Re: HD 1080 or 720

2013-03-02 Thread Christopher Woods (CM)


On 01/03/2013 19:02, Shevek wrote:

On 1 March 2013 16:36, Rog  wrote:

I'm pretty sure I get 1080 from iPlayeer...
Ripper Street for example.

File sizes are about 1.15 GB per hour.


All Ripper Street have been 1280x720 from iPlayer

File size is not an indication of pixel dimensions, it is the bit-rate
which determines file size

Agreed. All HD content available on the main iPlayer service is 1280x720p25.

HOWEVER, the HD programme material available if you have a Sky+HD box 
... is 1920x1080i25 (I think, you get combing artifacts when you hit 
pause but this might also be because the Sky+HD boxes max out at 1080i 
on HDMI).


So, either BBC provides a feed exclusively to Sky's on-demand platform 
just for us lucky Sky customers, or there is another unadvertised 
version feed only available for specific devices or proxied through 
specific gateways. When I realised I Wiresharked some traffic as I 
downloaded a file, it was coming from a CDN. More investigation required.


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Re: HD 1080 or 720

2013-03-01 Thread Shevek
On 1 March 2013 16:36, Rog  wrote:
>
> I'm pretty sure I get 1080 from iPlayeer...
> Ripper Street for example.
>
> File sizes are about 1.15 GB per hour.
>

All Ripper Street have been 1280x720 from iPlayer

File size is not an indication of pixel dimensions, it is the bit-rate
which determines file size

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Re: HD 1080 or 720

2013-03-01 Thread Rog


- Original Message - 
From: "Nigel Roles" 

To: 
Sent: Friday, March 01, 2013 4:09 PM
Subject: Re: HD 1080 or 720



On 01/03/2013 02:40, M2 wrote:

Hi,


Programs transmitted on HD channels on Freeview and Freesat/Freesat 
from Sky are 1080 or upscaled from 720 to 1080?


As all the HD programs on iPlayer are only in 720 ...



I'm pretty sure I get 1080 from iPlayeer...
Ripper Street for example.

File sizes are about 1.15 GB per hour.

Rog




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Re: HD 1080 or 720

2013-03-01 Thread Nigel Roles

On 01/03/2013 02:40, M2 wrote:

Hi,


Programs transmitted on HD channels on Freeview and Freesat/Freesat 
from Sky are 1080 or upscaled from 720 to 1080?


As all the HD programs on iPlayer are only in 720 ...




BBC (1) HD is typically 1080i50. The content is typically captured in 
1080, and downscaled for iPlayer. Other broadcasters contributing to 
Free/You/View/Sat may differ. Anything >= 576 is considered HD.


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HD 1080 or 720

2013-03-01 Thread M2

Hi,


Programs transmitted on HD channels on Freeview and Freesat/Freesat from 
Sky are 1080 or upscaled from 720 to 1080?


As all the HD programs on iPlayer are only in 720 ...

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