "http://mysite/rest/upload"));

I get back something like this:

 

{  
   "eager":[  
      {  
         "batch_id":"bb72700dd25c6c8ac581feac0eb7d16cf25c5f6a4c919d172739423f88a54673",
         "secure_url":"https://res.cloudinary.com/qnnect/video/upload/vc_mp4/v1534153796/eudjik5qmj3pqmykngsd.mkv",
         "url":"http://res.cloudinary.com/qnnect/video/upload/vc_mp4/v1534153796/eudjik5qmj3pqmykngsd.mkv",
         "status":"processing"
      }
   ],
   "signature":"bc17ba1243d0ee4c83722aa2f791dc855a794683",
   "created_at":"2018-08-13T09:49:56Z",
   "video":{  
      "codec":"hevc",
      "dar":"16:9",
      "level":186,
      "pix_format":"yuv420p",
      "profile":"Main"
   },
   "type":"upload",
   "public_id":"eudjik5qmj3pqmykngsd",
   "duration":734.058,
   "bit_rate":1152839,
   "pages":0,
   "original_filename":"file",
   "placeholder":false,
   "audio":{  
      "codec":"aac",
      "channels":6,
      "channel_layout":"5.1",
      "frequency":48000
   },
   "height":720,
   "rotation":0,
   "format":"mkv",
   "resource_type":"video",
   "secure_url":"https://res.cloudinary.com/qnnect/video/upload/v1534153796/eudjik5qmj3pqmykngsd.mkv",
   "version":1534153796,
   "frame_rate":24.0,
   "done":true,
   "url":"http://res.cloudinary.com/qnnect/video/upload/v1534153796/eudjik5qmj3pqmykngsd.mkv",
   "tags":[  

   ],
   "is_audio":false,
   "bytes":105781364,
   "width":1280,
   "etag":"faddc904f52765f1e47084f729f6a703"
}

 

When I open https://res.cloudinary.com/qnnect/video/upload/vc_mp4/v1534153796/eudjik5qmj3pqmykngsd.mkv

I get in the response header:

x-cld-error:

Video is too large to process synchronously, please use an eager transformation with eager_async=true to resolve

 

Which is exactly what I did. Is this a bug? Am I doing something wrong here? I'm confused.

 

Thanks for your support

Benno

0

• 

  Yakir Perlin

  • August 13, 2018 11:55

  Hi,

  Could you please try with "resource_type" = "video" and let me know if it works for you?

  Cheers,

  Yakir

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• 

  Benno Baumgartner

  • August 13, 2018 12:05

  Hi Yakir

   

  Sorry, same result, i.e. https://res.cloudinary.com/qnnect/video/upload/vc_mp4/v1534161843/qmcjucbsrlbieudl149r.mkv

   

  Regards

  Benno

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• 

  Yakir Perlin

  • August 16, 2018 10:41

  ok, thanks for the update.

  I checked the issue, and that should work:

  Map result = cloudinary.uploader()
          .uploadLarge(IOUtils.toByteArray(storageProvider.get(media)),
          ObjectUtils.asMap(
                  "resource_type", "video",
                  "eager", Collections.singletonList(new Transformation().videoCodec("h264").format("mp4"),
                  "eager_async", true,
                  "eager_notification_url", "http://mysite/rest/upload",
                  "notification_url", "http://mysite/rest/upload"));

  Please let me know if it works for you.

   

  Cheers

   

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• 

  Benno Baumgartner

  • August 16, 2018 13:02

  Hi Yakir

   

  Thanks for your help. There is no format method on Transformation, so I try fetchFormat. But the result remains the same:

  i.e. http://res.cloudinary.com/qnnect/video/upload/f_mp4,vc_h264/v1534424367/hhvnhvzd4y0kxrxbg8v3.mp4

  X-Cld-Error:

  Video is too large to process synchronously, please use an eager transformation with eager_async=true to resolve

   

  Any Idea?

  Best Regards

  Benno

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  Yakir Perlin

  • August 20, 2018 06:58

  Yes - you're right, it's fetchformat. 

  Anyway, I checked the logs, and while we tried to eagerly transform your video - we sent you this callback:{"notification_type":"eager","eager":[{"transformation":"f_mp4,vc_h264","status":"failed","reason":"Cannot generate H.264 videos longer than 720 - please contact support."}]

  This error is returned because videos longer than 12 minutes may require special licensing terms (unrelated to MPEG-DASH or HLS transformation).
  I've now enabled your account to be able to transform long videos, however, please take into account is mp4-h264 license terms, that come into play when videos are longer than 12 minutes. For more information:
  http://www.mpegla.com/main/programs/avc/Documents/avcweb.pdf

  Please try again and let me know if it works for you.

  Cheers

  --Yakir

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  Benno Baumgartner

  • August 20, 2018 07:23

  Hi Yakir

   

  Thank you very much. I can confirm that it works now! Technically at least, regarding the license I have to ask business/lawyer. I doubt that our customer is willing to pay license fees for this though.

   

  Benno

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