how to know if dash content is AES-128 CTR or CBR encrypted stream

[Sebastian Dröge]

On Mon, 2016-11-07 at 18:01 +0530, Sanjay Gupta wrote:
> Hi Sebastian,
> PSSH Information inside the mspr tag in MPD is also contain in TENC
> atom and we are receiving this information in GST_EVENT_PROTECTION
> from qtdemux.
> 
> Your 2nd point seems to be a valid point for this problem. This
> content may not have PIFF atom inside MP4 container that's why piece
> of code I mentioned in qtdemux may not be executing. I will check on
> this.
> 
> Since this dash link is Playready encrypted Dash content, PIFF atom
> is valid for this use case? 

No as it does not contain one, as explained before you need to parse
this information from the Manifest.

In the meantime, a patch for that landed though:
http://cgit.freedesktop.org/gstreamer/gst-plugins-bad/commit/?id=dd0c56b4a2a506bdb2168441c18b791bc1369fb1

-- 
Sebastian Dröge, Centricular Ltd · http://www.centricular.com
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