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Autres articles (92)
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MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...) -
ANNEXE : Les plugins utilisés spécifiquement pour la ferme
5 mars 2010, parLe site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)
Sur d’autres sites (7101)
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How to convert a script from youtube-dl
16 janvier 2020, par danilshikThere is a bash/batch file script :
ffmpeg -i `youtube-dl https://www.twitch.tv/zero` -vf fps=fps=60, scale=1920x1080 -c:v libx264 -b:v 500k -preset superfast -c:a copy -f segment -segment_time 60 test.mp4
The script is not mine, but it allows you to record video with a constant frame rate of parts. Unfortunately in cmd it does not work for me. Already tried everything, I do not know what the error is.
I am getting
No such file or directory
.Tried
'youtube-dl https://www.twitch.tv/zero'
, the same errorI tried
"youtube-dl https://www.twitch.tv/zero"
, error :youtube-dl https://www.twitch.tv/zero: Invalid argument
What am I doing wrong ? The author assures that he works on linux
Update
I tried
ffmpeg -i $ (youtube-dl -f best -g https://www.twitch.tv/zero) ....
The same errorUpdate 2
Why the video size exceeds 500 Mb ? What am I doing wrong ?
Code
cls && @echo off & setlocal enableextensions enabledelayedexpansion
set "_tag_00=https://www.twitch.tv/avagg"
set "_tag_01=--ignore-errors --abort-on-error --ignore-config --flat-playlist --geo-bypass "
set "_tag_02=--restrict-filenames --no-part --no-cache-dir --write-thumbnail --prefer-ffmpeg "
set "_tag_03=--ffmpeg-location .\ --postprocessor-args -i "%%(title)s.%%(ext)s" -vf fps^=fps^=60^,"
set "_tag_04=scale^=1920x1080 -c:v libx264 -b:v 500k -preset superfast -c:a copy -f segment -segment_time "
set "_tag_05=60 %%^(title^)s.mp4"
youtube-dl "!_tag_00!" -f "bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best" -o "%%^(title^)s.%%^(ext^)s" !_tag_1!!_tag_2!!_tag_3!!_tag_4!!_tag_5!
PauseUpdate 3
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Python Youtube ffmpeg Session Has Been Invalidated
14 août 2020, par DanielI get the following error while I'm playing YouTube audio with my bot



[tls @ 0000024ef8c4d480] Error in the pull function.
[matroska,webm @ 0000024ef8c4a400] Read error
[tls @ 0000024ef8c4d480] The specified session has been invalidated for some reason.
 Last message repeated 1 times




It seems like YouTube links expire ? I don't really know but I need to fix this issue. This is my code :



class YTDLSource(discord.PCMVolumeTransformer):

 def __init__(self, source, *, data, requester):
 super().__init__(source)
 self.requester = requester

 self.title = data['title']
 self.description = data['description']
 self.uploader = data['uploader']
 self.duration = data['duration']
 self.web_url = data['webpage_url']
 self.thumbnail = data['thumbnail']

 def __getitem__(self, item: str):
 return self.__getattribute__(item)

 @classmethod
 async def create_source(cls, ctx, player, search: str, *, loop, download=True):
 async with ctx.typing():
 loop = loop or asyncio.get_event_loop()
 to_run = partial(ytdl.extract_info, url=search, download=download)
 raw_data = await loop.run_in_executor(None, to_run)

 if 'entries' in raw_data:
 # take first item from a playlist
 if len(raw_data['entries']) == 1:
 data = raw_data['entries'][0]
 else:
 data = raw_data['entries']
 #loops entries to grab each video_url
 total_duration = 0
 try:
 for i in data:
 webpage = i['webpage_url']
 title = i['title']
 description = i['description']
 uploader = i['uploader']
 duration = i['duration']
 thumbnail = i['thumbnail']
 total_duration += duration

 if download:
 source = ytdl.prepare_filename(i)
 source = cls(discord.FFmpegPCMAudio(source), data=i, requester=ctx.author)
 else:
 source = {'webpage_url': webpage, 'requester': ctx.author, 'title': title, 'uploader': uploader, 'description': description, 'duration': duration, 'thumbnail': thumbnail}

 player.queue.append(source)

 except Exception as e:
 print(e)
 return

 embed=discord.Embed(title="Playlist", description="Queued", color=0x30a4fb, timestamp=datetime.now(timezone.utc))
 embed.set_author(name=ctx.author.display_name, icon_url=ctx.author.avatar_url)
 embed.set_thumbnail(url=data[0]['thumbnail'])
 embed.add_field(name=raw_data['title'], value=f"{len(data)} videos queued.", inline=True)
 embed.set_footer(text=raw_data["uploader"] + ' - ' + '{0[0]}m {0[1]}s'.format(divmod(total_duration, 60)))
 await ctx.send(embed=embed)
 return

 embed=discord.Embed(title="Playlist", description="Queued", color=0x30a4fb, timestamp=datetime.now(timezone.utc))
 embed.set_author(name=ctx.author.display_name, icon_url=ctx.author.avatar_url)
 embed.set_thumbnail(url=data['thumbnail'])
 embed.add_field(name=data['title'], value=(data["description"][:72] + (data["description"][72:] and '...')), inline=True)
 embed.set_footer(text=data["uploader"] + ' - ' + '{0[0]}m {0[1]}s'.format(divmod(data["duration"], 60)))
 await ctx.send(embed=embed)

 if download:
 source = ytdl.prepare_filename(data)
 else:
 source = {'webpage_url': data['webpage_url'], 'requester': ctx.author, 'title': data['title'], 'uploader': data['uploader'], 'description': data['description'], 'duration': data['duration'], 'thumbnail': data['thumbnail']}
 player.queue.append(source)
 return

 source = cls(discord.FFmpegPCMAudio(source), data=data, requester=ctx.author)
 player.queue.append(source)


 @classmethod
 async def regather_stream(cls, data, *, loop):
 loop = loop or asyncio.get_event_loop()
 requester = data['requester']

 to_run = partial(ytdl.extract_info, url=data['webpage_url'], download=True)
 data = await loop.run_in_executor(None, to_run)

 return(cls(discord.FFmpegPCMAudio(data['url']), data=data, requester=requester))




I'm using the rewrite branch of discord.py for the bot.
I'm not sure if I need to provide more details ? Please let me know, I really need to get this fixed...


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How to stream H.264 bitstream to browser
21 janvier 2019, par BobtheMagicMooseThis is a followup to https://raspberrypi.stackexchange.com/questions/93254/stream-usb-webcam-with-audio?noredirect=1#comment150507_93254
I, like many other brave tinkerers before me, thought it would be a simple task to take an old USB camera (c920) can pair it with a raspberry pi to make a network streaming device (e.g., baby monitor). As those that have gone before me, I have now realized (after two days of tearing my hair out), that this is an extremely complicated task.
Problem statement : I have a raspberry pi zero and a c920 webcam. I want to use the H.264 bitstream from the webcam and serve it on the pi without transcoding it (the feeble processor would really struggle). I want to combine the video stream with its audio and send it over to a browser (phone, tablet, pc - something HTML5 without NAPI).
My current strategy is to do the following :
ffmpeg -re -f s16le -i /dev/zero -f v4l2 -thread_queue_size 512 -codec:v h264 -s 1920x1080 -i /dev/video0 -codec:v copy -acodec aac -ab 128k -g 50 http://localhost:8090/camera.ffm
(this is with dummy audio - I figured I would add audio later)Followed by
sudo ffserver -d -f /etc/ffserver.conf
to received the feed and broadcast it as a stream. This is theffserver.conf
file :`HTTPPort 8090
HTTPBindAddress 0.0.0.0
MaxHTTPConnections 2000
MaxClients 1000
MaxBandwidth 100000
CustomLog -
<feed>
File /tmp/streamwebm.ffm
FileMaxSize 50M
ACL allow localhost
ACL allow 128.199.149.46
#ACL allow 127.0.0.1
ACL allow 192.168.0.0 192.168.0.255
</feed>
<stream stream="stream">
Format webm
# Video Settings
VideoFrameRate 30
VideoSize 1920x1080
# Audio settings
AudioCodec libvorbis
AudioSampleRate 48000
AVOptionAudio flags +global_header
MaxTime 0
AVOptionVideo me_range 16
AVOptionVideo qdiff 4
AVOptionVideo qmin 4
AVOptionVideo qmax 40
#AVOptionVideo good
AVOptionVideo flags +global_header
# Streaming settings
PreRoll 10
StartSendOnKey
Metadata author "author"
Metadata copyright "copyright"
Metadata title "Web app name"
Metadata comment "comment"
</stream>My basic html is
<video> <source src="http://localhost:8090/stream"> </source></video>
The stream however, doesn’t work (the browser won’t connect) and I get the following :
And the browser on the client says
(failed) NET::ERR_CONNECTION_REFUSED
Thoughts :
Begin stream simple mp4 with ffserver explains that ffserver can’t stream .mp4 because of headers or something. This is why I am using webm (which doesn’t support h.264 I believe and is causing the really slow performance converting to vp9). I’m not concerned about CPU usage at the moment, just want to get an image to appear on the browser !
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I hear one issue deals with ’chunking’ - that the camera h.264 is a bitstream but h.264 streams for html5 should be chunked. Not sure how that would work.
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I have tried VLC for some things (RTP) but haven’t have success.
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Most resources (SE and other sites) are from 2010-2015 and it seems as thought v4l2 and other things have developed since then.
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As my problem is most likely general ignorance of the subject matter, I would appreciate any answers that provide some general understanding as to the theory behind different techniques. I know this makes the question more of a call for opinion and less appropriate for SE, but I’m fixing to throw my computer out the window (you know the feeling).
Thank you !
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