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Live Streaming

This service allows you to broadcast online video over the Internet without buying your own servers and having no experience in setting them up. Online broadcast will be distributed over CDN servers, it will be delivered to your clients from the nearest server.

A ready-made HTML5 player is provided for broadcasting video at your request, which can be easily added to any web page. Additionally, we recommend using transcoding, thanks to which you will receive an adaptive stream for different screens and devices.

LIVE resource creation

To get started, you need to create your resource. To do this, on the left in your personal account, select the CDN section, the "Live streaming" subitem, and then select "CREATE RESOURCE" in the upper right corner.

To set up a live video broadcast, you must select a method for delivering the stream to the publishing servers. You can provide us with a stream using 1 of 6 options: RTMP / RTSP-publish, HLS-pull, RTMP / RTSP-pull, MPEG-TS-publish, SRT-publish and Icecast-pull.

Pull and Publish are options for providing a stream. With Pull we take your stream, and with Publish you can send it to CDNvideo servers yourself.

LIVE resource configuration

RTMP/RTSP-publish

Description

To publish a stream, you need to configure special software - an encoder that supports the RTMP/RTSP-publish protocol.

Before creating a Live resource, we recommend that you familiarize yourself and select the required product in advance. You can familiarize yourself with the options, as well as receive detailed instructions on setting up encoders [here.] (https://doc.cdnvideo.com/en/Encoder_settings/FMLE/)

Configuration Guidelines

The first stream is created automatically. You are free to add or delete the streams as needed.

Please input the name of the stream or click the “Dice” icon to create it automatically.

Choose the stream quality from the drop down menu.

Important!

It`s not available to create more than 10 RTMP/RTSP-publish streams.

Attention

An exclusive ID-number is assigned to every stream. Please use these IDs when referring to technical support and your personal manager.

Click "CREATE RESOURCE".

The resource has been created! You`ll be taken to the “Setup instructions” tab.

There are two URLs provided for publishing (the major one and the backup one) and the Stream name including an authorizing token. Choose the desired way of publishing (RTMP or RTSP) for generating correct links.

Check the example below (RTMP-publish):

  • URL primary: rtmp://a.r.cdnvideo.net/livemaster/
  • URL backup: rtmp://b.r.cdnvideo.net/livemaster/
  • Streams: m97yox4iyw_0k1z5tsvxkb?auth=jkJt47ncuaFo78z1WXgAgJp

The backup URL is to be used only if there is enough bandwidth. When creating several streams, each of them will get its own Streams name.

If you need to publish a stream in several qualities, some encoders (e.g. Wirecast) will require the Streams names to be inserted individually. To check them all, click the “down arrow” button. If you use, e.g., FMLE 3.2, just copy the whole line.

Checking the Stream

After you get the publication links and configure your encoder, please make sure that the stream works properly. Open the “Player” tab, and if the encoder is configured properly, the player will play your live stream.

Choose the comfortable way to watch publishing: separated streams or union (SMIL-files)

Attention

Please use the “Code for embedding” frame to embed the player into your website.

Transcoding

This service is suitable for companies that do not have the opportunity to give us a stream with the following characteristics necessary for Internet broadcasting:

  • protocol: RTMP, RTSP, MPEG_TS;
  • video codec: h.264;
  • audio codec: AAC/mp3.

If you are unable to provide a stream with the specified parameters, as well as to reduce the cost of hardware and software, use the stream transcoding service.

This service is activated by default.

To activate the transcoding service on the page of creating or editing an RTMP-publish resource, you should:

  • specify the source stream that you will publish;
  • choose the suitable transcoding package (package parameters can be seen by clicking on the "Show details" button);
  • click on the button "CREATE RESOURCE" or "SAVE".

If you want to refuse this service and publish several qualities by yourself - deactivate it.

Attention

If you order a transcoding service, then you should specify ONLY ONE input stream.

Additional Configurations

Authorization
Local authorization

A decision on access to a stream is made by means of our network based on criteria indicated by the content owner. In this case, the user request authorization is done exclusively on the CDNvideo network; external resources are not used. At the time when the user is requesting protected resource the content owner should create a special reference.

Example:

http://example.a.trbcdn.net/path/to/stream/playlist.m3u8?md5=ycmYPfxHwqjnIM93o7JNOA&e=1387984517

The reference contains two authorization parameters:

  • ‘md5=’ — is a MD5 hash in Base64 format for URL that is generated based on the URI of the requested stream, lifetime of the reference, secret key, user’s IP address (optional);
  • ‘e=’ — is time of reference expiration in the POSIX time format.

When accessing the resource using the generated reference CDN calculates the MD5 value and compares it with the received value. If the MD5 values do not match, a response code ‘403 Forbidden’ (playback is denied) is returned to the user.

If the current time is greater than the “e” value (expires), a response code ‘410 Gone’ (the target is no longer available) is returned to the user.

An algorithm for calculating the MD5 hash using the user’s IP address as one of the input parameters is as follows:

md5 = base64_url(md5(SECRET/path/to/stream1.2.3.4expiretime))

An algorithm for calculating the MD5 hash if the user’s IP address doesn't impose:

md5 = base64_url(md5(SECRET/path/to/streamexpiretime))

Attention

The domain part of the URI while computing the hash is not used!

Attention

You can sign part of the path (for example, for /path/to/file, you can sign the file itself, /path/to, /path)

Example of URL generation:

  1. The following input data is available:

  2. Calculation of the timeline of reference validity. In the above example it is a week from the time of generation.

    $ php -r 'print time() + (7 * 24 * 60 * 60) . "\n";'
    1387984517
    

  3. Calculation of the MD5 hash in Base64 format for URL (path without playlist):
    $ php -r 'print str_replace("=", "",strtr(base64_encode(md5("zah5Mey9Quu8Ea1k/path/to/stream1.2.3.41387984517", TRUE)), "+/", "-_")) . "\n";'
    ycmYPfxHwqjnIM93o7JNOA
    
  4. Resulting reference:

    http://example.a.trbcdn.net/path/to/stream/playlist.m3u8?md5=ycmYPfxHwqjnIM93o7JNOA&e=1387984517

In local authorization the following parameters are controlled:

  1. URI of the stream being requested. It is verified whether the reference was established for exactly this stream.
  2. Secret key. It is verified whether the reference is established exactly by the content owner.
  3. Expiration time of reference validity (optional). You can cancel time validation via "Do not impose time restrictions".
  4. IP address of the user (optional). It is verified whether the stream is requested exactly from the IP address for which the reference was established. You can cancel IP address validation via "Do not impose IP address filter".
External authorization

External authorization is designed to be able to restrict access to the stream with custom logic described in your authorization script. A decision to access the stream is made based on response of your script.

If the authorization script responded with status code = 200, then access to the stream is allowed. Otherwise, access is denied.

The following headers are passed to the authorization script:

  • Host: contains the domain name of the server for which the request is intended;
  • X-Request-URI: contains the URI of the requested stream;
  • X-Forwarded-For: contains the real IP address of the user;
  • X-Remote-Addr: contains the IP address of the user or the proxy server.
DVR

Enable this option if you want to use the Live Navigation (DVR) function.

Before activating the service, a manager will contact you.

Stream recording

Activate this function if you need to save the stream recording.

Before activating the service, a manager will contact you.

Stream distribution protocols

By default, the ability to view broadcasts via HLS is provided. Activate this feature if you plan to use other streaming protocols (RTMP, MPEG-DASH, MSS, Low Latency Streaming).

Before activating the service, a manager will contact you.

Resource Name

To change the resource name please specify the new name and then click “SAVE”.

Attention

The resource Name is generated automatically during the creation stage.

HLS-pull

Description

Stream is pulled from the origin server to CDNvideo distribution server at the user’s first request and served from CDN cache for subsequent requests. The object received by the distribution server is cached for a specified time.

This method can be used if you have ready HTTP-based live streams:

  • Adobe HDS;
  • Apple HLS;
  • Microsoft Smooth Streaming (MSS).

Repackaging streams into any other formats and protocols is not available.

Configuration Guidelines

Content Source

It is important to configure your content source carefully. Afterwards the CDN network will request the mentioned source for content caching

Content source may be:

Attention

If you`ve got several content sources (primary/backup), you may configure priority for each of them. If the first priority content source is unavailable, CDN network will automatically switch to the next one. Switching back to the first one will happen automatically as well, when it is restored.

If you use hosting providers like Wix, Amazon S3, etc., please pay attention to the next section - “Hostname”.

Hostname

Many virtual hostings (like Amazon S3) commonly serve several websites from the same web server. So CDN network needs to know the precise Hostname to get access to your content.

If you don’t know your Hostname or where to find it, please try to check this service. Specify your website’s domain there and check the “Information” tab - “Resource Name”.

Here is what you should do if you don`t know your Hostname:

  1. Visit your website and copy a link to any image, having clicked at it with the right mouse button.
  2. Paste the link into a new Browser window. The domain you see will be a Content Resource for your website. E.g., if your website is running on Wix, the Content Resource will be the following domain: static.wixstatic.com
  3. Visit the following resource https://check-host.net and enter your website domain (not the one for Content Resource).
  4. Now check the “Information” tab - the “Resource Name” is your very Hostname. E.g., if your website is running on Amazon, your Hostname may look like: ec7-54-151-126-156.eu-west-1.compute.amazonaws.com
  5. Write the figured out Hostname in your account.

To download content from the source server to the distribution server cache, you need to provide a stream URL.

Specify the path to the stream. The domain name is automatically substituted from the "Source of Data".

Attention

You can specify several playlists.

Click "CREATE RESOURCE".

The resource has been created! You`ll be taken to the “Setup instructions + Player” tab.

Checking the Stream

After you get the publication links and configure your encoder, please make sure that the stream works properly.

Important!

You need to replace your original domain with the one, specified in "Your CDN-link" field. After that your content will deliver from the CDN network.

Attention

Please use the “Code for embedding” frame to embed the player into your website.

Additional Configurations

You can configure your CNAME, add your SSL certificate and change your resource name using Additional Settings.

By default, after the settings are saved, your content will be available via HTTPS and will look like: https://example.a.trbcdn.net.

SSL-certificate

To start with our service, you need to upload your certificate or generate a new one. To do this, click the “ADD CERTIFICATE” link in the upper right corner.

Then please choose the certificate you are planning to use for your resource:

CNAME

CNAME record allows to assign an alias to a host. It usually relates to some functional meaning, or just shortens the host`s name.

Your content will be available by default at example.a.trbcdn.net/images/1.jpg, but you may configure access to your content at cdn.example.com/images/1.jpg. You will need to create a CNAME record using the manual below. The record should be created on the servers to which your domain is delegated.

  1. Open the DNS management page at the website of your DNS hosting company.

  2. Create a CNAME record with the following data (the names of the textboxes may vary depending on the CMS):

  3. Wait until the DNS changes are effective. It may take up to 72 hours.

If you set your CNAME when setting up a live resource, the "Setup instructions + Player" tab will describe the setting of CNAME on your DNS server and provide an additional CDN link to the playlist.

Authorization
Local authorization

A decision on access to a stream is made by means of our network based on criteria indicated by the content owner. In this case, the user request authorization is done exclusively on the CDNvideo network; external resources are not used. At the time when the user is requesting protected resource the content owner should create a special reference.

Example:

http://example.a.trbcdn.net/path/to/stream/playlist.m3u8?md5=ycmYPfxHwqjnIM93o7JNOA&e=1387984517

The reference contains two authorization parameters:

  • ‘md5=’ — is a MD5 hash in Base64 format for URL that is generated based on the URI of the requested stream, lifetime of the reference, secret key, user’s IP address (optional);
  • ‘e=’ — is time of reference expiration in the POSIX time format.

When accessing the resource using the generated reference CDN calculates the MD5 value and compares it with the received value. If the MD5 values do not match, a response code ‘403 Forbidden’ (playback is denied) is returned to the user.

If the current time is greater than the “e” value (expires), a response code ‘410 Gone’ (the target is no longer available) is returned to the user.

An algorithm for calculating the MD5 hash using the user’s IP address as one of the input parameters is as follows:

md5 = base64_url(md5(SECRET/path/to/stream1.2.3.4expiretime))

An algorithm for calculating the MD5 hash if the user’s IP address doesn't impose:

md5 = base64_url(md5(SECRET/path/to/streamexpiretime))

Attention

The domain part of the URI while computing the hash is not used!

Attention

You can sign part of the path (for example, for /path/to/file, you can sign the file itself, /path/to, /path)

Example of URL generation:

  1. The following input data is available:

  2. Calculation of the timeline of reference validity. In the above example it is a week from the time of generation.

    $ php -r 'print time() + (7 * 24 * 60 * 60) . "\n";'
    1387984517
    

  3. Calculation of the MD5 hash in Base64 format for URL (path without playlist):
    $ php -r 'print str_replace("=", "",strtr(base64_encode(md5("zah5Mey9Quu8Ea1k/path/to/stream1.2.3.41387984517", TRUE)), "+/", "-_")) . "\n";'
    ycmYPfxHwqjnIM93o7JNOA
    
  4. Resulting reference:

    http://example.a.trbcdn.net/path/to/stream/playlist.m3u8?md5=ycmYPfxHwqjnIM93o7JNOA&e=1387984517

In local authorization the following parameters are controlled:

  1. URI of the stream being requested. It is verified whether the reference was established for exactly this stream.
  2. Secret key. It is verified whether the reference is established exactly by the content owner.
  3. Expiration time of reference validity (optional). You can cancel time validation via "Do not impose time restrictions".
  4. IP address of the user (optional). It is verified whether the stream is requested exactly from the IP address for which the reference was established. You can cancel IP address validation via "Do not impose IP address filter".
External authorization

External authorization is designed to be able to restrict access to the stream with custom logic described in your authorization script. A decision to access the stream is made based on response of your script.

If the authorization script responded with status code = 200, then access to the stream is allowed. Otherwise, access is denied.

The following headers are passed to the authorization script:

  • Host: contains the domain name of the server for which the request is intended;
  • X-Request-URI: contains the URI of the requested stream;
  • X-Forwarded-For: contains the real IP address of the user;
  • X-Remote-Addr: contains the IP address of the user or the proxy server.
DVR

Enable this option if you want to use the Live Navigation (DVR) function.

Before activating the service, a manager will contact you.

Stream recording

Activate this function if you need to save the stream recording.

Before activating the service, a manager will contact you.

Resource Name

To change the resource name please specify the new name and then click “SAVE”.

Attention

The resource Name is generated automatically during the creation stage.

RTMP/RTSP-PULL

Configuration Guidelines

To publish a stream, you must specify a link to a stream with the RTMP or RTSP protocol. After that, you need to select the distribution protocols: RTMP, HLS, MPEG-DASH, MSS or Low Latency Streaming. Before activating the service, a manager will contact you.

Stream transcoding

Enabling this service helps to avoid the buffering problem for viewers with slow internet connections and improve the user experience. This service must be activated to create multi-bitrate streams.

At the output, you get several streams of different quality, which allows the user to choose the option that suits him manually or leave an adaptive stream that adjusts automatically depending on the width of the user's channel.

When enabled, several packages are provided for your choice to convert the stream into several qualities.

Additional settings

SSL-certificate

Activate the service if you need to use an SSL certificate. You can use an existing certificate or issue a new one.

Player

Activate this service if you need a multifunctional HTML5 player.

Authorization
Local authorization

A decision on access to a stream is made by means of our network based on criteria indicated by the content owner. In this case, the user request authorization is done exclusively on the CDNvideo network; external resources are not used. At the time when the user is requesting protected resource the content owner should create a special reference.

Example:

http://example.a.trbcdn.net/path/to/stream/playlist.m3u8?md5=ycmYPfxHwqjnIM93o7JNOA&e=1387984517

The reference contains two authorization parameters:

  • ‘md5=’ — is a MD5 hash in Base64 format for URL that is generated based on the URI of the requested stream, lifetime of the reference, secret key, user’s IP address (optional);
  • ‘e=’ — is time of reference expiration in the POSIX time format.

When accessing the resource using the generated reference CDN calculates the MD5 value and compares it with the received value. If the MD5 values do not match, a response code ‘403 Forbidden’ (playback is denied) is returned to the user.

If the current time is greater than the “e” value (expires), a response code ‘410 Gone’ (the target is no longer available) is returned to the user.

An algorithm for calculating the MD5 hash using the user’s IP address as one of the input parameters is as follows:

md5 = base64_url(md5(SECRET/path/to/stream1.2.3.4expiretime))

An algorithm for calculating the MD5 hash if the user’s IP address doesn't impose:

md5 = base64_url(md5(SECRET/path/to/streamexpiretime))

Attention

The domain part of the URI while computing the hash is not used!

Attention

You can sign part of the path (for example, for /path/to/file, you can sign the file itself, /path/to, /path)

Example of URL generation:

  1. The following input data is available:

  2. Calculation of the timeline of reference validity. In the above example it is a week from the time of generation.

    $ php -r 'print time() + (7 * 24 * 60 * 60) . "\n";'
    1387984517
    

  3. Calculation of the MD5 hash in Base64 format for URL (path without playlist):
    $ php -r 'print str_replace("=", "",strtr(base64_encode(md5("zah5Mey9Quu8Ea1k/path/to/stream1.2.3.41387984517", TRUE)), "+/", "-_")) . "\n";'
    ycmYPfxHwqjnIM93o7JNOA
    
  4. Resulting reference:

    http://example.a.trbcdn.net/path/to/stream/playlist.m3u8?md5=ycmYPfxHwqjnIM93o7JNOA&e=1387984517

In local authorization the following parameters are controlled:

  1. URI of the stream being requested. It is verified whether the reference was established for exactly this stream.
  2. Secret key. It is verified whether the reference is established exactly by the content owner.
  3. Expiration time of reference validity (optional). You can cancel time validation via "Do not impose time restrictions".
  4. IP address of the user (optional). It is verified whether the stream is requested exactly from the IP address for which the reference was established. You can cancel IP address validation via "Do not impose IP address filter".
External authorization

External authorization is designed to be able to restrict access to the stream with custom logic described in your authorization script. A decision to access the stream is made based on response of your script.

If the authorization script responded with status code = 200, then access to the stream is allowed. Otherwise, access is denied.

The following headers are passed to the authorization script:

  • Host: contains the domain name of the server for which the request is intended;
  • X-Request-URI: contains the URI of the requested stream;
  • X-Forwarded-For: contains the real IP address of the user;
  • X-Remote-Addr: contains the IP address of the user or the proxy server.
DVR

Enable this option if you want to use the Live Navigation (DVR) function.

Stream recording

Activate this function if you need to save the stream recording.

Domains to allow requests from (CORS)

CORS - resource sharing between different sources - is a technology in modern browsers that allows web pages to access resources from a different domain.

You can choose from several options: allow for everyone, deny for everyone, and add a list of trusted domains.

MPEG-TS-PUBLISH

Configuration Guidelines

To organize broadcasting using the MPEG-TS protocol, you need to specify the points of organizing the junction of your stream with the stream through the CDNvideo server, for this fill out the form "Describe the possible points of organizing the junction (city, data center)".

After that, you need to select the distribution protocols: RTMP, HLS, MPEG-DASH, MSS or Low Latency Streaming.

Stream transcoding

Enabling this service helps to avoid the buffering problem for viewers with slow internet connections and improve the user experience. This service must be activated to create multi-bitrate streams.

At the output, you get several streams of different quality, which allows the user to choose the option that suits him manually or leave an adaptive stream that adjusts automatically depending on the width of the user's channel.

Additional settings

HTTPS support

Activate the service if you need HTTPS protocol. HTTPS is an extension of the standard HTTP protocol to support encryption for increased security.

SSL-certificate

Activate the service if you need to use an SSL certificate. You can use an existing certificate or issue a new one.

Player

Activate this service if you need a multifunctional HTML5 player.

Authorization
Local authorization

A decision on access to a stream is made by means of our network based on criteria indicated by the content owner. In this case, the user request authorization is done exclusively on the CDNvideo network; external resources are not used. At the time when the user is requesting protected resource the content owner should create a special reference.

Example:

http://example.a.trbcdn.net/path/to/stream/playlist.m3u8?md5=ycmYPfxHwqjnIM93o7JNOA&e=1387984517

The reference contains two authorization parameters:

  • ‘md5=’ — is a MD5 hash in Base64 format for URL that is generated based on the URI of the requested stream, lifetime of the reference, secret key, user’s IP address (optional);
  • ‘e=’ — is time of reference expiration in the POSIX time format.

When accessing the resource using the generated reference CDN calculates the MD5 value and compares it with the received value. If the MD5 values do not match, a response code ‘403 Forbidden’ (playback is denied) is returned to the user.

If the current time is greater than the “e” value (expires), a response code ‘410 Gone’ (the target is no longer available) is returned to the user.

An algorithm for calculating the MD5 hash using the user’s IP address as one of the input parameters is as follows:

md5 = base64_url(md5(SECRET/path/to/stream1.2.3.4expiretime))

An algorithm for calculating the MD5 hash if the user’s IP address doesn't impose:

md5 = base64_url(md5(SECRET/path/to/streamexpiretime))

Attention

The domain part of the URI while computing the hash is not used!

Attention

You can sign part of the path (for example, for /path/to/file, you can sign the file itself, /path/to, /path)

Example of URL generation:

  1. The following input data is available:

  2. Calculation of the timeline of reference validity. In the above example it is a week from the time of generation.

    $ php -r 'print time() + (7 * 24 * 60 * 60) . "\n";'
    1387984517
    

  3. Calculation of the MD5 hash in Base64 format for URL (path without playlist):
    $ php -r 'print str_replace("=", "",strtr(base64_encode(md5("zah5Mey9Quu8Ea1k/path/to/stream1.2.3.41387984517", TRUE)), "+/", "-_")) . "\n";'
    ycmYPfxHwqjnIM93o7JNOA
    
  4. Resulting reference:

    http://example.a.trbcdn.net/path/to/stream/playlist.m3u8?md5=ycmYPfxHwqjnIM93o7JNOA&e=1387984517

In local authorization the following parameters are controlled:

  1. URI of the stream being requested. It is verified whether the reference was established for exactly this stream.
  2. Secret key. It is verified whether the reference is established exactly by the content owner.
  3. Expiration time of reference validity (optional). You can cancel time validation via "Do not impose time restrictions".
  4. IP address of the user (optional). It is verified whether the stream is requested exactly from the IP address for which the reference was established. You can cancel IP address validation via "Do not impose IP address filter".
External authorization

External authorization is designed to be able to restrict access to the stream with custom logic described in your authorization script. A decision to access the stream is made based on response of your script.

If the authorization script responded with status code = 200, then access to the stream is allowed. Otherwise, access is denied.

The following headers are passed to the authorization script:

  • Host: contains the domain name of the server for which the request is intended;
  • X-Request-URI: contains the URI of the requested stream;
  • X-Forwarded-For: contains the real IP address of the user;
  • X-Remote-Addr: contains the IP address of the user or the proxy server.
DVR

Enable this option if you want to use the Live Navigation (DVR) function.

Stream recording

Activate this function if you need to save the stream recording.

Domains to allow requests from (CORS)

CORS - resource sharing between different sources - is a technology in modern browsers that allows web pages to access resources from a different domain.

You can choose from several options: allow for everyone, deny for everyone, and add a list of trusted domains.

SRT-PUBLISH

Configuration Guidelines

To organize broadcasting using the SRT (Secure Reliable Transport) protocol, you will need to specify the desired stream name and quality to be displayed in the player when selecting bitrates. Click the "Cubes" icon to automatically generate the name of the stream, and you can add up to 10 streams.

You also need to select the distribution protocols: RTMP, HLS, MPEG-DASH, MSS or Low Latency Streaming.

Stream transcoding

When this option is enabled, several packages are provided for your choice to convert the stream into several video playback qualities.

Additional settings

HTTPS support

Activate the service if you need HTTPS protocol. HTTPS is an extension of the standard HTTP protocol to support encryption for increased security.

SSL-certificate

Activate the service if you need to use an SSL certificate. You can use an existing certificate or issue a new one.

Player

Activate this service if you need a multifunctional HTML5 player.

Authorization
Local authorization

A decision on access to a stream is made by means of our network based on criteria indicated by the content owner. In this case, the user request authorization is done exclusively on the CDNvideo network; external resources are not used. At the time when the user is requesting protected resource the content owner should create a special reference.

Example:

http://example.a.trbcdn.net/path/to/stream/playlist.m3u8?md5=ycmYPfxHwqjnIM93o7JNOA&e=1387984517

The reference contains two authorization parameters:

  • ‘md5=’ — is a MD5 hash in Base64 format for URL that is generated based on the URI of the requested stream, lifetime of the reference, secret key, user’s IP address (optional);
  • ‘e=’ — is time of reference expiration in the POSIX time format.

When accessing the resource using the generated reference CDN calculates the MD5 value and compares it with the received value. If the MD5 values do not match, a response code ‘403 Forbidden’ (playback is denied) is returned to the user.

If the current time is greater than the “e” value (expires), a response code ‘410 Gone’ (the target is no longer available) is returned to the user.

An algorithm for calculating the MD5 hash using the user’s IP address as one of the input parameters is as follows:

md5 = base64_url(md5(SECRET/path/to/stream1.2.3.4expiretime))

An algorithm for calculating the MD5 hash if the user’s IP address doesn't impose:

md5 = base64_url(md5(SECRET/path/to/streamexpiretime))

Attention

The domain part of the URI while computing the hash is not used!

Attention

You can sign part of the path (for example, for /path/to/file, you can sign the file itself, /path/to, /path)

Example of URL generation:

  1. The following input data is available:

  2. Calculation of the timeline of reference validity. In the above example it is a week from the time of generation.

    $ php -r 'print time() + (7 * 24 * 60 * 60) . "\n";'
    1387984517
    

  3. Calculation of the MD5 hash in Base64 format for URL (path without playlist):
    $ php -r 'print str_replace("=", "",strtr(base64_encode(md5("zah5Mey9Quu8Ea1k/path/to/stream1.2.3.41387984517", TRUE)), "+/", "-_")) . "\n";'
    ycmYPfxHwqjnIM93o7JNOA
    
  4. Resulting reference:

    http://example.a.trbcdn.net/path/to/stream/playlist.m3u8?md5=ycmYPfxHwqjnIM93o7JNOA&e=1387984517

In local authorization the following parameters are controlled:

  1. URI of the stream being requested. It is verified whether the reference was established for exactly this stream.
  2. Secret key. It is verified whether the reference is established exactly by the content owner.
  3. Expiration time of reference validity (optional). You can cancel time validation via "Do not impose time restrictions".
  4. IP address of the user (optional). It is verified whether the stream is requested exactly from the IP address for which the reference was established. You can cancel IP address validation via "Do not impose IP address filter".
External authorization

External authorization is designed to be able to restrict access to the stream with custom logic described in your authorization script. A decision to access the stream is made based on response of your script.

If the authorization script responded with status code = 200, then access to the stream is allowed. Otherwise, access is denied.

The following headers are passed to the authorization script:

  • Host: contains the domain name of the server for which the request is intended;
  • X-Request-URI: contains the URI of the requested stream;
  • X-Forwarded-For: contains the real IP address of the user;
  • X-Remote-Addr: contains the IP address of the user or the proxy server.
DVR

Enable this option if you want to use the Live Navigation (DVR) function.

Stream recording

Activate this function if you need to save the stream recording.

Encryption of SRT connection

Activate this service if you plan to use encryption of SRT connection.

Domains to allow requests from (CORS)

CORS - resource sharing between different sources - is a technology in modern browsers that allows web pages to access resources from a different domain.

You can choose from several options: allow for everyone, deny for everyone, and add a list of trusted domains.

ICECAST-PULL

Configuration Guidelines

To publish a stream, you must specify a link to a stream with the ICECAST protocol. After that, you need to select the protocols for further distribution: RTMP, HLS, MPEG-DASH, MSS or Low Latency Streaming.

Additional settings

SSL-certificate

Activate the service if you need to use an SSL certificate. You can use an existing certificate or issue a new one.

Authorization
Local authorization

A decision on access to a stream is made by means of our network based on criteria indicated by the content owner. In this case, the user request authorization is done exclusively on the CDNvideo network; external resources are not used. At the time when the user is requesting protected resource the content owner should create a special reference.

Example:

http://example.a.trbcdn.net/path/to/stream/playlist.m3u8?md5=ycmYPfxHwqjnIM93o7JNOA&e=1387984517

The reference contains two authorization parameters:

  • ‘md5=’ — is a MD5 hash in Base64 format for URL that is generated based on the URI of the requested stream, lifetime of the reference, secret key, user’s IP address (optional);
  • ‘e=’ — is time of reference expiration in the POSIX time format.

When accessing the resource using the generated reference CDN calculates the MD5 value and compares it with the received value. If the MD5 values do not match, a response code ‘403 Forbidden’ (playback is denied) is returned to the user.

If the current time is greater than the “e” value (expires), a response code ‘410 Gone’ (the target is no longer available) is returned to the user.

An algorithm for calculating the MD5 hash using the user’s IP address as one of the input parameters is as follows:

md5 = base64_url(md5(SECRET/path/to/stream1.2.3.4expiretime))

An algorithm for calculating the MD5 hash if the user’s IP address doesn't impose:

md5 = base64_url(md5(SECRET/path/to/streamexpiretime))

Attention

The domain part of the URI while computing the hash is not used!

Attention

You can sign part of the path (for example, for /path/to/file, you can sign the file itself, /path/to, /path)

Example of URL generation:

  1. The following input data is available:

  2. Calculation of the timeline of reference validity. In the above example it is a week from the time of generation.

    $ php -r 'print time() + (7 * 24 * 60 * 60) . "\n";'
    1387984517
    

  3. Calculation of the MD5 hash in Base64 format for URL (path without playlist):
    $ php -r 'print str_replace("=", "",strtr(base64_encode(md5("zah5Mey9Quu8Ea1k/path/to/stream1.2.3.41387984517", TRUE)), "+/", "-_")) . "\n";'
    ycmYPfxHwqjnIM93o7JNOA
    
  4. Resulting reference:

    http://example.a.trbcdn.net/path/to/stream/playlist.m3u8?md5=ycmYPfxHwqjnIM93o7JNOA&e=1387984517

In local authorization the following parameters are controlled:

  1. URI of the stream being requested. It is verified whether the reference was established for exactly this stream.
  2. Secret key. It is verified whether the reference is established exactly by the content owner.
  3. Expiration time of reference validity (optional). You can cancel time validation via "Do not impose time restrictions".
  4. IP address of the user (optional). It is verified whether the stream is requested exactly from the IP address for which the reference was established. You can cancel IP address validation via "Do not impose IP address filter".
External authorization

External authorization is designed to be able to restrict access to the stream with custom logic described in your authorization script. A decision to access the stream is made based on response of your script.

If the authorization script responded with status code = 200, then access to the stream is allowed. Otherwise, access is denied.

The following headers are passed to the authorization script:

  • Host: contains the domain name of the server for which the request is intended;
  • X-Request-URI: contains the URI of the requested stream;
  • X-Forwarded-For: contains the real IP address of the user;
  • X-Remote-Addr: contains the IP address of the user or the proxy server.
DVR

Enable this option if you want to use the Live Navigation (DVR) function.

Works only with HLS distribution.

Stream recording

Activate this function if you need to save the stream recording.

Works only with HLS distribution.