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Transcoding


How much transacoding space would a 900mb 720p HD original sized file would take once transcoded into different resolutions?

Cheers

18 Community Answers

Donni

JW Player Support Agent  
0 rated :

It depends on the quality and how many conversions are created.

David Samuel

User  
0 rated :

The quality is stated in my initial question which is "720p HD". The number of additional conversions would obviously going to be 2; 360p and 480p.

Donni

JW Player Support Agent  
0 rated :

720p is a resolution, the quality would depend on your encoding/bitrate etc and what codecs you use. If you log in to your JW Dashboard and select one of your uploaded videos, how many conversions do you see in your SOURCES tab?

David Samuel

User  
0 rated :

Sorry for the long delay in responding...
In this context, I'm assuming both "resolution" and "quality" are the same. In my dashboard I see 5 different conversions;

180p - 51 MB
270p - 72 MB
406p - 92 MB
720p - 173 MB
AAC Audio - 21 MB

David Samuel

User  
0 rated :

...also I find it strange that the original upload of 720 P and size of 131 MB turns out to become 173 MB in size when converted. Looks like the conversion engine added an additional 40 MB to the original file size.

Donni

JW Player Support Agent  
0 rated :

There are other variables such as your encoding profile and bitrate that need to be taken into account here. Since we use a standard that we find works on most devices, your original upload most likely had a smaller bitrate or profile that we had to increase. Here is an article that reviews the preferred format, dimensions and audio/video bitrates to use when uploading to our platform.

d...

User  
0 rated :

Understood, but does these variables also apply to externally hosted content (adding video url)

Donni

JW Player Support Agent  
0 rated :

If you are adding content as an external URL then we aren’t touching the content.

Abiola Samuel

User  
0 rated :

Does that mean transcoding would not be applied to externally hosted content?

Todd

JW Player Support Agent  
0 rated :

Yes. For externally-hosted content, we only redirect to your original URL.

Adding the external content to your account enables us to include the video in your analytics, but we do not copy the video or upload it to your account.

d...

User  
0 rated :

Then that leads to my next question: how would adaptive streaming work on externally hosted content when transcoding isn't applied?

Todd

JW Player Support Agent  
0 rated :

You would have to link to an externally-hosted HLS or DASH stream.

d...

User  
0 rated :

Using your API's, is it possible to restrict a subscriber to a particular video quality even when a higher quality is available to another subscriber? I mean can I sell video in terms of their quality, charging different prices for Basic and HD quality movies?

Todd

JW Player Support Agent  
0 rated :

Nothing built-in to our API for this, but my suggestion would be to limit the video sources you include in your setup() call.

If a “basic” customer has signed in, only include the 406p MP4. If the “HD” user has signed in, give them all the sources.

Abiola Samuel

User  
0 rated :

Great but can u please be more explicit?

Todd

JW Player Support Agent  
0 rated :

Sure, I can provide a code example. How are you currently embedding your videos on the page?

Abiola Samuel

User  
0 rated :

We've not launched yet. Just still at the design stage and gathering necessary information to help us make a better business decision.

Todd

JW Player Support Agent  
0 rated :

Ok. My suggestion would be to do the following:

1) load the cloud-hosted player library in the <head> of the page
2) add your <div> tag with a unique ID
3) use some custom code to figure out if a basic or an HD viewer has loaded the page
4) call jwplayer(‘your_div_id’).setup() and include the proper video sources based on their account level

Please see embed option #1 at https://support.jwplayer.com/customer/portal/articles/1406723-mp4-video-embed#fndtn-method-1 and https://support.jwplayer.com/customer/en/portal/articles/1710454-configuring-multiple-sources for more details and code examples

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