Re: iPrima plugin

jimmy1222 wrote:
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> iprima.cz plugin for FRD stopped working today morning.
> They changed the whole web pages (new look) -
> ... and they added advertising before the (main) video starts playing.

Yes, I can confirm that jimmy's first sample link

http://play.iprima.cz/bursikovy-brikety

fails to be downloaded with v1.5.0 of iprima.cz frp plugin.
The GUI shows the following error:
No string between '"zoneGEO":' and ',' was found
"app.log" is attached...

I first thought that "zoneGEO" implied the programme
was simply blocked for my non-Czech IP, so I went ahead
and tried the link in Firefox:
1. The new iPrima website doesn't like my adblocker
(uBlock Origin), so I had to disable it on "play.iprima.cz"
in order to load the embedded player (wouldn't otherwise) ...
2. After a set of 3-4 ads (as reported by jimmy),
the programme started playing fine, so was not geo-blocked!

> Will (it) be possible to download RTMP in HD again?
> (FLV file in 1280x720p) ?

I did some preliminary tests and, at least on Firefox on a PC,
RTMP is not being used; the default streaming method is
(unencrypted) AppleHLS. Through Webconsole I sniffed for "m3u8"
URLs and found the master playlist to be:

http://prima-vod-prep.service.cdn.cra.cz/vod_Prima/_definst_/0001/9944/cze-ao-sd1-sd2-sd3-sd4.smil/playlist.m3u8

If you open that in an editor, you'll see
that it points to four "child" playlists, all of whom are
standard def (720x400p), the best quality being:

#EXT-X-STREAM-INF:BANDWIDTH=1667072,RESOLUTION=720x400
chunklist_b1667072.m3u8

You can download that best quality via a recent build of FFmpeg:

ffmpeg -loglevel 8 -stats -i "http://prima-vod-prep.service.cdn.cra.cz/vod_Prima/_definst_/0001/9944/cze-ao-sd1-sd2-sd3-sd4.smil/chunklist_b1667072.m3u8" -c copy "bursikovy-brikety.ts"

(776 MiB file, V=1500Kbps-400p, A=128Kbps)
Optional remux to MP4 container:

ffmpeg -loglevel 16 -stats -i "bursikovy-brikety.ts" -c copy -bsf:a aac_adtstoasc -f mp4 -movflags faststart "bursikovy-brikety.mp4"

(709 MiB file, due to smaller overhead...)
The embedded player does not provide a setting
for HD stream (even when "Video Quality" is set
manually to "MAX", no HD playlists are sniffed... :S )
Perhaps HD is not offered to free users, it could
well be 720p streams are reserved for those that
do not want the ads and register with their
"Prima Premium PLAY" service (which I would guess
is a paid one...:-( )

I'm pretty sure tong2shot will come up with a solution
for at least downloading the SD HLS streams, more
research is needed whether (hidden) RTMP streams
do exist and whether HD is even still available...