Language code for subtitles in Python script for yt-dlp

[Pavel_47]

Hello,

When checking this video
https://www.arte.tv/fr/videos/108558-001-A/comment-voulons-nous-aimer/

for available subtitles I got this:

[info] Available subtitles for 108558-001-A:
Language Formats
fr       vtt
de       vtt
en       vtt
es       vtt
pl       vtt
it       vtt

But when I try to use any of these language codes (i.e. 'fr', 'en', etc.) in yt-dlp options in Python script, these codes aren't recognized.
Here is example of option for English:

ydl_opts = {'writesubtitles': True, 'subtitleslangs': 'en', 'embed_subs': True}

And here is log of yt-dlp:

[info] 108558-001-A: Downloading 1 format(s): VF-STF-2046+VF-STF-program_audio_0-VF
[info] There's no subtitles for the requested languages

Any comments ?
Thanks.

[A_n_g_e_l_a]

[Attachment 69235 - Click to enlarge]
Only one subtitle available and it is French. (other vtt is for thumbnails)
The master stream only offers French :-

[Attachment 69236 - Click to enlarge]
N_m3u8DL-RE https://arte-cmafhls.akamaized.net/am/cmaf/108000/108500/108558-001-A/230214111238/108...VF-STF_XQ.m3u8

[Pavel_47]

No !
If I don't specify the language, it's the English subtitles that are downloaded, not the French ones.

(env_video_dnld) sancho_pansa@MISSURI:~/env_video_dnld$ yt-dlp https://www.arte.tv/fr/videos/108558-001-A/comment-voulons-nous-aimer/ -s --list-subs
[ArteTV] Extracting URL: https://www.arte.tv/fr/videos/108558-001-A/comment-voulons-nous-aimer/
[ArteTV] 108558-001-A: Downloading JSON metadata
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[info] Available subtitles for 108558-001-A:
Language Formats
fr       vtt
de       vtt
de_sdh   vtt
en       vtt
es       vtt
pl       vtt
it       vtt
[info] 108558-001-A: Downloading 1 format(s): VF-STF-2046+VF-STF-program_audio_0-VF

[A_n_g_e_l_a]

No !
If I don't specify the language, it's the English subtitles that are downloaded, not the French ones.

There are only fr subtitles available in any streams open to me from the UK.

[Attachment 69238 - Click to enlarge]
Only french is listed by N_m3u8DL-RE
No subtitles at all are listed by yt-dlp -F https://arte-cmafhls.akamaized.net/am/cmaf/108000/108500/108558-001-A/230214111238/108...VF-STF_XQ.m3u8
And your

env_video_dnld) sancho_pansa@MISSURI:~/env_video_dnld$ yt-dlp https://www.arte.tv/fr/videos/108558-001-A/comment-voulons-nous-aimer/ -s --list-subs
[ArteTV] Extracting URL: https://www.arte.tv/fr/videos/108558-001-A/comment-voulons-nous-aimer/
[ArteTV] 108558-001-A: Downloading JSON metadata
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[info] Available subtitles for 108558-001-A:
Language Formats
fr       vtt
de       vtt
de_sdh   vtt
en       vtt
es       vtt
pl       vtt
it       vtt
[info] 108558-001-A: Downloading 1 format(s): VF-STF-2046+VF-STF-program_audio_0-VF

listed one subtitle - not English?

I am unable to help you further finding something that appears, from the UK, to not exist..

[iamghost]

I check in m3u8 there are no english subtitle m3u8 list at the bottom, only french,

#EXTM3U
#EXT-X-VERSION:7
#EXT-X-INDEPENDENT-SEGMENTS

#EXT-X-STREAM-INF:BANDWIDTH=2261800,AVERAGE-BANDWIDTH=1128048,VIDEO-RANGE=SDR,CODECS="avc1.4d401e,mp4a.40.2",RESOLUTION=768x432,FRAME-RATE=25.000,AUDIO="program_audio_0",SUBTITLES="subs"
medias/108558-001-A_v432.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=4396536,AVERAGE-BANDWIDTH=2046088,VIDEO-RANGE=SDR,CODECS="avc1.4d0028,mp4a.40.2",RESOLUTION=1920x1080,FRAME-RATE=25.000,AUDIO="program_audio_0",SUBTITLES="subs"
medias/108558-001-A_v1080.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=3965488,AVERAGE-BANDWIDTH=1925416,VIDEO-RANGE=SDR,CODECS="avc1.4d401f,mp4a.40.2",RESOLUTION=1280x720,FRAME-RATE=25.000,AUDIO="program_audio_0",SUBTITLES="subs"
medias/108558-001-A_v720.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=1400960,AVERAGE-BANDWIDTH=729448,VIDEO-RANGE=SDR,CODECS="avc1.4d401e,mp4a.40.2",RESOLUTION=640x360,FRAME-RATE=25.000,AUDIO="program_audio_0",SUBTITLES="subs"
medias/108558-001-A_v360.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=791480,AVERAGE-BANDWIDTH=430192,VIDEO-RANGE=SDR,CODECS="avc1.42e00d,mp4a.40.2",RESOLUTION=384x216,FRAME-RATE=25.000,AUDIO="program_audio_0",SUBTITLES="subs"
medias/108558-001-A_v216.m3u8

#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=775120,AVERAGE-BANDWIDTH=194488,VIDEO-RANGE=SDR,CODECS="avc1.4d401e",RESOLUTION=768x432,URI="medias/108558-001-A_v432_iframe_index.m3u8"
#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=1455208,AVERAGE-BANDWIDTH=315664,VIDEO-RANGE=SDR,CODECS="avc1.4d0028",RESOLUTION=1920x1080,URI="medias/108558-001-A_v1080_iframe_index.m3u8"
#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=1398368,AVERAGE-BANDWIDTH=313720,VIDEO-RANGE=SDR,CODECS="avc1.4d401f",RESOLUTION=1280x720,URI="medias/108558-001-A_v720_iframe_index.m3u8"
#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=512808,AVERAGE-BANDWIDTH=131224,VIDEO-RANGE=SDR,CODECS="avc1.4d401e",RESOLUTION=640x360,URI="medias/108558-001-A_v360_iframe_index.m3u8"
#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=198248,AVERAGE-BANDWIDTH=55168,VIDEO-RANGE=SDR,CODECS="avc1.42e00d",RESOLUTION=384x216,URI="medias/108558-001-A_v216_iframe_index.m3u8"

#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="program_audio_0",LANGUAGE="fr",NAME="VF",AUTOSELECT=YES,DEFAULT=YES,URI="medias/108558-001-A_aud_VF-FRA_4.m3u8"

#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="VF-FR",DEFAULT=YES,AUTOSELECT=YES,FORCED=NO,LANGUAGE="fr",URI="medias/108558-001-A_st_VF-.m3u8"

but i have copy from https://arte-cmafhls.akamaized.net/am/cmaf/108000/108500/108558-001-A/230214111238/med..._st_VO-ANG.vtt
and save srt file via subtitle edit
english subtitle https://files.videohelp.com/u/301156/en.srt

[Pavel_47]

If you have Python on your PC, you can try this:

1. install yt-dlp with pip
2. execute the following small script

import yt_dlp
link = ['https://www.arte.tv/fr/videos/108558-001-A/comment-voulons-nous-aimer/']
ydl_opts = {'skip_download': True, 'writesubtitles': True}
with yt_dlp.YoutubeDL(ydl_opts) as ydl:
    ydl.download(link)

You will see the file L’enfant de la liberté [108558-001-A].en.vtt downloaded on your PC
P.S. In the title of this post the keyword is "Python". I'm looking for a solution with Python, NOT with other tools

[Pavel_47]

There are only fr subtitles available in any streams open to me from the UK.

To emulate another environment, maybe just change the language here...
https://i.postimg.cc/28tkXm4h/Screenshot-from-2023-02-15-12-50-19.png

[Pavel_47]

There are only fr subtitles available in any streams open to me from the UK.
I am unable to help you further finding something that appears, from the UK, to not exist..

If you have yt-dlp installed, can you execute the following command (from command line):

yt-dlp https://www.arte.tv/fr/videos/108558-001-A/comment-voulons-nous-aimer/ -s --list-subs

[A_n_g_e_l_a]

If you have yt-dlp installed, can you execute the following command (from command line):

yt-dlp https://www.arte.tv/fr/videos/108558-001-A/comment-voulons-nous-aimer/ -s --list-subs

I have already told you I only see ONE subtitle offered.

yt-dlp https://www.arte.tv/fr/videos/108558-001-A/comment-voulons-nous-aimer/ -s --list-subs
[ArteTV] 108558-001-A: Downloading JSON metadata
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[ArteTV] 108558-001-A: Downloading m3u8 information
[info] Available subtitles for 108558-001-A:
Language Formats
fr       vtt
de       vtt, vtt
en       vtt
es       vtt
pl       vtt
it       vtt
[info] 108558-001-A: Downloading 1 format(s): VF-STF-2046+VF-STF-program_audio_0-VF

[Pavel_47]

I have already told you I only see ONE subtitle offered.

I asked you to try "WITH MY METHOD" i.e. using yt-dlp ... as yt-dlp (along with Python) was one of keywords of title.
If you can't, no problem.
BTW, yt-dlp request displays 6 languages: 'fr', 'en', 'de', 'es', 'pl', 'it' ... not just one.
Perhaps the method you use for checking subtitles just CAN'T access to all subtitles.

[A_n_g_e_l_a]

Just what is the problem? You do not want English subtitles which seems to be your default. N_m3u8DL-RE downloads subtitles in French, which I assume you do want, so use N_m3u8DL-RE. Case closed.


If you want only to use python then wrap the command for N_m3u8DL-RE inside an os.system call.

If you think you have a problem with yt-dlp then ask here https://discord.gg/tvDChKtK

[iamghost]

i know you want python
for yt-dlp can download if you change fr,de,en,es,pl,it after --write-sub **

yt-dlp https://www.arte.tv/fr/videos/108558-001-A/comment-voulons-nous-aimer --no-download --write-sub en

[Pavel_47]

i know you want python
for yt-dlp can download if you change fr,de,en,es,pl,it after --write-sub **

yt-dlp https://www.arte.tv/fr/videos/108558-001-A/comment-voulons-nous-aimer --no-download --write-sub en

Yes !
Here's the gist of the problem: you can download the "GOOD" subtitle file using yt-dlp from the command line, but you can't do the same using yt-dlp in Python.

[Pavel_47]

Just what is the problem? You do not want English subtitles which seems to be your default. N_m3u8DL-RE downloads subtitles in French, which I assume you do want, so use N_m3u8DL-RE. Case closed.
If you want only to use python then wrap the command for N_m3u8DL-RE inside an os.system call.
If you think you have a problem with yt-dlp then ask here https://discord.gg/tvDChKtK

What I want, is quite explicitly mentioned in the title:

Language code for subtitles in Python script for yt-dlp

My request assumes that I already know how to download subtitles, but facing a language code problem. In the 1st post of this thread, I explained the problem in more detail: although I specify a correct language code (e.g. "en", fr", etc.), yt-dlp is not able to recognize it. When I don't specify the language code at all, but ask to download subtitles, the English subtitles (i.e. 'en') are downloaded

Well, in short, my request was not intended to be understood as follows:

I want to know how to download subtitle file from website

Sincerely.

[ElCap]

i know you want python
for yt-dlp can download if you change fr,de,en,es,pl,it after --write-sub **

yt-dlp https://www.arte.tv/fr/videos/108558-001-A/comment-voulons-nous-aimer --no-download --write-sub en

Yes !
Here's the gist of the problem: you can download the "GOOD" subtitle file using yt-dlp from the command line, but you can't do the same using yt-dlp in Python.

sounds like a valid reason to raise an issue with yt-dlp via their github

[Pavel_47]

The problem resolved !
The language code(s) must be list object, i.e. instead of

ydl_opts = {'writesubtitles': True, 'subtitleslangs': 'en', 'embed_subs': True}

one must use

ydl_opts = {'writesubtitles': True, 'subtitleslangs': ['en'], 'embed_subs': True}