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FROM registry.sindominio.net/nginx
RUN apt-get update && apt-get install -y libnginx-mod-rtmp && apt-get clean
RUN rm -rf /var/www/html/*
# config nginx with rtmp app points
WORKDIR /tmp/
COPY nginx-rtmp.conf /tmp/
RUN cat /tmp/nginx-rtmp.conf >> /etc/nginx/nginx.conf
RUN mkdir -p /var/www/html/hls && \
chmod 777 /var/www/html/hls && \
mkdir -p /var/www/html/canal && \
chmod 777 /var/www/html/canal
# poner el index.html css y js
COPY index.html /var/www/html/
RUN mkdir -p /var/www/html/assets/
COPY assets/styles-sintoniza.css /var/www/html/assets/
COPY assets/video-js-7.20.3.min.css /var/www/html/assets/video-js.min.css
COPY assets/video-js-7.20.3.min.js /var/www/html/assets/video-js.min.js
COPY assets/jquery-3.6.1.slim.min.js /var/www/html/assets/jquery-slim.min.js
# copiar la configuración por defecto de nginx con nuestros cambios incluidos
COPY nginx-site-default.conf /etc/nginx/sites-available/default

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This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it under certain
conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands might
be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary. For
more information on this, and how to apply and follow the GNU GPL, see <https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General Public
License instead of this License. But first, please read <https://www.gnu.org/
licenses /why-not-lgpl.html>.

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---
title: streaming directo
---
# Recordario
Al realizar un _commit_ de los repositorios en Estibadores, deben estar firmados con tu clave pública GPG para permitir su uso en el sistema.
# Streaming video
Servido a traves de sintoniza.sindominio.net un canal para hacer streming video y audio.
Hemos seguido los pasos documentados por [guifi.net + exo](https://gitlab.com/guifi-exo) y explicados aqui (https://gitlab.com/guifi-exo/wiki/-/blob/master/howto/real-time-media/rtmp_streamer.md)
Usaremos el estandar [RTMP](https://en.wikipedia.org/wiki/Real-Time_Messaging_Protocol) Real-Time Messaging Protocol.
# creación del Dockerfile
## Install rtmp mod for nginx
```bash
apt install libnginx-mod-rtmp
```
## Preparar nginx para estrimear en `rtmp`
_Nginx puede estrimear codecs de HSL y Dash/MPEG, en **este ejemplo** únicamente veremos **HLS**_
en `/etc/nginx/nginx.conf` añadimos la configuración del fichero `nginx-rtmp.conf`
## Prepara los directorios para el streaming
La pagina se sirve desde `/var/www/html/` para automatizar el proceso de creación de Docker y usar la configuración por defecto de Nginx en Debian.
Crea el subdirectorio `/var/www/html/hls` donde los trozos de vídeos serán almacenados:
```bash
mkdir -P /var/www/html/live.sindominio.net/hls
```
le damos permisos de lectura, escritura y ejecución a cualquier user ya que montaremos el volumen fuera del docker
```bash
chmod 777 /var/www/html/hls
```
## Prepara tu web
Ponemos la página `index.html` en `/var/www/html/` para que la sirva por defecto.
Esta página llama a los ficheros js que permiten recibir y enviar video así como los css que dan forma gráfica y de usabilidad a la página.
Por organización y limpieza creamos el directorio `assets/` donde pondremos los siguiente ficheros:
* styles-sintoniza.css - diseño de nuestra página
* video-js.min.css - estilos del player (botones, ventana, volumen, etc...)
* video-js.min.css - interacción js del player, tanto para recibir como para enviar video
* jquery-slim.min.js - dependencia de jquery por parte del js del player
obtención de los ficheros:
**styles-sintoniza.css** los escribimos.
**videojs**: iremos a https://github.com/videojs/video.js/releases, bajaremos la última versión pero utilizaremos únicamente `video-js.min.css` y `video.min.js`. Si queremos traducciones también el directorio `lang/`
**jquery** : Bajaremos la última versión minimizada desde https://jquery.com/download/ y la renombraremos `jquery-slim.min.js`
## Servir la nueva web con nginx
_en este ejemplo asumimos que ya tienes los certificados creados con letsencrypt_
En el fichero por defecto añadimos el siguiente codigo
`/etc/nginx/sites-available/default` añade bajo el bloque `443 ssl`:
```
location /hls {
# Disable cache
add_header Cache-Control no-cache;
# CORS setup
add_header 'Access-Control-Allow-Origin' '*' always;
add_header 'Access-Control-Expose-Headers' 'Content-Length';
# allow CORS preflight requests
if ($request_method = 'OPTIONS') {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Max-Age' 1728000;
add_header 'Content-Type' 'text/plain charset=UTF-8';
add_header 'Content-Length' 0;
return 204;
}
types {
application/vnd.apple.mpegurl m3u8;
video/mp2t ts;
}
}
```
## Últimos pasos
### En el servidor
* controla tu firewall y permite la entrada de trafico por el puerto 1935
* haz que `/var/www/html/live.sindominio.net/` y sus contenidos puedan ser leidos por `www-data`
* comprueba y reinicia nginx `nginx -t` y luego `nginx -s reload`
### En tu ordenador
ahora puedes instalarte [OBS](https://obsproject.com/)
`apt install obs-studio`
Envia el directo a `rtmp://live.sindominio.net:1935/entrada/stream_key` y miralo en `https://live.sindominio.net/#stream_key`
# Extra
## `/etc/nginx/nginx.conf`
### configuraciones en el bloque `rtmp`
* Nginx te permite ajustar el HLS, instrucciones: https://nginx.org/en/docs/http/ngx_http_hls_module.html
* Si quieres que la gente pueda recibir el stream directamente comenta la línea "deny play all;"
* Puedes enviar el stream recibido directammente en `rtmp://live.sindominio.net/entrada/stream_name` a un servicio externo como _youtube.com_ añadiendo `push rtmp://a.rtmp.youtube.com/live2/stream_key;`
* Puedes enviar y recibir streams simultáneamente a otros lugares o páginas web añadiendo más bloques de `aplicacones` con diferentes nombres
## Otras referencias
- https://c3voc.de/wiki/distributed-conference
## traducción de los mensajes de _videojs_
Al pie de `index.html` o dónde tengas la llamada a
```html
<script>
$(function() {
if (window.location.hash) {
...
} else {
...
}
});
</script>
```
añade este código _js_ dentro de `if (window.location.hash){ }`
```html
<script>
$(function() {
if (window.location.hash) {
//some code here ...
videojs.addLanguage("es",{
"You aborted the media playback": "Has interrumpido la reproducción del vídeo.",
"A network error caused the media download to fail part-way.": "Un error de red ha interrumpido la bajada del vídeo.",
"The media could not be loaded, either because the server or network failed or because the format is not supported.": "La emisión no está activa en este momento.",
"The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "La reproducción del video se ha interrumpido debido a que el archivo estaba corrompido o por que tu navegador no soporta este formato.",
"No compatible source was found for this media.": "No se ha encontrado ningún origen para este medio."
});
videojs.addLanguage("ca",{
"You aborted the media playback": "Heu interromput la reproducció del vídeo.",
"A network error caused the media download to fail part-way.": "Un error de la xarxa ha interromput la baixada del vídeo.",
"The media could not be loaded, either because the server or network failed or because the format is not supported.": "La emissió està inactiva.",
"The media playback was aborted due to a corruption problem or because the media used features your browser did not support.": "La reproducció de vídeo s'ha interrumput per un problema de corrupció de dades o bé perquè el vídeo demanava funcions que el vostre navegador no ofereix.",
"No compatible source was found for this media.": "No s'ha trobat cap font compatible amb el vídeo."
});
//some code here ...
} else {
//some code here ...
}
});
</script>
```
# crear el stream de directos
Seguimos los pasos documentados en la trastienda
https://sindominio.net/trastienda/tecnica/servicios/streamingdirecto/
Incluir index.html,video-js.css, video.js and jquery-slim.min.js y ya lo tienes.
# Como hacer que jitsi haga stream en sintoniza
## solucion 1: hackeando jitsi
estable y funciona desde hace un tiempo según su autor:
https://github.com/jitsi/jitsi-meet/issues/2829#issuecomment-509712706
## solución 2: con un script ffmpeg
solucion no intusiva con jitis y permite striming de cualquier fuents.
https://community.jitsi.org/t/how-do-i-change-youtube-live-stream-to-another-rtmp-server-url/24817/7?u=lodopidolo
## solución 3: simulcast a cualquier otra págia
permite enviar simultáneamente a muchos streamers
https://community.jitsi.org/t/stream-to-any-or-multiple-rtmp-destinations-record-simultaneously/51943
## solución 4: rtmp nginix video por exo/guifipedro
https://gitlab.com/guifi-exo/wiki/-/blob/master/howto/rtmp_streamer.md

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/*only for video-js and live streaming*/
@media screen {
.contain{
width:100vw;
padding: 1rem;
}
.live-streaming .video-js, .live-streaming .video-dimensions {
width: calc(30vw * 3);
height: calc(15vw * 3);
}
}
@media screen and (min-width:768px) {
.dropdown:hover .menu,
.dropdown:hover .menu:hover {
display: inline-block;
}
.contain{
max-width:970px;
}
.live-streaming .video-js, .live-streaming .video-dimensions {
width: calc(30vw * 2);
max-width:970px;
height: calc(15vw * 2);
max-height:calc(970px / 2);
}
}

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sintoniza:
container_name: sintoniza
hostname: sintoniza
restart: always
image: registry.sindominio.net/sintoniza
user: 111:65534
ports:
- "0.0.0.0:8080:8080"

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<!doctype html>
<html lang="es">
<head>
<meta charset="utf-8"/>
<meta http-equiv="x-ua-compatible" content="ie=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>sintoniza.sindominio.net - tu streaming en sindominio - plataforma de emisiones en directo autogestionada por sindominio.net</title>
<link rel="stylesheet" type="text/css" href="assets/video-js.min.css">
<link rel="stylesheet" type="text/css" href="https://sindominio.net/semantic/semantic.min.css">
<link rel="stylesheet" type="text/css" href="https://sindominio.net/css/style.css">
<link rel="stylesheet" type="text/css" href="assets/styles-sintoniza.css">
<style type="text/css">
</style>
</head>
<body class="">
<main id="container">
<header>
<nav class="ui stackable teal inverted borderless menu">
<div class="item" style="margin-left: 2em;">
<img src="https://sindominio.net/img/sd-logo-bn-196.png" alt="logotipo sd">
</div>
<a class="active item" href="https://sindominio.net/">Inicio</a>
<div class="ui dropdown item" tabindex="0">
Herramientas <i class="dropdown icon"></i>
<div class="menu" tabindex="-1">
<a class="item" href="https://mail.sindominio.net">
<i class="envelope icon purple"></i>Correo
</a>
<a class="item" href="https://listas.sindominio.net">
<i class="envelope icon purple"></i>Listas
</a>
<a class="item" href="https://humo.sindominio.net">
<i class="cloud icon purple"></i>Nextcloud
</a>
<a class="item" href="https://git.sindominio.net">
<i class="git icon purple"></i>Git
</a>
<a class="item" href="https://chat.sindominio.net">
<i class="comment icon purple"></i>Chat
</a>
<a class="item" href="https://charlar.sindominio.net/mumble/?webrtc=false">
<i class="microphone icon purple"></i>Mumble
</a>
<a class="item" href="https://charlar.sindominio.net/jitsi">
<i class="video icon purple"></i>Jitsi
</a>
<a class="item" href="https://lowry.sindominio.net/">
<i class="heart icon purple"></i>Tu cuenta
</a>
</div>
</div>
<a class="item" href="https://sindominio.net/quienes_somos/">Quienes somos</a>
<a class="item" href="https://sindominio.net/apoyo/">Apoya este proyecto</a>
<a class="item" href="https://sindominio.net/contacto/">Contacto</a>
</nav>
<script>
$('.ui.dropdown')
.dropdown()
;
</script>
</header>
<div id="content-wrapper">
<div id="main" class="ui container">
<section>
<header class="">
<h1 id="title">sintoniza.sindominio.net</h1>
</header>
<article id="content">
<content class="live-streaming">
<video id="video" class="video-js" controls preload="auto" data-setup="{}"></video>
<div id="instructions" style="display:none;">
<p>
Para emitir en directo (crear un nuevo stream) sigue estos pasos:
<ol>
<li>escoge un <em>nombre_stream</em> único (una palabra que tenga sentdio para tu emisión)</li>
<li>ponlo en tu sofware de emisión de manera que envie la señal a <a href="rtmp://sintoniza.sindominio.net/entrada/"><em>rtmp://sintoniza.sindominio.net/entrada/</em></a> con la llave (strem key) <i>nombre_stream</i> que tu has elegido en el paso anterior.
</p>
<p>
En ese momento podrás ver el directo en:
<ul>
<li>https://sintoniza.sindominio.net/#<b>nombre_stream</b></li>
</ul>
</p>
<p>
Tambien puedes usar reproductor de video favorito (por ejemplo VLC) o incrustar el vídeo en tu web usarndo este enlace (URL):
<ul>
<li>https://sintoniza.sindominio.net/canal/<b>nombre_stream</b>.m3u8</li>
</ul>
</p>
</div>
</content>
</article>
</section>
</div>
</div>
<footer class="">
</footer>
</main>
<footer id="footer" class="sd-color ">
<div class="ui equal width center aligned padded grid">
<div class="row">
<div class="column firma-sd">
<i class="show-desktop">por un dominio antagonista en la red</i>
<a href="https://sindominio.net/" title="ir a SinDominio.net" class="ui mini image">
<span class="sd-logo"><i>SinDominio.net</i></span>
</a>
<i class="show-desktop">por la necesidad de comunicar libremente</i>
</div>
</div>
</div>
<div class="ui vertical segment">
<div class="ui container">
<div class="ui stackable inverted equal height centered stackable grid">
<div class="four wide column">
<h4 class="ui inverted header">Nosotras</h4>
<div class="ui inverted link list">
<a href="/quienes_somos/" class="item">Quienes somos</a>
<a href="/apoyo/" class="item">Apoyo</a>
<a href="https://wp.sindominio.net/sd/" class="item">Nuestro blog</a>
<a href="/historia/" class="item">Historia</a>
<a href="/contacto/" class="item">Contacto</a>
</div>
</div>
<div class="four wide column">
<h4 class="ui inverted header">Ayuda</h4>
<div class="ui inverted link list">
<a href="/participacion/" class="item">Quiero participar</a>
<a href="/ayuda/" class="item">Nuestras herramientas</a>
<a href="/otrosrecursos/" class="item">Otros recursos</a>
<a href="/referencias/" class="item">Proyetos afines</a>
</div>
</div>
</div>
</div>
</div>
</footer>
<script src="assets/jquery-slim.min.js"></script>
<script src="assets/video-js.min.js"></script>
<script>
$(function() {
if (window.location.hash) {
var name = window.location.hash.substr(1);
console.log('playing "' + name + '"');
$('#title').text('sintoniza.sindominio.net - ' + name);
var v = videojs('video');
v.src({type: 'application/x-mpegURL', src: '/canal/' + name + '.m3u8'});
} else {
$('#video').hide();
$('#instructions').show();
}
});
</script>
</body>
</html>

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rtmp {
# abre nginx para escuchar por el puerto
server {
listen 1935;
chunk_size 4096;
# dale un nombre a tu aplicacion
#log_format combined '$remote_addr [$time_local] $command "$app" "$name" "$args" - $bytes_received $bytes_sent "$pageurl" "$flashver" ($session_readable_time)'
application entrada {
live on;
# enciende HLS
hls on;
hls_path /var/www/html/canal/;
# ajustes de hls
hls_fragment 3;
hls_playlist_length 60;
# para bloquear el directo
# quita el comentario de la línea siguiente
# deny play all;
}
}
}

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server {
listen 8080 default_server;
root /var/www/html/;
index index.html;
server_name _;
access_log off;
location / {
try_files $uri $uri/ =404;
}
location /canal {
# Disable cache
add_header Cache-Control no-cache;
# CORS setup
add_header 'Access-Control-Allow-Origin' '*' always;
add_header 'Access-Control-Expose-Headers' 'Content-Length';
# allow CORS preflight requests
if ($request_method = 'OPTIONS') {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Max-Age' 1728000;
add_header 'Content-Type' 'text/plain charset=UTF-8';
add_header 'Content-Length' 0;
return 204;
}
types {
application/vnd.apple.mpegurl m3u8;
video/mp2t ts;
}
}
}