Discovery Plus

[Willow5]

Does anyone know how to download from Discovery Plus ? I tried their mpd file but keep getting the following when using the command --allow-u -f:

ytdlp.exe: error: You must provide at least one URL.
Type yt-dlp --help to see a list of all options.

Also when I try to download the mpd file, it downloads 2 files of 12Mb not ~2Gb

Edit: It is because the mpd I can find only relates to the adverts, not the main video. I cannot seem to find the mpd associated with the main video. The first video file is a DASH file like master-textstream_eng=1000.dash

[darkw4v3]

It's fairly trivial.

Post a link to the page you would watch the video on.

[Willow5]

Thank you, this is the link: https://www.discoveryplus.com/gb/video/wheeler-dealers/bmw-z1

[codehound]

I have a genuine dscp gb account and this does not appear to be a genuine url (?) ...

[Willow5]

I also have a DSCP GB account and it is the deep link to S11 E12 which works fine for me

[codehound]

If it works fine then why are you requesting help ?

[Willow5]

Hi, I wish to permanently download this episode. I can stream it fine but cannot download using the mpd file. I was asked to post a link to the page I would usually watch the video on earlier in this thread.

[codehound]

Hi, I wish to permanently download this episode. I can stream it fine but cannot download using the mpd file. I was asked to post a link to the page I would usually watch the video on earlier in this thread.

If you give me a genuine GB url I can 'permanently' download this for you or give you the keys ...?

[Willow5]

Hi, I am not sure why it is not genuine for you as it is genuine for me but if you can locate S11 E12 and help further I would appreciate it

[codehound]

Hi, I am not sure why it is not genuine for you as it is genuine for me but if you can locate S11 E12 and help further I would appreciate it

--key 84e4a461cb99474d900df4ccb3a77974:18be192cb1d0447fb7c114385726f6ef

[Willow5]

Thank you very much. Is there also an mpd link as the one I located was for a discoveryplus ad

[Willow5]

Hi, please can someone help further with the mpd file?

[darkw4v3]

Use the Dev Tools in your browser to pull the mpd off the wire as it comes down.

[Willow5]

Hi, ok I finally found the various formats of the mpd by doing the --allow-u -F command:


[Attachment 66736 - Click to enlarge]

However, when I then go to download any specific video, the video file only appears to be ~400Mb but this is a 40 minute HD video so I am expecting around 2Gb.

OK I think I have found that the audio and video parts are split into 4 segments themselves, hence the -0,-1,-2 and -3! How can I merge the video file into one complete file and the audio parts into one complete file before performing an FFMPEG on the whole lot ?

[A_n_g_e_l_a]

OK I think I have found that the audio and video parts are split into 4 segments themselves, hence the -0,-1,-2 and -3! How can I merge the video file into one complete file and the audio parts into one complete file before performing an FFMPEG on the whole lot ?

You don't.

First do your decryption of the parts in the normal way. Then make a file listing the audio parts from first to last, each on new line.

ffmpeg -f concat <a file listing the parts> -c copy allAudio.m4a

Do the same for video and then use ffmpeg to copy the Allaudio and Allvideo streams together. Note the batchfile listing the parts. It was the only way I could get concatenation to work with ffmpeg. Someone is likely to have other tool suggestions for this though.

HOWEVER NOT WITHSTANDING....!! I think I read in the yt-dlp release notes that yt-dlp now copes with segmented videos. I leave you to look that up and perhaps come back and tell us all.

[Willow5]

Thank you, I did this last night but there are long gaps between both audio and video segments so a 44 minute programme becomes 1hr15 and the gaps in between are slient / blank video. I believe the reason for this is because each of the segments have different start timestamps. Is there any way of ffmpeg concatenating the videos without inserting these gaps between the segments ?

[ElCap]

However, when I then go to download any specific video, the video file only appears to be ~400Mb but this is a 40 minute HD video so I am expecting around 2Gb.

OK I think I have found that the audio and video parts are split into 4 segments themselves, hence the -0,-1,-2 and -3! How can I merge the video file into one complete file and the audio parts into one complete file before performing an FFMPEG on the whole lot ?

n_m3u8 will download all the parts into one video and one audio, then you need to decrypt and mux.

or you use the beta n_m3u8-re - if you give the key as an argument you can get it to download, combine, decrypt and mux in one command.

[A_n_g_e_l_a]

Thank you, I did this last night but there are long gaps between both audio and video segments so a 44 minute programme becomes 1hr15 and the gaps in between are slient / blank video. I believe the reason for this is because each of the segments have different start timestamps. Is there any way of ffmpeg concatenating the videos without inserting these gaps between the segments ?

Forgive me; but No. Read exactly what I said. If you do as you described in your post you will get the timings wrong.

Decode all fragments before doing anything else.
THEN concatenate into an audio and video stream
finally merge both streams with ffmpeg.

If you do it the way I describe exactly you will get the timings right.

Been there and got the tee-shirt for removing server-side-included-adverts from stv.tv. The only way was to download part videos, throw away all the small video files (adverts) and re-assemble the rest. I do not have timing problems.

[Willow5]

Hi, this is exactly the same steps that I followed (which has gaps):

Created mylist.txt which has the pre-decoded segments in the file:

file 'avp1_dec.mp4'
file 'avp2_dec.mp4'
file 'avp3_dec.mp4'
file 'avp4_dec.mp4'

Ran the ffmpeg command:

ffmpeg -f concat -i mylist.txt -c copy video.mp4

video.mp4 (is created at 1hour 15 minutes; should be 44 minutes). When I play it back, first 2 segments are together but then there is a gap between 2 and 3 and 3 and 4

[A_n_g_e_l_a]

Hi, this is exactly the same steps that I followed (which has gaps):

Created mylist.txt which has the pre-decoded segments in the file:

file 'avp1_dec.mp4'
file 'avp2_dec.mp4'
file 'avp3_dec.mp4'
file 'avp4_dec.mp4'

Ran the ffmpeg command:

ffmpeg -f concat -i mylist.txt -c copy video.mp4

video.mp4 (is created at 1hour 15 minutes; should be 44 minutes). When I play it back, first 2 segments are together but then there is a gap between 2 and 3 and 3 and 4

Memory playing tricks. So I have just looked up what my stv.tv downloader does

First decrypt everything.
ffmpeg merge each part video with its corresponding part audio.
then you concatenate all the part video mp4's in the correct order to produce your final video.


here is a fragment of my program that reassembles part files:

print("===========================\n\n Removing adverts\n\n===========================")
for filename in os.listdir(directory):
f = os.path.join(directory, filename)
# checking if it is a file
# remove files smaller tha 1M audio and 15M video
if os.path.isfile(f):
if f.endswith('.m4a') and (os.path.getsize(f) < 1000000):
os.remove(f)
if f.endswith('.mp4') and (os.path.getsize(f) < 15000000):
os.remove(f)
print("Done.")
time.sleep(2)


# decrypt and preface decrypted files with'un' to make 'unencrypted'
print("==============================\n\n Decrypting\n\n==============================")
for f in os.listdir(path=None):
if f.endswith('.m4a'):
#print("ends with m4a")
os.system(f"mp4decrypt {key} {f} un{f}")
if f.endswith('.mp4'):
os.system(f"mp4decrypt {key} {f} un{f}")
print("Done.")
time.sleep(2)
#remove all encrypted files
print("==============================\n\n Decrypting finished\nCopying encrypted files to cache\n\n==============================")
# these need to either be removed as here or moved out of the current folder so as not to interfere with merging.
if not os.path.exists(f"{directory}/output/cache"):
os.system("mkdir -p ./output/cache")
os.system("mv encryptVid.* encryptedAud* ./output/cache")
print("Done.")
time.sleep(2)


# merge files: join corresponding video and audio to make a sequence of part files.
print("==============================\n\n Merging A & V to part mp4 videos\n\n==============================")
time.sleep(2)
audiolist=[]
videolist=[]
for f in os.listdir(path=None):
if f.endswith('.m4a'):
audiolist.append(f)
if f.endswith('mp4'):
videolist.append(f)
for i in range(len(audiolist)):
os.system(f"ffmpeg -i {audiolist[i]} -i {videolist[i]} -acodec copy -vcodec copy part{i}.mp4")
print("Done.")
time.sleep(2)

#The way yt-dlp downloads high serial numbered parts first on my machine, means part files 0,1,2 etc need reversing to correct the viewing order.
#I now know there is a yt-dlp command to reverse file download order but this works well enough.
print("==============================\n\n Final assembly\n\n==============================")
time.sleep(2)
filelist = []
file = open("mylist.txt", "a")
for f in os.listdir(path=None):
if f.startswith("part"):
filelist.append(f)
# needs reverse order of part files
filelist.reverse()
for i in range(len(filelist)):
file.write(f"file '{filelist[i]}'\n")
file.close()
os.system(f"ffmpeg -f concat -i mylist.txt -c copy {videoname} ")
file = open(f"{partname}.key", 'w')
file.write(key)
file.close()
# add subs
os.system(f"ffmpeg -i {videoname} -i subs.en.srt -acodec copy -vcodec copy -c mov_text -metadata:0 language=english {partname}_subs.mp4")
print("Done.")
time.sleep(2)

[Willow5]

That worked many thanks ! last question, how do you get the widevine keys for DiscoveryPlus please ?

[A_n_g_e_l_a]

Darkw4v3 says its fairly trivial why not try and see what you can do. You've had enough spoon-feeding for today.

[Willow5]

Thanks, does it involve waiting for a discord account to be verified ? If so then I know what I need to do

[darkw4v3]

does it involve waiting for a discord account to be verified

lol, that all depends on whether you want to learn to fish, or have someone throw you scraps - if they deem you worthy.

[darkw4v3]

That worked many thanks ! last question, how do you get the widevine keys for DiscoveryPlus please ?

I looked at my code to see if I was doing anything special for D+ around license acquisition, and I'm not. It's no different than most other wv based DRM.