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< title > HTTP upload — Shaka Packager documentation< / title >
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accesskey="N">next< / a > |< / li >
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< blockquote >
< div > < p > 🛠 Status: Work in progress< / p >
< p > The Shaka Packager HTTP upload feature is currently in development.
It’
it and give us some feedback. However, there are things that haven’
been finalized yet so you can expect some changes.< / p >
< p > This document describes the current state of the implementation,
contributions are always welcome.< / p >
< p > The discussion about this feature currently happens at
< a class = "reference external" href = "https://github.com/google/shaka-packager/issues/149" > Add HTTP PUT output #149< / a > .< / p >
< / div > < / blockquote >
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< section id = "http-upload" >
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< h1 > HTTP upload< a class = "headerlink" href = "#http-upload" title = "Permalink to this headline" > ¶< / a > < / h1 >
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< section id = "introduction" >
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< h2 > Introduction< a class = "headerlink" href = "#introduction" title = "Permalink to this headline" > ¶< / a > < / h2 >
< p > Shaka Packager can upload produced artefacts to a HTTP server using
HTTP PUT requests with chunked transfer encoding to improve live
publishing performance when content is not served directly from
the packaging output location. For talking HTTP, < a class = "reference external" href = "https://curl.haxx.se/libcurl/" > libcurl< / a > is used.< / p >
< p > The produced artefacts are:< / p >
< ul class = "simple" >
< li > < p > < a class = "reference external" href = "https://en.wikipedia.org/wiki/HTTP_Live_Streaming" > HLS< / a > playlist files in < a class = "reference external" href = "https://en.wikipedia.org/wiki/M3U" > M3U< / a > Format encoded with UTF-8 (.m3u8)< / p > < / li >
< li > < p > Chunked audio segments encoded with AAC (.aac)< / p > < / li >
< li > < p > Chunked video segments encapsulated into the
< a class = "reference external" href = "https://en.wikipedia.org/wiki/MPEG_transport_stream" > MPEG transport stream< / a > container format (.ts)< / p > < / li >
< / ul >
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< section id = "references" >
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< h3 > References< a class = "headerlink" href = "#references" title = "Permalink to this headline" > ¶< / a > < / h3 >
< ul class = "simple" >
< li > < p > < a class = "reference external" href = "https://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html#sec9.6" > RFC 2616 about HTTP PUT< / a > < / p > < / li >
< li > < p > < a class = "reference external" href = "https://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.6.1" > RFC 2616 about Chunked Transfer Coding< / a > < / p > < / li >
< / ul >
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< / section >
< / section >
< section id = "documentation" >
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< h2 > Documentation< a class = "headerlink" href = "#documentation" title = "Permalink to this headline" > ¶< / a > < / h2 >
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< section id = "getting-started" >
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< h3 > Getting started< a class = "headerlink" href = "#getting-started" title = "Permalink to this headline" > ¶< / a > < / h3 >
< p > To enable the HTTP upload transfer mode, use < code class = "docutils literal notranslate" > < span class = "pre" > https:< / span > < / code > file paths for any
output files (e.g. < code class = "docutils literal notranslate" > < span class = "pre" > segment_template< / span > < / code > ).< / p >
< p > All HTTP requests will be declared as
< code class = "docutils literal notranslate" > < span class = "pre" > Content-Type:< / span > < span class = "pre" > application/octet-stream< / span > < / code > .< / p >
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< / section >
< section id = "synopsis" >
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< h3 > Synopsis< a class = "headerlink" href = "#synopsis" title = "Permalink to this headline" > ¶< / a > < / h3 >
< p > Here is a basic example. It is similar to the “live” example and also
borrows features from “FFmpeg piping”, see < a class = "reference internal" href = "live.html" > < span class = "doc" > Live< / span > < / a > and < a class = "reference internal" href = "ffmpeg_piping.html" > < span class = "doc" > FFmpeg piping< / span > < / a > .< / p >
< p > Define UNIX pipe to connect ffmpeg with packager:< / p >
< div class = "highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > export PIPE=/tmp/bigbuckbunny.fifo
mkfifo ${PIPE}
< / pre > < / div >
< / div >
< p > Acquire and transcode RTMP stream:< / p >
< div class = "highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > # Steady
ffmpeg -fflags nobuffer -threads 0 -y \
-i rtmp://184.72.239.149/vod/mp4:bigbuckbunny_450.mp4 \
-pix_fmt yuv420p -vcodec libx264 -preset:v superfast -acodec aac \
-f mpegts pipe: > ${PIPE}
< / pre > < / div >
< / div >
< p > Configure and run packager:< / p >
< div class = "highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > < span class = "c1" > # Define upload URL< / span >
< span class = "n" > export< / span > < span class = "n" > UPLOAD_URL< / span > < span class = "o" > =< / span > < span class = "n" > http< / span > < span class = "p" > :< / span > < span class = "o" > //< / span > < span class = "n" > localhost< / span > < span class = "p" > :< / span > < span class = "mi" > 6767< / span > < span class = "o" > /< / span > < span class = "n" > hls< / span > < span class = "o" > -< / span > < span class = "n" > live< / span >
< span class = "c1" > # Go< / span >
< span class = "n" > packager< / span > \
< span class = "s2" > " input=$< / span > < span class = "si" > {PIPE}< / span > < span class = "s2" > ,stream=audio,segment_template=$< / span > < span class = "si" > {UPLOAD_URL}< / span > < span class = "s2" > /bigbuckbunny-audio-aac-\$Number< / span > < span class = "si" > %04d< / span > < span class = "s2" > \$.aac,playlist_name=bigbuckbunny-audio.m3u8,hls_group_id=audio" < / span > \
< span class = "s2" > " input=$< / span > < span class = "si" > {PIPE}< / span > < span class = "s2" > ,stream=video,segment_template=$< / span > < span class = "si" > {UPLOAD_URL}< / span > < span class = "s2" > /bigbuckbunny-video-h264-450-\$Number< / span > < span class = "si" > %04d< / span > < span class = "s2" > \$.ts,playlist_name=bigbuckbunny-video-450.m3u8" < / span > \
< span class = "o" > --< / span > < span class = "n" > io_block_size< / span > < span class = "mi" > 65536< / span > < span class = "o" > --< / span > < span class = "n" > fragment_duration< / span > < span class = "mi" > 2< / span > < span class = "o" > --< / span > < span class = "n" > segment_duration< / span > < span class = "mi" > 2< / span > \
< span class = "o" > --< / span > < span class = "n" > time_shift_buffer_depth< / span > < span class = "mi" > 3600< / span > < span class = "o" > --< / span > < span class = "n" > preserved_segments_outside_live_window< / span > < span class = "mi" > 7200< / span > \
< span class = "o" > --< / span > < span class = "n" > hls_master_playlist_output< / span > < span class = "s2" > " $< / span > < span class = "si" > {UPLOAD_URL}< / span > < span class = "s2" > /bigbuckbunny.m3u8" < / span > \
< span class = "o" > --< / span > < span class = "n" > hls_playlist_type< / span > < span class = "n" > LIVE< / span > \
< span class = "o" > --< / span > < span class = "n" > vmodule< / span > < span class = "o" > =< / span > < span class = "n" > http_file< / span > < span class = "o" > =< / span > < span class = "mi" > 1< / span >
< / pre > < / div >
< / div >
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< / section >
< / section >
< section id = "client-authentication" >
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< h2 > Client Authentication< a class = "headerlink" href = "#client-authentication" title = "Permalink to this headline" > ¶< / a > < / h2 >
< p > If your server requires client authentication, you can add the following
arguments to enable it:< / p >
< ul class = "simple" >
< li > < p > < code class = "docutils literal notranslate" > < span class = "pre" > --ca_file< / span > < / code > : (optional) Absolute path to the Certificate Authority file for
the server cert. PEM format.< / p > < / li >
< li > < p > < code class = "docutils literal notranslate" > < span class = "pre" > --client_cert_file< / span > < / code > : Absolute path to client certificate file.< / p > < / li >
< li > < p > < code class = "docutils literal notranslate" > < span class = "pre" > --client_cert_private_key_file< / span > < / code > : Absolute path to the private Key file.< / p > < / li >
< li > < p > < code class = "docutils literal notranslate" > < span class = "pre" > --client_cert_private_key_password< / span > < / code > : (optional) Password to the private
key file.< / p > < / li >
< / ul >
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< / section >
< section id = "backlog" >
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< h2 > Backlog< a class = "headerlink" href = "#backlog" title = "Permalink to this headline" > ¶< / a > < / h2 >
< p > Please note the HTTP upload feature still lacks some features
probably important for production. Contributions are welcome!< / p >
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< section id = "http-delete" >
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< h3 > HTTP DELETE< a class = "headerlink" href = "#http-delete" title = "Permalink to this headline" > ¶< / a > < / h3 >
< p > Nothing has be done to support this yet:< / p >
< blockquote >
< div > < p > Packager supports removing old segments automatically.
See < code class = "docutils literal notranslate" > < span class = "pre" > preserved_segments_outside_live_window< / span > < / code > option in
< a class = "reference external" href = "https://en.wikipedia.org/wiki/Dynamic_Adaptive_Streaming_over_HTTP" > DASH< / a > options or < a class = "reference external" href = "https://en.wikipedia.org/wiki/HTTP_Live_Streaming" > HLS< / a > options for details.< / p >
< / div > < / blockquote >
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< / section >
< section id = "software-tests" >
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< h3 > Software tests< a class = "headerlink" href = "#software-tests" title = "Permalink to this headline" > ¶< / a > < / h3 >
< p > We should do some minimal QA, check whether the test
suite breaks and maybe add some tests covering new code.< / p >
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< / section >
< section id = "network-timeouts" >
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< h3 > Network timeouts< a class = "headerlink" href = "#network-timeouts" title = "Permalink to this headline" > ¶< / a > < / h3 >
< p > < a class = "reference external" href = "https://curl.haxx.se/libcurl/" > libcurl< / a > can apply network timeout settings. However,
we haven’ < / p >
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< / section >
< section id = "miscellaneous" >
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< h3 > Miscellaneous< a class = "headerlink" href = "#miscellaneous" title = "Permalink to this headline" > ¶< / a > < / h3 >
< ul class = "simple" >
< li > < p > Address all things TODO and FIXME< / p > < / li >
< li > < p > Make < code class = "docutils literal notranslate" > < span class = "pre" > io_cache_size< / span > < / code > configurable?< / p > < / li >
< / ul >
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< / section >
< / section >
< section id = "example-backend" >
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< h2 > Example Backend< a class = "headerlink" href = "#example-backend" title = "Permalink to this headline" > ¶< / a > < / h2 >
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< section id = "http-put-file-uploads-to-nginx" >
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< h3 > HTTP PUT file uploads to Nginx< a class = "headerlink" href = "#http-put-file-uploads-to-nginx" title = "Permalink to this headline" > ¶< / a > < / h3 >
< p > The receiver is based on the native < a class = "reference external" href = "http://nginx.org/" > Nginx< / a > module “< a class = "reference external" href = "http://nginx.org/en/docs/http/ngx_http_dav_module.html" > ngx_http_dav_module< / a > ”,
it handles HTTP PUT requests with chunked transfer encoding
like emitted by Shaka Packager.< / p >
< p > The configuration is very simple:< / p >
< div class = "highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > server {
listen 6767 default_server;
access_log /dev/stdout combined;
error_log /dev/stdout info;
root /var/spool;
location ~ ^/hls-live/(.+)$ {
dav_methods PUT;
create_full_put_path on;
proxy_buffering off;
client_max_body_size 20m;
}
}
< / pre > < / div >
< / div >
< p > Run Nginx:< / p >
< div class = "highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > nginx -p `pwd` -c nginx.conf -g " daemon off;"
< / pre > < / div >
< / div >
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< / section >
< section id = "http-put-file-uploads-to-caddy" >
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< h3 > HTTP PUT file uploads to Caddy< a class = "headerlink" href = "#http-put-file-uploads-to-caddy" title = "Permalink to this headline" > ¶< / a > < / h3 >
< p > The receiver is based on the < a class = "reference external" href = "https://caddyserver.com/" > Caddy< / a > webserver, it handles HTTP PUT
requests with chunked transfer encoding like emitted by Shaka Packager.< / p >
< p > Put this configuration into a < cite > Caddyfile< / cite > :< / p >
< div class = "highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > < span class = "c1" > # Bind address< / span >
< span class = "p" > :< / span > < span class = "mi" > 6767< / span >
< span class = "c1" > # Enable logging< / span >
< span class = "n" > log< / span > < span class = "n" > stdout< / span >
< span class = "c1" > # Web server root with autoindex< / span >
< span class = "n" > root< / span > < span class = "o" > /< / span > < span class = "n" > var< / span > < span class = "o" > /< / span > < span class = "n" > spool< / span >
< span class = "n" > redir< / span > < span class = "o" > /< / span > < span class = "n" > hls< / span > < span class = "o" > -< / span > < span class = "n" > live< / span > < span class = "p" > {< / span >
< span class = "k" > if< / span > < span class = "p" > {< / span > < span class = "n" > path< / span > < span class = "p" > }< / span > < span class = "ow" > is< / span > < span class = "s2" > " /" < / span >
< span class = "p" > }< / span >
< span class = "n" > browse< / span >
< span class = "c1" > # Enable upload with HTTP PUT< / span >
< span class = "n" > upload< / span > < span class = "o" > /< / span > < span class = "n" > hls< / span > < span class = "o" > -< / span > < span class = "n" > live< / span > < span class = "p" > {< / span >
< span class = "n" > to< / span > < span class = "s2" > " /var/spool/hls-live" < / span >
< span class = "p" > }< / span >
< / pre > < / div >
< / div >
< p > Run Caddy:< / p >
< div class = "highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > < span class = "n" > caddy< / span > < span class = "o" > -< / span > < span class = "n" > conf< / span > < span class = "n" > Caddyfile< / span >
< / pre > < / div >
< / div >
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< / section >
< / section >
< section id = "development-and-debugging" >
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< h2 > Development and debugging< a class = "headerlink" href = "#development-and-debugging" title = "Permalink to this headline" > ¶< / a > < / h2 >
< p > Watch the network:< / p >
< div class = "highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > < span class = "n" > ngrep< / span > < span class = "o" > -< / span > < span class = "n" > Wbyline< / span > < span class = "o" > -< / span > < span class = "n" > dlo< / span > < span class = "n" > port< / span > < span class = "mi" > 6767< / span >
< / pre > < / div >
< / div >
< p > Grab and run < a class = "reference external" href = "https://gist.github.com/amotl/3ed38e461af743aeeade5a5a106c1296" > httpd-reflector.py< / a > to use it as a dummy HTTP sink:< / p >
< div class = "highlight-default notranslate" > < div class = "highlight" > < pre > < span > < / span > < span class = "c1" > # Ready< / span >
< span class = "n" > wget< / span > < span class = "n" > https< / span > < span class = "p" > :< / span > < span class = "o" > //< / span > < span class = "n" > gist< / span > < span class = "o" > .< / span > < span class = "n" > githubusercontent< / span > < span class = "o" > .< / span > < span class = "n" > com< / span > < span class = "o" > /< / span > < span class = "n" > amotl< / span > < span class = "o" > /< / span > < span class = "mi" > 3< / span > < span class = "n" > ed38e461af743aeeade5a5a106c1296< / span > < span class = "o" > /< / span > < span class = "n" > raw< / span > < span class = "o" > /< / span > < span class = "n" > httpd< / span > < span class = "o" > -< / span > < span class = "n" > reflector< / span > < span class = "o" > .< / span > < span class = "n" > py< / span >
< span class = "n" > chmod< / span > < span class = "o" > +< / span > < span class = "n" > x< / span > < span class = "n" > httpd< / span > < span class = "o" > -< / span > < span class = "n" > reflector< / span > < span class = "o" > .< / span > < span class = "n" > py< / span >
< span class = "o" > ./< / span > < span class = "n" > httpd< / span > < span class = "o" > -< / span > < span class = "n" > reflector< / span > < span class = "o" > .< / span > < span class = "n" > py< / span > < span class = "o" > --< / span > < span class = "n" > port< / span > < span class = "mi" > 6767< / span >
< / pre > < / div >
< / div >
< hr class = "docutils" / >
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< / section >
< / section >
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< div class = "clearer" > < / div >
< / div >
< / div >
< / div >
< div class = "sphinxsidebar" role = "navigation" aria-label = "main navigation" >
< div class = "sphinxsidebarwrapper" >
< h3 > < a href = "../index.html" > Table of Contents< / a > < / h3 >
< ul >
< li > < a class = "reference internal" href = "#" > HTTP upload< / a > < ul >
< li > < a class = "reference internal" href = "#introduction" > Introduction< / a > < ul >
< li > < a class = "reference internal" href = "#references" > References< / a > < / li >
< / ul >
< / li >
< li > < a class = "reference internal" href = "#documentation" > Documentation< / a > < ul >
< li > < a class = "reference internal" href = "#getting-started" > Getting started< / a > < / li >
< li > < a class = "reference internal" href = "#synopsis" > Synopsis< / a > < / li >
< / ul >
< / li >
< li > < a class = "reference internal" href = "#client-authentication" > Client Authentication< / a > < / li >
< li > < a class = "reference internal" href = "#backlog" > Backlog< / a > < ul >
< li > < a class = "reference internal" href = "#http-delete" > HTTP DELETE< / a > < / li >
< li > < a class = "reference internal" href = "#software-tests" > Software tests< / a > < / li >
< li > < a class = "reference internal" href = "#network-timeouts" > Network timeouts< / a > < / li >
< li > < a class = "reference internal" href = "#miscellaneous" > Miscellaneous< / a > < / li >
< / ul >
< / li >
< li > < a class = "reference internal" href = "#example-backend" > Example Backend< / a > < ul >
< li > < a class = "reference internal" href = "#http-put-file-uploads-to-nginx" > HTTP PUT file uploads to Nginx< / a > < / li >
< li > < a class = "reference internal" href = "#http-put-file-uploads-to-caddy" > HTTP PUT file uploads to Caddy< / a > < / li >
< / ul >
< / li >
< li > < a class = "reference internal" href = "#development-and-debugging" > Development and debugging< / a > < / li >
< / ul >
< / li >
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