Why not AdobeHds.php can't download NBC ‘meet the press’, but livestreamer can

[charmsoya]

Hello guys, this is my first time to try to download a HDS stream. If there is any error or incorrect, please point out .


What I want to download is ‘Meet the Press’ whose address is

http://www.nbc.com/meet-the-press/vi...121#vc210121=1

I found its corresponding HDS f4m is

http://nbcmpx-vh.akamaihd.net/z/vide...hd core=3.5.0

Then I use the latest AdobeHds.php to download,

php AdobeHDS.php --manifest "http://nbcmpx-vh.akamaihd.net/z/video/641/943/160226_2992970_Meet_the_Press__Feb__28__2016_mpx_, 1696,1296,896,696,496,306,240,150,64,.mp4.csmil/manifest.f4m?hdnea=st=1457256438~exp=1457269068~ac l=/z/video/641/943/160226_2992970_Meet_the_Press__Feb__28__2016_mpx_* ~id=28361036-d540-4481-a749-b4e0d5b2afe9~hmac=5d735e7977c814952d922706f5df0cd4 ea702d1a0b055f81578403ab150f8f03&g=SEKVBLWCWDJO&hd core=3.5.0"

But the output is "Access Denied! Unable to download fragments."

After trying for many times, it still didn't work, so I had to use 'Livestreamer', the command line is

livestreamer "hds://http://nbcmpx-vh.akamaihd.net/z/video/641/943/160226_2992970_Meet_the_Press__Feb__28__2016_mpx_, 1696,1296,896,696,496,306,240,150,64,.mp4.csmil/manifest.f4m?hdnea=st=1457256438~exp=1457269068~ac l=/z/video/641/943/160226_2992970_Meet_the_Press__Feb__28__2016_mpx_* ~id=28361036-d540-4481-a749-b4e0d5b2afe9~hmac=5d735e7977c814952d922706f5df0cd4 ea702d1a0b055f81578403ab150f8f03&g=SEKVBLWCWDJO&hd core=3.5.0 'pvswf=https://player.theplatform.com/p/NnzsPC/widget/select/media/guid/2410887629/2992970?fwsitesection=nbc_nbcnews_meet_the_press_v ideo_v15&excludeSharing=true'" best -o meet_the_press.flv

And it works and successfully downloaded the tv program.


Now I want to inquire, where is the problem of AdobeHDS.php? Is it caused by my wrong parameters or some others.