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Exemple de boutons d’action pour une collection collaborative
27 février 2013, par
Mis à jour : Mars 2013
Langue : français
Type : Image
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Exemple de boutons d’action pour une collection personnelle
27 février 2013, par
Mis à jour : Février 2013
Langue : English
Type : Image
Autres articles (82)
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Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
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MediaSPIP Player : problèmes potentiels
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Supporting all media types
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Sur d’autres sites (5882)
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Restream youtube live channel wth vlc or ffmpeg`
25 juin 2014, par AndyIs it possible to restream a channel with vlc or ffmpeg ? I dont think neither will take youtube url as input for restreaming - would there need to be url snooping or w/e its called to get the proper input url ?
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How to convert messed-up .vtt sub file from youtube-dl —write-auto-sub download ?
27 septembre 2023, par perry_the_pythonMy goal is to download a YouTube video with auto-generated subtitles in a separate file like
.vtt
,.srt
, etc.

I am currently trying to achieve this with
youtube-dl
but I am open to other solutions if needed.

When I run the following command, it downloads the video as
.mp4
(which is fine) and a separate.vtt
file, but the.vtt
seems to be messed-up somehow and displays all the text for the whole clip at once instead of the specified times.

Command I am running :


youtube-dl --write-auto-sub https://www.youtube.com/watch?v=Roc89oOZOF4&list=PLJBo3iyb1U0eNNN4Dij3N-d0rCJpMyAKQ&index=45



Downloads this .vtt :


WEBVTT
Kind: captions
Language: en

00:00:05.960 --> 00:00:08.290 align:start position:0%
 
thank <00:00:06.003><c>you </c><00:00:06.046><c>ah </c><00:00:06.089><c>crap </c><00:00:06.132><c>well </c><00:00:06.175><c>looks </c><00:00:06.218><c>like </c><00:00:06.261><c>the </c><00:00:06.304><c>good </c><00:00:06.347><c>Lord </c><00:00:06.390><c>just </c><00:00:06.433><c>sent </c><00:00:06.476><c>me </c><00:00:06.519><c>a </c><00:00:06.562><c>conversation </c><00:00:06.605><c>starter </c><00:00:06.648><c>come </c><00:00:06.691><c>here </c><00:00:06.734><c>Jesse </c><00:00:06.777><c>come </c><00:00:06.820><c>get </c><00:00:06.863><c>the </c><00:00:06.906><c>ball </c><00:00:06.949><c>hmm</c>

00:00:08.290 --> 00:00:10.549 align:start position:0%
thank you ah crap well looks like the good Lord just sent me a conversation starter come here Jesse come get the ball hmm
 

00:00:10.549 --> 00:00:13.070 align:start position:0%
 
 

00:00:13.070 --> 00:00:15.470 align:start position:0%
 
 

00:00:15.470 --> 00:00:23.750 align:start position:0%
 
 

00:00:23.750 --> 00:00:23.760 align:start position:0%
 
 

00:00:23.760 --> 00:00:26.480 align:start position:0%
 






I have read that this may be done on purpose by YouTube.


Even if this is true, is there any way to convert this
.vtt
to a usable format or simply download correctly-formatted auto-generated subtitles from YouTube ?

Python, FFMPEG, cmd-line preferred, but anything is helpful !


Thanks ! Any and all assistance is greatly appreciated !


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How can I improve the frame rate of my Raspberry Pi to YouTube stream ?
2 août 2021, par RDownsI am using a Raspberry Pi 4 2GB to live stream to YouTube.


The performance is pretty poor at the moment as I am trying to go through terminal and I feel the setting's are not correct. Performance is OK however if I go directly through YouTube studio and use the 'Webcam' option instead of 'Stream'.


These are the settings that I am currently using :


raspivid -o - -t 0 -vf -hf -fps 30 -b 6000000 | ffmpeg -threads 0 -f v4l2 -i /dev/video0 -ar 44100 -ac 2 -acodec pcm_s16le -f s16le -ac 2 -i /dev/zero -acodec aac -ab 128k -strict experimental -s 640x480 -b 6000000 -aspect 16:9 -vcodec h264_omx -vb 820k -pix_fmt yuv420p -g 60 -r 30 -f


What options can I change in this command to improve the frame rate and give better performance ?